CN115582481A - Continuous stamping and forming device for circular saw blade - Google Patents

Abstract

The invention discloses a circular saw blade continuous punch forming device which comprises an upper die base, a male die, an upper die fixing plate, a female die and a lower die base which are sequentially arranged from top to bottom, wherein a blanking groove is formed between the female die and the lower die base, guide plates are arranged on two sides of the top end of the female die, a lifting structure is arranged between the upper die fixing plate, the female die and the lower die base and close to the guide plates, and the lifting structure is positioned on one side of the blanking groove. The continuous punch forming device for the circular saw blade, disclosed by the invention, has the advantages that the situation that a conventional limiting device is transversely floated and a notch which is not limited is buckled is avoided, the saw blade is prevented from being retained in the charging chute, the phenomenon that saw teeth at the edge of the circular saw blade are contacted with equipment due to the fact that the circular saw blade falls in an inclined mode, the saw teeth of the circular saw blade cannot be deformed or bent, the material shifting structure, the supporting structure and the control structure are driven by the lifting structure to operate in a unified mode, and the material shifting structure, the supporting structure and the control structure are enabled to be mutually cooperated.

Description

A continuous stamping and forming device for circular saw blades

technical field

The invention relates to the field of continuous stamping dies, in particular to a continuous stamping forming device for circular saw blades.

Background technique

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

However, there are certain disadvantages in the existing continuous stamping dies for circular saw blades. After punching the circular saw blades, there will be a circle of saw teeth on the edge of the circular saw blades. If the saw teeth are dropped directly, it is easy to be affected by the blanking groove The saw teeth will collide with the equipment, especially when the saw teeth fall vertically, it is easy to cause the saw teeth to bend or deform, which not only affects the size and accuracy of the circular saw blade, but also affects the post-processing. When the die and the punch are matched, because there are burrs or burrs on the edge of the sheet, the sheet is easy to be stuck at the blanking chute, so that the sheet in the blanking chute will be punched by other punches during the next punching. The sheet can only be blanked when it is pushed out.

Contents of the invention

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 art.

In order to achieve the above object, the technical scheme that the present invention takes is:

A continuous stamping and forming device for circular saw blades, comprising an upper mold base, a punch, an upper mold fixing plate, a die, and a lower mold base installed sequentially from top to bottom. Material trough, the two sides of the top of the die are provided with material guide plates, and a lifting structure is installed between the fixed plate of the upper die, the die and the lower die base and close to the material guide plate, and the lifting structure is located at the blanking one side of the groove;

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

As a preferred technical solution of the present invention, a matching groove is opened at the top of the reserved groove, and the shape of the matching groove matches both the limit block and the matching block, and the depth of the matching groove is greater than the thickness of the limit block.

As a preferred technical solution of the present invention, a material shifting structure is provided inside the die and between the blanking trough and the reserved groove, the material shifting structure includes a placement cavity, and the placement cavity is opened in the blanking Between the groove and the reserved groove, and the blanking groove, the placement cavity is connected with the reserved groove, the inside of the placement cavity is provided with a rotating pin, a connecting rod and a bending rod, and the rotating pin is set inside the placement cavity, And the rotating pin is connected to the connecting rod in rotation, and the connecting rod and the bending rod are integrated, a driving rod is arranged in the middle of the connecting rod, and one end of the driving rod is connected with the bending rod, and the other end of the driving rod is sleeved with a Second spring.

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 an inverted opening is opened at the communication place between the placement cavity and the reserved groove. bevel.

As a preferred technical solution of the present invention, a support structure is provided inside the die and at the lower end of the blanking chute, the support structure includes a fixed plate, and the fixed plate is threadedly arranged at the lower end of the blanking chute, A limiting ring is arranged on the surface of the fixed disk, 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 several support rods are arranged on the surface of the fixed disk, And a third spring is connected between the rotating ring and each supporting rod.

As a preferred technical solution of the present invention, one end of the support rod is provided with a pin shaft, and the support rod is rotatably connected to the pin shaft, the surface of the fixed plate is located in the middle of the support rod and is welded with a limit pin shaft, and the support rod The other end is connected with the third spring.

As a preferred technical solution of the present invention, a control structure is provided between the lower end of the lifting structure and the support 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 A transmission thread is provided, the lower end of the connecting rod is connected with the sleeve through the transmission thread, the bottom end of the reserved groove is threaded with a retaining ring, and the retaining ring is located below the sleeve, and the edge of the fixed plate is welded with In the guide ring, the side wall of the rotating ring is welded with a fixing buckle, and the outer cylindrical surface of the sleeve is wound with a connecting rope, and the connecting rope runs through the inside of the guiding ring and is connected with the fixing buckle.

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.

As a preferred technical solution of the present invention, the four corners of the upper die base and the upper die fixing plate are provided with guide posts and guide sleeves, and the four corners of the punch are slidably connected with the guide posts, and the middle of the punch is set There is a die handle, and the die handle runs through the inside 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 and the lower die base are fixed by bolts.

The beneficial effects of the present invention are as follows:

It is equipped with a lifting structure, and the first spring pushes the connecting rod up and down so that the limit block can float, so that it can be aligned and limited when pushing to make the circular saw blade, and only the incision of the plate can be made by the lifting limit block The limit can only be carried out by matching with the matching block and the limit block, avoiding the situation where the conventional limit device moves horizontally and buckles the notch that is not a limit;

There is a material dialing structure, the connecting rod is pressed down when the mold is closed, at this time the connecting rod can rotate around the rotating pin, and when turning in one direction, the saw blade just punched out can be moved, so that The saw blade can fall from the inside of the blanking trough, and the saw blade is prevented from staying 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, and there is no need for punching. It will affect the normal punching of the mold;

By setting the lever, when the lever is toggled, it is ensured that the connecting rod can be in contact with the bent rod when it is raised and lowered, so that the material shifting structure can work normally, and the lever moves in the reserved groove, which can limit the lifting and lowering of the connecting rod. ;

There is a support structure, under normal conditions, the support rods are exposed from the blanking trough, and the circular saw blades moved by the dial structure fall horizontally between the support rods, and the circular saw blades fall relatively smoothly in the later stage, avoiding the circular saw blades from falling obliquely Cause the saw teeth on the edge of the circular saw blade to be in contact with the equipment, and will not cause deformation and bending of the saw teeth of the circular saw blade;

There is a control structure, when the connecting rod is lowered, 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 is raised, the connecting rope is in a loose state, so that the supporting rod can be Exhibited support for circular saw blades;

The lifting structure drives the material shifting structure, support structure and control structure to operate in a unified manner, and makes the material shifting structure, support structure and control structure cooperate with each other, and the punched circular saw blade is moved and falls smoothly to avoid circular saw blades. The sheet cannot be blanked normally or the saw teeth are bent after blanking.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a circular saw blade continuous stamping forming device of the present invention;

Fig. 2 is a structural disassembly schematic diagram of a circular saw blade continuous stamping forming device of the present invention;

Fig. 3 is a schematic diagram of the internal structure of a circular saw blade continuous stamping forming device of the present invention;

Figure 4 is an enlarged view of A in Figure 3;

Figure 5 is an enlarged view at B in Figure 4;

Fig. 6 is a schematic diagram of a supporting structure of a circular saw blade continuous stamping forming device of the present invention;

Fig. 7 is a disassembled schematic diagram of a supporting structure of a circular saw blade continuous stamping forming device according to the present invention;

Fig. 8 is a schematic diagram of the control structure of a circular saw blade continuous stamping forming device according to the present invention.

In the figure: 1. Upper mold base; 2. Punch mold; 3. Upper mold fixing plate; 4. Die; 5. Lower mold base; 6. Material guide plate; 7. Lifting structure; 8. Blanking trough; 9 1. Dial structure; 10. Support structure; 11. Control structure; 701. Cooperating block; 702. Reserved slot; 703. First spring; 704. Connecting rod; 705. Limiting block; Placement cavity; 902, rotating pin; 903, connecting rod; 904, bent rod; 905, driving rod; 906, second spring; 1001, fixed plate; 1002, limit ring; 1003, support rod; 1005, rotating ring; 1101, sleeve; 1102, transmission thread; 1103, retaining ring; 1104, guide ring; 1105, connecting rope; 1106, fixed buckle.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Figure 1-8, a circular saw blade continuous stamping and forming device includes an upper mold base 1, a punch 2, an upper mold fixing plate 3, a concave mold 4, and a lower mold base 5 installed sequentially from top to bottom. The four corners of the upper die base 1 and the upper die fixing plate 3 are provided with guide posts and guide sleeves, and the four corners of the punch 2 are slidingly connected with the guide posts, and the middle of the punch 2 is provided with a handle, and the die handle runs through the upper die Inside the base 1, the middle of the bottom 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, and the upper die base 1, the punch 2, and the upper die are fixed. The plate 3, the die 4, and the lower die base 5 are assembled, and the handle of the punch 2 is connected with the press, so that the mold can be closed and opened when the press lifts up and down, so that the lower die of the punch 2 The protruding part of the surface is closed or opened with the die 4, and the die 2 is lifted and lowered along the guide post and guide sleeve during this period to ensure that the die 2 and the die 4 are accurately aligned. Blanking chute 8, since there are two blanking troughs 8 with different sizes, when punching, the small blanking chute 8 punches the rotating shaft of the circular saw blade, and the large blanking chute 8 will punch out the circular saw blade The shape of the sawtooth or the shape of the outer disc, the two sides of the top of the die 4 are provided with a material guide plate 6, and the sheet material is conveyed along the material guide plate 6 under the pull of the tractor during work to avoid the deviation of the sheet material A lifting structure 7 is installed between the upper mold fixing plate 3, the die 4 and the lower mold base 5 and close to the material guide plate 6. The lifting structure 7 is located on one side of the blanking groove 8, and the lifting structure 7 drives the material pushing structure 9. The support structure 10 and the control structure 11 are operated in a unified manner, and the material shifting structure 9, the support structure 10 and the control structure 11 cooperate with each other, and the punched circular saw blade is stably dropped after being moved to avoid the circular saw blade Failed to blank normally or the sawtooth bends after blanking;

The lifting structure 7 includes a reserved groove 702 and a connecting rod 704. The reserved groove 702 is set inside the die 4, and the reserved groove 702 is located on one side of the blanking groove 8, and the connecting rod 704 is located inside the reserved groove 702. The connecting rod 704 moves up and down along the inside of the reserved groove 702, the top of the connecting rod 704 is provided with a limit block 705, and the lower surface of the upper die fixing plate 3 is welded with a matching block 701 at a position corresponding to the limit block 705, Since the cross-sectional shape of the fitting block 701 and the limiting block 705 are the same and their positions are corresponding, when the upper die fixing plate 3 moves up and down along with the punch 2, the fitting block 701 of the upper die fixing plate 3 is in contact with the limiting block 705 , and then the fitting block 701 pushes the limiting block 705 to the inside of the reserved groove 702, without affecting the limit of the sheet metal by the fitting block 701 and the limiting block 705, the top of the lower die base 5 is located at the bottom of the connecting rod 704 The end is provided with a fixing groove 706, and the inside of the fixing groove 706 is provided with a first spring 703, and the first spring 703 is in contact with the bottom end of the connecting rod 704, and 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 are raised together, and at this time, under the elastic force of the first spring 703 in the fixing groove 706, the connecting rod 704 is raised 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 notch of the plate can be limited by the floating limit block 705 .

In this embodiment, the top of the reserved groove 702 is provided with a matching groove, and the shape of the matching groove matches 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 701 and the limit block 705 are matched, the limit block 705 can be pushed through the matching block 701, and the sheet with the notch is clamped at the match block 701 and the limit block 705, so as to avoid the relative position during punching. , to improve the accuracy of punching the blank, the first spring 703 of the lifting structure 7 pushes the connecting rod 704 up and down so that the limiting block 705 can float, so that it can be aligned and limited when pushing to make the circular saw blade blank, and through The lifting limit block 705 makes the limit only when the slit of the sheet material matches the mating block 701 and the limit block 705, so as to avoid the situation that the conventional limit device horizontally floats and engages with the notch that is not a limit.

In this embodiment, a material shifting structure 9 is provided inside the die 4 and between the blanking chute 8 and the reserved groove 702. The material shifting structure 9 includes a placement cavity 901, and the placement cavity 901 is opened between the blanking slot 8 and the reserved slot 702. Between the remaining grooves 702, and the blanking groove 8, the placement cavity 901 is 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 curved rod 904 have Sufficient space for rotation, the inside of the placement cavity 901 is provided with a rotation pin 902, a connecting rod 903 and a curved rod 904, the rotation pin 902 is erected inside the placement cavity 901, and the rotation pin 902 is connected to the connection rod 903 in rotation, close to the blanking chute One end of the connecting rod 903 at 8 is rotated to the highest position, and now the connecting rod 903 is still located in the inside of the placement chamber 901, and when the connecting rod 903 is rotated to the horizontal position, the connecting rod 903 pulls the end of the connecting rod 903 from the placement chamber 901. part is exposed, the connecting rod 903 and the curved rod 904 are integrated, a driving rod 905 is arranged in the middle of the connecting rod 704, and one end of the driving rod 905 is connected with the bending rod 904, and the other end of the driving rod 905 is sleeved with a second The spring 906 and the driving rod 905 will be in contact with the curved rod 904 when lifting and lowering, thereby driving the curved rod 904 to deflect, and the second spring 906 pushes the driving rod 905 to contact the curved rod 904. By setting the driving rod 905, the When the rod 905 is toggled, it is ensured that the connecting rod 704 can be bent when the connecting rod 704 is raised and lowered, so that the rod 904 can be in contact with each other to ensure the normal operation of the material shifting structure 9, and the shifting rod 905 moves in the reserved groove 702, which can limit the lifting of the connecting rod 704 .

In this embodiment, 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 place where the placement cavity 901 communicates with the reserved groove 702, The second spring 906 in the driving rod 905 can be compressed when the driving rod 905 is moved to the limited position through the bevel, so that the driving rod 905 is always in contact with the end of the curved rod 904, avoiding the contact between the driving rod 905 and the curved rod. 904 is loosened, and the connecting rod 704 is pressed down when the mold is closed. At this time, the connecting rod 903 can rotate around the rotating pin 902. When turning in one direction, the saw blade just punched out can be moved. In this way, the saw blade can fall from the inside of the blanking chute 8 to prevent the saw blade from staying in the inside of the blanking chute 8; when the connecting rod 704 rises, the connecting rod 903 rotates in the opposite direction so that the connecting rod 903 is stored in the placement cavity 901 , It will not affect the normal punching of the die during punching.

In this embodiment, the inside of the die 4 and the lower end of the blanking chute 8 are provided with a support structure 10, the support structure 10 includes a fixed plate 1001, and the fixed plate 1001 is arranged on the lower end of the blanking chute 8 by threads. 1001 is screwed on the lower end of blanking chute 8, and guarantees that the inner diameter of fixed disc 1001 is greater than the inner diameter of blanking trough 8, guarantees that blanking can fall from fixed disc 1001, and the surface of fixed disc 1001 is provided with limiting ring 1002, and fixed disc 1001 A rotating ring 1005 is installed between the limiting ring 1002, and the rotating ring 1005 is rotationally connected with the fixed disk 1001. The axes between the fixed disk 1001, the limiting ring 1002 and the rotating ring 1005 are all the same, and the surface of the fixed disk 1001 is provided with Several support rods 1003 ensure that the support rod 1003 will not affect it when the rotating ring 1005 rotates, and the third spring 1004 is connected between the rotating ring 1005 and each supporting rod 1003. When rotating, 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 conditions, the support rod 1003 is exposed from the blanking groove 8. The circular saw blade moved by the structure 9 falls horizontally between the support rods 1003, and the circular saw blade falls relatively smoothly in the later stage, so as to prevent the saw teeth on the edge of the circular saw blade from contacting the equipment when the circular saw blade falls obliquely, and will not cause damage to the circular saw blade. The teeth deform and bend.

In this embodiment, one end of the support rod 1003 is provided with a pin shaft, and the support rod 1003 is rotatably connected with the pin shaft. The third spring 1004 is connected, and when the third spring 1004 is pulled, the support bar 1003 deflects, so that the dropped material sheet can fall from the support bar 1003 again, and the third spring 1004 will be against the support when it is in a relaxed state The rod 1003 is in contact with the limit pin, and can support the falling circular saw blade.

In this embodiment, a control structure 11 is provided between the lower end of the lifting structure 7 and the supporting structure 10, the control structure 11 includes a sleeve 1101, the sleeve 1101 is arranged 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, the transmission thread 1102 is similar to the structure of the hand-pushed frisbee of children's toys. As long as the hand-push frisbee and the threaded rod move each other, the frisbee can rotate, and the lower end of the connecting rod 704 is connected with the sleeve 1101 through the transmission thread 1102. The sleeve 1101 can rotate a certain number of turns relative to the connecting rod 704. The bottom end of the reserved groove 702 is threaded with a retaining ring 1103, and the retaining ring 1103 is located below the sleeve 1101. The retaining ring 1103 prevents the sleeve 1101 from Floating up and down to ensure the rotation between the sleeve 1101 and the connecting rod 704, the edge of the fixed plate 1001 is welded with a guide ring 1104, the side wall of the rotating ring 1005 is welded with a fixed buckle 1106, and the outer cylindrical surface of the sleeve 1101 is wound with a connecting rope 1105 , and the connecting rope 1105 runs through the inside of the guide ring 1104 and is connected with the fixing buckle 1106, the connecting rope 1105 can be tightened by the rotation of the sleeve 1101, so that the end of the connecting rope 1105 can drive the rotating ring 1005 to rotate, so that the rotating The ring 1005 and the fixed disk 1001 move relative to each other. When a loose state occurs between the sleeve 1101 and the connecting rope 1105, at this time, under the action of the third spring 1004 between the rotating ring 1005 and the fixed disk 1001, the fixed disk 1001 and the fixed disk 1001 Rotate the ring 1005 to restore the original state.

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 connecting rope 1105 and the fixed disk 1001 can be prevented by the guide ring 1104. Clamping or knotting with 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 steadily; when the connecting rod 704 is raised The connecting rope 1105 is in a relaxed state, so that the support rod 1003 can be extended to support the circular saw blade.

It should be noted that the present invention is a continuous stamping and forming device for circular saw blades. Before use, the 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 die 4, and Pull one end of the sheet material through the traction mechanism, so that the sheet material can continuously enter the interior of the mold, and then when the mold is closed, the punch 2 and the upper mold fixing plate 3 are lowered by the press, at this time The edge of the sheet will be punched out of the limit notch through the 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 will be punched out through the lower surface of the punch 2. When the mold is opened, it has just been punched The small hole moves to the larger blanking groove 8. At this time, the limit block 705 that can be lifted is engaged with the limit notch, so that the sheet can be advanced by a certain length. When the mold is closed again, the punch 2 and the upper mold fixed plate 3 move downward together, the cooperating block 701 presses the limit block 705 tightly, and then the lever 905 of the lifting structure 7 drives the bending rod 904 to swing, so that the connecting rod 903 is put away, and at the same time , the transmission thread 1102 of the connecting rod 704 is matched with the sleeve 1101, so that the connecting rope 1105 pulls the rotating ring 1005 to rotate in the fixed plate 1001, so that the third spring 1004 of the rotating ring 1005 pulls the supporting rod 1003 to swing. The falling sheet material will fall from the support rod 1003, and the sheet material will not fall obliquely. When the mold is opened, the transmission thread 1102 of the connecting rod 704 and the sleeve 1101 rotate in the opposite direction, so that the connecting rope 1105 is in a loose state. Under the action of the three springs 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 driving rod 905 will make the bending rod 904 and The connecting rod 903 is rotated to move the blank that has just been punched to prevent the blank from being clamped at the blanking trough 8, to ensure that the blank falls smoothly from the blanking trough 8, and then continue to raise the punch 2 and When the upper die fixes the plate 3, the matching block 701 is separated from the limiting block 705. Since the edge of the limiting block 705 is chamfered, it is convenient to continue to draw the sheet when the matching block 701 and the limiting block 705 are just separated. When the machine is pulled, when the next limit notch is encountered, the limit block 705 is inserted into the limit notch under the action of the first spring 703. At this time, the next stamping can be carried out, and the reciprocation can be realized through the mold. The process of punching and blanking circular saw blades.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a circular saw blade continuous stamping forming device which characterized in that: the die comprises an upper die base (1), a male die (2), an upper die fixing plate (3), a female die (4) and a lower die base (5) which are sequentially installed from top to bottom, wherein a blanking groove (8) is formed between the female die (4) and the lower die base (5), guide plates (6) are arranged on two sides of the top end of the female die (4), a lifting structure (7) is installed between the upper die fixing plate (3), the female die (4) and the lower die base (5) and is close to the guide plates (6), and the lifting structure (7) is located on one side of the blanking groove (8);

lifting structure (7) are including reservation groove (702) and connecting rod (704), inside in die (4) is seted up in reservation groove (702), and reservation groove (702) are located one side of charging chute (8), connecting rod (704) are located the inside of reservation groove (702), the top of connecting rod (704) is provided with stopper (705), and the lower surface of punch plate (3) just is located to weld with stopper (705) corresponding department and has cooperation piece (701), fixed slot (706) have been seted up to the top of die holder (5) and the bottom that is located connecting rod (704), the inside of fixed slot (706) is provided with first spring (703), and first spring (703) contacts with the bottom of connecting rod (704).

2. A circular saw blade continuous press-forming apparatus as claimed in claim 1, wherein: the top of the preformed groove (702) is provided with a matching groove, the shape of the matching groove is matched with the limiting block (705) and the matching block (701), and the depth of the matching groove is larger than the thickness of the limiting block (705).

3. A circular saw blade continuous press-forming apparatus as claimed in claim 2, wherein: the utility model discloses a material stirring device, including die (4), cavity (901), connecting rod (903) and curved bar (904), the inside of die (4) just is located and is provided with between charging chute (8) and preformed groove (702) and dials material structure (9), dial material structure (9) including placing chamber (901), place chamber (901) and set up between charging chute (8) and preformed groove (702), and charging chute (8), place chamber (901) and preformed groove (702) and be linked together, the inside of placing chamber (901) is provided with rotating pin (902), connecting rod (903) and curved bar (904), rotating pin (902) erect the inside of placing chamber (901), and rotating pin (902) rotate with connecting rod (903) and be connected, and connecting rod (903) and curved bar (904) are as an organic whole, the centre of connecting rod (704) is provided with driving lever (905), and the one end of driving lever (905) is connected with curved bar (904), and the inside cover of the other end of driving lever (905) is equipped with second spring (906).

4. A circular saw blade continuous press-molding apparatus as claimed in claim 3, wherein: one end of the second spring (906) is positioned in the shifting rod (905), the other end of the second spring (906) is in contact with the preformed groove (702), and a chamfer angle is formed at the communication position of the placing cavity (901) and the preformed groove (702).

5. A circular saw blade continuous press-forming apparatus as claimed in claim 2, wherein: the utility model discloses a die, including die (4), fixed disk (1001), spacing ring (1005), rotating ring (1005), and rotating ring (1005) rotate with fixed disk (1001) and be connected, the surface of fixed disk (1001) is provided with a plurality of bracing piece (1003), and all is connected with third spring (1004) between rotating ring (1005) and every bracing piece (1003), and all is provided with between rotating ring (1005) and every bracing piece (1003), bearing structure (10) including fixed disk (1001), fixed disk (1001) set up in the lower extreme of charging chute (8) through the screw thread, the surface of fixed disk (1001) is provided with spacing ring (1002), install rotating ring (1005) between fixed disk (1001) and three spacing ring (1002).

6. A circular saw blade continuous press-forming apparatus as claimed in claim 5, wherein: one end of the supporting rod (1003) is provided with a pin shaft, the supporting rod (1003) is connected with the pin shaft in a rotating mode, a limiting pin shaft is welded in the middle, located in the supporting rod (1003), of the surface of the fixing disc (1001), and the other end of the supporting rod (1003) is connected with the third spring (1004).

7. A circular saw blade continuous press-forming apparatus as claimed in claim 6, wherein: be provided with control structure (11) between the lower extreme of elevation structure (7) and bearing structure (10), control structure (11) include sleeve (1101), sleeve (1101) set up in the lower extreme of connecting rod (704), and the lower extreme of connecting rod (704) is provided with transmission screw thread (1102), the lower extreme of connecting rod (704) is connected with sleeve (1101) through transmission screw thread (1102), the bottom threaded connection of preformed groove (702) has fender ring (1103), and keeps off ring (1103) and be located the below of sleeve (1101), the marginal weld of fixed disk (1001) has guide ring (1104), the lateral wall weld of swivel ring (1005) has set knot (1104), the outer face of cylinder of sleeve (1101) has twined connection rope (1105), and connection rope (1105) run through the inside of guide ring (1105) and be connected with set knot (1106).

8. A circular saw blade continuous press-forming apparatus as claimed in claim 6, wherein: the end of the connecting rope (1105) is tied with the rotating ring (1005), and the connecting rope (1105) is tangent with the edge of the rotating ring (1005).

9. A circular saw blade continuous press-molding apparatus as claimed in claim 1 or 2, wherein: guide columns and guide sleeves are arranged at four corners of the upper die base (1) and the upper die fixing plate (3), four corners of the male die (2) are connected with the guide columns in a sliding mode, a die handle is arranged in the middle of the male die (2) and penetrates through the upper die base (1), the middle of the bottom end of the male die (2) is aligned with a blanking groove (8) of the female die (4), and the female die (4) and the lower die base (5) are fixed through bolts.

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