A continuous stamping device for metal stamping

Abstract

The present invention discloses a continuous stamping device for metal stamping, specifically relating to the field of stamping technology, comprising a punch press housing, wherein a plurality of stamping structures are linearly distributed and fixedly installed on the inner surface of the punch press housing, wherein the stamping structure comprises a U-shaped support frame fixedly connected to the inner surface of the punch press housing, an upper mold is provided together with an output end of the electric telescopic rod and the inner surface of the U-shaped support frame, a lower mold is provided on the bottom wall of the inner surface of the U-shaped support frame, and a feeding assembly is provided at the rear of the inner surface of the U-shaped support frame. The continuous stamping device for metal stamping described in the present invention realizes stamping at both ends through the cooperation of the upper mold and the lower mold, simplifies the multiple stamping process of complex shapes, improves forming efficiency, further utilizes the function of the feeding assembly to realize automatic unloading and loading, cooperates with the function of the material conveying belt and the discharge port to realize automatic collection of finished products, optimizes the production process, and improves production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, in particular to a continuous stamping device for metal stamping. Background Art

[0002] In the metalworking industry, stamping equipment is a key component in sheet metal forming. Traditional metal stamping systems primarily rely on presses and dies, applying pressure to plastically deform sheet metal to create parts of desired shape and size. Based on the transmission of mechanical pressure, stamping systems are widely used in industries such as automotive manufacturing, electronics, and aerospace, serving as a crucial metal forming process.

[0003] Chinese patent publication number CN219004226U discloses a stamping device for producing metal accessories, including a bottom box, a mounting frame installed at the upper end of the bottom box, a hydraulic pump installed at the lower end of the mounting frame, a punching head installed at the output end of the hydraulic pump, four side columns installed at the output end of the hydraulic pump, four limiting cylinders installed at the upper end of the bottom box, springs are provided in the four limiting cylinders, a stamping hole is opened in the bottom box, a mold is installed on the inner wall of the stamping hole, the bottom box is provided with an inner cavity, and an atomizer is installed on the inner wall of the bottom box.

[0004] However, existing metal stamping devices have obvious shortcomings. Most devices cannot achieve simultaneous stamping of both ends. Complex-shaped parts require multiple stamping processes, which is cumbersome and inefficient.

[0005] Moreover, the loading and unloading process mostly relies on manual operation, with a low degree of automation, which is prone to efficiency bottlenecks and safety hazards;

[0006] At the same time, single stamping is difficult to meet the forming requirements of complex shapes, which limits the improvement of production efficiency and urgently needs to be improved to adapt to the efficient production requirements of modern manufacturing. Summary of the Invention

[0007] The main purpose of the present invention is to provide a continuous stamping device for metal stamping, which can effectively solve the problems of complicated metal stamping process and low forming efficiency.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A continuous stamping device for metal stamping, comprising a punch press shell, four supporting legs fixedly connected in a rectangular distribution at the lower end of the punch press shell, a console fixedly installed at the left end of the punch press shell, a discharge port provided at the front end of the punch press shell, a material conveying belt fixedly installed on the inner surface of the punch press shell, a plurality of stamping structures fixedly installed in a linear distribution on the inner surface of the punch press shell, the stamping structure comprising a U-shaped support frame fixedly connected to the inner surface of the punch press shell, an electric telescopic rod 1 fixedly installed on the upper end of the U-shaped support frame, an upper mold jointly provided at the output end of the electric telescopic rod 1 and the inner surface of the U-shaped support frame, a lower mold provided on the bottom wall of the inner surface of the U-shaped support frame, and a feeding assembly provided at the rear part of the inner surface of the U-shaped support frame.

[0010] Preferably, a material discharge slope is provided at the front of the inner surface of the U-shaped support frame, and T-shaped slots symmetrically connected to the upper mold are provided at the left and right middle of the inner surface of the U-shaped support frame. Contact sensors are fixedly installed on the top of the inner surfaces of the two T-shaped slots, and electric telescopic rods are fixedly installed on the lower parts of the inner surfaces of the T-shaped slots on both sides, and the output ends of the two electric telescopic rods are fixedly connected to wedge blocks slidably connected to the inner surfaces of the T-shaped slots.

[0011] Preferably, the upper mold includes a connecting seat fixedly connected to an output end of the electric telescopic rod, the lower end of the connecting seat is fixedly connected to a two-stage relay spring, the lower end of the two-stage relay spring is fixedly connected to a forming seat slidably connected to the inner surfaces of the T-shaped grooves on both sides, and the inner surface of the forming seat is slidably connected to the upper mold mounting seat.

[0012] Preferably, the upper end of the upper mold mounting seat is fixedly connected to a limiting rod, the upper end of the limiting rod passes through the forming seat and the connecting seat and extends to the inner cavity of the connecting seat and is slidably connected to the connecting seat and the connecting seat, and a buffer spring is fixedly installed on the upper outer surface of the limiting rod and is fixedly connected to the bottom wall of the inner cavity of the connecting seat, and the upper end of the upper mold mounting seat is fixedly connected to a compression spring fixedly connected to the top wall of the inner cavity of the forming seat.

[0013] Preferably, the lower end of the connecting seat is annularly distributed and fixedly connected with a plurality of two-section pressing rods, and the lower ends of the plurality of two-section pressing rods pass through the upper end of the forming seat, extend to the lower end of the forming seat, and are slidably connected with the inner cavity of the forming seat.

[0014] Preferably, the lower mold includes an L-shaped groove provided on the bottom wall of the inner surface of the U-shaped support frame, an oil chamber 1 is provided at the lower part of the inner surface of the L-shaped groove, an annular block is slidably connected to the vertical part of the inner surface of the L-shaped groove, and a plurality of connecting rods are fixedly connected to the lower end of the annular block in an annular distribution, and the lower ends of the plurality of connecting rods all pass through the L-shaped groove and extend to the oil chamber 1 and are fixedly connected to a piston ring slidably connected to the inner surface of the oil chamber 1, a buffer spring 2 is fixedly connected to the outer side of the adjacent connecting rod in an annular distribution at the lower end of the annular block, a plurality of sliding grooves are provided on the horizontal part of the L-shaped groove, and a plurality of protrusions corresponding to the positions of the sliding grooves are fixedly connected to the inner surface of the annular block in an annular distribution.

[0015] Preferably, the inner surface of the U-shaped support frame is provided with an oil chamber 2 connected to the oil chamber 1, and the inner surface of the oil chamber 2 is slidably connected to a piston rod, the upper end of the piston rod passes through the inner surface of the oil chamber 2 and extends to the upper end of the U-shaped support frame and is fixedly connected to the lower mold mounting seat through a telescopic rod, and the lower end of the lower mold mounting seat and the upper end of the U-shaped support frame are fixedly connected to a reset spring.

[0016] Preferably, the feeding assembly includes a U-shaped frame that is slidably connected to the inner surface of the U-shaped support frame and a lower hopper that is fixedly connected to the rear portion of the inner surface of the U-shaped support frame, the front portion of the inner surface of the U-shaped frame is fixedly connected with a push rod symmetrically on the left and right, the rear portion of the inner surface of the U-shaped frame is fixedly connected with a center disk, the inner surface of the center disk and the inner surface of the U-shaped frame are jointly provided with a discharge assembly that is symmetrically distributed on the left and right, the rear end of the center disk is fixedly connected to a limit strip symmetrically on the left and right, the rear end of the lower hopper is fixedly installed with an electric telescopic rod three, and the output end of the electric telescopic rod three is fixedly connected to the rear portion of the inner surface of the U-shaped frame.

[0017] Preferably, the discharge assembly includes an oil chamber three symmetrically opened on the inner surface of the center disk, and the inner surfaces of the two oil chambers three are slidably connected with locking tongues. The upper end of the U-shaped frame is provided with an oil chamber four located between the two oil chambers three. The oil chamber four and the oil chamber three are jointly provided with a connecting pipe. The bottom wall of the inner surface of the oil chamber four is fixedly connected to a compression spring two, and the upper end of the compression spring two is fixedly connected to a spherical rod slidably connected to the inner surface of the oil chamber four.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention utilizes the driving action of a pair of upper molds by an electric telescopic rod to bring the upper mold and the lower mold closer to each other, thereby punching the plate into a predetermined shape. The cooperation of the upper mold and the lower mold further realizes stamping at both ends, simplifies the multiple stamping process of complex shapes, improves the forming efficiency, further utilizes the function of the feeding assembly to realize automatic unloading and loading, cooperates with the function of the material conveying belt and the discharge port to realize automatic collection of the finished products, optimizes the production process, and improves production efficiency.

[0020] 2. The present invention drives the connecting seat downward through the driving action of a pair of connecting seats of an electric telescopic rod, and drives the forming seat and the upper mold mounting seat to move downward synchronously through the action of a two-stage relay spring until the upper mold mounting seat contacts the raw material. The continuous pressure of the forming seat on the forming seat by the connecting seat causes the forming seat to continue to move downward over the lower part of the upper mold mounting seat and enter the L-shaped groove. The cooperation between the forming seat and the L-shaped groove promotes the forming of the sheet material.

[0021] 3. The present invention further presses the annular block downward after the forming seat is in place through the action of the two-section downward pressure rod set at the lower part of the connecting seat, and the piston ring on the lower side of the annular block causes the piston rod to rise in the second oil chamber, and then the action of the piston rod on the lower die mounting seat drives the lower die mounting seat to be lifted up, and cooperates with the upper die mounting seat to form a secondary stamping, thereby realizing the forming of complex shapes, reducing the multiple stamping processes of complex shapes, simplifying the preparation process, and thus improving production efficiency.

[0022] 4. The present invention utilizes the cooperation of the U-shaped frame arranged on the rear side of the U-shaped support frame and the electric telescopic rod three to realize automatic loading and unloading of raw materials and finished products. Specifically, the electric telescopic rod three is used to drive the U-shaped frame to move forward, and the finished product is pushed into the discharge slope through the push rod, and finally falls into the material conveying belt through the inclined surface of the discharge slope for centralized transportation, thereby realizing automatic unloading; further, the raw material plate in the discharge hopper is fed into the discharge assembly through the discharge assembly arranged in the center disk and the limit bar, and the plate is prompted to enter the predetermined position on the discharge assembly through the action of the electric telescopic rod two and the wedge block on the discharge assembly, thereby realizing automatic loading and unloading, and through automatic loading and unloading and multi-stage stamping, the preparation process is simplified, thereby improving efficiency and realizing continuous stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of the punch housing of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the stamping structure of the present invention;

[0026] Figure 4 Schematic diagram of the cross-sectional structure of the upper mold of the present invention;

[0027] Figure 5 Schematic diagram of the structure of the upper mold of the present invention when viewed from above;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the lower mold of the present invention;

[0029] Figure 7 Schematic diagram of the positional relationship between the protrusion and the chute of the present invention;

[0030] Figure 8 Schematic diagram of the cross-sectional structure of the U-shaped support frame of the present invention;

[0031] Figure 9 It is a structural schematic diagram of the feeding assembly of the present invention;

[0032] Figure 10 Schematic diagram of the cross-sectional structure of the feeding assembly of the present invention;

[0033] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the local structure at point A.

[0034] In the figure: 1. Punch press housing; 2. Control console; 3. Support legs; 4. Discharge port; 5. Punching structure; 51. Electric telescopic rod 1; 52. U-shaped support frame; 521. Unloading slope; 522. T-shaped slot; 523. Contact sensor; 524. Electric telescopic rod 2; 525. Wedge block; 53. Upper die; 531. Connecting seat; 532. Limiting rod; 533. Buffer spring 1; 534. Forming seat; 5341. Second-stage lower pressure rod; 5342. Second-stage relay spring; 535. Compression spring 1; 536. Upper die mounting seat; 54. Lower die; 541. L-shaped slot; 5411. Slide; 542. Ring shaped block; 5421, bump; 543, buffer spring 2; 544, connecting rod; 545, piston ring; 546, oil chamber 1; 547, oil chamber 2; 548, piston rod; 549, lower die mounting seat; 5491, return spring; 55, feeding assembly; 551, U-shaped frame; 552, electric telescopic rod 3; 553, push rod; 554, discharge assembly; 5541, spherical rod; 5542, compression spring 2; 5543, locking tongue; 5544, oil chamber 3; 5545, connecting pipe; 5546, oil chamber 4; 555, lower hopper; 556, limit strip; 557, center disk; 6, material conveying belt. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] Example 1, as Figure 1 、 Figure 2 and Figure 3As shown, a continuous stamping device for metal stamping includes a punch press shell 1, four supporting legs 3 are fixedly connected to the lower end of the punch press shell 1 in a rectangular distribution, a control console 2 is fixedly installed on the left end of the punch press shell 1, a discharge port 4 is opened at the front end of the punch press shell 1, a material conveying belt 6 is fixedly installed on the inner surface of the punch press shell 1, and a plurality of stamping structures 5 are fixedly installed on the inner surface of the punch press shell 1 in a linear distribution. The stamping structure 5 includes a U-shaped support frame 52 fixedly connected to the inner surface of the punch press shell 1, an electric telescopic rod 51 is fixedly installed on the upper end of the U-shaped support frame 52, an upper mold 53 is jointly provided at the output end of the electric telescopic rod 51 and the inner surface of the U-shaped support frame 52, a lower mold 54 is provided on the bottom wall of the inner surface of the U-shaped support frame 52, and a feeding assembly 55 is provided at the rear of the inner surface of the U-shaped support frame 52.

[0037] It should be noted that the above-mentioned console 2 is a control terminal commonly used in existing punching machines, which is internally configured with a PLC controller, a timer and a contactor. It can drive the contactor to operate through the PLC and thereby control the start and stop, forward and reverse operation of other electrical equipment. This structure has been widely used in the prior art. In the present invention, it is only used to realize the function of controlling the operation of electrical equipment, and its internal structure, operating principle, wiring and control method will not be described in detail.

[0038] Furthermore, the electric telescopic rod 51 is a conventional telescopic device for driving the upper mold 53 to move up and down in the U-shaped support frame 52. Its operation and installation methods are conventional technical means in the prior art and will not be elaborated in detail in the present invention.

[0039] During the operation of this embodiment, the electric telescopic rod 51 is used to drive the upper mold 53 to move the upper mold 53 and the lower mold 54 closer to each other, thereby punching the plate into a predetermined shape. The upper mold 53 and the lower mold 54 cooperate to achieve stamping at both ends, simplifying the multiple stamping process of complex shapes and improving the forming efficiency. The feeding component 55 is further used to realize automatic unloading and loading, and the material conveying belt 6 and the discharge port 4 are used to realize automatic collection of finished products, thereby optimizing the production process and improving production efficiency.

[0040] Embodiment 2: Based on embodiment 1, this embodiment drives the connecting seat 531 downward through the driving action of the electric telescopic rod 1 51 on the connecting seat, and drives the forming seat 534 and the upper mold mounting seat 536 to move downward synchronously through the action of the second-stage relay spring 5342 until the upper mold mounting seat 536 contacts the raw material. The continuous pressure of the connecting seat 531 on the forming seat 534 causes the forming seat 534 to continue to move downward over the lower part of the upper mold mounting seat 536 and enter the L-shaped groove 541. The cooperation between the forming seat 534 and the L-shaped groove 541 causes the plate to Forming, and further through the action of the two-section pressing rod 5341 set at the bottom of the connecting seat 531, the annular block 542 is further pressed to move downward after the forming seat 534 is in place, and the piston ring 545 on the lower side of the annular block 542 is used to prompt the piston rod 548 to rise in the oil chamber 2 547, and then the lower die mounting seat 549 is driven to be lifted up by the action of the piston rod 548, and the upper die mounting seat 536 is cooperated to form a secondary stamping to realize the forming of complex shapes, reduce the multiple stamping processes of complex shapes, simplify the preparation process, and thus improve production efficiency.

[0041] Specifically, to achieve the stamping of raw materials, refer to Figure 4 and Figure 5 The upper mold 53 includes a connecting seat 531 fixedly connected to the output end of the electric telescopic rod 51, and the lower end of the connecting seat 531 is fixedly connected to a two-stage relay spring 5342. The lower end of the two-stage relay spring 5342 is fixedly connected to a forming seat 534 that is slidably connected to the inner surfaces of the T-shaped slots 522 on both sides, and the inner surface of the forming seat 534 is slidably connected to the upper mold mounting seat 536.

[0042] Further, in order to realize the formation of the auxiliary material of the cavity with a predetermined shape during the stamping process, see Figure 4 and Figure 5 The upper end of the upper mold mounting seat 536 is fixedly connected to the limiting rod 532, the upper end of the limiting rod 532 passes through the forming seat 534 and the connecting seat 531 and extends to the inner cavity of the connecting seat 531 and is slidably connected to the connecting seat 531 and the connecting seat 531. A buffer spring 533 fixedly connected to the bottom wall of the inner cavity of the connecting seat 531 is fixedly installed on the upper part of the outer surface of the limiting rod 532, and a compression spring 535 fixedly connected to the top wall of the inner cavity of the forming seat 534 is fixedly connected to the upper end of the upper mold mounting seat 536.

[0043] Furthermore, to achieve two-stage stamping and complex shape forming, refer to Figure 5 The lower end of the connecting seat 531 is annularly distributed and fixedly connected with a plurality of two-section pressing rods 5341. The lower ends of the plurality of two-section pressing rods 5341 pass through the upper end of the forming seat 534 and extend to the lower end of the forming seat 534 and are slidably connected to the inner cavity of the forming seat 534.

[0044] The lower mold 54 includes an L-shaped groove 541 provided on the bottom wall of the inner surface of the U-shaped support frame 52, an oil chamber 546 is provided at the lower part of the inner surface of the L-shaped groove 541, and an annular block 542 is slidably connected to the vertical part of the inner surface of the L-shaped groove 541. A plurality of connecting rods 544 are fixedly connected to the lower end of the annular block 542 in an annular distribution. The lower ends of the plurality of connecting rods 544 all pass through the L-shaped groove 541 and extend to the oil chamber 546 and are fixedly connected to a piston ring 545 slidably connected to the inner surface of the oil chamber 546. A buffer spring 2 543 sleeved on the outer side of the adjacent connecting rod 544 is fixedly connected to the lower end of the annular block 542 in an annular distribution. A plurality of sliding grooves 5411 are provided on the horizontal part of the L-shaped groove 541, and a plurality of protrusions 5421 corresponding to the positions of the sliding grooves 5411 are fixedly connected to the inner surface of the annular block 542 in an annular distribution.

[0045] Further, in order to cooperate with the upper die 53 to realize the two-stage stamping, refer to Figure 6 and Figure 7 The inner surface of the U-shaped support frame 52 is provided with an oil chamber 2 547 which is connected to the oil chamber 1 546. The inner surface of the oil chamber 2 547 is slidably connected with a piston rod 548. The upper end of the piston rod 548 passes through the inner surface of the oil chamber 2 547 and extends to the upper end of the U-shaped support frame 52 and is fixedly connected to the lower mold mounting seat 549 through a telescopic rod. The lower end of the lower mold mounting seat 549 and the upper end of the U-shaped support frame 52 are fixedly connected with a reset spring 5491.

[0046] In summary, the connecting seat 531 moves downward under the action of the electric telescopic rod 1 51, and the forming seat 534 is driven downward by the action of the second-stage downward pressure rod 5341. Since the upper mold mounting seat 536 is not under pressure at this time, it will move downward with the forming seat 534 until the upper mold mounting seat 536 contacts the plate. At this time, the bottom of the plate is supported by the lower mold mounting seat 549, and the upper mold mounting seat 536 stops moving due to the upward force, and gradually compresses the compression spring 1 535, so that the upper mold mounting seat 536 retracts into the forming seat 534.

[0047] The forming seat 534 continues to move into the L-shaped groove 541 under the action of the connecting seat 531 until it contacts the bottom wall of the horizontal portion of the annular block 542, completing a stage of stamping. At this time, the plate is concave, and its inner wall contacts the inner arc surface of the horizontal portion of the annular block 542.

[0048] During this process, the annular block 542 presses the piston ring 545 downward through the connecting rod 544, and compresses the hydraulic oil in the oil chamber 1 546 to move toward the oil chamber 2 547. At this time, the oil level in the oil chamber 2 547 increases, prompting the piston rod 548 to move upward and compressing the telescopic rod to its maximum stroke.

[0049] The electric telescopic rod 1 51 continues to move downward. At this time, the forming seat 534 cannot move further downward due to the obstruction of the L-shaped groove 541. The second-stage relay spring 5342 is compressed, and the connecting seat 531 drives the second-stage downward pressure rod 5341 to move downward, and continues to press the annular block 542 to move downward along the vertical part of the L-shaped groove 541. During this process, the piston ring 545 presses the hydraulic oil in the oil chamber 1 546 into the oil chamber 2 547. At this time, the telescopic rod has no margin. When the piston rod 548 continues to rise, it will push the lower die mounting seat 549 to rise, and use the specific mold installed on the lower die mounting seat 549 to cooperate with the upper die mounting seat 536 to perform a second punching on the concave plate to form it into the predetermined shape.

[0050] When the electric telescopic rod 1 51 drives the connecting seat 531 to reset, the annular block 542 will rise under the action of the buffer spring 2 543, and the lower mold mounting seat 549 will be driven to reset through the reset spring 5491. When the annular block 542 is reset to the predetermined position, the finished product will be driven to rise to a position flush with the inner wall of the U-shaped support frame 52 through the protrusion 5421, realizing automatic demoulding.

[0051] Example 3. Based on Example 2, this example utilizes the cooperation of the U-shaped frame 551 arranged on the rear side of the U-shaped support frame 52 and the electric telescopic rod three 552 to realize automatic loading and unloading of raw materials and finished products. Specifically, the electric telescopic rod three 552 is used to drive the U-shaped frame 551 to move forward, and the finished product is pushed into the discharge slope 521 through the push rod 553, and finally falls into the material conveying belt 6 through the inclined surface of the discharge slope 521 for centralized transportation, thereby realizing automatic unloading; further, through the discharge component 554 and the limit bar 556 arranged in the center plate 557, the raw material plate in the discharge hopper 555 is fed into the discharge component 554, and the plate is prompted to enter the predetermined position on the discharge component 554 through the action of the electric telescopic rod two 524 and the wedge block 525 on the discharge component 554, thereby realizing automatic loading and unloading and multi-stage stamping, simplifying the preparation process, thereby improving efficiency and realizing continuous stamping.

[0052] Specifically, to achieve loading and unloading after stamping is completed, refer to Figure 8 A material discharge slope 521 is provided at the front of the inner surface of the U-shaped support frame 52, and T-shaped slots 522 symmetrically connected to the upper mold 53 are provided at the left and right middle of the inner surface of the U-shaped support frame 52. Contact sensors 523 are fixedly installed on the top of the inner surfaces of the two T-shaped slots 522, and electric telescopic rods 524 are fixedly installed on the lower part of the inner surfaces of the T-shaped slots 522 on both sides. The output ends of the two electric telescopic rods 524 are fixedly connected to wedge blocks 525 that are slidably connected to the inner surfaces of the T-shaped slots 522.

[0053] When the connecting seat 531 is at the uppermost position, it will contact the contact sensor 523. At this time, the contact sensor 523 will send a signal to the console 2, and the console 2 will drive the electric telescopic rod 2 524 to extend, thereby realizing the wedge block 525 sliding out.

[0054] Further, in order to realize the material being pushed out from between the upper die 53 and the lower die 54 after the stamping is completed, refer to Figure 8 、 Figure 9 and Figure 10 The feeding assembly 55 includes a U-shaped frame 551 that is slidingly connected to the inner surface of the U-shaped support frame 52 and a lower hopper 555 that is fixedly connected to the rear part of the inner surface of the U-shaped support frame 52. The front part of the inner surface of the U-shaped frame 551 is symmetrically fixed with a push rod 553, and the rear part of the inner surface of the U-shaped frame 551 is fixedly connected with a center disk 557. The inner surface of the center disk 557 and the inner surface of the U-shaped frame 551 are jointly provided with a discharge assembly 554 that is symmetrically distributed on the left and right. The rear end of the center disk 557 is symmetrically fixed with a limit bar 556. The rear end of the lower hopper 555 is fixedly installed with an electric telescopic rod three 552, and the output end of the electric telescopic rod three 552 is fixedly connected to the rear part of the inner surface of the U-shaped frame 551.

[0055] When the electric telescopic rod 1 51 rises to a certain height, the control console 2 controls the electric telescopic rod 3 552 to retract, thereby driving the U-shaped frame 551 to move forward, and further pushes the finished product from the discharge slope 521 into the material conveyor belt 6 through the push rod 553 installed at the front of the U-shaped frame 551;

[0056] Synchronously, the plates in the lower hopper 555 will fall into the center disk 557 and be blocked by the discharge assembly 554. During the forward movement of the U-shaped frame 551, it will move forward synchronously with the center disk 557. When the discharge assembly 554 moves to the position of the wedge block 525, the upper mold 53 has not completely reached the top, and there is a stroke difference. Until the upper mold 53 completely reaches the upper side, the wedge block 525 approaches the discharge assembly 554 under the action of the electric telescopic rod 524 and drives the discharge assembly 554 to move and send the material into the upper part of the lower mold 54. At this time, the limit bar 556 is at the bottom of the lower hopper 555 to prevent the material from slipping.

[0057] Further, in order to realize that after the stamping is completed, the raw material plate is fed into the upper part of the lower mold 54, see Figure 10 and Figure 11The discharge assembly 554 includes an oil chamber three 5544 symmetrically opened on the inner surface of the center disk 557, and the inner surfaces of the two oil chambers three 5544 are slidably connected with lock tongues 5543. The upper end of the U-shaped frame 551 between the two oil chambers three 5544 is provided with an oil chamber four 5546. The oil chamber four 5546 and the oil chamber three 5544 are jointly provided with a connecting pipe 5545. The bottom wall of the inner surface of the oil chamber four 5546 is fixedly connected to the compression spring two 5542, and the upper end of the compression spring two 5542 is fixedly connected to the spherical rod 5541 slidably connected to the inner surface of the oil chamber four 5546.

[0058] In the initial state, the locking tongue 5543 is outside the oil chamber 3 5544, that is, within the inner surface of the center disk 557. At this time, the plate in the center disk 557 is blocked by the locking tongue 5543 and cannot move further downward.

[0059] When the wedge block 525 extends, it presses the spherical rod 5541 downward. At this time, the hydraulic oil in the fourth oil chamber 5546 enters the third oil chamber 5544 through the connecting pipe 5545, and causes the locking tongue 5543 to slide into the third oil chamber 5544, thereby releasing the restriction on the raw material sheet inside the center plate 557. The sheet moves downward along the center plate 557 and falls on the upper side of the lower mold 54.

[0060] When the spherical rod 5541 is separated from the wedge block 525, the spherical rod 5541 is reset under the action of the second compression spring 5542, and the lock tongue 5543 is reset.

[0061] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous stamping device for metal stamping, comprising a punch housing, four support legs fixedly connected to the lower end of the punch housing in a rectangular arrangement, a console fixedly mounted on the left end of the punch housing, a discharge port formed at the front end of the punch housing, and a material conveying belt fixedly mounted on the inner surface of the punch housing, characterized in that: The inner surface of the punch shell is linearly distributed and fixedly installed with a plurality of punching structures, and the punching structure includes a U-shaped support frame fixedly connected to the inner surface of the punch shell, an electric telescopic rod 1 is fixedly installed on the upper end of the U-shaped support frame, an upper mold is provided together with the output end of the electric telescopic rod 1 and the inner surface of the U-shaped support frame, a lower mold is provided on the bottom wall of the inner surface of the U-shaped support frame, and a feeding assembly is provided at the rear of the inner surface of the U-shaped support frame; The lower mold includes an L-shaped groove provided on the bottom wall of the inner surface of the U-shaped support frame, an oil chamber 1 is provided at the lower part of the inner surface of the L-shaped groove, an annular block is slidably connected to the vertical part of the inner surface of the L-shaped groove, a plurality of connecting rods are fixedly connected to the lower end of the annular block in an annular distribution, the lower ends of the plurality of connecting rods all pass through the L-shaped groove and extend to the oil chamber 1 and are fixedly connected to a piston ring slidably connected to the inner surface of the oil chamber 1, a buffer spring 2 is fixedly connected to the outer side of the adjacent connecting rod in an annular distribution at the lower end of the annular block, a plurality of sliding grooves are provided on the horizontal part of the L-shaped groove, and a plurality of protrusions corresponding to the positions of the sliding grooves are fixedly connected to the inner surface of the annular block in an annular distribution; The middle portion of the inner surface of the U-shaped support frame is symmetrically provided with a T-shaped groove slidably connected to the upper mold, the upper mold includes a connecting seat fixedly connected to an output end of the electric telescopic rod, the lower end of the connecting seat is fixedly connected to a two-stage relay spring, the lower end of the two-stage relay spring is fixedly connected to a forming seat slidably connected to the inner surfaces of the T-shaped grooves on both sides, and the inner surface of the forming seat is slidably connected to the upper mold mounting seat; The inner surface of the U-shaped support frame is provided with an oil chamber 2 which is in communication with the oil chamber 1. The inner surface of the oil chamber 2 is slidably connected to a piston rod. The upper end of the piston rod passes through the inner surface of the oil chamber 2 and extends to the upper end of the U-shaped support frame and is fixedly connected to a lower die mounting seat via a telescopic rod. A return spring is fixedly connected to the lower end of the lower die mounting seat and the upper end of the U-shaped support frame. The feeding assembly includes a U-shaped frame slidably connected to the inner surface of the U-shaped support frame, a center plate is fixedly connected to the rear of the inner surface of the U-shaped frame, and the inner surface of the center plate and the inner surface of the U-shaped frame are jointly provided with discharge assemblies symmetrically distributed on the left and right; The discharge assembly includes an oil chamber three symmetrically opened on the inner surface of the center disk, and the inner surfaces of the two oil chambers three are slidably connected with locking tongues. The upper end of the U-shaped frame is provided with an oil chamber four located between the two oil chambers three. The oil chamber four and the oil chamber three are jointly provided with a connecting pipe. The bottom wall of the inner surface of the oil chamber four is fixedly connected to a compression spring two, and the upper end of the compression spring two is fixedly connected to a spherical rod slidably connected to the inner surface of the oil chamber four.

2. A continuous stamping device for metal stamping according to claim 1, characterized in that: A material discharge slope is provided at the front of the inner surface of the U-shaped support frame, contact sensors are fixedly installed on the top of the inner surfaces of the two T-shaped slots, and two electric telescopic rods are fixedly installed on the lower part of the inner surfaces of the T-shaped slots on both sides, and the output ends of the two electric telescopic rods are fixedly connected to wedge blocks that are slidably connected to the inner surfaces of the T-shaped slots.

3. The continuous stamping device for metal stamping according to claim 1, characterized in that: The upper end of the upper mold mounting seat is fixedly connected to a limiting rod, the upper end of the limiting rod passes through the forming seat and the connecting seat, extends to the inner cavity of the connecting seat, and is slidably connected to the connecting seat and the connecting seat. A buffer spring is fixedly installed on the upper outer surface of the limiting rod and is fixedly connected to the bottom wall of the inner cavity of the connecting seat. The upper end of the upper mold mounting seat is fixedly connected to a compression spring that is fixedly connected to the top wall of the inner cavity of the forming seat.

4. A continuous stamping device for metal stamping according to claim 3, characterized in that: The lower end of the connecting seat is annularly distributed and fixedly connected with a plurality of two-section pressing rods, and the lower ends of the plurality of two-section pressing rods all pass through the upper end of the forming seat, extend to the lower end of the forming seat, and are slidably connected with the inner cavity of the forming seat.

5. The continuous stamping device for metal stamping according to claim 1, characterized in that: The feeding assembly also includes a lower hopper fixedly connected to the rear part of the inner surface of the U-shaped support frame, a push rod is fixedly connected to the front part of the inner surface of the U-shaped frame symmetrically on the left and right, the rear end of the center disk is fixedly connected to a limit bar symmetrically on the left and right, and an electric telescopic rod three is fixedly installed at the rear end of the lower hopper, and the output end of the electric telescopic rod three is fixedly connected to the rear part of the inner surface of the U-shaped frame.

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