Automatic metal plate indentation stamping die module of feeding

Abstract

The present application relates to the technical field of punch die, in particular to a kind of metal plate indentation punch die module of automatic material feeding, including machine case, the machine case top is fixedly installed with punch rack, the lower part of the punch rack is fixedly installed with lower outer die, the upper outer die is slidably installed on the punch rack upright column, the punch rack top is fixedly installed with punch hydraulic cylinder, and the telescopic rod of the punch hydraulic cylinder is connected with the upper outer die;It also includes the lower inner die and the upper inner die of the installation groove of the lower outer die and the upper outer die respectively assembled;The present application utilizes hydraulic linkage synchronous control to act on multiple double-acting hydraulic cylinders, and through connecting pipe and hose, hydraulic oil is synchronously delivered to the rod cavity of each double-acting hydraulic cylinder, piston rod is retracted, so that the locking of lower inner die and upper inner die locking port is automatically released, without manual disassembly bolt or buckle, the automatic unlocking and quick replacement of die inner die are realized, and the operating efficiency and safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping die, in particular to a metal plate indentation stamping die module with automatic feeding. BACKGROUND

[0002] The stamping die is an indispensable key process equipment in cold stamping processing, and is widely used in the manufacturing fields of automobile, electronics, household appliances, etc. At room temperature, the die is driven by a press to apply pressure to metal or non-metal materials, so that plastic deformation or separation occurs, thereby obtaining parts with desired shape and size. With the continuous improvement of industrial automation level, the metal plate indentation stamping die module with automatic feeding has emerged as the times require. Such a module is usually composed of upper and lower dies, a guide mechanism, a stamping power device and an automatic feeding system. The metal strip is continuously fed into the module below by the conveying mechanism, and the upper die returns after completing indentation or stamping forming, while the conveying mechanism feeds and realizes the cycle operation.

[0003] However, the existing metal plate indentation stamping die module with automatic feeding still has some defects in actual application. First, during the die replacement process, especially when disassembling the inner die of the upper die, the upper die is installed at a high position and is usually made of all metal, so the overall weight is large. It is difficult for the operator to stably control during disassembly or installation, and the inner die is prone to falling due to imbalance, which not only may damage the die or equipment, but also has safety hazards. Second, in the feeding link, the metal strip is prone to sagging during long-distance conveying, which affects the positioning accuracy and may cause the strip to slip off the conveying track, resulting in equipment jamming, damage or shutdown. Therefore, there is an urgent need for a metal plate indentation stamping die module with automatic feeding to overcome the above-mentioned defects. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a metal plate indentation stamping die module with automatic feeding.

[0005] Technical solution: a kind of metal plate indentation stamping die module of automatic feed, including machine case and stamping frame, the machine case is the assembly matrix of module, the stamping frame is fixedly installed on the top of machine case, the lower outer die is fixedly installed on the lower part of stamping frame, the upper outer die is slidably installed on the column of stamping frame, the stamping hydraulic cylinder is fixedly installed on the top of stamping frame, and the telescopic rod of stamping hydraulic cylinder is connected with upper outer die;It also includes lower inner die and upper inner die, the installation groove is set in the corresponding position of the middle part of the stamping surface of lower outer die and upper outer die, and the lower inner die and upper inner die are respectively assembled in the installation groove of lower outer die and upper outer die, locking port is set in the two sides of lower inner die and upper inner die, double-acting hydraulic cylinder is fixedly installed on the two sides of lower outer die and upper outer die, the piston rod of double-acting hydraulic cylinder is used to lock the locking port of lower inner die and upper inner die, the no-rod cavity of double-acting hydraulic cylinder is connected with connecting pipe one, the rod cavity of double-acting hydraulic cylinder is connected with connecting pipe two, the hydraulic tank is fixedly assembled in the machine case, the piston plate is slidably connected in the hydraulic tank by guide rod, the piston plate separates the hydraulic tank into two piston cavities, the piston cavity of hydraulic tank is filled with hydraulic oil, the lower piston cavity of hydraulic tank is sequentially connected with each connecting pipe one by hose one, the upper piston cavity of hydraulic tank is sequentially connected with each connecting pipe two by hose two, cylinder one is fixedly installed in the machine case, and the telescopic rod of cylinder one is connected with the rear of machine case and piston plate by sealing penetration;The feeding mechanism for conveying metal plate is arranged on one side of the machine case, and the discharge guide plate is fixedly connected to the side, away from the feeding mechanism, of lower outer die.

[0006] Further, the feeding mechanism includes a mounting plate fixedly installed on one side of the machine case, a drive roller rotatably connected to the mounting plate, the drive roller being used to assemble the wound metal plate, a gear one fixedly installed on one end of the drive roller, a mounting seat fixedly connected to the mounting plate, a motor fixedly installed on the mounting seat, a gear two fixedly installed on the output shaft of the motor, and the gear one and the gear two being meshed with each other.

[0007] Further, the top block is slidably installed in the bottom of the installation groove of the lower outer die, the top block is flush with the bottom surface of the installation groove of the lower outer die, the top rod is fixedly connected to the bottom of the top block, the top rod penetrates the lower outer die and the machine case, the connecting plate is fixedly connected to the lower end of the top rod, the connecting plate and the guide rod are slidably matched, the convex ring is fixedly connected to the lower end of the guide rod, and the connecting plate is initially higher than the convex ring of the guide rod.

[0008] Further, the positioning rod protruding upward is fixedly arranged at the four corners of the stamping surface of the lower inner die, and the positioning groove is formed in the stamping surface of the upper inner die corresponding to the positioning rod.

[0009] Further, the top of the case is fixedly connected with a fixed seat away from one side of the discharge guide plate, a supporting rail is fixedly installed on the fixed seat, the supporting rail is flush with the stamping surface of the lower inner mold, and the supporting rail is used for supporting and positioning the transmitted metal plate.

[0010] Further, a mounting frame is fixedly connected to the side wall of the case close to the feeding mechanism, a limiting plate is slidably connected to the mounting frame, a second air cylinder is fixedly installed on the mounting frame, the telescopic rod of the second air cylinder is connected with the limiting plate, and the limiting plate is used for neatly limiting the metal plate wound on the driving roller.

[0011] Further, the lower inner mold is provided with a sliding groove on the two sides of the outer wall abutting the upper inner mold, a locking block is slidably connected in the sliding groove of the lower inner mold, and the upper inner mold is provided with a clamping groove matched with the locking block on the two sides of the outer wall abutting the lower inner mold.

[0012] Further, a plurality of casters are rotatably installed on the bottom surface of the lower inner mold abutting the lower outer mold mounting groove, and the casters are used for rolling and transferring the lower inner mold after being disassembled.

[0013] Beneficial effects are:

[0014] 1. The hydraulic linkage is used for synchronously controlling the actions of a plurality of double-acting hydraulic cylinders, hydraulic oil is synchronously delivered to the rod cavities of the double-acting hydraulic cylinders through the connecting pipe and the hose, the piston rod is retracted, the locking of the locking ports of the lower inner mold and the upper inner mold is automatically released, manual disassembly of the bolts or buckles is not needed, the automatic unlocking and quick replacement of the inner mold of the mold are realized, and the operation efficiency and safety are improved.

[0015] 2. The ejection mechanism is arranged, when the first air cylinder continues to drive the piston plate and the guide rod to move upwards, the convex ring on the guide rod pushes the connecting plate and the ejector rod connected with the connecting plate, the ejector block is pushed out of the mounting groove of the lower outer mold upwards, the lower inner mold is stably lifted and separated from the mounting position, and the operator can disassemble the mold with less labor.

[0016] 3. The motor is used for driving the coiled material to be unwound, the metal plate is stably delivered to the lower inner mold through the supporting rail, the rail is flush with the stamping surface, the front end of the plate is effectively prevented from drooping, the limiting plate is driven by the second air cylinder to position the coiled material in the transverse direction, deviation of the coiled material in the unwinding process is prevented, and reliable guarantee is provided for efficient and continuous stamping. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure diagram of the present application.

[0018] Figure 2 It is a connection relationship diagram of the case, the stamping frame, the lower outer mold and the upper outer mold and other components.

[0019] Figure 3The schematic diagram of the separation state of the lower outer mold, the lower inner mold, the upper outer mold and the upper inner mold of the application.

[0020] Figure 4 The sectional view of the lower inner mold, the upper inner mold and the double-acting hydraulic cylinder and other components of the application.

[0021] Figure 5 The connection relationship diagram of the machine case, the driving roller and the supporting guide rail and other components of the application.

[0022] Figure 6 The connection relationship diagram of the specific components of the feeding mechanism of the application.

[0023] Figure 7 The schematic diagram of the cooperation relationship of the lower outer mold, the connecting plate, the ejector rod and the ejector block of the application.

[0024] Figure 8 The connection relationship diagram of the limiting plate, the mounting frame and the cylinder two of the application.

[0025] Figure 9 The connection relationship diagram of the lower inner mold, the upper inner mold and the locking block of the application.

[0026] The component names and serial numbers in the figure: 100: metal plate, 1: machine case, 2: stamping frame, 3: lower outer mold, 31: lower inner mold, 311: positioning rod, 312: caster, 4: upper outer mold, 41: upper inner mold, 411: positioning groove, 5: stamping hydraulic cylinder, 6: double-acting hydraulic cylinder, 61: piston rod, 62: connecting pipe one, 63: connecting pipe two, 7: hydraulic tank, 71: piston plate, 711: guide rod, 72: hose one, 73: hose two, 74: cylinder one, 8: feeding mechanism, 81: mounting plate, 82: driving roller, 821: gear one, 83: mounting seat, 84: motor, 841: gear two, 9: discharging guide plate, 10: connecting plate, 101: ejector rod, 102: ejector block, 103: protruding ring, 11: supporting guide rail, 111: fixing seat, 12: limiting plate, 121: mounting frame, 122: cylinder two, 13: locking block, 131: sliding groove, 132: clamping groove. DETAILED DESCRIPTION

[0027] Although the application can be described with respect to a particular application or industry, those skilled in the art will recognize a broader applicability of the application.

[0028] A metal plate indentation stamping die set for automatically feeding, like Figures 1-4As shown, including organic box 1 and punch frame 2, the box 1 is the assembly matrix of the module, the box 1 top fixedly installed with punch frame 2, punch frame 2 lower part is fixedly installed with lower outer die 3, punch frame 2 column slidingly installed with upper outer die 4, punch frame 2 top fixedly installed with punch hydraulic cylinder 5, the extension rod of punch hydraulic cylinder 5 is connected with upper outer die 4;It also includes lower inner die 31 and upper inner die 41, the lower outer die 3 and upper outer die 4 stamping surface middle part corresponding position are all provided with installation groove, the installation groove of lower outer die 3 and upper outer die 4 is respectively equipped with lower inner die 31 and upper inner die 41, the both sides of lower inner die 31 and upper inner die 41 are all provided with lock port, the both sides of lower outer die 3 and upper outer die 4 are all fixedly installed with double-acting hydraulic cylinder 6, the piston rod 61 of double-acting hydraulic cylinder 6 is used for locking the lock port of lower inner die 31 and upper inner die 41, the rodless cavity of double-acting hydraulic cylinder 6 is communicated with connecting pipe one 62, the rod cavity of double-acting hydraulic cylinder 6 is communicated with connecting pipe two 63, the box 1 is fixedly equipped with hydraulic tank 7, the piston plate 71 is slidably connected in the hydraulic tank 7 through guide rod 711, the piston plate 71 divides the hydraulic tank 7 into two upper and lower piston cavities, the piston cavity of hydraulic tank 7 is filled with hydraulic oil, the lower piston cavity of hydraulic tank 7 is sequentially communicated with each connecting pipe one 62 through hose one 72, the upper piston cavity of hydraulic tank 7 is sequentially communicated with each connecting pipe two 63 through hose two 73, the box 1 is fixedly installed with cylinder one 74, the extension rod of cylinder one 74 is sealedly penetrated through the box 1 rear and connected with piston plate 71;When the lower inner die 31 and upper inner die 41 with different indentation are needed to be replaced, first, the punch hydraulic cylinder 5 is started to drive the upper outer die 4 to drive the upper inner die 41 to descend, so that the upper inner die 41 is pressed on the lower inner die 31 and keeps closed state, then the cylinder one 74 is started to drive the piston plate 71 in the hydraulic tank 7 to move upward, the piston plate 71 forces the hydraulic oil in the upper piston cavity of hydraulic tank 7 to enter the connecting pipe two 63 through the hose two 73, then the hydraulic oil in the connecting pipe two 63 is injected into the rod cavity of the corresponding double-acting hydraulic cylinder 6, thereby the piston rod 61 is pushed to move to the rodless end and retract, at the same time, the retracted piston rod 61 extrudes the hydraulic oil in the rodless cavity, the extruded hydraulic oil flows back to the lower piston cavity of the hydraulic tank 7 through the connecting pipe one 62 and the hose one 72, so that the piston rod 61 of the double-acting hydraulic cylinder 6 exits the corresponding lock port on the lower inner die 31 and upper inner die 41, thereby the locking of the lower inner die 31 and upper inner die 41 is released, then the punch hydraulic cylinder 5 drives the upper outer die 4 to reset upward, at this time, the unlocked upper inner die 41 will be separated from the upper outer die 4 and supported on the lower inner die 31, the lower inner die 31 and upper inner die 41 are taken out and replaced, thereby the safety and efficiency of die disassembly and replacement are improved;The box 1 side is provided with feeding mechanism 8 for conveying metal plate 100, the lower outer die 3 side away from feeding mechanism 8 is fixedly connected with discharge guide plate 9.

[0029] As Figure 2 And Figure 7As shown, the top block 102 is slidingly installed in the bottom of the mounting groove of the lower outer mold 3, the top block 102 is flush with the bottom surface of the mounting groove of the lower outer mold 3, the top block 102 is fixedly connected with the top rod 101 at the bottom, the top rod 101 penetrates the lower outer mold 3 and the case 1, the lower end of the top rod 101 is fixedly connected with the connecting plate 10, the connecting plate 10 is slidingly matched with the guide rod 711, the lower end of the guide rod 711 is fixedly connected with the convex ring 103, the connecting plate 10 is initially higher than the convex ring 103 of the guide rod 711, when the piston plate 71 and the guide rod 711 are driven to move upward by the cylinder 74, the hydraulic oil in the hydraulic tank 7 enters the rodless cavity of the double-acting hydraulic cylinder 6, so that the piston rod 61 of the double-acting hydraulic cylinder 6 retracts and no longer locks the lower inner mold 31 and the upper inner mold 41, as the piston plate 71 and the guide rod 711 continue to move upward, the convex ring 103 on the guide rod 711 will push the connecting plate 10 and the top rod 101 to move upward, the upward moving top rod 101 will push the top block 102 to move upward from the mounting groove of the lower outer mold 3 and push the lower inner mold 31 out of the lower outer mold 3, which facilitates the subsequent disassembly of the pushed out lower inner mold 31.

[0030] As shown in Figure 9 , the lower inner mold 31 is provided with a sliding groove 131 on both sides of the outer wall abutting the upper inner mold 41, and the sliding groove 131 is slidingly connected with a locking block 13, and the upper inner mold 41 is provided with a clamping groove 132 matched with the locking block 13 on both sides of the outer wall abutting the lower inner mold 31, when the lower inner mold 31 and the upper inner mold 41 are disassembled, the operator can combine and splice the lower inner mold 31 and the upper inner mold 41, and slide the locking block 13 on both sides of the lower inner mold 31 to be buckled into the corresponding clamping groove 132 of the upper inner mold 41, and the disassembled lower inner mold 31 and upper inner mold 41 can be stably combined and then transferred uniformly, which ensures the safety of the disassembly process of the lower inner mold 31 and the upper inner mold 41, and facilitates the management of the matched lower inner mold 31 and upper inner mold 41.

[0031] As shown in Figure 4 and Figure 9 , the lower inner mold 31 is rotatably installed with a plurality of casters 312 on the bottom surface of the mounting groove of the lower outer mold 3, the casters 312 are used to roll and transfer the lower inner mold 31 after disassembly, which improves the convenience of overall handling after the combined disassembly of the lower inner mold 31 and the lower outer mold 3.

[0032] When the stamping die set needs to be replaced with a new die for processing different indentations, the stamping hydraulic cylinder 5 is first activated, driving the upper outer die 4 to move downward until the upper inner die 41 and the lower inner die 31 can be butted and pressed together. Then, by pushing the locking blocks 13 in the sliding grooves 131 on both sides of the lower inner die 31, the locking blocks 13 are clamped into the clamping grooves 132 of the upper inner die 41, so that the upper inner die 41 and the lower inner die 31 can be stably butted together. Then, the cylinder one 74 is actuated, and the telescopic rod of the cylinder one 74 drives the piston plate 71 in the hydraulic tank 7 to move upward along the guide rod 711. At this time, the piston plate 71 presses the hydraulic oil in the upper piston cavity upward, causing the hydraulic oil to flow into the hose two 73 and the connecting pipe two 63. The hydraulic oil is sequentially delivered from the connecting pipe two 63 to the rod cavity of each double-acting hydraulic cylinder 6. The pressure of the hydraulic oil drives the piston rod 61 to overcome the resistance and synchronously retract into the cylinder body. The front end of the piston rod 61 is withdrawn from the locking port of the upper inner die 41 and the lower inner die 31. When the mechanical locking of the die is completely released, the stamping hydraulic cylinder 5 drives the upper outer die 4 to move upward, causing the upper outer die 4 to be separated from the unlocked upper inner die 41. At this time, the upper inner die 41 is stably supported on the lower inner die 31. Then, the cylinder one 74 continues to move upward, and the piston plate 71 drives the guide rod 711 to continuously move upward. Then, the convex ring 103 at the lower end of the guide rod 711 contacts the connecting plate 10 and drives the connecting plate 10 to move upward. The connecting plate 10 drives the top rod 101 fixed thereto to move upward. The top rod 101 finally forces the top block 102 embedded in the bottom of the mounting groove of the lower outer die 3 to protrude upward, thereby stably lifting the entire lower inner die 31 (and the upper inner die 41 supported thereon due to closing) away from the mounting groove of the lower outer die 3. The operator can safely remove the separated die set from the rack. The bottom wheels 312 of the lower inner die 31 can be used to easily push and move the lower inner die 31 and the upper inner die 41 as a whole. Finally, the cylinder one 74 drives the piston plate 71 to move downward and reset, causing the connecting plate 10 to drive the top rod 101 and the top block 102 to reset until the top block 102 is reset to be flush with the bottom surface of the lower outer die 3. The process of installing a new die is opposite to the above process. First, the lower inner die 31 is placed into the mounting groove of the lower outer die 3, and the corresponding upper inner die 41 is placed on the lower inner die 31. The stamping hydraulic cylinder 5 drives the upper outer die 4 to press onto the upper inner die 41 until the upper inner die 41 is completely installed into the mounting groove of the upper outer die 4. Then, the cylinder one 74 drives the piston plate 71 to move downward in the opposite direction. The hydraulic oil in the lower piston cavity of the hydraulic tank 7 flows through the hose one 72 and the connecting pipe one 62 into the rodless cavity of the double-acting hydraulic cylinder 6. The hydraulic oil in the rodless cavity drives all the piston rods 61 to extend out again, reinserting into the new corresponding locking ports and being locked. Thus, the lower inner die 31 and the upper inner die 41 are again firmly locked by the piston rods 61 of the double-acting hydraulic cylinder 6, thereby improving the die changing efficiency and reducing the potential safety hazards in traditional die changing.

[0033] As Figure 5 and Figure 6As shown in the drawings, the feeding mechanism 8 includes a mounting plate 81 fixedly installed on one side of the cabinet 1, a driving roller 82 rotatably connected to the mounting plate 81, the driving roller 82 being used for assembling the wound metal plate 100, a gear one 821 fixedly installed at one end of the driving roller 82, a mounting seat 83 fixedly connected to the mounting plate 81, a motor 84 fixedly installed on the mounting seat 83, a gear two 841 fixedly installed on an output shaft of the motor 84, the gear one 821 and the gear two 841 being in meshing relationship, the motor 84 driving the gear one 821 through the meshing of the gear two 841, so that the driving roller 82 rotates and continuously unwinds the metal plate 100 to the lower inner die 31 for indentation stamping.

[0034] As shown in the drawings, Figure 3 and Figure 4 As shown in the drawings, the lower inner die 31 is fixedly provided with a positioning rod 311 protruding upward at four corners of a stamping surface thereof, the upper inner die 41 is provided with a positioning groove 411 at a position corresponding to the positioning rod 311, and the positioning rod 311 cooperates with the positioning groove 411 to enable the upper inner die 41 to be accurately butted and stamped onto the metal plate 100 on the lower inner die 31, thereby improving the indentation forming precision.

[0035] As shown in the drawings, Figure 6 and Figure 8 As shown in the drawings, the cabinet 1 is fixedly connected with a fixing seat 111 at a top portion thereof away from the discharge guide plate 9, the fixing seat 111 is fixedly installed with a supporting guide rail 11, the supporting guide rail 11 is flush with a stamping surface of the lower inner die 31, and the supporting guide rail 11 is used for supporting and positioning the transmitted metal plate 100, so as to avoid sagging of the metal plate 100 before being transmitted to the lower inner die 31 for indentation stamping, thereby guaranteeing the quality of indentation stamping of the metal plate 100.

[0036] As shown in the drawings, Figure 5 and Figure 8 As shown in the drawings, a mounting frame 121 is fixedly connected to a side wall of the cabinet 1 close to the feeding mechanism 8, a limiting plate 12 is slidably connected to the mounting frame 121, a cylinder two 122 is fixedly installed on the mounting frame 121, a telescopic rod of the cylinder two 122 is connected to the limiting plate 12, and the limiting plate 12 is used for neatly limiting the metal plate 100 wound on the driving roller 82, so as to avoid deviation of the driving roller 82 in the process of unwinding the metal plate 100, thereby improving the safety of the feeding mechanism 8 in the feeding process.

[0037] When the punching press is used to punch the metal plate 100, the wound metal plate 100 is first assembled on the driving roller 82 of the feeding mechanism 8, and then the operator pulls out the wound metal plate 100 and drags it through the supporting rail 11 to the lower inner die 31 of the punching frame 2, then the cylinder two 122 is started, the cylinder two 122 drives the limiting plate 12 to move to the position matched with the width of the winding material, and the wound metal plate 100 is transversely positioned, then the motor 84 is started, the motor 84 drives the gear one 821 engaged with the gear two 841 on the output shaft to rotate, so as to drive the driving roller 82 carrying the winding material to rotate at a constant speed, under the limiting action of the limiting plate 12, the metal plate 100 can be continuously and stably unwound and sent out, at this time, the sent metal plate 100 is accurately guided by the supporting rail 11 and transmitted to the predetermined punching position of the lower inner die 31, then the punching hydraulic cylinder 5 is started, the extension rod of the punching hydraulic cylinder 5 drives the upper outer die 4 and the upper inner die 41 to move downward at high speed and stably along the precise column of the punching frame 2, in this process, the positioning rod 311 upwardly protruding at four corners of the lower inner die 31 will first penetrate the metal plate 100 and accurately insert into the corresponding positioning groove 411 of the upper inner die 41, so as to ensure that the upper inner die 41 and the lower inner die 31 can be accurately matched, avoid product scrap or die damage caused by die misalignment, and strong punching force makes the metal plate 100 instantaneously plastically deform between the cavities of the upper and lower inner dies 31, thereby punching the required indentation pattern, after the punching is completed, the punching hydraulic cylinder 5 immediately moves reversely, drives the upper outer die 4 and the upper inner die 41 to quickly reset and rise back and separate from the metal plate 100, and the punched and formed plate relies on the continuous forward pushing of the subsequent metal plate 100 to slide away from the working area along the discharge guide plate 9, so as to complete an automatic punching action.

Claims

1. A metal plate indentation stamping die module for automatic feed, comprising a cabinet (1) with a stamping frame (2) mounted on the top, a lower outer die (3) fixedly arranged at the lower part of the stamping frame (2), an upper outer die (4) slidingly arranged on the stamping frame (2), and a stamping hydraulic cylinder (5) fixedly connected to the top of the stamping frame (2) and used to drive the upper outer die (4); characterized in that a lower inner die (31) and an upper inner die (41) are respectively arranged in the mounting groove of the stamping surface of the lower outer die (3) and the upper outer die (4), double-acting hydraulic cylinders (6) are fixedly arranged on both sides of the lower outer die (3) and the upper outer die (4), the piston rod (61) of the double-acting hydraulic cylinder (6) is used to lock the lower inner die (31) and the upper inner die (41), the rodless cavity and the rod cavity of the double-acting hydraulic cylinder (6) are respectively communicated with a connecting pipe I (62) and a connecting pipe II (63), a hydraulic tank (7) is arranged in the cabinet (1), a piston plate (71) is slidingly connected in the hydraulic tank (7) through a guide rod (711), the piston plate (71) divides the hydraulic tank (7) into two piston cavities, the lower piston cavity of the hydraulic tank (7) is communicated with each connecting pipe I (62) through a hose I (72), the upper piston cavity of the hydraulic tank (7) is communicated with each connecting pipe II (63) through a hose II (73), and a cylinder I (74) is fixedly arranged in the cabinet (1) and connected with the piston plate (71) through the telescopic rod of the cylinder I (74) which penetrates the cabinet (1) and the piston plate (71) in a sealing manner; a feeding mechanism (8) is arranged on one side of the cabinet (1), and a discharging guide plate (9) is fixedly arranged on the side of the lower outer die (3) away from the feeding mechanism (8); a top block (102) is slidingly arranged in the bottom of the mounting groove of the lower outer die (3), the top block (102) is flush with the bottom surface of the mounting groove of the lower outer die (3), a top rod (101) is fixedly arranged on the bottom of the top block (102), the top rod (101) penetrates the lower outer die (3) and the cabinet (1), a connecting plate (10) is fixedly arranged on the lower end of the top rod (101), the connecting plate (10) is slidingly connected with the guide rod (711), and a convex ring (103) is fixedly arranged on the lower end of the guide rod (711).

2. The metal plate indentation press die module of claim 1, wherein, The feeding mechanism (8) comprises a mounting plate (81) fixedly arranged on one side of the cabinet (1), a driving roller (82) rotatably connected to the mounting plate (81), the driving roller (82) is used to assemble a wound metal plate (100), a gear I (821) is fixedly arranged on one end of the driving roller (82), a mounting seat (83) is fixedly arranged on the mounting plate (81), a motor (84) is fixedly arranged on the mounting seat (83), a gear II (841) is fixedly arranged on the output shaft of the motor (84), and the gear I (821) and the gear II (841) are meshed with each other.

3. The metal plate press mark punch press module of claim 2, wherein, Positioning rods (311) upwardly protruding are fixedly arranged at the four corners of the stamping surface of the lower inner die (31), and positioning grooves (411) are arranged at positions corresponding to the positioning rods (311) on the stamping surface of the upper inner die (41).

4. The metal plate press mark punch press module of claim 3, wherein, The machine case (1) top side away from the discharge guide plate (9) is fixedly connected with a fixed seat (111), the fixed seat (111) is fixedly connected with the support guide rail (11) flush with the lower inner die (31) stamping surface.

5. The metal sheet press-marking punch press module of claim 4, wherein, The side wall of the machine case (1) close to the feeding mechanism (8) is fixedly connected with a mounting bracket (121), the mounting bracket (121) is slidably connected with a limiting plate (12), the mounting bracket (121) is fixedly connected with a second air cylinder (122), the telescopic rod of the second air cylinder (122) is connected with the limiting plate (12), and the limiting plate (12) is used for neatly limiting the metal plate (100) wound on the driving roller (82).

6. The metal sheet press-marking punch press module of claim 5, wherein, The outer wall of the lower inner die (31) is provided with a sliding groove (131) on both sides of the abutting upper inner die (41), the sliding groove (131) of the lower inner die (31) is slidably connected with a locking block (13), and the outer wall of the abutting lower inner die (31) is provided with a clamping groove (132) matched with the locking block (13).

7. The metal sheet press-marking punch press module of claim 6, wherein, The lower inner die (31) is rotatably installed with a plurality of casters (312) on the bottom surface of the abutting lower outer die (3) mounting groove.

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