CN216065133U - Punch forming mechanism - Google Patents

Abstract

The utility model discloses a punch forming mechanism, which comprises a material pulling machine positioned at the rear end of punching equipment, a carrier film material feeding coil and an aluminum tape material feeding coil which are arranged at the front end of the punching equipment, wherein an aluminum tape on the aluminum tape material feeding coil is positioned above a carrier film, the carrier film and the aluminum tape penetrate through the punching equipment under the driving of the material pulling machine, the punching equipment comprises an upper die and a lower die which are arranged on a base, a corresponding punching bulge part, a leveling press part and an appearance cutting press part are sequentially arranged between the upper die and the lower die, and the aluminum tape sequentially passes through the punching bulge part, the leveling press part and the appearance cutting press part from the upper end surface of the lower die; and a lifting device is arranged in the lower die, the carrier film passes through the bottom of the lower die and is led to the lifting device through a guide device, and an inlet of the material pulling machine is provided with an aluminum strip waste guide plate and a finished product guide plate. The utility model ensures that the length directions of the drawn lines of the punched aluminum sheet and the carrier film are consistent, and improves the quality of the finally formed aluminum sheet.

Description

Punch forming mechanism

Technical Field

The utility model relates to the field of punching, in particular to a punch forming mechanism.

Background

A plurality of aluminum sheets are required to be attached to the carrier film of the finished aluminum tape, each aluminum sheet is required to be processed into a rectangle in advance before attachment, and the middle part of each aluminum sheet is provided with a bulge. At present, the aluminum strip is punched to be rectangular and has a convex aluminum sheet, a plurality of aluminum sheets are collected and then are attached by using a chip mounter, and the mode is low in efficiency. In order to solve the problem, equipment with an automatic punching forming device comes along, for example, the chinese utility model patent with the publication 2021-02-09 and the publication number CN 212494866U discloses a cross-shaped punching forming device, the aluminum tape can be directly attached to a carrier film after being punched by cross-shaped feeding of the structure, and the production efficiency is high. After the aluminum strip and the carrier film are fed in a cross shape and stamped, the aluminum sheet can be attached to the carrier film, and the aluminum sheet is provided with the wire-drawing-shaped grains, so that the grains on the aluminum sheet are inconsistent with the length direction (trend) of the carrier film after the cross-shaped stamping, and the stamped aluminum sheet is poor in performance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a punch forming mechanism for ensuring the punching quality of an aluminum sheet.

In order to achieve the above purposes, the utility model adopts the technical scheme that: a stamping forming mechanism comprises a carrier film material feeding roll, an aluminum tape material feeding roll, a stamping device and a material pulling machine, wherein the material pulling machine is positioned at the rear end of the stamping device, the carrier film material feeding roll and the aluminum tape material feeding roll are arranged at the front end of the stamping device, an aluminum tape on the aluminum tape material feeding roll is positioned above a carrier film, the carrier film on the carrier film material feeding roll and the aluminum tape on the aluminum tape material feeding roll penetrate through the stamping device under the driving of the material pulling machine, the stamping device comprises an upper die and a lower die which are arranged on a base, a corresponding stamping bulge, a leveling press-fit portion and an appearance cutting press-fit portion are sequentially arranged between the upper die and the lower die, and the aluminum tape sequentially passes through the stamping bulge, the leveling press-fit portion and the appearance cutting press-fit portion from the upper end face of the lower die; be provided with elevating gear in the bed die, the carrier membrane is followed the bottom process of bed die to lead to elevating gear through guider, work as the appearance cuts the pressfitting during operation of portion, elevating gear presses the carrier membrane to the aluminium strip, the entry of drawing the material machine is provided with aluminium strip waste material deflector and finished product material deflector.

The stamping forming mechanism has the advantages that the carrier film feeding coil and the aluminum strip feeding coil are powered by the material pulling machine, the carrier film and the aluminum strip are pulled to enter from the same end of the stamping device and sequentially pass through the stamping bulge part, the leveling press part and the appearance cutting press part, stamping the aluminum sheet to form a bulge, leveling the bulge, cutting the aluminum sheet from the aluminum strip and pressing the aluminum sheet on the carrier film, when the punching bulge and the leveling lamination are carried out, the aluminum strip and the carrier film are separated, before the aluminum strip and the carrier film enter the appearance cutting lamination part, the aluminum strip and the carrier film are tightly attached by a guide device to carry out punching on the aluminum sheet and laminate the aluminum sheet on the carrier film, finally, the aluminum strip waste and the finished product material are discharged from the same end of the punching equipment, thus, the drawn lines of the stamped aluminum sheet are consistent with the length direction (running direction) of the carrier film, the quality of the finally formed aluminum sheet is ensured, and the aluminum sheet meets the requirements of customers.

Preferably, the lifting device comprises a lifting platform and a lifting cylinder, the lifting cylinder is arranged in the lower die, the end part of a piston rod of the lifting cylinder is connected with the lifting platform, and the lifting cylinder drives the lifting platform to move back and forth in the direction close to or far away from the appearance cutting pressing part; the two ends of the lifting platform are arranged in an arc shape. Before the appearance of last mould and bed die cuts the pressfitting portion and cuts the pressfitting, lift cylinder drives lift platform and rises for the carrier membrane is close to the aluminium strip, does benefit to the die-cut of aluminum sheet and the pressfitting of carrier membrane.

Preferably, guider includes guide roll, lower guide roll at least, it flushes with lift platform to go up the guide roll, the guide roll is located the below of last guide roll down, the top of guide roll is provided with the type membrane stripping off device who is used for peeling off type membrane on the carrier film down, stripping off device includes the material roller of peeling off of taking the power supply. Through the cooperation setting of upper and lower guide roll, with carrier membrane direction elevating gear, peeling means is used for peeling off from the type membrane on the carrier membrane, does benefit to the pressfitting of aluminum sheet and carrier membrane.

Preferably, the both sides of bed die up end are provided with a plurality of guide posts, first limiting plate, the second limiting plate that correspond, a plurality of guide posts are located punching press bellying department, the top diameter of guide post is greater than the lower part diameter, forms the guide way, the aluminium strip passes through from the guide way, first limiting plate is located flattening pressfitting portion department, the second limiting plate is located appearance cutting pressfitting portion department. The guide posts are arranged to ensure that the aluminum strips positioned on the stamping bulge parts are accurate in position; the first limiting plate is arranged to ensure that the aluminum strips positioned at the leveling and pressing part are accurate in position; the setting of second limiting plate is used for guaranteeing to be located the appearance and cuts the position accuracy of the aluminium strip of pressfitting portion.

Preferably, the base is provided with a pressing plate for pressing the lower die, and the pressing plate is positioned at two diagonal lines of the lower die. The two pressing plates at the diagonal line can prevent the lower die from moving due to too violent stamping when stamping, and then the stamping accuracy is ensured.

Preferably, the material pulling machine comprises an aluminum strip waste material pulling roller and a finished product material pulling roller; the aluminum strip waste material drawing roller and the finished product material drawing roller respectively comprise a driving roller and a driven roller, gears which are meshed with each other are arranged at two ends of the driving roller and the driven roller which correspond to each group, and each group of driving rollers is driven by a servo motor. The aluminum strip waste material and the finished product material are respectively driven by a servo motor to pull the materials, so that conditions are provided for the lifting device to drive the carrier film to lift.

Preferably, an aluminum strip waste pulling roller adjusting device and a finished product pulling roller adjusting device are arranged in the pulling machine, and the aluminum strip waste pulling roller adjusting device and the finished product pulling roller adjusting device can respectively enable the driven roller corresponding to the aluminum strip waste pulling roller adjusting device to be close to or far away from the driving roller. The aluminum strip waste pulling roller adjusting device and the finished product pulling roller adjusting device are used for adjusting the clamping force of the aluminum strip waste pulling roller and the clamping force of the finished product pulling roller.

Preferably, the aluminum strip waste pulling roller adjusting device comprises a first air cylinder, a connecting seat, a pressing plate, two first connecting plates and a first rotating shaft, one of the aluminum strip waste material pulling rollers is arranged at the top of a shell of the material pulling machine, the first air cylinder is rotatably arranged on the shell, a telescopic shaft of the first air cylinder extends into the shell, and the shell is provided with a first through hole for the flexible shaft of the first cylinder to move, the end part of the flexible shaft of the first cylinder is rotationally connected with the connecting seat, the connecting seat is fixed on the pressing plate, an elastic piece is arranged between the two ends of the pressing plate and the shell, one end of the elastic piece is fixed on the shell, the other end of the elastic piece is tightly propped against the pressing plate, two ends of the pressing plate are respectively and fixedly connected with the two first connecting plates, the aluminum strip waste pulling roller and the first rotating shaft are rotatably arranged between the two first connecting plates, and one end of the first rotating shaft is rotatably arranged on the shell.

Preferably, finished product material drawing roller adjusting device includes second cylinder, connecting rod, two second connecting plates, second pivot, the second cylinder is fixed on the casing, the telescopic link of second cylinder stretches into in the casing and is connected fixedly with the cylinder adapter sleeve, the cylinder adapter sleeve is established on the connecting rod and has between the two to take place relative clearance, the driven voller and the second pivot of connecting rod, finished product material drawing roller all rotate to set up on two second connecting plates, the one end of second pivot is rotated and is set up on the casing, it has the tensioning rod to go back fixed cover on the connecting rod, the tensioning rod stretches out the casing, and stretches out the cover is equipped with the spring on the tensioning rod of casing, the outer end on the tensioning rod is provided with the stop cap that the restriction spring moved outward, be provided with the waist type hole that supplies the tensioning rod activity on the casing.

Preferably, the outlet of the drawing machine is also provided with an aluminum strip waste guide plate and a finished product guide plate, wherein one of the aluminum strip waste guide plate and the finished product guide plate is provided with a height limiting plate, the other one of the aluminum strip waste guide plate and the finished product guide plate is provided with a width limiting plate, and the height limiting plates ensure that the aluminum strip and the carrier film are not easy to arch up and deviate from the track; the width limiting plate ensures that the aluminum strip and the carrier film are not easy to shift left and right, and ensures that the aluminum strip and the carrier film can move straight.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic structural view of the punching apparatus of the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a perspective view of the material drawing machine in the present embodiment;

fig. 5 is a perspective view of the internal structure of the material drawing machine in this embodiment;

FIG. 6 is a perspective view of the adjusting device of the scrap pulling roll for aluminum strip in the embodiment;

FIG. 7 is a perspective view of the adjusting device of the scrap pulling roll for aluminum strip in the embodiment;

fig. 8 is a perspective view of the adjusting device for the pulling roll of the product material in the present embodiment.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to the attached drawings 1-3, a stamping forming mechanism comprises a carrier film feeding roll 1, an aluminum tape feeding roll 2, a punching device 3 and a pulling machine 4, wherein the pulling machine 4 is positioned at the rear end of the punching device 3, the carrier film feeding roll 1 and the aluminum tape feeding roll 2 are arranged at the front end of the punching device 3, an aluminum tape 7 on the aluminum tape feeding roll 2 is positioned above a carrier film 6, the carrier film 6 on the carrier film 6 feeding roll 1 and the aluminum tape 7 on the aluminum tape feeding roll 2 penetrate through the punching device 3 under the driving of the pulling machine 4, the punching device 3 comprises an upper die 32 and a lower die 33 which are arranged on a base 31, corresponding stamping convex parts, leveling press parts and appearance cutting press parts are sequentially arranged between the upper die 32 and the lower die 33, and the aluminum tape 7 sequentially passes through the stamping convex parts, the leveling press parts and the appearance cutting press parts from the upper end face of the lower die 33; the lower die 33 is internally provided with a lifting device 5, the carrier film 6 passes through the bottom of the lower die 33 and is led to the lifting device 5 through a guide device 10, when the appearance cutting press-fit part works, the lifting device 5 presses the carrier film 6 to the aluminum strip 7, and the inlet of the material pulling machine 4 is provided with an aluminum strip waste guide plate 8 and a finished material guide plate 9.

The both sides of the up end of lower mould 33 are provided with a plurality of guide posts 12 that correspond, first limiting plate 13, second limiting plate 14, and a plurality of guide posts 12 are located punching press bellying department, and the top diameter of guide post 12 is greater than the lower part diameter, forms guide way 15, and aluminium strip 7 passes through from guide way 15, and first limiting plate 13 is located flattening pressfitting portion department, and second limiting plate 14 is located appearance cutting pressfitting portion department.

The carrier film feeding coil 1 and the aluminum strip feeding coil 2 are powered by a pulling machine, the carrier film 6 and the aluminum strip 7 are pulled to enter from the same end of the punching equipment 3 and sequentially pass through a punching bulge part, a leveling press part and an appearance cutting press part, a bulge punching cutter is arranged on an upper mold 32 of the punching bulge part, and presses the bulge punching cutter to the aluminum strip 7 limited by the guide column 12 so as to punch a bulge on the aluminum strip 7; the upper die 32 of the leveling and pressing part is provided with a leveling and pressing cutter, and the leveling and pressing cutter presses the aluminum strip 7 limited by the first limiting plate 13 to level the bulge on the aluminum strip 7; the cutter on the last mould 32 of the pressfitting portion is cut to the appearance is pressed to and is provided with on the last mould 32 of the pressfitting portion is cut by guide post 12 appearance respectively and cuts the pressfitting cutter, cuts the pressfitting cutter and presses to aluminium strip and the carrier film by spacing of second limiting plate 14, cuts the aluminum sheet and the pressfitting on carrier film 6, wherein, protruding punching press cutter, flattening pressfitting cutter, cut the pressfitting cutter and set up into a plurality ofly respectively.

When carrying out punching press arch and flattening pressfitting, aluminium strip 7 and carrier membrane 6 separation, before getting into the appearance and cutting the nip portion, utilize guider to hug closely both to carry out die-cut and with the aluminum sheet pressfitting on carrier membrane 6, final aluminium strip waste material and finished product material are discharged from the same one end of die-cut equipment 3, guarantee like this that the wire drawing line of the aluminum sheet of punching press is unanimous with length direction (traffic direction) of carrier membrane 6, the quality of final fashioned aluminum sheet has been guaranteed, and accord with customer's requirement.

As shown in fig. 3, the guiding device 10 at least includes an upper guiding roller 101 and a lower guiding roller 102, the upper guiding roller 101 is flush with the lifting platform 51, the lower guiding roller 102 is located below the upper guiding roller 101, a release film peeling device for peeling the release film on the carrier film 6 is arranged above the lower guiding roller 102, the peeling device includes a stripping roller 11, and the stripping roller 11 is provided with a driving motor. The carrier film 6 is guided to the lifting device 5 through the matching arrangement of the upper and lower guide rollers 101 and 102, and the stripping roller 11 is used for stripping the release film on the carrier film 6, so that the pressing fit of the aluminum sheet and the carrier film 6 is facilitated. As shown in fig. 3, the lifting device 5 includes a lifting platform 51 and a lifting cylinder 52, the lifting cylinder 52 is disposed in the lower mold 33, a piston rod end of the lifting cylinder 52 is connected to the lifting platform 51, and the lifting cylinder 52 drives the lifting platform 51 to move back and forth in a direction close to or far away from the shape cutting press-fit portion; the lifting platform 51 is provided at both ends thereof in a circular arc shape. Before the shape cutting and laminating part of the upper die 32 and the lower die 33 is cut and laminated, the lifting cylinder drives the lifting platform to ascend, so that the carrier film 6 is close to the aluminum strip 7.

In addition, the base 31 is provided with a pressing plate 16 which presses the lower mold 33, and the pressing plate 16 is located at two diagonal lines of the lower mold 33. When the upper die 32 is pressed down, the lower die 33 is driven to move, and then the stamping precision is affected.

As shown in fig. 4-8, since the carrier film 6 in this embodiment is driven by the lifting device 5 to approach the aluminum strip 7 in the stamping process, the operation of the carrier film 6 and the aluminum strip 7 need to be controlled by two different motors, and therefore, the material pulling machine 4 in this embodiment includes an aluminum strip scrap material pulling roller 41 and a finished material pulling roller 42; the aluminum strip waste pulling roll 41 and the finished product pulling roll 42 both comprise a driving roll 43 and a driven roll 44, gears 45 which are meshed with each other are arranged at two ends of each group of the corresponding driving roll 43 and the corresponding driven roll 44, and each group of the driving rolls 43 is driven by a servo motor 46, so that conditions are provided for the lifting device 5 to drive the carrier film 6 to lift.

As shown in fig. 5, an aluminum strip scrap pulling roller adjusting device 17 and a finished product pulling roller adjusting device 18 are arranged in the pulling machine 4, the aluminum strip scrap pulling roller adjusting device 17 and the finished product pulling roller adjusting device 18 can respectively enable the driven roller 44 corresponding to the aluminum strip scrap pulling roller adjusting device to be close to or far away from the driving roller 43, the moving range is small, and the movement of the driven roller 44 is controlled to be about 3-5 mm.

As shown in fig. 6 and 7, the aluminum strip scrap drawing roller adjusting device 17 includes a first air cylinder 171, a connecting seat 172, a pressing plate 173, two first connecting plates 174, and a first rotating shaft 175, wherein one aluminum strip scrap drawing roller 41 is disposed on the top of the housing 47 of the drawing machine 4, two sides of the cylinder body of the first air cylinder 171 are rotatably disposed on the housing 47 to provide conditions for the rotation of the first connecting plates 174, the telescopic shaft of the first air cylinder 171 extends into the housing 47, the housing 47 is provided with a first through hole 176 for the telescopic shaft of the first air cylinder 171 to move, the end of the telescopic shaft of the first air cylinder 171 is rotatably connected with the connecting seat 172, the connecting seat 172 is fixed on the pressing plate 173, an elastic member 177 is disposed between two ends of the pressing plate 173 and the housing 47, one end of the elastic member 177 is fixed on the housing 47, the other end is abutted against the pressing plate 173, two ends of the pressing plate 173 are respectively fixedly connected with the two first connecting plates 174, the aluminum strip scrap pulling roller 41 and the first rotating shaft 175 are rotatably disposed between the two first link plates 174, and one end of the first rotating shaft 175 is rotatably disposed on the housing 47. Normally to drawing material of aluminium strip 7, the piston rod of first cylinder 171 stretches out, and connecting seat 172 descends, and clamp plate 173 descends thereupon, and first connecting plate 174 rotates downwards around first pivot 175, and aluminium strip waste material draws driven roll 44 of material roller 41 and is close to drive roll 43, and simultaneously, its operation is driven by corresponding servo motor 46 to drive roll 43 and driven roll 44 of aluminium strip waste material drawing roller 41, and the material is drawn to drive roll 43 and the driven roll 44 of waste material drawing roller 41 realization. When the driving roller 43 and the driven roller 44 need to be loosened, the first air cylinder 171 drives the connecting seat 172 to ascend, then the first air cylinder 171 and the connecting seat 172 on the pressing plate 173 rotate relatively and drive the pressing plate 173 to move upwards, the first connecting plates 174 on two sides are driven to rotate around the first rotating shaft 175, meanwhile, the cylinder body of the first air cylinder 171 and the shell 47 rotate, the piston rod of the first air cylinder 171 moves in the first through hole 176, the driven roller 44 is far away from the driving roller 43, and the elastic piece 177 presses the pressing plate 173 tightly, so that the tension of the driven roller 44 is ensured.

As shown in fig. 4, 5, and 8, the finished material pulling roller adjusting device 18 includes a second cylinder 181, a connecting rod 182, two second connecting plates 183, and a second rotating shaft 184, the second cylinder 181 is fixed on the housing 47, an expansion link of the second cylinder 181 extends into the housing 47 and is connected and fixed with a cylinder connecting sleeve 185, the cylinder connecting sleeve 185 is sleeved on the connecting rod 182, and a relative movement gap is formed between the two connecting plates 183, the connecting rod 182, the driven roller 44 of the finished material pulling roller 42, and the second rotating shaft 184 are rotatably disposed on the two second connecting plates 183, one end of the second rotating shaft 184 is rotatably disposed on the housing 47, a tensioning rod 188 is further fixedly sleeved on the connecting rod 182, and the tensioning rod 188 extends out of the housing 47, a spring 186 is sleeved on a tension rod 188 extending out of the housing 47, a limiting cap (not shown) for limiting the outward movement of the spring 186 is arranged at the outer end of the tension rod 188, and a waist-shaped hole 187 for allowing the tension rod 188 to move is arranged on the housing 47. When the driving roller 43 and the driven roller 44 of the finished material pulling roller 42 need to be separated, the second cylinder 181 drives the telescopic rod thereof to extend out, the connecting rod 182 is driven to move towards the inside of the shell 47 through the cylinder connecting sleeve 185, then the second connecting plates 183 on two sides are driven to rotate towards the inside of the shell 47 around the second rotating shaft 184, and then the connecting rod 182 moves in the cylinder connecting sleeve 185, meanwhile, the spring 186 on the tension rod plays a tensioning role, because the tension rod 186 is arranged in the waist hole 187 in a penetrating manner, when the second connecting plates 183 rotate, the tension rod 188 can be driven to move in the waist hole 187.

In addition, in order to ensure that the aluminum strip and the carrier film run linearly, the outlet of the drawing machine 4 in this embodiment is also provided with an aluminum strip waste guide plate 8 and a finished product guide plate 9, wherein one of the aluminum strip waste guide plate 8 and the finished product guide plate 9 is provided with a height limiting plate 19, and the other of the aluminum strip waste guide plate 8 and the finished product guide plate 9 is provided with a width limiting plate 20.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a stamping forming mechanism, includes that carrier membrane pay-off material is rolled up (1), aluminium strip pay-off and is rolled up (2), die-cut equipment (3), draws material machine (4), draw material machine (4) to be located the rear end of die-cut equipment (3), its characterized in that: the carrier film feeding roll (1) and the aluminum tape feeding roll (2) are arranged at the front end of a punching device (3), an aluminum tape (7) on the aluminum tape feeding roll (2) is positioned above a carrier film (6), the carrier film (6) on the carrier film (6) feeding roll (1) and the aluminum tape (7) on the aluminum tape feeding roll (2) penetrate through the punching device (3) under the driving of a material pulling machine (4), the punching device (3) comprises an upper die (32) and a lower die (33) which are arranged on a base (31), corresponding punching bulges, leveling pressing parts and appearance cutting pressing parts are sequentially arranged between the upper die (32) and the lower die (33), and the aluminum tape (7) sequentially passes through the punching bulges, the leveling pressing parts and the appearance cutting pressing parts from the upper end face of the lower die (33); be provided with elevating gear (5) in bed die (33), carrier film (6) are followed the bottom process of bed die (33) to lead to elevating gear (5) through guider (10), work as the appearance cuts the nip during operation, elevating gear (5) press carrier film (6) to aluminium strip (7), the entry of drawing material machine (4) is provided with aluminium strip waste material deflector (8) and finished product material deflector (9).

2. The punch forming mechanism according to claim 1, wherein: the lifting device (5) comprises a lifting platform (51) and a lifting cylinder (52), the lifting cylinder (52) is arranged in the lower die (33), the end part of a piston rod of the lifting cylinder (52) is connected with the lifting platform (51), and the lifting cylinder (52) drives the lifting platform (51) to move back and forth in the direction close to or far away from the appearance cutting pressing part.

3. The punch forming mechanism according to claim 2, wherein: the guiding device (10) at least comprises an upper guiding roller (101) and a lower guiding roller (102), the upper guiding roller (101) is flush with the lifting platform (51), the lower guiding roller (102) is located below the upper guiding roller (101), a release film stripping device used for stripping a release film on the carrier film (6) is arranged above the lower guiding roller (102), and the stripping device comprises a stripping roller (11) with a power source.

4. The punch forming mechanism according to claim 1, wherein: the both sides of bed die (33) up end are provided with guide post (12), first limiting plate (13), second limiting plate (14) of a plurality of correspondences, a plurality of guide posts (12) are located punching press bellying department, the top diameter of guide post (12) is greater than the lower part diameter, forms guide way (15), guide way (15) are followed in aluminium strip (7) and are passed through, first limiting plate (13) are located flattening pressfitting portion department, second limiting plate (14) are located the appearance and cut pressfitting portion department.

5. The punch forming mechanism according to claim 1, wherein: the base (31) is provided with a pressing plate (16) for pressing the lower die (33), and the pressing plate (16) is positioned at two diagonal lines of the lower die (33).

6. The punch forming mechanism according to claim 1, wherein: the material pulling machine (4) comprises an aluminum strip waste material pulling roller (41) and a finished product material pulling roller (42); the aluminum strip waste material pulling roller (41) and the finished product material pulling roller (42) respectively comprise a driving roller (43) and a driven roller (44), gears (45) which are meshed with each other are arranged at two ends of the driving roller (43) and the driven roller (44) corresponding to each group, and each group of driving rollers (43) is driven by a servo motor (46).

7. The punch forming mechanism according to claim 6, wherein: an aluminum strip waste pulling roller adjusting device (17) and a finished product pulling roller adjusting device (18) are arranged in the pulling machine (4), and the aluminum strip waste pulling roller adjusting device (17) and the finished product pulling roller adjusting device (18) can respectively enable the driven roller (44) corresponding to the aluminum strip waste pulling roller adjusting device to be close to or far away from the driving roller (43).

8. The punch forming mechanism according to claim 7, wherein: the aluminum strip waste material pulling roller adjusting device (17) comprises a first air cylinder (171), a connecting seat (172), a pressing plate (173), two first connecting plates (174) and a first rotating shaft (175), wherein one aluminum strip waste material pulling roller (41) is arranged at the top of a shell (47) of a material pulling machine (4), the first air cylinder (171) is rotatably arranged on the shell (47), a telescopic shaft of the first air cylinder (171) extends into the shell (47), a first through hole (176) for the telescopic shaft of the first air cylinder (171) to move is formed in the shell (47), the end part of the telescopic shaft of the first air cylinder (171) is rotatably connected with the connecting seat (172), the connecting seat (172) is fixed on the pressing plate (173), an elastic piece (177) is arranged between the two ends of the pressing plate (173) and the shell (47), one end of the elastic piece (177) is fixed on the shell (47), the other end of the aluminum strip waste material pulling roller is tightly abutted against a pressing plate (173), two ends of the pressing plate (173) are fixedly connected with the two first connecting plates (174) respectively, the aluminum strip waste material pulling roller (41) and a first rotating shaft (175) are rotatably arranged between the two first connecting plates (174), and one end of the first rotating shaft (175) is rotatably arranged on the shell (47).

9. The punch forming mechanism according to claim 7, wherein: finished product material drawing roller adjusting device (18) includes second cylinder (181), connecting rod (182), two second connecting plates (183), second pivot (184), second cylinder (181) is fixed on casing (47), the telescopic link of second cylinder (181) stretches into in casing (47) and is connected fixedly with cylinder adapter sleeve (185), cylinder adapter sleeve (185) cover is established on connecting rod (182) and has the relative movable gap that can take place between the two, driven voller (44) and second pivot (184) of connecting rod (182), finished product material drawing roller (42) all rotate and set up on two second connecting plates (183), the one end of second pivot (184) is rotated and is set up on casing (47), it has tensioning rod (188) to go back fixed cover on connecting rod (182), tensioning rod (188) stretches out casing (47), and stretches out the tensioning rod (188) of casing (47) goes up the cover and is equipped with spring (186), the outer end on the tensioning rod (188) is provided with a limiting cap for limiting the outward movement of the spring (186), and the shell (47) is provided with a waist-shaped hole (187) for the movement of the tensioning rod (188).

10. The punch forming mechanism according to claim 1, wherein: the outlet of the material pulling machine (4) is also provided with an aluminum strip waste guide plate (8) and a finished product guide plate (9), wherein one of the aluminum strip waste guide plate (8) and the finished product guide plate (9) is provided with a height limiting plate (19), and the other one of the aluminum strip waste guide plate (8) and the finished product guide plate (9) is provided with a width limiting plate (20).

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