CN215618547U

CN215618547U - Die stamping mechanism

Info

Publication number: CN215618547U
Application number: CN202120372808.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2022-01-25
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a die stamping mechanism which comprises a lower die component, an upper die component, a first driving piece and a second driving piece, wherein the lower die component comprises a female die, the upper die component comprises a pit punching male die, the first driving piece and the second driving piece are used for respectively driving the lower die component and the upper die component to move, so that a material can be clamped between the female die and the pit punching male die, the second driving piece drives the pit punching male die to move towards the direction close to the female die so as to realize pit punching when the material is clamped and compacted, the phenomena of wrinkling, curling and the like of the edge of a pit punched by the material can be avoided, a punching male die and a third driving piece are further arranged on an upper die base, the third driving piece is used for driving the punching male die to move towards the direction close to the female die after the pit punching is carried out, so as to realize punching when the material is clamped and compacted, and the hole punched by the material is not easy to deform, The shape of the hole is regular, which is beneficial to improving the precision and quality of the subsequent battery packaging.

Description

Die stamping mechanism

Technical Field

The utility model relates to the technical field of battery preparation, in particular to a die stamping mechanism.

Background

When the battery is prepared, the battery core needs to be placed in the aluminum plastic film which is subjected to the pit overshoot and the punching, and then the flexible package battery packaging is completed. The accuracy of punching the pit and the hole can directly influence the packaging quality of the battery, and further directly influence the quality of a battery finished product.

The inventor of this application discovers in long-term research and development, the hole and the hole of present plastic-aluminum membrane generally go on through punching die utensil and cut-out press respectively, two moulds generally adopt a set of driving piece simultaneous driving in order to go on to dash the hole and punch a hole the operation, and because the area of hole is great, when punching the hole, the plastic-aluminum membrane easily produces and removes, thereby make the hole that the cut-out press that inserts the plastic-aluminum membrane simultaneously formed be non-round hole, the precision is relatively poor, the phenomenon such as corrugate, the fish tail line, the corner collapse, turn-up also easily appears in the edge of the hole of punching press out, influence follow-up encapsulation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a die stamping mechanism, which aims to solve the technical problems that in the prior art, the punching precision of an aluminum-plastic film is poor, and punched pits are easy to wrinkle, curl and the like.

In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a die mechanism, including:

the lower die assembly comprises a lower die base and a female die arranged on the lower die base, and the female die is used for bearing materials;

the upper die assembly comprises an upper die base and a pit punching male die arranged on the upper die base;

the first driving piece is used for driving the lower die assembly to move towards a direction close to or away from the upper die assembly, the second driving piece is used for driving the upper die assembly to move towards a direction close to or away from the lower die assembly, the material can be clamped between the female die and the pit punching male die, and the second driving piece is further used for driving the pit punching male die to move towards a direction close to the female die, so that pit punching is realized on the material;

the punching die comprises a die, an upper die seat and a lower die seat, wherein the upper die seat is provided with a punching male die and a third driving piece, and the third driving piece is used for driving the punching male die to move towards the direction close to the female die after a pit is punched so as to realize punching on the material.

In a specific embodiment, the pit punching male die is movably connected with the upper die base, so that the second driving piece can drive the pit punching male die to move relative to the upper die base to approach or separate from the lower die assembly.

In a specific embodiment, the second driving member is connected with a pressing plate, the pressing plate and the pit punching male die are arranged at an interval, and the second driving member can drive the pressing plate to move towards the direction close to the pit punching male die, so that the pressing plate can act on the pit punching male die to enable the pit punching male die to move towards the direction close to the lower die assembly.

In a specific embodiment, the upper die assembly further includes a first elastic member, and the first elastic member is disposed between the backing plate and the upper die base, and is configured to act on the backing plate after the acting force of the pressing plate on the backing plate is cancelled, so that the backing plate moves in a direction away from the lower die assembly.

In a specific embodiment, the upper die assembly further comprises a stripper, the stripper is arranged on one side of the upper die base close to the lower die assembly, the stripper is arranged close to the pit-punching male die and used for being matched with the pit-punching male die to unload, and a buffer strip is arranged on one side of the stripper close to the lower die assembly.

In a specific embodiment, the third driving member includes an air cylinder and a piston rod, the air cylinder is disposed on a side of the upper die holder away from the lower die assembly, the piston rod is disposed through the upper die holder, and the punching male die is disposed through the stripper plate and connected to the piston rod.

In a specific embodiment, the discharge plate is formed with a through hole, the punching male die is disposed through the through hole, and the upper die assembly further includes a second elastic member disposed in the through hole and sleeved outside the punching male die for buffering the movement of the punching male die.

In a specific embodiment, be provided with the groove of stepping down on the die, the groove of stepping down corresponds the terrace die setting of punching a hole, is used for cooperating the terrace die that punches a hole realizes punching a hole, the groove of stepping down includes first groove section and second groove section, first groove section is located the second groove section is close to one side of last mold component, the width of first groove section is less than the width of second groove section.

In a specific embodiment, the lower die holder is formed with an air passage, and the air passage is communicated with the abdicating groove and used for discharging punching waste.

In a specific embodiment, the die mechanism further comprises a guide post disposed through the upper die base and the lower die base.

The die stamping mechanism comprises a lower die component, an upper die component, a first driving piece and a second driving piece, wherein the lower die component comprises a lower die base and a female die arranged on the lower die base, the upper die component comprises an upper die base and a pit punching male die arranged on the upper die base, the first driving piece and the second driving piece are used for respectively driving the lower die component and the upper die component to move, so that a material can be clamped between the female die and the pit punching male die, the second driving piece is further used for driving the pit punching male die to move towards the direction close to the female die so as to realize pit punching when the material is clamped and compressed, the phenomena of wrinkling, edge curling and the like of the edge of a pit punched by the material can be avoided, a punching male die and a third driving piece are further arranged on the upper die base, the third driving piece is used for driving the punching male die to move towards the direction close to the female die after pit punching, so as to realize punching when the material is clamped and compressed, the holes punched by the material are not easy to deform, the shapes of the holes are regular, and the precision and the quality of subsequent battery packaging are favorably improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts,

wherein:

FIG. 1 is a schematic front view of an embodiment of a die mechanism of the present invention;

FIG. 2 is a schematic top view of a material in an embodiment of the die mechanism of the present invention;

FIG. 3 is a schematic front view of a partial structure of an embodiment of a die mechanism according to the present invention;

FIG. 4 is a schematic sectional view in the A-A direction of the partial structure of the die mechanism in FIG. 3;

FIG. 5 is a schematic side view of a partial structure of an embodiment of a die mechanism of the present invention;

FIG. 6 is a schematic sectional view of a partial structure of the die mechanism in FIG. 5 taken along the direction B-B;

FIG. 7 is an enlarged partial schematic view of the die mechanism of FIG. 6;

fig. 8 is a schematic front view of a partial structure in an embodiment of the die mechanism of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The terms "first" and "second" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. While the term "and/or" is merely one type of association that describes an associated object, it means that there may be three types of relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Referring to fig. 1 to 7, an embodiment of the die mechanism 10 of the present invention includes a lower die assembly 100, an upper die assembly 200, a first driving element 300, and a second driving element 400, wherein the lower die assembly 100 includes a lower die base 110 and a female die 120 disposed on the lower die base 110, the female die 120 is used for carrying a material 20, the upper die assembly 200 includes an upper die base 210 and a pit punch 220 disposed on the upper die base 210, the first driving element 300 and the second driving element 400, the first driving element 300 is used for driving the lower die assembly 100 to move towards or away from the upper die assembly 200, the second driving element 400 is used for driving the upper die assembly 200 to move towards or away from the lower die assembly 100, the material 20 can be clamped between the female die 120 and the pit punch 220, and the clamped height of the material 20 can be the same as the height of the material 20 introduced into the material 20, so that the material 20 can be smoothly pulled, the second driving element 400 is further used for driving the pit punch 220 to move towards the female die 120, with realize towards the hole when material 20 is compressed tightly by the centre gripping at the material, form hole 201, can avoid the material to appear wrinkling by the edge of the hole 201 that punches out, phenomenons such as curling, turn-up, and further be provided with punch a hole terrace die 500 and third driving piece 600 on the upper die base 210, third driving piece 600 is used for driving punch a hole terrace die 500 to the direction motion that is close to die 120 behind towards the hole, in order to realize punching a hole when the material is compressed tightly by the centre gripping, form hole 202, can make material 20 difficult production deformation by the hole 202 that punches out, the shape of hole 202 is regular, be favorable to improving the precision and the quality of follow-up battery encapsulation.

In this embodiment, the hole 202 may be a circular hole. In other embodiments, the punched hole may also be a square hole, a triangular hole, or the like, which is not limited herein.

In this embodiment, the first and

second drivers

300 and 400 may be servo motors. In other embodiments, the first driving element 300 and the second driving element 400 may also be other driving devices such as an air cylinder, and are not limited herein.

In this embodiment, the material 20 may be an aluminum-plastic film for encapsulating the battery cell.

In the present embodiment, the hole punching punch 220 is movably connected to the upper die holder 210, so that the second driving member 400 can drive the hole punching punch 220 to move relative to the upper die holder 210 to approach or separate from the lower die assembly 100.

In this embodiment, the upper die assembly 200 further includes a plurality of force transfer rods 230, the force transfer rods 230 are disposed through the upper die holder 210 and can slide relative to the upper die holder 210, the pit punching male die 220 is connected to the force transfer rods 230, and the second driving member 400 can act on the force transfer rods 230 to drive the pit punching male die 220 to move towards or away from the lower die assembly 100 through the force transfer rods 230, so as to achieve the pit punching function.

In this embodiment, the piercing punch 220 and the dowel 230 may be connected by a connecting plate 231, wherein the connecting plate 231 may be fixedly connected to the dowel 230 by screws (not shown). In other embodiments, the connection plate 231 may be fixedly connected to the dowel bar 230 by other means, such as adhesion, snap, etc., without limitation.

In this embodiment, the number of the dowel bars 230 may be multiple, which can make the movement process of the pit-punching male die 220 more stable.

Referring to fig. 8, in the present embodiment, a pressing plate 410 may be connected to the second driving member 400, the pressing plate 410 is spaced apart from the pit punching male die 220, and the second driving member 400 can drive the pressing plate 410 to move towards the pit punching male die 220, so that the pressing plate 410 can act on the pit punching male die 220 to move the pit punching male die 220 towards the lower die assembly 100.

In this embodiment, the upper die assembly 200 may further include a backing plate 240, the backing plate 240 is connected to the plurality of force transmission rods 230, the pressing plate 410 is disposed at a distance from the backing plate 240, and the second driving member 400 may drive the pressing plate 410 to move in a direction close to the backing plate 240, so that the pressing plate 410 abuts against the backing plate 240, and may further act on the backing plate 240 to move the force transmission rods 230 in a direction close to the lower die assembly 100, so as to further facilitate driving control of the force transmission rods 230 by the second driving member 400.

In this embodiment, the upper die assembly 200 may further include a first elastic member (not shown in the drawings), which is disposed between the pad 240 and the upper die base 210, and is used for acting on the pad 240 after the force applied to the pad 240 by the pressing plate 410 is removed, so that the pad 240 moves away from the lower die assembly 100, thereby resetting the pad 240.

In this embodiment, the upper die assembly 200 further includes a discharging plate 250, the discharging plate 250 is disposed on one side of the upper die holder 210 close to the lower die assembly 100, and the discharging plate 250 is disposed close to the pit punching male die 220 for cooperating with the pit punching male die 220 to discharge, so that the pad 240 drives the pit punching male die 220 to move in a direction away from the lower die assembly 100 for resetting, the material 20 that has completed pit punching cannot move in a direction away from the lower die assembly 100 along with the pit punching male die 220, and further the material 20 is more stable in the die punching process.

In this embodiment, a side of the discharging plate 250 close to the lower die assembly may be provided with a buffer strip 251, and the buffer strip 251 may be made of a soft material such as polyurethane, which can increase the pressing force of the discharging plate 250 on the material 20, reduce the flow of the material 20, and effectively improve the wrinkling and the like of the material 20.

Referring to fig. 6 and 7, in the present embodiment, the third driving member 600 may include an air cylinder 610 and a piston rod 620, the air cylinder 610 is disposed on a side of the upper die holder 210 away from the lower die assembly 100, the piston rod 620 is disposed through the upper die holder 210, and the punching male die 500 is disposed through the discharging plate 250 and connected to the piston rod 620, so that when the air cylinder 610 and the piston rod 620 move cooperatively, the punching male die 500 can be driven to move toward or away from the lower die assembly 100, so as to realize punching.

In this embodiment, the discharging plate 250 is formed with a through hole 252, the punching male die 500 is disposed through the through hole 252, the upper die assembly 200 further includes a second elastic member 260, and the second elastic member 260 is disposed in the through hole 252 and sleeved outside the punching male die 500 for buffering the movement of the punching male die 500, so that the punching male die 500 is more stable in the process of the punching movement.

In this embodiment, the concave die 120 is provided with the abdicating groove 121, the abdicating groove 121 is disposed corresponding to the punching convex die 500, and is configured to cooperate with the punching convex die 500 to realize punching, the abdicating groove 121 includes the first groove section 122 and the second groove section 123, the first groove section 122 is located on one side of the second groove section 123 close to the upper die assembly 200, the width of the first groove section 122 is smaller than the width of the second groove section 123, so that the punching convex die 500 can bring the punching waste formed by punching the material 20 into the second groove section 123, and in the process that the punching convex die 500 is reset to be away from the abdicating groove 121, the punching waste can be limited by the width of the first groove section 122 to reduce the possibility that the punching waste is brought out of the abdicating groove 121, which is beneficial to subsequent collection and processing of the punching waste.

In the embodiment, the lower die holder 110 is formed with an air passage 111, and the air passage 111 is communicated with the relief groove 121 for discharging punching waste. Specifically, one end of the air duct 111 may be connected to an air blowing device, and the punching waste falling into the air duct 111 from the abdicating groove 121 may be blown out by the air blowing device, so as to avoid the punching waste from accumulating in the lower die assembly 100.

In this embodiment, the die mechanism 10 further includes a guide pillar 700, and the guide pillar 700 is disposed through the upper die base 210 and the lower die base 110, so that the relative positions of the upper die base 210 and the lower die base 110 can be more stable.

In this embodiment, the upper die holder 210 may be fixedly connected to the mounting plate 820 through the supporting plate 810, the mounting plate 820 is fixedly connected to the base plate 840 through the supporting rod 830, and the position of the base plate 840 is fixed, so that the position of the upper die holder 210 is also fixed to maintain the stability of the pit-punching male die 220 during the movement process.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A die mechanism, comprising:

2. The die mechanism of claim 1 wherein the punch is movably connected to the upper die base such that the second drive can drive the punch to move relative to the upper die base to move toward or away from the lower die assembly.

3. The die mechanism according to claim 1,

the upper die assembly comprises a plurality of dowel bars and a base plate, the dowel bars penetrate through the upper die base and can slide relative to the upper die base, the base plate is connected with the plurality of dowel bars, the pit punching male die is connected with the dowel bars,

the second driving piece is connected with a pressing plate, the pressing plate and the base plate are arranged at intervals, and the second driving piece can drive the pressing plate to move towards the direction close to the base plate, so that the pressing plate is abutted against the base plate and further drives the pit punching male die to move towards the direction close to the lower die assembly.

4. The die mechanism of claim 3, wherein the upper die assembly further comprises a first elastic member disposed between the backing plate and the upper die base for acting on the backing plate after the force applied to the backing plate by the pressure plate is removed, so that the backing plate moves away from the lower die assembly.

5. The die mechanism of claim 1 wherein the upper die assembly further includes a stripper plate disposed on a side of the upper die base adjacent the lower die assembly and disposed adjacent the pit punch for cooperating with the pit punch for discharging, the stripper plate having a cushioning strip disposed on a side adjacent the lower die assembly.

6. The die mechanism of claim 5 wherein said third drive member includes a cylinder disposed on a side of said upper die base remote from said lower die assembly and a piston rod disposed through said upper die base, said punch disposed through said stripper plate and connected to said piston rod.

7. The die mechanism according to claim 6, wherein the stripper plate is formed with a through hole through which the piercing punch is disposed, and the upper die assembly further includes a second elastic member disposed in the through hole and sleeved outside the piercing punch for buffering movement of the piercing punch.

8. The die mechanism according to claim 1, wherein the female die is provided with a relief groove, the relief groove is arranged corresponding to the punching male die and is used for matching with the punching male die to realize punching, the relief groove comprises a first groove section and a second groove section, the first groove section is arranged on one side, close to the upper die assembly, of the second groove section, and the width of the first groove section is smaller than that of the second groove section.

9. The die mechanism according to claim 8, characterized in that the lower die holder is formed with an air passage which is communicated with the relief groove for discharging punching waste.

10. The die mechanism of claim 1 further comprising guide posts disposed through the upper die base and the lower die base.