CN219357573U

CN219357573U - Continuous trimming and discharging die for polar plate of hydrogen fuel cell

Info

Publication number: CN219357573U
Application number: CN202320462470.4U
Authority: CN
Inventors: 蔡磊明; 李民; 沙志才; 于广海
Original assignee: Wuxi Weiyan New Energy Technology Co ltd; Wuxi Micro Research Co Ltd
Current assignee: Wuxi Weiyan New Energy Technology Co ltd; Wuxi Micro Research Co Ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-07-18
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to the technical field of hydrogen fuel cells, in particular to a continuous trimming and discharging die for a polar plate of a hydrogen fuel cell, which is in butt joint with a material belt feeder and is used for separating a metal polar plate formed on the material belt from a material belt carrier. The continuous trimming and discharging die for the hydrogen fuel cell polar plate ensures the dimensional accuracy of the metal polar plate, improves the production efficiency and the product quality, and reduces the reject ratio and the cost.

Description

Continuous trimming and discharging die for polar plate of hydrogen fuel cell

Technical Field

The utility model relates to the technical field of hydrogen fuel cells, in particular to a continuous trimming and discharging die for a polar plate of a hydrogen fuel cell.

Background

With the rapid expansion of the electric automobile industry, most electric automobiles rely on lithium ion batteries to store electric power so as to expand the endurance mileage. But the on-state scientists have found that the different forms associated with lithium extraction and battery fabrication can all contribute to environmental degradation and compromise biodiversity. In addition, the recovery rate of the lithium ion battery is low, and how to recover valuable metals and prolong the service life of the battery is the limitation of the existing lithium ion battery. Hydrogen fuel cell technology has evolved in this regard because hydrogen energy itself is a clean energy source.

However, the metal polar plate is used as a core part of the hydrogen fuel cell, the processing process is that the metal polar plate raw material enters a forming die from a feeder to form a metal polar plate runner part, all holes on the polar plate are punched by a punching die, and finally the metal polar plate is cut off and separated from a material belt by a trimming die. In the process, the material belt needs to be transferred for many times, so that the production efficiency is affected, the deformation is easy to cause, and the processing precision and the quality of finished products are affected.

Disclosure of Invention

Based on the problems, the utility model aims to provide a continuous trimming and discharging die for a hydrogen fuel cell polar plate, which solves the problem of low production efficiency of a metal polar plate, reduces manual operation and ensures consistency of product quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a continuous trimming discharging mould for polar plate of hydrogen fuel cell is butt-jointed with a feeding machine for separating the metallic polar plate formed on the material belt from the carrier of the material belt, comprising an upper mould and a lower mould, the upper mould comprises an upper mould base, an upper backing plate is arranged on the upper mould base, a cutting punch is arranged on the upper backing plate, the lower mould comprises a lower mould base, a lower backing plate is arranged on the lower mould base, a lower mould plate is arranged on the lower backing plate, a lower die cutting edge is embedded in the lower mould plate, the lower die cutting edge and the cutting punch cooperate to finish trimming, a liftout pin is arranged on the discharging side of the lower die cutting edge, and a slide plate for containing the blanking of the metallic polar plate is arranged on the outer side of the lower mould plate.

In particular, the cutting punch is H-shaped, the middle section transversely cuts the material belt, and the two side sections cut the waste side edges of the material belt.

Specifically, the ejector pin is arranged in the lower die plate in a penetrating manner, the bottom of the ejector pin is provided with a spring in a pressing manner, and in the die opening state, the spring acts on the ejector pin and ejects the ejector pin out of the surface of the lower die plate, so that the top of the metal polar plate obliquely slides down.

Specifically, the ejector pin is embedded in the lower die plate, and is provided with an air blowing channel, and high-pressure air is sprayed in the air blowing channel in the die opening state to blow and obliquely slide the metal polar plate.

In particular, the edge of the lower template is provided with a slope surface which is connected with the sliding plate.

Particularly, upper clamping plates are arranged on the upper backing plate and positioned on two sides of the cutting punch, a stripper plate is arranged on the upper clamping plates through a spring guide pillar and guide sleeve structure, a stop plate is clamped between the stripper plate and the upper clamping plates, and the stripper plate abuts against the lower die plate in a die closing state.

Particularly, the bottom of die holder is provided with down pad foot, and the bottom of lower pad foot is provided with the mounting panel.

In summary, compared with the prior art, the continuous trimming and discharging die for the hydrogen fuel cell polar plate has the advantages that after the runner characteristics of the metal polar plate are formed and all hole characteristics are finished, the continuous trimming and discharging mode is utilized to cut off edge scraps once, and meanwhile, under the action of the ejector pins on the die, the cut metal polar plate is discharged to the conveying belt, so that the whole production process of the metal polar plate is finished, the dimensional accuracy of the metal polar plate is ensured, the production efficiency and the product quality are improved, and the reject ratio and the cost are reduced.

Drawings

Fig. 1 is a schematic structural diagram of a continuous trimming and discharging mold for a polar plate of a hydrogen fuel cell according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram II of a continuous trimming and discharging mold for a polar plate of a hydrogen fuel cell according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a cutting punch in a continuous trimming and discharging die for a hydrogen fuel cell plate according to an embodiment of the present utility model.

In the figure:

1-an upper die holder; 2-an upper backing plate; 3-cutting the punch; 4-a lower die holder; 5-a lower backing plate; 6-lower template; 7-cutting the lower die to form a cutting edge; 8-liftout pins; 9-a slide plate; 10-slope surface; 11-upper clamping plate; 12-stripping plates; 13-a stop plate; 14-foot pad; 15-mounting plate.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, mechanically connected, electrically connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present preferred embodiment provides a continuous trimming and discharging mold for a hydrogen fuel cell electrode plate, which is in butt joint with a material belt feeder, receives electrode plate material belts with forming flow channel characteristics and finishing all hole characteristics, and separates a metal electrode plate from a material belt carrier.

The continuous trimming discharging die comprises an upper die and a lower die, wherein the upper die comprises an upper die base 1, an upper base plate 2 is arranged on the upper die base 1, a cutting punch 3 is arranged on the upper base plate 2, the lower die comprises a lower die base 4, a lower base plate 5 is arranged on the lower die base 4, a lower die plate 6 is arranged on the lower base plate 5, a lower die cutting edge 7 is embedded in the lower die plate 6, the lower die cutting edge 7 is matched with the cutting punch 3 to finish trimming, a liftout pin 8 is arranged on the discharging side of the lower die cutting edge 7, and a slide plate 9 for containing metal polar plate blanking is arranged on the outer side of the lower die plate 6.

The cutting punch 3 is preferably H-shaped, the middle section transversely cuts the material belt, and the two side sections cut the waste side edges of the material belt, so that the metal polar plates are rapidly cut along the shape of the metal polar plates, and the metal polar plates are peeled off the material belt carrier one by one.

The ejector pin 8 in this embodiment is inserted into the lower die plate 6, and a spring is pressed at the bottom of the ejector pin 8, and in the open die state, the spring acts on the ejector pin 8 and ejects the ejector pin 8 out of the surface of the lower die plate 6, so that the metal polar plate is ejected and slides obliquely. Or, the ejector pin 8 is embedded in the lower die plate 6, and an air blowing channel is arranged in the ejector pin 8, and in the die opening state, high-pressure air is sprayed in the air blowing channel to blow and obliquely slide the metal polar plate. The metal polar plate can be obliquely arranged to slide off no matter in the form of a spring or in the form of blowing.

Further, in order to help the blanking to be smooth, the edge of the lower die plate 6 is provided with a slope surface 10 which is engaged with the slide plate 9.

The upper base plate 2 is provided with an upper clamping plate 11 at two sides of the cutting punch 3, the upper clamping plate 11 is provided with a stripper plate 12 through a spring guide pillar and guide sleeve structure, a stop plate 13 is clamped between the stripper plate 12 and the upper clamping plate 11, and the stripper plate 12 abuts against the lower die plate 6 in a die closing state.

In addition, the bottom of die holder 4 is provided with lower pad foot 14, and the bottom of lower pad foot 14 is provided with mounting panel 15.

The specific action process is as follows:

after the electrode plate raw materials are molded and punched through a runner, the material belt is conveyed to a continuous trimming discharging die under the action of a feeder; when the upper die of the die starts to move downwards from the top dead center of the punch under the action of the press slide block, the stripper plate 12 compresses the material belt under the action of elasticity; as the upper die continues to descend, at the moment, the cutting punch 3 starts to contact the material belt and enters the lower die cutting knife edge 7, so that the metal polar plate and the material belt carrier are smoothly separated; after the die is opened, under the action of the ejection pin 8, the metal polar plate from which the scraps are removed is ejected obliquely, the metal polar plate smoothly slides out of the die on the sliding plate 9, and the separation of the metal polar plate and the material belt carrier is completed under one stroke of the punch.

In conclusion, after the runner characteristics of the metal polar plate are formed and all hole characteristics are finished, the continuous trimming discharging mold for the hydrogen fuel cell polar plate is used for cutting off the edge scraps once by utilizing a continuous trimming discharging mode, and meanwhile, under the action of the ejection pin on the mold, the cut metal polar plate is discharged to the conveying belt, so that the whole production process of the metal polar plate is finished, the dimensional accuracy of the metal polar plate is ensured, automatic processing is realized, the production efficiency and the product quality are improved, and the reject ratio and the cost are reduced.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a continuous side cut discharge die of hydrogen fuel cell polar plate, is docked with the material area feeder for with the metal polar plate of material area upper shaping separates with the material area carrier, its characterized in that, including last mould and lower mould, it includes the upper die base to go up the mould, be provided with the upper padding plate on the upper padding plate, be provided with the cutting punch on the upper padding plate, the lower mould includes the die holder, be provided with the lower bolster on the die holder, be provided with the lower bolster, the lower bolster is equipped with the lower die cutting edge in the lower bolster, the lower die cutting edge with the cutting punch cooperation is accomplished the side cut, the discharge side of lower die cutting edge sets up the liftout round pin, the outside of lower bolster is provided with the smooth flitch that holds the metal polar plate unloading.

2. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the cutting punch is H-shaped, the middle section transversely cuts off the material belt, and the two side sections cut off the waste side edges of the material belt.

3. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the ejector pin is arranged in the lower die plate in a penetrating manner, a spring is arranged at the bottom of the ejector pin in a pressing manner, and in a die opening state, the spring acts on the ejector pin and ejects the ejector pin out of the surface of the lower die plate, so that the metal polar plate is obliquely slipped.

4. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the ejector pin is embedded in the lower die plate, an air blowing channel is arranged in the ejector pin, and high-pressure air is sprayed in the air blowing channel in a die opening state to blow and obliquely slide the metal polar plate.

5. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the edge of the lower template is provided with a slope surface connected with the sliding plate.

6. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the cutting punch is characterized in that an upper clamping plate is arranged on the upper backing plate and located on two sides of the cutting punch, a stripper plate is arranged on the upper clamping plate through a spring guide pillar and guide sleeve structure, a stop plate is clamped between the stripper plate and the upper clamping plate, and in a die closing state, the stripper plate abuts against the lower die plate.

7. The continuous trimming and discharging mold for hydrogen fuel cell electrode plates according to claim 1, wherein: the bottom of die holder is provided with down the pad foot, the bottom of pad foot is provided with the mounting panel down.