阅读说明：本技术 聚合物软包锂电池铝塑膜冲壳及切边模具 (Polymer soft package lithium battery aluminum plastic film punching shell and trimming die ) 是由 周红 于 2021-07-19 设计创作，主要内容包括：本发明公开一种聚合物软包锂电池铝塑膜冲壳及切边模具,涉及锂电池自动化生产设备技术领域,该聚合物软包锂电池铝塑膜冲壳及切边模具包括用于放置物料的放料板、用于对放料板上的物料进行挤压的可升降的压料板、用于对压料板在升降过程中起导向作用的导向部件、用于对放料板上的物料冲出坑体模型的冲头组件、用于对冲头组件起导向作用的导向组件、用于经冲头组件冲出坑体模型后的物料进行切边的切边组件以及用于收集经切边组件切边后所得废料的废料收集盒；通过放料板、压料板、冲头组件和切边组件的相互配合,实现对聚合物软包电池的铝塑膜进行冲压模型及其切边操作,提高了产品封装尺寸精确度、减少了报废率。(The invention discloses an aluminum plastic film punching shell and a trimming die of a polymer soft package lithium battery, which relate to the technical field of automatic production equipment of lithium batteries, and comprise a material placing plate for placing materials, a liftable material pressing plate for extruding the materials on the material placing plate, a guide component for guiding the material pressing plate in the lifting process, a punch component for punching the materials on the material placing plate out of a pit body model, a guide component for guiding the punch component, a trimming component for trimming the materials after being punched out of the pit body model by the punch component and a waste collecting box for collecting waste materials obtained after trimming by the trimming component; through the mutual cooperation of the material discharging plate, the material pressing plate, the punch assembly and the trimming assembly, the aluminum plastic film of the polymer soft package battery is subjected to a punching model and trimming operation, the packaging size accuracy of the product is improved, and the rejection rate is reduced.)

1. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die is characterized by comprising a material placing plate for placing materials, a liftable material pressing plate for extruding the materials on the material placing plate, a guide component for guiding the material pressing plate in the lifting process, a punch assembly for punching the materials on the material placing plate out of a pit body model, a guide assembly for guiding the punch assembly, a trimming assembly for trimming the materials punched out of the pit body model by the punch assembly and a waste collecting box for collecting waste materials trimmed by the trimming assembly; the material pressing plate is positioned on the upper surface of the material discharging plate in a descending manner, the material pressing plate corresponds to the material discharging plate, and the waste material collecting box is positioned below the material discharging plate; the punch assembly is provided with a liftable punch, the material discharging plate and the material pressing plate are respectively provided with a punch through hole for the punch to pass through, and the punch of the punch assembly sequentially passes through the punch through hole of the material discharging plate and the punch through hole of the material pressing plate from bottom to top so as to punch the material out of the pit body model; the trimming component is provided with a liftable trimming knife, openings for the trimming knife to pass through are formed in the material placing plate and the material pressing plate, the openings are located beside the punch through hole, and the trimming knife sequentially penetrates through the openings of the material pressing plate and the openings of the material placing plate from top to bottom to trim materials.

2. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 1, wherein: the trimming component further comprises a mounting plate and a trimming driving cylinder, the mounting plate is located on the upper surface of the material pressing plate, the trimming driving cylinder is vertically mounted on the mounting plate, the shaft end of the trimming driving cylinder is connected with a trimming knife, and the trimming driving cylinder drives the trimming knife to descend to penetrate through an opening of the material pressing plate and an opening of the material discharging plate so as to trim the material.

3. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 2, wherein: the guide part is a guide rod which is vertically arranged, and sleeves are arranged at the upper end and the lower end of the guide rod; the two guide rods sequentially penetrate through the mounting plate, the material pressing plate and the material discharging plate from top to bottom, and the mounting plate and the material pressing plate can move up and down relative to the guide rods.

4. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 1, wherein: the punch assembly further comprises a punch driving device and a bottom plate, the bottom plate is located below the material discharging plate, the punch is vertically installed on the bottom plate, the output end of the punch driving device is connected with the bottom plate, and the punch driving device drives the bottom plate and the punch to lift.

5. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 4, wherein: the punch comprises two circular punches and an arc punch, and the two circular punches and the arc punch are sequentially arranged at intervals; the number of the punch through holes on the material discharging plate and the material pressing plate is three, and the three punch through holes respectively correspond to the two circular punches and the arc-shaped punches.

6. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 4, wherein: the guide assembly comprises a base plate and a plurality of guide rods, the base plate is located below the bottom plate, the guide rods are vertically installed on the base plate, round holes for the guide rods to penetrate through are formed in the bottom plate, and the bottom plate and the punch can lift relative to the guide rods.

7. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 4, wherein: the supporting seats are arranged below the material placing plates and are L-shaped, the number of the supporting seats is two, and the two supporting seats are correspondingly arranged on two sides of the bottom plate.

8. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 4, wherein: the waste material collecting box is characterized in that a waste material guide groove is formed in the upper portion of the waste material collecting box, the waste material guide groove is installed between the bottom plate and the discharging plate, the punch vertically penetrates through the waste material guide groove, inclined planes inclining downwards are arranged on two sides of the waste material guide groove, and the waste material guide groove corresponds to the waste material collecting box.

9. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 1, wherein: the number of the trimming knives is two, the two openings for the trimming knives to pass through are formed in the material placing plate and the material pressing plate, and the two openings are located on two sides of the punch through hole.

10. The polymer soft package lithium battery aluminum plastic film shell punching and trimming die set of claim 1, wherein: guide posts for preventing the position of the trimming knife from deviating in the descending process are arranged on two sides of the trimming knife and are tightly connected to the two sides of the trimming knife; the material placing plate and the material pressing plate are both provided with guide post holes for guide posts on two sides of the trimming knife to pass through, and the two guide post holes are positioned on two sides of the opening.

Technical Field

The invention relates to the technical field of automatic production equipment of lithium batteries, in particular to a shell punching and trimming die for an aluminum plastic film of a polymer soft package lithium battery.

Background

The lithium polymer soft package battery (also called a polymer lithium battery) is also one kind of lithium ion battery, but compared with a liquid lithium battery (Li-ion), the lithium polymer soft package battery has the obvious advantages of high energy density, miniaturization, ultra-thinness, light weight, high safety and the like, and is a novel battery. The aluminum plastic film of the polymer soft package battery is usually produced by adopting the processes of stamping, stretching and the like, the products stamped by the similar dies in the market are subjected to multiple processes, and the manual trimming (small punching equipment such as manpower and clamps) is carried out, so that the problem of large working procedures such as position precision deviation time and the like after the former products are molded is solved; the accuracy consistency and the accuracy are poor, so that the packaging size difference of products is large, and a large number of packages are scrapped. Therefore, it is necessary to develop an integrated die for punching and trimming the shell of the polymer soft package battery by punching and stretching the aluminum plastic film up and down.

Disclosure of Invention

In view of the above, the invention provides a shell punching and trimming die for an aluminum plastic film of a polymer soft package lithium battery, which aims to overcome the defects in the prior art, and realizes the punching and trimming operations of a punching die and the trimming die for the aluminum plastic film of the polymer soft package lithium battery by mutually matching a material placing plate, a material pressing plate, a punch assembly and a trimming assembly, thereby solving the technical problem of poor position precision of the formed product in the prior art; the precision of the packaging size of the product is improved, and the rejection rate is reduced.

In order to achieve the purpose, the invention adopts the following technical scheme:

a polymer soft package lithium battery aluminum plastic film shell punching and trimming die comprises a material placing plate for placing materials, a liftable material pressing plate for extruding the materials on the material placing plate, a guide component for guiding the material pressing plate in the lifting process, a punch assembly for punching the materials on the material placing plate out of a pit body model, a guide assembly for guiding the punch assembly, a trimming assembly for trimming the materials punched out of the pit body model by the punch assembly and a waste collecting box for collecting waste materials trimmed by the trimming assembly; the material pressing plate is positioned on the upper surface of the material discharging plate in a descending manner, the material pressing plate corresponds to the material discharging plate, and the waste material collecting box is positioned below the material discharging plate; the punch assembly is provided with a liftable punch, the material discharging plate and the material pressing plate are respectively provided with a punch through hole for the punch to pass through, and the punch of the punch assembly sequentially passes through the punch through hole of the material discharging plate and the punch through hole of the material pressing plate from bottom to top so as to punch the material out of the pit body model; the trimming component is provided with a liftable trimming knife, openings for the trimming knife to pass through are formed in the material placing plate and the material pressing plate, the openings are located beside the punch through hole, and the trimming knife sequentially penetrates through the openings of the material pressing plate and the openings of the material placing plate from top to bottom to trim materials.

As a preferred embodiment: the trimming component further comprises a mounting plate and a trimming driving cylinder, the mounting plate is located on the upper surface of the material pressing plate, the trimming driving cylinder is vertically mounted on the mounting plate, the shaft end of the trimming driving cylinder is connected with a trimming knife, and the trimming driving cylinder drives the trimming knife to descend to penetrate through an opening of the material pressing plate and an opening of the material discharging plate so as to trim the material.

As a preferred embodiment: the guide part is a guide rod which is vertically arranged, and sleeves are arranged at the upper end and the lower end of the guide rod; the two guide rods sequentially penetrate through the mounting plate, the material pressing plate and the material discharging plate from top to bottom, and the mounting plate and the material pressing plate can move up and down relative to the guide rods.

As a preferred embodiment: the punch assembly further comprises a punch driving device and a bottom plate, the bottom plate is located below the material discharging plate, the punch is vertically installed on the bottom plate, the output end of the punch driving device is connected with the bottom plate, and the punch driving device drives the bottom plate and the punch to lift.

As a preferred embodiment: the punch comprises two circular punches and an arc punch, and the two circular punches and the arc punch are sequentially arranged at intervals; the number of the punch through holes on the material discharging plate and the material pressing plate is three, and the three punch through holes respectively correspond to the two circular punches and the arc-shaped punches.

As a preferred embodiment: the guide assembly comprises a base plate and a plurality of guide rods, the base plate is located below the bottom plate, the guide rods are vertically installed on the base plate, round holes for the guide rods to penetrate through are formed in the bottom plate, and the bottom plate and the punch can lift relative to the guide rods.

As a preferred embodiment: the supporting seats are arranged below the material placing plates and are L-shaped, the number of the supporting seats is two, and the two supporting seats are correspondingly arranged on two sides of the bottom plate.

As a preferred embodiment: the waste material collecting box is characterized in that a waste material guide groove is formed in the upper portion of the waste material collecting box, the waste material guide groove is installed between the bottom plate and the discharging plate, the punch vertically penetrates through the waste material guide groove, inclined planes inclining downwards are arranged on two sides of the waste material guide groove, and the waste material guide groove corresponds to the waste material collecting box.

As a preferred embodiment: the number of the trimming knives is two, the two openings for the trimming knives to pass through are formed in the material placing plate and the material pressing plate, and the two openings are located on two sides of the punch through hole.

As a preferred embodiment: guide posts for preventing the position of the trimming knife from deviating in the descending process are arranged on two sides of the trimming knife and are tightly connected to the two sides of the trimming knife; the material placing plate and the material pressing plate are both provided with guide post holes for guide posts on two sides of the trimming knife to pass through, and the two guide post holes are positioned on two sides of the opening.

Compared with the prior art, the die has the advantages and beneficial effects, and particularly, according to the technical scheme, the die is punched and the trimming operation of the aluminum plastic film of the polymer soft package battery is realized by adopting the mutual matching of the material placing plate, the material pressing plate, the punch assembly and the trimming assembly, so that the packaging size accuracy of a product is improved, and the rejection rate is reduced; the punch assembly and the trimming assembly can ensure the position accuracy consistency of the shell punching forming pit body and the leftover bits and pieces of the product, can reduce the post-procedure manual trimming (small punching equipment such as manpower, clamps and the like), and avoids the technical problem of large position accuracy deviation after the former product is formed; the full-automatic operation reduces the labor cost and improves the productivity.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a first perspective view of a mold according to the present invention;

FIG. 2 is a perspective view of the mold (with the top plate removed) from a second perspective of the present invention;

FIG. 3 is a perspective view of the mold of the present invention (with the top plate and mounting plate removed) from a third perspective;

FIG. 4 is a perspective view of the die of the present invention with the trim assembly removed;

FIG. 5 is a perspective view of the material discharge plate, punch assembly and guide assembly of the present invention;

FIG. 6 is a perspective view of the punch assembly and guide assembly of the present invention;

FIG. 7 is an exploded view of the punch assembly and guide assembly of the present invention.

The attached drawings indicate the following:

in the figure: 10. a supporting seat; 20. a material placing plate; 30. a material pressing plate; 31. a punch through hole; 32. an opening; 40. a guide member; 41. a guide bar; 42. a sleeve; 50. a punch assembly; 51. a punch; 52. a circular punch; 53. an arc-shaped punch; 54. a base plate; 55. a circular hole; 60. a guide assembly; 61. a substrate; 62. a guide bar; 70. a trimming assembly; 71. mounting a plate; 72. the trimming driving cylinder; 73. a trimming knife; 74. a guide post; 75. a guide post hole; 80. a waste collection box; 81. a waste guide chute; 82. a bevel.

Detailed Description

As shown in fig. 1 to 7, the invention relates to an aluminum plastic film shell punching and trimming die for a polymer soft package lithium battery, which comprises a material placing plate 20 for placing materials, a liftable material pressing plate 30 for extruding the materials on the material placing plate 20, a guide component 40 for guiding the material pressing plate 30 in the lifting process, a punch assembly 50 for punching the materials on the material placing plate 20 out of a pit body model, a guide assembly 60 for guiding the punch assembly 50, a trimming assembly 70 for trimming the materials after being punched out of the pit body model by the punch assembly 50, and a waste collecting box 80 for collecting waste materials obtained after trimming by the trimming assembly 70.

The pressure plate 30 is connected with a pressure plate driving cylinder, the pressure plate 30 is driven by the pressure plate driving cylinder to descend, the pressure plate 30 can be descended to be positioned on the upper surface of the discharging plate 20, and the pressure plate 30 corresponds to the discharging plate 20; the trimming component 70 is arranged above the pressure plate 30, and when the pressure plate 30 descends, the trimming component 70 above the pressure plate 30 descends together; the waste collection box 80 is located below the material discharge plate 20; the punch assembly 50 is provided with a liftable punch 51, the discharging plate 20 and the pressing plate 30 are respectively provided with a punch through hole 31 for the punch 51 to pass through, and the punch 51 of the punch assembly 50 sequentially passes through the punch through hole 31 of the discharging plate 20 and the punch through hole 31 of the pressing plate 30 from bottom to top so as to punch the material out of the pit body model; the trimming assembly 70 has a liftable trimming knife 73, the discharging plate 20 and the pressing plate 30 are both provided with an opening 32 for the trimming knife 73 to pass through, the opening 32 is located beside the punch through hole 31, and the trimming knife 73 passes through the opening 32 of the pressing plate 30 and the opening 32 of the discharging plate 20 from top to bottom in sequence to trim the material.

Specifically, the method comprises the following steps: the material is placed on the upper surface of the material placing plate 20, the material pressing plate 30 descends to the upper surface of the material placing plate 20 under the guidance of the guide component 40, and the material is tightly pressed between the material pressing plate 30 and the material placing plate 20; the punch 51 of the punch assembly 50 sequentially passes through the punch through hole 31 of the discharge plate 20 and the punch through hole 31 of the pressure plate 30 from bottom to top under the guidance of the guide assembly 60 to punch the material out of the pit body model; the trimming knife 73 of the trimming assembly 70 sequentially penetrates through the opening 32 of the material pressing plate 30 and the opening 32 of the material discharging plate 20 from top to bottom to trim the material so as to punch and cut the redundant leftover materials of the material; the cut waste falls into the waste collection box 80; through the mutual matching of the material discharging plate 20, the material pressing plate 30, the punch assembly 50 and the trimming assembly 70, the aluminum plastic film of the polymer soft package battery is subjected to a punching model and trimming operation, the packaging size accuracy of a product is improved, and the rejection rate is reduced; the punch assembly 50 and the trimming assembly 70 can ensure the position accuracy consistency of the shell punching forming pit body and the leftover bits and pieces of the product, can reduce the manual trimming of the post-process, and avoid the technical problem of large position accuracy deviation after the former product is formed; the full-automatic operation reduces the labor cost and improves the productivity.

The punch assembly 50 further comprises a punch driving device (not shown) and a bottom plate 54, wherein the bottom plate 54 is located below the material discharging plate 20, the punch 51 is vertically mounted on the bottom plate 54, the output end of the punch driving device is connected with the bottom plate 54, and the punch driving device drives the bottom plate 54 and the punch 51 to ascend and descend; the punch driving device can adopt a punch driving air cylinder or a punch driving motor, the punch 51 comprises two circular punches 52 and an arc punch 53, and the two circular punches 52 and the arc punch 53 are sequentially arranged at intervals; three punch through holes 31 are formed in the material discharge plate 20 and the material pressing plate 30, and the three punch through holes 31 correspond to the two circular punches 52 and the arc-shaped punch 53 respectively; the punch driving device drives the bottom plate 54 to ascend, and the punch 51 sequentially penetrates through the punch through hole 31 of the discharge plate 20 and the punch through hole 31 of the pressing plate 30 from bottom to top to punch the material out of the pit body model.

The guide assembly 60 comprises a base plate 61 and a plurality of guide rods 62, the base plate 61 is positioned below the base plate 54, the guide rods 62 are vertically installed on the base plate 61, round holes 55 for the guide rods 62 to pass through are formed in the base plate 54, the base plate 54 and the punch 51 can be lifted relative to the guide rods 62, the number of the guide rods 62 is four, and the four guide rods 62 are positioned at four corners of the base plate 61, so that the structural stability is enhanced; the punch driving device drives the bottom plate 54 and the punch 51 to move up and down, and the bottom plate 54 and the punch 51 move along the direction of the guide rod 62 in the lifting process due to the round hole 55 for the guide rod 62 to pass through on the bottom plate 54, so that the position of the punch 51 is prevented from being deviated, and the position accuracy is improved.

The trimming assembly 70 further comprises a mounting plate 71 and a trimming driving cylinder 72, the mounting plate 71 is located on the upper surface of the material pressing plate 30, the trimming driving cylinder 72 is vertically mounted on the mounting plate 71, the shaft end of the trimming driving cylinder 72 is connected with a trimming knife 73, and the trimming driving cylinder 72 drives the trimming knife 73 to descend through the opening 32 of the material pressing plate 30 and the opening 32 of the material discharging plate 20 to trim the material; after the punch assembly 50 punches the materials out of the pit body model, the trimming assembly 70 cuts the leftover materials of the materials; the number of the trimming knives 73 is two, the number of the openings 32 for the trimming knives 73 to pass through is two on the material placing plate 20 and the material pressing plate 30, and the two openings 32 are positioned at two sides of the punch through hole 31; the two trimming knives 73 can be used for synchronously trimming the leftover materials at the two sides of the material, so that the material trimming precision is improved; the guide posts 74 used for preventing the position of the trimming knife 73 from deviating in the descending process are arranged on the two sides of the trimming knife 73, the guide posts 74 are fastened and connected on the two sides of the trimming knife 73, guide post holes 75 used for allowing the guide posts 74 on the two sides of the trimming knife 73 to pass are formed in the discharging plate 20 and the pressing plate 30, the two guide post holes 75 are located on the two sides of the opening 32, the position of the trimming knife 73 is prevented from deviating through the guide posts 74, and the accuracy of the cutting position is improved.

The guide component 40 is a guide rod 41 which is vertically arranged, and sleeves 42 are arranged at the upper end and the lower end of the guide rod 41; the number of the guide rods 41 is two, the two guide rods 41 sequentially penetrate through the mounting plate 71, the material pressing plate 30 and the material discharging plate 20 from top to bottom, and the mounting plate 71 and the material pressing plate 30 can move up and down relative to the guide rods 41; the pressure plate 30 moves downwards under the action of the pressure plate driving cylinder, the trimming component 70 arranged on the upper surface of the pressure plate 30 also moves along with the downward movement of the pressure plate 30, the pressure plate 30 and the trimming component 70 move along the direction of the guide rod 41 in the downward movement process, the position of the pressure plate 30 and the position of the trimming component 70 are prevented from shifting, and the position accuracy is improved.

The supporting seats 10 are arranged below the discharging plate 20, the supporting seats 10 are L-shaped, the number of the supporting seats 10 is two, and the two supporting seats 10 are correspondingly positioned on two sides of the bottom plate 54; two supporting seats 10 can play a supporting role to blowing board 20, improve overall structure's the equilibrium degree, reinforcing structural stability.

A scrap guide groove 81 is formed above the scrap collecting box 80, the scrap guide groove 81 is installed between the bottom plate 54 and the discharging plate 20, the punch 51 vertically penetrates through the scrap guide groove 81, inclined surfaces 82 inclined downwards are formed at both sides of the scrap guide groove 81, and the scrap guide groove 81 corresponds to the scrap collecting box 80; after the trimming assembly 70 trims the leftover materials, the leftover materials fall into the waste material guide groove 81, and the leftover materials can be guided into the waste material collecting box 80 along the inclined surface 82 because the waste material guide groove 81 is provided with the downward inclined surface 82; the scrap guide chute 81 prevents the scrap from falling onto the bottom plate 54 of the punch assembly 50 and collects the scrap in the scrap collecting box 80.

The use method and the principle of the polymer soft package lithium battery aluminum plastic film shell punching and trimming die are as follows:

placing a material to be processed (an aluminum-plastic film packaging film) on the upper surface of the material placing plate, lowering the material pressing plate to the upper surface of the material placing plate, and tightly pressing the material between the material pressing plate and the material placing plate; the punch of the punch component sequentially passes through the punch through hole of the material discharging plate and the punch through hole of the material pressing plate from bottom to top so as to punch the material out of the pit body model; the trimming knife of the trimming component sequentially penetrates through the opening of the material pressing plate and the opening of the material placing plate from top to bottom to trim the material so as to punch and cut redundant leftover materials of the material; the cut waste materials are freely guided to fall into a waste material collecting box, and the processed materials are transferred; and circulating in sequence.

The design key point of the invention is that the punching model and the trimming operation of the aluminum plastic film of the polymer soft package battery are realized by adopting the mutual matching of the material placing plate, the material pressing plate, the punch assembly and the trimming assembly, so that the packaging size accuracy of the product is improved, and the rejection rate is reduced; the punch assembly and the trimming assembly can ensure the position accuracy consistency of the shell punching forming pit body and the leftover bits and pieces of the product, can reduce the manual trimming of the post procedure, reduces the use of a clamp and small punching equipment, saves the cost and avoids the technical problem of large position accuracy deviation of the formed product in the prior art; the full-automatic operation reduces the labor cost and improves the productivity.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.