CN111180751A

CN111180751A - Edge-curling spring pressure bar of cylindrical alkaline battery

Info

Publication number: CN111180751A
Application number: CN202010071286.8A
Authority: CN
Inventors: 黄科帅; 蒋蒙; 朱程峰; 董飞达
Original assignee: Ningbo Jinshan Shuanglu Battery Co Ltd
Current assignee: Ningbo Jinshan Shuanglu Battery Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-05-19
Anticipated expiration: 2040-01-21
Also published as: CN111180751B

Abstract

The invention discloses a crimping spring compression bar of a cylindrical alkaline battery, which belongs to the technical field of battery crimping devices and comprises a crimping frame, at least one pair of crimping wheels, an upper compression bar arranged in the crimping frame, bearing fixing sleeves arranged in the crimping frame, wherein the crimping wheels are symmetrically arranged at two sides of the upper compression bar, the lower ends of the bearing fixing sleeves are fixedly connected with the upper compression bar, and springs are arranged at the upper ends of the bearing fixing sleeves. The invention designs the current collector and the upper pressure rod into a movable whole on the basis of the original hemming frame structure, and adopts a simple spring mechanism to ensure that the upper pressure rod can flexibly move up and down under the action of the relative pressure and the spring force of the current collector, thereby not only reducing the requirement on the dimensional precision of the upper pressure rod, but also reducing the damage to the current collector by utilizing the buffer force of the spring.

Description

Edge-curling spring pressure bar of cylindrical alkaline battery

Technical Field

The invention belongs to the technical field of battery crimping devices, and particularly relates to a crimping spring compression bar of a cylindrical alkaline battery.

Background

As the main energy of national life, the alkaline zinc-manganese dry battery is one of the most important batteries in the current battery market, the alkaline battery with the same type is 3-7 times of the capacity and the discharge time of the common battery, and the difference between the low-temperature performance and the capacity is larger. As an environment-friendly primary battery, with the coming of the digital electrical appliance era, the improvement of the living standard of people and the enhancement of the consciousness of environmental protection, the alkaline zinc-manganese dry battery occupies the mainstream market of battery consumption.

The alkaline battery is manufactured by filling positive and negative electrode materials in a positive steel shell, and sealing the battery with a negative electrode sealing body to prevent leakage of the internal materials. Therefore, the sealing formation of the battery is particularly important as the last pass of battery manufacturing, and not only can the size be determined to meet the process standard, but also whether the battery has the phenomena of liquid leakage, white exposure and the like, and the performance is influenced.

The process requirement is self-evident when the steel shell edge is curled to be used as one step of battery sealing forming. At present, the steel shell of a cylindrical alkaline battery is curled by a pressing rod to support a current collector, an opening of the steel shell is rolled inwards by a high-speed rotating mode of a curling wheel, and the difference of the depths of scribed lines of the battery is caused by the difference of performances of different steel shells, so that the height of the current collector after being inserted is different.

In summary, in order to solve the structural deficiency of the crimping and sealing device for the cylindrical alkaline battery, it is necessary to design a crimping spring-pressing rod for the cylindrical alkaline battery that does not damage the current collector.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a crimping spring compression bar of a cylindrical alkaline battery, which does not damage a current collector.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a cylindrical alkaline battery's turn-up spring depression bar, is in including turn-up frame, at least a pair of turn-up wheel, setting last depression bar in the turn-up frame, turn-up wheel symmetry sets up go up the both sides of depression bar, still including setting up the fixed cover of bearing in the turn-up frame, the fixed cover lower extreme of bearing with go up depression bar fixed connection, the fixed cover upper end of bearing still is equipped with the spring.

As a further improvement of the invention, the upper end of the spring is provided with a spring limiting screw, the top of the spring limiting screw is provided with a rotating groove, and the side surface of the spring limiting screw is provided with a stud screw for positioning.

As a further improvement of the invention, the spring is connected with the spring limiting screw through a spring gasket.

As a further improvement of the invention, the upper pressure lever is fixed at the bottom of the bearing fixing sleeve through a plane bearing.

As a further improvement of the invention, the lower end of the upper pressure lever is provided with a nylon head for installing a current collector, and an installation space is reserved between the side surface of the nylon head and the inner edge of the lower end of the hemming wheel.

As a further improvement of the invention, the diameter of the upper end of the crimping frame is smaller than that of the lower end, and the connection part is transited through a slope.

As a further improvement of the invention, the top of the upper end of the curling frame is provided with a circular groove, and the spring limiting screw is positioned in the circular groove.

As a further improvement of the invention, the lower end of the curling frame is provided with an installation groove, and the curling wheels are fixed on two sides of the installation groove through fasteners.

Compared with the prior art, the invention has the following beneficial effects:

the invention designs the current collector and the upper pressure rod into a movable whole on the basis of the original hemming frame structure, and adopts a simple spring mechanism to ensure that the upper pressure rod can flexibly move up and down under the action of the relative pressure and the spring force of the current collector, thereby not only reducing the requirement on the dimensional precision of the upper pressure rod, but also reducing the damage to the current collector by utilizing the buffer force of the spring.

Drawings

FIG. 1 is an exploded view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention.

In the figure, 100, a hemming frame; 101. a circular groove; 102. mounting grooves; 110. an upper pressure lever; 111. a flat bearing; 112. nylon heads; 120. a hemming wheel; 130. a bearing fixing sleeve; 140 of a solvent; a spring; 141. a spring washer; 150. a spring limit screw; 151. a rotating tank; 152. a stud screw.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-2, a crimping spring compression bar for a cylindrical alkaline battery comprises a crimping frame 100, an upper compression bar 110 disposed in the crimping frame 100, a crimping wheel 120, the crimping wheel 120 symmetrically disposed at two sides of the upper compression bar 110, and a bearing fixing sleeve 130 disposed in the crimping frame 100, wherein the lower end of the bearing fixing sleeve 130 is fixedly connected with the upper compression bar 110, and the lower end of the bearing fixing sleeve 130 is limited by a step of the crimping frame 100, a spring 140 is further disposed at the upper end of the bearing fixing sleeve 130, a spring limiting screw 150 is disposed at the upper end of the spring 140 through a spring gasket 141, and the buffer force of the spring 140 can reduce the damage to a current collector.

Specifically, when the cylindrical alkaline battery steel shell is curled, the curling frame 100 moves down to contact the battery under the influence of the cam track while rotating at a high speed, the upper pressing rod 110 contacts the end face of the current collector in preference to the curling wheel 120, the bearing fixing sleeve 130 is driven by the upper pressing rod 110 to move upwards integrally after being stressed, the spring 140 is compressed, the force of the spring 140 is increased, the pressure of the relative force on the current collector is gradually increased, and the compression is stopped until the steel shell contacts the curling wheel 120 to curl. After the crimping is completed, the crimping frame 100 moves upwards, the upper pressure lever 110 is separated from the end face of the current collector, the force is not applied any more, the spring 140 is restored to the original position, and the upper pressure lever 110 is restored to the original position again.

Preferably, the top of the spring limiting screw 150 is provided with a rotation groove 151, and the side of the spring limiting screw 150 is provided with a stud screw 152 for positioning. The present invention can control the initial compression degree of the spring 140 by screwing the spring limit screw 150 through the rotation groove 151, thereby changing the magnitude of the force of the spring 140.

In actual work, if the depth of the scribed line is not deep due to the influence of the self performance of different types of steel shells, the position of the current collector after insertion is higher, and the distance between the upper pressure rod 110 and the end face of the current collector is shortened, only the spring limiting screw 150 needs to be screwed upwards at the moment, so that the initial spring 140 force borne by the upper pressure rod 110 is reduced, the adjustment can be carried out at any time according to the actual edge curling effect in the production process, the requirement on the size precision of the upper pressure rod 110 is lowered, and the damage to the current collector is also reduced.

Preferably, the upper pressing rod 110 is fixed at the bottom of the bearing fixing sleeve 130 through a plane bearing 111, a nylon head 112 is arranged at the lower end of the upper pressing rod 110, an installation space is reserved between the side surface of the nylon head 112 and the inner edge of the lower end of the hemming wheel 120, the nylon head 112 is used for installing the current collector, and in the hemming process, the current collector can enter the reserved installation space to perform hemming under the driving of the upper pressing rod 110. Meanwhile, the upper pressure rod 110 and the current collector are designed into a movable whole, and the spring 140 is adopted, so that the upper pressure rod 110 can flexibly move up and down under the action of the relative pressure of the current collector and the force of the spring 140.

Preferably, the diameter of the upper end of the curling frame 100 is smaller than that of the lower end, the connection part is transited through an inclined plane, the top of the upper end of the curling frame 100 is provided with a circular groove 101, a spring limit screw 150 is positioned in the circular groove 101, when the initial compression degree of the spring 140 needs to be controlled, the spring limit screw 150 only needs to be extended into and screwed from the circular groove 101, the lower end of the curling frame 100 is provided with a mounting groove 102, and the curling wheels 120 are fixed on two sides of the mounting groove 102 through fasteners.

The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics. The foregoing is a detailed description of the invention, and it should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principle of the invention, and are intended to be within the scope of the invention.

Claims

1. The utility model provides a cylindrical alkaline battery's turn-up spring depression bar, its characterized in that includes the hem frame, at least a pair of hem wheel, sets up last depression bar in the hem frame, the hem wheel symmetry sets up go up the both sides of depression bar, still including setting up the fixed cover of bearing in the hem frame, the fixed cover lower extreme of bearing with go up depression bar fixed connection, the fixed cover upper end of bearing still is equipped with the spring.

2. The crimping spring rod according to claim 1, wherein said spring has a spring stop screw at its upper end, said spring stop screw has a rotation slot at its top, and said spring stop screw has a stud screw at its side for positioning.

3. The crimping spring strut for a cylindrical alkaline cell of claim 2, wherein said spring is connected to said spring retaining screw by a spring washer.

4. The crimping spring leg for cylindrical alkaline batteries of claim 1, wherein said upper end of said upper leg is secured to said bottom of said bearing retainer by a flat bearing.

5. The crimping spring compression bar of a cylindrical alkaline battery according to claim 1, wherein a nylon head for mounting a current collector is arranged at the lower end of the upper compression bar, and a mounting space is reserved between the side surface of the nylon head and the inner edge of the lower end of the crimping wheel.

6. The crimping spring strut for a cylindrical alkaline cell of claim 1, wherein said crimping frame has a smaller diameter at the upper end than at the lower end, the junction being in the form of a ramp transition.

7. The crimping spring strut for a cylindrical alkaline battery as claimed in claim 2, wherein a circular groove is formed at the top of the upper end of said crimping frame, and said spring limit screw is seated in said circular groove.

8. The crimping spring rod according to claim 1, wherein said crimping frame is provided with a mounting groove at a lower end thereof, and said crimping wheel is fixed at both sides of said mounting groove by a fastening member.