CN203132947U - Device for testing compaction density of powdered material - Google Patents

Device for testing compaction density of powdered material Download PDF

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Publication number
CN203132947U
CN203132947U CN 201320076868 CN201320076868U CN203132947U CN 203132947 U CN203132947 U CN 203132947U CN 201320076868 CN201320076868 CN 201320076868 CN 201320076868 U CN201320076868 U CN 201320076868U CN 203132947 U CN203132947 U CN 203132947U
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die
compacted density
counterdie
mould
proving installation
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CN 201320076868
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Chinese (zh)
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孙丰垒
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Taifeng Xianxian Taian Technology Co ltd
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PULEAD TECHNOLOGY INDUSTRY Co Ltd
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Abstract

The utility model provides a device for testing compaction density of a powdered material. The device mainly comprises an upper die, a middle die, a lower die, a pressure sensor, calipers and a pedestal, wherein the upper die, the middle die and the lower die are pressing dies; a columnar through duct is formed in the center of the middle die, the cross section area S of the middle die is 1 square centimeter, and such a design is convenient to calculate the volume of a tablet; the cross section of the upper die is larger than that of the through duct, the cross section of the lower die is the same as that of the through duct, the middle die is matched with the lower die to form a material cavity, and the upper die presses down to serve as a back cover to form a closed die cavity for pressing the powdered material; the pressure sensor is below the lower die and can be fixed on the pedestal together with the lower die; and the pressure borne by the lower die can be read directly. The testing device capable of calculating the compaction density of the powdered material by just weighing the weight of the powder and directly reading the thickness of the tablet at predetermined pressure has the advantages of simplicity in operation, convenience in calculation and short detection period.

Description

A kind of powder material compacted density proving installation
Technical field
The utility model relates to a kind of proving installation of battery plus-negative plate material compacted density, is specially a kind of proving installation of powder material compacted density.
Background technology
In manufacturing process, the compacted density of battery plus-negative plate material is the important indicator that influences battery performance at lithium ion battery, and in general, under the certain condition of process conditions, the compacted density of electrode material is more big, and it is more high that the capacity of battery just can be done.
The test of lithium ion battery plus-negative plate material compacted density at present mainly contains two big class methods:
One class is the making of simulated battery, after making battery pole piece behind batch mixing, coating, oven dry, the compressing tablet, test, compacted density=surface density/(thickness-collector thickness after pole piece rolls), this kind method is time-consuming, effort, sense cycle long and testing result precision and consistance are not strong;
The method of another kind of directly test powder material compacted density is to use mould that powder body material is pressed down in flakes at certain pressure, the compacted density that weight and the size by compressing tablet calculates this dusty material: compacted density=compressing tablet weight/compressing tablet volume.This kind method is simple relatively, and shortcoming is that dusty material is unsuitable molded in mould, and is inaccurate to the measurement of compressing tablet after taking out, though can calculate the compressing tablet size by mould being measured the back, also convenient not enough in the actual mechanical process.
Summary of the invention
The purpose of this utility model is, deficiency at above technology provides a kind of powder material compacted density proving installation, compared with prior art it cooperates with the powder casted die mould by measuring slide calliper rule, can directly read or calculate the volume behind the powder tablet forming, and then draw the compacted density of powder, can be simpler, effectively density measurement is carried out in the powder body material compacting.
For achieving the above object, the technical program is as follows:
A kind of powder material compacted density proving installation comprises base, and base is provided with guide piece, and the top of guide piece is arranged with middle mould, and the middle part of middle mould is provided with through hole and engage sleeves is provided with counterdie, and the below of counterdie is pressed and is provided with pressure transducer; The slide calliper rule vernier scale that counterdie is provided with a slide calliper rule main scale and cooperates with the slide calliper rule main scale; The top that middle die sleeve is provided with the counterdie position is provided with patrix.
Further, described guide piece is guide pole, and guide pole is provided with two, and both sides respectively arrange one.
Further, described through hole is circular hole.
Further, described pressure transducer is located on the base.
Further, described slide calliper rule main scale passes middle mould, and the slide calliper rule vernier scale is arranged in the mould upper end.
Further, be provided with the depth adjustment screw rod of mould in passing, be combined with the depth adjustment nut on the degree of depth screw rod of middle mould upper end.
Further, be provided with the compression spring between middle mould and the counterdie
Principle of work of the present utility model and the course of work are as follows:
This powder material compacted density proving installation mainly comprises patrix, middle mould, counterdie, pressure transducer, slide calliper rule and base.
Wherein, patrix, middle mould, counterdie are casted die mould, and middle mould is central to be the cylindrical duct that penetrates, sectional area S=1cm 2, the compressing tablet volume can be conveniently calculated in this design; The patrix sectional dimension is greater than the duct interface dimensions, and counterdie sectional dimension and this duct are measure-alike, and middle mould, counterdie cooperate the back to form loading chamber, and patrix presses down the back and carries out the pressurization of powder body material as back cover formation closed mould cavity;
Pressure transducer is positioned at the counterdie below, and is fixed on simultaneously on the base with counterdie, can directly read the force value that counterdie bears;
Use spring to support between middle mould and the counterdie, can compressing tablet be taken out by mould in pressing down;
In mould be connected by two guide pillars with base, middle mould can move up and down along guide pillar, other use one fixing with the fixing double-screw bolt of base in the mould height, can adjust the degree of depth of loading chamber by the top nut of adjustment double-screw bolt;
Main scale and the counterdie of slide calliper rule fix, the vernier scale of slide calliper rule and middle mould fix, by adjusting the height of main scale, make when the plane is mutually concordant on the plane and middle mould on the counterdie, the reading of slide calliper rule just is positioned at zero-bit, the depth value in material chamber can be directly read in this design from slide calliper rule, thereby reads the height value of compressing tablet when pressed powder;
Above-mentioned slide calliper rule structure is basic identical with vernier caliper commonly used, only need use main scale and the vernier scale part of vernier caliper;
Pressurize by moving down of patrix, pressuring method can be selected manual pressure or machinery pressurization for use.
As seen, the utility model relates to the powder body compacted density proving installation and cooperates with the powder casted die mould by measuring slide calliper rule, can directly measure the thickness of this powder body material behind pressurized, need not that compressing tablet is taken out the back and measures, and is simple more, effective.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings;
Fig. 1 is the utility model structural representation;
1-patrix, 2-middle mould, 3-counterdie, 4-pressure transducer, 5-base (signal), 6-slide calliper rule main scale, 7-slide calliper rule vernier scale, 8-depth adjustment nut, 9-guide pole.
Embodiment
The correlation technique content of not addressing below all can adopt or use for reference prior art.
In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
As shown in Figure 1, a kind of powder material compacted density proving installation, comprise base 5, base 5 is provided with guide piece, present embodiment adopts guide pole 9 to lead, and guide pole 9 is provided with two, lays respectively at base 1 two ends, the lower end of each guide pole 9 is fixed on the base 1, top sheathed and pass in mould 2.
The middle part of middle mould 2 is provided with manhole, and seamless engage sleeves is provided with counterdie 3 in the through hole, and middle mould 2 can slide up and down along counterdie 3 under the guide effect of guide pole 9, and the below of counterdie 3 is pressed and is provided with pressure transducer 4, and the below of pressure transducer 4 is base 1.
Counterdie 3 is provided with one and has slide calliper rule main scale 6 scale and that pass middle mould 2, cooperates with slide calliper rule main scale 6 to be provided with slide calliper rule vernier scale 7, and these slide calliper rule vernier scale 7 is arranged in mould 2 upper ends and can reads the scale of its position slide calliper rule main scale 6.
Be provided with the depth adjustment screw rod of mould 2 in passing, be combined with depth adjustment nut 8 on the middle mould 2 upper end degree of depth screw rods.
The top that middle mould 2 is arranged with lead to the hole site is provided with patrix 1, and patrix 1 lower surface diameter is greater than through-hole diameter.
During use, prepare the mould assembling, adjust the degree of depth in depth adjustment nut 8 adjustable material all in one piece chambeies, convenient control charge;
The accurate weighing constant weight g of G(unit) powder body material with its mould material chamber of carefully all packing into, and does not overflow;
Use manual pressure or mechanical pressuring method that patrix 1 is pressed down with middle mould 2 and contact, continue to pressurize then that patrix together moves down with middle mould, feasiblely expect that powder body material begins pressurized in the chamber, pressure transducer 4 shows force value thereupon;
Stop pressurization and keep when being forced into predetermined pressure following time, can directly read the degree of depth in material chamber this moment by slide calliper rule, and this degree of depth is very expected the cm of thickness H(unit of compressing tablet in the chamber):
Calculate the compacted density of this dusty material under this pressure by following simple formula:
Figure DEST_PATH_IMAGE002
(g/cm3 of unit):
Figure DEST_PATH_IMAGE004
S=1cm2 wherein then can be reduced to:
Figure DEST_PATH_IMAGE006
By manual or mechanical release, patrix is separated with middle mould, manually pressing down middle mould can will expect that conveniently compressing tablet takes out in the chamber, use hairbrush, rubber pipette bulb etc. to clean out afterwards and expect to prepare to carry out the test that next organizes material behind the chamber.
Use the particularly compacted density of lithium ion battery plus-negative plate material of this device to test powder body material, have simple to operately, advantage such as convenience of calculation, sense cycle are short: the thickness that only needs weighing powder weight and directly read the predetermined pressure lower sheeting can calculate the compacted density of this powder body material.
The above only is the application's preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and defined General Principle can realize under the situation of the spirit or scope that do not break away from the application in other embodiments herein.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.

Claims (7)

1. powder material compacted density proving installation, it is characterized in that: comprise base, base is provided with guide piece, and the top of guide piece is arranged with middle mould, and the middle part of middle mould is provided with through hole and engage sleeves is provided with counterdie, and the below of counterdie is pressed and is provided with pressure transducer; The slide calliper rule vernier scale that counterdie is provided with a slide calliper rule main scale and cooperates with the slide calliper rule main scale; The top that middle die sleeve is provided with the counterdie position is provided with patrix.
2. powder material compacted density proving installation according to claim 1, it is characterized in that: described guide piece is guide pole, and guide pole is provided with two, and both sides respectively arrange one.
3. the described powder material compacted density proving installation of claim 1, it is characterized in that: described through hole is circular hole.
4. the described powder material compacted density proving installation of claim 1, it is characterized in that: described pressure transducer is located on the base.
5. the described powder material compacted density proving installation of claim 1, it is characterized in that: described slide calliper rule main scale passes middle mould, and the slide calliper rule vernier scale is arranged in the mould upper end.
6. the described powder material compacted density proving installation of claim 1 is characterized in that: be provided with the depth adjustment screw rod of mould in passing, be combined with the depth adjustment nut on the degree of depth screw rod of middle mould upper end.
7. the described powder material compacted density proving installation of claim 1 is characterized in that: be provided with the compression spring between middle mould and the counterdie.
CN 201320076868 2013-02-19 2013-02-19 Device for testing compaction density of powdered material Expired - Lifetime CN203132947U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320076868 CN203132947U (en) 2013-02-19 2013-02-19 Device for testing compaction density of powdered material

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Application Number Priority Date Filing Date Title
CN 201320076868 CN203132947U (en) 2013-02-19 2013-02-19 Device for testing compaction density of powdered material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682747A (en) * 2018-12-19 2019-04-26 合肥国轩高科动力能源有限公司 Test method for compaction of lithium ion battery electrode powder material
CN110907310A (en) * 2019-12-11 2020-03-24 广州立邦涂料有限公司 Method for detecting density of automobile coating dry film
CN113418764A (en) * 2021-06-17 2021-09-21 北京科技大学 Automatic sample pressing device and method for preparing block mass with specific porosity
CN114279893A (en) * 2021-12-22 2022-04-05 安徽博石高科新材料股份有限公司 Method for testing compacted density of positive electrode material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682747A (en) * 2018-12-19 2019-04-26 合肥国轩高科动力能源有限公司 Test method for compaction of lithium ion battery electrode powder material
CN109682747B (en) * 2018-12-19 2021-06-11 合肥国轩高科动力能源有限公司 Test method for compaction of lithium ion battery electrode powder material
CN110907310A (en) * 2019-12-11 2020-03-24 广州立邦涂料有限公司 Method for detecting density of automobile coating dry film
CN113418764A (en) * 2021-06-17 2021-09-21 北京科技大学 Automatic sample pressing device and method for preparing block mass with specific porosity
CN114279893A (en) * 2021-12-22 2022-04-05 安徽博石高科新材料股份有限公司 Method for testing compacted density of positive electrode material

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Denomination of utility model: Device for testing compaction density of powdered material

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Pledgee: Chinese bank Limited by Share Ltd. Xining Gan River Industrial Park Branch

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