CN208879383U - A kind of pressuring flat device of screening glass - Google Patents
A kind of pressuring flat device of screening glass Download PDFInfo
- Publication number
- CN208879383U CN208879383U CN201821548674.5U CN201821548674U CN208879383U CN 208879383 U CN208879383 U CN 208879383U CN 201821548674 U CN201821548674 U CN 201821548674U CN 208879383 U CN208879383 U CN 208879383U
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- limiting section
- screening glass
- pressuring flat
- flat device
- battery core
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Abstract
The utility model discloses a kind of pressuring flat devices of screening glass, wherein the pressuring flat device includes workbench, laminating mechanism and fixture；The fixture is installed on the workbench; the fixture includes two and is respectively used to the first limiting section of positioning battery core and the second limiting section for positioning the tab and screening glass that are located at the battery core end, and second limiting section is located between two first limiting sections；The laminating mechanism includes the pressing part above the fixture, and the pressing part is oppositely arranged with second limiting section；The pressing part can be moved along first direction to flatten the screening glass.The utility model embodiment will be flattened using pressuring flat device because of the screening glass of ultrasonic bonding warpage, under the premise of ensuring to weld print pulling force, effectively inhibit the risk for piercing through coating because screening glass deforms, in turn resulting in short circuit.
Description
Technical field
The utility model relates to the welding technology field of power battery tab, in particular to the pressing of a kind of screening glass fills
It sets.
Background technique
Generally, ultrasound is all made of between lithium battery anode screening glass and positive pole ear, cathode screening glass and negative lug
Wave welding procedure is attached, for prevent fall off, be broken or short circuit, usual postwelding need to be in ultrasonic weld zones front and back sides
Blue glue is pasted, then carries out tab bending, battery core closes the subsequent techniques such as core.
But due to the operational characteristic of ultrasonic bonding, positive screening glass and cathode screening glass are easily bent, and when such as welding, are surpassed
Sound wave soldering tip acts directly on screening glass, and the region that screening glass is contacted with soldering tip is by downward concentration active force, and soldering tip
Region surrounding other than acting surface is without constraint, the buckling deformation for causing screening glass surrounding more serious, especially positive screening glass because
Positive screening glass and cathode the screening glass change that deformation ratio cathode screening glass is even more serious, occurs in welding process are influenced by its material
Shape, warpage will lead to during battery core closes core, and the screening glass of warpage punctures adhesive tape or coating, causes battery short circuit, reduce and produce
Product excellent rate.In the battery, the screening glass of deformation can occupy tab bending space, cause following process difficult, as shown in Figure 1, electric
When pond is assembled, coating c is had on the outside of battery core a, if bending tab d by force when screening glass b deformation is larger, be easy to cause tab d to alter
Out coating c or even cause coating c tear, improve the security risk of battery short circuit.In addition, screening glass b will be severely deformed to be led
Weldering print surrounding flattened region area is caused to reduce, welding tensile test is difficult to carry out.
Currently, often reducing the deformation of screening glass, this method by adjusting the method for ultrasonic bonding process parameter
Although the deformation of screening glass can be alleviated, at most also screening glass deflection can only be reduced to 1~2mm, screening glass can not be eliminated
The defect for puncturing coating, improving cell safety hidden danger.Moreover reducing ultrasonic bonding process parameter can be because ultrasonic bond prints
Pulling force is smaller, often occurs because of the accident that stops production caused by rosin joint.
Utility model content
In order to solve the above technical problems, the utility model embodiment provides a kind of pressuring flat device.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model embodiment provides a kind of pressuring flat device of screening glass, and the pressuring flat device includes workbench, pressure
Close mechanism and fixture；The fixture is installed on the workbench, and the fixture includes two and is respectively used to the of positioning battery core
One limiting section and for position be located at the battery core end tab and the screening glass the second limiting section, it is described second limit
Portion is located between two first limiting sections；The laminating mechanism includes the pressing part above the fixture, the pressure
Horizontal member is oppositely arranged with second limiting section；The pressing part can be moved along first direction to flatten the screening glass.
In above scheme, first limiting section includes clamping element and the limiting platform for installing the battery core, described
Clamping element is mounted on the limiting platform, and the clamping element can move described the battery core to be fixed in a second direction
Between clamping element and second limiting section.
In above scheme, first limiting section further includes elastic component, and it is flat that described elastic component one end is fixed on the limit
On platform, the other end of the elastic component is connected with the clamping element.
In above scheme, first limiting section further includes telescoping cylinder, and it is flat that described telescoping cylinder one end is fixed on the limit
On platform, the other end of the telescoping cylinder is connected with the clamping element.
In above scheme, the pressuring flat device further includes at least two positioning pins, and the positioning pin is mounted on the work
On platform, the fixture is equipped with location hole corresponding with the positioning pin, and each positioning pin is arranged in corresponding described
Location hole.
In above scheme, the laminating mechanism further includes actuator and guide rod, and the actuator includes telescopic rod, described
Telescopic rod and the guide rod are connected with the pressing part, and the guide rod is parallel with the telescopic rod.
The utility model embodiment provides a kind of pressuring flat device of screening glass, will be because of ultrasonic bonding using pressuring flat device
The screening glass of warpage is flattened, ensure weld print pulling force under the premise of, effectively inhibit because screening glass deform pierce through coating, into
And cause the risk of short circuit.In pressuring flat device, the first limiting section of fixture is for positioning battery core, and the second limiting section is for positioning pole
Ear and screening glass, flattening part can match with the second limiting section relative to flatten when part is moved along first direction with the second limiting section
Conjunction flattens screening glass.
Detailed description of the invention
Fig. 1 is that tab is scurried out the structural schematic diagram of coating in the prior art；
Fig. 2 is an optional structural schematic diagram of pressuring flat device in the utility model embodiment；
Fig. 3 be Fig. 2 in A-A to cross-sectional view；
Fig. 4 is the cross-sectional view of B-B direction in Fig. 2；
Fig. 5 is explosive view when battery core and fixture assemble in the utility model embodiment；
Fig. 6 is another optional structural schematic diagram of pressuring flat device in the utility model embodiment；
Fig. 7 is the structural schematic diagram of workbench and laminating mechanism in Fig. 6；
Fig. 8 is top view when fixture and battery core cooperate in Fig. 6.
Appended drawing reference: battery core 100；Cathode screening glass 110；Positive screening glass 120；Positive strap 130；Negative straps
140；Negative lug 150；Positive pole ear 160；Handle 170；Fastener 180；Fixture 200；First limiting section 210；Clamping element
211；Elastic component 212；Limiting platform 213；First limited block 214；Second limited block 215；Elastic portion 216；Second limiting section
220；Location hole 230；Laminating mechanism 300；Flatten part 310；Regulating valve 320；Buffer 330；Lifting cylinder 340；Guide rod
350；Telescopic rod 360；Workbench 400；Push button panel 410；Control button 411；Positioning pin 420.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, rather than whole embodiments.Reality based on described the utility model
Example is applied, those skilled in the art's every other embodiment obtained belongs to scope of protection of the utility model.
Embodiment one
The present embodiment provides a kind of flattening method and pressuring flat device, battery core 100 is the battery core of lithium battery, and battery core 100 includes
Tab, tab are respectively positioned on the end of battery core 100, and screening glass is welded on the top of tab, and connection sheet is welded on the lower part of tab, often
The tab of a battery core 100 includes that positive pole ear 160 and negative lug 150 are correspondingly arranged one on each positive pole ear 160
A anode screening glass 120, a cathode screening glass 110 is arranged in each negative lug 150, connection sheet includes and opposite two
The positive strap 130 that the positive pole ear 160 of battery core 100 welds simultaneously, and the negative lug with two opposite battery cores 100
The negative straps 140 of 150 welding simultaneously.In the present embodiment, battery core 100 is not limited to the above structure.
In flattening method, first with device for ultrasonic welding, by the positive pole ear 160 of battery core 100 and positive screening glass 120
It welded, welded negative lug 150 and cathode screening glass 110, also by positive strap while welding screening glass
130 are welded on the lower section of positive pole ear 160, and negative straps 140 are welded on the lower section of negative lug 150.With to lithium battery just
For pole tab 160 and positive screening glass 130 carry out ultrasonic bonding, ultrasonic welding process parameter are as follows: 50 μ of ultrasonic amplitude
M, welding pressure 45psi, welding energy 500J, output power 4000W.With pressuring flat device by the screening glass of warpage after the completion of welding
It is flattened.The side circumference of positive screening glass 120 after the present embodiment pressing is more smooth, without obvious warpage.
In order to solve screening glass deformation, press mounting structure can also be increased on the protection sheet during ultrasonic bonding, kept away
Screening glass deforms during no-welding.
It uses the flattening method of the utility model embodiment that can reserve sufficient space for the subsequent bending of tab, reduces
The risk of scurrying out of tab in bending process.Moreover, using this method, moreover it is possible to reserve abundance around ultrasonic weld zones
Surplus then guarantees that subsequent welding tensile test is smooth.In addition, this method it is high-efficient, energy consumption less, it is economic and practical,
It need to only be increased newly after supersonic welding termination process and flatten station or equipment, without implementing big rule to original welding equipment or welding post
The transformation of mould complexity, implements to be simple and efficient.Lithium battery product excellent rate can be effectively improved, there is apparent market applying value.
Pressuring flat device used in the above method can select pressuring flat device including but not limited to as shown in Figures 2 to 7.
Specifically, pressuring flat device includes workbench 400, laminating mechanism 300 and fixture 200；Fixture 200 is mounted on workbench 400, folder
Tool 200 includes two the first limiting sections 210 being set side by side and the second limiting section between two the first limiting sections 210
220；A battery core 100 is respectively provided on each first limiting section 210, one end that tab is arranged in two battery cores 100 is mutually close, tab
The second limiting section 220 is extended to from the first limiting section 210.
Laminating mechanism 300 includes the pressing part 310 positioned at 200 top of fixture, and laminating mechanism 300 is not shown in Fig. 2.Such as figure
Shown in 3 and Fig. 4, workbench 400 wherein is not shown in Fig. 3 and Fig. 4.Part 310 is flattened to be oppositely arranged with the second limiting section 220；Pressure
Horizontal member 310 can be moved along first direction to flatten screening glass.First direction is specially the upper and lower of double-head arrow meaning in Fig. 3
To, flattening can contact when part 310 moves from up to down with the second limiting section 220 to flatten the screening glass of warpage, after pressing,
The bottom-up movement of part 310 is flattened, part 310 is flattened and the second limiting section 220 is detached from.Flattening part 310 ensure that in applanation process
Tab, screening glass and connection sheet keep smooth, flatten part 310 structure can there are many form, pressures as shown in Figure 3 and Figure 4
310 bottom of horizontal member is set there are four stabilizer blade, and the corresponding screening glass of each stabilizer blade flattens part 310 and include two as shown in Figure 6 and Figure 7
A stabilizer blade, each stabilizer blade are corresponding with two screening glass simultaneously.
Generally, laminating mechanism 300 further includes actuator and guide rod 350, and actuator includes telescopic rod 360, telescopic rod
360 and guide rod 350 with flatten part 310 and be connected, and guide rod 350 is parallel with telescopic rod 360.Guide rod 350 is used for pressure
The moving process of horizontal member 310 is oriented to.Actuator is driven by telescopic rod 360 flattens the up and down motion of part 310.Guide rod 350
It connects actuator and flattens part 310, actuator flattens part 310 by the drive of compression bar 350 and moves up and down, and actuator can choose liter
Sending down abnormally ascending cylinder or lifting cylinder 340.
As shown in Figures 2 to 4, the first limiting section 210 includes clamping element 211 and limiting platform 213, and clamping element 211 is installed
On limiting platform 213, battery core 100 is placed on limiting platform 213, for placing the position of battery core 100 on limiting platform 213
Adjustable section is in order to mounting and dismounting battery core 100.Specifically, being located at clamping element 211 can move in a second direction to incite somebody to action
Battery core 100 is clamped between clamping element 211 and the second limiting section 220.Second direction is specially the left and right of double-head arrow meaning in Fig. 2
Direction.Clamping element 211 realizes movement in left-right direction by elastic component 212, such as compressed spring.Specifically, such as Fig. 2 and Fig. 3
Shown, 212 one end of elastic component is fixed on limiting platform 213, and the other end of elastic component 212 is connected with clamping element 211.It can manage
Solution, in order to enable battery core 100 by the restoring force of elastic component 212 be fixed on clamping element 211 and the second limiting section 220 it
Between, clamping element 211 or elastic component 212 be not when by the original state of external force, between clamping element 211 and the second limiting section 220
Distance is less than the length of battery core 100, pulls clamping element 211 to the direction far from the second limiting section 220, increases 211 He of clamping element
The distance between second limiting section 220, can be such that battery core 100 is smoothly put into, and unclamp clamping element 211, and the elasticity by elastic component 212 is extensive
Multiple power influences, and battery core 100 can be clamped between clamping element 211 and the second limiting section 220.It, can when needing to dismantle battery core 100
Repeat aforesaid operations.
In the embodiments of the present invention, telescoping cylinder elasticity of substitution part 212 can also be used to realize the left and right of clamping element 211
Mobile, telescoping cylinder can be telescopic oil cylinder or telescopic cylinder.
In pressuring flat device in another optional implementation, adjust on limiting platform 213 for installing the position of battery core 100
Following manner realization can also be had by setting size: as shown in figure 5, each first limiting section 210 can be with respect to the second limiting section 220
It moves in left-right direction.As each first limiting section 210 passes through elastic portion 216 and its opposite second limiting section 220 of realization
Movement.Elastic portion 216 is between the first limiting section 210 and the second limiting section 220.
Specifically, as shown in figure 5, each first limiting section 210 includes the first limited block 214, the second limiting section 220 packet
The second opposite with two the first limited blocks 214 respectively limited block 215 is included, the first limited block 214 and the second limited block 215 are along a left side
Right direction setting, each first limited block 214 and the mutual cooperation of corresponding second limited block 215 can be at least right in left-right direction
Battery core 100 is limited.Battery core 100 can be installed by the cooperation of the first limited block 214 and corresponding second limited block 215
In the first limiting section 210.Specifically, when mobile to the direction far from the second limiting section 220 when the first limiting section 210, first
The distance between limited block 214 and the second limited block 215 increase, and battery core 100 can be freely put into the first limiting section 210, or
It is taken out out of first limiting section 210.When the first limiting section 210 is to close to the movement of the direction of the second limiting section 220, the first limit
The distance between block 214 and second limited block 215 reduce so that battery core 100 is clamped in the first limited block 214 and corresponding second
Between limited block 215.First limited block 214 and corresponding second limited block 215 can be cuboid, only can be from right and left
It is limited to battery core 100.If the first limiting section 210 sets the first limited block 214 there are two L-type, two of 100 side of battery core are straight
The arm of angle is matched with the first limited block 214 of corresponding L-type respectively, then the first limited block 214 and corresponding second limited block 215
Also the front-rear direction of battery core 100 can be positioned.
Battery core 100 is sandwiched in corresponding first limited block 214 and the second limited block by the elastic restoring force of elastic portion 216
Between 215.This process can be controlled by the fastener 180 being arranged on fixture.Specifically, elastic portion 216 does not generate bullet
Property deformation when, the distance between the first limited block 214 and corresponding second limited block 215 be equal to or less than battery core 100 size.
So that fastener 180 is in the second predeterminated position (i.e. fastener 180 is in the unlocked state), external force applied to the first limiting section 210,
The first limiting section 210 is such as pulled, makes the first limiting section 210 that the first limited block 214 be driven to move in left-right direction, the first limiting section
210 and second distance between limiting section 220 increase, battery core 100 can be put between the first limited block 214 and the second limited block 215,
The first limiting section 210 is unclamped, under the elastic restoring force effect of elastic portion 216, battery core 100 is fixed, at this time by fastener 180
It is placed into the first predeterminated position (i.e. fastener 180 is in the lock state), prevents opposite second limiting section of the first limiting section 210
220 movement guarantees the reliability fixed to battery core 100.When needing to remove battery core 100 from pedestal, by fastener 180
It is placed into the second predeterminated position again, pulls the first limiting section 210 far from the second limiting section 220, adjusts 214 He of the first limited block
The distance between second limited block 215, battery core 100 can be taken off, repeatedly.
In order to facilitate the first limiting section 210 is adjusted, handle 170, each first limiting section 210 can also be set on fixture
On be respectively mounted handle 170.The first limiting section 210 is pulled to be moved relative to the second limiting section 220 by handle 170, user
Just.
In pressuring flat device in another optional implementation, as shown in Figure 6 to 8, pressuring flat device further includes two fixed
Position pin 420, positioning pin 420 are mounted on workbench 400, and fixture 200 is equipped with to be positioned with positioning pin 420 one-to-one two
Hole 230, specifically, location hole 230 can be set on the first limiting section 210.Each positioning pin 420 is arranged in corresponding fixed
Position hole 230.To be equipped with after battery core 100 is mounted on fixture 200, using positioning pin 420 and location hole 230 to fixture 200 into
Row positioning, so that the second limiting section 220 and screening glass and pressing part 310 are opposite.The quantity of positioning pin 420 and location hole 230 can
It is adjusted as needed, not as the limitation to the utility model embodiment.Further include on pressuring flat device push button panel 410,
Control button 411, regulating valve 320 and buffer 330, regulating valve 320 and buffer 330 are electrically connected with pressing part 310 indirectly
Connect, regulating valve 320 be used for control flatten part 310 raising and lowering, buffer 330 be used for buffer pressing part 310 rising or
Decrease speed.Push button panel 410 is mounted on workbench 400, and push button panel 410 can be used for installing control button 411 to control
Pressuring flat device such as opens or closes at the operation.
Embodiment two
The present embodiment provides another flattening methods, first with device for ultrasonic welding, by 100 positive pole ear 160 of battery core
It welded with positive screening glass 120, welded negative lug 150 and cathode screening glass 110, to lithium battery anode pole
For ear 160 and positive screening glass 130 carry out ultrasonic bonding, ultrasonic welding process parameter are as follows: 30 μm of ultrasonic amplitude, weldering
Meet pressure 40psi, welding energy 700J, output power 4500W.The screening glass of warpage is carried out with pressuring flat device after the completion of welding
It flattens.Pressuring flat device is identical as pressuring flat device in embodiment one in the present embodiment.
Comparative example one
100 positive pole ear 160 of battery core is welded with positive screening glass 120 merely with ultrasonic equipment, by cathode pole
Ear 150 and cathode screening glass 110 are welded, no applanation process, to positive pole ear of lithium battery 160 and positive screening glass 130
For carrying out ultrasonic bonding, ultrasonic welding process parameter are as follows: 50 μm of ultrasonic amplitude, welding pressure 45psi, welding energy
500J, output power 4000W.There is obvious warpage in positive screening glass side week without pressing operation in this comparative example.
Comparative example two
100 positive pole ear 160 of battery core is welded with positive screening glass 120 merely with ultrasonic equipment, by cathode pole
Ear 150 and cathode screening glass 110 are welded, no applanation process, to positive pole ear of lithium battery 160 and positive screening glass 130
For carrying out ultrasonic bonding, ultrasonic welding process parameter are as follows: 30 μm of ultrasonic amplitude, welding pressure 40psi, welding energy
700J, output power 4500W.
For the deformation effect of each screening glass in comparative example one, embodiment two, comparative example one and comparative example two, use
Slide calliper rule measure the deflection of screening glass 120 positive in embodiment one, embodiment two, comparative example one and comparative example two, become
Shape amount H refers to: vertical range when screening glass is horizontally arranged, between the highest point and horizontal line of side circumferential portion warpage.
The deflection of positive screening glass 120 is 0.41mm in the utility model embodiment one, anode protection in embodiment two
The deflection of piece 120 is 0.30mm, and the deflection of positive screening glass 120 is 2.5mm in comparative example one, and anode is protected in comparative example two
The deflection of bluff piece 120 is 2.07mm.
By comparison it can be found that comparative example two changes ultrasonic welding process parameter, be only capable of relative to comparative example one
Reduce the deflection of positive screening glass 120 to a certain extent, deflection is still up to 2mm or more, the area can not be effectively reduced
Adhesive tape and coating are hurt in domain, to cause the risk of battery short circuit.In addition to this, severely deformed in comparative example one and comparative example two
Positive screening glass 120 can largely occupy tab bending space, then subsequent tab bending process is caused greatly to hinder, sternly
Can even tab be caused to scurry out when weight.In addition, it is smaller to operate surplus in one and comparative example two around welding region, after will lead to
It is continuous to be difficult to carry out welding tensile test.
By embodiment one and embodiment two it can be found that being flattened using pressuring flat device after supersonic welding to screening glass
Operation, reduces deformation, the warpage defect of screening glass more significantly.The finished screening glass of pressuring flat device after supersonic welding,
Its surface smoothness, which has, to be extremely obviously improved, can be completely by the control of its maximum deformation quantity within 0.5mm, to obviously drop
Low subsequent battery core closes the risk that screening glass warpage during core punctures coating, effectively avoids battery short circuit, improves product excellent rate.
In addition, can obtain large stretch of smooth, broad weldering using pressuring flat device after supersonic welding prints region, thus for tab bending technique and
Subsequent welding tensile test has reserved sufficient machining allowance.
According to the other structures of the pressuring flat device of the utility model embodiment and ultrasonic welding method and operation for this
All it is to be understood that and easy to accomplish for the technical staff of field, therefore is not described in detail.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (6)
1. a kind of pressuring flat device of screening glass, which is characterized in that the pressuring flat device includes workbench, laminating mechanism and fixture；
The fixture is installed on the workbench, and the fixture includes two and is respectively used to the first limiting section of positioning battery core and is used for
Positioning is located at the tab of the battery core end and the second limiting section of the screening glass, and second limiting section is located at described in two
Between first limiting section；The laminating mechanism includes the pressing part above the fixture, the pressing part and described second
Limiting section is oppositely arranged；The pressing part can be moved along first direction to flatten the screening glass.
2. pressuring flat device according to claim 1, which is characterized in that first limiting section includes clamping element and for pacifying
The limiting platform of the battery core is filled, the clamping element is mounted on the limiting platform, and the clamping element can be in a second direction
Movement is the battery core to be fixed between the clamping element and second limiting section.
3. pressuring flat device according to claim 2, which is characterized in that first limiting section further includes elastic component, described
Elastic component one end is fixed on the limiting platform, and the other end of the elastic component is connected with the clamping element.
4. pressuring flat device according to claim 2, which is characterized in that first limiting section further includes telescoping cylinder, described
Telescoping cylinder one end is fixed on the limiting platform, and the other end of the telescoping cylinder is connected with the clamping element.
5. pressuring flat device according to claim 1, which is characterized in that the pressuring flat device further includes at least two positioning
Pin, the positioning pin are installed on the workbench, and the fixture is equipped with location hole corresponding with the positioning pin, Mei Gesuo
It states positioning pin and is arranged in the corresponding location hole.
6. pressuring flat device according to claim 1, which is characterized in that the laminating mechanism further includes actuator and guiding
Bar, the actuator include telescopic rod, and the telescopic rod and the guide rod are connected with the pressing part, and the guide rod
It is parallel with the telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548674.5U CN208879383U (en) | 2018-09-20 | 2018-09-20 | A kind of pressuring flat device of screening glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548674.5U CN208879383U (en) | 2018-09-20 | 2018-09-20 | A kind of pressuring flat device of screening glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208879383U true CN208879383U (en) | 2019-05-21 |
Family
ID=66513410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821548674.5U Expired - Fee Related CN208879383U (en) | 2018-09-20 | 2018-09-20 | A kind of pressuring flat device of screening glass |
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| Country | Link |
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| CN (1) | CN208879383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175001A (en) * | 2018-09-20 | 2019-01-11 | 中兴高能技术有限责任公司 | A kind of pressuring flat device and method of screening glass |
| CN110421021A (en) * | 2019-08-09 | 2019-11-08 | 台州弘锐精密机械有限公司 | A kind of sheet metal processing and forming mold |
-
2018
- 2018-09-20 CN CN201821548674.5U patent/CN208879383U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175001A (en) * | 2018-09-20 | 2019-01-11 | 中兴高能技术有限责任公司 | A kind of pressuring flat device and method of screening glass |
| CN110421021A (en) * | 2019-08-09 | 2019-11-08 | 台州弘锐精密机械有限公司 | A kind of sheet metal processing and forming mold |
| CN110421021B (en) * | 2019-08-09 | 2020-06-30 | 南通市金山货架有限公司 | Sheet metal forming mold |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |