CN209103985U - A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine - Google Patents
A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine Download PDFInfo
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- CN209103985U CN209103985U CN201822230597.5U CN201822230597U CN209103985U CN 209103985 U CN209103985 U CN 209103985U CN 201822230597 U CN201822230597 U CN 201822230597U CN 209103985 U CN209103985 U CN 209103985U
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Abstract
The utility model discloses a kind of disk of material set and positioning mechanisms of thin-film capacitor winding machine, belong to thin-film capacitor winding machine field.A kind of disk of material set and positioning mechanism of the thin-film capacitor winding machine of the utility model, including be capable of clamping disk of material clamping head, with the coaxially connected rotary core shaft of clamping head, the outer shaft that is sheathed on the outside of rotary core shaft and rotary drive mechanism for driving rotary core shaft rotary motion, outer shaft is fixedly installed with the positioning mechanism for locator material disk, the push-pull mechanism that clamping head is also moved axially and resetted with respect to the inside short distance of positioning mechanism close to the side of clamping head.The utility model enhances the location accuracy of disk of material installation by positioning mechanism; and under the action of push-pull mechanism; disk of material and positioning mechanism keep certain interval; the metal film in disk of material is avoided to scratch between positioning mechanism when rotated impaired; the metal film in disk of material is protected, has many advantages, such as that positioning is simple accurately, retractable volume is reliable and stable.
Description
Technical field
The utility model relates to thin-film capacitor winding machine fields, more specifically to a kind of thin-film capacitor winding machine
Disk of material set and positioning mechanism.
Background technique
Thin film capacitor is to work as electrode with metal foil, by itself and poly- ethyl ester, polypropylene, the modeling such as polystyrene or polycarbonate
Expect film, after the overlapping of both ends, is wound into the capacitor of cylindric construction.And it is hereinafter referred to as according to the type of plastic film
Poly- ethyl ester capacitor (also known as Mylar capacitor), polypropylene capactive (also known as PP capacitor), polystyrene capacitor (also known as PS capacitor) and poly-
Carbonic acid capacitor.
Currently, all producing thin film capacitor using semiautomatic equipment in the market, which is referred to as up- coiler, rolls up
Tray device in machine for folding and unfolding strip includes material dish axle, disk of material and the motor for driving material Shaft rotation, material
Disk is set in material dish axle and rotates in a circumferential direction with material dish axle, and the reel for being wound with strip is set on disk of material axis, reel
One end is close to disk of material, and the other end is compressed by the movable holddown being set in material dish axle.Although above-mentioned tray device energy
Reel, is set on disk of material axis, between the inner wall and material dish axle of reel by the effect for enough realizing folding and unfolding strip for convenience
There is gap, reel is caused with run-off the straight when folding and unfolding strip, to influence the quality of finished product during the installation process, or even produces and criticize
The defective products of amount, and the length of reel too long will affect stability and work quality.
To solve the above-mentioned problems, related technical personnel are made that some improvement, such as Chinese Patent Application No.
201810411719.2, data of publication of application is on August 24th, 2018, invention and created name are as follows: the tray device in up- coiler, it should
Application case is related to the tray device in a kind of up- coiler, including jack, regulating mechanism, guiding mechanism, motor board and vertical
Datum plate, jack can rotate, and be vertically mounted on datum plate；Jack is fixedly connected with motor board, is adjusted
Section mechanism includes rotating handle and adjusting rod, and one end of rotating handle passes through datum plate and is fixedly connected with adjusting rod, adjusting rod and
Motor board is threadedly coupled, and guiding mechanism includes linear guide and straight line set, and straight line set is fixedly connected on motor board, linear guide
One end be fixedly connected with datum plate, the other end be plugged in straight line set in.This application utilizes the gear being fixed on jack
Plate (call in its specification is " disk of material ") positions reel, and is pushed using adjusting nut and pull out axis realization
Reel tensioner is fixed, and position of the reel relative to datum plate is adjusted using regulating mechanism, can be to reel using this structure
Effective position and clamping are carried out, but clamping process needs to manually tighten adjusting nut, it is cumbersome, and clamping stability is poor；
And the weight of rotating part is increased, so that rotary shaft be easy to cause to revolve with jack rotary motion using baffle
Turn to shake, reduces retractable volume stability.
Summary of the invention
1. utility model technical problems to be solved
The purpose of the utility model is to overcome existing up- coiler disk of material clamping mechanism, that there are job stabilitys is poor, dress
The deficiencies of bit manipulation is cumbersome is clamped, a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine is provided, it is practical using this
Novel technical solution, datum level when by positioning mechanism as disk of material clamping, while using clamping head in push-pull mechanism
It moves under effect relative to the short distance axial stretching of positioning mechanism, can divide with positioning mechanism after making disk of material positioning and clamping
From, it avoids the metal film in disk of material from scratching between positioning mechanism when rotated impaired, protects the metal film in disk of material,
Have many advantages, such as that positioning is simple accurately, retractable volume is reliable and stable；Also, center pull rod is pulled to realize clamping using push-pull mechanism
Head is to the tensioner of disk of material, and compact-sized, clamping is reliable and stable.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model are as follows:
A kind of disk of material set and positioning mechanism of the thin-film capacitor winding machine of the utility model, including being capable of clamping disk of material
Clamping head, with the coaxially connected rotary core shaft of clamping head, the outer shaft that is sheathed on the outside of rotary core shaft and for driving rotation
The rotary drive mechanism of mandrel rotary motion, the outer shaft are fixedly installed with close to the side of clamping head for locator material
The positioning mechanism of disk, the clamping head is also moved axially with respect to the inside short distance of positioning mechanism and what is resetted pushes away
Drawing mechanism.
Further, the positioning mechanism includes several locating supports, and the locating support is fixed on outer shaft
On, having on the locating support can be with the locating piece of disk of material side location fit.
Further, the locating piece has an adjusting rod, which is installed on positioning by adjusting rod screw thread
On bracket.
Further, the locating piece and the contact surface of disk of material are arc surface.
Further, the clamping head includes the matrix being made of front end body, intermediate and rear end element and is installed on
The intracorporal tensioner component of base, the matrix is sheathed in rotary core shaft, and can be axially slid relative in rotary core shaft；Institute
The tensioner component stated includes pushing away to pull out axis, packing, jacking block, center pull rod and push-and-pull end cap, and described pushing away pulls out axle sleeve set on rotary core
On axis, the packing, which is set to, to be pushed away the outside for pulling out axis and pulls out conical surface of shaft cooperation with pushing away, and the jacking block is fixed on packing, and position
In in the jacking block hole of intermediate, the center pull rod is arranged in the centre bore of rotary core shaft, and the front end peace of center pull rod
Equipped with push-and-pull end cap, the push-and-pull end cap is equipped with and pushes away the push rod for pulling out axis and offseting, the push-and-pull end cap and front end body it
Between be additionally provided with the first spring, described pushing away, which is pulled out, is additionally provided with second spring between axis and rear end element.
Further, the rear end of the center pull rod is connected after being pierced by rotary core shaft with push-pull mechanism, described
Push-pull mechanism includes push-and-pull cylinder and the pull rod attachment base that is installed on push-and-pull cylinder piston rod, and the pull rod attachment base is
" Kan " shape is respectively equipped with an idler wheel, the axis of the idler wheel and center on two opposite support arms of pull rod attachment base
The axis perpendicular of pull rod, the rear end end of the center pull rod also have the attachment base matched with above-mentioned rollers.
Further, the rear end end of the rotary core shaft is equipped with synchronous pulley, and rotary core shaft passes through synchronous belt machine
Structure and driving motor are sequentially connected.
3. beneficial effect
It is had the following beneficial effects: compared with existing well-known technique using technical solution provided by the utility model
(1) the disk of material set and positioning mechanism of a kind of thin-film capacitor winding machine of the utility model, in the outer shaft of clamping head
The positioning mechanism being equipped with for locator material disk is put on, and clamping head can be under push-pull mechanism effect relative to positioning mechanism
Inside short distance is moved axially and is resetted, datum level when by positioning mechanism as disk of material clamping, while utilizing push-and-pull machine
Structure can separate after making disk of material positioning and clamping with positioning mechanism, avoid metal film in disk of material when rotated with positioning mechanism
Between scratch impaired, protect the metal film in disk of material, and have positioning it is simple it is accurate, that retractable volume is reliable and stable etc. is excellent
Point；
(2) a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine of the utility model, locating piece pass through tune
Pole is threadedly coupled with locating support, and datum level when convenient for disk of material clamping is adjusted, and use is more flexible and convenient；And
And locating piece and the contact surface of disk of material use arc surface, convenient for, against positioning, improving accurate positioning with material disc side
Property；
(3) the disk of material set and positioning mechanism of a kind of thin-film capacitor winding machine of the utility model, the setting of tensioner component
In matrix, and center pull rod pull when convenient material disk installation, the first spring and second spring can pacify in disk of material
It is resetted rapidly after the completion of dress, shortens the set-up time of disk of material, improve disk of material clamping efficiency；
(4) the disk of material set and positioning mechanism of a kind of thin-film capacitor winding machine of the utility model utilizes push-pull mechanism
Center pull rod is pulled to realize clamping head to the tensioner of disk of material, dress chuck structure design is simple and compact, clamping and spin stabilization
Reliably.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the disk of material set and positioning mechanism of thin-film capacitor winding machine of the utility model；
Fig. 2 is a kind of side view of the disk of material set and positioning mechanism of thin-film capacitor winding machine of the utility model；
Fig. 3 is a kind of cuing open for the clamping device of the disk of material set and positioning mechanism of thin-film capacitor winding machine of the utility model
View.
Label declaration in schematic diagram:
1, locating support；2, locating piece；3, outer shaft；4, push-and-pull cylinder；5, jacking block；6, end cap is pushed and pulled；6a, push rod；7,
Synchronous pulley；8, pull rod attachment base；9, fixed bracket；10, center pull rod；11, rotary core shaft；12, front end body；13, rear end element；
14, lantern ring；A, clamping head；B1, it pushes away and pulls out axis；B2, packing；B3, the first spring；B4, second spring.
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
In conjunction with shown in Fig. 1 to Fig. 3, a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine of the present embodiment, packet
It includes the clamping head A for capableing of clamping disk of material and clamping head A coaxially connected rotary core shaft 11, be sheathed on 11 outside of rotary core shaft
Outer shaft 3 and rotary drive mechanism for driving 11 rotary motion of rotary core shaft, lead between rotary core shaft 11 and outer shaft 3
Bearing connection is crossed, rotary drive mechanism can be driven clamping head A rotation by rotary core shaft 11, be clamped in clamping head to drive
Material disc spins on A, realize the retractable volume of metal film.Outer shaft 3 is fixedly installed with close to the side of clamping head A for positioning
The positioning mechanism of disk of material, clamping head A is also moved axially with respect to the inside short distance of positioning mechanism and what is resetted pushes away
Drawing mechanism.In use, push-pull mechanism drives clamping head A to move axially to the short distance of positioning mechanism direction, then by disk of material set
Loaded on clamping head A, and will be on the inside of disk of material and positioning mechanism is against benchmark when by positioning mechanism as disk of material clamping
The determination of disk of material position is realized in face, and to disk of material progress clamping, while resets clamping head A outward using push-pull mechanism,
Can be separated with positioning mechanism after making disk of material positioning and clamping, avoid metal film in disk of material when rotated with positioning mechanism it
Between scratch impaired, protect the metal film in disk of material；And it is simple accurate to position, and due to positioning on clamping head A without additional
Component increases rotatory inertia, keeps clamping head A retractable volume more reliable and more stable.
Further, in conjunction with shown in Fig. 1 to Fig. 3, in the present embodiment, positioning mechanism includes several locating supports 1, positioning
Bracket 1 is fixed on outer shaft 3, and having on locating support 1 can be with the locating piece 2 of disk of material side location fit.In order to just
In adjusting, it is preferable that be equipped with an adjusting rod on locating piece 2, which is installed on locating support 1 by adjusting rod screw thread
On, datum level when convenient for disk of material clamping is adjusted, and use is more flexible and convenient.As shown in Figure 2, it is preferable that positioning
There are three bracket 1 is set, these three locating supports 1 are circumferential to be evenly distributed on outer shaft 3, using three-point fix structure, to material
The positioning of disk is more accurate.Locating piece 2 can be adjustable nut, be threaded on locating support 1 by adjusting rod, Mei Geding
It is preferably threadedly coupled on the bracket 1 of position there are two adjustable nut, the disk of material that outer adjustable nut can be used for being relatively large in diameter unreels
Positioning, inner adjustable nut can be used for the reel winding positioning of disk of material.In addition, above-mentioned locating piece 2 and disk of material connect
Contacting surface is preferably arc surface, convenient for, against positioning, improving positioning accuracy with material disc side.
Shown in Figure 3, the clamping head A in the present embodiment includes being made of front end body 12, intermediate and rear end element 13
Matrix and it being installed on the intracorporal tensioner component of base, front end body 12, intermediate and rear end element 13 are fixedly connected sequentially to form matrix, and
The space for installing tensioner component is formed in matrix, matrix is sheathed in rotary core shaft 11, and can be in rotary core shaft 11
On axially slide relative, and can realize the transmitting of turning moment；Tensioner component includes pushing away to pull out axis B1, packing B2, jacking block 5, center
Pull rod 10 and push-and-pull end cap 6,5 upper surface of jacking block have undaform protrusion, increase the clamping power to disk of material, also can be to material
The concentricity of charging tray plays adjustment effect；It pushes away and pulls out axis B1 and be sheathed in rotary core shaft 11, push away and pull out axis B1 as cone, packing B2 is set
In pushing away the outside for pulling out axis B1 and pulling out axis B1 cone match with pushing away, it is additionally provided with lantern ring 14 between packing B2 and front end body 12, is used for
Packing B2 is positioned, jacking block 5 is fixed on packing B2, and is located in the jacking block hole of intermediate, and packing B2 preferably has three pieces,
And three pieces of packing B2 are pulled out on axis B1 by elastic ring cuff pushing away, and are had a jacking block 5 on every piece of packing B2, are improved disk of material
Clamping stability.Center pull rod 10 is arranged in the centre bore of rotary core shaft 11, and center pull rod 10 can lead to rotary core shaft 11
Axle sleeve connection is crossed, and the front end of center pull rod 10 is equipped with push-and-pull end cap 6, bolt can be used in center pull rod 10 and push-and-pull end cap 6
Connection, push-and-pull end cap 6 are equipped with and push away the push rod 6a for pulling out axis B1 and offseting, push and pull and be additionally provided with first between end cap 6 and front end body 12
Spring B 3 pushes away to pull out that second spring B4 is additionally provided between axis B1 and rear end element 13.It can band by the push-and-pull campaign of center pull rod 10
Dynamic jacking block 5 is ejected or is retracted in the jacking block hole of intermediate.As shown in Figure 1, the rear end of center pull rod 10 is pierced by rotary core shaft 11
It is connected afterwards with push-pull mechanism, push-pull mechanism includes push-and-pull cylinder 4 and the pull rod attachment base that is installed on 4 piston rod of push-and-pull cylinder
8, pull rod attachment base 8 is " Kan " shape, is respectively equipped with an idler wheel on two opposite support arms of pull rod attachment base 8, idler wheel
The axis perpendicular of axis and center pull rod 10, the rear end end of center pull rod 10 also have the connection matched with above-mentioned rollers
Rolling bearing can be used in seat, idler wheel, rotates more stable.Using above-mentioned pull rod attachment base 8, center pull rod 10 can pulled
Ibid, guarantee 10 normal rotational movement of center pull rod.It can be fixed by fixed bracket 9 in 4 two sides of push-and-pull cylinder.It is above-mentioned
Clamping head A structure design it is simple and compact, clamping and spin stabilization are reliable.
A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine of the present embodiment, when work, push-and-pull cylinder 4 is driven
Center pull rod 10 moves back, push-and-pull end cap 6 can move backward therewith, and then push and pull end cap 6 on push rod 6a drive push away pull out axis B1 to
After move, packing B2 pulls out the axis B1 conical surface and moves down along pushing away pushing away to pull out during axis B1 is moved back, so that jacking block 5 will be retracted centre
In the jacking block hole of body, the first spring B 3 and second spring B4 are compressed at this time, while under the effect of push-and-pull cylinder 4, entire clamping
Head A also can retreat certain distance to positioning mechanism direction, disk of material can be packed into clamping head A at this time, and by disk of material and determine
Position mechanism contacts；Then, push-and-pull cylinder 4 drives center pull rod 10 to move forward, and center pull rod 10 drives the push rod 6a on push-and-pull end cap 6
It moves forward, is pushed away under the action of the first spring B 3 and second spring B4 pull out axis B1 resetting movement forward at this time, thus by jacking block 5
Ejection outward, disk of material is fixed；Push-and-pull cylinder 4 moves forward later, push rod 6a and pushes away and pulls out the end that axis B1 offsets
Part pulls front end body 12 to move forward, and then entire clamping head A is driven to move forward certain distance together with disk of material, makes material
Disk and positioning mechanism keep certain interval.Rotary core shaft 11 is sequentially connected by synchronous belt mechanism and driving motor, utilizes driving
Motor can drive clamping head A to rotate, and carry out the winding of film.
The disk of material set and positioning mechanism of a kind of thin-film capacitor winding machine of the utility model, by positioning mechanism as material
Datum level when charging tray clamping, while axially being stretched using short distance of the clamping head under push-pull mechanism effect relative to positioning mechanism
Contracting movement, can separate after making disk of material positioning and clamping with positioning mechanism, avoid metal film in disk of material when rotated and fixed
Scratch between the mechanism of position impaired, protect the metal film in disk of material, have positioning it is simple it is accurate, that retractable volume is reliable and stable etc. is excellent
Point；Also, center pull rod is pulled using push-pull mechanism to realize clamping head to the tensioner of disk of material, compact-sized, clamping is stablized
Reliably.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, without creatively designing
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (7)
1. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine, including be capable of clamping disk of material clamping head (A), with
The coaxially connected rotary core shaft (11) of clamping head (A), the outer shaft (3) being sheathed on the outside of rotary core shaft (11) and for drive rotation
The rotary drive mechanism of core axis (11) rotary motion, it is characterised in that: the one of the outer shaft (3) close clamping head (A)
Side is fixedly installed with the positioning mechanism for locator material disk, and the clamping head (A) is also with respect to positioning mechanism
The push-pull mechanism that inside short distance is moved axially and resetted.
2. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 1, it is characterised in that: institute
The positioning mechanism stated includes several locating supports (1), and the locating support (1) is fixed on outer shaft (3), the positioning
Having on bracket (1) can be with the locating piece (2) of disk of material side location fit.
3. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 2, it is characterised in that: institute
The locating piece (2) stated has an adjusting rod, which is installed on locating support (1) by adjusting rod screw thread.
4. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 3, it is characterised in that: institute
The contact surface of the locating piece (2) and disk of material stated is arc surface.
5. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 1 or 2 or 3, feature
Be: the clamping head (A) includes the matrix being made of front end body (12), intermediate and rear end element (13) and is installed on matrix
Interior tensioner component, the matrix are sheathed on rotary core shaft (11), and can be slided to axial on rotary core shaft (11)
It is dynamic；The tensioner component includes pushing away to pull out axis (B1), packing (B2), jacking block (5), center pull rod (10) and push-and-pull end cap (6), institute
Pushing away of stating is pulled out axis (B1) and is sheathed on rotary core shaft (11), and the packing (B2) is set to and pushes away the outside for pulling out axis (B1) and pull out with pushing away
Axis (B1) cone match, the jacking block (5) are fixed on packing (B2), and be located at intermediate jacking block hole in, it is described in
Heart pull rod (10) is arranged in the centre bore of rotary core shaft (11), and the front end of center pull rod (10) is equipped with push-and-pull end cap (6),
The push-and-pull end cap (6) is equipped with and pushes away the push rod (6a) for pulling out axis (B1) and offseting, the push-and-pull end cap (6) and front end body
(12) it is additionally provided between the first spring (B3), described pushing away pulls out and be additionally provided with second spring between axis (B1) and rear end element (13)
(B4)。
6. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 5, it is characterised in that: institute
The rear end for the center pull rod (10) stated is pierced by rotary core shaft (11) and is connected afterwards with push-pull mechanism, and the push-pull mechanism includes pushing away
The pull rod attachment base (8) for drawing cylinder (4) and being installed on push-and-pull cylinder (4) piston rod, the pull rod attachment base (8) are " Qian "
Shape, is respectively equipped with an idler wheel on two opposite support arms of pull rod attachment base (8), and the axis of the idler wheel and center are drawn
The rear end end of the axis perpendicular of bar (10), the center pull rod (10) also has the connection matched with above-mentioned rollers
Seat.
7. a kind of disk of material set and positioning mechanism of thin-film capacitor winding machine according to claim 6, it is characterised in that: institute
The rear end end for the rotary core shaft (11) stated is equipped with synchronous pulley (7), and rotary core shaft (11) passes through synchronous belt mechanism and driving electricity
Machine transmission connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230597.5U CN209103985U (en) | 2018-12-28 | 2018-12-28 | A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230597.5U CN209103985U (en) | 2018-12-28 | 2018-12-28 | A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine |
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| Publication Number | Publication Date |
|---|---|
| CN209103985U true CN209103985U (en) | 2019-07-12 |
Family
ID=67163512
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822230597.5U Active CN209103985U (en) | 2018-12-28 | 2018-12-28 | A kind of disk of material set and positioning mechanism of thin-film capacitor winding machine |
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| CN (1) | CN209103985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834987A (en) * | 2019-12-09 | 2020-02-25 | 常州联威自动化设备有限公司 | Automatic tensioning mechanism of film roll with position adjusting function |
| CN114823172A (en) * | 2022-04-07 | 2022-07-29 | 铜陵市新洲电子科技有限责任公司 | Winding equipment and winding method of multilayer composite capacitor |
-
2018
- 2018-12-28 CN CN201822230597.5U patent/CN209103985U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834987A (en) * | 2019-12-09 | 2020-02-25 | 常州联威自动化设备有限公司 | Automatic tensioning mechanism of film roll with position adjusting function |
| CN114823172A (en) * | 2022-04-07 | 2022-07-29 | 铜陵市新洲电子科技有限责任公司 | Winding equipment and winding method of multilayer composite capacitor |
| CN114823172B (en) * | 2022-04-07 | 2023-06-13 | 铜陵市新洲电子科技有限责任公司 | Winding device and winding method for multilayer composite capacitor |
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Address after: 213000 No.1 Shengye Road, Baizhang Industrial Park, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Shengwei Electromechanical Co.,Ltd. Address before: 213000 No.1 Shengye Road, Baizhang Industrial Park, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU SAVY MACHINE CO.,LTD. |
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