CN110760836A

CN110760836A - Metal spraying device for thin film capacitor

Info

Publication number: CN110760836A
Application number: CN201910845775.1A
Authority: CN
Inventors: 王金兵
Original assignee: Anhui Safe Electronics Co Ltd
Current assignee: Anhui Safe Electronics Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-02-07

Abstract

The invention discloses a metal spraying device for a film capacitor, which comprises a rotary table, rotary seats, a friction piece and a metal spraying machine, wherein the rotary table rotates around a central shaft, the rotary seats are uniformly distributed on the circumferential edge of the rotary table at intervals, the bottom of each rotary seat is rotationally connected with the rotary table through a bearing, a containing groove for a winding element is arranged at the top of each rotary seat, the friction piece is fixedly arranged on the outer side of the circumference of the rotary table, the friction surface of the friction piece is in contact with the side wall of each rotary seat to enable the rotary seats to rotate through static friction force, the metal spraying machine is fixedly arranged above the rotary table in a suspended mode, and the metal spraying width of the metal spraying machine on the end face of the winding element is smaller than the. The metal spraying device can not only meet the requirement that the winding elements rotate to finish metal spraying and reduce the waste of metal powder, but also greatly increase the number of the winding elements to be sprayed with metal and improve the overall metal spraying efficiency; and simple structure, it is convenient to control, low in manufacturing cost and be convenient for maintain the maintenance.

Description

Metal spraying device for thin film capacitor

Technical Field

The invention belongs to the technical field of capacitors, and particularly relates to a metal spraying device for a thin film capacitor.

Background

In order to lead out the electrodes, the winding element of the low-voltage parallel self-healing capacitor needs to be sprayed with metal powder, which is called metal spraying, on the end surface before assembly. In the technical field of metal spraying of capacitors, the method is always dedicated to reducing the waste of metal powder in the metal spraying process and improving the actual utilization efficiency of the metal powder.

The application document with the application number of CN201420014232.8 discloses a metal spraying system, in which a rotating device drives two winding elements to rotate in opposite directions, and the width of metal spraying on the winding elements by a metal spraying machine port is controlled to reduce the waste of metal powder. However, such metal spraying system needs to be provided with an independent rotating device to drive the winding elements to rotate, has complex structure, multiple parts and high cost, is not beneficial to maintenance, can only be provided with two winding elements in the system to spray metal, can only spray metal for the two winding elements once, and has low metal spraying efficiency.

Disclosure of Invention

The invention provides a metal spraying device for a thin film capacitor, aiming at the problems in the prior art.

The invention solves the technical problems through the following technical means:

the utility model provides a film capacitor metal spraying device, includes the carousel, rotates seat, friction piece and metal spraying machine, the carousel rotates the center pin rotation, rotate the even interval distribution of seat on the circumferential edge reason of carousel, it passes through the bearing rotation with the carousel to rotate the seat bottom and is connected, the top of rotating the seat is equipped with the holding tank of winding component, friction piece fixed mounting is in the circumference outside of carousel, just the friction surface of friction piece makes through static friction power with the lateral wall contact of rotating the seat and rotates the seat and rotate, the unsettled fixed mounting of metal spraying machine is in the carousel top, the metal spraying mouth of metal spraying machine is located the circular motion orbit of rotating the seat, just the metal spraying width of metal spraying machine on the winding component terminal surface is less than the terminal surface diameter of winding component.

Furthermore, the friction surface of the friction piece is a sawtooth surface, and the side wall of the rotating seat is also provided with a corresponding sawtooth surface at the position which is equal to the friction surface of the friction piece in height.

Further, a gap is formed between every two adjacent rotating seats.

Furthermore, the metal spraying width of the metal spraying machine on the end face of the winding element is smaller than the end face radius of the winding element and larger than one third of the end face diameter of the winding element.

Furthermore, the opposite two sides of the side wall of the rotating seat are provided with clamping arms, the lower ends of the clamping arms are rotatably connected with the rotating seat, the upper ends of the clamping arms are provided with semi-arc-shaped hoops, the two clamping arms rotate upwards to form a circular clamping ring to clamp and fix the winding element, and the two hoops are embedded and fixed.

Further, the centre gripping arm includes fixed arm and digging arm, the lower extreme of fixed arm rotates with the roating seat to be connected, the upper end and the staple bolt of digging arm are fixed, the digging arm slides and sets up in the fixed arm, the fixed arm is pressed close to and is equipped with the caulking groove with the digging arm adaptation on the lateral wall of roating seat, be equipped with the spout that sets up with the caulking groove syntropy on the both sides wall of caulking groove, the one end that the staple bolt was kept away from to the digging arm is equipped with the cylindrical slider that slides and set up in the caulking groove, be equipped with the spacing groove of fixed arm along fixed arm length direction evenly distributed on the notch lateral wall of caulking groove, be equipped with the stopper with the spacing groove block on the.

The invention has the beneficial effects that:

(1) the turntable is adopted to bear the winding elements, and through the matching of the turntable, the rotating seat and the friction piece, the metal spraying can be completed when the winding elements rotate, the waste of metal powder is reduced, meanwhile, the number of the winding elements to be sprayed with metal is greatly increased, the number of times for replacing the winding elements is reduced, and the overall metal spraying efficiency is improved;

(2) simple structure, control is convenient, low in manufacturing cost and be convenient for maintain the maintenance.

Drawings

FIG. 1 is a schematic diagram of the metal spraying principle of the metal spraying device for the thin film capacitor of the present invention;

FIG. 2 is a schematic view of the whole structure of the metal spraying device of the thin film capacitor of the present invention;

FIG. 3 is an exploded view of the clamp arm of the present invention;

FIG. 4 is a schematic view of the assembly of the clamp arm and the rotating base of the present invention;

fig. 5 is a schematic view of the fitting and fixing of the hoop according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in FIG. 2, a metal spraying device for a film capacitor comprises a rotary table 10, a rotary base 11, a friction piece 12 and a metal spraying machine 13, the rotating disc 10 rotates around the central axis, the rotating seats 11 are evenly distributed on the circumferential edge of the rotating disc 10 at intervals, the bottom of the rotating seat 11 is rotatably connected with the turntable 10 through a bearing, the top of the rotating seat 11 is provided with a receiving groove 111 for a winding element, the friction piece 12 is fixedly arranged at the outer side of the circumference of the rotating disk 10, the friction piece 12 is only contacted with the rotating seat 11 and is not connected with the rotating disk 10, and the friction surface of the friction piece 12 contacts with the side wall of the rotating seat 11 to rotate the rotating seat 11 by static friction force, the metal spraying machine 13 is suspended and fixedly arranged above the rotary table 10, a metal spraying port of the metal spraying machine 13 is positioned on the circular motion track of the rotary seat 11, and the metal spraying width of the metal spraying machine 13 on the end face of the winding element is smaller than the diameter of the end face of the winding element.

Referring to fig. 1, taking a gold spraying process of two adjacent winding elements on the whole turntable 10 as an example, two circles in fig. 1 represent the winding elements, and in a conventional gold spraying process, because the gold spraying process is a full-coverage type gold spraying process, the area inevitably wasted is the sum of S1+ S2+ S5.

In addition, the metal spraying device adopts the large turntable 10 to bear the winding elements needing metal spraying, so that the number of the winding elements which can be sprayed with metal at one time is greatly increased; in addition, when the rotary table 10 rotates, the rotary seat 11 on the rotary table 10 contacts with the friction piece 12 to generate static friction once passing through the friction piece 12, so that the rotary seat 11 rotates due to the static friction, the angle is changed, and the part for aligning and spraying gold can be sprayed when the rotary table passes below the gold spraying machine 13 next time. The structure of the metal spraying device is simpler, a speed reduction motor is arranged at the bottom of a rotating disc 10 of the metal spraying device and is in transmission connection with a rotating shaft of the rotating disc 10 through a gear or a transmission belt, and the rotating seat 11 can be in rotating connection with the rotating disc 10 only by using a bearing, so that the metal spraying device is simpler in structure, low in manufacturing cost and simple in maintenance.

Finally, the metal spraying device has the following advantages: (1) the structure is simple, the control is convenient, the manufacturing cost is low, and the maintenance is convenient; (2) adopt carousel 10 to bear the weight of the winding component, through the cooperation with rotating seat 11, friction piece 12, can not only satisfy the winding component and rotate and accomplish spraying gold, reduce the waste of metal powder, greatly increased treats spraying gold winding component quantity simultaneously, reduces the number of times of changing the winding component to the metal spraying efficiency of totality has been improved.

As shown in fig. 2, the friction surface of the friction member 12 is a sawtooth surface, and a corresponding sawtooth surface is also provided at a position on the side wall of the rotating seat 11 that is equal to the friction surface of the friction member 12, so that static friction is ensured by directly meshing the sawteeth when the rotating seat 11 contacts with the friction member 12, thereby ensuring that the rotation angle of each rotating seat 11 is the same, and preventing the end surface metal spraying of an individual winding element from generating a consistency difference with other winding elements due to sliding friction between the rotating seat 11 and the friction member 12.

As shown in fig. 2, a gap is provided between adjacent rotating seats 11. The gap is arranged to prevent that when one rotating seat 11 rotates due to contact between the rotating seats 11, the rotating seat 11 in contact with the rotating seat 11 rotates due to friction force, and other rotating seats 11 do not rotate due to insufficient friction force, so that the rotating angles of different winding elements are different, the thickness of local metal spraying is changed, and the consistency of metal spraying on the end faces of the winding elements is influenced.

The metal spraying width of the metal spraying machine 13 on the end face of the winding element is smaller than the end face radius of the winding element and larger than one third of the end face diameter of the winding element. The arrangement is to reduce the number of times of the circulating rotation of the winding element while ensuring that the metal powder is wasted by metal spraying of the metal spraying machine 13, thereby improving the metal spraying efficiency and ensuring the adhesion bonding force between metal spraying layers.

As shown in fig. 4, the opposite two sides of the side wall of the rotating seat 11 are provided with clamping arms 112, the lower ends of the clamping arms 112 are rotatably connected with the rotating seat 11, the upper ends of the clamping arms 112 are provided with semi-arc-shaped hoops 113, the hoops 113 after the two clamping arms 112 are upwardly rotated and folded form a circular clamping ring to clamp and fix the winding element, and the two hoops 113 are fixedly embedded. Through setting up staple bolt 113 in order to form the fixed to the winding component, can also prevent simultaneously that the lateral wall of winding component from being sprayed metal powder and polluting, utilize centre gripping arm 112 to fix staple bolt 113, combine the fixed mode of gomphosis, make two easy cohesion of staple bolt 113 and open. In this embodiment, the specific engaging and fixing manner of the two hoops 113 is as follows: as shown in fig. 5, two free ends of one of the hoops 113 extend to the inner side of the other hoop 113, the inner side of the other hoop 113 is also provided with a corresponding notch for accommodating the portion of the hoop 113 extending in, the inner side wall of the notch is provided with a slot, and the outer side wall of the extending portion is provided with a protrusion engaged with the slot.

As shown in fig. 3, the clamping arm 112 includes a fixed arm 121 and a movable arm 122, the lower end of the fixed arm 121 is rotatably connected to the rotating base 11, the upper end of the movable arm 122 is fixed to the anchor ear 113, the movable arm 122 is slidably disposed in the fixed arm 121, an insertion groove 131 adapted to the movable arm 122 is disposed on the side wall of the fixed arm 121 close to the rotating base 11, sliding grooves 132 disposed in the same direction as the insertion groove 131 are disposed on both side walls of the insertion groove 131, a cylindrical sliding block 141 slidably disposed in the insertion groove 131 is disposed at one end of the movable arm 122 away from the anchor ear 113, limiting grooves 133 uniformly distributed along the length direction of the fixed arm 121 are disposed on the side wall of the notch of the insertion groove 131, and a limiting block 142 engaged with the limiting grooves 133 is disposed on the side wall of the movable arm.

The clamping arm 112 is arranged in a manner that the fixed arm 121 and the movable arm 122 are combined, so that the length of the clamping arm 112 can be adjusted, the purpose of accommodating winding elements with different heights is achieved, and meanwhile, the distance between the end face of each winding element and a metal spraying opening of the metal spraying machine 13 can be controlled by adjusting the length of the clamping arm 112. The specific adjusting mode is as follows: in a state where the winding element is not clamped, the movable arm 122 is lifted to separate the stopper 142 from the stopper groove 133, then the movable arm 122 is pulled to slide until the target length is reached, and the movable arm 122 is pressed to embed the stopper 142 into the corresponding stopper groove 133 again.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The thin-film capacitor metal spraying device is characterized by comprising a rotary table (10), a rotary seat (11), friction pieces (12) and a metal spraying machine (13), wherein the rotary table (10) rotates around a central shaft, the rotary seat (11) is uniformly distributed on the circumferential edge of the rotary table (10) at intervals, the bottom of the rotary seat (11) is rotatably connected with the rotary table (10) through a bearing, a containing groove (111) for a winding element is formed in the top of the rotary seat (11), the friction pieces (12) are fixedly installed on the outer side of the circumference of the rotary table (10), the friction surfaces of the friction pieces (12) are in contact with the side wall of the rotary seat (11) to enable the rotary seat (11) to rotate through static friction force, the metal spraying machine (13) is fixedly installed above the rotary table (10) in a suspended mode, a metal spraying port of the metal spraying machine (13) is located on the circular motion track of the rotary seat (11), and the metal spraying width of the metal spraying machine (13) on the end face of the winding element is smaller than the diameter of the end face of the winding element.

2. The metal spraying device for the film capacitor as claimed in claim 1, wherein the friction surface of the friction member (12) is a sawtooth surface, and a corresponding sawtooth surface is also arranged on the side wall of the rotating seat (11) at the same height position as the friction surface of the friction member (12).

3. A kind of film capacitor metal spraying device according to claim 2, characterized by that, there is interval between the said adjacent said rotating seats (11).

4. A kind of film capacitor metal spraying device according to claim 3, characterized by that, the metal spraying width of the metal spraying machine (13) on the end face of the winding component is smaller than the end face radius of the winding component and larger than one third of the end face diameter of the winding component.

5. The metal spraying device for the film capacitor according to any one of claims 1 to 4, wherein clamping arms (112) are arranged on two opposite sides of the side wall of the rotating seat (11), the lower ends of the clamping arms (112) are rotatably connected with the rotating seat (11), the upper ends of the clamping arms (112) are provided with semi-circular hoops (113), the two clamping arms (112) are rotated upwards to form a circular clamping ring to clamp and fix the winding element, and the two hoops (113) are embedded and fixed.

6. The metal spraying device for the film capacitor as claimed in claim 5, wherein the clamping arm (112) comprises a fixed arm (121) and a movable arm (122), the lower end of the fixed arm (121) is rotatably connected with the rotating seat (11), the upper end of the movable arm (122) is fixed with the hoop (113), the movable arm (122) is slidably arranged in the fixed arm (121), the side wall of the fixed arm (121) close to the rotating seat (11) is provided with an embedded groove (131) matched with the movable arm (122), two side walls of the embedded groove (131) are provided with sliding grooves (132) which are arranged in the same direction as the embedded groove (131), one end of the movable arm (122) far away from the hoop (113) is provided with a cylindrical sliding block (141) which is slidably arranged in the embedded groove (131), and the side wall of the notch of the embedded groove (131) is provided with limiting grooves (133) which are uniformly distributed along the length direction of the fixed arm (121), and a limiting block (142) clamped with the limiting groove (133) is arranged on the side wall of the movable arm (122).