CN102815571B - Automatic aluminum foil cutting and feeding device - Google Patents

Abstract

The invention discloses an aluminum foil automatic cutting and feeding device, which mainly includes a device frame and an aluminum foil roll placement mechanism, a feeding and conveying mechanism, an aluminum foil cutting mechanism and a feeding mechanism that are sequentially arranged on the table of the frame, the aluminum foil roll The placement mechanism is composed of a support rod fixed on the rack table at one end and a runner installed on the other end of the support rod for placing the aluminum foil roll. The guide wheel combination for guiding the aluminum foil, the traction wheel combination driven by the motor for pulling the aluminum foil in translation, and the bracket installed between the guide combination and the traction wheel combination for supporting the aluminum foil, the aluminum foil cutting mechanism is a cylinder The piston drives the cutting mechanism, and the feeding mechanism is composed of a feeding cylinder fixed on the frame table and a vacuum sucker device fixed on the slider of the feeding cylinder. The invention has compact structure and good cutting quality of the aluminum foil, and can greatly improve the utilization rate of the aluminum foil and the production efficiency of the high-voltage resistant mica capacitor.

Description

Aluminum foil automatic cutting and feeding device

technical field

The invention belongs to the technical field of electronic component packaging automation equipment, and in particular relates to an aluminum foil paper cutting and feeding device, which is an important part of a mica capacitor.

technical background

High-voltage resistant mica capacitor is an important energy storage element of modern aerospace engine ignition device, and its performance will directly affect the reliability of engine ignition.

At present, the production of domestic high-voltage mica capacitors basically adopts the traditional manual process, and the assembly workers manually complete multiple processes such as aluminum foil cutting, lamination, stacking, and painting. This method not only has low production efficiency and a large waste of raw materials, but also has a long-term exposure to silicone insulating drying paint (toxic substances) for workers, which has a relatively large impact on their health. Manufacturers are in urgent need of automated equipment that can replace manual production of mica capacitors to improve production efficiency, reduce costs, reduce labor intensity and reduce health hazards to workers.

In the production of mica capacitors, the thickness of the aluminum foil used as the capacitor pole piece is 0.07±0.001mm, and there are high requirements on the quality of its cutting edge. It is required that the cutting edge of the aluminum foil should be as smooth as possible without burrs and indentations, because These defects can cause the tip of the capacitor to discharge, or even break down, causing the product to be scrapped. At present, the cutting of aluminum foil paper in the industry generally cuts the aluminum foil roll into two halves first, and then cuts out the corresponding length with a photo paper cutter. The disadvantages of this cutting method, in addition to the aforementioned production efficiency and labor intensity In addition to being large and harmful to the health of workers, the more prominent problem is the huge waste of raw materials. Therefore, the development of a compact, convenient and practical aluminum foil automatic cutting and feeding device is the key to the development of high-voltage mica capacitor automatic production equipment, and it is also an important issue faced by scientific and technological workers in the field.

Contents of the invention

Aiming at the status quo of the existing technology, the present invention aims to provide an automatic cutting and feeding device for aluminum foil paper, an important part of the high-voltage mica capacitor, through which the rolled aluminum foil can be directly cut into a specified length of aluminum foil, and sent to the next One station to realize the automation of mica capacitor production.

For achieving the above object, technical solution of the present invention is:

The composition of the aluminum foil automatic cutting and feeding device mainly includes the device frame and the aluminum foil roll placement mechanism, the feeding and conveying mechanism, the aluminum foil cutting mechanism and the feeding mechanism that are sequentially arranged on the rack table. The aluminum foil roll placement mechanism is fixed at one end. The supporting rod on the rack table and the runner installed on the other end of the supporting rod for placing the aluminum foil roll are composed of a bottom plate fixed on the rack table and a guide fixed on the bottom plate for guiding the aluminum foil. Wheel combination, used for traction aluminum foil translation is composed of motor-driven traction wheel combination and a bracket installed between the guide combination and traction wheel combination for supporting aluminum foil. The aluminum foil cutting mechanism is a cylinder piston driven cutting mechanism. The feeding mechanism is composed of a feeding cylinder fixed on the rack table and a vacuum sucker device fixed on the slider of the feeding cylinder.

In order to better realize the purpose of the present invention, the present invention can further adopt the following technical measures. The following technical measures can be taken individually, in combination, or even together.

The runner of the aluminum foil roll placement mechanism can be designed to be composed of a cantilever mandrel installed on the support rod, a sleeve for bearing the aluminum foil roll and a gland. The sleeve is installed on the cantilever mandrel through a bearing, and the press The cover and the sleeve are connected by thread pair. Preferably, an adjusting washer is arranged between the gland and the sleeve, so as to be suitable for aluminum foil rolls of different sizes. The runner is designed with the above-mentioned structure, which can ensure that the aluminum foil roll can rotate freely around the cantilever mandrel under a certain traction force, and avoid the breakage of the aluminum foil feeding and conveying process due to uneven force. It is not only suitable for aluminum foil rolls of different sizes, but also Easy loading and unloading.

The guide wheel combination and traction wheel combination of the feed conveying mechanism can be designed to be composed of a lower guide wheel and an upper guide wheel arranged in a vertical plane, wherein the lower guide wheel is fixedly mounted on the guide wheel bracket, and the upper guide wheel The adjustment mechanism for adjusting the gap between the upper and lower guide wheels is installed on the guide wheel bracket. The lower guide wheel of the traction wheel combination is driven by a drive motor through a shaft coupling. The guide wheel bracket can be designed as a lower support plate fixed on both sides of the bottom plate for installing the lower guide wheel, an upper support plate used for installing the upper guide wheel opposite to the lower support plate, and fixedly connected with the lower support plate on the upper support. The guide rail support plates on both sides of the board and the cover plate connected with the guide rail support plates on both sides of the upper support plate to form a “П” structure, the upper support plate and the guide rail support plates on both sides are connected by guide rail sliding pairs. The gap adjustment mechanism of the upper and lower guide wheels can be designed to be composed of a sleeve arranged in the middle of the cover plate, an adjustment nut matching the thread on the sleeve, an upper end connected to the adjustment nut, and a spring connected to the lower end of the sliding member. Fixed together with the upper support plate. The ingenious structural design of the guide wheel combination and traction wheel combination enables the gap between the upper and lower guide wheels to be adjusted, which can well adapt to aluminum foils of different thicknesses. The aluminum foil can not only ensure the flatness of the aluminum foil during the feeding and transportation process, but also avoid The aluminum foil is broken due to excessive extrusion force between the upper and lower guide wheels.

The cylinder-piston-driven cutting mechanism can be designed to consist of a knife rest fixed on the frame table, a shearing cylinder piston fixed on the knife rest, a fixed blade fixed on the knife rest and one end placed on the knife rest through a hinge structure. The moving blade constitutes the scissors structure with the fixed blade, and the shearing cylinder piston is set correspondingly to the moving blade. The piston movement output member acts on the moving blade by driving the return mechanism, and the cutting of the aluminum foil is realized under the action of the shearing cylinder piston. The drive return mechanism can be designed to be composed of a mechanism seat, a push rod arranged on the mechanism seat for pressing the back of the movable blade, and a tension spring. One end of the tension spring is connected to the mechanism seat, and the other end is connected to the movable blade. The plate is fixedly coupled with the piston motion output member. The cutting mechanism adopts the paper-cutting principle of scissors, which effectively avoids defects such as burrs and indentations in aluminum foil cutting due to installation errors of various parts of the cutting mechanism during the cutting process.

The vacuum suction cup device can be designed to be composed of a tray frame fixed on the slider of the feeding cylinder, a suction cup seat installed below the tray frame, and a material tray placed above the tray frame. The suction cup seat matches the tray frame to form a vacuum suction cup chamber. A number of suction holes are designed on the shelf, and a pipe joint for connecting the vacuum system is designed on the suction cup seat. Wherein the shape of the tray is preferably a rectangular tray adapted to the shape of the aluminum foil sheet cut by the cutting mechanism. The feeding mechanism composed of the vacuum chuck device with the above structure can effectively avoid the positional deviation of the cut aluminum foil when it is sent to the next station.

The present invention also takes some other technical measures.

The aluminum foil automatic cutting and feeding device provided by the present invention has a compact structure, convenient and fast installation of aluminum foil coils and replacement of cutters, no burrs and indentations on the cut aluminum foil material, good consistency of cutting length, and no positional shift in feeding . The aluminum foil automatic cutting and feeding device of the present invention can not only be used in the mica capacitor automatic production line, but also be used for aluminum foil cutting alone.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the aluminum foil automatic cutting and feeding device of the present invention.

Accompanying drawing 2 is the A-A sectional view of the aluminum foil unwinding mechanism of the present invention.

Accompanying drawing 3 is the combined front view of the guide wheel of the feeding conveying mechanism of the present invention.

Accompanying drawing 4 is the B-B arrow sectional structure schematic diagram in accompanying drawing 3.

Accompanying drawing 5 is the C-C sectional structure schematic diagram in accompanying drawing 3.

Accompanying drawing 6 is the three-dimensional structure schematic diagram of the sliding guide rail of the feeding conveying mechanism of the present invention.

Accompanying drawing 7 is the combined front view of the traction wheel of the feeding conveying mechanism of the present invention.

Accompanying drawing 8 is the D-D arrow sectional structure schematic diagram in accompanying drawing 7.

Accompanying drawing 9 is the front structural schematic diagram of the aluminum foil cutting mechanism of the present invention.

Accompanying drawing 10 is the side view structure diagram of the aluminum foil cutting mechanism of the present invention.

Accompanying drawing 11 is the three-dimensional structure diagram of the feeding mechanism of the present invention.

Accompanying drawing 12 is the schematic diagram of the front view structure of the feeding mechanism of the present invention.

Accompanying drawing 13 is the three-dimensional structure schematic diagram of the tray of feeding mechanism of the present invention.

Accompanying drawing 14 is the schematic diagram of the use state of the aluminum foil automatic cutting and feeding device of the present invention.

In the above drawings, the objects marked by each icon mark are: 1-table top; 2-bottom plate; 3-support rod; 4-cantilever mandrel; 5-gland; ;8-upper guide wheel; 9-bracket; 10-motor; 11-upper guide wheel; 12-knife holder; 13-paper cutting cylinder; 14-feed tray; Bearing; 18-bearing; 19-lower support plate; 20-rail support plate; 21-upper support plate; 22-cover plate; 23-adjusting nut; 24-sliding member; 25-guide rail; 26-motor support; 27-coupling; 28-lower guide wheel; 29-connecting plate; 30-accepting platform; 31-mechanism seat; Pipe joint; 37-slider; 38-aluminum foil roll; 39-adjusting washer; 40-spring; 41-tension spring; 42-nut; 43-guide wheel steel core; 44-rubber layer; 45-ball; 46-ball Bracket; 47—suction hole.

Detailed ways

An embodiment of the present invention is given below in conjunction with the accompanying drawings, and the present invention will be further described through the embodiment. It should be pointed out that the specific implementation of the present invention is not limited to the forms described in the examples.

The aluminum foil automatic cutting and feeding device of the present invention is a cutting and feeding device for aluminum foil, an important part of mica capacitors. Its overall structure is shown in Figure 1, and it is arranged sequentially from right to left on the device frame and on the frame table 1. It is composed of advanced aluminum foil roll placement mechanism, feeding and conveying mechanism, aluminum foil cutting mechanism and feeding mechanism. The structure of the aluminum foil roll placement mechanism is shown in Figure 2, by the support rod 3 fixed on the device frame table top 1, the cantilever mandrel 4 fixed on the other end of the support rod 3 by the nut 42, and the bearings 17, 18 The axle sleeve 6 installed on the cantilever mandrel, the gland 5 installed on the axle sleeve 6 through the screw thread pair and the adjusting washer 39 between the axle sleeve and the gland are formed.

The structure of described feeding conveying mechanism is as shown in accompanying drawing 3,4,5 and 6, by the base plate 2 that is fixed on the device frame table top, is respectively fixed on the guide wheel combination of base plate 2 right-hand sides, the traction wheel combination of left end, It is installed between the guide wheel combination and the traction wheel combination, and is formed by the feeding bracket 9 stuck on the base plate 2. The structure of the combination of guide wheels and the combination of traction wheels is basically the same, both of which are composed of lower guide wheels 7, 28 and upper guide wheels 8, 11 arranged in a vertical plane, wherein the lower guide wheels 7, 28 are fixedly installed on the guide wheel bracket , the upper guide wheels 8, 11 are installed on the guide wheel bracket by adjusting the adjustment mechanism for adjusting the gap between the upper and lower guide wheels. The difference between the guide wheel combination and the traction wheel combination is that the lower guide wheel 28 of the traction wheel combination passes through 27 is connected with drive motor 10, and drive motor 10 is installed on the guide wheel support by motor support 26. The guide wheel bracket is fixed on the left and right sides of the base plate 2, and has the same structure as the lower support plate 19 for installing the lower guide wheels 7, 28. The support plate 21 is fixedly connected with the lower support plate 19 to the guide rail support plate 20 located on both sides of the upper support plate 21, and the cover plate 22 is connected with the guide rail support plate 20 located on both sides of the upper support plate to form a “П” structure. The support plate is connected with the guide rail support plates on both sides through the guide rail sliding pair. The upper and lower guide wheel gap adjustment mechanism is composed of a sleeve arranged in the middle of the cover plate 22, an adjustment nut 23 matched with the thread on the sleeve, and a spring 40 whose upper end is connected to the adjustment nut and the lower end is connected to the sliding member 24. The components are fixed together with the upper support plate. The sliding member 24 is composed of a ball 45 and a ball bracket 46, fixed with the upper support plate 21, matching with the guide rail groove on the guide rail member 25 to form a guide rail sliding pair, and the guide rail member 25 and the guide rail support plate 20 are integral structures. Last guide wheel 8,11 and lower guide wheel 7,28 are combination structures, are made of special-shaped guide wheel steel core 43 and rubber layer 44.

The cylinder-piston-driven cutting mechanism consists of a knife rest 12 fixed on the leftmost end of the bottom plate 2 of the feed conveying mechanism, a shearing cylinder piston 13 fixed on the upper end of the knife rest, a fixed blade 34 fixed on the knife rest, and one end arranged through a hinge structure. On the knife rest 12, the moving blade 33 and the driving return mechanism constitute the scissors structure with the fixed blade 34. The shearing cylinder piston is set correspondingly to the moving blade, and the piston movement output member acts on the moving blade through the driving returning mechanism. The aluminum foil is cut under the action of the cylinder piston. The drive return mechanism is composed of a mechanism seat 31, a push rod 32 and an extension spring 41 arranged on the mechanism seat for pressing the back of the movable blade 33, and one end of the extension spring is connected to the mechanism seat, and the other end is connected to the movable blade. The connecting plate 29 is fixedly coupled with the piston movement output member.

The vacuum suction cup device is composed of a tray frame 16 fixed on the feed cylinder 15 slider 37, a suction cup seat 35 installed below the tray frame, and a tray 14 placed on the tray frame. The suction cup seat and the tray frame are matched to form a vacuum suction cup chamber, the tray rack is designed with some adsorption holes 47, the suction cup seat is designed with a pipe joint 36 connected to the vacuum system, and the shape of the tray is a rectangular tray adapted to the shape of the aluminum foil sheet cut by the cutting mechanism. The slide block 37 is the movement output part of the piston of the feeding cylinder 15 .

Claims (10)

1. An automatic cutting and feeding device for aluminum foil, characterized in that it comprises a device frame and an aluminum foil roll placement mechanism, a feed delivery mechanism, an aluminum foil cutting mechanism and a feeding mechanism that are successively correspondingly arranged on the frame table top (1), said The aluminum foil roll placing mechanism is composed of a support rod (3) fixed on the rack table at one end and a runner installed on the other end of the support rod for placing the aluminum foil roll; the feeding conveying mechanism is composed of a bottom plate fixed on the rack table (2), fixed on the bottom plate (2) to guide the guide wheel assembly for guiding the aluminum foil, the traction wheel assembly driven by the motor (10) for pulling the aluminum foil translation, and installed between the guide assembly and the traction wheel assembly for bearing The bracket (9) supporting the aluminum foil is composed of; the guide wheel combination and the traction wheel combination of the feed conveying mechanism are all composed of lower guide wheels (7, 28) and upper guide wheels (8, 11) arranged in a vertical plane The lower guide wheel is fixedly installed on the guide wheel bracket, and the upper guide wheel is installed on the guide wheel bracket through an adjustment mechanism that adjusts the gap between the upper and lower guide wheels; the guide wheel bracket is fixed on both sides of the bottom plate (2). The lower support plate (19) for installing the lower guide wheel, the upper support plate (21) for installing the upper guide wheel relative to the lower support plate, and the guide rail support plate (20) fixedly connected with the lower support plate to be positioned at both sides of the upper support plate ) and the cover plate (22) which is connected with the guide rail support plates located on both sides of the upper support plate to form a “П” structure. The upper support plate and the guide rail support plates on both sides are connected through guide rail sliding pairs, and the upper and lower guide wheels are located on the same vertical plane Inside; the aluminum foil cutting mechanism is a cylinder piston driven cutting mechanism; the feeding mechanism is composed of a feeding cylinder (15) fixed on the frame table and a vacuum suction cup device fixed on the feeding cylinder slider (37). 2. The aluminum foil automatic cutting and feeding device according to claim 1, characterized in that the runner of the aluminum foil roll placement mechanism is composed of a cantilever mandrel (4) installed on the support rod (3), a bearing for the aluminum foil roll Sleeve (6) and gland form, and sleeve is installed on the cantilever mandrel by bearing (17,18), and gland and sleeve are connected by screw thread pair. 3. The aluminum foil automatic cutting and feeding device according to claim 2, characterized in that an adjusting washer (39) is arranged between the gland and the sleeve to be suitable for aluminum foil rolls of different sizes. 4. The aluminum foil automatic cutting and feeding device according to claim 1, 2 or 3, characterized in that the gap adjustment mechanism of the upper and lower guide wheels consists of a sleeve arranged in the middle of the cover plate (22) and matched with the thread on the sleeve. The adjusting nut (23) and the spring (40) whose upper end is connected with the adjusting nut and whose lower end is connected with a sliding member (24) are composed of the sliding member fixedly connected with the upper support plate (21). 5. The aluminum foil automatic cutting and feeding device according to claim 1, 2 or 3, characterized in that the cylinder piston drives the cutting mechanism by a knife rest (12) fixed on the frame table (1), fixed on the knife rest The shearing cylinder piston (13) on the top, the fixed blade (34) fixed on the knife rest and one end are placed on the knife rest through the hinge structure and the moving blade (33) forming the scissors structure with the fixed blade. The shearing cylinder piston and The movable blade is set correspondingly, and the piston movement output member acts on the movable blade by driving the return mechanism, and the cutting of the aluminum foil is realized under the action of the shearing cylinder piston. 6. The automatic cutting and feeding device for aluminum foil according to claim 4, characterized in that the cylinder piston drives the cutting mechanism by a knife rest (12) fixed on the frame table (1), a shearing knife fixed on the knife rest The cylinder piston (13), the fixed blade (34) fixed on the knife rest and the moving blade (33) which is arranged on the knife rest through a hinge structure and the fixed blade to form a scissors structure are composed of one end, and the shearing cylinder piston and the moving blade are arranged correspondingly , the piston movement output member acts on the movable blade by driving the return mechanism, and realizes the cutting of the aluminum foil under the action of the shearing cylinder piston. 7. The aluminum foil automatic cutting and feeding device according to claim 6, characterized in that the drive return mechanism consists of a mechanism seat (31), a push rod (32) arranged on the mechanism seat for pressing the back of the moving blade, and Extension spring (41) is formed, and extension spring one end connects mechanism seat, and the other end connects movable blade, and mechanism seat is fixedly connected with piston motion output member by connecting plate (29). 8. The aluminum foil automatic cutting and feeding device according to claim 1, 2 or 3, characterized in that the vacuum suction cup device consists of a tray frame (16) fixed on the feed cylinder slider (37), installed under the tray frame The suction cup seat (35) and the tray (14) placed above the tray frame are formed, the suction cup seat and the tray frame are matched to form a vacuum suction cup chamber, the tray frame is designed with a number of adsorption holes (47), and the suction cup seat is designed to connect the vacuum system the fitting(36). 9. The automatic cutting and feeding device for aluminum foil according to claim 7, characterized in that the vacuum suction cup device consists of a tray frame (16) fixed on the feeding cylinder slide block (37), a suction cup seat (16) installed below the tray frame ( 35) and the tray (14) placed above the tray frame, the suction cup seat matches the tray frame to form a vacuum suction cup chamber, the tray frame is designed with a number of adsorption holes (47), and the suction cup seat is designed with pipe joints ( 36). 10. The automatic cutting and feeding device for aluminum foil according to claim 9, characterized in that the tray is a rectangular tray adapted to the shape of the aluminum foil sheet cut by the cutting mechanism.