Manufacturing method of conductive cloth precision target plateTechnical Field
The invention belongs to the technical field of manufacturing, relates to a target plate manufacturing method, and in particular relates to a conductive cloth precision target plate manufacturing method.
Background
The existing conductive cloth (namely, tinfoil paper) bulleted area target reporting system adopts a cutter cutting process, then the cut conductive cloth is stuck on EVA materials to form a conductive layer, the process ensures that the positions of the conductive cloth are difficult to fix accurately, the interval between each area is uneven, the target reporting precision is directly influenced, fine area isolation operation cannot be carried out by manual sticking, the functional requirement of a target board can be reduced by increasing the number of target board layers, and the functional requirement of each layer of the target board is reduced (the number of target board layers of the existing product is 6-10 layers and the target board comprises a cover and a back cover). The increase of the number of layers of the target plate directly leads to the increase of the weight of the target plate, which is unfavorable for the use of the target plate carried on various kinds of hidden display equipment, and improves the driving power requirement of the hidden display equipment. Multiple layers of target plates do not facilitate the simultaneous conduction of signals from each layer as a bullet passes through the target plate. The fewer the number of layers, the fewer the false alarm of the target plate and the less the missing alarm.
In view of the above technical drawbacks of the prior art, there is an urgent need to develop a new method for manufacturing a conductive cloth precision target plate.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method for manufacturing a target plate with large conductive cloth precision, which solves the problem of accurate isolation and integral forming of the conductive cloth area inside the target plate by adopting an integral bonding laser scribing process.
In order to achieve the above object, the present invention provides the following technical solutions:
the manufacturing method of the conductive cloth precision target plate is characterized by comprising the following steps of:
(1) Sticking the tinfoil paper on the EVA sheet;
(2) Punching a positioning hole on the EVA sheet by using a punching die;
(3) Positioning the EVA sheet by using a positioning hole, and forming a scribing line on tin foil paper on a laser cutting machine, wherein the spacing between the scribing lines is controlled to be 2mm;
(4) Sticking a lead;
(5) And adhering each layer of EVA sheet.
Further, the step (1) specifically includes: and (3) sticking tin foil paper on one side of the EVA sheet with the thickness of 4mm, and sticking tin foil paper on both sides of the EVA sheet with the thickness of 7mm.
Further, the step (2) specifically includes: the EVA sheet with the thickness of 2mm, the EVA sheet with the thickness of 4mm after the tinfoil paper is pasted and the EVA sheet with the thickness of 7mm after the tinfoil paper is pasted are aligned, and the positioning holes are punched by using a punching tool, wherein the 4 positioning holes are symmetrically arranged in pairs, and the diameter of the positioning holes is 10mm.
Furthermore, the step (3) specifically includes the following steps:
(3.1) inserting a locating pin into a locating hole of one EVA sheet with the thickness of 2mm for fixing, and then spraying patterns on the EVA sheet with the thickness of 2mm according to the shape of the target sheet;
(3.2) scribing the tinfoil paper of the EVA sheet with the thickness of 4mm after the tinfoil paper is pasted;
(3.3) scribing the tinfoil on one surface of the EVA sheet with the thickness of 7mm after the tinfoil is pasted;
(3.4) scribing the other surface of the EVA sheet 7mm thick after the tinfoil is pasted.
And wherein the step (4) specifically comprises: and fixing a wire on the EVA sheet with the thickness of 7mm after scribing, specifically, punching the wire by using a 2mm pointed cone, so that the 1mm wire can smoothly pass through the punching, stripping off a wire insulating layer after passing through the wire, ensuring that wires on two sides of the target board are 30mm long, contacting the wires on two ends with tinfoil paper, and fixing the wires on the front side and the back side of the target board by using a tinfoil adhesive tape locally, so that the tinfoil paper layer on the front side and the back side of the target board is conducted.
Finally, the step (5) specifically includes the following steps:
(5.1) uniformly brushing fish bead glue on the area outside the etched line on the one side of the EVA sheet with the thickness of 7mm after the etching by using a scraping blade;
(5.2) placing the EVA sheet with the thickness of 7mm with the glue brushing on a tool, wherein the glue surface faces upwards, bonding the tin foil paper surface of the EVA sheet with the thickness of 4mm upwards with the EVA sheet with the thickness of 7mm to form an EVA layer with the thickness of 11mm, namely bonding one surface of the EVA sheet with the thickness of 4mm, which is not pasted with the tin foil paper, with the surface of the EVA sheet with the thickness of 7mm coated with the fish bead glue to form an EVA layer with the thickness of 11 mm;
(5.3) producing a headed bus bar and defining ports;
(5.4) opening wire passing holes on two sides of the EVA layer with the thickness of 11mm by using a paper cutter, conducting the tape head flat cable with the dividing region, and fixing conducting terminals by using a tin foil tape;
(5.5) uniformly brushing fish bead glue on one surface of the EVA layer with the thickness of 11mm, namely the other surface of the EVA plate with the thickness of 7mm, which is not attached to the EVA plate with the thickness of 4mm, by using a scraping blade;
(5.6) placing the EVA layer with the thickness of 11mm on a tool, wherein the adhesive surface faces upwards, bonding one EVA plate with the thickness of 2mm with the EVA layer with the thickness of 11mm to form the EVA layer with the thickness of 13mm, and scribing the EVA plate with the thickness of 2mm at a wire arrangement position to pass the wire;
(5.7) placing the EVA layer with the thickness of 13m on the upper quadrant layer of the tool upwards, wherein the surface which is not bonded with the EVA plate with the thickness of 2mm, namely the surface of the EVA plate with the thickness of 4mm, faces upwards, and scribing along the outer edge of the tool by using a pencil;
(5.9) after scribing, uniformly brushing fish bead glue on the area outside the target plate by using a scraping blade;
(5.9) placing the EVA layer with the thickness of 13mm with the adhesive brushing on a tool, wherein the adhesive surface faces upwards, and bonding the EVA plate with the thickness of 2mm with the EVA layer with the thickness of 13mm together to form an EVA layer with the thickness of 15 mm;
(5.10) placing the EVA layer with the thickness of 15mm on a tool, sequentially cutting the appearance, ensuring the dimension to be 600 multiplied by 700, and forming the conductive cloth precision target plate.
Compared with the existing manufacturing method, the manufacturing method of the conductive cloth precision target plate has the following beneficial technical effects:
1. the method adopts an integral bonding laser scribing process, and solves the problem of accurate isolation and integral forming of the conductive cloth area inside the target plate.
2. The number of layers is small, and the precision is high.
Drawings
Fig. 1 shows a schematic view of an EVA sheet with a tinfoil paper attached.
Fig. 2 shows a schematic view of EVA sheet punching locating holes.
Fig. 3 shows a schematic of a spray pattern on a 2mm thick EVA sheet.
Fig. 4 shows a schematic of scoring on a tinfoil of a 4mm thick EVA sheet.
Fig. 5 shows a schematic of scoring on a tinfoil paper on one side of a 7mm thick EVA sheet.
Fig. 6 shows a schematic of scoring on the other side of the 7mm thick EVA sheet.
Fig. 7 shows a schematic of the attachment of wires to a 7mm thick EVA sheet after scoring.
Fig. 8 shows a schematic of uniformly brushing the bead filler with a doctor blade in the area outside the scribe line on one side of the scribed 7mm thick EVA sheet.
Fig. 9 shows a schematic view of producing a ribbon cable.
Fig. 10 and 11 are schematic views showing conducting the tape head flat cable to the dividing region and fixing the conducting terminal using a tin foil tape.
Fig. 12 shows a schematic of a uniform brushing of fish bead glue with a doctor blade on one side of an 11mm thick EVA layer, i.e. the other side of the original 7mm thick EVA sheet not laminated to a 4mm thick EVA sheet.
Fig. 13 shows a schematic drawing in which a 13m thick EVA layer is placed in the upper quadrant of the tooling with the side not adhered to a 2mm thick EVA sheet, i.e. the side of the original 4mm thick EVA sheet facing upwards, and a pencil is used to scribe along the outer edge of the tooling.
Fig. 14 shows a schematic of uniformly brushing the bead bond with a wiper blade in the area outside the target plate.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings, which are not to be construed as limiting the scope of the invention.
The invention relates to a method for manufacturing a conductive cloth precision target plate, which is used for manufacturing a target plate of a real-bullet precision area target reporting system. The method for manufacturing the conductive cloth precision target plate is described in detail below, and comprises the following steps:
and (5) outsourcing the EVA coiled material. Three thicknesses of EVA coiled materials are required to be purchased, and the thicknesses of the three thicknesses of EVA coiled materials are respectively 2mm, 4mm and 7mm. Wherein, the quantity ratio of the EVA coiled materials with three thicknesses is 2:1:1. And the width of each EVA coiled material is more than 1250mm plus or minus 10mm, the length is determined according to the batch requirement, and the hardness of the material is 45-50 degrees.
And secondly, cutting the EVA coiled materials with three thicknesses into required sizes by adopting a paper cutter to form an EVA sheet. Specifically, three thickness EVA rolls were cut into EVA sheets of 720mm in length and 620mm in width, and the tolerance was made to be ±5mm.
Thirdly, the single-sided tinfoil paper of the EVA sheet with the thickness of 4mm is pasted, and the double-sided tinfoil paper of the EVA sheet with the thickness of 7mm is pasted. The width of the tinfoil paper is 600mm, the length of the tinfoil paper is 720mm, the 600mm direction of the tinfoil paper is required to be consistent with the 620mm direction of the EVA sheet, the visual inspection center is symmetrical, and the adhesion is smooth. As shown in fig. 1, the width is 600mm, which is tin foil, and the width is 620mm, which is EVA sheet.
Fourthly, aligning the EVA sheet with the thickness of 2mm, the EVA sheet with the thickness of 4mm after the tinfoil is pasted, and the EVA sheet with the thickness of 7mm after the tinfoil is pasted, and punching a positioning hole by using a punching tool. In the present invention, preferably, as shown in fig. 2, 4 positioning holes are punched, the 4 positioning holes are symmetrically arranged in pairs, and the positions of the four positioning holes are shown in fig. 2. More preferably, the diameter of the positioning hole is 10mm. In fig. 2, reference numeral 1 denotes a positioning hole.
Fifthly, inserting a locating pin into a locating hole of one of the EVA plates with the thickness of 2mm for fixing, and then spraying patterns on the EVA plates with the thickness of 2mm according to the shape of the target plate shown in fig. 3. Preferably, the color of the spray pattern is greenish black.
Sixth, the tinfoil paper of the EVA sheet with the thickness of 4mm is marked after the tinfoil paper is pasted. Specifically: positioning pins are inserted into the positioning holes to position, and scribing is performed according to the shape shown in fig. 4. When scribing, the cutter is required to cut the tinfoil paper but cannot cut through the EVA sheet by controlling the cutting depth of the cutter. For the break points left after cutting by some cutters, the connection break points are manually cut through, and the scribed tinfoil paper is manually removed.
Seventhly, scribing is carried out on the tinfoil paper on one surface of the EVA sheet with the thickness of 7mm after the tinfoil paper is pasted. Specifically: positioning pins are inserted into the positioning holes to position, and scribing is performed in the shape shown in fig. 5. When scribing, the cutter is required to cut the tinfoil paper but cannot cut through the EVA sheet by controlling the cutting depth of the cutter. For the break points left after cutting by some cutters, the connection break points are manually cut through, and the scribed tinfoil paper is manually removed.
Eighth, the tinfoil paper on the other surface of the EVA sheet with the thickness of 7mm is marked. Specifically: positioning pins are inserted into the positioning holes to perform positioning, and scribing is performed in the shape shown in fig. 6. When scribing, the cutter is required to cut the tinfoil paper but cannot cut through the EVA sheet by controlling the cutting depth of the cutter. For the break points left after cutting by some cutters, the connection break points are manually cut through, and the scribed tinfoil paper is manually removed.
And ninthly, fixing a lead on the EVA sheet with the thickness of 7mm after scribing. Specifically, a 2mm pointed cone was used to perforate the site shown in fig. 7, allowing for smooth passage of 1mm wire. After passing through the wires, the insulating layers of the wires are stripped, and the length of the wires on the two sides of the target plate is ensured to be 30mm. The wires at the two ends are contacted with the tinfoil paper, and are fixed locally by using a tinfoil tape, so that the tinfoil paper layers on the front and back sides of the target board are conducted. And finally, sequentially measuring the conduction states of the two sides of the target plate by using a universal meter.
Ten, the area outside the score line shown in fig. 8 on the one side of the EVA sheet with a thickness of 7mm after the score line was uniformly coated with a fish bead paste using a doctor blade.
Eleven, placing the EVA sheet with the brushing thickness of 7mm on the tool, wherein the adhesive surface faces upwards, and bonding the tin foil paper surface of the EVA sheet with the thickness of 4mm with the EVA sheet with the thickness of 7mm upwards to form an EVA layer with the thickness of 11 mm. That is, the side of the EVA sheet with the thickness of 4mm, to which the tinfoil paper is not attached, is bonded with the side of the EVA sheet with the thickness of 7mm, to which the fish bead glue is applied, so that an EVA layer with the thickness of 11mm is formed.
Twelve, a headed bus bar is produced and defines ports. In the present invention, a specific ribbon wire is shown in fig. 9.
Thirteen, two sides of the EVA layer with the thickness of 11mm are provided with wire passing holes by using a paper cutter, the tape head flat cable is conducted with the dividing area, and the conducting terminal is fixed by using a tin foil tape. Specifically, the wire holes are opened at the positions shown in fig. 10 and 11, and the tape head flat wire is conducted with the dividing regions in the following wire sequence: a-8, B-9, C-10, D-11, E-12, F-13, G-14, H-15, O-3, P-1 (2), Q-4, R-5, S-6, T-7.
Fourteen, uniformly brushing fish bead glue on one surface of an EVA layer with the thickness of 11mm, namely the other surface of the original EVA plate with the thickness of 7mm, which is not attached to the EVA plate with the thickness of 4mm, by using a scraping blade. As particularly shown in fig. 12.
Fifteen, placing an EVA layer with the thickness of 11mm on the tool, wherein the adhesive surface faces upwards, bonding one EVA plate with the thickness of 2mm with the EVA layer with the thickness of 11mm to form an EVA layer with the thickness of 13mm, and scribing the EVA plate with the thickness of 2mm at a winding displacement position so as to pass the winding displacement.
Sixteen, place 13m thick EVA layer on the frock quadrant layer upwards, wherein, the one side that does not bond with 2mm thick EVA panel, namely the one side of former 4mm thick EVA panel upwards to use the pencil to follow frock outer fringe marking off. The specific scribe line shape may be as shown in fig. 13.
Seventeen, after scribing, as shown in fig. 14, the area outside the target plate was uniformly coated with a bead filler using a doctor blade.
Eighteen, placing the EVA layer with the thickness of 13mm, which is brushed, on a tool, wherein the adhesive surface faces upwards, and bonding another EVA plate with the thickness of 2mm with the EVA layer with the thickness of 13mm together to form the EVA layer with the thickness of 15 mm.
Nineteenth, placing the EVA layer with the thickness of 15mm on a tool, sequentially cutting the appearance, ensuring the dimension to be 600 multiplied by 700, and forming the conductive cloth precision target plate. Note that: the traditional Chinese medicine avoids the flat cable in the cutting process.
The method for manufacturing the conductive cloth precision target plate adopts an integral bonding laser scribing process, and solves the problem of integral forming of accurate isolation of the conductive cloth area inside the target plate.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.