JP5441968B2 - Intermittent coating equipment - Google Patents

Description

  When the present invention alternately forms a coating area and a non-coating area along the longitudinal direction of the substrate with an intermittent coating apparatus on the surface of the substrate, the coating start end or the coating end of the coating area This relates to reducing the height of the raised portion of the raised portion.

  For example, when manufacturing a negative electrode plate for a battery, a negative electrode paste coating agent is applied intermittently between a coating area and a non-coating area on a substrate made of a copper foil for a negative electrode current collector using a die coating device. In this case, since the pressure inside the die is high at the start of coating, a rising portion may be formed at the coating start end of the coating area (Patent Document 1).

JP 2003-223899 A

  Since the raised portion is the boundary surface between the coating area and the non-coating area, the thermal load during drying after coating increases, and the adhesion strength with the negative electrode current collector decreases due to migration of the binder. There are problems such as. Further, the raised portion is not limited to the production of the negative electrode plate of the battery by the die coating device, but a high viscosity (for example, 1000 cps or more) coating agent is intermittently applied to the substrate by a reverse kiss coating device or the like. There are cases where it can be made at the coating end portion of the coating area at the time of processing, and this may cause various problems such as a decrease in adhesion strength with the substrate and cracks during rolling in the subsequent process.

The present invention, in order to solve the problems caused by swelling portion, the raised height of the raised part generated on the coating starting end or coating the end of the coating zone can be reduced, provided between Ketsunuri Engineering Equipment With the goal.

The means adopted by the present invention according to claim 1 is provided in the middle of the substrate traveling path in order to instantaneously increase the wind pressure of the gas ejected from the gas ejection slit to an optimum value and to reliably reduce the rising height dimension. When the coating area and the non-coating area are alternately formed along the substrate traveling direction on the surface of the substrate traveling on the substrate traveling path with the intermittent coating apparatus provided, the coating start of the coating area In an intermittent coating facility in which a swell portion is generated at a part or a coating end portion, a gas ejection device having a gas ejection slit for ejecting gas toward a predetermined portion of a substrate traveling path through which the swell portion passes, and a gas ejection the gas to be jetted from the use slit comprises a gas supply device for supplying only the set time to the gas injection device, the gas supply device, through a check valve to a gas source with leads through a check valve to the gas discharge device Cylinder and leading to Consists piston which internally fitted to advance and retreat in Linder, a pump for supplying the cylinder internal gas forward of the piston fetches the gas into the cylinder from the gas source in the retraction of the piston into the gas injection device, is intermittent coating equipment, characterized in that a speed-variable motor for advancing and retracting the piston.

The intermittent coating equipment according to the first aspect of the present invention has an optimum value of the wind pressure of the gas ejected from the gas ejection slit of the gas ejection device by starting the variable speed motor at a set speed and moving the piston forward. It is possible to increase the height dimension up to an instant and to reliably reduce the raised height dimension.

There is shown a first embodiment of between Ketsunuriko設Bei, Fig (A) is a side view showing a schematic overall between Ketsunuri Engineering equipment 1, FIG. (B) is a plan view of a main portion It is. It is the side view to which the vicinity of the gas ejection apparatus 7 in the same embodiment was expanded. It is a side view which expands and shows the situation where the bulge part Q is equalized and processed in the gas jetting device 7 in the same embodiment, and the figure (A) is from the gas jetting slit 14 of the gas jetting device 7 to the bulging part Q. Immediately after the gas G is sprayed, FIG. (B) shows a state in which the height dimension of the raised portion Q ′ subjected to the leveling process after the gas spraying is stopped is reduced. It is a side view which expands and shows the situation of a different mode which processes a rising part with a gas jetting device in the embodiment, and Drawing (A) goes to rising part Q from slit 14 for gas jetting of gas jetting device 7. FIG. 5B shows a state in which the height dimension of the bulging portion Q ′ subjected to the smoothing process after the gas blowing is stopped is reduced immediately after the gas G is sprayed. It is a side view which expands and shows the situation of the further different mode which processes a swell part with a gas jetting device in the embodiment, and Drawing (A) is from swell 14 for gas jetting of gas jetting device 7 to swelling part Q. Immediately after the gas G is sprayed, FIG. (B) shows a state in which the height dimension of the raised portion Q ′ subjected to the leveling process after the gas spraying is stopped is reduced. Is a side view showing an overall outline of a second between the Ru engaged to the embodiment Ketsunuri Engineering equipment 21. Is a side view showing an overall outline of a third between Ketsunuri Engineering equipment 31 engaged Ru to the embodiment of. Is a side view showing an overall outline of the fourth between Ru engaged to the embodiment Ketsunuri Engineering equipment 51. Is a side view showing an overall outline of a fifth between Ketsunuri Engineering equipment 61 engaged Ru to the embodiment of.

It will be described with reference to embodiments shown between Ketsunuriko設Bei the drawings. Note that “front”, “rear”, “left”, “right”, “upper”, and “lower” are as shown in the drawings, and the horizontal direction is along the transverse direction of the substrate W.

(First embodiment)
Engaging Ru between Ketsunuri Engineering equipment 1 in the first embodiment, as shown in FIG. 1, an intermittent coating apparatus 2 provided in the middle of the path of substrate travel R, groups traveling path of substrate travel R A coating area C and a non-coating area D are alternately formed on the surface of the material W along the substrate traveling direction S. The intermittent coating apparatus 2 in this example is a die coating method, and is a backing roll 3 that is driven by an electric motor 20 and rotates at a set speed, and a substrate traveling path that is formed on the outer peripheral surface 3a of the backing roll 3. A die coating head 4 that discharges and stops the coating agent toward R, and a coating agent supply device 5 that alternately repeats supply and stop of the coating agent to the inside of the die of the die coating head 4 are provided. The backing roll 3 travels at the set speed V while winding the base material W traveling on the base material travel path R in a state where the backing roll 3 is crimped to the outer peripheral surface 3a. The die coating head 4 forms a coating area C by applying a coating agent, which is discharged from the tip opening of the discharge port 4a extending in the left-right direction, to the traveling substrate W in a film shape. In this case, the non-coating region D is formed by stopping the discharge of the coating agent, and the pressure inside the die is temporarily increased at the start of coating. A raised portion Q extending in the left-right direction is generated.

During Ketsunuri Engineering equipment 1, as shown in FIG. 1, a leveling device 6 in order to reduce the swelling height of the swelling portion Q. The leveling device 6 is a gas jetting device 7 that blows a gas G toward the downstream side of the die coating head 4 in the base material traveling path R on the outer peripheral surface 3 a of the backing roll 3, and jets to the gas jetting device 7. A gas supply device 8 for supplying the working gas G is provided, toward a predetermined location Ra (a location for leveling to reduce the height of the raised portion Q) of the base material traveling path R through which the raised portion Q passes. The gas G is blown from the gas blowing device 7 to the entire width direction of the raised portion Q for a set time.

  As shown in FIG. 1, the gas ejection device 7 includes a hollow holder 10 having a gas passage 10 a extending in the left-right direction therein, and two lip pieces 11 extending in the left-right direction attached to the holder 10. , 12, and a gas ejection slit 13 formed so as to extend continuously in the left-right direction between the lip pieces 11, 12 is communicated with the gas passage 10 a and supplied from the gas supply device 8 to the gas passage 10 a. A uniform wind pressure (for example, the static pressure of the gas passage 10a is 0.1 to 0.5 MPa on the basis of the atmospheric pressure) from the entire width direction of the gas ejection slit 13 toward the predetermined location Ra of the base material traveling path R. ). The gas supply device 8 is attached to a fixing base (not shown) via an adjustment tool (not shown), and as shown in FIG. 2, the gas supply device 8 extends from the slit tip portion 13 a along the radial direction E of the backing roll 3. The distance H to the surface and the spraying angle θ of the ejection gas with respect to the surface of the substrate W (intersection angle between the center line J of the gas ejection slit 13 and the tangent line K of the substrate surface) can be adjusted to optimum values. It is like that. Further, the gas supply device 8 moves each of the two lip pieces 11 and 12 in the direction of the arrow M, so that the thickness dimension T of the ejection slit 13 is selected to an optimum value (for example, in the range of 10 to 100 μm). Can be adjusted).

  As shown in FIG. 1, the gas supply device 8 includes a gas source 15 including a tank storing high pressure gas such as nitrogen and air, and a gas supply path 16 extending from the gas source 15 to the gas passage 10 a of the gas supply device 8. And a pressure regulating valve 17 including a pressure reducing valve provided on the upstream side of the gas supply passage 16, an on-off valve 18 provided on the downstream side of the gas supply passage 16, and the control of the on-off valve 18 and the coating agent supply device 5. And a control device 19 that issues an operation signal to the valve 5a. The control device 19 issues a valve opening signal to the control valve 5a of the coating agent supply device 5 to start the application of the coating area C by the die coating head 4, and then the coating start end of the coating area C When the swelled portion Q formed in Ca reaches a predetermined location Ra of the base material traveling path R serving as a leveling processing position, a valve opening signal is issued to the on-off valve 18 of the gas supply device 8, and the gas ejection device The gas G is ejected from the gas ejection slit 13 of No. 7 for a set time (for example, 0.1 to 0.5 seconds) and blown to the rising portion Q. As shown in FIG. 3, the gas G blown to the raised portion Q levels the raised portion Q and reduces the height dimension of the raised portion Q ′ after the leveling process. As shown in FIG. 1, the control device 19 is an example of obtaining the timing for issuing a valve opening signal to the on-off valve 18 of the gas supply device 8, and the base material traveling path R formed on the outer peripheral surface 3 a of the backing roll 3. The distance L from the coating start position Rb to the predetermined location Ra serving as the leveling position is divided by the traveling speed V of the substrate W (rotational speed of the outer peripheral surface of the backing roll 3) (L ÷ V). The timing is obtained by the time obtained by The traveling speed V of the base material W is obtained from a speed signal from a tachometer or the like of the electric motor 20 that drives the backing roll 3. As another example of obtaining the timing, the distance from the detection position of the base material travel path R through which the raised portion Q detected by the detector 14 passes to the predetermined location Ra serving as the leveling processing position is determined by the travel of the base material W. The timing is obtained by the time obtained by dividing by the speed V. The set time for blowing the gas G from the gas ejection slit 13 to the raised portion Q is determined according to the size of the raised portion Q, the viscosity of the coating agent, and the like. When the coating area C having a set length is formed after issuing a valve closing signal to the control valve 5a of the coating agent supply device 5, the control device 19 issues a valve closing signal to terminate the coating. Part Cb is formed.

Intermittent method using between Ketsunuri Engineering equipment 1, as shown in FIG. 1, along the substrate travel direction S on the surface of the substrate W which runs wound backing roll 3 wound with intermittent coating apparatus 2 When the coating area C and the non-coating area D are alternately formed, in the case where the rising portion Q is generated at the coating start end Ca of the coating area C, as shown in FIG. The gas G ejected from the gas ejection slit 13 is sprayed to the swell portion Q for a set time to level the swell portion Q, and the height of the swell portion Q ′ after the leveling process as shown in FIG. Make the dimensions smaller than before the leveling process. As a direction in which the gas is ejected from the gas ejection slit 13 of the gas ejection device 7, as shown in FIG. 3A, a case where a component in the direction opposite to the traveling direction S of the substrate W is included, and FIG. When the component in the same direction as the traveling direction S of the base material W is included as shown in FIG. 5 and when the radial direction of the backing roll 3 (that is, the vertical direction of the base material W) E is shown as shown in FIG. There is.

Intermittent method, leveling the surface push the raised part Q in wind pressure of gas ejected from the gas ejection slit 13 of the gas injection device 7, coating the height of the raised part Q 'after the smoothing treatment It is approximated to the thickness dimension of the coating film inside the area C, and is not blown away so as to separate the raised portion Q from the coating area C. It is not preferable to blow off the swelled portion Q because the coating area C or the non-coating area D is soiled with scattered matter. In addition, as a direction which pushes up the swelling part Q, when expanding to the inner side of the coating area C as shown in FIG. 3 (B) and when expanding to the outer side of the coating area C as shown in FIG. 4 (B) In some cases, as shown in FIG. 5 (B), the coating area C is spread and dispersed inside and outside.

(Second Embodiment)
6 shows between Ketsunuri Engineering equipment 21 engages Ru to the second embodiment. During Ketsunuri Engineering equipment 21 Ru engaged to the present embodiment, reduce the height of the predetermined portion Ra (raised part Q of the substrate travel path R to blow gas ejected from the gas ejection slit 13 of the gas injection device 7 Is a point where the leveling processing position for positioning) is positioned on the outer peripheral surface of the leveling roller 22 disposed on the downstream side of the backing roll 3 in the substrate traveling path R. Unlike the first embodiment, the other parts are substantially the same as those of the first embodiment. In FIG. 6, the same reference numerals as those shown in FIGS. 1 to 5 indicate the corresponding parts.

During intermittent method using Ketsunuri Engineering equipment 21, the coating region C and Hinuri along the substrate travel direction on the surface of the substrate W which runs wound backing roll 3 wound with intermittent coating apparatus 2 When alternately forming the work areas D (see FIG. 1), when the raised portions Q are generated at the coating start end Ca of the coating area C, the raised portions Q are on the outer peripheral surface of the leveling processing roller 22. When passing through a predetermined location Ra of the substrate running path R formed on the gas, the gas is ejected from the gas ejection slit 13 of the gas ejection device 7 for a set time and blown to the swelled portion Q and leveled, and the swell height Reduce dimensions. As a direction in which the gas is ejected from the gas ejection slit 13 of the gas ejection device 7, as shown in FIG. As shown, there may be a case where a component in the same direction as the traveling direction of the substrate W is included, and a case where the component is along the vertical direction E of the substrate W as shown in FIG.

(Third embodiment)
Figure 7 shows a Ketsunuri Engineering equipment 31 while engaging Ru to the third embodiment. Ketsunuri Engineering equipment 31 between Ru engaged to this embodiment differs significantly from the part of the gas supply apparatus 38 constituting a leveling device 6 first embodiment, the first embodiment for the other parts In FIG. 7, the same reference numerals as those shown in FIGS. 1 to 5 denote corresponding parts.

  The gas supply device 38 includes a gas extrusion device 39 instead of the on-off valve 18 in the first embodiment. The gas extruding device 39 communicates with the gas ejection slit 13 of the gas ejection device 7 through the check valve 34 and allows the gas source 15 to communicate with the gas source 15 through the check valve 35 and the cylinder 36 so as to freely advance and retreat. A piston 37 fitted therein is provided, and when the piston 37 moves backward (moving in the direction of arrow N), gas is taken into the cylinder interior 36a from the gas source 15 and the piston 37 moves forward (moving in the direction of arrow P) to move inside the cylinder. A pump 32 that pressurizes the gas 36a and supplies the gas to the gas ejection device 7 and a drive device 33 that moves the piston 37 back and forth are provided. The drive device 33 includes a variable speed motor 33a and a transmission mechanism 33b such as a pinion / rack gear for converting the output rotational motion of the variable speed motor 33a into the forward / backward motion of the piston 37.

  Since the moving speed of the piston 37 is changed by changing the rotational speed of the variable speed motor 33a, the gas pushing device 39 increases the speed of the variable speed motor 33a to make the piston 37 move forward faster. The gas pressure of gas 36a can be increased by increasing the gas pressure of the gas ejection slit 13a. Conversely, the variable speed motor 33a can be decelerated to slow the forward movement of the piston 37. Since the gas pressure can be lowered and the wind pressure of the gas ejected from the gas ejection slit 13 can be lowered, the variable speed motor 33a is activated at a set speed suitable for the leveling process of the swell portion Q, and the piston 37 is activated. By moving forward, the wind pressure of the gas ejected from the gas ejection slit 13 of the gas ejection device 7 is instantaneously increased to the optimum value, and the rising height after the leveling treatment It is possible to reliably reduce.

  Further, the gas pusher 39 sets the time from the start to the stop of the variable speed motor 33a for moving the piston 37 forward and determines the advance time of the piston 37, so that the gas jetting device 7 can increase the swell portion Q. The gas G can be sprayed for the set time over the entire lateral width direction. Further, the gas extrusion device 39 rapidly reverses the rotation of the variable speed motor 33a that advances the piston 37 immediately after the rotation, thereby rapidly reducing the gas pressure in the cylinder interior 36a, so that the gas ejection device 7 The ejection of gas from the gas ejection slit 13 can be stopped. The gas extrusion device 39 optimizes the gas ejection speed at each elapsed time from the start to the stop of gas ejection from the gas ejection slit 13 by setting the start / stop timing and rotation speed of the variable speed motor 33a. In addition, the gas ejected from the gas ejection slit 13 can be instantaneously stopped, and specifications such as the size of the raised portion Q and the viscosity of the coating agent can be met.

Intermittent method using between Ketsunuri Engineering equipment 31, be optimized value of the gas ejection speed at each elapsed time up to the stop from the start for ejecting gas from the gas ejection slit 13 of the gas injection device 7 with it, except for possible to stop the gas ejected from the gas ejection slits 13 instantaneously, is substantially identical to the intermittent method in the case of the first embodiment.

(Fourth embodiment)
Figure 8 shows a between Ketsunuri Engineering equipment 41 engages Ru to the fourth embodiment. Ketsunuri Engineering equipment 41 between Ru engaged to this embodiment differs greatly intermittent coating apparatus 42 is a point which has a reverse kiss coating method with the first embodiment, the first embodiment for the other parts In FIG. 8, the same reference numerals as those shown in FIGS. 1 to 5 indicate the corresponding parts.

  The intermittent coating apparatus 42 includes a base material feed roll 43 on the upstream side forming the base material travel path R, and a base material on the non-coating surface side Rd on the downstream side of the base material travel path R relative to the base material feed roll 43. A fixed position upstream reference roll 44, a forward / backward coating switching roll 45, a forward / backward tension adjusting roll 46, and a fixed position downstream reference roll (equalizing treatment roller) provided in order in the traveling direction S. ) 47, and arranged at a fixed position on the coating surface side Rc of the substrate traveling path R between the upstream reference roll 44 and the coating switching roll 45 so as to rotate in the same direction as the rotation direction U of the coating switching roll 45. The non-coating operation position A from the non-coating surface side Rd of the substrate travel path R toward the coating surface side Rc is applied to the coating roll 48 having a recess formed on the roll outer peripheral surface 48a. Coating operation to advance to coating operation position B and during this time The coating switching roll operating device 49 for alternately repeating the non-coating operation for retracting the switching roll 45 in the reverse direction, and the tension adjusting roll 46 from the coating surface side Rc of the base material traveling path R to the non-coating surface side. A tension adjusting roll that alternately repeats the coating operation for retreating from the non-coating operation position Y to the coating operation position Z toward Rd and the non-coating operation for retracting the tension adjusting roll 46 in the reverse direction during this period. Control the operation of a driving source 49a composed of an electric servo motor or the like of the operation device 50 for coating, an operation device 49 for a coating switching roll, and a driving source 50a composed of an electric servo motor or the like of the tension adjusting roll operation device 50 And a control device 51 that controls opening and closing of the on-off valve 18 of the supply device 8.

  The control device 51 applies a coating operation (indicated by a solid line in the drawing) to form a coating area C by bringing the coating surface side of the substrate W traveling on the substrate traveling path R into contact with the outer peripheral surface 48a of the coating roll 48. And a non-coating operation (state indicated by a broken line in the figure) in which the base material W is separated from the outer peripheral surface 48a of the coating roll 48 to form a non-coating area D. A start / stop signal is transmitted to each of the drive sources 49a and 50a of the work switching roll operating device 49 and the tension adjusting roll operating device 50.

  The control device 51 is provided on the downstream side from the upstream reference roll 44 along the base material traveling path R so that the start edge and the end edge of the coating area can be approximated to a straight line without being greatly curved. For the dimension value of the substrate pass line to the reference roll 47, a set time set before and after the time to start contact of the coating surface side of the substrate traveling path R with the outer peripheral surface 48a of the coating roll 48 in the coating operation, And the dimension value within each set time set before and after starting the separation of the coating surface side of the base material W from the outer peripheral surface 48a of the coating roll 48 in the non-coating operation is outside these set times. The advance / retreat position of the tension adjusting roll 46 is controlled so as to follow the advance / retreat movement of the coating switching roll 45 so as to be larger than the dimension value. The intermittent coating device 42 increases the tension of the base material W with an increase in the dimension value of the base material pass line to reduce the amount of bending of the base material W in the left-right width direction. It is possible to simultaneously contact or separate the entire lateral width direction of the base material W with respect to 48a, and the lateral area in the lateral width direction of the start end Ca and the end portion Cb of the coating area C can be brought closer to a straight line.

  As an example of obtaining the timing for issuing the valve opening signal to the on-off valve 18 of the gas supply device 8, the control device 51 performs the leveling process from the detection position of the base material traveling path R where the rising portion Q is detected by the detector 14. The timing is obtained by the time obtained by dividing the distance to the predetermined location Ra as the position by the traveling speed V of the base material W (the rotational speed of the outer peripheral surface of the downstream reference roll 47). The set time for blowing the gas G from the gas ejection slit 13 to the raised portion Q is determined according to the size of the raised portion Q, the viscosity of the coating agent, and the like.

Intermittent method using between Ketsunuri Engineering equipment 41, are alternately formed coating zone C and non-coated area D along the substrate travel direction S on an intermittent coating apparatus 42 on the surface of the substrate W to travel When the rising portion Q occurs in the coating end portion Cb of the coating area C, the gas jetted from the gas jetting slit 13 of the gas jetting device 7 is blown to the rising portion Q for a set time, and is leveled. It is to reduce the raised height dimension after the leveling process. As a direction in which the gas is ejected from the gas ejection slit 13 of the gas ejection device 7, as shown in FIG. As shown, there may be a case where a component in the same direction as the traveling direction of the substrate W is included, and a case where the component is along the vertical direction E of the substrate W as shown in FIG.

(Fifth embodiment)
Figure 9 shows a between Ketsunuri Engineering equipment 61 engages Ru to the fifth embodiment. Ketsunuri Engineering equipment 61 between Ru engaged to this embodiment differs greatly intermittent coating apparatus 62 is a point which has a reverse gravure coating method and the first embodiment, the first embodiment for the other parts 9. In FIG. 9, the same reference numerals as those shown in FIG. 1 to FIG.

  The intermittent coating device 62 includes a coating switching roll 63 formed on the outer peripheral surface 63a of the non-coating surface side Rd of the base material travel path R so as to be freely moved back and forth, and a coating on the base material travel path R. The rotational direction of the rotationally driven leveling roller 64 disposed downstream of the switching roll 63 and the rotational position of the coating switching roll 63 that is rotationally driven at a fixed position on the coating surface side Rc of the substrate traveling path R. The coating roll 65 and the coating switching roll 63 which are arranged so as to rotate in the same direction as the coating direction, are coated from the coating surface side Rc of the substrate traveling path R toward the non-coating surface side Rd. From the non-coating operation position F (a position indicated by a solid line in the figure) where the portion of the base material travel path R formed on the outer peripheral surface of the work switching roll 63 is separated from the coating roll 65, the base material travel path R Coating operation position to bring the part close to the outer peripheral surface of the coating roll 65 so that transfer coating is possible A coating switching roll operating device 66 that alternately repeats a coating operation to advance to I (position indicated by a broken line in the drawing) and a non-coating operation to retract the coating switching roll 63 in the reverse direction during this period; And a control device 69 that controls the operation of the operation device 65 for the coating switching roll and the opening and closing of the on-off valve 18 of the gas supply device 8. The coating roll 65 is composed of a gravure roll having a recess formed on the roll outer peripheral surface 65a.

  As an example of obtaining timing for issuing a valve opening signal to the on-off valve 18 of the gas supply device 8, the control device 69 performs leveling processing from the detection position of the base material traveling path R where the swell portion Q is detected by the detector 14. The timing is obtained by the time obtained by dividing the distance to the predetermined location Ra as the position by the traveling speed V of the base material W (the rotational speed of the outer peripheral surface of the leveling roller 64). The set time for blowing the gas G from the gas ejection slit 13 to the raised portion Q is determined according to the size of the raised portion Q, the viscosity of the coating agent, and the like.

Intermittent method using between Ketsunuri Engineering equipment 61, are alternately formed coating zone C and non-coated area D along the substrate travel direction S on an intermittent coating apparatus 62 on the surface of the substrate W to travel When the rising portion Q occurs in the coating end portion Cb of the coating area C, the gas jetted from the gas jetting slit 13 of the gas jetting device 7 is blown to the rising portion Q for a set time, and is leveled. It is to reduce the raised height dimension. As a direction in which the gas is ejected from the gas ejection slit 13 of the gas ejection device 7, as shown in FIG. As shown, there may be a case where a component in the same direction as the traveling direction of the substrate W is included, and a case where the component is along the vertical direction E of the substrate W as shown in FIG.

(Other embodiments)
Fourth Embodiment Embodiment between the (see FIG. 8) engaged Ru Ketsunuri Engineering equipment 51 and the fifth between Ketsunuri Engineering equipment 61 engaging Ru (see FIG. 9), a gas supply device provided to each 8 and it is also possible to replace the third embodiment the gas supply apparatus 38 provided on Ketsunuri Engineering equipment 31 while engaging Ru (see Figure 7).

  Further, the intermittent coating apparatus includes die coatings according to the first embodiment (FIGS. 1 to 5), the second embodiment (see FIG. 6), and the third embodiment (see FIG. 7). The method is not limited to the reverse kiss coating method according to the fourth embodiment (see FIG. 8) and the reverse gravure coating method according to the fifth embodiment (see FIG. 9), and the illustration is omitted. However, a gravure coating method, a reverse roll coating method, or the like that employs a coating method that generates a raised portion Q at the coating start end Ca or the coating end portion Cb of the coating area C may be employed. is there.

1 (21,31,41,61) ... between Ketsunuri Engineering facilities, 2 ... intermittent coating apparatus, 3 ... backing roll, 3a ... outer peripheral surface, 4 ... die coating bed, 4a ... discharge port, 5 ... coating Agent supply device, 5a ... control valve, 6 ... leveling device, 7 ... gas ejection device, 8 (38) ... gas supply device, 10 ... holder, 10a ... gas passage, 11 ... lip piece, 12 ... lip piece, DESCRIPTION OF SYMBOLS 13 ... Gas ejection slit, 14 ... Detector, 15 ... Gas source, 16 ... Gas supply path, 17 ... Pressure control valve, 18 ... On-off valve, 19 ... Controller, 20 ... Electric motor, 22 ... For leveling process Roll, 32 ... Pump, 33 ... Drive device, 33a ... Variable speed motor, 33b ... Transmission mechanism, 34 ... Check valve, 35 ... Check valve, 36 ... Cylinder, 36a ... Inside, 37 ... Piston, 39 ... Gas extrusion Equipment 42 ... Intermittent coating equipment 43 ... Base material feed roll 44 ... Top Flow side reference roll, 45 ... coating switching roll, 46 ... tension adjusting roll, 47 ... downstream reference roll, 48 ... coating roll, 48a ... roll outer peripheral surface, 49 ... coating switching roll operating device, 49a ... Driving source 50 ... Tension adjusting roll operating device 50a ... Drive source 51 ... Control device 62 ... Intermittent coating device 63 ... Coating switching roll 63a ... Roll outer peripheral surface 64 ... Rolling roller , 65 ... coating roll, 65a ... outer peripheral surface, 66 ... operating device for coating switching roll, 69 ... control device, A ... non-coating operation position, B ... coating operation position, C ... coating area, Ca ... Coating start end, Cb ... coating end, D ... non-coating area, E ... roll radius direction (perpendicular to substrate W), F ... non-coating operation position, G ... gas, H ... distance, I ... Coating operation position, J ... Center line, K ... Tangent, L ... Distance, M ... Arrow, N ... Arrow (Reverse) ), P ... arrows (indicating the forward direction), Q ... swelling portion, R ... base material traveling path, Ra ... predetermined location (location that becomes the leveling processing position of the swelling portion Q), Rb ... start of coating Position, Rc: coated surface side, Rd: non-coated surface side, S: substrate running direction, T: thickness dimension, U: rotational direction, V: substrate running speed, W: substrate, Y: non-coated Operation position, Z: Coating operation position, θ: Spray angle

Claims (1)

When intermittently forming a coating area and a non-coating area along the substrate traveling direction on the surface of the substrate traveling on the substrate traveling path with an intermittent coating device provided in the middle of the substrate traveling path In the intermittent coating equipment in which a swelled portion occurs at the coating start end or coating end of the coating area,
A gas jetting device having a gas jetting slit for jetting gas toward a predetermined portion of the substrate traveling path through which the swell portion passes, and a gas for supplying the gas jetted from the gas jetting slit to the gas jetting device for a set time A supply device ,
The gas supply device includes a cylinder that communicates with the gas ejection device through a check valve and a gas source that communicates with the gas source through the check valve, and a piston that is fitted in the cylinder, and moves forward and backward. An intermittent system comprising: a pump for taking gas into the cylinder from a source and supplying the gas inside the cylinder to the gas ejection device as the piston moves forward; and a variable speed motor for moving the piston forward and backward. Coating equipment.

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