JP3147270B2 - Method and apparatus for manufacturing pressure diagnostic sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a pressure diagnostic sheet in which a pressure-sensitive sheet of a predetermined shape is sandwiched between a pair of waterproof sheets and the waterproof sheets are adhered to each other so as to surround the outer periphery of the pressure-sensitive sheet.
Method and apparatus.

[0002]

2. Description of the Related Art A pressure-sensitive sheet obtained by applying a color developing agent to one surface of a sheet-shaped synthetic resin support, and further applying a microencapsulated color forming agent on this color developing agent coating layer.
It is conventionally known to use it for occlusal pressure measurement in the department .
The pressure-sensitive sheet are those which the color density by the size of the pressure (occlusal pressure) changes, are used to determine the pressure (occlusal pressure) by measuring the color density reversed.

[0003]

However, the pressure-sensitive sheet is liable to adhere to a liquid such as water or oil or a gas such as vapor or gas depending on the use conditions, and the color-forming conditions may change.
In such a case, there is a problem that it is impossible to obtain an accurate pressure because the color density also changes.

Therefore, it is conceivable to cover both sides of the pressure-sensitive sheet with a transparent waterproof sheet. But pressure sensitive sheet is very
Not only is it thin and easy to bend, but its surface is smooth and smooth.
Pressure-sensitive sheet if it is simply sandwiched between waterproof sheets.
Is easy to move and bend. So pressure-sensitive sea
It is conceivable to attach the sheet to the waterproof sheet. However, if an adhesive is applied to the surface on which the color developing agent or the color developing agent is applied, the color developing condition changes, which is not desirable .

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and when a pressure-sensitive sheet is covered with a waterproof sheet ,
The pressure-sensitive sheet does not move between the tarpaulins, and the coloring condition
It is a first object of the present invention to provide a method for efficiently manufacturing a pressure diagnostic sheet in which the pressure does not change . Also
It is necessary to provide an apparatus that can be used directly to implement this method.
This is the purpose of 2.

[0006]

According to the present invention, a first object is to provide a support for
Specimen with a color developer and color former applied to one side
Cover both sides of the pressure sheet with a tarpaulin,
The peripheral edges are adhered to each other so as to surround the outer periphery of the pressure-sensitive sheet.
The method for producing a pressure diagnostic sheet, comprising:
Forming a die-cut pressure-sensitive sheet, (b)
Pressure-sensitive sheet with adhesive on its support side
Laminated with a transparent waterproof sheet on the other surface while adhering to
And (c) sandwiching the laminate outside the pressure-sensitive sheet.
Press the two tarpaulins together and press
Die-cut into a shape larger than the specified pressure-sensitive sheet.
And a method of manufacturing a pressure diagnostic sheet characterized by the above.

[0007] The second object is both the pressure-sensitive sheet of a predetermined shape coated with a color developer and color former on one surface of the support
A pressure diagnostic sheet manufacturing apparatus in which the surfaces are covered with a waterproof sheet, and the peripheral edges of both waterproof sheets are adhered to each other so as to surround the outer periphery of the pressure-sensitive sheet. A die-cut roller for die-cutting a predetermined-shaped pressure-sensitive sheet from the supplied belt-shaped pressure-sensitive sheet and continuously feeding the pressure-sensitive sheet onto a transport line, and superimposed on the support-side surface of the die-cut pressure-sensitive sheet having the predetermined shape. A supply roll of a waterproof sheet with an adhesive, a supply roll of a transparent waterproof sheet to be superimposed on another surface, and a pressure-sensitive sheet of a predetermined shape sent from the die cut roller are sandwiched between the two types of waterproof sheets. A pair of sandwiching rollers that are continuously delivered as a laminate, and the laminate outside the pressure-sensitive sheet.
It is characterized in that it comprises a cutter for pressing the two waterproof sheets together and pressing the two waterproof sheets together to form a shape larger than the pressure-sensitive sheet having the predetermined shape, and a winding roll for winding the remaining band-shaped laminated body cut by the cutter. This is achieved by a pressure diagnostic sheet manufacturing apparatus.

[0008] Here, since the cutter is die-cut while sandwiching the laminated body outside the pressure-sensitive sheet , the waterproof sheets on both sides can be securely bonded . Used here
The cutter has a predetermined width between the pressure-sensitive sheet and the outer circumference.
Fixing formed to surround the gap leaving the inside open downward
An outer blade; mounted vertically inside the fixed outer blade,
Holding the upper edge of a fixed width along the inner peripheral edge of the fixed outer blade,
Upper edge protrudes a predetermined amount above the upper edge of the fixed outer blade.
Movable member provided with return behavior as described above;
It has a blade that protrudes downward facing the upper edge and is movable with this blade
While holding the laminate outside the pressure-sensitive sheet between
Upper inner blade that cuts the laminate between the upper edge of the outer blade and the inner edge
And; provided on the upper inner blade, the upper inner blade cooperates with the fixed outer blade.
After working to cut the laminate, the cut laminate is
A push rod for pushing downward from the inside of the movable member;
The pressure diagnostic sheet manufacturing apparatus according to claim 1,
Can be achieved. In this case, the end of the push rod
Has a smooth curved surface to prevent color development of the pressure sensitive sheet
It is better to attach an elastic material .

[0009]

1 is an overall view of one embodiment of the present invention, FIG. 2 is a side sectional view of a cutter used in the embodiment, FIG. 3 is a view showing an operation state thereof, and FIG. 4 is a pressure diagnostic sheet for occlusal force diagnosis . Plan view of the
FIG. 5 is a sectional view showing the structure. In FIG. 5, reference numeral 10 denotes a sheet-shaped support made of synthetic resin, for example, a PET (polyethylene terephthalate) film having a thickness of 25 μm is used. Reference numeral 12 denotes a developer coating layer, which is formed by applying a solution obtained by dispersing an acid clay (montmorillonite) sulfuric acid-treated product in water containing caustic soda to one surface (surface) of the support 10 and drying the solution. is there.

Reference numeral 14 denotes a color-developing agent coating layer formed on the color-developing agent coating layer 12, which is formed by dissolving a color developing agent such as 1-phenyl-1-xylylethane in oil and microencapsulating the same. is there. Here, the microcapsules are adjusted to various strengths, and the microcapsules to be destroyed change according to the pressure. When the microcapsules are destroyed by the pressure, the color developing agent therein is absorbed by the color developing agent together with the oil to form a color. In this embodiment, the color is red. The color density increases with increasing pressure.

As described above, the support 10 and the developer coating layer 1
A pressure-sensitive sheet 15 is formed of the color-developing agent coating layer 14 and the color-forming agent coating layer 14, and the pressure-sensitive sheet 15 is cut out in a substantially horseshoe shape as shown by a broken line in FIG. This shape is determined to substantially follow the shape of the human dental arch.

Reference numeral 16 denotes a back waterproof sheet, which is formed of the same PET film as the support 10, for example, a transparent film of about 16 μm. An adhesive type paste is applied to one surface of the back waterproof sheet 16 to form an adhesive layer 18. The back waterproof sheet 16 is attached to the support 10 by the adhesive layer 18.
(The surface opposite to the developer application layer 12).

Reference numeral 20 denotes a front waterproof sheet, which is formed of a transparent PET film of about 16 μm in the same manner as the back waterproof sheet 16. The front waterproof sheet 20 is superimposed on the coloring agent coating layer 14, and extends along the outer periphery of the support 10.
6 is adhered to the adhesive layer 18. In this case, both waterproof layers 16
It is desirable to sufficiently reduce the pressure and maintain a vacuum between the steps 20 and 20.

The occlusal force diagnostic sheet 22 is formed by covering the substantially horseshoe-shaped pressure-sensitive sheet 15 with the waterproof sheets 16 and 20 and bonding the peripheral edges. The occlusal pressure diagnostic sheet 22 includes a back waterproof sheet 16 and a front waterproof sheet 20.
And will be sealed. For this reason, the water resistance is improved, and even if the saliva adheres in the oral cavity, there is no influence on the coloring property, and the reliability is increased.

Since one waterproof sheet 16 is adhered to the back surface of the support 10, the back waterproof sheet 16 does not peel off or move with respect to the support 10. Therefore, the front waterproof sheet 20 whose periphery is adhesively fixed to the back waterproof sheet 16 also does not move with respect to the support 10.

The occlusal force diagnostic sheet 22 is placed in the open mouth of the patient, and is mounted so as to be aligned and uniformly contact the upper part of the upper dentition. When the patient bites quietly, the pressure applied between the upper and lower teeth is applied to the pressure-sensitive sheet 15, and only the portion where the pressure is applied develops a color according to the magnitude of the pressure.

The dentist can immediately know the distribution of the occlusal force by looking at the density of the developed color. Therefore, an accurate diagnosis of the occlusal state can be made while looking at the sheet 22, and a treatment policy can be determined correctly.

Next, an apparatus for manufacturing the occlusal force diagnostic sheet 22 will be described with reference to FIGS. In FIG.
Is a belt-shaped pressure-sensitive sheet, which is continuously supplied from a supply roll 52 onto a horizontal transport line A via a transport roller 54. The pressure-sensitive sheet 50 moves on the transport line A with the application surface of the color developer and the color developer facing upward, and enters the die cut roller 56.

The die cut roller 56 cuts out the substantially horseshoe-shaped pressure-sensitive sheet 15 and continuously sends it out onto the transport line A. That is, a pair of upper and lower cut rollers 56a,
A pair of male and female mold blades corresponding to the shape of the pressure-sensitive sheet 15 are formed in an arc shape along the outer circumference at 56b, and the pressure-sensitive sheet 50 is cut into a predetermined shape while passing between these cut rollers 56a and 56b. It is.

The strip-shaped pressure-sensitive sheet 50A after die-cutting
Is separated downward along the outer peripheral surface of the lower roller 56b, and is taken up by the take-up roller 60 via the guide roller 58. The pressure-sensitive sheet 15 cut into a predetermined shape is sandwiched between a pair of upper and lower transport rollers 62a and 62b and guided between a pair of upper and lower sandwich rollers 64a and 64b.

A transparent band-shaped waterproof sheet 66 with an adhesive is supplied from below to the lower sandwiching roller 64b along the lower surface of the pressure-sensitive sheet 15. That is, the waterproof sheet 66
Is supplied from the supply roll 70 in a state where the protective sheet 68 is adhered to the adhesive applied surface, and the peeling roller 72 in the middle is supplied.
The protective sheet 68 is peeled off and sent to the sandwiching roller 64b. The peeled protective sheet 68 is taken up by a take-up roll 73.

A band-shaped waterproof sheet 74 to which no adhesive is applied is applied to the upper sandwiching roller 64a from above.
Are supplied along the top surface of The waterproof sheet 74 is supplied from a supply roll 78 in a state where the protective sheet 76 is in close contact with one surface thereof. Then, the protective sheet 76 is sent to the sandwiching roller 64a while being peeled by the peeling roller 80. The peeled protective sheet 76 is taken up by a take-up roller 82.

As described above, the pressure-sensitive sheet 15 has two waterproof sheets 66 with an adhesive on the support 10 side and a waterproof sheet 74 without the adhesive on the opposite side. It is sandwiched between the belt-shaped waterproof sheets 66 and 74. As a result, a band-shaped laminate 84 is formed. At this time, the sandwiching rollers 64a, 64b are connected to both waterproof sheets 66, 74.
The air between them is pushed out, and the pressure-sensitive sheet 15 is sealed between the waterproof sheets 66 and 74 in a substantially vacuum state.

The band-shaped laminated body 84 in which the pressure-sensitive sheet 15 is sealed is sent to the cutter 88 via the tension roller 86. That is, the tension roller 86 is provided between the pair of upper and lower rollers 90a, 90b and 92a, 92b so as to be vertically movable, and absorbs the slack of the laminated body 84 by the weight of the tension roller 86.

The cutter 88 is, as shown in FIG.
4 and a lower outer blade 96 facing above the lower outer blade 94 with the laminated body 84 interposed therebetween. Lower outer blade 94
Of the pressure-sensitive sheet 15 is formed so as to surround the pressure-sensitive sheet 15 on the outer periphery thereof, leaving a gap of a predetermined width.

A movable member 98 having a constant width along the inner peripheral edge is mounted on the inner peripheral edge of the lower outer blade 94 so as to be vertically movable. The movable member 98 includes a compression coil spring 100
Gives an upward return behavior, and in the return state, FIG.
As shown in FIG. 7, the lower outer blade 94 projects slightly upward from the upper edge. Reference numeral 102 denotes a stopper that regulates the lowering position of the movable member 98.

The upper inner blade 96 has a blade 96a protruding downward facing the upper surface of the movable member 98. A push rod 104 is inserted into the upper inner blade 96 from above so as to be vertically movable. Flanges 106 and 108 are fixed to the upper and lower ends of the push rod 104, respectively.
A coil spring 110 is contracted between the inner spring 96 and the upper inner blade 96.

Reference numeral 112 denotes a cam shaft, which is a push rod 1
The push rod 104 is intermittently pushed down by sliding contact with the flange 106 at the upper end of the push rod 104. The coil spring 110
Has a sufficiently higher spring force than the coil spring 100 that pushes up the movable member 98.

For this reason, the cam shaft 112 is
04, the upper inner blade 96 is first pushed down,
The blade 96a sandwiches the stacked body 84 between the stacked body 84 and the movable member 98. When the upper inner blade 96 is further lowered, the movable member 98 is pushed down, and the laminated body 84 is moved to the lower outer blade 94 and the blade 9 of the upper inner blade 96.
6a.

The sheared laminate 84 serves as the occlusal force diagnostic sheet 22 shown in FIG. 4, and its outer peripheral edge is held between the movable member 98 and the blade 96a. The cam shaft 112 further rotates and the push rod 104
Is further lowered, the movable member 98 pushed down by the upper inner blade 96 comes into contact with the stopper 102, and thereafter, only the push rod 104 moves down while compressing the coil spring 110.

For this reason, the laminated body 84 from which the flange 108 at the lower end of the push rod 104 is die-cut, that is, the occlusal force diagnostic sheet 22 is pushed down, and the outer peripheral edge thereof is moved to the movable member 98.
And the blade 96a to release it. The die-cutting occlusal force diagnostic sheet 22 is cut at the outer periphery and simultaneously pressed at the outer periphery to form upper and lower waterproof sheets 74, 66.
Is securely bonded at the periphery. Push rod 104
In order to prevent the pressure-sensitive sheet 15 from developing color, it is preferable that the lower surface of the lower flange 108 has a smooth curved surface or that an elastic material such as sponge or rubber is adhered.

The extracted occlusal force diagnostic sheet 22 falls onto a belt conveyor 114 disposed so as to cross below the lower outer blade 94. When a predetermined number of the occlusal force diagnostic sheets 22 accumulate on the belt conveyor 114, the belt conveyor 114 is activated and carried out. The strip-shaped laminated body 84A after die-cutting is a pair of upper and lower transport rollers 116,
The sheet is intermittently fed by 18, and is taken up by a take-up roller 122 via a roller 120.

The transport roller 118 rotates intermittently in synchronism with the cutter 88. Further, it is needless to say that the conveying roller 118 needs to align the pressure-sensitive sheet 15 of the laminated body 84 with the cutter 88.
The present invention includes an apparatus used for manufacturing various pressure diagnostic sheets other than the occlusal force diagnostic sheet.

[0034]

[Effect of the Invention] The invention of claim 1, as described above, a predetermined type
Jo the molding pressure sensitive sheets punched surface of the support side
Glued to the waterproof sheet with adhesive while clear on the other side
A laminate is formed by stacking waterproof sheets, and this laminate is pressure-sensitive.
Since the two waterproof sheets are pressed against each other with the adhesive of one of the waterproof sheets while being pressed against the outside of the sheet and the outside of the waterproof sheet is die-cut into a shape larger than the pressure-sensitive sheet having the predetermined shape, the waterproof sheet is used for waterproofing . A pressure diagnostic sheet having a shape can be efficiently manufactured. In this case,
Bends because it is adhesively fixed to one of the tarpaulins.
Adhesive does not move or move.
Coloring conditions do not change because of contact with the support
No.

According to the second aspect of the present invention, the method is implemented.
Thus, a manufacturing apparatus to be directly used for the apparatus can be obtained. Here is the cutter
Since stamped while crimping both tarpaulin comrades while sandwiching the laminate outside of the pressure-sensitive sheet, the pressure-sensitive sheet without coloring the pressure-sensitive sheet by the pressure can be reliably sealed. According to the third aspect of the present invention, it is preferable to use here.
A manufacturing apparatus having a suitable cutter can be obtained.

[Brief description of the drawings]

FIG. 1 is an overall view of an embodiment of the present invention.

FIG. 2 is a side sectional view of a cutter.

FIG. 3 is a diagram showing an operation state thereof;

FIG. 4 is a plan view of an occlusal force diagnostic sheet.

FIG. 5 is a sectional view of an occlusal force diagnostic sheet.

[Explanation of symbols]

REFERENCE SIGNS LIST 10 support 12 developer application layer 14 color former application layer 15 pressure-sensitive sheet 16 back waterproof sheet 18 adhesive layer 20 front waterproof sheet 22 occlusal force diagnostic sheet 50 belt-shaped pressure-sensitive sheet 52 belt-shaped pressure-sensitive sheet supply roll 56 die cut Rollers 64a, 64b Nipping Rollers 66, 74 Waterproof Sheets 70, 78 Waterproof Sheet Supply Rolls 84 Banded Laminates 88 Cutters 94 Lower Outer Blades 96 Upper Inner Blades 96a Blades 98 Movable Members 104 Push Rods 122 Winding Rolls

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-99569 (JP, A) JP-A-4-265744 (JP, A) JP-A-2-6131 (JP, A) JP-A-4-199 344239 (JP, A) Japanese Utility Model Hei 4-32710 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G01L 5/00

Claims (3)

(57) [Claims] 1. A color developer and a color former on one surface of a support
Apply a waterproof sheet on both sides of the pressure-sensitive sheet
Cover the outer periphery of the pressure-sensitive sheet
With the method of manufacturing pressure diagnostic sheets adhered to each other to surround
(A) Forming a pressure-sensitive sheet die-cut into a predetermined shape
(B) placing the pressure-sensitive sheet of predetermined shape on the surface of the support side;
Adhering to the waterproof sheet with adhesive while clear on the other surface
Laminate the waterproof sheet to form a laminate, and (c)
Press the outside of the pressure-sensitive sheet to press the two waterproof sheets together.
The outer side of the sheet is larger than the predetermined type of pressure-sensitive sheet while being worn.
Pressure diagnostic sheet characterized by die-cutting into a sharp shape
Manufacturing method. 2. A pressure-sensitive sheet having a predetermined shape in which a color developing agent and a color developing agent are applied to one surface of a support is covered on both sides with a waterproof sheet, and the periphery of both waterproof sheets is surrounded by the outer periphery of the pressure-sensitive sheet. a pressure diagnostic sheet production apparatus adhered to each other so
There are a supply roll of the belt-like pressure-sensitive sheet, a die cut roller for continuously delivering the pressure-sensitive sheet of a predetermined shape from a strip-shaped pressure sensitive sheet supplied from the supply roll die cutting and on the conveying line, stamped A supply roll of a waterproof sheet with an adhesive, which is superimposed on the support-side surface of the pressure-sensitive sheet having the predetermined shape, a supply roll of a transparent waterproof sheet, which is superimposed on another surface, and a predetermined shape which is sent out from the die cut roller. A pair of sandwiching rollers for continuously sending out the pressure-sensitive sheet between the two types of waterproof sheets as a band-shaped laminate,
Both waterproof sheets sandwiching the laminate outside the pressure-sensitive sheet
A cutter for cutting the outside into a shape larger than the pressure-sensitive sheet of the predetermined shape while pressing the members together, and a winding roll for winding the remaining band-shaped laminate cut by the cutter. Pressure diagnostic sheet manufacturing equipment. 3. The cutter surrounds the pressure-sensitive sheet while leaving a gap of a predetermined width between the pressure-sensitive sheet and the outer periphery thereof.
A fixed outer blade formed so as to have a downwardly open inner side; and being mounted inside the fixed outer blade so as to be movable up and down,
It has a constant width upper edge along the inner peripheral edge of the outer cutter, and this upper edge
In so that projecting a predetermined amount upward from the upper edge of the fixed outer cutter
A movable member having a return behavior; a blade having a downwardly projecting blade facing the upper edge of the movable member ;
Between the blade and the movable member, outside the pressure-sensitive sheet.
While holding, cut the laminate between the inner edge of the upper surface of the fixed outer blade.
The upper inner cutter that; provided in the upper inner edge, this upper inner edge cooperates with the fixed outer cutter
After cutting the laminate, move the cut laminate
3. The pressure diagnostic sheet manufacturing apparatus according to claim 2, further comprising: a push rod that is pushed downward from inside the member .