CA3022945A1 - Automatic start stop - Google Patents
Automatic start stop Download PDFInfo
- Publication number
- CA3022945A1 CA3022945A1 CA3022945A CA3022945A CA3022945A1 CA 3022945 A1 CA3022945 A1 CA 3022945A1 CA 3022945 A CA3022945 A CA 3022945A CA 3022945 A CA3022945 A CA 3022945A CA 3022945 A1 CA3022945 A1 CA 3022945A1
- Authority
- CA
- Canada
- Prior art keywords
- reinforcing
- laminating machine
- tape
- tear
- tear tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
- B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B41/00—Arrangements for controlling or monitoring lamination processes; Safety arrangements
- B32B41/02—Safety arrangements
Abstract
The present invention concerns the automatic start of a hot melt coated tape into a laminating machine.
Description
SUMMARY OF THE INVENTION
According to one embodiment of this invention, a pneumatic cylinder is used to press a pressure wheel against the laminated layer, so the hot melt tape is put in contact with the laminated layer. The pressure wheel and pneumatic cylinder are small enough so that they can be installed at the exit of each guide arm of a Guide Arm System. The hot melt tape is positioned at the exit of the guide arm and is hold in place by the pressure wheel.
Also a piece of double sided pressure sensitive tape is attached to the leading end of the hot melt tape, so when the hot melt tape is released by the pneumatic cylinder and at the same time the pressure wheel is used to press the hot melt tape against the laminate, the double sided pressure sensitive tape will hold the hot melt tape securely to the laminate so that the hot melt tape will be permanently fixed to the laminate and carried inside the laminating machine. To assure the correct contact between the hot melt tape and the laminate and to apply a precise pressure so that the double-sided pressure sensitive tape is correctly bonded to the laminate, a back up roll is used on the back face of the laminate.
The Start Stop system is operated by the laminating machine operator from outside the laminating machine, thus providing a safe working environment.
When the hot melt tape has been correctly started in the laminating machine, the pressure roll can be retracted to reduce the tension in the delivery of the hot melt tape. Finally, when the use of the hot melt tape is complete, the pneumatic cylinder can be used to cut the tape and hold it in place at the exit of the guide arm until the Guide Arm System is removed from the laminating machine.
This embodiment can be used between two (2) layers of laminate, or on top of a single side of a laminate. It can also be used to assure the orientation top or down of the hot melt tape for the tape that have different top and bottom sides.
According to still another embodiment of this invention, a deployment system can be used at the exit of the guide arms of the Guide Arm System so that a piece of carboard can be hold in place and extended toward the nip of the laminating machine. On this cardboard, the leading ends of each hot melt tape have been previously bonded with double sided pressure sensitive tapes. All this is done prior to inserting the Guide Arm System into the laminating machine. Once the Guide Arm System is inserted and the laminating machine is ready to accept the hot melt coated tapes, the deployment system with the installed cardboard holding the tapes is activated by the operator from outside the laminating machine. The deployment system is operated until the leading edge of the cardboard is caught by the nip of the two (2) laminate in the laminating machine, or by the nip created by the top laminate and the pressure belt carrying the combined laminate into the laminating machine. The deployment system is operated by the laminating machine operator from outside the laminating machine, thus providing a safe working environment. This embodiment can also maintain the orientation top or down of the hot melt tape and can be used without stopping the laminating machine or corrugator.
According to one embodiment of this invention, a pneumatic cylinder is used to press a pressure wheel against the laminated layer, so the hot melt tape is put in contact with the laminated layer. The pressure wheel and pneumatic cylinder are small enough so that they can be installed at the exit of each guide arm of a Guide Arm System. The hot melt tape is positioned at the exit of the guide arm and is hold in place by the pressure wheel.
Also a piece of double sided pressure sensitive tape is attached to the leading end of the hot melt tape, so when the hot melt tape is released by the pneumatic cylinder and at the same time the pressure wheel is used to press the hot melt tape against the laminate, the double sided pressure sensitive tape will hold the hot melt tape securely to the laminate so that the hot melt tape will be permanently fixed to the laminate and carried inside the laminating machine. To assure the correct contact between the hot melt tape and the laminate and to apply a precise pressure so that the double-sided pressure sensitive tape is correctly bonded to the laminate, a back up roll is used on the back face of the laminate.
The Start Stop system is operated by the laminating machine operator from outside the laminating machine, thus providing a safe working environment.
When the hot melt tape has been correctly started in the laminating machine, the pressure roll can be retracted to reduce the tension in the delivery of the hot melt tape. Finally, when the use of the hot melt tape is complete, the pneumatic cylinder can be used to cut the tape and hold it in place at the exit of the guide arm until the Guide Arm System is removed from the laminating machine.
This embodiment can be used between two (2) layers of laminate, or on top of a single side of a laminate. It can also be used to assure the orientation top or down of the hot melt tape for the tape that have different top and bottom sides.
According to still another embodiment of this invention, a deployment system can be used at the exit of the guide arms of the Guide Arm System so that a piece of carboard can be hold in place and extended toward the nip of the laminating machine. On this cardboard, the leading ends of each hot melt tape have been previously bonded with double sided pressure sensitive tapes. All this is done prior to inserting the Guide Arm System into the laminating machine. Once the Guide Arm System is inserted and the laminating machine is ready to accept the hot melt coated tapes, the deployment system with the installed cardboard holding the tapes is activated by the operator from outside the laminating machine. The deployment system is operated until the leading edge of the cardboard is caught by the nip of the two (2) laminate in the laminating machine, or by the nip created by the top laminate and the pressure belt carrying the combined laminate into the laminating machine. The deployment system is operated by the laminating machine operator from outside the laminating machine, thus providing a safe working environment. This embodiment can also maintain the orientation top or down of the hot melt tape and can be used without stopping the laminating machine or corrugator.
2. Description of the Prior Art Reinforcing tapes or tear tapes are often used in the construction of modern packaging. To introduce these tapes into the manufacture of cardboard, different types of dispensers have been developed over the years. To obtain the necessary efficiency dictated by today's industrial equipment, different improvements have been made, such as automatic splicing to splice one roll of the hot melt coated tape or an automatic guide arms to precisely position the hot melt coated tapes into the laminating machine.
As in all industrial environment an emphasis has been put into the operator safety while operating laminating machines. Access to the moving parts and the moving web of the laminating machines is being largely limited. This causes an issue with the hot melt coated tapes used in these processes.
Until now to start production of packaging using hot melt coated tape into a laminating machine, the machine had to be stopped, the Guide Arm System had to be inserted inside the laminating machine. The hot melt tapes had been previously threaded into the Guide Arm System and tied together into a knot at the exit of the Guide Arm System. Then while the laminating machine is being started, the operator uses the hot melt tapes tied together into a knot and toss it and them into the laminating machine.
When the knot of tapes is being caught by the nip of two (2) layers or webs comprising the laminated board, the tapes are carried into the laminating machine thus starting the process.
Naturally in today's safety conscious world, this is not acceptable anymore.
But automatically starting the production of hot melt coated tapes in a laminating machine is not so simple. Many manufacturers have tried to develop automatic starters with very limited success. So much so, that almost all hot melt tapes users are still using the old method of throwing a knot of tapes into the laminating machine or corrugating machine.
If we look at the current Prior Art, we can see Published Application W0201216458 where a lever is used to position the hot melt tape against one (1) layer of the laminate and bonded to the laminate using a piece of double sided pressure sensitive adhesive tape. We can also see US Patent #9669588 where the leading end of the hot melt tape is put into a ball and inserted in a air cannon. Using air pressure, the ball of tape is tossed into the laminating machine hoping that it will be caught by the nip of two (2) layers of the laminated board, effectively mimicking the operation done by the machine operator in the current Prior Art.
Both examples have many flaws. For example, for the first one, the position of both laminates can change depending on the operation of the laminating machine. Then the exact position needed to establish contact between the tape and the laminate with not be possible. Also the use of double sided pressure sensitive tape to bond the hot melt tape to the laminate will not be efficient enough to assure a correct start at all time, a requisite of the process.
For US #9669588, the use of an air cannon is not precise. There is no guarantee to guide the tape precisely at the right place, so it will be correctly caught by the nip on the laminates in the laminating machine. The tape can be toss too much left or right, top or bottom so it will not reach the nip. Also, this system cannot be used when the hot melt tape has two (2) different sides and the orientation up and down must be maintained.
Finally, both systems cannot be used when the hot melt tape must be started on top face of the laminate or web that is in the top position.
It is the object of this invention to fulfill these and other needs.
The preceding embodiments and the advantages of the present invention will be more apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be described with reference to the accompanying drawing wherein:
FIG. 1 shows the Guide Arm Assembly with the Start Stop Mechanism positioned inside the laminating machine, between two (2) webs before the formation of the laminate FIG. 2 shows the operation of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 3 shows the front view of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 4 shows the back view of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 5 shows the Guide Arm Assembly with the deployment system positioned inside the laminating machine, between two (2) webs before the formation of the laminate FIG. 6 shows the deployment system by itself in the collapsed position.
FIG. 7 shows the deployment system by itself in the extended position.
FIG. 8 shows the deployment system installed under the Guide Arm Assembly in the collapsed position.
FIG. 9 shows the deployment system installed under the Guide Arm Assembly in the extended position.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Looking first at FIG. 1, we see the laminating machine with frames #1 and two (2) webs #2A and 2B that will be joined together to form the laminate. The Guide Arm Assembly #3 is positioned between the top web #2A and the bottom web #2B so that the tape can be inserted into the laminate. The Guide Arm Assembly 43 can also be positioned on top of the top web #2A if the need to position the tape on top of the laminated is required.
A backup roll #9 is present under the bottom web #2B so that the tape can be applied to the web #2B with the adequate pressure.
In FIG. 2 we can see the actual operation of the Start Stop Mechanism. In FIG.
2A we see the tape #4 being run on the pulleys #10A, 10B & 10C to guide the tape #4 at the right position inside the laminate. In Fig #5A, the tape is hold into standby position by the lever #11 of the Start Stop Mechanism against the pulley #10C. A small length of the tape #4 is extending after the pulley #10C and a piece of double sided pressure sensitive adhesive tape #19 is attached under the tape #4 and both are hold in place the pulley #10.
In FIG. 2B, we see the Start Stop Mechanism being activated. The pulley #10C
is being moved against the bottom web #2B and the pulley #10C is applying pressure against the tape #4 the double sided pressure sensitive tape #19 and the bottom web #2B, thus bonding the tape #4 to the web #2B.
In FIG. 2C, we see the tape #4 being carried forward from the pulley #10C just as the lever #11 is releasing the tape #4 against the pulley #10C. From that moment on, the tape #4 is started and being continuously feed into the laminating machine.
In FIG. 2D, we see that once the application of the tape #4 into the laminating machine is done, it can be stopped by moving back the pulley #10C in the top position, the lever #11 is again holding the tape #4 against the pulley #10C and the tape #4 exiting the pulley #10C in a higher position is coming into contact with knife #8, thus cutting the tape #4 stopping the continuous supply of the tape #4 into the laminating machine.
In FIG. 3, we can see a detailed from view of the Start Stop Mechanism on the Guide Arm Assembly with the Pulleys #10A, #10B and 10C, the Knife #8 and the bottom web #2B.
In FIG. 4, we see a detailed view of the back of the Start Stop Mechanism on the Guide Arm Assembly with the Pulleys #10A, #10B and #10C and the lever #11 and the Pneumatic Cylinder #6.
We can see our second preferred embodiments the following figures.
In FIG. 5 we see the Laminating machine with frames #1 and two (2) webs #2A
and 2B
that will be joined together to form the laminate. The Guide Arm Assembly with the Deployment System #12 is positioned between the top web #2A and the bottom web #2B
so that the tape can be inserted into the laminate. The Guide Arm Assembly with the Deployment System #12 can also be positioned on top of the top web #2A if the need to position the tape on top of the laminated is required.
In FIG. 6 we can see the details of the Deployment System #12A in the collapsed position without the Guide Arm Assembly. To hold the tapes #4 into position, a piece of cardboard #13 of the adequate dimensions is positioned at the exist of the Deployment System and is hold in place by the Support Clips #8. The tapes #4 are attached on top of the Cardboard Piece #13 by pressure sensitive tapes or other means. The tapes #4 have previously been run into the pulleys of the Guide Arm Assembly # 10A, 10B and 10C.
When the tapes #4 are ready to be put into operation on the laminating machine, the motor #14 is activated which turns the screw #15 that pushed the accordeons #17 thus extending the slides #16 until the Deployment System #12A is in the extended position.
In FIG. 7 and 9, we can see the Deployment System #12A in the extended position. At which point the Cardboard #13 has reached the nip point between web #2A and web #2B
and is being caught by the nip point thus carrying the cardboard #14 and the tapes #4 into the laminating machine. Once the tapes #4 have been introduced into the laminating machine with the cardboard #13, the Deployment System #12A is no longer necessary and can be retracted to the collapsed position as shown in Fig #6.
Having described and illustrated the principles of our invention with reference to a preferred embodiment, it will be apparent to those having skill in the art that the invention can be modified in arrangement and detail without departing from such principles.
In view of theses and the wide range of other embodiments to which the concepts of the present invention can be applied, it should be recognized that the foregoing description is illustrative only and is not to be construed as limiting the scope of the invention. Instead, we claim as our invention all such modifications as may come within the scope and spirit of the following claims and equivalents thereof.
As in all industrial environment an emphasis has been put into the operator safety while operating laminating machines. Access to the moving parts and the moving web of the laminating machines is being largely limited. This causes an issue with the hot melt coated tapes used in these processes.
Until now to start production of packaging using hot melt coated tape into a laminating machine, the machine had to be stopped, the Guide Arm System had to be inserted inside the laminating machine. The hot melt tapes had been previously threaded into the Guide Arm System and tied together into a knot at the exit of the Guide Arm System. Then while the laminating machine is being started, the operator uses the hot melt tapes tied together into a knot and toss it and them into the laminating machine.
When the knot of tapes is being caught by the nip of two (2) layers or webs comprising the laminated board, the tapes are carried into the laminating machine thus starting the process.
Naturally in today's safety conscious world, this is not acceptable anymore.
But automatically starting the production of hot melt coated tapes in a laminating machine is not so simple. Many manufacturers have tried to develop automatic starters with very limited success. So much so, that almost all hot melt tapes users are still using the old method of throwing a knot of tapes into the laminating machine or corrugating machine.
If we look at the current Prior Art, we can see Published Application W0201216458 where a lever is used to position the hot melt tape against one (1) layer of the laminate and bonded to the laminate using a piece of double sided pressure sensitive adhesive tape. We can also see US Patent #9669588 where the leading end of the hot melt tape is put into a ball and inserted in a air cannon. Using air pressure, the ball of tape is tossed into the laminating machine hoping that it will be caught by the nip of two (2) layers of the laminated board, effectively mimicking the operation done by the machine operator in the current Prior Art.
Both examples have many flaws. For example, for the first one, the position of both laminates can change depending on the operation of the laminating machine. Then the exact position needed to establish contact between the tape and the laminate with not be possible. Also the use of double sided pressure sensitive tape to bond the hot melt tape to the laminate will not be efficient enough to assure a correct start at all time, a requisite of the process.
For US #9669588, the use of an air cannon is not precise. There is no guarantee to guide the tape precisely at the right place, so it will be correctly caught by the nip on the laminates in the laminating machine. The tape can be toss too much left or right, top or bottom so it will not reach the nip. Also, this system cannot be used when the hot melt tape has two (2) different sides and the orientation up and down must be maintained.
Finally, both systems cannot be used when the hot melt tape must be started on top face of the laminate or web that is in the top position.
It is the object of this invention to fulfill these and other needs.
The preceding embodiments and the advantages of the present invention will be more apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be described with reference to the accompanying drawing wherein:
FIG. 1 shows the Guide Arm Assembly with the Start Stop Mechanism positioned inside the laminating machine, between two (2) webs before the formation of the laminate FIG. 2 shows the operation of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 3 shows the front view of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 4 shows the back view of the Start Stop Mechanism on the Guide Arm Assembly.
FIG. 5 shows the Guide Arm Assembly with the deployment system positioned inside the laminating machine, between two (2) webs before the formation of the laminate FIG. 6 shows the deployment system by itself in the collapsed position.
FIG. 7 shows the deployment system by itself in the extended position.
FIG. 8 shows the deployment system installed under the Guide Arm Assembly in the collapsed position.
FIG. 9 shows the deployment system installed under the Guide Arm Assembly in the extended position.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Looking first at FIG. 1, we see the laminating machine with frames #1 and two (2) webs #2A and 2B that will be joined together to form the laminate. The Guide Arm Assembly #3 is positioned between the top web #2A and the bottom web #2B so that the tape can be inserted into the laminate. The Guide Arm Assembly 43 can also be positioned on top of the top web #2A if the need to position the tape on top of the laminated is required.
A backup roll #9 is present under the bottom web #2B so that the tape can be applied to the web #2B with the adequate pressure.
In FIG. 2 we can see the actual operation of the Start Stop Mechanism. In FIG.
2A we see the tape #4 being run on the pulleys #10A, 10B & 10C to guide the tape #4 at the right position inside the laminate. In Fig #5A, the tape is hold into standby position by the lever #11 of the Start Stop Mechanism against the pulley #10C. A small length of the tape #4 is extending after the pulley #10C and a piece of double sided pressure sensitive adhesive tape #19 is attached under the tape #4 and both are hold in place the pulley #10.
In FIG. 2B, we see the Start Stop Mechanism being activated. The pulley #10C
is being moved against the bottom web #2B and the pulley #10C is applying pressure against the tape #4 the double sided pressure sensitive tape #19 and the bottom web #2B, thus bonding the tape #4 to the web #2B.
In FIG. 2C, we see the tape #4 being carried forward from the pulley #10C just as the lever #11 is releasing the tape #4 against the pulley #10C. From that moment on, the tape #4 is started and being continuously feed into the laminating machine.
In FIG. 2D, we see that once the application of the tape #4 into the laminating machine is done, it can be stopped by moving back the pulley #10C in the top position, the lever #11 is again holding the tape #4 against the pulley #10C and the tape #4 exiting the pulley #10C in a higher position is coming into contact with knife #8, thus cutting the tape #4 stopping the continuous supply of the tape #4 into the laminating machine.
In FIG. 3, we can see a detailed from view of the Start Stop Mechanism on the Guide Arm Assembly with the Pulleys #10A, #10B and 10C, the Knife #8 and the bottom web #2B.
In FIG. 4, we see a detailed view of the back of the Start Stop Mechanism on the Guide Arm Assembly with the Pulleys #10A, #10B and #10C and the lever #11 and the Pneumatic Cylinder #6.
We can see our second preferred embodiments the following figures.
In FIG. 5 we see the Laminating machine with frames #1 and two (2) webs #2A
and 2B
that will be joined together to form the laminate. The Guide Arm Assembly with the Deployment System #12 is positioned between the top web #2A and the bottom web #2B
so that the tape can be inserted into the laminate. The Guide Arm Assembly with the Deployment System #12 can also be positioned on top of the top web #2A if the need to position the tape on top of the laminated is required.
In FIG. 6 we can see the details of the Deployment System #12A in the collapsed position without the Guide Arm Assembly. To hold the tapes #4 into position, a piece of cardboard #13 of the adequate dimensions is positioned at the exist of the Deployment System and is hold in place by the Support Clips #8. The tapes #4 are attached on top of the Cardboard Piece #13 by pressure sensitive tapes or other means. The tapes #4 have previously been run into the pulleys of the Guide Arm Assembly # 10A, 10B and 10C.
When the tapes #4 are ready to be put into operation on the laminating machine, the motor #14 is activated which turns the screw #15 that pushed the accordeons #17 thus extending the slides #16 until the Deployment System #12A is in the extended position.
In FIG. 7 and 9, we can see the Deployment System #12A in the extended position. At which point the Cardboard #13 has reached the nip point between web #2A and web #2B
and is being caught by the nip point thus carrying the cardboard #14 and the tapes #4 into the laminating machine. Once the tapes #4 have been introduced into the laminating machine with the cardboard #13, the Deployment System #12A is no longer necessary and can be retracted to the collapsed position as shown in Fig #6.
Having described and illustrated the principles of our invention with reference to a preferred embodiment, it will be apparent to those having skill in the art that the invention can be modified in arrangement and detail without departing from such principles.
In view of theses and the wide range of other embodiments to which the concepts of the present invention can be applied, it should be recognized that the foregoing description is illustrative only and is not to be construed as limiting the scope of the invention. Instead, we claim as our invention all such modifications as may come within the scope and spirit of the following claims and equivalents thereof.
Claims (10)
1. In a method of dispensing reinforcing or tear tape in which the tapes are inserted into a laminating machine as the reinforcing or tear tape must be initially started and stopped in a safe manner, an improvement comprising the steps:
providing the leading end of the reinforcing or tear tape to be started with a means to adhere to one of the webs or layers inside the laminating machine, means being a piece of pressure sensitive tape;
providing a means to apply a pressure on top of the reinforcing or tear tape to bond the pressure sensitive tape, to the reinforcing or tear tape and to one of the webs or layers of the laminating machine, the pressure being applied by a pulley or wheel;
providing a backup pressure on the back side of the web where the reinforcing or tear tape is being applied so that an adequate pressure can be built up on the tape applied on the web;
permitting the effective bond of the reinforcing or tear tape to the web in the laminating machine even while the web is moving at speed, thus automatically starting the reinforcing or tear.
providing the leading end of the reinforcing or tear tape to be started with a means to adhere to one of the webs or layers inside the laminating machine, means being a piece of pressure sensitive tape;
providing a means to apply a pressure on top of the reinforcing or tear tape to bond the pressure sensitive tape, to the reinforcing or tear tape and to one of the webs or layers of the laminating machine, the pressure being applied by a pulley or wheel;
providing a backup pressure on the back side of the web where the reinforcing or tear tape is being applied so that an adequate pressure can be built up on the tape applied on the web;
permitting the effective bond of the reinforcing or tear tape to the web in the laminating machine even while the web is moving at speed, thus automatically starting the reinforcing or tear.
2. The apparatus of claim 1, where the pressure wheel also has a lever to hold the reinforcing or tear tape in place until it is started.
3. The apparatus of claim 2, where the pressure wheel and the holding lever are actuated remotely by at least one (1) pneumatic or hydraulic cylinder.
4. The apparatus in claim 3, where a knife is positioned after the pressure wheel and holding lever, so that when the pressure wheel and holding lever are put back in the holding position the reinforcing or tear tape path comes into contact with the knife, thus cutting the reinforcing or tear tape and the reinforcing or tear tape is again being hold by the holding lever against the pressure wheel.
5. The apparatus in claim 4, where pressure wheel, the holding lever, the pneumatic cylinder and the knife are positioned at the end of the Guide Arm, guiding the reinforcing or tear tape into the laminating machine.
6. In a method of dispensing reinforcing or tear tape in which the tapes are inserted into a laminating machine as the reinforcing or tear tape must be initially started in a safe manner, an improvement comprising the steps:
providing a piece of cardboard where the reinforcing or tear tapes are previously attached before the start;
providing a deployment system to move the cardboard forward into the laminating machine until the front edge of the carboard comes into contact with two (2) webs of the laminating machine forming a nip, or come into contact with one (1) web of the laminating machine and the drive system of the laminating machine forming a nip, thus driving the cardboard piece and the reinforcing or tear tapes into the laminating machine;
permitting the effective start of the reinforcing or tear tapes in the laminating machine process at speed.
providing a piece of cardboard where the reinforcing or tear tapes are previously attached before the start;
providing a deployment system to move the cardboard forward into the laminating machine until the front edge of the carboard comes into contact with two (2) webs of the laminating machine forming a nip, or come into contact with one (1) web of the laminating machine and the drive system of the laminating machine forming a nip, thus driving the cardboard piece and the reinforcing or tear tapes into the laminating machine;
permitting the effective start of the reinforcing or tear tapes in the laminating machine process at speed.
7. The apparatus of claim 6, where the deployment system consists of a frame that can be elongated using a least one slide, one motor, one lead screw and an accordeon system to extend the frame.
8. The apparatus of claim 7, where the motor is electric and is remotely activated, the motor is linked to turn the lead screw to extend or retract the frame.
9. The apparatus in claim 8, where the frame has at least one holding clip to hold the cardboard in place until it is caught and thus released by the laminating machine.
10. The apparatus in claim 9, where the deployment system is installed with the Guide Arm Assembly so that the reinforcing or tear tapes are feed from the Guide Arm Assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3022945A CA3022945A1 (en) | 2018-11-01 | 2018-11-01 | Automatic start stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3022945A CA3022945A1 (en) | 2018-11-01 | 2018-11-01 | Automatic start stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3022945A1 true CA3022945A1 (en) | 2020-05-01 |
Family
ID=70457392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3022945A Abandoned CA3022945A1 (en) | 2018-11-01 | 2018-11-01 | Automatic start stop |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA3022945A1 (en) |
-
2018
- 2018-11-01 CA CA3022945A patent/CA3022945A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20220503 |
|
| FZDE | Discontinued |
Effective date: 20220503 |