WO2022266856A1 - Ear loop attachement device - Google Patents
Ear loop attachement device Download PDFInfo
- Publication number
- WO2022266856A1 WO2022266856A1 PCT/CN2021/101633 CN2021101633W WO2022266856A1 WO 2022266856 A1 WO2022266856 A1 WO 2022266856A1 CN 2021101633 W CN2021101633 W CN 2021101633W WO 2022266856 A1 WO2022266856 A1 WO 2022266856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- loop
- adhesive tape
- continuous
- airflow
- cord
- Prior art date
Links
- 239000002390 adhesive tape Substances 0.000 claims abstract description 90
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000004308 accommodation Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000025721 COVID-19 Diseases 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
Abstract
An ear loop attachment device comprises a loop cord feeding component(100) for feeding a continuous straight loop cord(10) along a first direction(A), an adhesive tape feeding component(200) for feeding a continuous adhesive tape along the first direction(A), an airflow component(300) for generating an airflow in a second direction(B) which is perpendicular to the first direction(A) for deflecting the continuous straight loop cord(10) to form a corresponding U-shape loop(30), the U-shape loop(30) is transferred along the first direction(A) with mask bodies(40) subsequently sticked onto the adhesive tape(20) which has already been sticked with the U-shape loop(30). Very surprisingly, the ear loop attachment device using the airflow component(300) as the continuous U-shape loop forming unit is a very low cost set-up that can achieve a relatively high speed continuous loop forming task with the incor-poration of a simple air stream without the use of any complex and high cost of control system.
Description
The present
disclosure relates generally to face mask production, and more particularly, to
an ear loop attachment device.
The outbreak of
coronavirus COVID-19 pandemic that spread globally has resulted different types
of face masks are being made in the market that catered for different end
users’ needs based on their tastes, culture, income and lifestyles in their
respective countries.
The most common
type of face mask that currently used globally is the one-time-use disposable
face mask made of non-woven polymeric material with pleated structure
consisting of three folds with three layers (commercially termed as three-ply)
attached with an ear loop.
Ear loop
attachment is one of the main components in the manufacturing process in
producing the disposable face masks
Attachment of a
loop to an object usually involves the use of a picking device (mechanical
fingers) in picking up the loop at a specific point of the loop and transfer it
to another specific new position where the mechanical fingers will position and
place it onto the desirable point where the loop to be attached. The process
will be repeated for the second specific point to be picked up and to be
attached and so on.
The use of
mechanical fingers is a rather complex attachment process as it will incur many
mechanical parts including very often complex control system and the high cost
of the electromechanical or computerized attachment system.
However, due to
intensive competition in the disposable face mask business at the current
over-supplied situation, better, more productive or lower manufacturing set-up
cost or method or solution is needed in order to survive and prosper in the
highly competitive disposable face mask industry.
Since the ear loop
attachment is one of the main components in the manufacturing process in
producing disposable face masks, there is a need for more innovative and
cost-effective means to develop better method to achieve the loop attachment
process that is simple to operate with very low set-up and maintenance cost so
that it can be used in a large scale to achieve good return-on-investment(ROI)
in typical product manufacturing operations.
The object of the
present application is to provide an ear loop attachment device, aiming at the
above problems of the prior art.
In one aspect, an
ear loop attachment device is provided, which comprising a loop cord feeding
component for feeding a continuous straight loop cord along a first direction,
an adhesive tape feeding component for feeding a continuous adhesive tape along
the first direction, an airflow component for generating an airflow in a second
direction which is perpendicular to the first direction for deflecting the
continuous straight loop cord to form a corresponding U-shape loop, the U-shape
loop is then transferred along the first direction with mask bodies
subsequently sticked onto the adhesive tape which has already been sticked with
the U-shape loop.
In a preferable
embodiment, the airflow component is a centrifugal fan arranged downstream of
the loop cord feeding component along the first direction for generating a
first airflow and a second airflow opposite with each other and along the
second direction.
In a preferable
embodiment, the airflow component comprises two centrifugal fans arranged
symmetrically downstream of the loop cord feeding component along the first
direction for generating a first airflow and a second airflow opposite with
each other and along the second direction.
In a preferable
embodiment, the ear loop attachment device further comprises a blocking
component arranged along the first direction for adjusting a shape of the
U-shape loop.
In a preferable
embodiment, the blocking component comprises a first U-shape loop forming unit
arranged at a first side of the airflow component along the second direction
for adjusting a first U-shape loop deflecting by the first airflow and a second
U-shape loop forming unit arranged at a second side of the airflow component
along the second direction for adjusting a second U-shape loop deflecting by
the second airflow.
In a preferable
embodiment, each U-shape loop forming unit comprises a row of vertical bars
arranged at intervals along the first direction.
In a preferable
embodiment, the loop cord feeding component comprises a first loop cord feeding
unit arranged at a first side of the airflow component along the second
direction and a second loop cord feeding unit arranged at a second side of the
airflow component along the second direction, wherein the first loop cord
feeding unit and the second loop cord feeding unit are parallel to each other
and arranged above the adhesive tape feeding component.
In a preferable
embodiment, each loop cord feeding unit comprises a loop cord accommodation
element arranged under the continuous adhesive tape for supplying the
continuous straight loop cord and a loop cord transmission element for pulling
the continuous straight loop cord upward from the loop cord accommodation
element and the continuous straight loop cord is transmitted above the
continuous adhesive tape towards the blocking component along the first
direction.
In a preferable
embodiment, the loop cord transmission element comprises a cam mechanism
arranged above the continuous adhesive tape for pulling the continuous straight
loop cord upward and transmitting the continuous straight loop cord above the
continuous adhesive tape along the first direction, a slope structure for
transmitting the continuous straight loop cord downward to the continuous
adhesive tape, and a first rotation disc arranged close to the continuous
adhesive tape for receiving the continuous straight loop at its circular edge
just close above the continuous adhesive tape; wherein the continuous straight
loop cord is pressed by the first rotation disc at every downward stroke of the
cam mechanism for sticking a small portion of the continuous straight loop cord
on the continuous adhesive tape.
In a preferable
embodiment, the first rotation disc is driven by the continuous adhesive tape
moving by the adhesive tape feeding component.
In a preferable
embodiment, the cam mechanism comprises a cam rotating clockwise for pulling
the continuous straight loop cord upward, a follower rotating anticlockwise for
diverting and transmitting the continuous straight loop cord above the
continuous adhesive tape along the first direction, and a frame for mounting
the cam, the follower and the first rotation disc.
In a preferable
embodiment, the adhesive tape feeding component comprises a first roller
wrapped with a first continuous adhesive tape arranged at a first side of the
airflow component along the second direction, a second roller wrapped with a
second continuous adhesive tape arranged at a second side of the airflow
component along the second direction and a receiving roller for receiving face
masks with ear loops; wherein the first roller and the second roller are
arranged upstream of the loop cord feeding component and the airflow component
along the first direction, while the receiving roller is arranged downstream of
the loop cord feeding component and the airflow component along the first
direction.
In a preferable
embodiment, the adhesive tape feeding component further comprises one motor for
driving the receiving roller, wherein the first roller and the second roller
are driven by the receiving roller.
In a preferable
embodiment, the ear loop attachment device further comprises a mask body
feeding device arranged above the continuous adhesive tape and downstream of
the airflow component for supplying the mask bodies.
In a preferable
embodiment, the mask body feeding device supplies a continuous mask body with
flaps mechanically formed at both shorter lengths of its four sides and
subsequently placed with its shorter edge aligned to an outer extreme edge of
the continuous adhesive tape and then be pressed on to adhere to the continuous
adhesive tape.
In a preferable
embodiment, the ear loop attachment device further comprises a glue dispensing
unit to dispense a little glue onto the continuous straight loop cord.
Very surprisingly,
the ear loop attachment device using the airflow component as the continuous
U-shape loop forming unit is a very low cost set-up that can achieve a
relatively high speed continuous loop forming task with the incorporation of a
simple air stream without the use of any complex and high cost of
electromechanical or computerized control system associated with mechanical
picking fingers as highlighted in the prior arts of the present application.
The present
application is further illustrated combining the embodiments and drawings
attached.
Fig.1 is a diagram
showing the ear loop attachment device according to a first embodiment of the
present application.
Fig.2 is a diagram
showing the left side of the ear loop attachment device shown in Fig.1.
To make the
objective, the technical solution, and the advantage of the present application
more clearly, the present application is further described in detail below with
reference to the accompanying drawings and embodiments. It should be understood
that the specific embodiments described herein are merely used to explain the
present application and are not intended to the present application.
It should be noted
that when an object is mentioned as being "fixed" or
"arranged" on another object, it can be directly on another
piece/assembly or it may be indirectly fixed or arranged on another object
through a third object. When an object is mentioned as being
"connected" with another object, it may be directly connected with
another object or it may be indirectly connected to another object through a
third object.
It should be noted
that the technical terms, such as “length”, “width”, “upper”, “lower”, “front”,
“back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”,
“outer”, indicating the orientation or position relationship are based on the
orientation or position relationship shown in the attached drawings. They are
just for the description convenience and simplifying, rather than indicating or
implying that the device or piece referred to must have the specific
orientation, or be constructed and operated in the specific orientation, and
cannot be understood as the limitation of the present application.
In addition, the
terms "first" and "second" are used for descriptive
purposes only and cannot be understood as indicating or implying the relative
importance or implicitly indicating the number of technical features. Thus, the
features defined with "first" and "second" can explicitly
or implicitly include one or more of these features. In the description of the
present application, “a plurality of” means two or more, unless otherwise is
specifically defined.
The present
disclosure has disclosed an ear loop attachment device is provided, which
comprising a loop cord feeding component for feeding a continuous straight loop
cord along a first direction, an adhesive tape feeding component for feeding a
continuous adhesive tape along the first direction, an airflow component for
generating an airflow in a second direction which is perpendicular to the first
direction for deflecting the continuous straight loop cord to form
corresponding U-shape loop, the U-shape loop is then transferred along the
first direction and sticked on the adhesive tape; wherein mask bodies are
subsequently received on the adhesive tape already sticked with the U-shape
loop and sticked together with the adhesive tape with the U-shape loop. Very
surprisingly, the ear loop attachment device using the airflow component as the
continuous U-shape loop forming unit is a very low cost set-up that can achieve
a relatively high speed continuous loop forming task with the incorporation of
a simple air stream without the use of any complex and high cost of
electromechanical or computerized control system associated with mechanical
picking fingers as highlighted in the prior arts of the present application.
Fig.1 is a diagram
showing the ear loop attachment device according to a first embodiment of the
present application. Fig.2 is a diagram showing the left side of the ear loop
attachment device shown in Fig.1, which has omitted some components for showing
the structure clearer.
As shown in
Figs.1-2, the ear loop attachment device comprises a loop cord feeding
component 100 for feeding a continuous straight loop cord 10 along a first
direction A, an adhesive tape feeding component 200 for feeding a continuous
adhesive tape 20 along the first direction A, an airflow component 300 for
generating an airflow in a second direction B which is perpendicular to the
first direction A for deflecting the continuous straight loop cord 10 to form
corresponding U-shape loop 30. The U-shape loop 30 is then transferred along
the first direction A and sticked on the adhesive tape 20. Mask bodies 40 are
subsequently received on the adhesive tape 20 which has already sticked with
the U-shape loop 30.
Further referring
Figs.1-2, we can notice that the ear loop attachment device has a symmetrical
structure. The adhesive tape feeding component 200 is arranged horizontally for
feeding a continuous adhesive tape 20 along the first direction A, that is from
the right to the left. One skilled in the art knows that, the adhesive tape
feeding component 200 can have any specific arrangement as if it can feed the
continuous adhesive tape 20 horizontally. The loop cord feeding component 100
is arranged along the first direction A, that is, along the adhesive tape
feeding direction for feeding the continuous straight loop cord 10 along the
first direction A. The straight loop cord 10 and the adhesive tape 20 are
transmitted in parallel and spaced such that the straight loop cord 10 would
not be sticked on the adhesive tape 20 until when they needed to be sticked
together. Similarly, the loop cord feeding component 100 can have any specific
arrangement as if it can feed the straight loop cord 10 horizontally.
The airflow
component 300 is arranged downstream of the loop cord feeding component 100. It
can be a centrifugal fan 310 arranged downstream of the loop cord feeding
component 100 for generating a first airflow F1 and a second airflow F2
opposite with each other and along the second direction B. Of course, the
airflow component 300 also can comprise two centrifugal fans 310 arranged
symmetrically downstream of the loop cord feeding component 100 along the first
direction A for generating a first airflow F1 and a second airflow F2 opposite
with each other and along the second direction B. Accordingly, when the
straight loop cord 10 passes through the airflow component 300, the first
airflow F1 and second airflow F2 would deflect the straight loop cord 10 to
form corresponding U-shape loop 30. Then the U-shape loop 30 are transferred
along the first direction A and sticked on the adhesive tape 20 due to its
gravity or by some other components, such as pressing brush or the likes. After
that, mask bodies 40 are received on the adhesive tape 20 which has already
sticked with the U-shape loop 30 due to its gravity or by some other
components, such as pressing brush or the likes. In this way, the mask bodies
40 attached with the U-shape loop 30 are formed.
In the present
application, the airflow component 300 continuously releases an airflow
directed at the non-stop incoming loop cord in causing the straight loop cord
to deflect and move away from its original straight traveling line (that is,
the first direction A) to a new direction typically at 90 degree perpendicular
to the straight traveling line as per the air flow direction of the first
airflow F1 or the second airflow F2. Such that, the U-shape loop 30 can be
formed.
In a preferable
embodiment of the present application, in order to adjust the shape and length
of the U-shape loop 30, a blocking component 500 can be arranged along the
first direction A. The blocking component 500 can be a U-shape loop forming
unit formed by such as a U-shape strip or multiple vertical bars, or a strip arranged
the first direction A. Such that the deflected loop cord is then blocked and
guided by the blocking component 500 in causing the formation of the U-shape
loop 30 as shown in Fig.1.
Very surprisingly,
the ear loop attachment device using the airflow component as the continuous
U-shape loop forming unit is a very low cost set-up that can achieve a
relatively high speed continuous loop forming task with the incorporation of a
simple air stream without the use of any complex and high cost of electromechanical
or computerized control system associated with mechanical picking fingers as
highlighted in the prior arts of the present application.
Further referring
Figs.1-2, in the preferable embodiment of the present application, the adhesive
tape feeding component 200 comprises a first roller 210 wrapped with a first
continuous adhesive tape 20 arranged at a first side of the airflow component
300 along the second direction B, a second roller 220 wrapped with a second
continuous adhesive tape 20 arranged at a second side of the airflow component
300 along the second direction B and a receiving roller 230 for receiving face
masks with ear loops.
As shown in
Fig.1-2, the first roller 210 and the second roller 220 are arranged upstream
of the loop cord feeding component 100 and the airflow component 300 along the
first direction A, that is at the rightmost. The continuous adhesive tape 20
are transmitted from the right to the left. While the receiving roller 230 is
arranged downstream of the loop cord feeding component 100 and the airflow
component 300 along the first direction A, that is at the leftmost. In a
further preferable embodiment, the adhesive tape feeding component 200 further
comprises only one motor 240 for driving the receiving roller 230, wherein the
first roller 210 and the second roller 220 are passive rollers driven by the
receiving roller 230. Of course, in other embodiment of the present
application, the first roller 210 and the second roller 220 also can be active
rollers.
Referring
Figs.1-2, the loop cord feeding component 100 comprises a first loop cord
feeding unit 110 arranged at the first side of the airflow component 300 along
the second direction B and a second loop cord feeding unit 120 arranged at the
second side of the airflow component 300 along the second direction B. The
first loop cord feeding unit 110 and the second loop cord feeding unit 120 are
parallel to each other and arranged above the adhesive tape feeding component
200.
Further referring
Figs.1-2, the first loop cord feeding unit 110 and the second loop cord feeding
unit 120 each comprises a loop cord accommodation element 11 arranged under the
continuous adhesive tape 20 for supplying the continuous straight loop cord 10
and a loop cord transmission element 12 for pulling the continuous straight
loop cord 10 upward from the loop cord accommodation element 11. The continuous
straight loop cord 10 is transmitted above the continuous adhesive tape 20
towards the blocking component 500 along the first direction A.
Referring the
preferable embodiment of the present application, the loop cord transmission
element 12 comprises a cam mechanism 121 arranged above the continuous adhesive
tape 20 for pulling the continuous straight loop cord 10 upward and
transmitting the continuous straight loop cord 10 above the continuous adhesive
tape 20 along the first direction A, a slope structure 122 for transmitting the
continuous straight loop cord 10 downward to the continuous adhesive tape 20,
and a first rotation disc 124 arranged close to the continuous adhesive tape 20
for receiving the continuous straight loop at its circular edge just close
above the continuous adhesive tape 20. The continuous straight loop cord 10 is
pressed by the first rotation disc 124 at every downward stroke of the cam
mechanism 121 for sticking a small portion of the continuous straight loop cord
10 on the continuous adhesive tape 20. In such a way, the U-shape forming
process can be better implemented for that the continuous straight loop cord 10
would not move arbitrarily.
In a preferable
embodiment, the cam mechanism 121 comprises a cam 1211 rotating clockwise for
pulling the continuous straight loop cord 10 upward, a follower 1212 rotating
anticlockwise for diverting and transmitting the continuous straight loop cord
10 above the continuous adhesive tape 20 along the first direction, and a frame
1213 for mounting the cam 1211and the follower 1212.
Referring
Figs.1-2, the frame 1212 comprises an incline arm arranged with the cam 1211
and the follower 1212, and a vertical arm arranged with the first rotation disc
124, wherein an acute angle is formed between the incline arm and the vertical
arm. In the preferable embodiment, the first rotation disc 124 can be manual or
automatic. The top end of the follower 1212 flushes with the top end of the
slope structure 122. Preferably, the first rotation disc 124 can be driven by
the continuous moving adhesive tape 20, such that just a single rotating source
(motor 240) together with a simple airflow component can achieve a very low
cost ear-loop attachment process compared to the conventional complex process
of ear loop attachment using mechanical fingers as practiced in the
conventional face mask manufacturing industry.
Further referring
Figs.1-2, the blocking component 500 comprises a first U-shape loop forming
unit 510 arranged at the first side of the airflow component 300 along the
second direction B for adjusting a first U-shape loop 30 deflecting by the
first airflow F1 and a second U-shape loop forming unit 520 arranged at the
second side of the airflow component 300 along the second direction B for
adjusting the second U-shape loop 30 deflecting by the second airflow F2. In a
preferable embodiment, the first U-shape loop forming unit 510 and the second
U-shape loop forming unit 520 each comprises a first vertical bar 511 arranged
at intervals along the first direction A and several second vertical bars 512
arranged at intervals along the first direction A, wherein the first vertical
bar 511 and the second vertical bars 512 are spaced along the second direction
B and the first vertical bars 511 are closer to the airflow component 300.
In the present
embodiment, the continuous straight loop cord 10 is drawn from the loop cord
accommodation element 11 (such as a bag or container ) and delivered by cam
mechanism 121 to travel on the smooth surface plane of the slope structure 122,
and then move towards the airflow component 300 through the smooth surfaces of
the slope structure 122 and then the first rotation disc 124 .
The airflow
component 300 is preferably one centrifugal fan 310 arranged along the
direction A and between the two parallel continuous adhesive tapes 20. The
centrifugal fan 310 continuously releases an airflow directed at the non-stop
incoming loop cord in causing the loop cord to deflect and move away from its
original straight traveling line (that is, the first direction A) to a new
direction typically at 90 degree perpendicular to the straight traveling line
as per the air flow direction of the first airflow F1 or the second airflow F2.
The deflected loop cord is then blocked and guided by the vertical bars 511 and
512 arranged in a U-shape-like pattern in causing the formation of the U-shape
loop 30. The formation of the U-shape loop 30 with a cord length according to
the circumference of the cam 1211 for every rotation cycle.
In the present
preferable embodiment, the ear loop attachment device further comprises a mask
body feeding device 600 arranged above the continuous adhesive tape 20 and
downstream of the airflow component 300 for supplying the mask bodies 40. The
mask body feeding device 600 supplies a continuous mask body with flaps 41
mechanically formed at both the shorter lengths of the four(4) sides and
subsequently placed with its shorter edge aligned to the outer extreme edge of
the moving adhesive tape 20 and then be pressed on to adhere to the moving
adhesive tape 20. The feeding of the mask bodies 40 is done by conventional
means including the incorporation of feeding roller(s), feeding vibration
motor(s) and direct gravitational feeding method, etc., that is commonly
practiced in the manufacturing industry.
After the mask
bodies 40 is adhered onto the moving adhesive tape 20, the mask body 40 is then
travelled along with the moving adhesive tape 20 to the receiving roller 230.
As discussed before, the receiving roller 230 is driven by the motor 240 to
pull the adhesive tape 20 to form a continuous mask body flow sticked with the
adhesive tape 20 already sticked with the U-shape loop. Then the continuous
mask body flow (with the U-shape loop attached) can be removed and transferred
to other subsequent process.
In a preferable
embodiment, the mask body 40 has already been attached with the nose clip. The
placement of such nose clip at a specific spot on the adhesive tape 20 will
automatically makes the nose clip attach to the external outer surface of the
face mask. Such option not only offers more manufacturing process flexibility
or choices of nose clip attachment, it also offer more choices of design look
to the end-users for commercial reason.
Optionally, the
ear loop attachment device can further comprises a glue dispensing unit 400 to
dispense a little glue onto the loop cord. This is an added precaution step to
ensure the reliability of the ear loop adhesion bonding strength on the face
mask sheet is strong and safely maintained, especially different users may
practice different pulling strength on the ear loop when putting it on thereby
causing the risk of the ear loop being detached from the body of the face mask.
One skilled in the
arts should be aware that the ear loop attachment device can be used or applied
to the conventional face mask loop attachment process where any material is
used, such as the spun polypropylene (PP), cellulose or other polymer widely
used in the face mask manufacturing industry.
The foregoing is a
further detailed description of the present application in connection with
specific preferred embodiments, and cannot be considered as that the specific
implementation of the present application is limited to these illustrations. It
will be apparent to those skilled in the art that any various modifications or
substitutions may be made to the present application without departing from the
spirit of the invention, and such modifications or substitutions should be
considered as falling within the scope of the present application.
Claims (16)
- An ear loop attachment device is provided, which comprising a loop cord feeding component for feeding a continuous straight loop cord along a first direction, an adhesive tape feeding component for feeding a continuous adhesive tape along the first direction, an airflow component for generating an airflow in a second direction which is perpendicular to the first direction for deflecting the continuous straight loop cord to form a corresponding U-shape loop, the U-shape loop is then transferred along the first direction with mask bodies subsequently sticked onto the adhesive tape which has already been sticked with the U-shape loop.
- The ear loop attachment device according to claim 1, wherein the airflow component is a centrifugal fan arranged downstream of the loop cord feeding component along the first direction for generating a first airflow and a second airflow opposite with each other and along the second direction.
- The ear loop attachment device according to claim 1, wherein the airflow component comprises two centrifugal fans arranged symmetrically downstream of the loop cord feeding component along the first direction for generating a first airflow and a second airflow opposite with each other and along the second direction.
- The ear loop attachment device according to claim 2 or 3, wherein the ear loop attachment device further comprises a blocking component arranged along the first direction for adjusting a shape of the U-shape loop.
- The ear loop attachment device according to claim 4, wherein the blocking component comprises a first U-shape loop forming unit arranged at a first side of the airflow component along the second direction for adjusting a first U-shape loop deflecting by the first airflow and a second U-shape loop forming unit arranged at a second side of the airflow component along the second direction for adjusting a second U-shape loop deflecting by the second airflow.
- The ear loop attachment device according to claim 5, wherein each U-shape loop forming unit comprises a row of vertical bars arranged at intervals along the first direction
- The ear loop attachment device according to any one of claims 1-3, wherein the loop cord feeding component comprises a first loop cord feeding unit arranged at a first side of the airflow component along the second direction and a second loop cord feeding unit arranged at a second side of the airflow component along the second direction, wherein the first loop cord feeding unit and the second loop cord feeding unit are parallel to each other and arranged above the adhesive tape feeding component.
- The ear loop attachment device according to claim 7, wherein each loop cord feeding unit comprises a loop cord accommodation element arranged under the continuous adhesive tape for supplying the continuous straight loop cord and a loop cord transmission element for pulling the continuous straight loop cord upward from the loop cord accommodation element and the continuous straight loop cord is transmitted above the continuous adhesive tape towards the blocking component along the first direction.
- The ear loop attachment device according to claim 8, wherein the loop cord transmission element comprises a cam mechanism arranged above the continuous adhesive tape for pulling the continuous straight loop cord upward and transmitting the continuous straight loop cord above the continuous adhesive tape along the first direction, a slope structure for transmitting the continuous straight loop cord downward to the continuous adhesive tape, and a first rotation disc arranged close to the continuous adhesive tape for receiving the continuous straight loop at its circular edge just close above the continuous adhesive tape; wherein the continuous straight loop cord is pressed by the first rotation disc at every downward stroke of the cam mechanism for sticking a small portion of the continuous straight loop cord on the continuous adhesive tape.
- The ear loop attachment device according to claim 9, wherein the first rotation disc is driven by the continuous adhesive tape moving by the adhesive tape feeding component.
- The ear loop attachment device according to claim 9, wherein the cam mechanism comprises a cam rotating clockwise for pulling the continuous straight loop cord upward, a follower rotating anticlockwise for diverting and transmitting the continuous straight loop cord above the continuous adhesive tape along the first direction, and a frame for mounting the cam, the follower and the first rotation disc.
- The ear loop attachment device according to any one of claims 1-3, wherein the adhesive tape feeding component comprises a first roller wrapped with a first continuous adhesive tape arranged at a first side of the airflow component along the second direction, a second roller wrapped with a second continuous adhesive tape arranged at a second side of the airflow component along the second direction and a receiving roller for receiving face masks with ear loops; wherein the first roller and the second roller are arranged upstream of the loop cord feeding component and the airflow component along the first direction, while the receiving roller is arranged downstream of the loop cord feeding component and the airflow component along the first direction.
- The ear loop attachment device according to claim 12, wherein the adhesive tape feeding component further comprises one motor for driving the receiving roller, wherein the first roller and the second roller are driven by the receiving roller.
- The ear loop attachment device according to any one of claims 1-13, wherein the ear loop attachment device further comprises a mask body feeding device arranged above the continuous adhesive tape and downstream of the airflow component for supplying the mask bodies.
- The ear loop attachment device according to claim 14, wherein the mask body feeding device supplies a continuous mask body with flaps mechanically formed at both shorter lengths of its four sides and subsequently placed with its shorter edge aligned to an outer extreme edge of the continuous adhesive tape and then be pressed on to adhere to the continuous adhesive tape.
- The ear loop attachment device according to any one of claims 1-13, wherein the ear loop attachment device further comprises a glue dispensing unit to dispense a little glue onto the continuous straight loop cord.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180034329.8A CN115715268A (en) | 2021-06-22 | 2021-06-22 | Earring attachment device |
| PCT/CN2021/101633 WO2022266856A1 (en) | 2021-06-22 | 2021-06-22 | Ear loop attachement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/101633 WO2022266856A1 (en) | 2021-06-22 | 2021-06-22 | Ear loop attachement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022266856A1 true WO2022266856A1 (en) | 2022-12-29 |
Family
ID=84543876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/101633 WO2022266856A1 (en) | 2021-06-22 | 2021-06-22 | Ear loop attachement device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115715268A (en) |
| WO (1) | WO2022266856A1 (en) |
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2021
- 2021-06-22 WO PCT/CN2021/101633 patent/WO2022266856A1/en unknown
- 2021-06-22 CN CN202180034329.8A patent/CN115715268A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115715268A (en) | 2023-02-24 |
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