Mask ear strap folding device

Abstract

The present invention discloses a mask ear strap folding device. It comprises: a belt conveyor, the belt conveyor comprising a driving roller and a driven roller, and a belt wound around the driving roller and the driven roller; an ear strap arranging device is installed between the driving roller and the driven roller, and an ear strap hot pressing device is installed downstream of the ear strap arranging device; the ear strap hot pressing device comprises: a rotary drive device installed between the driving roller and the driven roller, the rotary drive device extending a rotating shaft to both sides of the belt, a rocker arm is installed on the rotating shaft, and a hot pressing plate adapted to the bottom plate is installed between the two rockers; the drive device drives the rocker arm to move the hot pressing plate forward and downward to the bottom plate position or return the hot pressing plate to the top of the drive device. The present invention achieves the folding of the ear strap by hot pressing the arranged ear strap through the coordination of the arranging strip, the rotary spring and the drive device, and then in conjunction with the hot pressing plate.

Description

Technical Field

[0001] The invention relates to a mask ear strap folding device. Background Art

[0002] During mask production, ten masks are typically packaged together. The strings of the ten masks are stacked on top of each other, folded together on the outside of the top mask. To meet market demand, each mask needs to be heat-sealed and sealed. This requires the strings on both sides of each mask to be folded and shaped so that the ear straps (strings) are not visible when looking down at the mask. Otherwise, the strings may be caught during heat sealing, resulting in waste. Summary of the Invention

[0003] In order to overcome the above-mentioned drawbacks, the object of the present invention is to provide a device for arranging the ear straps of a mask.

[0004] In order to achieve the above object, the mask ear strap folding device of the present invention,

[0005] A belt conveyor device, wherein the belt conveyor device is composed of a driving roller, a driven roller, and a belt wound around the driving roller and the driven roller;

[0006] An earband arranging device and an earband hot pressing device installed downstream of the earband arranging device are installed between the active roller and the driven roller; the earband arranging device includes:

[0007] Bottom plate, adapted to the width of the belt;

[0008] Arrangement strips are hinged in the middle of both sides of the bottom plate, and rotation springs are coaxially arranged at the hinges of the arrangement strips to enable the arrangement strips to rotate without external force to fit the upper surface of the bottom plate;

[0009] A slide groove is provided on the arranging strip along the length direction;

[0010] A slider accommodating cavity is provided at the bottom of the arranging strip corresponding to the slide groove;

[0011] A slider is slidably provided in the slider accommodating cavity, and an ear strap hanging column is upwardly provided on the slider; the ear strap hanging column extends upwardly from the arranging strip;

[0012] A spring is provided between the slider and the side wall of the slider accommodating cavity near the bottom plate;

[0013] A strip arranging plate driving device is provided on the lower surface of the bottom plate; the side wall of the slider close to the spring is connected to the strip arranging plate driving device via a rope;

[0014] The earband hot pressing device comprises:

[0015] A rotary drive device is installed between the active roller and the driven roller, wherein the rotary drive device extends a rotating shaft to both sides of the belt, a swing rod is installed on the rotating shaft, and a hot pressing plate adapted to the bottom plate is installed between the two swing rods;

[0016] The driving device drives the swing rod to move the hot pressing plate forward and downward to the bottom plate position or to return the hot pressing plate to above the driving device.

[0017] Furthermore, a pressing device is provided on the bottom plates on both sides of the sorting strips, and the pressing device includes an L-shaped pressing plate hingedly connected to the side of the bottom plate, and a rotation spring is coaxially provided at the hinge of the pressing plate to enable the pressing plate to rotate to fit the upper surface of the bottom plate without external force; a pressing plate driving device is provided on the corresponding pressing plate on the lower surface of the bottom plate; the short arm of the L-shaped pressing plate is located below the bottom plate and is connected to the pressing plate driving device through a rope.

[0018] The invention completes the stretching and flipping of the mask belt through the cooperation of the arranging strip plate, the rotating spring and the driving device, and then cooperates with the hot pressing plate to heat-press the arranged ear belt to complete the folding of the ear belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the middle ear strap arrangement device of the present invention.

[0020] Figure 2 for Figure 1 Schematic cross-sectional view of the middle finishing strip part.

[0021] Figure 3 for Figure 1 Schematic cross-sectional view of the medium pressure plate.

[0022] Figure 4 This is a schematic diagram of the arranging strips being attached to the base plate under the action of the rotating spring.

[0023] Figure 5 This is a schematic diagram of the initial stage of the slat drive device.

[0024] Figure 6 This is a schematic diagram of the unfolding process of the arranging strips driven by the driving device.

[0025] Figure 7 Schematic diagram of placing the mask on the base plate.

[0026] Figure 8 This is a schematic diagram of the ear strap hanging column moving to both ends under the action of the spring.

[0027] Figure 9 A schematic diagram showing how the slats fold the ear straps onto the mask under the action of a rotating spring.

[0028] Figure 10 It is a structural schematic diagram of the present invention.

[0029] Figure 11 It is a schematic diagram of the present invention after operation.

[0030] Figure 12 for Figure 10 Schematic diagram of the hot press plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] As shown in the figure, the mask ear strap folding device of the present invention,

[0033] The belt conveyor device is composed of a driving roller 21 and a driven roller 22 and a belt 23 wound around the driving roller and the driven roller. The belt 23 should be as thin as possible to prevent affecting the fixation of the mask; an ear strap arrangement device 11 and an ear strap hot pressing device installed downstream of the ear strap arrangement device are installed between the driving roller and the driven roller; the mask ear strap arrangement device of the present invention includes

[0034] The bottom plate 1 can be made of materials such as stainless steel plate; its size is comparable to that of the mask;

[0035] Arrangement strips 2 are hinged in the middle of both sides of the bottom plate, and rotation springs (also called torsion springs, not shown in the figure) are coaxially arranged at the hinges to enable the arrangement strips to rotate without external force to fit the upper surface of the bottom plate;

[0036] A slide 3 is provided along the length direction of the finishing strip;

[0037] A slider receiving cavity 4 is provided at the bottom of the finishing strip corresponding to the chute; it can be made of a long strip of metal plate, or a C-shaped open cavity as shown in the figure, so as to facilitate the sliding of the slider therein;

[0038] A slider 5 is slidably provided in the slider accommodating cavity, and an ear strap hanging column 6 is provided upwardly on the slider; the ear strap hanging column extends upwardly from the arranging strip; the ear strap hanging column can be fixed to the slider by means of screw connection or welding.

[0039] A spring 7 is provided between the slider and the side wall of the slider accommodating cavity near the bottom plate;

[0040] A driving device 8 is provided on the lower surface of the bottom plate. The driving device can be an electric push rod, an electric winch, a cylinder, etc. for pulling the rope; the side wall of the slider close to the spring side is connected to the driving device through a rope 9.

[0041] The bottom plates on either side of the arranging strips are also equipped with edge-holding devices, which operate on the same principle as the arranging strips. The edge-holding devices comprise an L-shaped pressure plate 10 hinged to the side of the bottom plate. A rotation spring (not shown) is coaxially mounted at the hinge of the pressure plate, enabling the pressure plate to rotate to conform to the upper surface of the bottom plate without external force. A pressure plate drive device is installed on the lower surface of the bottom plate, corresponding to the pressure plate. The short arm of the L-shaped pressure plate is located below the bottom plate and connected to the pressure plate drive device via a rope.

[0042] The earband hot pressing device comprises:

[0043] like Figures 10 to 12 As shown, a rotary drive device 24 is installed between the active roller 21 and the driven roller 22. The drive device can be driven by a motor or a cylinder. The rotary drive device extends a rotating shaft to both sides of the belt, and a rocker 26 is installed on the rotating shaft. A hot press plate 25 adapted to the bottom plate is installed between the two rocker arms. Considering the position of the arranging strips on the mask ear strap folding device, a recess is provided on the hot press plate corresponding to the arranging strips; a recess can also be provided corresponding to the ear strap, so as not to affect the shape of the ear strap. The hot pressing temperature on the hot press plate should be adjustable so that different hot pressing problems can be set according to different ear strap types.

[0044] The driving device drives the swing rod to move the hot pressing plate forward and downward to the bottom plate position or to return the hot pressing plate to above the driving device.

[0045] The working process is as follows:

[0046] In the initial state, the belt does not rotate. Figure 4 As shown, the sorting strip drive is not operating, and the sorting strip is in contact with the belt on the upper surface of the base plate due to the action of the rotating spring. The slider and ear strap hanger are pressed against the ends of the sorting strip by the spring. Similarly, the pressure plate drive is also not operating at this time, and the pressure plate is in contact with the belt on the upper surface of the base plate due to the action of the rotating spring.

[0047] When working, turn on the sorting strip drive device; Figure 5 As shown, pull the rope, under the action of the rope, the slider and the ear strap hanging column move toward the hinge end of the sorting strip; when they move to the stop point of the slide, as shown in Figure 6 As shown, the driving device continues to pull the rope, causing the sorting strip to rotate around the hinge axis, overcoming the effect of the rotation spring, until it is parallel to the bottom plate. At the same time, the pressing plate driving device is turned on, and the rope is pulled to cause the pressing plate to rotate around the hinge axis, overcoming the effect of the rotation spring, until it is parallel to the bottom plate.

[0048] At this time, the mask can be placed on the belt on the bottom plate, and the ear straps on both sides can be hung on the ear strap hanging posts 6.

[0049] like Figure 7 As shown, first release the pressing plate driving device, so that the pressing plate is pressed against the belt on the bottom plate under the action of the rotating spring to press the edge of the mask; then, as shown Figure 8 As shown, the arrangement strip driving device is released, and the slider drives the ear strap hanging column to move toward the two ends of the arrangement strip under the action of the spring, so that the ear strap is tightened and shaped; at the same time, Figure 9 As shown, the arranging strip is fitted to the belt on the bottom plate under the action of the rotating spring to drive the ear strap to fold toward the middle of the mask. This completes the preliminary arrangement of the ear strap.

[0050] Then start the rotary drive device 24 to drive the electric hot pressing plate to rotate, and perform heat pressing and shaping on the arranged mask ear straps; after shaping, reversely drive the rotary drive device 24 to rotate 90 degrees, so that the hot pressing plate returns to the top of the drive device.

[0051] At this time, turn on the sorting strip drive device and the pressure plate drive device again; make the sorting strip and the pressure plate rotate around the hinge shaft to overcome the action of the rotation spring until they are parallel to the bottom plate; at this time, the belt rotates one mask position to prepare for the next mask.

[0052] Finally, it goes through the next process such as counting and packaging.

Claims

1. A mask ear strap folding device, characterized in that: include: A belt conveyor device, wherein the belt conveyor device is composed of a driving roller, a driven roller, and a belt wound around the driving roller and the driven roller; An earband arranging device and an earband hot pressing device installed downstream of the earband arranging device are installed between the active roller and the driven roller; the earband arranging device includes: Bottom plate, adapted to the width of the belt; Arrangement strips are hinged in the middle of both sides of the bottom plate, and rotation springs are coaxially arranged at the hinges of the arrangement strips to enable the arrangement strips to rotate without external force to fit the upper surface of the bottom plate; A slide groove is provided on the arranging strip along the length direction; A slider accommodating cavity is provided at the bottom of the arranging strip corresponding to the slide groove; A slider is slidably provided in the slider accommodating cavity, and an ear strap hanging column is upwardly provided on the slider; the ear strap hanging column extends upwardly from the arranging strip; A spring is provided between the slider and the side wall of the slider accommodating cavity near the bottom plate; A strip arranging plate driving device is provided on the lower surface of the bottom plate; the side wall of the slider close to the spring is connected to the strip arranging plate driving device via a rope; The earband hot pressing device comprises: A rotary drive device is installed between the active roller and the driven roller, wherein the rotary drive device extends a rotating shaft to both sides of the belt, a swing rod is installed on the rotating shaft, and a hot pressing plate adapted to the bottom plate is installed between the two swing rods; The rotary drive device drives the swing rod to move the hot pressing plate forward and downward to the bottom plate position or to return the hot pressing plate to above the rotary drive device; A pressing device is also provided on the bottom plates on both sides of the sorting strips, and the pressing device includes an L-shaped pressing plate hingedly connected to the side of the bottom plate, and a rotation spring is coaxially provided at the hinge of the pressing plate to enable the pressing plate to rotate to fit the upper surface of the bottom plate without external force; a pressing plate driving device is provided on the corresponding pressing plate on the lower surface of the bottom plate; the short arm of the L-shaped pressing plate is located below the bottom plate and is connected to the pressing plate driving device through a rope.

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