An edge sealing device for a vertical folding mask fully automatic mask production equipment

Abstract

The present invention discloses an edge sealing device of a vertical folding mask fully automatic mask production equipment, comprising a clamping mechanism, a folding mechanism, a transfer mechanism and an edge sealing mechanism; the clamping mechanism comprises a material receiving platform, a forming plate and a clamping drive mechanism, and the material receiving platform and the forming plate are provided with an escape groove that passes through from top to bottom at a position corresponding to the folding position of the mask body; the folding mechanism comprises a folding plate and a folding drive mechanism, and the folding plate is arranged directly below the escape groove; the transfer mechanism is arranged above the clamping mechanism, and comprises a clamping mechanism and a clamping drive mechanism; the edge sealing mechanism comprises an edge sealing movable mold, an ultrasonic welding head arranged opposite to the edge sealing movable mold, and an edge sealing drive mechanism that drives the edge sealing movable mold to move. The edge sealing device of the present invention can realize the separate folding and edge sealing of the mask body in the mask matrix, and has the advantages of fast speed, high efficiency and small error.

Description

Technical Field

[0001] The invention relates to mask production equipment, in particular to an edge sealing device of a vertical folding mask fully automatic mask production equipment. Background Art

[0002] At present, there are two main types of production of vertical folding masks (such as KN95 masks): semi-automatic and fully automated. Semi-automatic vertical folding mask production equipment includes sheeting module, ear wire welding module, edge sealing module and other main equipment. The sheeting machine is used to composite multiple layers of fabrics together by ultrasonic means and insert them into the bridge of the nose, followed by knurling and trimming to obtain sheet-like intermediate products; then they are manually transferred to the ear wire welding module for ear wire welding, and finally edge sealing. Semi-automatic vertical folding mask production equipment has the disadvantages of low efficiency, high labor costs, and large equipment space occupation.

[0003] The fully automated vertical folding mask production equipment overcomes the above-mentioned shortcomings of semi-automatic equipment and realizes the fully automated production of vertical folding masks from loading to finished products. The fully automated vertical folding mask production equipment mainly includes a feeding module, a nose line insertion module, a knurling module, an ear line welding module, a folding module, an edge sealing module, a trimming module and a waste collection module, wherein the feeding module is used to transport multiple rolls of fabric to subsequent production stations; the nose line insertion module is used to fix the nose line on the fabric; the knurling module is used to perform ultrasonic rolling on the edge and inside of the vertical folding mask to achieve composite connection of multiple layers of fabric at the rolling point; the ear line welding module is used to weld the ear line to the composite mask base; the folding module is used to fold the mask base along the center of the mask; the edge sealing module is used to seal the two sides of the folded mask base to enclose a cup-shaped space; the edge cutting module is used to cut the mask from the mask base to obtain a finished vertical folding mask; the waste collection module is used to collect the waste after cutting the finished vertical folding mask. The existing fully automated vertical folding mask production equipment greatly reduces labor input and improves production efficiency, but there are still the following deficiencies:

[0004] In the process of folding the mask, the traditional fully automated vertical folding mask production equipment folds the entire mask base through the folding module, that is, through two sets of vertically arranged and mutually coordinated rollers, the mask base gradually transitions from a horizontal conveying state to a vertical conveying state. During this transition process, the two sides of the mask base gradually fold toward the middle. When the mask base passes through the two sets of rollers, the mask base is folded. The above folding method is not only slow, but also when the mask base is folded, if an error occurs, that is, the two sides of the mask base cannot be completely aligned, then it will inevitably affect the subsequent mask base, and it is more likely to have cumulative errors, resulting in the manufactured mask not meeting the qualification requirements. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an edge sealing device for a vertical folding mask fully automatic mask production equipment, the edge sealing device can realize the individual folding and edge sealing of the mask body in the mask matrix, and has the advantages of high speed, high efficiency and small error.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A vertical folding mask fully automatic mask production equipment edge sealing device, including a clamping mechanism for clamping a mask body, a folding mechanism for folding the mask body in half, and a transfer mechanism for transferring the folded mask body to an edge sealing station, and an edge sealing mechanism for sealing the mask locally, wherein the clamping mechanism includes a material receiving platform, a forming plate arranged above the material receiving platform, and a clamping drive mechanism for driving the material receiving platform to move upward to clamp the mask body, and the material receiving platform and the forming plate are provided at positions corresponding to the folded positions of the mask body. There is an avoidance groove that runs through from top to bottom; the folding mechanism includes a folding plate and a folding driving mechanism that drives the folding plate to move up and down, and the folding plate is arranged directly below the avoidance groove; the folding plate pushes the mask body to pass through the avoidance groove; the transfer mechanism is arranged above the clamping mechanism, including a clamping mechanism for clamping the folded mask body and a clamping driving mechanism that drives the clamping mechanism to move to the edge sealing station; the edge sealing mechanism includes an edge sealing movable mold, an ultrasonic welding head arranged opposite to the edge sealing movable mold, and an edge sealing driving mechanism that drives the edge sealing movable mold to move.

[0008] Preferably, the forming plate is provided with a guiding mechanism for guiding the folded mask body to move up and down, the guiding mechanism is composed of two baffles arranged opposite to each other, one end of the guiding mechanism is connected to the forming groove of the forming plate, and the other end extends to the edge sealing station.

[0009] Preferably, the clamping mechanism comprises a first clamping block, a second clamping block and a clamping cylinder for driving the first clamping block and the second clamping block to clamp or release, wherein the telescopic rod of the clamping cylinder is respectively connected to the first clamping block and the second clamping block.

[0010] Preferably, the clamping drive mechanism includes a first bracket arranged on the forming plate and a linear cylinder arranged on the first bracket, wherein the linear cylinder is installed on the first bracket, and the telescopic rod of the linear cylinder is connected to the cylinder body of the clamping cylinder through a connecting block.

[0011] Preferably, the clamping drive mechanism also includes a vertical guiding mechanism, which is divided into two groups. Each group of vertical guiding mechanisms includes a guide rod arranged on the first bracket and a guide hole arranged on the connecting block and cooperating with the guide rod, wherein the guide rod vertically passes through the guide hole.

[0012] Preferably, the edge banding driving mechanism includes a second bracket and a driving cylinder arranged on the second bracket, wherein the driving cylinder is installed on the second bracket, and the telescopic rod of the driving cylinder is connected to the edge banding movable mold; a transverse guiding mechanism is also arranged between the edge banding movable mold and the second bracket, and the transverse guiding mechanism is divided into four groups, each group includes a guide sleeve arranged on the second bracket and a guide rod arranged on the edge banding movable mold, wherein the guide rod is installed on the guide sleeve.

[0013] Preferably, a positioning frame is provided below the forming plate, and the positioning frame is located directly above the feeding strip pushing plate, and is used for guiding and limiting the mask body on the feeding platform.

[0014] Preferably, the clamping drive mechanism is driven by a cylinder, or a motor and a screw drive mechanism are combined; the folding drive mechanism is driven by a cylinder, or a motor and a screw drive mechanism are combined.

[0015] The working principle of the edge sealing device of the vertical folding mask fully automatic mask production equipment of the present invention is:

[0016] When the mask body with the ear wires welded is transported to the material platform, the folded part on the mask body is aligned with the avoidance groove, and the tight driving mechanism drives the material receiving platform to move upward, thereby clamping the mask body between the material receiving platform and the forming plate; then the folding driving mechanism in the folding mechanism drives the folding plate to move upward, and the folding plate passes through the avoidance groove to push the mask body upward, so that the mask body forms a folded state; then, the clamping mechanism in the transfer mechanism clamps the folded mask body, and transfers the folded mask body to the edge sealing station under the drive of the clamping driving mechanism; the edge sealing driving mechanism in the edge sealing mechanism drives the sealing plate movable mold to press the mask body against the ultrasonic welding head, thereby applying hot air to the edge of the mask body to form a vertical folded mask.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The edge sealing device of the vertical folding mask fully automatic mask production equipment of the present invention first drives the mask body to be pressed against the forming plate through the clamping drive mechanism, and then drives the folding plate to move vertically through the folding drive mechanism, so that the mask body is driven by the folding plate to pass through the avoidance groove to achieve folding, and then the folded mask body is transferred to the edge sealing station through the transfer mechanism, and the edge sealing mechanism performs edge sealing on the mask body. This is not only fast and efficient, but also has higher folding accuracy and is not prone to cumulative errors. Thereby ensuring the quality of the mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1-Figure 3 Schematic diagram of the three-dimensional structure from three different perspectives of the first specific embodiment of the edge sealing device of the vertical folding mask fully automatic mask production equipment of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure after removing the transfer mechanism.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the transfer mechanism. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with examples and drawings, but the embodiments of the present invention are not limited thereto.

[0023] See also Figure 1-Figure 5 The edge sealing device of the vertical folding mask fully automatic mask production equipment of the present invention includes a clamping mechanism 1 for clamping the mask body, a folding mechanism 2 for folding the mask body in half, a transfer mechanism 3 for transferring the folded mask body to the edge sealing station, and an edge sealing mechanism 4 for sealing the mask locally.

[0024] See also Figure 1-Figure 5 The clamping mechanism 1 includes a material receiving platform 1-1, a forming plate 1-2 arranged above the material receiving platform 1-1, and a clamping drive mechanism 1-3 that drives the material receiving platform 1-1 to move upward to clamp the mask body. The material receiving platform 1-1 and the forming plate 1-2 are provided with vertically through avoidance grooves at positions corresponding to the folding positions of the mask body; wherein the clamping drive mechanism 1-3 can be driven by a cylinder, or by a combination of a motor and a screw transmission mechanism.

[0025] See also Figure 1-Figure 5 The folding mechanism 2 includes a folding plate 2-1 and a folding driving mechanism 2-2 for driving the folding plate 2-1 to move up and down, wherein the folding plate 2-1 is arranged directly below the avoidance groove, and the folding driving mechanism 2-2 can be driven by a cylinder, or by a combination of a motor and a screw transmission mechanism.

[0026] The transfer mechanism 3 is arranged above the clamping mechanism 1, and includes a clamping mechanism for clamping the folded mask body and a clamping drive mechanism for driving the clamping mechanism to move to the edge banding station, wherein the clamping mechanism includes a first clamping block 3-1, a second clamping block 3-2 and a clamping cylinder 3-3 for driving the first clamping block 3-1 and the second clamping block 3-2 to clamp or release, wherein the telescopic rod of the clamping cylinder 3-3 is respectively connected to the first clamping block 3-1 and the second clamping block 3-2; the clamping drive mechanism includes a first bracket 3-4 arranged on the forming plate 1-2 and a linear cylinder 3-5 arranged on the first bracket 3-4, wherein the linear cylinder 3-5 is installed on the first bracket 3-4, and the telescopic rod of the linear cylinder 3-5 is connected to the cylinder body of the clamping cylinder 3-3 through a connecting block 3-6. When the linear cylinder 3-5 drives the clamping mechanism to move vertically to the folded mask body, the clamping cylinder 3-3 drives the first clamping block 3-1 and the second clamping block 3-2 to move toward each other to clamp the folded mask; then the linear cylinder 3-5 drives the clamping mechanism to move vertically to the edge sealing station, and the edge sealing mechanism 4 seals the mask body. In this embodiment, the linear cylinder 3-5 of the present invention can be replaced by a motor and a screw transmission mechanism.

[0027] The edge-sealing mechanism 4 includes an edge-sealing movable mold 4-1, an ultrasonic welding head 4-2 arranged opposite to the edge-sealing movable mold 4-1, and an edge-sealing driving mechanism for driving the edge-sealing movable mold 4-1 to move, wherein the edge-sealing driving mechanism includes a second bracket 4-3, a driving cylinder 4-4 arranged on the second bracket 4-3, wherein the driving cylinder 4-4 is installed on the second bracket 4-3, and the telescopic rod of the driving cylinder 4-4 is connected to the edge-sealing movable mold 4-1; a transverse guide mechanism 4-5 is also arranged between the edge-sealing movable mold 4-1 and the second bracket 4-3, and the transverse guide mechanism 4-5 is four groups, each group includes a guide sleeve arranged on the second bracket 4-3 and a guide rod arranged on the edge-sealing movable mold 4-1, wherein the guide rod is installed on the guide sleeve. The edge-sealing movable mold 4-1 is driven to move by the driving cylinder 4-4, so that the folded mask body is pressed tightly at the ultrasonic welding head to complete the edge-sealing process of the mask body.

[0028] See also Figure 1-Figure 5 The avoidance groove in the molding plate 1-2 is a molding groove, and the folding plate 2-1 pushes the mask body to pass through the molding groove. By setting the molding groove, the mask body passes through the molding groove under the drive of the folding plate 2-1. The molding groove is a slit structure. The mask body passing through the molding groove is naturally folded, and positioning during the folding process is achieved, so that the mask body can be accurately folded.

[0029] See also Figure 1-Figure 5The forming plate 1-2 is provided with a guide mechanism 1-4 for guiding the folded mask body to move up and down. The guide mechanism 1-4 is composed of two baffles arranged opposite to each other. One end of the guide mechanism 1-4 is connected to the forming groove of the forming plate 1-2, and the other end extends to the edge sealing station. By providing the guide mechanism 1-4, the folded mask body can be positioned and guided during the process of the transfer mechanism 3 clamping the mask body and sending it to the edge sealing station, so that the mask body can be accurately transferred to the edge sealing station.

[0030] See also Figure 1-Figure 5 The clamping drive mechanism also includes a vertical guide mechanism 3-7, which is divided into two groups. Each group of vertical guide mechanisms 3-7 includes a guide rod provided on the first bracket 3-4 and a guide hole provided on the connecting block 3-6 and matched with the guide rod, wherein the guide rod vertically passes through the guide hole. By providing the vertical guide mechanism 3-7, the vertical movement of the clamping mechanism can be guided to ensure its movement accuracy, so as to accurately transfer the folded mask to the edge sealing station.

[0031] See also Figure 1-Figure 5 , a positioning frame 1-5 is provided below the molding plate 1-2, and the positioning frame 1-5 is located just above the feeding strip push plate, and is used to guide and limit the mask body on the feeding platform. When the clamping drive mechanism 1-3 drives the feeding platform to move vertically and cooperate with the molding plate 1-2, the positioning frame 1-5 can guide and limit the mask body in the feeding platform, so that the mask body moves vertically in the positioning frame 1-5, and the inner cavity of the positioning frame 1-5 limits the mask body, so that the mask body does not deviate, that is, the center position of the mask body is located at the avoidance groove, so that when the folding drive mechanism 2-2 drives the folding plate 2-1 to move upward, the upper end of the folding plate 2-1 contacts the bisector of the mask and drives the mask body to pass through the avoidance groove and enter the molding plate 1-2, so as to achieve accurate folding of the mask body.

[0032] See also Figure 1-Figure 5 The working principle of the edge sealing device of the vertical folding mask fully automatic mask production equipment of the present invention is:

[0033] When the mask body with the ear wires welded is transported to the material platform, the folded part on the mask body is aligned with the avoidance groove, and the tight driving mechanism drives the material receiving platform 1-1 to move upward, thereby clamping the mask body between the material receiving platform 1-1 and the forming plate 1-2; then the folding driving mechanism 2-2 in the folding mechanism 2 drives the folding plate 2-1 to move upward, and the folding plate 2-1 passes through the avoidance groove to push the mask body upward, so that the mask body forms a folded state; then, the clamping mechanism in the transfer mechanism 3 clamps the folded mask body, and transfers the folded mask body to the edge sealing station under the drive of the clamping driving mechanism; the edge sealing driving mechanism in the edge sealing mechanism 4 drives the sealing plate movable mold to press the mask body onto the ultrasonic welding head 4-2, thereby hot air is blown to the edge of the mask body to form a vertical folded mask.

[0034] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An edge sealing device for a vertical folding mask fully automatic mask production equipment, characterized in that: It includes a clamping mechanism for clamping the mask body, a folding mechanism for folding the mask body in half, a transfer mechanism for transferring the folded mask body to an edge sealing station, and an edge sealing mechanism for sealing the mask body, wherein: The clamping mechanism includes a material receiving platform, a forming plate arranged above the material receiving platform, and a clamping driving mechanism for driving the material receiving platform to move upward to clamp the mask body. The material receiving platform and the forming plate are provided with an escape groove extending vertically at a position corresponding to the folded position of the mask body. The folding mechanism includes a folding plate and a folding driving mechanism for driving the folding plate to move up and down, wherein the folding plate is arranged directly below the avoidance groove; the folding plate pushes the mask body to pass through the avoidance groove; The transfer mechanism is arranged above the clamping mechanism, and includes a clamping mechanism for clamping the mask body after being folded in half and a clamping driving mechanism for driving the clamping mechanism to move to the edge sealing station; The edge sealing mechanism comprises an edge sealing movable die, an ultrasonic welding head arranged opposite to the edge sealing movable die, and an edge sealing driving mechanism for driving the edge sealing movable die to move; The forming plate is provided with a guiding mechanism for guiding the folded mask body to move up and down, the guiding mechanism is composed of two baffles arranged opposite to each other, one end of the guiding mechanism is connected to the forming groove of the forming plate, and the other end extends to the edge sealing station; The clamping mechanism comprises a first clamping block, a second clamping block and a clamping cylinder for driving the first clamping block and the second clamping block to clamp or release, wherein the telescopic rod of the clamping cylinder is connected to the first clamping block and the second clamping block respectively.

2. The edge sealing device of the vertical folding mask fully automatic mask production equipment according to claim 1 is characterized in that: The clamping drive mechanism includes a first bracket arranged on the forming plate and a linear cylinder arranged on the first bracket, wherein the linear cylinder is installed on the first bracket, and a telescopic rod of the linear cylinder is connected to a cylinder body of the clamping cylinder through a connecting block.

3. The edge sealing device of the vertical folding mask fully automatic mask production equipment according to claim 2 is characterized in that: The clamping drive mechanism also includes a vertical guiding mechanism, which is divided into two groups. Each group of vertical guiding mechanisms includes a guide rod arranged on the first bracket and a guide hole arranged on the connecting block and matched with the guide rod, wherein the guide rod vertically passes through the guide hole.

4. The edge sealing device of the vertical folding mask fully automatic mask production equipment according to claim 1 is characterized in that: The edge banding driving mechanism includes a second bracket and a driving cylinder arranged on the second bracket, wherein the driving cylinder is installed on the second bracket, and the telescopic rod of the driving cylinder is connected to the edge banding movable mold; a transverse guiding mechanism is also arranged between the edge banding movable mold and the second bracket, and the transverse guiding mechanism is divided into four groups, each group includes a guide sleeve arranged on the second bracket and a guide rod arranged on the edge banding movable mold, wherein the guide rod is installed on the guide sleeve.

5. The edge sealing device of the vertical folding mask fully automatic mask production equipment according to claim 1 is characterized in that: The clamping drive mechanism is driven by a cylinder, or adopts a combination of a motor and a screw transmission mechanism; the folding drive mechanism is driven by a cylinder, or adopts a combination of a motor and a screw transmission mechanism.

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