Laminating and pressing device for mask production

Abstract

The utility model discloses a laminating and pressing device for mask production, which belongs to the technical field of mask processing and comprises a plurality of unreeling devices distributed at equal intervals up and down, guide rollers matched with the unreeling devices are arranged on the right sides of the unreeling devices, a first pressing roller group is arranged on the right sides of the guide rollers, and an edge pressing strip is arranged on the right side of the first pressing roller group. A second pressing roller set is arranged on the right side of the edge pressing strip, and a heat sealing mechanism is arranged on the edge pressing strip. The edge pressing strip is arranged on the workbench through symmetrically-distributed supporting and adjusting mechanisms, and cloth sequentially passes through the guide roller, the first pressing roller set, the edge pressing strip and the second pressing roller set after coming out of the unwinding device. In the cloth conveying process, the two ends of multiple layers of cloth are integrated and then conveyed into the edge pressing strip, so that the cloth is not prone to deviation in the feeding process, the problem that the edges are uneven or the sealing performance is poor after press fit is avoided, and the press fit quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of mask processing technology, and in particular to a lamination and pressing device for mask production. Background Technology

[0002] The lamination and pressing device is one of the core pieces of equipment in mask production. Its purpose is to heat-press and bond the mask's edges (especially the top and bottom edges) to prevent the delamination of multiple layers of materials (such as meltblown fabric and nonwoven fabric) and to block external pollutants from entering through edge gaps. Its performance directly affects the mask's sealing performance, uniformity, and production efficiency. However, existing pressing devices have a common problem: multiple layers of materials, such as meltblown fabric, nonwoven fabric, and skin-friendly layers, are prone to shifting during the feeding process, resulting in uneven edges or poor sealing after pressing. Based on this, this utility model proposes a lamination and pressing device for mask production. Utility Model Content

[0003] The purpose of this invention is to provide a lamination and pressing device for mask production, which solves the problem of easy deviation during the feeding process.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a lamination and pressing device for mask production, comprising several unwinding devices distributed equidistantly vertically. A matching guide roller is provided on the right side of each unwinding device. A pressing roller group one is provided on the right side of the guide roller. A pressing edge strip is provided on the right side of the pressing roller group one. A pressing roller group two is provided on the right side of the pressing edge strip. A heat-sealing mechanism is provided on the pressing edge strip. The pressing edge strip is mounted on a worktable via symmetrically distributed support and adjustment mechanisms. After the fabric exits from the unwinding device, it sequentially passes through the guide roller, pressing roller group one, pressing edge strip, and pressing roller group two.

[0006] Furthermore, meltblown fabric, nonwoven fabric, and a skin-friendly layer are wound around several of the unwinding devices.

[0007] Furthermore, the support adjustment mechanism includes symmetrically distributed support rods and fixed supports. Slide rods are symmetrically arranged between the support rods and the fixed supports. A movable support with its top flush with the fixed support is slidably arranged on the slide rod. A lead screw is threadedly connected to the center of the movable support. One end of the lead screw is rotatably mounted on the fixed support, and the other end passes through the support rod and is connected to a forward and reverse motor.

[0008] Furthermore, the pressure strips are symmetrically distributed on the upper surfaces of the fixed support and the movable support.

[0009] Furthermore, the pressing strip includes a body, and a pressing groove is provided on the inner side wall of the body. The inlet and outlet ends of the pressing groove are both provided with material guide ports.

[0010] Furthermore, the feed inlet is triangular in shape, and its surface is treated with a smooth transition.

[0011] Furthermore, the heat-sealing mechanism includes symmetrically distributed upper and lower pressing plates, which are located above and below the fabric. A support plate is provided above the upper pressing plate, and a cylinder is provided on the support plate to drive the upper pressing plate to move up and down. A base is provided below the lower pressing plate, and a cylinder is provided on the base to drive the lower pressing plate to move up and down.

[0012] Furthermore, the upper and lower pressing plates have the same structure, both including a heat-sealing block. The heat-sealing block has symmetrically arranged edge-pressing blocks on its end face near the fabric. A mold is arranged on the end face of the heat-sealing block away from the fabric. A movable plate is connected to the end of the mold away from the heat-sealing block via several symmetrically distributed connecting rods. The movable plate is connected to the telescopic end of cylinder one / cylinder two. A connecting hole is provided at the center of the movable plate. Several guide post mounting holes are arranged around the connecting hole. A guide post is installed in each guide post mounting hole, and the other end of each guide post slidably passes through the support plate / base and is located on the outside of the support plate / base.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This utility model of a laminated pressing device for mask production, during the fabric conveying process, especially before pressing, integrates the two ends of multiple layers of fabric before conveying them into the edge-pressing strip. This prevents the fabric from shifting during feeding, avoiding problems such as uneven edges or poor sealing after pressing. Furthermore, the edge-pressing blocks of the upper and lower pressing plates of the heat-sealing mechanism precisely heat-seal the multiple layers of fabric, further improving the pressing quality and efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of the lamination and pressing device for mask production according to this utility model;

[0017] Figure 2 This is a side view of the heat sealing mechanism;

[0018] Figure 3 This is a schematic diagram of the heat sealing mechanism;

[0019] Figure 4 This is a schematic diagram of the upper and lower pressure plates structure;

[0020] Figure 5 This is a schematic diagram of the edge banding structure;

[0021] Explanation of reference numerals in the attached drawings: 1. Unwinding device; 2. Guide roller; 3. Fabric; 4. Support and adjustment mechanism; 5. Edge pressing strip; 6. Heat sealing mechanism; 7. Pressing roller group two; 8. Pressing roller group one;

[0022] 401. Support rod; 402. Lead screw; 403. Slide rod; 404. Moving support; 405. Fixed support;

[0023] 501. Body; 502. Edge pressing groove; 503. Material guide port;

[0024] 601. Support plate; 602. Upper pressing plate; 603. Lower pressing plate; 604. Base;

[0025] 6021, heat-sealing block; 6022, pressure block; 6023, mold; 6024, connecting rod; 6025, moving plate; 6026, guide post mounting hole; 6027, connecting hole. Detailed Implementation

[0026] like Figure 1-5 As shown, a lamination and pressing device for mask production includes several unwinding devices 1 distributed equidistantly vertically. Meltblown fabric, nonwoven fabric, and a skin-friendly layer are wound around each of the unwinding devices 1. A matching guide roller 2 is installed on the right side of each unwinding device 1 to guide the fabric towards the center, forming three parallel layers (upper, middle, and lower). A pressing roller group 8 is installed on the right side of the guide roller 2 for initial pressing, forming the three layers of fabric into a single unit, facilitating subsequent transportation and pressing operations. Furthermore, multiple pressing roller groups 8 can be used depending on the actual needs.

[0027] A pressing strip 5 is installed on the right side of the pressing roller group 8, and a second pressing roller group 7 is installed on the right side of the pressing strip 5. A heat sealing mechanism 6 is installed on the pressing strip 5. After the fabric 3 reaches the heat sealing mechanism 6, the transport stops, and the heat sealing mechanism 6 heats the fabric 3. After the heat sealing mechanism 6 finishes, the fabric 3 continues to be transported until it reaches a position where its width is exactly the same as the position where the heat sealing mechanism 6 heats the fabric. Then the transport stops again, and the fabric continues to be heat sealed by the heat sealing mechanism 6. This cycle is repeated to achieve continuous heat sealing of the fabric 3.

[0028] The edge-pressing strip 5 includes a body 501, on the inner sidewall of which an edge-pressing groove 502 is formed. The two sides of the fabric are placed in the edge-pressing groove 502 to prevent the fabric from shifting and to ensure that the two sides of the fabric are neatly arranged during transportation. The inlet and outlet ends of the edge-pressing groove 502 are provided with guide ports 503. The guide ports 503 are triangular in shape and their surfaces are smoothly rounded to facilitate the entry and exit of the fabric.

[0029] The edge pressing strip 5 is mounted on the workbench via a symmetrically distributed support adjustment mechanism 4. The support adjustment mechanism 4 includes symmetrically distributed support rods 401 and fixed supports 405. A sliding rod 403 is symmetrically installed between the support rods 401 and the fixed supports 405. A movable support 404, with its top flush with the fixed supports 405, is slidably mounted on the sliding rods 403. A lead screw 402 is threadedly connected to the center of the movable support 404. One end of the lead screw 402 is rotatably mounted on the fixed support 405, and the other end extends through the support rods 401 and is connected to a forward / reverse motor. The edge pressing strips 5 are symmetrically distributed on the upper surfaces of the fixed supports 405 and the movable support 404. Specifically, when the forward / reverse motor is started, the lead screw 402 rotates. According to the lead screw principle, the movable support 404 moves left and right along the sliding rods 403, causing the edge pressing strips 5 at its upper end to move together, thereby adjusting the distance between the left and right edge pressing strips 5, facilitating edge pressing of fabrics of different widths.

[0030] The heat-sealing mechanism 6 includes symmetrically distributed upper pressing plates 602 and lower pressing plates 603, located above and below the fabric 3. A support plate 601 is installed above the upper pressing plate 602, and a cylinder is mounted on the support plate 601 to drive the upper pressing plate 602 to move up and down. A base 604 is installed below the lower pressing plate 603, and a second cylinder is mounted on the base 604 to drive the lower pressing plate 603 to move up and down. In this embodiment, the pressing operation of the pressing plates on the edge of the mask is achieved by rapidly pushing out the upper and lower pressing plates driven by the cylinders.

[0031] The upper pressing plate 602 and the lower pressing plate 603 have the same structure, both including a heat-sealing block 6021. The heat-sealing block 6021 generates heat by connecting to an external power source. Edge-pressing blocks 6022 are symmetrically installed on the left and right sides of the heat-sealing block 6021 near the end face of the fabric 3. The edge-pressing blocks 6022 are used to press the edges of the fabric 3 together. When the bottom temperature of the edge-pressing block 6022 reaches the temperature required for heat sealing of the fabric 3, high temperature and pressure are used to bond the various layers of the mask together through thermoplastic deformation. This hot-pressing method allows the molecules of the materials to permeate and combine under certain temperature and pressure conditions, thereby achieving a good pressing effect and forming a strong structure to ensure the mask's filtration performance, fit, and other quality indicators.

[0032] A mold 6023 is mounted on the end face of the heat-sealing block 6021 away from the fabric 3 for mounting the heat-sealing block 6021. A movable plate 6025 is mounted on one end of the mold 6023 away from the heat-sealing block 6021 via several symmetrically distributed connecting rods 6024. The movable plate 6025 is connected to the telescopic ends of cylinder one / cylinder two. A connecting hole 6027 is installed at the center of the movable plate 6025. Several guide post mounting holes 6026 are installed around the connecting hole 6027. Guide posts are installed in the guide post mounting holes 6026, and the other end of each guide post slidably passes through the support plate 601 / base 604 and is located outside the support plate 601 / base 604. The telescopic movement of cylinder one / cylinder two drives the movable plate 6025 to move up and down, thereby achieving mutual compression and separation of the vertically distributed heat-sealing blocks 6021, and heat-sealing the fabric 3 during compression. In addition, depending on the actual situation, the upper pressing plate 602 can remain stationary while the lower pressing plate 603 moves up and down; the upper pressing plate 602 can move up and down while the lower pressing plate 603 remains stationary; or the upper pressing plate 602 and the lower pressing plate 603 can move up and down simultaneously.

[0033] The operation process of this utility model is as follows:

[0034] First, after the fabric 3 comes out of the unwinding device 1, it is guided by the guide roller 2 and enters the pressing roller group 8 according to its different distribution positions for preliminary pressing to form a whole. Then, the edge of the fabric 3 enters the edge pressing strip 5. Under the restraint of the edge pressing strip 5, the heat sealing mechanism 6 performs heat sealing operation, and the materials of each layer are bonded together by thermoplastic deformation. Finally, the heat-sealed fabric 3, except for the edge pressing strip 5, continues to be transported to the pressing roller group 7 for further pressing.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A lamination and pressing device for mask production, characterized in that: It includes several unwinding devices (1) distributed equidistantly at different heights. A guide roller (2) is provided on the right side of the unwinding device (1). A pressing roller group one (8) is provided on the right side of the guide roller (2). A pressing edge strip (5) is provided on the right side of the pressing roller group one (8). A pressing roller group two (7) is provided on the right side of the pressing edge strip (5). A heat sealing mechanism (6) is provided on the pressing edge strip (5). The pressing edge strip (5) is set on the worktable through a symmetrically distributed support and adjustment mechanism (4). After the fabric (3) comes out of the unwinding device (1), it passes through the guide roller (2), pressing roller group one (8), pressing edge strip (5) and pressing roller group two (7) in sequence.

2. The lamination and pressing device for mask production according to claim 1, characterized in that: Meltblown fabric, nonwoven fabric, and skin-friendly layer are wound around several of the unwinding devices (1).

3. The lamination and pressing device for mask production according to claim 1, characterized in that: The support adjustment mechanism (4) includes symmetrically distributed support rods (401) and fixed supports (405). Slide rods (403) are symmetrically arranged between the support rods (401) and the fixed supports (405). A movable support (404) with its top flush with the fixed support (405) is slidably arranged on the slide rods (403). A lead screw (402) is threadedly connected to the center of the movable support (404). One end of the lead screw (402) is rotatably arranged on the fixed support (405), and the other end passes through the support rods (401) and is connected to a forward and reverse motor.

4. The lamination and pressing device for mask production according to claim 3, characterized in that: The pressing strips (5) are symmetrically distributed on the upper surfaces of the fixed support (405) and the movable support (404).

5. The lamination and pressing device for mask production according to claim 1, characterized in that: The pressing strip (5) includes a body (501), and a pressing groove (502) is provided on the inner side wall of the body (501). The inlet and outlet ends of the pressing groove (502) are provided with guide ports (503).

6. The lamination and pressing device for mask production according to claim 5, characterized in that: The feed inlet (503) is triangular in shape and its surface is rounded.

7. The lamination and pressing device for mask production according to claim 1, characterized in that: The heat sealing mechanism (6) includes an upper pressing plate (602) and a lower pressing plate (603) symmetrically distributed, the upper pressing plate (602) and the lower pressing plate (603) being located above and below the fabric (3); a support plate (601) is provided above the upper pressing plate (602), and a cylinder is provided on the support plate (601) to drive the upper pressing plate (602) to move up and down; a base (604) is provided below the lower pressing plate (603), and a cylinder is provided on the base (604) to drive the lower pressing plate (603) to move up and down.

8. The lamination and pressing device for mask production according to claim 7, characterized in that: The upper pressing plate (602) and the lower pressing plate (603) have the same structure, both including a heat sealing block (6021). The heat sealing block (6021) has symmetrically arranged edge pressing blocks (6022) on its end face near the fabric (3). A mold (6023) is arranged on the end face of the heat sealing block (6021) away from the fabric (3). A movable plate (6025) is arranged at the end of the mold (6023) away from the heat sealing block (6021) via several symmetrically distributed connecting rods (6024). The movable plate (6025) is connected to the telescopic end of cylinder one / cylinder two; a connecting hole (6027) is provided at the center of the movable plate (6025), and a plurality of guide post mounting holes (6026) are provided around the connecting hole (6027). A guide post is provided in the guide post mounting hole (6026), and the other end of the guide post can slide through the support plate (601) / base (604) and is located on the outside of the support plate (601) / base (604).

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