Pressing device for medical surgical mask

Abstract

The utility model relates to the field of mask production, in particular to a pressing device for a medical surgical mask, and aims to solve the technical problem that in the prior art, a nose clip needs to be cut in advance and then hot-pressed to different masks, and the efficiency is low. Comprising a pressing plate, an air cylinder, a heat sealing pressing rod, a heat sealing pressing plate, a pressing rod hole, a pressing plate groove, a pressing block 7, a limiting sliding groove, a limiting piece, a nose clip feeding groove 10, a nose clip strip 11 and a straightening conveying mechanism 12, the nose clip strip is conveyed to the lower portion of the heat sealing pressing plate through the nose clip feeding groove, the pressing block flattens a mask firstly, then the heat sealing pressing plate is pressed downwards to be matched with the pressing block, and the nose clip strip is sheared and hot-pressed to the mask; the heat sealing pressing rods synchronously conduct heat sealing on the edges of the masks, the heat sealing efficiency is very high, and the nose clamping strips are conveyed into the nose clamping feeding groove and are straightened through the straightening conveying mechanism to be prevented from being bent and inclined.

Description

Technical Field

[0001] The utility model relates to the field of mask production, in particular to a pressing device for medical surgical masks. Background Technique

[0002] The pressing of surgical masks refers to the process of tightly combining various layers of materials of the mask through mechanical means during mask production to form a mask body with certain strength and tightness. This technology is crucial for ensuring the filtration efficiency and wearing comfort of the mask. Thermal pressing is one of the most common mask pressing technologies. In this process, the mask materials are heated to a certain temperature and then pressure is applied to weld them together. This method is applicable to thermoplastic materials such as non-woven fabrics made of polypropylene. Thermal pressing can achieve high production efficiency;

[0003] In the prior art, the nose clips need to be pre-cut and then thermally pressed onto different masks respectively, resulting in low efficiency. The utility model solves the above problems. Content of the Utility Model

[0004] In order to solve the technical problem that the nose clips in the prior art need to be pre-cut and then thermally pressed onto different masks respectively, resulting in low efficiency, the utility model further provides a pressing device for medical surgical masks.

[0005] A pressing device for medical surgical masks includes: a pressing plate, which is lifted and lowered by an upper cylinder. The lower surface of the pressing plate is connected with heat-sealing pressure rods and a heat-sealing pressing plate. The heat-sealing pressure rods are evenly distributed on the four sides of the pressing plate. The heat-sealing pressing plate is close to one long side of the pressing plate. The heat-sealing pressure rods and the heat-sealing pressing plate are respectively slidably connected in the pressure rod holes and the pressing plate grooves. The pressure rod holes and the pressing plate grooves are vertically opened in the pressing block. The heat-sealing pressure rods and the heat-sealing pressing plate are longer than the pressure rod holes and the pressing plate grooves. A limiting sliding groove is opened in the middle of the pressing plate groove. The heat-sealing pressing plate is slidably connected in the limiting sliding groove through a limiting piece. When the limiting piece contacts the top wall of the pressing plate groove, there is a gap between the lower end of the heat-sealing pressing plate and the lower surface of the pressing block. A nose clip feeding groove is opened in the pressing block in the longitudinal direction within the gap. A nose clip strip is slidably connected in the nose clip feeding groove. A hot melt adhesive layer is provided on the lower surface of the nose clip strip. The heat-sealing pressure rods and the heat-sealing pressing plate are connected to a heating element.

[0006] Further, the nose clip strip is conveyed into the nose clip feeding groove through a straightening and conveying mechanism. The straightening and conveying mechanism includes a bottom plate. A bearing seat is connected to the upper surface of the bottom plate. A pressure roller shaft is rotatably connected in the bearing seat. A pressure roller is rotatably connected to the pressure roller shaft. The pressure roller presses the nose clip strip against the bottom plate.

[0007] Further, a heating element is provided on the wall of the pressure rod hole, and a heating element is provided inside the heat-sealing pressing plate.

[0008] Advantages of the Utility Model

[0009] 1. The nose clip strip is conveyed to the lower part of the heat-sealing pressing plate through the nose clip feeding groove. First, the pressing block flattens the mask, and then the heat-sealing pressing plate presses down and cooperates with the pressing block to shear and hot-press the nose clip strip onto the mask. At the same time, the heat-sealing pressing rod heat-seals and seals the edge of the mask, with very high heat-sealing efficiency.

[0010] 2. Before the nose clip strip is conveyed into the nose clip feeding groove, it is straightened by the straightening and conveying mechanism to prevent the nose clip strip from bending and tilting. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] Figure 2 is a schematic cross-sectional view of the structure of the present utility model Figure 1 ;

[0013] Figure 3 is a schematic cross-sectional view of the structure of the present utility model Figure 2 ;

[0014] Figure 4 is an exploded schematic view of the structure of the present utility model.

[0015] In the figure: pressing plate 1; air cylinder 2; heat-sealing pressing rod 3; heat-sealing pressing plate 4; pressing rod hole 5, pressing plate groove 6; pressing plate groove 6; pressing block 7; limiting sliding groove 8; limiting piece 9; nose clip feeding groove 10; nose clip strip 11; straightening and conveying mechanism 12; bottom plate 121; bearing seat 122; pressing roller shaft 123; pressing roller 124, pressing roller 124. Detailed Description of the Embodiment

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The term "rotational connection" in this device refers to that by baking the bearing on the shaft, a spring retaining ring groove is provided on the shaft or the shaft hole, and the axial fixation of the bearing is realized by clamping the elastic retaining ring in the retaining ring groove to achieve rotation; the term "hinged connection" refers to a connection method that is movable on connecting parts such as hinges, pin shafts, and short shafts.

[0018] The present utility model will be described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment 1:

[0020] Next, in conjunction with the attached Figures 1-4This embodiment describes a pressing device for a medical surgical mask, which includes: a pressing plate 1 that is lifted and lowered by an upper cylinder 2. The lower surface of the pressing plate 1 is connected with heat-sealing pressure rods 3 and a heat-sealing pressing plate 4. The heat-sealing pressure rods 3 are evenly distributed on the four sides of the pressing plate 1. The heat-sealing pressing plate 4 is close to one side of the long edge of the pressing plate 1. The heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 are respectively slidably connected in the pressure rod holes 5 and the pressing plate grooves 6. The pressure rod holes 5 and the pressing plate grooves 6 are vertically opened in the pressing block 7. The heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 are longer than the pressure rod holes 5 and the pressing plate grooves 6. A limiting sliding groove 8 is opened in the middle of the pressing plate groove 6. The heat-sealing pressing plate 4 is slidably connected in the limiting sliding groove 8 through a limiting piece 9. When the limiting piece 9 contacts the top wall of the pressing plate groove 6, there is a gap between the lower end of the heat-sealing pressing plate 4 and the lower surface of the pressing block 7. A nose clip feeding groove 10 is longitudinally opened in the pressing block 7 within the gap. A nose clip strip 11 is slidably connected in the nose clip feeding groove 10. A hot melt adhesive layer is provided on the lower surface of the nose clip strip 11. The heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 are connected to a heating element;

[0021] During use, the mask is conveyed to the lower part of the pressing block 7. The nose clip strip 11 is inserted into the nose clip feeding groove 10. The heating elements of the heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 are turned on. The pressing plate 1 is controlled to press down by the cylinder 2. The pressing plate 1 drives the pressing block 7 to press down to the mask through the heat-sealing pressing plate 4 and the limiting piece 9. After the pressing block 7 flattens the mask, the heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 continue to slide down. The heat-sealing pressing plate 4 contacts the lower nose clip strip 11 and cooperates with the inner wall of the pressing plate groove 6 to cut the nose clip strip 11. Since the heat-sealing pressure rods 3 and the heat-sealing pressing plate 4 are longer than the pressure rod holes 5 and the pressing plate grooves 6, the heat-sealing pressing plate 4 presses the cut nose clip strip 11 tightly on the mask. The hot melt adhesive on the lower surface of the nose clip strip 11 melts, completing the heat-sealing with the mask. The heat-sealing pressure rods 3 synchronously heat-seal and seal the four sides of the mask, and the heat-sealing efficiency is very high.

[0022] The nose clip strip 11 is conveyed into the nose clip feeding groove 10 through a straightening conveying mechanism 12. The straightening conveying mechanism 12 includes a bottom plate 121. A bearing seat 122 is connected to the upper surface of the bottom plate 121. A pressure roller shaft 123 is rotatably connected in the bearing seat 122. A pressure roller 124 is rotatably connected to the pressure roller shaft 123. The pressure roller 124 presses the nose clip strip 11 tightly on the bottom plate 121;

[0023] During conveying, the power of the pressure roller shaft 123 is turned on. The pressure roller shaft 123 drives the pressure roller 124 to rotate. The pressure roller 124 conveys the nose clip strip 11 and cooperates with the bottom plate 121 to straighten the nose clip strip 11, preventing the nose clip strip from bending and tilting.

[0024] A heating element is provided on the wall of the pressure rod hole 5, and a heating element is provided inside the heat-sealing pressing plate 4;

[0025] Heating inside the hole does not require an element to be built into the relatively thin heat-sealing pressure rod 3. The relatively large heat-sealing pressing plate 4 is suitable for internal installation.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pressing device for a medical surgical mask, comprising: The pressing plate (1) is lifted and lowered by the upper cylinder (2). The invention is characterized in that: the lower surface of the pressing plate (1) is connected with a heat sealing pressing rod (3) and a heat sealing pressing plate (4); the heat sealing pressing rod (3) is evenly distributed on the four sides of the pressing plate (1); the heat sealing pressing plate (4) is close to the long side of the pressing plate (1); the heat sealing pressing rod (3) and the heat sealing pressing plate (4) are respectively slidably connected in the pressing rod hole (5) and the pressing plate groove (6); the pressing rod hole (5) and the pressing plate groove (6) are both vertically opened in the pressing block (7); the heat sealing pressing rod (3) and the heat sealing pressing plate (4) are longer than the pressing rod hole (5) and the pressing plate groove (6); A limiting slide groove (8) is provided at the part, and the heat sealing pressure plate (4) is slidably connected to the limiting slide groove (8) through a limiting piece (9). When the limiting piece (9) contacts the top wall of the pressure plate groove (6), a gap is left between the lower end of the heat sealing pressure plate (4) and the lower surface of the pressing block (7). A nose clip feeding groove (10) is provided in the length direction of the pressing block (7) in the gap. A nose clip strip (11) is slidably connected in the nose clip feeding groove (10). A hot melt adhesive layer is provided on the lower surface of the nose clip strip (11). The heat sealing pressure rod (3) and the heat sealing pressure plate (4) are connected to the heating element.

2. A pressing device for a medical surgical mask according to claim 1, characterized in that: The nose clip strip (11) is transported into the nose clip feeding trough (10) through a straightening and conveying mechanism (12). The straightening and conveying mechanism (12) comprises a bottom plate (121). The upper surface of the bottom plate (121) is connected to a bearing seat (122). A pressure roller shaft (123) is rotatably connected inside the bearing seat (122). A pressure roller (124) is rotatably connected to the pressure roller shaft (123). The pressure roller (124) presses the nose clip strip (11) against the bottom plate (121).

3. The pressing device for a medical surgical mask according to claim 1, characterized in that: A heating element is provided on the wall of the pressure rod hole (5), and a heating element is provided inside the heat sealing pressure plate (4).

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