Trimming and shaping mechanism for mask machine

Abstract

The utility model relates to the technical field of mask machines, and provides an edge cutting and shaping mechanism for a mask machine. The edge cutting and shaping mechanism for the mask machine comprises a stretching and conveying assembly and a cutting assembly, the stretching and conveying assembly comprises a first conveying belt and a second conveying belt, the first conveying belt and the second conveying belt are attached up and down and synchronously run, and stretching protrusions are arranged on the first conveying belt; the stretching protrusions penetrate through the whole process of the first conveying belt along the outer surface of the first conveying belt, stretching pits which are the same as the stretching protrusions in shape are formed in the second conveying belt, and the stretching protrusions on the attaching faces of the first conveying belt and the second conveying belt are embedded into the stretching pits. According to the edge cutting and shaping mechanism for the mask machine, fabric can be stretched and pressed in two directions, the attaching effect of multiple layers of fabric is improved, and meanwhile the influence of the cutting process on the stress of the fabric is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mask machines, in particular to an edge trimming and shaping mechanism for mask machines. Background Art

[0002] As a sanitary protection product, masks usually contain multiple layers of fabrics, and masks are worn on the face. The smoothness of the edge of the mask directly affects the user experience.

[0003] The existing mask machine uses one-side dragging and one-time feeding, and then a trimming mechanism is designed in the middle to cut out the shape of the mask. Since the mask contains multiple layers of fabric, there are gaps inside the fabric that has not been fully stretched, pressed, and flattened, and burrs are easily generated on the edges after cutting, affecting the user experience of the mask. The existing mask machine only performs stretching and pressing in one direction, and the fitting effect between the multiple layers of fabric is poor; at the same time, dragging in one direction will change the stress condition of the cut fabric, causing the cut fabric to deform, affecting the internal fit of the uncut fabric. Utility Model Content

[0004] The purpose of the utility model is to provide a trimming and shaping mechanism for a mask machine, which can stretch and press fabrics from two directions, improve the fitting effect between multiple layers of fabrics, and reduce the influence of the cutting process on the stress of the fabrics.

[0005] The utility model provides a trimming and shaping mechanism for a mask machine, comprising:

[0006] A stretching conveyor assembly, the stretching conveyor assembly comprising a first conveyor belt and a second conveyor belt, the first conveyor belt and the second conveyor belt are in contact with each other and run synchronously, the first conveyor belt is provided with a stretching protrusion, the stretching protrusion runs through the entire length of the first conveyor belt along the outer surface of the first conveyor belt, the second conveyor belt is provided with a stretching recess having the same shape as the stretching protrusion, the stretching protrusion on the contact surface of the first conveyor belt and the second conveyor belt is embedded in the stretching recess;

[0007] A cutting assembly is clamped between the two stretching conveyor assemblies, and the mask material passes through the cutting assembly under the clamping of the first conveyor belt and the second conveyor belt.

[0008] Preferably, the stretching protrusion comprises an arc-shaped protrusion structure.

[0009] Preferably, the stretching protrusion comprises an angular protrusion structure.

[0010] Preferably, the stretching protrusion includes more than two protrusion structures.

[0011] Preferably, the first conveyor belt further comprises an anti-slip strip, which is integrally formed on the outer surface of the first conveyor belt, and the direction of the anti-slip strip is perpendicular to the direction of the stretching protrusion.

[0012] Preferably, the stretching conveyor assembly further comprises a stop bar, the number of the stop bars is 2, two of the stop bars are respectively fixedly connected to the first conveyor belt and the second conveyor belt, and the two stop bars are respectively located on the outer surfaces of the first conveyor belt and the second conveyor belt away from the edge of the cutting assembly.

[0013] Preferably, the cutting assembly comprises two cutting rollers, the number of the cutting rollers is 2, and the cutting rollers are arranged close to each other up and down, and the cutting rollers are provided with cutting blades, and the cutting blades of the upper and lower cutting rollers are closely fitted to each other.

[0014] Preferably, the cutting assembly further comprises a heat pressing strip, which is fixedly connected to the cutting roller and is located at the root of the inner contour of the cutting blade.

[0015] Preferably, the trimming and shaping mechanism for the mask machine further includes an auxiliary stretching assembly, which includes a first driven wheel and a second driven wheel, and the mask material obliquely detours through the first driven wheel and the second driven wheel to enter the stretching transmission assembly.

[0016] Preferably, the stretching assembly comprises a limiting plate, which is fixedly connected to both ends of the first driven wheel and the second driven wheel, and the size of the limiting plate is larger than the diameter of the first driven wheel and the second driven wheel.

[0017] The technical solution of the utility model drags the fabric into the first conveyor belt and the second conveyor belt which run synchronously against each other. The dragging force will cause the fabric to be stretched in one direction, and the stretching conveying component will fix the fabric in a stretched state. At the same time, after the fabric enters the stretching conveying component, the coupling of the stretching protrusion and the stretching depression will cause the fabric to move toward the coupling point, producing a stretching effect on the fabric in another direction, thereby achieving stretching of the fabric in two directions, improving the fitting effect between multiple layers of fabric, and reducing the influence of the cutting process on the force of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an axonometric diagram of a trimming and shaping mechanism for a mask machine of the utility model;

[0020] Figure 2 for Figure 1 Axonometric view of the stretching transmission component in the trimming and shaping mechanism for the middle mask machine;

[0021] Figure 3 for Figure 1 Axonometric view of the first conveyor belt in the trimming and shaping mechanism for the middle mask machine;

[0022] Figure 4 for Figure 1 Axonometric drawing of the cutting components in the trimming and shaping mechanism for the middle mask machine;

[0023] Figure 5 for Figure 1 Axonometric view of the auxiliary stretching component in the trimming and shaping mechanism for a medium-sized mask machine.

[0024] Description of reference numerals:

[0025] 1. Stretch conveying assembly; 11. First conveyor belt; 111. Stretch protrusion; 111a. Arc-shaped protrusion structure; 111b. Angular protrusion structure; 112. Anti-slip strip; 12. Second conveyor belt; 121. Stretch depression; 13. Baffle bar; 2. Cutting assembly; 21. Cutting roller; 22. Hot pressing strip; 3. Auxiliary stretching assembly; 31. First driven wheel; 32. Second driven wheel; 33. Limiting plate. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Combination Figures 1 to 5 As shown, the utility model provides a trimming and shaping mechanism for a mask machine, which includes a stretching and conveying component 1 and a cutting component 2.

[0030] Combination Figures 1 to 5 As shown, the stretching transmission component 1 includes a first conveyor belt 11 and a second conveyor belt 12, which are close to each other and run synchronously, and the first conveyor belt 11 is provided with a stretching protrusion 111, and the stretching protrusion 111 runs through the entire length of the first conveyor belt 11 along the outer surface of the first conveyor belt 11, and the second conveyor belt 12 is provided with a stretching recess 121 with the same shape as the stretching protrusion 111, and the stretching protrusion 111 on the abutting surface of the first conveyor belt 11 and the second conveyor belt 12 is embedded in the stretching recess 121; the cutting component 2 is clamped between the two stretching transmission components 1, and the mask material passes through the cutting component 2 under the clamping of the first conveyor belt 11 and the second conveyor belt 12.

[0031] In this embodiment, the fabric is dragged into the first conveyor belt 11 and the second conveyor belt 12 which are synchronously operated and pressed against each other. The dragging force will cause the fabric to be stretched in one direction, and the stretching conveyor component 1 will fix the fabric in a stretched state. After the fabric enters the stretching conveyor component 1, the coupling of the stretching protrusion 111 and the stretching recess 121 will cause the fabric to move toward the coupling point, producing a stretching effect on the fabric in another direction, thereby stretching the fabric in two directions, improving the fitting effect between multiple layers of fabric, and reducing the influence of the cutting process on the force of the fabric.

[0032] In some embodiments, in combination Figure 1 , 2 As shown, the stretching protrusion 111 includes an arc-shaped protrusion structure 111a. The contact surface between the arc-shaped protrusion structure 111a and the fabric is relatively smooth, which is conducive to the sliding of the fabric.

[0033] In some embodiments, in combination Figure 1 , 2 As shown, the stretching protrusion 111 includes an angular protrusion structure 111b. The contact surface between the angular protrusion structure 111b and the fabric has an angular shape, which has a better positioning effect on the fabric and is conducive to ensuring the stretching effect.

[0034] In some embodiments, in combination Figure 1 , 2 As shown, the stretching protrusion 111 includes more than two protrusion structures, where the protrusion structure can be the above-mentioned arc-shaped protrusion structure 111a, the angular protrusion structure 111b or protrusions of other shapes, and the multiple protrusion structures can be different or the same protrusion structures. The increase in the number of protrusion structures is most intuitively manifested as a larger stretching distance, and the multiple protrusion structures can better fix the two sides of the fabric to ensure the stretching effect of the fabric.

[0035] In some embodiments, in combination Figure 3 As shown, the first conveyor belt 11 also includes an anti-slip strip 112, which is integrally formed on the outer surface of the first conveyor belt 11, and the direction of the anti-slip strip 112 is perpendicular to the direction of the stretching protrusion 111. The anti-slip strip 112 can increase the fixing effect of the fabric during the dragging process of the fabric, and effectively avoid feeding problems caused by sliding.

[0036] In some embodiments, in combination Figure 3 As shown, the stretching transmission component 1 also includes a stop bar 13, the number of the stop bars 13 is 2, and the two stop bars 13 are respectively fixedly connected to the first conveyor belt 11 and the second conveyor belt 12, and the two stop bars 13 are respectively located on the outer surfaces of the first conveyor belt 11 and the second conveyor belt 12 away from the edge of the cutting component 2, and the stop bar 13 can limit the position of the fabric. When the fabric enters the stretching transmission component 1 for the first time, an entry angle error will inevitably occur. As the running time increases, this angle error will cause the deviation between the position of the fabric and the expected position to become larger and larger. The establishment of the stop bar 13 can stop the fabric at the expected position when the position of the fabric deviates.

[0037] In some embodiments, in combination Figure 4 As shown, the cutting assembly 2 includes a cutting roller 21, the number of the cutting rollers 21 is 2, and the cutting rollers 21 are distributed close to each other up and down, and a cutting blade is provided on the cutting roller 21. The cutting blades of the upper and lower cutting rollers 21 fit closely to each other. The fabric is cut by the cutting rollers 21 designed up and down, and the cutting task can be completed in the process of continuous movement of the fabric. The movement continuity of the mechanism is better, which is conducive to improving production efficiency.

[0038] In some embodiments, in combination Figure 4 As shown, the cutting assembly 2 also includes a heat pressing strip 22, which is fixedly connected to the cutting roller 21, and the heat pressing strip 22 is located at the root of the inner contour of the cutting blade, so that when the cutting blade is cutting, the heat pressing strip 22 hot-presses and fixes the fabric to avoid misalignment of the cut fabric, which is conducive to aligning the edges of the multi-layer fabric and ensuring the smoothness of the edge of the mask.

[0039] In some embodiments, in combination Figure 1 , 5 As shown, the trimming and shaping mechanism for the mask machine also includes an auxiliary stretching component 3, which includes a first driven wheel 31 and a second driven wheel 32. The mask material obliquely detours through the first driven wheel 31 and the second driven wheel 32 to enter the stretching transmission component 1. When the fabric passes through the auxiliary stretching component 3, it will be subject to a certain resistance. When the force applied to the fabric exceeds a certain value, the first driven wheel 31 and the second driven wheel 32 rotate under the drive of the fabric. The fabric will smoothly enter the stretching transmission component 1 only after it is fully stretched, which is beneficial to ensure the stretching effect of the fabric.

[0040] In some embodiments, in combination Figure 5 As shown, the stretching assembly 3 includes a limit plate 33, which is fixedly connected to both ends of the first driven wheel 31 and the second driven wheel 32, and the size of the limit plate 33 is larger than the diameter of the first driven wheel 31 and the second driven wheel 32. Since the first driven wheel 31 and the second driven wheel 32 cannot actively move and control the conveying of the fabric, the fabric is prone to deviation, and the limit plate 33 can play a positioning role for the fabric.

[0041] Working process: the fabric obliquely detours through the auxiliary stretching component 3 and enters the stretching transmission component 1. The first conveyor belt 11 and the second conveyor belt 12 clamp the fabric and apply a stretching force to cause the fabric to enter the stretching transmission component 1. During this period, the stretching force will cause the fabric to be fully stretched in one direction. At the same time, the fabric enters the stretching transmission component 1 in a stretched state and is fixed in the stretched state.

[0042] After the fabric enters the stretching transmission component 1, due to the coupling of the stretching protrusion 111 and the stretching recess 121, the fabric at the coupling position will be deformed and pull the nearby fabric to move toward the coupling position. The stretching transmission components 1 on both sides of the fabric will cause the fabric to be stretched in another direction, thereby achieving stretching of the fabric in two directions.

[0043] At the same time, the first conveyor belt 11 and the second conveyor belt 12 have a larger area for fixing the fabric, and each section of the fabric is provided with stretching force by different positions of the stretching conveying component 1. The fabric does not need to transmit stretching force after being cut by the cutting component 2. The shape change of the fabric caused by the cutting process has no effect on the stretching force on the uncut section of the fabric.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A trimming and shaping mechanism for a mask machine, characterized in that: include: A stretching conveyor assembly (1), the stretching conveyor assembly (1) comprising a first conveyor belt (11) and a second conveyor belt (12), the first conveyor belt (11) and the second conveyor belt (12) being in contact with each other and running synchronously, the first conveyor belt (11) being provided with a stretching protrusion (111), the stretching protrusion (111) running through the entire length of the first conveyor belt (11) along the outer surface of the first conveyor belt (11), the second conveyor belt (12) being provided with a stretching recess (121) having the same shape as the stretching protrusion (111), the stretching protrusion (111) on the contact surface between the first conveyor belt (11) and the second conveyor belt (12) being embedded in the stretching recess (121); A cutting assembly (2), wherein the cutting assembly (2) is sandwiched between the two stretching conveying assemblies (1), and the mask material passes through the cutting assembly (2) under the clamping of the first conveyor belt (11) and the second conveyor belt (12).

2. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The stretching protrusion (111) comprises an arc-shaped protrusion structure (111a).

3. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The stretching protrusion (111) comprises an angular protrusion structure (111b).

4. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The stretching protrusion (111) includes more than two protrusion structures.

5. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The first conveyor belt (11) further comprises an anti-slip strip (112), wherein the anti-slip strip (112) is integrally formed on the outer surface of the first conveyor belt (11), and the direction of the anti-slip strip (112) is perpendicular to the direction of the stretching protrusion (111).

6. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The stretching conveying assembly (1) further comprises a stop bar (13), wherein the number of the stop bars (13) is two, and the two stop bars (13) are respectively fixedly connected to the first conveying belt (11) and the second conveying belt (12), and the two stop bars (13) are respectively located on the outer surfaces of the first conveying belt (11) and the second conveying belt (12) away from the edge of the cutting assembly (2).

7. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: The cutting assembly (2) comprises a cutting roller (21), the number of the cutting rollers (21) is 2, and the cutting rollers (21) are arranged close to each other up and down, and the cutting rollers (21) are provided with cutting blades, and the cutting blades of the upper and lower cutting rollers (21) are closely fitted to each other.

8. The edge trimming and shaping mechanism for a mask machine according to claim 7, characterized in that: The cutting assembly (2) further comprises a hot pressing strip (22), wherein the hot pressing strip (22) is fixedly connected to the cutting roller (21), and the hot pressing strip (22) is located at the root of the inner contour of the cutting blade.

9. The edge trimming and shaping mechanism for a mask machine according to claim 1, characterized in that: It also comprises an auxiliary stretching assembly (3), wherein the auxiliary stretching assembly (3) comprises a first driven wheel (31) and a second driven wheel (32), and the mask material obliquely passes through the first driven wheel (31) and the second driven wheel (32) and enters the stretching transmission assembly (1).

10. The edge trimming and shaping mechanism for a mask machine according to claim 9, characterized in that: The stretching assembly (3) comprises a limiting plate (33), the limiting plate (33) being fixedly connected to both ends of the first driven wheel (31) and the second driven wheel (32), and the size of the limiting plate (33) is larger than the diameter size of the first driven wheel (31) and the second driven wheel (32).

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