Mushroom head Velcro

Abstract

The utility model discloses a mushroom-head Velcro, comprising a sheet-shaped substrate, a plurality of connection groups arranged side by side on the substrate in a front-to-back direction, each connection group comprising a plurality of T-shaped connectors arranged in a row, the side of the T-shaped connector opposite to other T-shaped connectors in the same connection group being a processing side, the side of the T-shaped connector opposite to other connection groups being a buckling side, the T-shaped connector comprising an elastic arm erected on the substrate and a buckling head located at the upper end of the elastic arm, the buckling side of the buckling head protruding from the buckling side of the elastic arm, and the processing side of the buckling head being flush with the processing side of the elastic arm. Compared with the existing mushroom-head Velcro on the market, this Velcro only needs to be cut after extrusion to be formed, the forming method is very simple, and is conducive to improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of Velcro, in particular to a mushroom-head type Velcro. Background Art

[0002] As a daily necessity, Velcro has a wide range of applications and is often used in many fields.

[0003] Traditional Velcro consists of two parts, a fleece side and a hook side. During the production process, the fleece side and the hook side must be produced separately. When it is used on specific products, the hook side and the fleece side must be used together. There is a risk of confusing the fleece side and the hook side when producing these products. At the same time, after this kind of Velcro has been used for a period of time, some of the hairs on the fleece side will break, resulting in reduced adhesion.

[0004] In order to solve the above problems, the patent with publication number CN117356801A discloses a Velcro with optional adhesion level. The Velcro adopts a base sheet with multiple fastening head-shaped connecting parts, so that any two identical Velcro pieces can be bonded to each other and have a long service life. However, this Velcro also has the following problems. Since each fastening head is independent of each other and the fastening heads are rotationally symmetrical patterns, it is very difficult to produce and form. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a mushroom-head Velcro that is easy to shape.

[0006] The utility model is realized by the following technical solutions:

[0007] A mushroom-head Velcro comprises a sheet-like substrate, and a plurality of connection groups arranged side by side on the substrate in a front-to-back direction, wherein each connection group comprises a plurality of T-shaped connectors arranged in a row at intervals, the side of the T-shaped connector opposite to other T-shaped connectors in the same connection group being a processing side, and the side of the T-shaped connector opposite to other connection groups being a buckling side, and the T-shaped connector comprises an elastic arm erected on the substrate and a buckling head located at the upper end of the elastic arm, the buckling side of the buckling head protruding from the buckling side of the elastic arm, and the processing side of the buckling head being flush with the processing side of the elastic arm.

[0008] As a further optimization of the above solution, all the connection groups are parallel and all the T-shaped connectors are arranged in an array.

[0009] As a further optimization scheme of the above scheme, the distance between the elastic arm and the elastic arm of the adjacent connection group is A, the distance between the buckle head and the buckle head of the adjacent connection group is B, the left and right width of the buckle head is W, and A, B, and W satisfy the following relationship B <W<A。

[0010] As a further optimization scheme of the above scheme, the ratio of W to B is 1.01 to 1.45.

[0011] As a further optimization scheme of the above scheme, the height of the connection group is H, and the ratio of H to A is 0.9 to 1.3.

[0012] As a further optimization of the above solution, both left and right sides of the snap-fit ​​head are provided with undercuts extending downwards.

[0013] As a further optimization of the above solution, the angle C between the inner side surface of the undercut and the elastic arm is 15° to 60°.

[0014] As a further optimization solution of the above solution, an anti-slip structure is provided on the substrate.

[0015] As a further optimization of the above solution, the anti-slip structure includes a limiting convex strip arranged at the front end and / or the rear end of the substrate, and the angle between the limiting convex strip and the connection group is 45° to 90°.

[0016] As a further optimization of the above solution, on the same connection group, split gaps are formed between adjacent T-shaped connectors, and the distance between adjacent split gaps is greater than the width of the split gaps.

[0017] As a further optimization of the above solution, the cross-section of the snap-fit ​​head is semicircular, triangular, trapezoidal, pentagonal, hexagonal, square or crescent-shaped.

[0018] A method for forming a mushroom head type Velcro is used to form the mushroom head type Velcro as described above, comprising the following steps:

[0019] S1, extrusion molding Velcro blank, the Velcro blank comprising a sheet-shaped substrate and a plurality of connecting strips arranged in parallel on the upper surface of the substrate, the connecting strips comprising vertical strips arranged on the upper surface of the substrate along the front-back direction and fastening strips arranged on the vertical strips;

[0020] S2. Cut the connecting strips so that a plurality of split notches are cut out on each connecting strip, cut the fastening strips into a plurality of fastening heads, and simultaneously cut a plurality of elastic arms out on the vertical strips.

[0021] As a further optimization of the above solution, after step S2 is completed, step S3 is implemented to heat-cut the front end and / or the rear end of the substrate so that the end of the substrate is formed with limiting convex strips arranged along the left and right directions.

[0022] The beneficial effects of the utility model are as follows: first, compared with the traditional Velcro that needs to distinguish between the fleece side and the hook side, the Velcro of the utility model is more convenient to use and is conducive to improving the service life. Compared with the mushroom head Velcro on the market, this Velcro only needs to be cut after extrusion to be formed, and the forming method is very simple, which is conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 It is a schematic diagram of the partial structure of the Velcro blank;

[0025] Figure 2 It is a three-dimensional diagram of embodiment 1 of the utility model;

[0026] Figure 3 yes Figure 2 A magnified view of part A;

[0027] Figure 4 This is a bonding principle diagram of Example 1 of the utility model;

[0028] Figure 5 It is a stereogram of Embodiment 2 of the present utility model;

[0029] Figure 6 It is a partial structural schematic diagram of Example 3 of the utility model;

[0030] Figure 7 It is a partial structural schematic diagram of embodiment 4 of the present utility model;

[0031] Figure 8 It is a partial structural schematic diagram of embodiment 5 of the present utility model. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0034] Example 1

[0035] Reference Figures 1 to 4 This embodiment proposes a mushroom-head Velcro, including a sheet-like substrate 1, and a plurality of connection groups arranged side by side on the substrate 1 along the front-to-back direction, each column of the connection groups including a plurality of T-shaped connectors 2 formed by cutting off the same strip-shaped component. On the same connection group, adjacent T-shaped connectors 2 have dividing notches 30 formed by cutting from top to bottom.

[0036] The side of the T-shaped connector 2 opposite to other T-shaped connectors 2 in the same connection group is the processing side. That is, the rear side of the T-shaped connector 2 located at the front end is the processing side, that is, the front side of the T-shaped connector 2 located at the rear end is the processing side, and the front and rear sides of the remaining T-shaped connectors 2 are both processing sides; the side of the T-shaped connector 2 opposite to other connection groups is the snap-fit ​​side, that is, the left side and right side of the T-shaped connector 2 are both snap-fit ​​sides. The T-shaped connector 2 includes an elastic arm 21 erected on the substrate 1 and a snap-fit ​​head 22 located at the upper end of the elastic arm 21, the snap-fit ​​side of the snap-fit ​​head 22 protrudes from the snap-fit ​​side of the elastic arm 21, and the processing side of the snap-fit ​​head 22 is flush with the processing side of the elastic arm 21.

[0037] Preferably, all the connection groups are parallel, and all the T-shaped connectors 2 are arranged in an array.

[0038] The method for forming the mushroom head type Velcro comprises the following steps:

[0039] S1, an extrusion-molded Velcro blank, the Velcro blank comprising a sheet-like substrate 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the substrate 1, the connecting strips 5 being the strip-shaped components mentioned above, the connecting strips 5 comprising vertical strips 51 arranged on the upper surface of the substrate 1 along the front-back direction and fastening strips 52 arranged on the vertical strips 51;

[0040] S2, cutting the connecting strips 5, so that each connecting strip 5 has a plurality of split notches 301 cut out, cutting the buckling strips 52 into a plurality of buckling heads 22, and cutting a plurality of elastic arms 21 on the vertical strips 51. At this time, the connecting strips 5 are cut into connecting groups, forming a plurality of T-shaped connectors 2.

[0041] During the cutting process, a saw blade with a specific thickness can be used to cut along a direction perpendicular to the connecting strip 5 or obliquely, cutting from one side of the magic tape to the other side, so that a split notch 301 with a specific width can be cut out on multiple connecting strips 5 at one time. In addition, methods of removing materials such as milling cutter cutting, hot cutter cutting, wire cutting, and laser cutting can also be used to cut out the above-mentioned split notch 301.

[0042] After the cutting is completed, a plurality of T-shaped connectors 2 are formed on the base material 1. Refer to Figure 4 , press two pieces of magic tape together, and the two pieces of magic tape can be buckled together through the T-shaped connectors 2 on the two pieces of magic tape. Compared with the traditional magic tape that needs to distinguish between the furry side and the hook side, this kind of magic tape is more convenient to use and is beneficial to improving the service life. Compared with the existing mushroom head type magic tape on the market, this kind of magic tape only needs to be cut after extrusion to form, and the forming method is very simple, which is beneficial to improving production efficiency.

[0043] In this embodiment, buckles 221 extending downward are provided on both the left and right sides of the buckling head 22.

[0044] Refer to Figure 4 , in order to ensure that the magic tapes can be stably adhered together, on the same connection group, the distance between adjacent split notches 301 is greater than the width of the split notch 301. The distance between the elastic arms 21 and the elastic arms 21 of the adjacent connection group is A, the distance between the buckling heads 22 and the buckling heads 22 of the adjacent connection group is B, and the left and right width of the buckling head 22 is W. The three values of A, B, and W satisfy the following relational expression B < W < A. Preferably, the ratio of W to B is 1.01 to 1.45, such as 1.05, 1.1, 1.3, 1.4. With such a design, the head of the T-shaped connector 2 can be buckled between the two elastic arms 21 of another magic tape, and the buckles 221 on the two magic tapes can be buckled together to prevent the two magic tapes from separating.

[0045] Furthermore, the height of the connection group is H, and the ratio of H to A is 0.9 to 1.3. Such as 0.9, 1.0, 1.1, 1.25. The included angle C between the inner side surface of the buckle 221 and the elastic arm 21 is 15° to 60°, such as 20°, 30°, 40°, 50°. With such a design of the buckle 221, the buckling force is moderate and it is convenient for forming.

[0046] Embodiment 2

[0047] Figure 5 Embodiment 2 of the present invention is shown. This embodiment has a similar structure to Embodiment 1, and the difference is that in this embodiment, an anti-slip structure is further provided on the base material 1.

[0048] Specifically, the anti-slip structure includes a limiting convex strip 4 disposed on the substrate 1 , and the angle between the limiting convex strip 4 and the elastic arm 21 is 45° to 90°, such as 60°, 75°, or 90°. Preferably, the limiting convex strip 4 is perpendicular to the elastic arm 21 .

[0049] The limiting convex strips 4 may be provided only at the front end of the substrate 1 , or only at the rear end of the substrate 1 , or both at the front end and the rear end of the substrate 1 .

[0050] The molding method of the mushroom head type Velcro of this embodiment is:

[0051] S1, an extrusion-molded Velcro blank, the Velcro blank comprising a sheet-shaped substrate 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the substrate 1, the connecting strips 5 comprising vertical strips 51 arranged on the upper surface of the substrate 1 along the front-back direction and fastening strips 52 arranged on the vertical strips 51;

[0052] S2, cutting the connecting strips 5 so that a plurality of splitting notches 301 are cut out on each connecting strip 5, cutting the buckling strips 52 into a plurality of buckling heads 22, and cutting a plurality of elastic arms 21 on the vertical strips 51;

[0053] S3, hot cutting is performed on the front end and / or the rear end of the substrate 1, so that the end of the substrate 1 is formed into limiting convex strips 4 arranged along the left-right direction.

[0054] The anti-slip structure allows the two Velcro strips to slide relative to each other along the length direction of the elastic arm 21 after being bonded together, i.e., the two strips are restricted from sliding relative to each other in the front-to-back direction. When the Velcro strips are attached to a wall or other vertical wall for use, the product attached to the wall can fall off the mounting surface.

[0055] Example 3

[0056] Figure 6 A schematic diagram of the partial structure of Example 3 of the utility model is shown. This example has a similar structure to Example 1, and the difference lies in the cross-sectional shape of the snap-fit ​​head 22. In this example, the cross-section of the snap-fit ​​head 22 is semicircular.

[0057] Example 4

[0058] Figure 7 A partial structural schematic diagram of the utility model embodiment 4 is shown. This embodiment has a similar structure to the embodiment 1, and the difference lies in the cross-sectional shape of the snap-fit ​​head 22. In this embodiment, the cross-section of the snap-fit ​​head 22 is an isosceles trapezoid.

[0059] Example 5

[0060] Figure 8A partial structural schematic diagram of the utility model embodiment 5 is shown. This embodiment has a similar structure to the embodiment 1, and the difference lies in the cross-sectional shape of the snap-fit ​​head 22. In this embodiment, the cross-section of the snap-fit ​​head 22 is a pentagon.

[0061] Of course, in addition to the shapes shown in the above embodiments, the cross-section of the snap-fit ​​head 22 may also adopt other shapes, such as triangle, hexagon, square, crescent, etc.

[0062] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mushroom head Velcro, characterized in that: The invention comprises a sheet-shaped substrate (1), and a plurality of connection groups arranged side by side on the substrate (1) and arranged in a front-to-back direction, wherein each connection group comprises a plurality of T-shaped connectors (2) arranged in a row at intervals, the side of the T-shaped connector (2) opposite to other T-shaped connectors (2) in the same connection group being a processing side, and the side of the T-shaped connector (2) opposite to other connection groups being a snap-fit ​​side, and the T-shaped connector (2) comprising an elastic arm (21) erected on the substrate (1) and a snap-fit ​​head (22) located at the upper end of the elastic arm (21), the snap-fit ​​side of the snap-fit ​​head (22) protruding from the snap-fit ​​side of the elastic arm (21), and the processing side of the snap-fit ​​head (22) being flush with the processing side of the elastic arm (21).

2. The mushroom head type Velcro according to claim 1, characterized in that: All the connection groups are parallel, and all the T-shaped connectors (2) are arranged in an array.

3. The mushroom head type Velcro according to claim 1, characterized in that: The distance between the elastic arm (21) and the elastic arm (21) of the adjacent connection group is A, the distance between the buckle head (22) and the buckle head (22) of the adjacent connection group is B, the left and right width of the buckle head (22) is W, and A, B, and W satisfy the following relationship B: <W<A。 4. The mushroom head type Velcro according to claim 3, characterized in that: The ratio of W to B is 1.01 to 1.

45.

5. The mushroom head type Velcro according to claim 3, characterized in that: The height of the connection group is H, and the ratio of H to A is 0.9 to 1.

3.

6. The mushroom head type Velcro according to claim 1, characterized in that: The left and right sides of the buckle head (22) are both provided with undercuts (221) extending downwards.

7. The mushroom head type Velcro according to claim 6, characterized in that: The included angle C between the inner side surface of the undercut (221) and the elastic arm (21) is 15° to 60°.

8. The mushroom head type Velcro according to claim 1, characterized in that: The substrate (1) is provided with an anti-slip structure.

9. The mushroom head type Velcro according to claim 8, characterized in that: The anti-slip structure comprises a limiting convex strip (4) arranged at the front end and / or the rear end of the substrate (1), and the angle between the limiting convex strip (4) and the connection group is 45° to 90°.

10. The mushroom head type Velcro according to claim 1, characterized in that: On the same connection group, a splitting notch (301) is formed between adjacent T-shaped connecting pieces (2), and the distance between adjacent splitting notches (301) is greater than the width of the splitting notch (301).

11. The mushroom head type Velcro according to claim 1, characterized in that: The cross section of the buckle head (22) is semicircular, triangular, trapezoidal, pentagonal, hexagonal, square or crescent-shaped.

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