Double-sided adhesive tape pasting device for acoustic waterproof sound transmission film
Through the improved double-sided gluing device, the symmetrical bending of the material strip is achieved by using the material strip folding jig and bending device, which solves the problems of low production capacity and poor positioning accuracy in traditional production, and improves the production efficiency and product quality of the waterproof and sound-permeable membrane.
Patent Information
- Application Number
- CN202422619497.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The production capacity of traditional double-sided adhesive waterproof and sound-permeable membranes is low and the positioning accuracy is poor, resulting in reduced product quality and increased costs.
A double-sided gluing device for acoustic waterproof and sound-permeable membrane is used, including a blanking device, a double-sided tape one-time punching device, a first laminating machine, a material strip folding device, a second laminating machine and a product shape punching device. The material strip folding jig and the bending device are used to achieve symmetrical bending of the material strip to ensure that the upper and lower layers of the adhesive backing holes are accurately aligned.
It improves production efficiency, reduces product size deviation and defect rate, reduces labor costs, and enhances product competitiveness.
Smart Images
Figure CN223314460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material strip folding jigs, in particular to a double-sided adhesive laminating device for acoustic waterproof and sound-permeable membranes. Background Art
[0002] The traditional double-sided adhesive waterproof sound-permeable membrane is generally made by manual assembly or circular knife pasting. However, this product mainly has adhesive on both sides of the product, and there is a non-adhesive through-hole in the middle of the adhesive. This through-hole is for sound transmission. The through-holes of the upper and lower layers of adhesive need to be aligned very accurately, otherwise it will affect the normal transmission of sound (cut off). Figure 1 This old process has low production capacity and large deviation in mounting, which leads to positional deviation of the upper and lower adhesive-backed through-holes, resulting in reduced product quality and increased costs. Summary of the Invention
[0003] The purpose of the present invention is to provide a double-sided adhesive bonding device for an acoustic waterproof and sound-permeable membrane, so as to solve at least one of the above-mentioned technical problems.
[0004] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:
[0005] A double-sided gluing device for an acoustic waterproof and sound-permeable membrane includes a blanking device, a double-sided tape one-time punching device, a first laminating machine, a material strip folding device, a second laminating machine, and a product shape punching device, which are arranged in sequence according to the gluing process. The first laminating machine is used to bond the mesh. The material strip folding device includes a material strip folding jig and a bending device. The bending device cooperates with the material strip folding jig to achieve symmetrical bending of the material strip.
[0006] Furthermore, a guide groove is provided on the material strip folding jig, and the guide groove is used to achieve symmetrical folding of the material strip. The guide groove is located at the material strip unloading position and corresponds to the tooth knife mark position of the material strip.
[0007] Furthermore, the bending device includes a bending wheel fixing rod, one end of which is mounted on the bracket, and the other end of which is mounted with a bending wheel, and the bending wheel is located on one side of the inner concave surface of the guide groove.
[0008] Furthermore, a serrated knife mark is provided in the middle of the material strip, and the serrated knife mark is provided along its length direction. During the bending process, the bending wheel is pressed on the serrated knife mark position in the middle of the material strip, and the serrated knife mark of the material strip is aligned with the guide groove of the material strip folding jig and then symmetrically bent.
[0009] Furthermore, the cross-section of the guide groove is V-shaped, and the shape of the outer edge of the bending wheel matches the shape and size of the cross-section of the guide groove.
[0010] Furthermore, the material strip folding jig is V-shaped, and its angle is 30-60°.
[0011] Furthermore, the width of the single-sided panel in the material strip folding jig is greater than the width of the material strip after symmetrical folding.
[0012] Furthermore, the distance between the outer edge of the bending wheel and the guide groove is at least 2 mm greater than the total thickness of the material strip.
[0013] The unloading device in the utility model includes a double-sided tape unloading device, a double-sided tape self-contained paper unloading device and a bottom release film material strip unloading device. The material strip is pulled by the driving wheel of the laminating and laminating machine. The release film is set on the lower surface of the double-sided tape, and the double-sided tape self-contained paper is set on the upper surface. After laminating, the double-sided tape is punched once. With the serrated knife mark as a reference, the punching positions on both sides of the serrated knife mark are arranged axially symmetrically along the serrated knife mark. After the double-sided tape is punched once, the outer frame and cover film waste are discharged, and then the mesh is covered by the first laminating mechanism. When passing through the material strip folding device, the bending wheel presses the serrated knife mark position in the middle of the material strip to stick it to the material strip folding jig, thereby The material strip is symmetrically bent and then passes through the second laminating machine and the shape punching device in sequence. Compared with the existing process, the two accessories AB are punched out separately, and then the two accessories are manually assembled into shape using an assembly jig, and then the shape is punched out. It is affected by the tolerance of the jig itself and the fitting tolerance, resulting in large product size deviation and high defective rate. In addition, the manual assembly capacity is low. In the utility model, the material strip is punched and formed directly on the machine at one time, and the material strip is flipped and folded by a special material strip folding jig, and is pasted and formed at one time, reducing the fitting size deviation and low production capacity caused by manual and jig reasons.
[0014] Beneficial effects:
[0015] Compared to the existing process, which involves punching out two parts A and B separately, then manually assembling them into shape using an assembly jig, and then punching out the shape, the jig's own tolerances and fit tolerances affect the product size deviation, resulting in a high defect rate. Furthermore, manual assembly has low productivity. The present invention performs one-time punching and shaping directly on the machine, and uses a special strip folding jig to flip and fold the strip, allowing for one-time alignment. This reduces the fit size deviation and low productivity caused by manual work and jigs, and effectively solves the industry's problem of gluing and alignment for double-sided adhesive-coated sound-permeable membranes and mesh products, saving labor costs and effectively improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The figure is a process flow chart for gluing existing sound-permeable membranes.
[0017] Figure 2 This is a schematic structural diagram of the double-sided adhesive bonding device for the acoustic waterproof and sound-permeable membrane in the present invention.
[0018] Figure 3 It is a structural schematic diagram of the material strip bending device in the present utility model.
[0019] Figure 4 This is a process flow chart for double-sided gluing of acoustic waterproof and sound-permeable membranes in the present invention.
[0020] In the figure: 1 material strip folding jig, 2 guide groove, 3 bending wheel, 4 bending wheel fixing rod, 5 tooth knife mark, 6 material strip. DETAILED DESCRIPTION
[0021] The present invention will now be described in further detail with reference to specific embodiments. The following embodiments will enable those skilled in the art to more fully understand the present invention, but these embodiments are not intended to limit the scope of protection of the present invention. The "one embodiment" or "embodiment" referred to herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" that appears in various places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0022] See also Figures 2 to 4 The double-sided gluing device for acoustic waterproof and sound-permeable membrane in the utility model includes a blanking device, a double-sided tape one-time punching device, a first laminating laminating machine, a material strip 6 folding device, a second laminating laminating machine, and a product shape punching device arranged in sequence according to the gluing process. The first laminating laminating machine is used to laminate the mesh. The material strip 6 folding device includes a material strip folding jig 1 and a bending device. The bending device cooperates with the material strip folding jig 1 to achieve symmetrical bending of the material strip 6.
[0023] As a preferred embodiment, the material strip folding jig 1 in this embodiment is provided with a guide groove 2, which is used to realize the symmetrical folding of the material strip 6. The guide groove 2 is located at the material feeding position of the material strip 6 and corresponds to the position of the tooth knife mark 5 of the material strip 6. The tooth knife mark 5 in the middle of the material strip 6 needs to be aligned with the middle bending position of the guide groove 2, and the bending wheel 3 is used to press on the tooth knife line position of the material strip 6. Under the action of tension, the material strip 6 is folded inward along the tooth knife line, and the material strip 6 is completed by passing through the subsequent laminating machine roller.
[0024] As a preferred embodiment, the bending device in this embodiment includes a bending wheel fixing rod 4, one end of the bending wheel fixing rod 4 is installed on the bracket, and the other end is installed with a bending wheel 3, which is located on the concave surface of the guide groove 2. The bending wheel 3 is used to realize the folding of the material strip 6. The bending wheel 3 adopts a flexible anti-static material to avoid damage to the material strip 6 during the bending process.
[0025] As a preferred embodiment, a serrated knife mark 5 is provided in the middle of the material strip 6 in this embodiment, and the serrated knife mark 5 is provided along its length direction. During the bending process, the bending wheel 3 is pressed on the serrated knife mark 5 in the middle of the material strip 6, and the serrated knife mark 5 of the material strip 6 is aligned with the guide groove 2 of the material strip folding jig 1 and then symmetrically bent. With this structural design, the bending efficiency and bending accuracy of the material strip 6 are higher.
[0026] As a preferred embodiment, the cross-sectional shape of the guide groove 2 in this embodiment is V-shaped, and the shape of the outer edge of the bending wheel 3 matches the cross-sectional shape and size of the guide groove 2. With this structural design, the bending efficiency and bending accuracy of the material strip 6 are higher.
[0027] As a preferred embodiment, the material strip folding jig 1 in this embodiment is V-shaped, and its angle is 30-60°, specifically 30°, 35°, 40°, 45°, 50°, 55°, or 60°.
[0028] As a preferred embodiment, the width of the single-sided panel of the material strip folding jig 1 in this embodiment is greater than the width of the material strip 6 after symmetrical folding. This structural design can reduce the damage rate of the material strip 6.
[0029] As a preferred embodiment, the distance between the outer edge of the bending wheel 3 and the guide groove in this embodiment is at least 2 mm larger than the total thickness of the strip, and specifically can be: 2 mm, 2.5 mm, 3 mm.
[0030] The key to the product quality of this utility model is that the product has adhesive backing on both the top and bottom surfaces, with a non-adhesive through-hole in the middle of the adhesive backing. This through-hole is used to transmit sound, and the through-holes of the upper and lower adhesive layers must be precisely aligned, otherwise the sound will be affected. This method can improve the relative positioning accuracy of the through-holes of the upper and lower double-sided adhesive layers from ±0.3mm to ±0.05mm, thus solving the problem of large deviation in the upper and lower positioning of the product.
[0031] After the double-sided tape is folded, it needs to pass through the roller of the second laminating machine again to closely adhere the gauze and the double-sided tape on both sides, so as to prevent the double-sided tape from separating from the gauze, resulting in defective products. Compared with the existing process, the two accessories AB are punched out separately, and then the two accessories are manually assembled into shape using an assembly jig, and then the shape is punched out again. This is affected by the tolerance of the jig itself and the fitting tolerance, resulting in large product size deviation and high defective rate. In addition, the manual assembly capacity is low. In the utility model, the two accessories are punched out and formed directly on the machine at one time, and the material strip 6 is flipped and folded by a special material strip folding jig 1, and the two accessories are pasted into shape at one time, reducing the fitting size deviation and low production capacity caused by manual and jig reasons.
[0032] With the above embodiments of the present invention as inspiration, and through the above description, relevant personnel in this field can make various changes and modifications without departing from the technical concept of this invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A double-sided adhesive bonding device for an acoustic waterproof and sound-permeable membrane, characterized by: It includes a blanking device, a double-sided tape one-time punching device, a first laminating machine, a material strip folding device, a second laminating machine, and a product shape punching device which are arranged in sequence according to the gluing process. The first laminating machine is used to laminate the mesh. The material strip folding device includes a material strip folding jig and a bending device. The bending device cooperates with the material strip folding jig to achieve symmetrical bending of the material strip.
2. A double-sided adhesive laminating device for an acoustic waterproof and sound-permeable membrane according to claim 1, characterized in that: The material strip folding jig is provided with a guide groove, which is used to achieve symmetrical folding of the material strip. The guide groove is located at the material strip feeding position and corresponds to the tooth knife mark position of the material strip.
3. The double-sided adhesive bonding device for an acoustic waterproof and sound-permeable membrane according to claim 2, characterized in that: The bending device comprises a bending wheel fixing rod, one end of which is mounted on the bracket, and the other end of which is mounted with a bending wheel, wherein the bending wheel is located on one side of the inner concave surface of the guide groove.
4. The double-sided adhesive laminating device for an acoustic waterproof and sound-permeable membrane according to claim 3, characterized in that: A serrated knife mark is provided in the middle of the material strip, and the serrated knife mark is provided along its length direction. During the bending process, the bending wheel is pressed on the serrated knife mark position in the middle of the material strip, and the serrated knife mark of the material strip is aligned with the guide groove of the material strip folding jig and then symmetrically bent.
5. The double-sided adhesive laminating device for an acoustic waterproof and sound-permeable membrane according to claim 3, characterized in that: The cross-section of the guide groove is V-shaped, and the shape of the outer edge of the bending wheel matches the cross-section of the guide groove.
6. The double-sided adhesive laminating device for an acoustic waterproof and sound-permeable membrane according to claim 2, characterized in that: The material strip folding jig is V-shaped, and its included angle is 30-60 degrees.
7. The double-sided adhesive bonding device for an acoustic waterproof and sound-permeable membrane according to claim 2, characterized in that: The width of the single-sided panel in the material strip folding jig is greater than the width of the material strip after symmetrical folding.
8. The double-sided adhesive laminating device for an acoustic waterproof and sound-permeable membrane according to claim 3, characterized in that: The distance between the outer edge of the bending wheel and the guide groove is at least 2 mm greater than the total thickness of the material strip.