A mesh hot-melt slitting process and slitting equipment

Abstract

The present invention discloses a mesh hot-melt slitting process and slitting equipment. The slitting equipment includes a slitting device, a hot-melt device, a grinding device and a cleaning device arranged in a line and arranged in sequence. The slitting process includes the following steps: the mesh material roll is unwound, and the mesh moves forward in a horizontal posture; the annular cutter is arranged above the mesh, and rotates at a uniform speed to complete the slitting of the mesh to the required width; when the slitting is completed and moves forward in a horizontal posture, the edge of the mesh contacts the heating plate, and the edge of the wire drawing part is sintered; the sintered mesh continues to move forward in a horizontal posture, and the sintered part of the edge of the mesh is evenly ground; the ground mesh continues to move forward in a horizontal posture and is cleaned by passing through a cleaning device. The present invention adopts the process steps of slitting-hot-melt cutting-melt grinding to eliminate the filaments and wire drawing produced by slitting, effectively avoiding contamination of the material surface.

Description

Technical Field

[0001] The invention belongs to the technical field of mesh die-cutting, and relates to a mesh hot-melt slitting process and slitting equipment. Background Art

[0002] The mesh material is made of chemical fiber such as nylon, and is woven into a mesh by multiple yarns. After the material is cut normally, the edges of the cuts will be broken and the scattered small wire diameters will be contaminated to the surface of the material, resulting in poor plugging performance after the material is processed.

[0003] The invention patent with application publication number "CN 107190496 A" discloses a hot-melt trimming and slitting process and device for mesh. The trimming and slitting by a hot-melt knife can avoid the problem of filaments and thread pulling at the edge of the mesh after cold knife trimming and slitting in the past.

[0004] However, heat-melting the mesh at the same time as trimming or slitting may cause the mesh edges to tear due to separation, resulting in uneven edges. These uneven edges are difficult to grind smooth even with a grinding process. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a hot melt slitting process and slitting equipment for improving the smoothness of mesh cutting edges.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0007] A mesh hot-melt slitting process comprises the following steps:

[0008] S1, the mesh material roll is unwound and the mesh moves forward in a horizontal posture; the circular cutter is set above the mesh and rotates at a constant speed to cut the mesh into the required width;

[0009] S2, when the slit mesh moves forward in a horizontal posture, the edges of the mesh come into contact with the heating plates set on both sides of the mesh, and the edge wire drawing parts are fused;

[0010] S3, the mesh that has been sintered continues to move forward in a horizontal posture, and the edges of the mesh come into contact with the grinding devices set on both sides of the mesh, and the sintered parts of the edges are ground evenly;

[0011] S4, the ground mesh continues to move forward in a horizontal posture and is cleaned by a cleaning device.

[0012] In order to solve the above technical problems, another technical solution adopted by the present invention is as follows:

[0013] A mesh hot-melt slitting device comprises a slitting device, a hot-melt device, a grinding device and a cleaning device arranged in a line and in sequence; the slitting device comprises a roller shaft, on which one or more annular cutters are provided; the hot-melt device comprises a support plate and two heating plates arranged on the top of the support plate, the inner sides of the heating plates being heating surfaces; the grinding device comprises grinding assemblies arranged on both sides of the mesh, the grinding assemblies consisting of an upper grinding plate and a lower grinding plate, the mesh passes between the upper grinding plate and the lower grinding plate, and the top and bottom of the edge are in contact with the upper grinding plate and the lower grinding plate respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The process steps of slitting - hot-melt cutting - fusion grinding are used to eliminate the filaments and wire drawing caused by slitting, effectively avoiding the contamination of the material surface, ensuring the thorough dust removal of the mesh material before entering the clean room for processing, ensuring that the product has no blockage defects, improving work efficiency and improving product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0017] Figure 1 Schematic diagram of the mesh hot-melt slitting equipment in Example 1;

[0018] Figure 2 Schematic diagram of the hot melt device in Example 1;

[0019] Figure 3 is a schematic diagram of the grinding device in Example 1;

[0020] Figure 4 is a schematic diagram of the cleaning device in Example 1;

[0021] Figure 5 is a schematic diagram of another cleaning device in Example 1;

[0022] Figure 6 Schematic diagram of hot-melt slitting of mesh yarn in Example 2;

[0023] Figure 7 Schematic diagram of hot-melt slitting of mesh in Example 3. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.

[0025] Example 1

[0026] Figure 1 The figure shows a mesh hot melt slitting device, which includes a slitting device 10, a hot melt device 20, a grinding device 30 and a cleaning device 40 arranged in a line and arranged in sequence. The process steps for slitting mesh using this device are as follows:

[0027] S1, the mesh material roll is unwound and the mesh moves forward in a horizontal posture; the circular cutter is set above the mesh and rotates at a constant speed to cut the mesh into the required width;

[0028] S2, when the slit mesh moves forward in a horizontal posture, the mesh edge contacts the heating plates provided on both sides of the mesh in the hot melting device 20, and the edge of the mesh is fused;

[0029] S3, the mesh that has been sintered continues to move forward in a horizontal posture, and the edges of the mesh come into contact with the grinding devices 30 provided on both sides of the mesh, and the sintered portions of the edges are ground evenly;

[0030] S4, the ground mesh continues to move forward in a horizontal posture and passes through the cleaning device 40 to be cleaned.

[0031] The process steps of slitting - hot-melt cutting - fusion grinding are adopted to eliminate the filaments and filaments produced by slitting, effectively avoiding the contamination of the material surface and ensuring the thorough dust removal of the mesh material before entering the clean room for processing.

[0032] See also Figure 1 The slitting device includes a roller shaft, on which a group of annular cutters are provided. This group of annular cutters can cut off both sides of the mesh, leaving the mesh of the required width to enter the hot melt device 20.

[0033] See also Figure 2 The hot melt device 20 includes a support plate 21 and two heating plates 22 arranged on the top of the support plate. The heating plates are embedded with heating wires, and the inner side is a heating surface. The side of the mesh is in contact with the heating surface to melt the broken wires.

[0034] See also Figure 3 The grinding device 30 includes grinding assemblies positioned on either side of the mesh. These assemblies consist of an upper grinding plate 31 and a lower grinding plate 32. The mesh passes between the upper and lower grinding plates, where the top and bottom edges of the mesh come into contact with the upper and lower grinding plates, respectively, to grind the sintered material. Spacers 33 are positioned between the upper and lower grinding plates, and the thickness of the spacers can be adjusted to adjust the spacing between the two plates.

[0035] See also Figure 4The cleaning device 40 includes a water tank 41 and an ultrasonic vibrator 42. The ultrasonic vibrator is located at the bottom of the water tank. A pressure roller 43 is located within the water tank. The mesh passes under the pressure roller and is completely submerged in water. A drying device can also be provided on the side of the cleaning device 40 opposite the grinding device 30 to dry the mesh before rewinding it.

[0036] Waterproof and oil-proof mesh materials cannot be cleaned by ultrasonic cleaning and can only be cleaned by vacuum adsorption. Figure 5 The cleaning device 40 includes a cleaning box 44 and a negative pressure suction head 45. Mesh holes are provided on the front and back sides of the cleaning box, and the negative pressure suction head is provided on the top of the cleaning box.

[0037] After the mesh material is cut in step S1, the amount of edge thread extraction is unstable, which may affect the size of subsequent sintering. Therefore, in this embodiment, a mesh dust removal device is provided between step S1 and step S2 to clean the mesh by vacuum adsorption.

[0038] Example 2

[0039] The difference between this embodiment and the first embodiment is that the mesh needs to be cut into multiple strips.

[0040] The mesh material is cut into multiple strips in step S1, and the spacing between adjacent meshes cannot meet the installation requirements of the hot melt device 20 and the grinding device 30. Moreover, the mesh is a woven structure, and lateral side pulling may cause the mesh of the mesh to deform.

[0041] See also Figure 6 In this embodiment, rollers 1 50 and 2 60 are staggered between the slitting device 10 and the hot melt device 20. Roller 1 is lower than the slitting device 10, and roller 2 is lower than roller 1. After slitting, one of the two adjacent meshes continues to move forward in a horizontal position, while the other mesh tilts downward and wraps around roller 1, then meanders forward under roller 2 before returning to a horizontal position and moving forward. This staggered arrangement of adjacent meshes provides space for the hot melt device 20 and the grinding device 30 without causing deformation of the mesh.

[0042] Example 3

[0043] This embodiment is based on the second embodiment.

[0044] When cutting multiple meshes, the upper and lower layers of mesh need to be provided with a hot-melt device 20 and a grinding device 30 respectively.

[0045] In the cleaning device 40, whether ultrasonic cleaning or vacuum adsorption cleaning is adopted, the manufacturing cost is relatively high, so in this embodiment, roller three 70 and roller four 80 are arranged between the cleaning device 40 and the grinding device 30. The upper mesh passes around these two rollers and is flush with the lower mesh before entering the cleaning device 40 together.

[0046] Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A mesh hot melt slitting process, characterized in that: The following steps are involved: S1, the mesh material roll is unwound and the mesh moves forward in a horizontal posture; the circular cutter is set above the mesh and rotates at a constant speed to cut the mesh into the required width; S2, when the slit mesh moves forward in a horizontal posture, the edges of the mesh come into contact with the heating plates set on both sides of the mesh, and the edge wire drawing parts are fused; S3, the mesh that has been sintered continues to move forward in a horizontal posture, and the edges of the mesh come into contact with the grinding devices set on both sides of the mesh, and the sintered parts of the edges are ground evenly; S4, the ground mesh continues to move forward in a horizontal posture and is cleaned by a cleaning device.

2. A mesh hot melt slitting process according to claim 1, characterized in that: In step S4, the cleaning device cleans the mesh by ultrasonic water washing.

3. The mesh hot melt slitting process according to claim 1, characterized in that: In step S4, the cleaning device cleans the mesh by vacuum adsorption.

4. The mesh hot melt slitting process according to claim 1, characterized in that: A mesh dust removal device is provided between step S1 and step S2, and the mesh dust removal device cleans the mesh by vacuum adsorption.

5. The mesh hot melt slitting process according to claim 1, characterized in that: The mesh is cut into multiple strips in step S1. One of the two adjacent meshes continues to move forward in a horizontal posture after the cutting is completed, and the other one tilts downward and then meanders into a horizontal posture and moves forward after the cutting is completed.

6. A mesh hot melt slitting device, characterized in that: It includes a slitting device, a hot melt device, a grinding device and a cleaning device arranged in a line and in sequence; the slitting device includes a roller, and the roller is provided with one or more annular cutters; the hot melt device includes a support plate and two heating plates arranged on the top of the support plate, and the inner side of the heating plate is a heating surface; the grinding device includes a grinding assembly arranged on both sides of the mesh, and the grinding assembly consists of an upper grinding plate and a lower grinding plate. The mesh passes between the upper grinding plate and the lower grinding plate, and the top and bottom of the edge are in contact with the upper grinding plate and the lower grinding plate respectively.

7. The mesh hot melt slitting equipment according to claim 6, characterized in that: The cleaning device includes a water tank and an ultrasonic vibrator, and the ultrasonic vibrator is arranged at the bottom of the water tank.

8. The mesh hot melt slitting equipment according to claim 6, characterized in that: The cleaning device comprises a cleaning box and a negative pressure suction head. Mesh holes are provided on the front and rear sides of the cleaning box, and the negative pressure suction head is provided on the top of the cleaning box.

9. The mesh hot melt slitting equipment according to claim 7, characterized in that: A drying device is provided on a side of the cleaning device opposite to the grinding device.

10. The mesh hot melt slitting equipment according to claim 6, characterized in that: A staggered roller 1 and a staggered roller 2 are provided between the slitting device and the hot melt device. The roller 1 is lower than the slitting device, and the roller 2 is lower than the roller 1.

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