CN110587504A

CN110587504A - Preparation method of polishing and grinding integrated wheel

Info

Publication number: CN110587504A
Application number: CN201911062877.2A
Authority: CN
Inventors: 谢泽
Original assignee: SICHUAN PROVINCE SANTAI COUNTY GURUI ENTERPRISE CO Ltd
Current assignee: SICHUAN PROVINCE SANTAI COUNTY GURUI ENTERPRISE CO Ltd
Priority date: 2019-03-11
Filing date: 2019-11-04
Publication date: 2019-12-20
Also published as: CN109759967A

Abstract

The invention provides a preparation method of a polishing and grinding integrated wheel, which is characterized in that a polishing and grinding integrated wheel is prepared by impregnating and gluing grid cloth, planting sand, pre-baking, laminating, cutting, pressurizing and curing; or the polishing and grinding integrated wheel is prepared by dipping, gluing, sand planting, pre-baking, glue compounding, winding, pressurizing, curing and slitting the mesh cloth; the invention provides a proper polishing cloth base material and provides a polishing and grinding integrated wheel manufactured by a corresponding manufacturing method, wherein the polishing and grinding integrated wheel can improve the grinding sharpness and the grinding efficiency, and has good heat dissipation and high elasticity.

Description

Preparation method of polishing and grinding integrated wheel

Technical Field

The invention relates to the technical field of grinding tools, in particular to a method for manufacturing a polishing and grinding integrated wheel.

Background

The polishing and grinding integrated wheel is used for grinding or polishing the surface of a tool or a coating, and the conventional polishing and grinding wheel usually adopts a sand cloth wheel, a nylon wheel, a bonded sand cloth wheel and the like; the abrasive cloth wheel cuts the formed abrasive cloth into blocks, then the abrasive cloth sheets are stacked on a tray glue applying position according to a certain rule and solidified to obtain the plane abrasive cloth wheel; in addition, the formed abrasive cloth blocks can be arranged in a specific auxiliary tool in a radial and tight manner, a through hole is reserved in the specific auxiliary tool, a round handle is inserted into the through hole, then a binder is added among the abrasive cloth sheets around the round handle for curing, and the auxiliary tool is taken down to obtain the abrasive cloth wheel with the handle; in the same way, the formed abrasive cloth sheets can be arranged on one end cover in a radial shape, then the other end cover is covered, and the bonding agent is added between the two end covers and the abrasive cloth sheets for curing, so that the thousand-blade wheel is manufactured. The nylon wheel is prepared by generally impregnating non-woven fabrics, overlapping and pressing the non-woven fabrics, and then curing the non-woven fabrics. And the emery cloth wheel is formed by overlapping and pressing a plurality of layers of cloth together, then cutting, fixing the cloth into a disc shape by using a thread rope, coating animal glue along the circumferential surface, sanding, repeating the steps to a proper size, and then curing to prepare the emery cloth wheel. However, the polishing and grinding wheel prepared by the manufacturing method in the prior art has the defects of insufficient grinding sharpness, poor adhesion and easy falling of grinding materials, thereby affecting the grinding efficiency. The polishing and grinding wheels with various structures have the problems of low grinding sharpness, difficult heat dissipation, poor rigidity and elasticity, difficult cutting arrangement and the like.

Disclosure of Invention

In order to solve the problems, the invention provides a proper polishing cloth substrate and a polishing and grinding integrated wheel manufactured by a corresponding manufacturing method, and the polishing and grinding integrated wheel can improve the grinding sharpness and the grinding efficiency, has good heat dissipation and is rich in elasticity.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

a preparation method of a polishing and grinding integrated wheel comprises the following steps:

the method comprises the following steps: dipping and gluing: dipping the mesh cloth in glue; step two: sand planting: sand planting is carried out on the mesh cloth subjected to the dipping and gluing in the first step, so that the grinding materials are attached to the mesh cloth;

step three: pre-baking: pre-baking the mesh cloth subjected to sand planting in the second step;

step four: compounding glue: coating glue on the mesh cloth pre-baked in the third step;

step five: laminating: overlapping a plurality of the gridding cloth subjected to glue compounding in the fourth step, and applying certain pressure to form to obtain a primary product of the polishing and grinding integrated wheel;

step six: cutting: cutting the primary product of the polishing and grinding integrated wheel obtained in the fifth step by using cutting equipment;

step seven: and (3) pressurizing and curing: and D, pressurizing and curing the primary product of the polishing and grinding integrated wheel cut in the step six by using curing equipment to obtain a finished product of the polishing and grinding integrated wheel.

step five: winding: winding a plurality of the grid cloth which is subjected to glue compounding in the fourth step into a cylinder, and applying certain pressure for forming to obtain a primary product of the polishing and grinding integrated wheel;

step six: and (3) pressurizing and curing: pressurizing and curing the primary product of the polishing and grinding integrated wheel wound in the fifth step by using curing equipment;

step seven: slitting: and cutting the primary product of the polishing and grinding integrated wheel subjected to pressure curing in the step six by using a cutting device to obtain a finished product of the polishing and grinding integrated wheel.

Preferably, the mesh cloth has a distinct and regular mesh.

Preferably, the meshes of the mesh cloth are aligned in the laminating process; or the meshes of the mesh cloth are staggered in the laminating process.

Preferably, the mesh holes of the mesh cloth are aligned in the winding process; or, the mesh holes of the mesh cloth are staggered in the winding process.

Preferably, the grid cloth is a woven cloth of one or more blended products of hemp fiber, cotton fiber, nylon fiber, paper fiber, glass fiber, basalt fiber, carbon fiber, polyester fiber, polyethylene fiber, magnesium chloride fiber, acrylic fiber, aromatic polyamide fiber, acetate fiber, viscose fiber, dog hair fiber, horse hair fiber, pig hair fiber and wool fiber.

Preferably, the abrasive is one or a mixture of natural or artificial abrasives.

Preferably, the glue is one or a mixture of natural or artificial synthetic resin.

Preferably, in the sand planting process of the second step, single double-sided sand planting is performed on the mesh cloth, so that the abrasive is attached to two side surfaces of the mesh cloth.

Preferably, a tool is added in the winding process of the step five.

Preferably, the tool is an iron wire.

The method comprises the steps of selecting grid cloth as a base material of the polishing and grinding integrated wheel, carrying out impregnation gluing, sand planting, pre-baking, carrying out glue laminating, laminating a plurality of grid cloth subjected to the treatment, laminating the grid cloth independently or adhering the laminated grid cloth to other auxiliary tools to manufacture the polishing and grinding integrated wheel, cutting, pressurizing and curing, and preparing a finished product of the polishing and grinding integrated wheel to obtain the laminated polishing and grinding integrated wheel. In addition, can also be cylindrical around rolling up a plurality of net cloth through processing, pressurization solidification afterwards, cut the back, obtain the integrative wheel finished product of polishing, obtain the integrative wheel of coiling type polishing, can add frock instrument and take out the frock after the solidification at the in-process of rolling up to can increase the quantity in terminal surface space, further increase grinding steel elasticity and arrange and cut efficiency. The iron wire can be selected for use to the frock instrument, and convenient for material selection, easy operation, and can reach corresponding effect.

The grid cloth is used as the base material of the polishing wheel, the grid cloth has obvious and regular meshes, and the polishing wheel made of the material has larger and more gaps, so that the heat dissipation performance is better in the grinding process, the probability of burning a workpiece is lower, meanwhile, the polishing wheel can bring certain rigidity and elasticity in the grinding process due to the gaps brought by the grid cloth, and the polishing wheel is more smoothly arranged and cut due to the obvious and regular meshes on the base material; meanwhile, the grid cloth is subjected to gluing, sand planting and glue coating treatment, so that the grinding sharpness of the side face of the grid cloth can be increased, and the grinding efficiency of the polishing and grinding wheel prepared by the grid cloth is improved under the condition that the grinding ratio is not greatly reduced. And simultaneously, because the meshes of the grid cloth are regular, the size of the gap of the polishing wheel can be artificially controlled in the laminating or winding process, the uniformity degree of the size of the gap is controlled, the size and uniformity degree of the gap of the polishing wheel determine the heat dissipation effect of the polishing wheel, and the grinding efficiency and quality are influenced, so that the grinding performance of the polishing wheel can be effectively improved by selecting the grid cloth with obvious and regular meshes as the base material of the polishing wheel. When the meshes of the plurality of layers of grid cloth are aligned positively in the laminating process or the winding process, the mesh gap can be maximized, the heat dissipation effect of the polishing wheel is further improved, and the polishing wheel is more smoothly arranged and cut; in addition, the grid cloth can not be aligned, namely, the grid holes of the grid cloth are staggered in the laminating process, and for the abrasive attached to any layer of grid cloth, the abrasive can be exposed (or extend into) the meshes of other grid cloth, so that more abrasive can be exposed in the gaps of the wheel body, and the grinding capacity of the polishing and grinding wheel can be improved.

The selected mesh fabric material can be woven fabric of one or more blended products of fibrilia, cotton fiber, nylon fiber, paper fiber, glass fiber, basalt fiber, carbon fiber, polyester fiber, polyethylene fiber, magnesium chloride fiber, acrylic fiber, aromatic polyamide fiber, acetate fiber, viscose fiber, dog hair fiber, horse hair fiber, pig hair fiber and wool fiber, and the materials have obvious and regular meshes. Meanwhile, the mesh fabric is generally woven fabric, and the tearing resistance effect of the woven fabric is much better than that of non-woven fabric, so that the grinding ratio is much higher, and the production cost is correspondingly reduced. In addition, the base material of the application does not recommend the glass fiber mesh cloth, because the glass fiber mesh cloth has serious dust hazard in the manufacturing process, the glass fiber powder can cause serious respiratory system diseases after being inhaled by human bodies; when the glass fiber mesh cloth is in use, the glass fiber mesh cloth is in contact with a human body, and allergic skin diseases such as skin itch, red swelling, erythema and the like are easily caused, but the glass fiber mesh cloth is adopted as a base material of the polishing wheel in the application and is also within the protection scope of the application.

The method is different from the traditional preparation method of the polishing and grinding wheel, the method comprises the steps of dipping and gluing the gridding cloth, planting sand, pre-baking, coating compound glue, overlapping a plurality of layers of gridding cloth or winding a plurality of layers of gridding cloth into a cylinder shape, applying certain pressure for forming, and respectively preparing a laminated polishing wheel and a winding polishing wheel, the method carries out independent treatment on each layer of gridding cloth, namely gluing, sanding, pre-baking and compound glue on each layer of gridding cloth, then laminating or winding the treated gridding cloth, thereby improving the grinding efficiency of each layer of gridding cloth and further improving the grinding efficiency of the whole polishing and grinding wheel, meanwhile, the gridding cloth is laminated or wound under the semi-cured state of the viscose glue on the gridding cloth, therefore, the bonding strength between the grid cloth is improved, the polishing wheel formed by laminating or winding is integrated, and the loss of the abrasive material in the polishing process of the polishing wheel can be reduced. The manufacturing method is simple, manual sewing is not needed, and a die can be added during laminating according to needs so as to prepare polishing wheels with various needs, such as a laminating-type laminating-pulling type grid cloth polishing wheel, a laminating-type grid cloth handle wheel, a laminating-type grid cloth multi-layer wheel, a laminating-type grid cloth (imitated) plane wheel, a wound grid cloth polishing wheel, a wound grid cloth handle wheel and a wound grid cloth (imitated) vane wheel. In addition, this application adopts the pressure of folding of the mode preparation to fold to throw and grinds integrative wheel and the coiling of the mode preparation through coiling to throw and grind integrative wheel, and inlayer density homogeneous even wheel body outer grid cloth damages, and inlayer grid cloth structure also can produce the grinding effect the same with the skin.

Drawings

FIG. 1 is a schematic view of a mesh fabric structure;

FIG. 2 is a schematic view of a polishing and grinding integrated wheel microstructure;

FIG. 3 is a schematic view of a structure of a laminated mesh cloth multi-layer wheel;

FIG. 4 is a side view of the multi-layered wheel of the laminated scrim;

FIG. 5 is a schematic view of a structure of a laminated and drawn type mesh cloth polishing and grinding wheel;

FIG. 6 is a side view of the laminated pull type scrim polishing wheel;

FIG. 7 is a schematic structural view of a tape handle wheel of the laminated mesh cloth;

FIG. 8 is a side view of a handle wheel for laminating mesh tapes;

FIG. 9 is a schematic view of a structure of a laminated mesh fabric (imitation) plane wheel;

FIG. 10 is a side view of a laminated scrim (mock) wheel;

FIG. 11 is a schematic view of a wound mesh fabric (simulated) spline structure;

FIG. 12 is a side view of a wound scrim (mock) wheel;

FIG. 13 is a schematic view of a pulley structure for winding a mesh fabric;

figure 14 is a side view of a winding scrim strap handle wheel;

FIG. 15 is a schematic view of a void in the wheel body;

FIG. 16 is a schematic view of a first double-sided sanding apparatus; the sand discharging device is positioned on the left side of the upper polar plate and used for reversely planting sand;

FIG. 17 is a schematic view of a first double-sided sanding apparatus; the sand discharging device is positioned on the right side of the upper polar plate and is used for planting sand in the same direction;

FIG. 18 is a schematic view of a second double-sided sanding apparatus; the double-sided sand planting equipment does not comprise a base plate and a conveying belt;

FIG. 19 is a schematic view of a second double-sided sand planting apparatus; wherein, the double-sided sand planting equipment comprises a base plate;

FIG. 20 is a schematic view of a second double-sided sanding apparatus; wherein, the double-sided sand planting equipment comprises a conveyer belt;

FIG. 21 is a schematic structural diagram of 3 upper plates; wherein, fig. 21a illustrates that the upper polar plate is a grid plate, fig. 21b illustrates that the upper polar plate is a bar grid plate, and fig. 21c illustrates that the upper polar plate is provided with through holes;

FIG. 22 is a side view of an abrasive impregnated scrim formed using a double-sided sanding apparatus;

FIG. 23 is a top view of an abrasive impregnated scrim formed using a double-sided sanding apparatus.

In the figure, 1-wheel body, 2-grid cloth, 3-abrasive material layer, 4-glue layer, 5-center hole, 6-through hole, 7-bamboo hat type insert base body, 8-handle rod, 9-tray, 10-tray groove, 11-through hole, 12-gap, 13-double-sided sand planting equipment, 14-conveying belt, 15-sand discharging device, 16-upper pole plate, 17-lower pole plate, 18-guide roller, 19-backing plate, 20-abrasive material, 21-abrasive material falling path, 22-grid cloth walking path and 23-mesh hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The glue used in the invention is a mixture of one or more of natural or artificial resin, such as animal glue, vegetable glue or phenolic resin, and the grinding material can be selected from natural or artificial resin, such as one or more of natural steel grit, natural corundum, artificial diamond, and the like. The grid cloth is a woven cloth of one or more blended products of fibrilia, cotton fiber, nylon fiber, paper fiber, glass fiber, basalt fiber, carbon fiber, polyester fiber, polyethylene fiber, magnesium chloride fiber, acrylic fiber, aromatic polyamide fiber, acetic acid fiber, viscose fiber, dog hair fiber, horse hair fiber, pig hair fiber and wool fiber. In the preparation of the samples described below, gravity sand-planting and electrostatic sand-planting can be used, which are well known to those skilled in the art and will not be described in detail herein. The preparation of the samples described below, the equipment and components used, such as baking equipment, coating equipment, curing equipment and slitting equipment, are known to the person skilled in the art and the working principle and process thereof will not be described in detail here.

Firstly, preparing a sample:

example 1

the method comprises the following steps: dipping and gluing: soaking the cotton latticed cloth in glue;

step two: sand planting: planting sand on the cotton grid cloth subjected to the dipping and gluing in the first step to enable the grinding materials to be attached to the cotton grid cloth;

step three: pre-baking: pre-baking the cotton mesh cloth subjected to sand planting in the second step;

step four: compounding glue: coating glue on the pre-baked cotton mesh cloth in the third step;

step five: laminating: overlapping a plurality of cotton mesh cloths which are subjected to glue compounding in the fourth step, and applying certain pressure to form to obtain a primary product of the polishing and grinding integrated wheel;

step seven: and (3) pressurizing and curing: and D, pressurizing and curing the primary product of the polishing and grinding integrated wheel cut in the step six by using curing equipment to obtain the polishing and grinding integrated wheel.

The polishing and grinding integrated wheel prepared in the embodiment is a laminated polishing and grinding wheel, as shown in fig. 1-10, the wheel body 1 of the polishing and grinding wheel comprises a plurality of layers of laminated gridding cloth 2, one side or two side surfaces of any gridding cloth 2 are provided with a mixture layer, the mixture layer comprises a glue layer 4 and a grinding material layer 3, and the middle part of the wheel body 1 is provided with a through hole 6. The polishing wheel has good heat dissipation and certain elasticity in the grinding process, and can improve the grinding efficiency.

In the laminated polishing wheel of the present embodiment, the meshes of each layer of the mesh cloth 2 and the meshes of the adjacent mesh cloths 2 are connected to form the gap 12 of the wheel body, and the abrasive is adhered in the gap 12, as shown in fig. 15. The meshes of each layer of the mesh cloth 2 form a gap 12 of the wheel body; the mesh holes of the adjacent mesh cloths 2 are communicated with each other to form a wheel body gap 12. The interior and the surface of the wheel body are provided with a gap 12. When the end face of the laminated polishing and grinding wheel is used for grinding operation, the gaps 12 formed by the communicated meshes of the adjacent grid cloth play a beneficial role, and form a grinding action similar to saw teeth; when the circumferential surface of the laminated polishing and grinding wheel is used for grinding operation, the gaps 12 formed by the meshes of each layer of mesh cloth play a beneficial role, and form a grinding action similar to saw teeth.

In this embodiment, the cotton-mesh cloth is selected to have distinct and regular meshes.

In this embodiment, the meshes of the laminated layers of mesh cloth 2 are positively aligned. Of course, the meshes of the laminated layers of the mesh cloth can be staggered.

In this embodiment, the abrasive layer 3 is partially exposed from the glue layer 4. It is of course also possible that the abrasive layer 3 is completely enclosed by the glue layer 4.

In the embodiment, in the laminating process, a hollow mold is adopted to punch a plurality of layers of cotton mesh cloth under certain pressure, and then the cotton mesh cloth is cut, pressed and cured, so that the laminated mesh cloth multi-layer wheel is formed. As shown in fig. 3 and 4.

In the embodiment, in the laminating process, a hollow bamboo hat type die is adopted to punch the middle parts of a plurality of layers of cotton mesh cloth under certain pressure, and then the cotton mesh cloth is cut, pressurized and cured, so that the laminated cymbal type mesh cloth polishing wheel is formed. As shown in fig. 5 and 6, the middle of the wheel body 1 of the laminated cymbal type grid cloth polishing wheel is further provided with a bamboo hat type insert base body 7, the bamboo hat type insert base body 7 is a convex structure formed by punching a plurality of layers of laminated grid cloth, and the through hole 6 in the middle of the wheel body 1 is arranged in the center of the bamboo hat type insert base body 7.

In the embodiment, in the laminating process, a hollow mold is adopted to stamp a plurality of layers of cotton mesh cloth under certain pressure, and then the cotton mesh cloth is cut, pressurized and cured, and a handle rod 8 (such as a round handle) is inserted into a through hole in the middle of the wheel body, so that the laminated mesh cloth belt handle wheel is formed. As shown in fig. 7 and 8.

In the embodiment, in the laminating process, a hollow mold is adopted to punch a plurality of layers of cotton mesh cloth under certain pressure, and then the cotton mesh cloth is cut, pressed and cured, and then bonded on the tray 9 to form the laminated mesh cloth (imitated) plane wheel. As shown in fig. 9 and 10, a tray 9 is bonded to one end surface of a wheel body 1 of the laminated mesh cloth (imitated) plane wheel, a tray groove 10 is arranged in the middle of the tray 9, and a central hole 5 is arranged in the center of the tray groove 10. The central hole 5 is basically coaxial with the through hole 6 of the wheel body; the tray 9 and the tray groove 10 are both circular.

Example 2

step five: winding: winding a plurality of cotton mesh fabrics which are compounded with the glue in the step four into a cylinder, and applying certain pressure for forming to obtain a primary product of the polishing and grinding integrated wheel;

The polishing and grinding integrated wheel prepared in the embodiment is a winding type polishing and grinding wheel, as shown in fig. 1, 2 and 11-14, the wheel body 1 of the polishing and grinding wheel comprises a plurality of layers of mesh cloth 2 wound into a cylindrical shape, one side or two sides of any one layer of the mesh cloth 2 are provided with a mixture layer, the mixture layer comprises a glue layer 4 and a grinding material layer 3, and the middle part of the wheel body 1 is provided with a through hole 6. The polishing wheel has good heat dissipation and certain elasticity in the grinding process, and can improve the grinding efficiency.

In the winding type polishing wheel of the present embodiment, the meshes of each layer of the mesh cloth 2 themselves and the meshes of the adjacent mesh cloths 2 are communicated with each other to form a gap 12 of the wheel body, and the abrasive is adhered in the gap 12, as shown in fig. 15. The meshes of each layer of the mesh cloth 2 form a gap 12 of the wheel body; the mesh holes of the adjacent mesh cloths 2 are communicated with each other to form a wheel body gap 12. The interior and the surface of the wheel body are provided with a gap 12. When the end face of the winding type polishing and grinding wheel is used for grinding operation, the gaps 12 formed by the meshes of each layer of mesh cloth play a beneficial role, and a grinding action similar to saw teeth is formed; when the circumferential surface of the winding type polishing and grinding wheel is used for grinding operation, the gaps 12 formed by the communicated meshes of the adjacent mesh cloths play a beneficial role, and a grinding action similar to saw teeth is formed.

In this embodiment, the meshes of the wound layers of mesh cloth are staggered. It is of course also possible that the meshes of the wound layers of mesh cloth 2 are aligned.

In this embodiment, a plurality of layers of cotton mesh cloth after being glued in the fourth step are wound into a cylinder, a certain pressure is applied for forming, and then pressure curing and slitting are performed to form a wound mesh cloth (imitation) with a thousand impeller, as shown in fig. 11 and 12. In this embodiment, several layers of cotton mesh cloth after being glued in the fourth step are wound into a cylinder, a certain pressure is applied to form the cylinder, then the cylinder is pressed, cured and cut, and a handle 8 (such as a round handle) is inserted into a through hole in the middle of the wheel body 1, so as to form the winding mesh cloth belt handle wheel, as shown in fig. 13 and 14.

Example 3

the method comprises the following steps: dipping and gluing: soaking the nylon mesh cloth in glue;

step two: sand planting: planting sand on the nylon mesh cloth subjected to the dipping and gluing in the first step to enable the grinding materials to be attached to the nylon mesh cloth;

step three: pre-baking: pre-baking the nylon mesh cloth subjected to sand planting in the second step;

step four: compounding glue: coating glue on the nylon mesh cloth pre-baked in the third step;

step five: winding: winding a plurality of nylon mesh fabrics which are subjected to the fourth glue compounding step into a cylindrical shape, and applying certain pressure for forming to obtain a primary winding (imitation) nylon wheel product;

step six: and (3) pressurizing and curing: pressurizing and curing the primary wound (imitated) nylon wheel product wound in the step five by using curing equipment;

step seven: slitting: and cutting the primary wound (imitated) nylon wheel product subjected to pressure curing in the sixth step by using a cutting device to obtain a finished wound (imitated) nylon wheel product.

The polishing and grinding integrated wheel prepared in the embodiment is a winding (imitation) nylon wheel, the wheel body 1 of the winding (imitation) nylon wheel comprises a plurality of layers of mesh cloth 2 wound into a cylindrical shape, one side or two side surfaces of any one layer of the mesh cloth 2 are provided with a mixture layer, the mixture layer comprises a glue layer 4 and a grinding material layer 3, and the middle part of the wheel body 1 is provided with a through hole 6. The polishing wheel has good heat dissipation and certain elasticity in the grinding process, and can improve the grinding efficiency.

Example 4

Example 4 is substantially the same as example 1 except that the cotton mesh cloth (mesh cloth woven with cotton) of example 1 is replaced with a hemp mesh cloth (mesh cloth woven with hemp).

Example 5

Example 5 is substantially the same as example 2 except that the cotton mesh cloth (mesh cloth woven with cotton) of example 2 is replaced with a hemp mesh cloth (mesh cloth woven with hemp).

In this embodiment, in the winding process of the fifth step, a tooling tool (e.g. a rod-shaped body such as a steel wire) is added between the layers of the mesh fabric and taken out after the curing of the sixth step, so that the wheel body is formed with a plurality of through holes 11 penetrating through both end surfaces of the wheel body, as shown in fig. 11 and 13.

In the step of dip coating in the step one of any of the above embodiments: and (3) dipping the grid cloth into glue containing the enhanced chopped fibers or/and whiskers, so that the glue layer of the finally prepared grid polishing wheel contains the enhanced chopped fibers or/and whiskers for enhancing the mechanical property of the grid cloth. Can improve net cloth and throw the mechanical properties of grinding integrative wheel body, especially tensile ability avoids appearing throwing the cracked condition of grinding integrative wheel, has improved the security of throwing grinding integrative wheel. Specifically, the reinforced chopped fibers are one or a mixture of a plurality of chopped basalt fibers, chopped glass fibers and chopped carbon fibers; the whisker is one or a mixture of more of calcium sulfate whisker, calcium carbonate whisker, aluminum oxide whisker, zinc oxide whisker and silicon carbide whisker. Preferably, the reinforced chopped fibers are chopped basalt fibers; the crystal whisker is calcium sulfate crystal whisker. When the grid cloth is immersed in the whisker-containing glue for design, the whiskers are micro-nano short fibers, so that the whiskers can penetrate into the warps and wefts of the grid cloth, particularly can be adsorbed at the intersection of the warps and wefts of the grid cloth, a multi-point bonding structure is formed microscopically, and slippage between the warps and wefts of the grid cloth can be avoided. When the design of immersing the mesh cloth in the whisker-containing glue is adopted, the grinding ratio (the ratio of the material grinding amount of the workpiece to the grinding amount of the polishing wheel) can be improved.

In the sand planting step of the second step in any of the above embodiments, electrostatic sand planting equipment or gravity sand planting equipment in the prior art can be used for single-sided or double-sided sand planting. When the sand planting equipment in the prior art is used for carrying out double-sided sand planting operation of the grid cloth, sand planting (primary sand planting) is carried out on one side surface, and then sand planting (secondary sand planting) is carried out on the other side surface.

In order to improve the sand planting efficiency, in the sand planting process of the second step, single double-sided sand planting is carried out on the grid cloth, so that the grinding materials are attached to two side faces of the grid cloth. Specifically, the grid cloth 2 which is dipped, glued and adhered with glue is made to travel through an electric field, and the grinding material 20 falls onto the traveling grid cloth 2; at this time, a part of the abrasive falls down to be attached to the upper side of the mesh cloth 2, and the other part of the abrasive continues to fall after passing through the meshes 23 of the mesh cloth 2; then the grinding material 20 falling through the grid cloth enters the electric field, under the action of the electric field, the grinding material 20 rises and is attached to the lower side surface of the grid cloth 2, the grinding material 20 is implanted on both sides of the grid cloth 2 at one time, and therefore the purpose of single double-sided sand implantation of the grid cloth is achieved; finally, both sides of the grid cloth are provided with mixture layers, and the mixture layers comprise glue layers and abrasive material layers. Alternatively, the abrasive falling through the mesh cloth is conveyed into the electric power field by a conveying device. Alternatively, the abrasive falling through the mesh cloth falls directly into the electric power field.

In order to realize the method for single double-sided sand planting, the invention also provides two double-sided sand planting devices 13, which can implant grinding materials into two side surfaces of the grid cloth at one time, namely, by adopting the double-sided sand planting devices 13, mixture layers can be arranged on the two side surfaces of the grid cloth, and each mixture layer comprises a glue layer and a grinding material layer.

The double-sided sand planting equipment 13 of the invention leads the grid cloth 2 to walk between an upper polar plate and a lower polar plate along a grid cloth walking path 22 by virtue of the guiding action of 2 guide rollers 18, and a lower sand device 15 (a lower sand hopper) is positioned between the two guide rollers 18, so that the lower sand device 15 is positioned above the grid cloth 2. How to make the grid cloth 2 walk between the upper polar plate and the lower polar plate along the grid cloth walking path 22 does not have technical problems, and the prior art means is adopted. In the present invention, although not shown, the structure of the frame of the double-sided sand planting apparatus does not affect the understanding of the double-sided sand planting apparatus by those skilled in the art. Specifically, the following is described.

The first double-sided sand planting equipment for grid cloth sand planting comprises a conveying belt 14, a sand discharging device 15, an upper polar plate 16 and a lower polar plate 17; wherein an upper plate 16 is arranged above a lower plate 17 for generating an electric field for moving the abrasive material upwards; the grid cloth walking path 22 is positioned between the upper polar plate 16 and the lower polar plate 17, and the grid cloth walking path 22 is a path where the grid cloth 2 walks during sand planting; the sand dropping device 15 is arranged above the grid cloth walking path 22 and beside the upper pole plate 16, the abrasive falling path 21 passes through the grid cloth walking path 22, and the abrasive falling path 21 is a path through which the abrasive falls from the sand dropping device 15; the conveyor belt 14 is disposed between the mesh cloth traveling path 22 and the lower plate 17, and serves to convey the abrasive dropped from the lower sand device 15 and passing through the mesh cloth traveling path 22 to between the upper plate 16 and the lower plate 17.

The two-sided sand equipment of planting of first kind possesses static simultaneously and plants the characteristics of sand and gravity planting sand, has gravity when planting sand and plants sand action and static and plant sand action, and its principle is: the gridding cloth 2 adhered with the glue water walks between the upper polar plate 16 and the conveyer belt 14 along a gridding cloth walking path 22, the grinding material 20 moves downwards along a grinding material falling path 21 after falling from the sand falling device 15, and under the action of the self weight of the grinding material 20, a part of the grinding material falls and is adhered to the upper side surface of the walking gridding cloth 2, so that the sand planting action (gravity sand planting action) of the upper side surface of the gridding cloth 2 is realized; because the grid cloth 2 has the meshes 23, the other part of the abrasive 20 passes through the meshes of the grid cloth 2 and continuously falls onto the conveyer belt 14, when the conveyer belt 14 conveys the abrasive 20 between the upper pole plate 16 and the lower pole plate 17, the abrasive 20 moves upwards under the action of the electric field and rises to be attached to the lower side surface of the traveling grid cloth 2, and the sand planting action (electrostatic sand planting action) of the lower side surface of the grid cloth 2 is realized; during the whole sand planting action, when the abrasive material passes through the meshes of the mesh cloth 2, or when the abrasive material 20 moves upwards under the action of the electric field, the abrasive material 20 can be attached in the meshes 23 of the mesh cloth. And the redundant abrasive which is not implanted into the mesh cloth 2 is transported away by the conveyer belt 14 and recycled. Namely, with the double-sided sand planting device of the present invention, as shown in fig. 22 and 23, the abrasive material can be planted on both sides of the mesh cloth 2 at one time, and simultaneously, the abrasive material is also planted in the meshes 23 of the mesh cloth 2, such that the sand planting efficiency is higher, and the cost is lower; the invention has the characteristics of electrostatic sand planting and gravity sand planting, so that the prepared product has the double advantages of wear resistance and sharpness.

Further, as shown in fig. 16 and 17, the conveying surface of the conveying belt 14 is located between the upper plate 16 and the lower plate 17. The conveying surface of the conveyor belt 14 is for conveying abrasive. Preferably, the lower plate 17 is adjacent to the back of the conveying surface of the conveyor belt 14.

Alternatively, as shown in fig. 16, the sand discharging device 15 is positioned at the left side of the upper plate 16. At this time, the sand removing device 15 is positioned between the left guide roller 18 and the upper electrode plate 16, the abrasive is conveyed to the right by the conveyor belt 14, and the guide roller 18 guides the mesh cloth 2 moving to the left, thereby realizing the reverse sand planting operation. Of course, the abrasive may be conveyed to the right by the conveyor belt 14, and the guide roller 18 may guide the mesh cloth 2 traveling to the right, thereby realizing the unidirectional sand-planting operation.

Alternatively, as shown in fig. 17, the sand discharging device 15 is positioned at the right side of the upper plate 16. At this time, the sand discharging device 15 is positioned between the right guide roller 18 and the upper electrode plate 16, so that the abrasive is conveyed leftward by the conveyor belt 14, and the guide roller 18 guides the mesh cloth 2 traveling leftward, thereby realizing the equidirectional sand planting operation. Of course, the abrasive may be conveyed to the left by the conveyor belt 14, and the guide roller 18 may guide the mesh cloth 2 traveling to the right, thereby realizing the reverse sand-planting operation.

The second double-sided sand planting equipment for grid cloth sand planting comprises a sand discharging device 15, an upper polar plate 16 and a lower polar plate 17; wherein: an upper plate 16 is arranged above the lower plate 17 for generating an electric field that moves the abrasive upwards; the grid cloth walking path 22 is positioned between the upper polar plate 16 and the lower polar plate 17, and the grid cloth walking path 22 is a path for the grid cloth 2 to walk when sand is planted; the upper plate 16 has an abrasive passage through which abrasive material can pass; the sand falling device 15 is arranged above the upper pole plate 16, the abrasive falling path 21 sequentially passes through the abrasive passage and the gridding cloth walking path 22, and the abrasive falling path 21 is a path through which the abrasive falls from the sand falling device 15.

The two-sided sand equipment of planting of second kind possesses the static simultaneously and plants the characteristics of sand and gravity planting sand, has gravity when planting sand and plants sand action and static and plant sand action, and its principle is: the gridding cloth 2 attached with the glue water is made to follow the gridding cloth walking path 22; walking between the upper polar plate 16 and the conveyer belt 14, the abrasive 20 moves downwards along the abrasive falling path 21 after falling from the abrasive falling device 15, and under the action of the self weight of the abrasive 20, after the abrasive 20 passes through the abrasive passage of the upper polar plate 16, a part of the abrasive falls and is attached to the upper side surface of the walking grid cloth 2, so that the sand planting action (gravity sand planting action) of the upper side surface of the grid cloth 2 is realized; because the grid cloth 2 is provided with the meshes 23, the other part of the abrasive 20 passes through the meshes of the grid cloth 2 and falls between the upper pole plate 16 and the lower pole plate 17, and meanwhile, the abrasive 20 moves upwards under the action of the electric field and rises to be attached to the lower side surface of the walking grid cloth 2, so that the sand planting action (electrostatic sand planting action) of the lower side surface of the grid cloth 2 is realized; during the whole sand planting action, when the abrasive material passes through the meshes of the mesh cloth 2, or when the abrasive material 20 moves upwards under the action of the electric field, the abrasive material 20 can be attached in the meshes 23 of the mesh cloth. Namely, with the double-sided sand planting device of the present invention, as shown in fig. 22 and 23, the abrasive can be implanted into both sides of the mesh cloth 2 at one time, and simultaneously, the abrasive is also implanted into the mesh holes of the mesh cloth 2, such that the sand planting efficiency is higher, and the cost is lower; the invention has the characteristics of electrostatic sand planting and gravity sand planting, so that the prepared product has the double advantages of wear resistance and sharpness.

Alternatively, as shown in fig. 21a, the upper plate 16 is a grid plate, and the grid holes 161 of the grid plate are the abrasive passages. The lattice holes 161 may be in the shape of a circle, an ellipse, a square, a rectangle, a parallelogram, or the like, as long as they pass through the abrasive 20.

Alternatively, as shown in fig. 21b, the upper plate 16 is a lattice plate, and the lattice holes 162 of the lattice plate are the abrasive passage. The lattice holes 162 may have a kidney-shaped hole shape, an oval shape, a rectangular shape, or the like, as long as the abrasive 20 can pass through.

Alternatively, as shown in fig. 21c, a through hole 163 is formed on the upper plate 16, and the through hole 163 of the upper plate 16 is the abrasive passage. The through-hole 163 may be in the shape of a circle, an ellipse, a square, a rectangle, a parallelogram, or the like, as long as it can pass through the abrasive 20.

Alternatively, as shown in fig. 19, a backing plate 19 is laid on the top surface of the lower plate 17. The adhesive is attached to the mesh cloth 2, after the abrasive 20 passes through the meshes of the mesh cloth 2, the adhesive is possibly attached to the abrasive 20, and if the abrasive 20 contacts the lower plate 17, the abrasive 20 may be adhered to the lower plate 17, so that the abrasive is gradually accumulated on the lower plate 17. Therefore, the invention proposes a design of laying the backing plate 19 on the top surface of the lower polar plate 17, and when a certain amount of abrasive is accumulated on the backing plate, the backing plate 19 can be removed for replacement or cleaned.

Alternatively, as shown in fig. 20, a conveyor belt 14 is further included, and the conveyor belt 14 is arranged between the mesh cloth traveling path 22 and the lower plate 17. The abrasive 20 can be prevented from contacting the lower pole plate 17, and meanwhile, the redundant abrasive which is not implanted into the grid cloth 2 can be transported away and recycled.

Further, as shown in fig. 20, the conveying surface of the conveying belt 14 is located between the upper plate 16 and the lower plate 17. The conveying surface of the conveyor belt 14 is for conveying abrasive. Preferably, the lower plate 17 is adjacent to the back of the conveying surface of the conveyor belt 14.

II, comparison test experiment:

test sample species:

(1) in the embodiment 1, the laminating, polishing and grinding integrated wheel prepared by adopting the cotton mesh cloth specifically comprises the following components: the device comprises a laminated grid cloth multi-layer wheel, a laminated cymbal type grid cloth polishing wheel, a laminated grid cloth (imitated) plane wheel and a laminated grid cloth belt handle wheel.

(2) In embodiment 2, the winding, polishing and grinding integrated wheel prepared from the cotton mesh cloth specifically comprises: winding mesh cloth (imitation) vane wheel and winding mesh cloth belt handle wheel.

(3) The winding, polishing and grinding integrated wheel prepared from the nylon mesh cloth in the embodiment 3 specifically comprises the following components: winding (imitation) nylon wheel.

(4) The polishing wheel in the prior art specifically has: a common plane wheel, a common wheel with a handle, a common vane wheel and a common nylon wheel; the common plane wheel refers to the plane abrasive cloth wheel in the background technology, the common handle wheel refers to the handle abrasive cloth wheel in the background technology, the common thousand impeller refers to the thousand impeller in the background technology, and the common nylon wheel refers to the nylon wheel in the background technology.

Grouping of test samples:

group A: a common plane wheel, a laminated cymbal-shaped tray grid polishing wheel and a laminated cymbal-shaped integrated grid polishing wheel; wherein, the product specification is as follows: 100X 8X 16 (wheel body diameter X wheel body thickness X wheel body through hole diameter, unit is mm).

Group B: the grinding machine comprises a common thousand impeller, a superposed grid polishing wheel with a cover and a coiled grid polishing wheel with a cover; wherein, the product specification is as follows: 240 × 40 × 25 (wheel body diameter × wheel body thickness × wheel body through hole diameter, unit is mm).

Group C: common belt handle wheels, laminated belt handle grid polishing wheels and winding type belt handle grid polishing wheels. Wherein, the product specification is as follows: 50X 25X 6 (wheel body diameter X wheel body thickness X stem diameter, unit is mm).

Group D: a common nylon wheel, a laminating type columnar grid polishing wheel and a winding type columnar grid polishing wheel; wherein, the product specification is as follows: 240 × 40 × 25 (wheel body diameter × wheel body thickness × wheel body through hole diameter, unit is mm).

Description of the test methods:

a group of A laminated grid cloth (imitation) plane wheels, laminated cymbal type grid cloth plane wheels and common plane wheels with the same specification grind A3 steel under the same grinding condition, and the grinding efficiency of the three kinds of grinding wheels is compared.

B groups of laminated mesh cloth belt handle wheels with the same specification, winding mesh cloth belt handle wheels and common belt handle wheels are ground on the A3 steel under the same grinding condition, and the grinding efficiency of the three polishing wheels is compared.

C groups of laminated grid cloth multilayer wheels with the same specification, wound grid cloth (imitated) thousand impellers and common thousand impellers are ground on A3 steel under the same grinding condition, and the grinding efficiency of the three polishing grinding wheels is compared.

And D groups of winding (imitation) nylon wheels and common nylon wheels with the same specification are ground on the A3 steel under the same grinding conditions, and the grinding efficiency of the two polishing wheels is compared.

In A, B, C, D, the abrasive grain size of the grinding wheel is 240#, and the grinding objects are A3 steel.

Description of index calculation method:

grinding amount: material removal of the workpiece, in g.

Grinding efficiency: the unit is g/min, which is the grinding amount of the material divided by the grinding time.

Thirdly, testing results:

A. b, C, D the total grinding time of the four tests is 25min, one section every 5min, and the results of the grinding index of test set A, B, C, D are shown in table 1:

TABLE 1 grinding index test results

Due to space relation, the average grinding efficiency of 25min grinding time periods is calculated according to the grinding amount of 25min grinding total time in the upper table, the grinding efficiency of each time period is not calculated and listed independently, and a person skilled in the art can understand that the grinding efficiency is grinding amount/grinding time, and the grinding efficiency is in a direct proportion relation with the grinding amount; the greater the grinding amount in the same time, the greater the grinding efficiency.

Compared with the laminated grid cloth (imitated) flat wheel and the laminated cymbal type grid cloth polishing and grinding wheel in the prior art in the group A, as can be seen from the table 1, the difference of the grinding amount (grinding efficiency) of the front 5min is not large, but the grinding amount (grinding efficiency) of the common flat wheel is reduced faster than that of the laminated grid cloth (imitated) flat wheel and the laminated cymbal type grid cloth polishing and grinding wheel along with the increase of time. When the grinding time is 25min, the grinding amount and the grinding efficiency of the laminated grid cloth plane wheel and the laminated cymbal type grid cloth polishing wheel are larger than those of a common plane wheel.

Common band handle wheel among the prior art in the B group and the grid strap handle wheel of folding and press and coiling of this application can see from table 1 that, in each time quantum, the grinding volume (grinding efficiency) of coiling grid strap handle wheel is higher than fold and press grid strap handle wheel, and folds and press grid strap handle wheel and be higher than common band handle wheel, and along with the increase of time, the grinding volume (grinding efficiency) of common band handle wheel compares in coiling grid strap handle wheel and fold and press the mesh strap handle wheel and descend fast. When the grinding time is 25min, the grinding amount and the grinding efficiency of the laminated mesh cloth belt handle and the winding mesh cloth belt handle wheel are both larger than those of a common belt handle wheel.

Compared with the laminated grid cloth multilayer wheel and the wound grid cloth (imitated) thousand-blade wheel in the C group, the common thousand-blade wheel in the prior art is shown in the table 1, the grinding amount (grinding efficiency) of the wound grid cloth (imitated) thousand-blade wheel is higher than that of the laminated grid cloth multilayer wheel in each time period, and the grinding amount (grinding efficiency) of the laminated grid cloth multilayer wheel is higher than that of the common thousand-blade wheel. Therefore, when the grinding time is 25min, the grinding amount and the grinding efficiency of the laminated mesh cloth multi-layer wheel and the wound mesh cloth (simulated) thousand impeller wheel are greater than those of the common thousand impeller wheel.

In addition, as can be seen from the group B and the group C, both the winding and polishing integrated wheel and the laminating and polishing integrated wheel are of one specification, and the grinding amount (grinding efficiency) of the winding and polishing integrated wheel is slightly larger than that of the laminating and polishing integrated wheel when the same test material and test conditions are adopted. A. B, C group of polishing and grinding integrated wheel is made of cotton mesh cloth.

The prior art generic nylon wheel in group D compares to the wound (mock) nylon wheel of the present application, as can be seen from table 1, the grinding yield (grinding efficiency) of the wound (mock) nylon wheel is greater than that of the generic nylon wheel at each time period. When the grinding time is 25min, the grinding amount and the grinding efficiency of the winding (imitation) nylon wheel are greater than those of the common nylon wheel in the prior art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A preparation method of a polishing and grinding integrated wheel is characterized by comprising the following steps:

the method comprises the following steps: dipping and gluing: dipping the mesh cloth in glue;

step two: sand planting: sand planting is carried out on the mesh cloth subjected to the dipping and gluing in the first step, so that the grinding materials are attached to the mesh cloth;

2. A preparation method of a polishing and grinding integrated wheel is characterized by comprising the following steps:

3. The method for preparing a polishing and grinding integrated wheel according to claim 1 or 2, wherein the mesh cloth has obvious and regular meshes.

4. The method for manufacturing a polishing and grinding integrated wheel according to claim 3, wherein the mesh cloth is aligned with meshes in the laminating process; or the meshes of the mesh cloth are staggered in the laminating process.

5. The method for preparing a polishing and grinding integrated wheel according to claim 3, wherein meshes of the mesh cloth are aligned in a positive mode during winding; or, the mesh holes of the mesh cloth are staggered in the winding process.

6. The method for preparing the polishing and grinding integrated wheel according to claim 1 or 2, wherein the mesh cloth is a woven cloth of one or more blended products of hemp fibers, cotton fibers, nylon fibers, paper fibers, glass fibers, basalt fibers, carbon fibers, polyester fibers, polyethylene fibers, magnesium chloride fibers, acrylic fibers, aramid fibers, acetate fibers, viscose fibers, dog hair fibers, horse hair fibers, pig hair fibers and wool fibers.

7. The method for preparing a polishing and grinding integrated wheel according to claim 1 or 2, wherein the abrasive is one or a mixture of natural or artificial synthetic abrasives.

8. The method for preparing a polishing and grinding integrated wheel according to claim 1 or 2, wherein the glue is one or more of natural or synthetic resin.

9. The method for preparing a polishing and grinding integrated wheel according to claim 1 or 2, wherein in the sand planting process of the second step, single double-sided sand planting is performed on the mesh cloth so that the grinding material is attached to two side surfaces of the mesh cloth.

10. The method for preparing the polishing and grinding integrated wheel according to claim 2, wherein a tool is added in the winding process of the fifth step; preferably, the tool is an iron wire.