CN113524863A - Annular conveying belt manufacturing process and annular conveying belt - Google Patents

Annular conveying belt manufacturing process and annular conveying belt Download PDF

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Publication number
CN113524863A
CN113524863A CN202110819282.8A CN202110819282A CN113524863A CN 113524863 A CN113524863 A CN 113524863A CN 202110819282 A CN202110819282 A CN 202110819282A CN 113524863 A CN113524863 A CN 113524863A
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base cloth
base
conveying belt
conveyor belt
endless conveyor
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Chinese (zh)
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不公告发明人
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2433/00—Closed loop articles
    • B32B2433/02—Conveyor belts

Abstract

The invention discloses a manufacturing process of an annular conveying belt and the annular conveying belt, which are used for solving the technical problem that in the manufacturing process of the existing conveying belt, sizing materials are not easy to permeate into the tissue structure of a base cloth of the conveying belt, so that the base cloth layer of the conveying belt is poorly bonded. The invention comprises the following steps: s1, leading out the base cloth, wherein the base cloth enters the hot pressing device from the first supporting wheel of the conveying belt supporting mechanism and is output from the outlet of the hot pressing device, and the base cloth returns to the first supporting wheel by the second supporting wheel of the conveying belt supporting mechanism in a winding manner to form a closed-loop base cloth; s2, repeating the step S1 to form at least two closed ring-shaped base fabrics which are overlapped and sleeved in a stacked mode; and S3, starting a hot pressing device, wherein the hot pressing device is used for pressurizing and heating the multilayer closed-loop base cloth, the heated rubber materials on the surfaces of the two adjacent layers of base cloth are melted, the two adjacent layers of base cloth are connected into a whole through the rubber materials, and the pressurizing and heating operation is an upper and lower flat plate intermittent pressurizing and heating operation or a heating wheel type continuous heating and pressurizing operation.

Description

Annular conveying belt manufacturing process and annular conveying belt
Technical Field
The invention relates to the technical field of manufacturing of conveying belts, in particular to a manufacturing process of an annular conveying belt and the annular conveying belt.
Background
When the conveying belt is manufactured in a traditional mode, a seamless joint process is difficult to realize, and generally, a plurality of layers of base belts are adhered together through rubber materials and then are connected and fixed in a multi-layer mode through pressing to obtain a semi-finished product. And finally, sewing and connecting the two ends of the obtained semi-finished product together by using a sewing thread or an adhesive tape or a pull buckle to form a finished product of the conveying belt with the joint. For example, the surface layer sizing material of the base band is directly fed into an oven for heating, drying and shaping in a fluid state after being scraped with sizing material, and is not ironed in a pressing state, so that the surface of the product has an uneven phenomenon, and the surface of the product is not smooth enough. In addition, in the adhesion stage of the base band, after the sizing material is scraped on the base band, only intermittent pinch rollers press the base band in the heating, drying and shaping stage, so that the two adjacent base bands are not firmly adhered, and foaming or delaminating phenomena are caused easily, thereby producing poor conveyor belt products.
Although the conveyer belt can be manufactured in a blade coating mode in the prior art, and the problems are solved to a certain extent by heating of the heating wheel and pressing of the pressing roller after blade coating, the following problems still exist: the knife coating method generally only can apply a coating or sizing material on the surface of the base fabric, and the sizing material is not easy to permeate into the internal structure of the base fabric, so that poor adhesion is caused.
Therefore, it is an important subject of research by those skilled in the art to find an endless conveyor belt manufacturing process and an endless conveyor belt that can solve the above-mentioned technical problems.
Disclosure of Invention
The embodiment of the invention discloses a manufacturing process of an annular conveying belt and the annular conveying belt, which are used for solving the technical problem that in the manufacturing process of the existing conveying belt, rubber materials are not easy to permeate into the organization structure of a base cloth of the conveying belt, so that the base cloth layer of the conveying belt is poorly bonded.
The embodiment of the invention provides a manufacturing process of an annular conveying belt, which comprises the following steps:
s1, leading out base cloth, wherein the base cloth enters the hot pressing device from a first supporting wheel of the conveying belt supporting mechanism and is output from an outlet of the hot pressing device, and the base cloth rounds back to the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth;
s2, repeating the step S1 to form at least two closed ring-shaped base fabrics which are overlapped and sleeved in a stacked mode;
and S3, starting a hot pressing device, wherein the hot pressing device is used for pressurizing and heating the multilayer closed-loop base cloth, the heated rubber materials on the surfaces of the two adjacent layers of base cloth are melted, the two adjacent layers of base cloth are connected into a whole through the rubber materials under the action of pressure, and the pressurizing and heating operation is an upper and lower flat plate intermittent pressurizing and heating operation or a heating wheel type continuous heating and pressurizing operation.
Optionally, the step S3 specifically includes:
and after two closed-loop base fabrics which are sleeved in a stacked manner are formed, starting a hot-pressing device, pressurizing and heating the closed-loop base fabrics by the hot-pressing device, meanwhile, continuously winding the base fabrics according to the step S2 until the number of the preset base fabric layers is reached, cutting off redundant base fabrics, and continuously pressurizing and heating the multilayer closed-loop base fabrics by the hot-pressing device until all the base fabrics are subjected to at least one heating operation and pressurizing operation by the hot-pressing device.
Optionally, the step S1 specifically includes:
leading out the base cloth, wherein the base cloth enters a sizing material applying device from a first supporting wheel of the conveying belt supporting mechanism, the sizing material applying device applies sizing material to the base cloth, the base cloth after the sizing material is applied enters a hot pressing device and is output from an outlet of the hot pressing device, and the base cloth bypasses the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth.
Optionally, the size application device comprises a padding device;
in the step S1, the base fabric enters the padding device, and the padding device pads the base fabric with a sizing material.
Optionally, the size application device comprises a film delivery device;
in step S1, the film sending device sends out the top film to the top of the base fabric, the film sending device sends out the bottom film to the bottom of the base fabric, and the bottom film and the top film move along with the base fabric.
Optionally, the size applying device comprises a padding device and a film sending device;
in the step S1, the base fabric enters the padding device, the padding device pads the base fabric with a sizing material, then the film sending device sends out a surface film to the surface layer of the base fabric, the film sending device sends out a bottom film to the bottom layer of the base fabric, and the bottom film and the surface film move along with the base fabric.
Optionally, the step S1 further includes:
after the padding device pads the base cloth with the sizing material, the base cloth enters an oven and is baked for a preset time by the oven.
Optionally, the step S1 further includes:
and the first blade coating device is used for blade coating sizing material or sizing agent on the outer surface of the base cloth.
Optionally, the step S1 further includes:
after the sizing material applying device applies the sizing material to the base cloth, the first blade coating device blade coats the sizing material or sizing material on the outer surface of the base cloth.
The embodiment of the invention provides an annular conveying belt, which is manufactured according to the manufacturing process of the annular conveying belt;
the annular conveying belt comprises at least two closed-loop base fabrics and sizing materials, wherein the closed-loop base fabrics and the sizing materials are continuously overlapped and sleeved in a stacked mode;
the closed-loop base fabric is one or more of glass fiber, aramid fiber and graphene fiber, and the sizing material is one or more of polytetrafluoroethylene, polyperfluoroethylene, silica gel and modified silica gel.
According to the technical scheme, the embodiment of the invention has the following advantages:
in this embodiment, multilayer base cloth is carried out pressurization and heating operation by hot press unit for multilayer base cloth can be fully bonded together, effectively improves the yields of conveyer belt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a manufacturing process of an endless conveyor belt according to the present invention
FIG. 2 is a schematic structural diagram of an apparatus for manufacturing an endless conveyor belt according to the present invention;
FIG. 3 is a schematic structural diagram of an apparatus for manufacturing an endless conveyor belt according to the present invention;
FIG. 4 is a schematic structural diagram of an annular base fabric layer in the apparatus for manufacturing an annular conveyor belt according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 3;
FIG. 6 is an enlarged view of the structure at B in FIG. 3;
FIG. 7 is a schematic view of a third structure of an apparatus for manufacturing an endless conveyor belt according to the present invention;
FIG. 8 is a schematic structural diagram of a flat plate type intermittent hot-pressing device in the manufacturing equipment of the endless conveyor belt provided by the invention;
illustration of the drawings: a frame 1; a heating wheel 2; a pinch roller 3; a support wheel 4; a first scraper 5; a first bottom wheel 6; a slurry 7; a trough 8; a roller 9; 10 of rubber compound; a multi-layer base fabric 11; a base fabric 1101; a face layer 1102 of a multi-layer base fabric; a bottom layer 1103 of a multi-layer base fabric; a head end portion 1104 of the multi-layer base fabric; a tail end 1105 of the multi-layer base fabric; a conveyor belt deviation correcting device 12; an auxiliary heating device 13; an endless press belt 14; a surface layer film sending device 15; a base film sending device 16; an oven 17; a base fabric sending device 18; an upper plate 19; a lower plate 20; a conveyor belt length or/and tension adjusting mechanism 21; electrical heating tubes, strips or wires 22; and a press 23 of a flat-plate type intermittent hot press.
Detailed Description
The embodiment of the invention discloses a manufacturing process of an annular conveying belt and the annular conveying belt, which are used for solving the technical problem that in the manufacturing process of the existing conveying belt, rubber materials are not easy to permeate into the organization structure of a base cloth of the conveying belt, so that the base cloth layer of the conveying belt is poorly bonded.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 8, in the manufacturing process of the endless conveyor belt provided in this embodiment, the manufacturing process of the endless conveyor belt is specifically performed by using an endless conveyor belt manufacturing apparatus, and the manufacturing process specifically includes the following steps:
s1, leading out base cloth, wherein the base cloth enters the hot pressing device from a first supporting wheel of the conveying belt supporting mechanism and is output from an outlet of the hot pressing device, and the base cloth rounds back to the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth;
s2, repeating the step S1 to form at least two closed ring-shaped base fabrics which are overlapped and sleeved in a stacked mode;
and S3, starting a hot pressing device, wherein the hot pressing device is used for pressurizing and heating the multilayer closed-loop base cloth, the heated rubber materials on the surfaces of the two adjacent layers of base cloth are melted, the two adjacent layers of base cloth are connected into a whole through the rubber materials under the action of pressure, and the pressurizing and heating operation is an upper and lower flat plate intermittent pressurizing and heating operation or a heating wheel type continuous heating and pressurizing operation.
In this embodiment, multilayer base cloth is carried out pressurization and heating operation by hot press unit for multilayer base cloth can fully bond together, effectively improves the yields of conveyer belt.
Further, the base cloth may be a base cloth already coated with sizing material, such as glass fiber cloth coated with teflon or polyperfluoroethylene in advance, and the finished product of the endless conveyor belt may be obtained in steps S1, S2, and S3, or, of course, in the process of step S2, the base cloth may be heated and pressed layer by layer during the laying process, or the base cloth may be heated and pressed again after the laying process is completed, so as to obtain the finished product.
Further, the step S3 specifically includes:
and after two closed-loop base fabrics which are sleeved in a stacked manner are formed, starting a hot-pressing device, pressurizing and heating the closed-loop base fabrics by the hot-pressing device, meanwhile, continuously winding the base fabrics according to the step S2 until the number of the preset base fabric layers is reached, cutting off redundant base fabrics, and continuously pressurizing and heating the multilayer closed-loop base fabrics by the hot-pressing device until all the base fabrics are subjected to at least one heating operation and pressurizing operation by the hot-pressing device.
Further, the step S1 specifically includes:
leading out the base cloth, wherein the base cloth enters a sizing material applying device from a first supporting wheel of the conveying belt supporting mechanism, the sizing material applying device applies sizing material to the base cloth, the base cloth after the sizing material is applied enters a hot pressing device and is output from an outlet of the hot pressing device, and the base cloth bypasses the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth.
Further, the sizing material application device in the present embodiment includes a padding device including two rolls 9 that are mutually padded and a trough 8 loaded with the sizing material 10;
in the step S1, the base fabric enters the padding device, and the padding device pads the base fabric with a sizing material.
Specifically, the base cloth enters the padding device, and is padded by the two rollers 9 after being soaked with the sizing material 10 in the trough 8.
The rubber material can fully permeate into the internal organization structure of the base cloth in the mode, so that the bonding effect of the multilayer base cloth is better, and the yield of the conveying belt is effectively improved.
Further, the sizing application device comprises a film delivery device comprising a top film delivery device 15 and/or a bottom film delivery device 16;
the surface layer film sending device 15 is positioned above the inlet of the hot pressing device, and the bottom layer film sending device 16 is positioned below the inlet of the hot pressing device;
the surface layer film sending device 15 and/or the bottom layer film sending device 16 comprise guide wheels, material penetrating shafts for unwinding and supporting the films and fixing devices for fixing the material penetrating shafts.
In step S1, the film sending device sends out the top film to the top of the base fabric, the film sending device sends out the bottom film to the bottom of the base fabric, and the bottom film and the top film move along with the base fabric.
Specifically, the surface layer film sending device 15 sends out the surface layer film, the surface layer film is guided by the guide wheel and enters the hot-pressing device along with the base cloth, the surface layer film is bonded on the outer surface of the base cloth under the action of high temperature and pressure to form a smooth outer working surface of the conveying belt, the effect of protecting a tail end interface of the base cloth is achieved, and a seam at the tail end of the base cloth is covered.
The bottom film sending device 16 sends out the bottom film synchronously, the bottom film is guided by the guide wheel and enters the hot-pressing device along with the base cloth, the bottom film is adhered to the inner surface of the base cloth under the action of high temperature and pressure to form a smooth inner working surface of the conveying belt, and the effect of protecting the interface of the starting end of the base cloth is achieved, and the seam of the tail end of the base cloth is covered.
Preferably, the surface film and the bottom film are both teflon (PTFE) films, cold plasma is adopted to treat the surface of the PTFE film in advance, the free energy of the surface of the film is improved, the thermal bonding effect of the film material and glass fiber is enhanced, and the high-temperature gelatinization of the surface of the film is reduced by controlling treatment parameters under the condition of effective bonding. Or coating different high molecular polymer modifiers on the surface of the PTFE and drying the modified PTFE to ensure that the surface of the PTFE in a high-temperature state for a long time has higher bonding fastness and the performances of strength, folding resistance, wear resistance and the like in an acidic or alkaline environment are not influenced; improves the flexibility of PTFE; preferably, the modifier is a silane coupling agent.
Further, the surface layer film and the bottom layer film enter the hot-pressing device together with the base cloth and are encircled into a multi-layer annular structure, the surface layer film and the bottom layer film reach a molten state under the action of high temperature, the surface layer film and the bottom layer film are bonded with the adjacent base cloth under the action of high temperature and pressure, and a finished product is obtained after natural cooling or forced cooling.
Furthermore, the surface layer film and the bottom layer film are wound for a circle in advance along the path of the annular conveying belt, then the base cloth and the surface layer film are wound together for operation, after the required number of layers is reached, the base cloth is cut off, the surface layer film and the bottom layer film continue to operate, one more layer is wound outside the annular conveying belt, the surface layer film and the bottom layer film reach a molten state under the action of high temperature, the surface layer film and the bottom layer film are bonded with the adjacent base cloth under the action of high temperature and pressure, a finished product is obtained after natural cooling or forced cooling, and the inner working surface and the outer working surface of the annular conveying belt are both bonded and coated with a layer of PTFE film, so that the effects of temperature resistance, adhesion resistance and corrosion resistance are achieved.
Further, the sizing material applying device comprises a padding device and a film sending device;
in the step S1, the base fabric enters the padding device, the padding device pads the base fabric with a sizing material, then the film sending device sends out a surface film to the surface layer of the base fabric, the film sending device sends out a bottom film to the bottom layer of the base fabric, and the bottom film and the surface film move along with the base fabric.
It should be noted that, through the above design, the advantages of the padding device and the film sending device are combined, so that the adjacent two layers of base cloth can be better combined, and the improvement of the yield of the conveying belt is facilitated.
Further, the step S1 further includes:
after the padding device pads the base fabric with the sizing material, the base fabric enters the oven 17 and is baked in the oven 17 for a preset time.
After padding by the padding device, the rubber 10 can fully penetrate into the tissue structure of the base cloth, and in the subsequent heating and pressurizing process, the multiple layers of base cloth can be well bonded together, so that the yield of the conveying belt is effectively improved. In addition, the oven 17 is used for discharging moisture and low-temperature decomposition components in the sizing material 10, so that the multiple layers of base fabrics can be better bonded together.
It should be noted that the oven 17 is arranged between the padding device and the hot-pressing device, and the oven 17 is an electric heating oven, a steam heating oven or a heat-conducting oil heating oven;
further, the step S1 further includes:
and the first blade coating device is used for blade coating sizing material or sizing agent on the outer surface of the base cloth.
Further, the step S1 further includes:
after the sizing material applying device applies the sizing material to the base cloth, the first blade coating device blade coats the sizing material or sizing material on the outer surface of the base cloth.
After the sizing material applying device applies the sizing material to the base cloth, the first blade coating device blade coats the sizing material or the sizing material on the outer surface of the base cloth.
Specifically, the first blade coating device is arranged between the padding device and the hot-pressing device;
the first blade coating device comprises a first bottom wheel 6 and a first scraper 5;
the first scraper 5 is arranged above the first bottom wheel 6, the base cloth processed by the sizing material applying device passes through the space between the first bottom wheel 6 and the first scraper 5, the knife edge of the first scraper 5 is arranged towards the outer surface of the base cloth, a gap is reserved between the first scraper 5 and the base cloth, and the first scraper 5 is used for scraping and coating slurry 7 on the outer surface of the base cloth when the base cloth passes through the space between the first bottom wheel 6 and the first scraper 5.
And (3) the redundant slurry 7 is scraped along with the operation of the equipment, a uniform slurry 7 layer is obtained on the surface of the base cloth, then the base cloth enters a hot-pressing device along with the operation of the equipment, and the slurry 7 is heated and cured by the hot-pressing device to obtain the surface layer of the conveying belt.
After the surface layer of the conveying belt is manufactured, an operator overturns the bottom layer and the surface layer of the conveying belt and then sleeves the conveying belt on equipment, the bottom surface of the base cloth is subjected to blade coating by the first blade coating device and then runs along with the equipment to enter the hot-pressing device, and the coating or the sizing material is heated and cured by the hot-pressing device to obtain the bottom layer of the conveying belt.
The coating is coated at the bottom of the conveying belt, so that the friction coefficient of the conveying belt is low, and the phenomenon that the conveying belt is easy to slip in the using process is reduced.
The bottom layer and the surface layer of the conveyer belt can be turned over by hands, and a second blade coating device can be arranged in the annular conveyer belt manufacturing equipment;
the second blade coating device is arranged between the padding device and the hot-pressing device;
the second blade coating device comprises a second bottom wheel and a second scraper;
the second scraper set up in the top of second return pulley, base cloth after the padding is followed the second return pulley with pass between the second scraper, the edge of a knife of second scraper sets up towards the bottom surface of base cloth, leave the clearance between second scraper and the cyclic annular base cloth layer, the second scraper is used for when the base cloth passes the second return pulley with between the second scraper, to the bottom surface knife coating thick liquids 7 of base cloth.
The method is characterized in that the residual coating is scraped off along with the operation of the equipment, a uniform coating layer is obtained on the bottom surface of the base cloth, the coating or the sizing material enters a hot-pressing device along with the operation of the equipment, and the coating or the sizing material is heated and cured by the hot-pressing device to obtain the bottom layer of the conveyer belt.
Further, the conveyor belt supporting mechanism comprises a plurality of supporting wheels 4 rotatably arranged on the frame 1, specifically, the supporting wheels 4 at least comprise a first supporting wheel and a second supporting wheel rotatably arranged on the frame 1, and at least one of the supporting wheels 4 is connected with a conveyor belt length or/and tension adjusting mechanism 21.
Furthermore, the right ends of the first supporting wheel, the second supporting wheel and the roller are arranged in a suspended mode, the left ends of the first supporting wheel, the second supporting wheel and the roller are respectively provided with two bearings, the two bearings are connected with the rack 1 through bearing seats, and the first supporting wheel, the second supporting wheel and the roller 9 are respectively supported through the two bearings.
Furthermore, the right ends of the first supporting wheel, the second supporting wheel and the roller 9 are provided with a support arm capable of swinging, the support arm capable of swinging is movably connected with the rack 1, the support arm capable of swinging is connected with a bearing, and the bearing is rotatably connected with the right ends of the first supporting wheel, the second supporting wheel and the roller 9 in the production process.
Further, the hot pressing device in this embodiment is a flat plate type intermittent hot pressing device or a continuous hot pressing device of a heating wheel type;
the flat plate type intermittent hot-pressing device comprises an upper flat plate 19 and a lower flat plate 20, one end of the lower flat plate 20 is fixed on the rack 1, the other end of the lower flat plate 20 is arranged in a hanging manner or detachably connected with the rack 1, a pressure device 23 of the flat plate type intermittent hot-pressing device is fixed above the rack 1, the upper flat plate 19 and the lower flat plate 20 can be in press fit in a clutching manner through the pressure device 23 of the flat plate type intermittent hot-pressing device, electric heating tubes, electric heating sheets or electric heating wires 22 are arranged inside working surfaces of the upper flat plate 19 and the lower flat plate 20, and the pressure device 23 of the flat plate type intermittent hot-pressing device is an air pressure device or a hydraulic device;
it should be noted that the base cloth enters the working surface between the upper flat plate 19 and the lower flat plate 20 from the first supporting wheel, and then is output from the second supporting wheel and then is wound back to the first supporting wheel, when the base cloth reaches the working surface between the upper flat plate 19 and the lower flat plate 20 for the second time, the hot pressing device is started, the upper flat plate 19 descends, two or more layers of base cloth are pressed between the upper flat plate 19 and the lower flat plate 20, the upper and lower edges are respectively heated by the upper flat plate 19 and the lower flat plate 20, the sizing materials carried by the two or more layers of base cloth are melted through the preset pressure, temperature and pressing time, and then the two or more layers of base cloth are connected together through the sizing materials.
Because the widths of the upper working surface and the lower working surface of the flat plate type intermittent hot-pressing device in the running direction of the base cloth are limited, when the preset pressing time is reached, the upper flat plate 19 is lifted, the base cloth is manually moved or electrically driven by a motor to move forward by the distance of the widths of the working surfaces of the upper flat plate 19 and the lower flat plate 20 in the running direction of the base cloth, the upper flat plate 19 is lowered again, two or more layers of the base cloth are heated and pressed, the process is intermittently repeated until the preset number of the base cloth layers is reached, and all the base cloth is heated and pressed for at least one time in the running direction, so that the two adjacent layers of the base cloth are bonded together by the glue material.
The heating wheel type continuous hot pressing device comprises a heating wheel 2, and a pressing wheel 3 or/and an annular pressing belt 14 which are/is arranged on the periphery of the heating wheel 2;
in operation, the press wheel 3 and/or the endless press belt 14 are driven against the outer surface of the heating wheel 2, and the specific driving means may be a pneumatic cylinder, a hydraulic cylinder, or the like.
Specifically, the annular pressing belt 14 is sleeved on the heating wheel 2 and the supporting wheel 4, a working part of the annular pressing belt 14 is wrapped on the outer side wall of the heating wheel 2, the pressing wheel 3 is located on the inner side surface of the annular pressing belt 14, the annular pressing belt 14 is pressed on the inner side surface of the annular base cloth layer, and the annular pressing belt 14 and the heating wheel 2 apply pressure to the multilayer base cloth together in the thickness direction of the multilayer base cloth layer, so that the multilayer base cloth is bonded.
It should be noted that, through the above design, the multi-layer base cloth processed by the sizing material applying device can be subjected to more pressure in the thickness direction thereof, so that the base cloths in the multi-layer base cloth are better bonded together.
Further, the annular pressing belt 14 is a stainless steel belt, a silica gel belt or a teflon belt.
Further, the number of the heating wheels 2 in this embodiment is plural, the plural heating wheels 2 are sequentially arranged on the frame 1, and the plural heating wheels 2 sequentially perform the front and back heating operations on the endless base fabric layer.
Further, the manufacturing equipment of the endless conveyor belt according to the embodiment further includes an auxiliary heating device 13, where the auxiliary heating device 13 is disposed on an outer side wall of the heating wheel 2 to heat a side surface of the base fabric away from the heating wheel 2;
the auxiliary heating device 13 is an electric heating auxiliary heating device 13 or a steam auxiliary heating device 13 or a heat-conducting oil auxiliary heating device 13.
Further, the sizing material 10 is made of teflon paste 7 or hot melt adhesive or silica gel or TPU or PVC or polyurethane or polypropylene.
Further, the above-mentioned manufacturing process of the endless conveyor belt and the endless conveyor belt further include step S4:
and after the multiple layers of base cloth are bonded together to form a finished product of the annular conveying belt, disassembling the conveying belt supporting mechanism, the hot-pressing device and/or the sizing material applying device, and taking out the finished product of the annular conveying belt.
After the annular conveying belt finished product is manufactured, an operator needs to disassemble each device of the annular conveying belt manufacturing equipment to take out the annular conveying belt finished product.
It should be noted that one end of the hot pressing device, the conveyor belt supporting mechanism or/and the sizing material applying device or/and the first blade coating device is fixedly connected with the corresponding rack 1, and the other end is suspended or detachably connected with the corresponding rack 1.
Specifically, the supporting wheel 4, the pressing wheel 3, the roller 9, the first bottom wheel 6, the first scraper 5, the second bottom wheel and the second scraper are all provided with cantilever structures, and the working ends of the cantilever structures are arranged in a suspension mode, so that the base cloth, the pressing belt and the conveying belt can be sleeved in and taken out conveniently during production.
The working end of the cantilever structure is provided with a plurality of movable support frames, the movable support frames are movably or detachably connected with the main body structure, the first scraper 5, the second scraper, the first bottom wheel 6, the second bottom wheel, the roller 9, the pinch roller 3 and the support wheel 4 are connected with the movable support frames respectively located, for example, the pinch roller 3 is connected with the movable support frames of the pinch roller 3, so that when the movable support frames are disassembled, the working end of the pinch roller 3 can be arranged in a hanging manner, and the base cloth, the press belt and the conveying belt can be conveniently sleeved and taken out during production.
Further, the endless conveyor manufacturing apparatus according to the present embodiment further includes a base cloth sending device 18, and the base cloth sending device 18 is configured to draw out the base cloth at the start of the process.
Further, in order to prevent the deviation of the base band, the manufacturing equipment of the endless conveyor belt in the embodiment further comprises a conveyor belt deviation rectifying device 12, wherein the conveyor belt deviation rectifying device 12 comprises a guide wheel, a fixed seat and a deviation rectifying power device. The deviation rectifying power device is a manual type or photoelectric induction type electric or pneumatic or oil pressure type power device. Through the arrangement of the deviation correcting device, the edge of the base band can be corrected, so that the base band is prevented from falling off from the pinch roller 3.
Further, the manufacturing equipment of the endless conveyor belt related to the embodiment further comprises a conveyor belt length adjusting device, and the length of the conveyor belt is adjusted and changed by adjusting the position of a guide wheel of the conveyor belt length adjusting device. Or by increasing or decreasing the number of guide wheels or said support wheels 4 to make conveyor belts of different lengths.
Further, the frame 1 of the endless conveyor belt manufacturing apparatus according to the present embodiment is provided with a driving mechanism, the driving mechanism is connected to the hot-pressing device, and specifically, the driving mechanism is connected to the heating wheel 2 to drive the heating wheel 2 to rotate relative to the frame 1.
Optionally, the drive mechanism is a servo motor.
Further, a set of trimming devices is respectively arranged on the left side and the right side of the frame 1 of the annular conveyer belt manufacturing equipment, each trimming device comprises a knife rest, a trimming knife, a motor for driving a blade, and a left-right adjusting device, the blade is fixed on the motor, and the motor is fixed on the knife rest.
Through the arrangement of the edge cutting device, the edges of the base cloth can be cut, so that the edges of the finished annular conveying belt are smoother.
Example two
The embodiment provides an annular conveying belt, which is manufactured by the annular conveying belt manufacturing process in the first embodiment;
the annular conveying belt comprises at least two closed-loop base cloths which are continuously overlapped and sleeved and rubber materials 10, the rubber materials 10 and the closed-loop base cloths are sequentially overlapped when viewed from the section of the annular conveying belt, and taking the annular conveying belt with the two closed-loop base cloths which are continuously overlapped and sleeved as an example, the annular conveying belt sequentially comprises rubber materials of a surface layer, the base cloths, middle rubber materials, the base cloths and rubber materials of an inner layer from outside to inside;
it should be noted that the base cloth mentioned above may be a base cloth previously coated with the size 10 before production, and of course, the base cloth may be coated with the size 10 by the size application device during production.
The closed-loop base fabric is one or more of glass fiber, aramid fiber and graphene fiber, and the sizing material is one or more of polytetrafluoroethylene, polyperfluoroethylene, silica gel and modified silica gel.
While the above description has provided the present invention with reference to the drawings, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments and applications of the present invention.

Claims (10)

1. An annular conveyer belt manufacturing process and an annular conveyer belt are characterized by comprising the following steps:
s1, leading out base cloth, wherein the base cloth enters the hot pressing device from a first supporting wheel of the conveying belt supporting mechanism and is output from an outlet of the hot pressing device, and the base cloth rounds back to the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth;
s2, repeating the step S1 to form at least two closed ring-shaped base fabrics which are overlapped and sleeved in a stacked mode;
and S3, starting a hot pressing device, wherein the hot pressing device is used for pressurizing and heating the multilayer closed-loop base cloth, the heated rubber materials on the surfaces of the two adjacent layers of base cloth are melted, the two adjacent layers of base cloth are connected into a whole through the rubber materials under the action of pressure, and the pressurizing and heating operation is an upper and lower flat plate intermittent pressurizing and heating operation or a heating wheel type continuous heating and pressurizing operation.
2. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 1, wherein the step S3 specifically includes:
and after two closed-loop base fabrics which are sleeved in a stacked manner are formed, starting a hot-pressing device, pressurizing and heating the closed-loop base fabrics by the hot-pressing device, meanwhile, continuously winding the base fabrics according to the step S2 until the number of the preset base fabric layers is reached, cutting off redundant base fabrics, and continuously pressurizing and heating the multilayer closed-loop base fabrics by the hot-pressing device until all the base fabrics are subjected to at least one heating operation and pressurizing operation by the hot-pressing device.
3. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 1, wherein the step S1 specifically includes:
leading out the base cloth, wherein the base cloth enters a sizing material applying device from a first supporting wheel of the conveying belt supporting mechanism, the sizing material applying device applies sizing material to the base cloth, the base cloth after the sizing material is applied enters a hot pressing device and is output from an outlet of the hot pressing device, and the base cloth bypasses the first supporting wheel through a second supporting wheel of the conveying belt supporting mechanism to form closed-loop base cloth.
4. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 3, wherein the sizing application device comprises a padding device;
in the step S1, the base fabric enters the padding device, and the padding device pads the base fabric with a sizing material.
5. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 3, wherein the glue applying device includes a film sending device;
in step S1, the film sending device sends out the top film to the top of the base fabric, the film sending device sends out the bottom film to the bottom of the base fabric, and the bottom film and the top film move along with the base fabric.
6. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 3, wherein the sizing material applying device includes a padding device and a film sending device;
in the step S1, the base fabric enters the padding device, the padding device pads the base fabric with a sizing material, then the film sending device sends out a surface film to the surface layer of the base fabric, the film sending device sends out a bottom film to the bottom layer of the base fabric, and the bottom film and the surface film move along with the base fabric.
7. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 4 or 6, wherein the step S1 further includes:
after the padding device pads the base cloth with the sizing material, the base cloth enters an oven and is baked for a preset time by the oven.
8. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 1, wherein the step S1 further includes:
and the first blade coating device is used for blade coating sizing material or sizing agent on the outer surface of the base cloth.
9. The endless conveyor belt manufacturing process and the endless conveyor belt according to claim 3, wherein the step S1 further includes:
after the sizing material applying device applies the sizing material to the base cloth, the first blade coating device blade coats the sizing material or sizing material on the outer surface of the base cloth.
10. An endless conveyor belt, characterized in that it is manufactured according to the endless conveyor belt manufacturing process of any one of claims 1 to 9;
the annular conveying belt comprises at least two closed-loop base fabrics and sizing materials, wherein the closed-loop base fabrics and the sizing materials are continuously overlapped and sleeved in a stacked mode;
the closed-loop base fabric is one or more of glass fiber, aramid fiber and graphene fiber, and the sizing material is one or more of polytetrafluoroethylene, polyperfluoroethylene, silica gel and modified silica gel.
CN202110819282.8A 2021-07-20 2021-07-20 Annular conveying belt manufacturing process and annular conveying belt Pending CN113524863A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192560A (en) * 2012-01-06 2013-07-10 上海杰事杰新材料(集团)股份有限公司 Food and medicine conveyor belt and making method thereof
CN106914387A (en) * 2017-05-10 2017-07-04 东莞市金银丰机械实业有限公司 Conveyer belt manufacture method

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN103192560A (en) * 2012-01-06 2013-07-10 上海杰事杰新材料(集团)股份有限公司 Food and medicine conveyor belt and making method thereof
CN106914387A (en) * 2017-05-10 2017-07-04 东莞市金银丰机械实业有限公司 Conveyer belt manufacture method

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