CN115194972A - Rubber combined deep processing technology - Google Patents
Rubber combined deep processing technology Download PDFInfo
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Classifications
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- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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- B29B7/7466—Combinations of similar mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a rubber combined deep processing technology, which relates to the technical field of rubber processing, and comprises the following steps: s1: performing sampling inspection on rubber raw materials, formulating a production formula according to appearance quality and inspection indexes, and calculating the proportion of at least two raw materials; s2: conveying the proportioned raw materials to kneading and processing equipment through a conveyor belt for main line kneading and processing; s3: cooling the kneaded rubber material; s4: weighing, packing, qualified inspection and boxing. The rubber combined deep processing technology provided by the invention is used for optimizing, proportioning, processing and upgrading unqualified products processed on a production line, so that qualified products meeting the production requirements of tire enterprises are produced, the additional value of the products is further improved, and transformation and upgrading of the rubber processing industry are promoted.
Description
Technical Field
The invention relates to the technical field of rubber processing, in particular to a rubber combined deep processing technology.
Background
The natural rubber is a key raw material for radial tire production, the quality of the radial tire is determined to a great extent, and the special rubber for the radial tire has extremely high requirements on quality grade and quality stability, but is affected by factors such as regions (objective factors such as climatic conditions, soil conditions and the like) and the level of rubber garden management (human factors such as six clean rubber gardens and the like) due to large performance index fluctuation of the raw material, so that the performance index of the raw material is unstable, and the quality of tire products or other products is further affected.
The raw materials of the natural rubber processing industry are generally divided into two types, namely rubber garden gel and standard rubber, wherein the rubber garden gel mainly comprises a rubber cup rubber ball, a raw rubber sheet, a crepe sheet, a smoked sheet and the like, and the standard rubber mainly comprises No. 5 rubber, no. 10 rubber and No. 20 rubber. At present, the domestic production methods of the natural rubber standard rubber have three types: traditional line, waterline, trunk line. The raw materials of the traditional line are fresh natural glue collected from a glue forest to produce WF glue, and the core equipment is a coagulating tank, a thinning machine, a creper, a granule tearing machine and a drying cabinet; the raw materials of waterline are film (give birth to crepe, white paillette, smoked sheet etc.), glue garden gel (glue group, cup glue etc.), produce that SCR5 glues, SCR10 glues, SCR20 glues, SCR50 glues (wait outward), core equipment: the device comprises a crusher, a double-roller machine, a single-roller machine, a flotation tank, a vibrating washing screen, a crepe machine, a grain tearing machine and a drying cabinet; the main line raw materials are standard glue (SCR 5 glue, SCR10 glue, SCR20 glue), clear glue or equal outer glue, the specification of the raw materials is 33.3kg (670cm × 330cm × 200cm) and 35kg (680cm × 340cm × 200cm) standard glue, because the raw materials are kneaded by a dry mixer, irregular blocks of 10-20mm are cut by a machine head cutter head, for distinguishing granular TSR20 glue, the TSR glue is called as block TSR20, and the main line core equipment comprises: a rubber sawing machine, a dry stirring machine and a cooling cabinet.
Through development for many years, the existing rubber processing technology mostly adopts a mode of water washing processing by a waterline, the raw materials mostly take rubber garden gel as a main part, and most of the raw materials of the processing production are collected in the rubber garden. However, in the process of glue garden management, the glue garden gel used as the raw material is easy to introduce impurities and oxidize, so that the physicochemical indexes of the glue garden gel after passing through the traditional production line still can not meet the requirements of national standards or enterprise standards. If the product is returned to the traditional washing processing line, the physical and chemical indexes of the rubber can be reduced, the processing cost is further increased, unqualified products are produced, and the resource waste is caused.
Due to the limitation of natural conditions, the global rubber planting area and the yield are slowly increased, and in 2015, the global rubber planting area is 1250 ten thousand hectares, and the yield is 1294 ten thousand tons. China is a large rubber producing country, the yield of natural rubber in China in 2018 is 82.40 ten thousand tons, although the yield is continuously improved, the consumption rate is increased faster, the demand of the natural rubber in China is notched and reaches 455.8 ten thousand tons in 2018, namely 84.7% of the demand needs to be met by importing from abroad, and the technical problem of how to improve the yield and ensure the processing qualification rate of rubber products is always to be solved urgently by technical personnel in the field.
The invention with publication number CN106514901A discloses a primary processing technology of natural rubber, which adds a raw material inlet on the basis of the original technology, and can use different processing equipment according to different raw materials to deeply remove impurities in the natural rubber through effective crushing, mixing, kneading and cleaning, thereby obtaining the standard natural rubber with various physicochemical property indexes reaching the standard. The scheme is improved from a process device, various devices are added, the cost of a processing process production line is greatly increased, the qualified rate of processed products is only increased, and certain resource waste still exists for unqualified products.
Disclosure of Invention
In view of the above, the invention aims to provide a rubber combined deep processing technology, which is used for optimizing, proportioning, processing and upgrading unqualified products processed on a production line to produce qualified products meeting the production requirements of tire enterprises, further improving the additional value of the products and promoting transformation and upgrading of the rubber processing industry.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a rubber combined deep processing technology comprises the following steps:
s1: performing sampling inspection on rubber raw materials, formulating a production formula according to appearance quality and inspection indexes, and calculating the proportion of at least two raw materials;
s2: conveying the proportioned raw materials to kneading and processing equipment through a conveyor belt for main line kneading and processing;
s3: cooling the kneaded rubber material;
s4: weighing, packing, qualified inspection and boxing.
According to the rubber combined deep processing technology, the rubber raw materials are subjected to physical and chemical index sampling inspection, data processing is further performed through computer matching, and the matching of various raw materials is calculated, so that the raw materials with different quality conditions are fully utilized, the waste of the raw materials is reduced, the limitation of raw material selection is relieved, and the production efficiency is improved. Meanwhile, the rubber combined deep processing technology disclosed by the invention better meets the industrial requirement of green manufacturing, and can lead the transformation and upgrading of the natural rubber processing industry to the sustainable development direction.
Further, in step S1, the rubber raw material is a rubber material produced by water line processing.
Further, the rubber raw material is a rubber material which is unqualified in quality inspection after being processed and produced by a production line.
The rubber combined deep processing technology further improves the existing rubber processing technology, further optimizes and upgrades the rubber which cannot be processed and qualified by the traditional production line, produces qualified products meeting the production requirements of tire enterprises, further improves the added value of the products and promotes the transformation and upgrading of the rubber processing industry.
Further, in step S1, the index of the rubber raw material subjected to the spot check assay includes: the rubber raw materials are divided into equal parts by mass, and then the formula proportion of various raw materials is calculated through computer proportioning and appearance quality and physical and chemical indexes to formulate a production formula.
Furthermore, the index of the rubber raw material for the sampling test also comprises a tensile strength index.
Further, step S2 includes:
s21: arranging the cut rubber raw materials meeting the proportion of the raw material production formula on a conveyor belt according to the proportion, and uniformly conveying the rubber raw materials to first-stage deep processing kneading equipment;
s22: conveying the rubber material subjected to the first-stage deep processing kneading to second kneading and processing equipment for second-stage deep processing kneading;
the first kneading and processing equipment and the second kneading and processing equipment are provided with different numbers of movable and fixed cutters, different hole diameters of a cutter disc at a discharge hole and different discharge speeds.
Further, a spraying device is arranged at the feed inlet 301 of the kneading and processing equipment, and is used for spraying any one or more of a constant viscosity agent, a deodorant, a vulcanizing agent, an anti-aging agent, a reinforcing filler, a softener, a coloring agent and a foaming agent to the rubber raw material entering the kneading and processing equipment.
The arrangement enables the rubber combined deep processing technology to increase the variety of rubber raw materials, can produce products with customized indexes, and further improves the added value of the products.
Further, in step S3, the rubber material kneaded in step S2 is air-cooled by an air cooling system, so that the temperature of the rubber material reaches a preset temperature T or below, wherein the preset temperature T is less than or equal to 55 ℃.
Further, step S4 includes the steps of:
s41, weighing the rubber material cooled in the step S3 according to a standard weight;
s42: the weighed rubber material enters a packing machine for packing, wherein the pressure of the packing machine is 100-150 tons;
s43: detecting the appearance quality of the packed bale, detecting the bale with qualified appearance quality by a metal detector, and returning the bale with unqualified appearance quality to S42 for repacking;
s44: the plastic bags are sleeved with bags and sealed after being sampled;
s45: and (4) packaging the bagged glue into a shaping box for box pressing, wherein the box pressing time is not less than 8 hours.
Further, in step S44, the cap bag is sealed by using a single-layer film bag and a double-layer film bag.
Compared with the prior art, the rubber combined deep processing technology has the following advantages:
(1) The production efficiency of the rubber combined deep processing technology is further improved, the traditional production line has 2-2.5 tons/hour per hour, the yield of the deep processing technology reaches 5-6 tons/hour, the production efficiency is obviously improved, and the ton processing cost is obviously reduced.
(2) The rubber combined deep processing technology can carry out deep processing treatment on unqualified raw materials processed by the traditional technology to obtain qualified raw materials, greatly optimizes and integrates resources, fully utilizes the raw materials with different quality conditions, relieves the limitation on raw material selection to a greater extent, and improves the added value of products.
(3) The rubber combined deep processing technology can carry out customized production according to certain index or performance of customers, broadens the application range of products and better meets the industrial requirement of green manufacturing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a rubber combined deep processing technology according to an embodiment of the invention;
FIG. 2 is a flow chart of the kneading process of the rubber combined further processing process according to the embodiment of the present invention;
FIG. 3 is a flow chart of an inspection process and a packaging process of the rubber combined deep processing process according to the embodiment of the invention;
FIG. 4 is a detailed flow chart of a rubber combined deep processing process according to an embodiment of the invention;
fig. 5 is a schematic structural view of a kneading and processing apparatus according to an embodiment of the present invention;
description of reference numerals:
host computer 1, reduction gear 2, host computer 3, feed inlet 301, discharge gate 302.
Detailed Description
In order to make the technical means, objectives and functions of the present invention easy to understand, the following detailed description of the embodiments of the present invention with reference to the specific drawings.
It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "lateral", "longitudinal", "center", and the like are used only for explaining the relative positional relationship, connection, and the like between the respective members in a certain state (as shown in the drawings), and are only for convenience of describing the present invention, but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
A rubber combined deep processing technology comprises the following steps:
s1: performing sampling inspection on rubber raw materials, formulating a production formula according to appearance quality and inspection indexes, and calculating the proportion of at least two raw materials;
s2: conveying the proportioned raw materials to kneading and processing equipment through a conveyor belt for trunk line kneading and processing;
s3: cooling the kneaded rubber material;
s4: weighing, packing, qualified inspection and boxing.
The invention discloses a rubber combined deep processing technology, which comprises the steps of performing sampling inspection and test on raw materials, recording physicochemical index parameters of the raw materials, warehousing the raw materials, during processing and production, assigning formulas to various raw materials according to the entered physicochemical index parameters through a computer formula, calculating the proportion of various raw materials, enabling the physicochemical index parameters of the various raw materials after proportioning to meet the physicochemical index parameters of qualified products, further conveying at least two raw materials meeting the proportion to kneading and processing equipment through a conveyor belt for trunk line kneading and processing, wherein the kneading and processing equipment is also called a processor or a post-processor or a dry stirring machine, the arrangement of drying processes is reduced, the kneading and processing equipment comprises a motor 1, a reducer 2 and a host machine 3, the host machine comprises a feeding port 301 and a discharging port 302, feed inlet 301 with set up the host computer inner chamber between the discharge gate 302, set up stationary knife, screw axis move sword and discharge gate and move the stationary knife inside the host computer inner chamber, set up a plurality of stationary knife on the casing of host computer inner chamber, rubber materials after the cutting ratio gets into the host computer inner chamber from the feed inlet 301 of host computer, rubber materials after preliminary cutting passes through the stationary knife on the casing, the screw axis moves the cutting action between the stationary knife and the discharge gate moves, thereby stir garrulous, cut, rub rubber materials, make the raw materials that have different physics and chemistry indexes can carry out intensive mixing, and then carry out cooling process to the sizing material after kneading, improve the uniformity and the stability of raw and other materials product, weigh the raw and other materials that come out to the processing at last, the packing, qualified inspection, vanning work.
According to the rubber combined deep processing technology, the rubber raw materials are subjected to physical and chemical index sampling inspection, data processing is further performed through computer matching, and the matching of various raw materials is calculated, so that the raw materials with different quality conditions are fully utilized, the waste of the raw materials is reduced, the limitation of raw material selection is relieved, and the production efficiency is improved. Meanwhile, the rubber combined deep processing technology disclosed by the invention better meets the requirement of the green manufacturing industry, and can lead the transformation and upgrading of the natural rubber processing industry to the direction of sustainable development.
As a preferable example of the present invention, in step S1, the rubber raw material is a rubber compound produced by water-line processing. Preferably, the rubber raw material is a rubber material which is unqualified in quality inspection after being processed and produced by a production line.
The rubber combined deep processing technology further improves the existing rubber processing technology, further optimizes and upgrades the rubber which cannot be processed and qualified by the traditional production line, produces qualified products meeting the production requirements of tire enterprises, further improves the added value of the products and promotes the transformation and upgrading of the rubber processing industry.
As a preferred example of the present invention, in step S1, the indexes of the rubber raw material subjected to the spot check assay include: the rubber raw materials are divided into equal parts by mass, and then the formula proportion of various raw materials is calculated through computer proportioning and appearance quality and physical and chemical indexes to formulate a production formula.
Preferably, the index of the rubber raw material subjected to the spot test further includes a tensile strength index.
As a specific example of the present invention, in step S1, the rubber raw material is subjected to sampling assay including appearance quality sampling inspection, and cut rubber is subjected to assay. The assay criteria include: impurity content, ash content, volatile matter content, nitrogen content, plastic initial value, antioxidant index and Mooney viscosity, and if necessary, tensile property detection is carried out; the calculated material proportion of various raw rubber is cut by a rubber cutting device on a production line, the number of cutting blocks is calculated according to the specification of standard rubber raw materials, and each piece of raw material specification generally weighs 33.3kg, 35kg or 40kg, for example: the method comprises the steps of cutting 35kg of raw materials into 10 blocks, wherein the weight of each block is 3.5 kg, calculating the formula proportion of each raw material according to the appearance quality and the physical and chemical indexes, preparing a production formula meeting the quality requirement of a product, enabling the physical and chemical index parameters in the mixed raw materials meeting the production formula to be within a qualified range, taking the test result of the rubber raw materials as the main basis of the formula proportion, and taking the appearance quality as one of the bases of the mixture ratio of the raw materials.
As a preferred example of the present invention, step S2 includes:
s21: arranging the cut rubber raw materials meeting the proportion of the raw material production formula on a conveyor belt according to the proportion, and uniformly conveying the rubber raw materials to first-stage deep processing kneading equipment;
s22: conveying the rubber material subjected to the first-stage deep processing kneading to second kneading and processing equipment for second-stage deep processing kneading;
the first kneading and processing equipment and the second kneading and processing equipment are provided with different numbers of movable cutters and fixed cutters, different hole diameters of cutter heads at the discharge port and different discharge speeds.
Preferably, the number of holes in the cutterhead of the first kneading and processing device is less than the number of holes in the cutterhead of the second kneading and processing device, the aperture in the cutterhead of the first kneading and processing device is greater than the aperture in the cutterhead of the second kneading and processing device, and the number of stationary knives of the first kneading and processing device is less than that of the second kneading and processing device.
Specifically, the discharge hole cutter disc of the first kneading and processing device adopts 20-22 holes, the number of the fixed cutters is 30-40, the discharge hole cutter disc of the second kneading and processing device adopts 26-28 holes, and the number of the fixed cutters is 35-45.
The inventor discovers through research that holes of a cutter disc of first kneading and processing equipment are compared with holes of a cutter disc of second kneading and processing equipment, the structure is provided with a structure with fewer holes and larger hole diameter, the number of fixed knives of the first kneading and processing equipment is less than that of the second kneading and processing equipment, the first kneading and processing equipment mainly kneads different rubber materials preliminarily and discharges the rubber materials to the second kneading and processing equipment rapidly so as to meet the requirement of yield, the second kneading and processing equipment can achieve the effect of further kneading and uniformly mixing various rubber materials so as to meet the quality requirement of qualified products, and the rubber materials are sheared by the equipment and have different degrees of friction and are extruded from the kneading and processing equipment easily so as to ensure the yield and the quality of the products. In addition, the temperature of the rubber material at the discharge port of the first kneading and processing equipment is 120-130 ℃ and the temperature of the rubber material at the discharge port of the second kneading and processing equipment is 110-120 ℃ after the rubber material is kneaded by the mechanism, so that the discharge temperature of the kneading and processing equipment is reliably reduced, and the cooling processing efficiency is improved.
According to the rubber combined deep processing technology disclosed by the invention, rubber materials meeting the production formula are kneaded and mixed by adopting two kneading and processing devices with different cutting and stirring structures, so that the rubber materials are uniformly mixed according to the raw material production formula, and the rubber materials with different physicochemical indexes are subjected to secondary kneading and processing to obtain qualified raw materials by changing the aperture and the discharging speed of a discharge hole cutter head. As a preferred example of the present invention, three or more of the kneading and processing apparatuses may be provided as needed.
The kneading procedure in the step S2 is set at least twice, so that the reliability of the rubber combined deep processing technology for deep processing of unqualified rubber raw materials is ensured, and the resources are greatly optimized and integrated.
As a preferred example of the present invention, a spraying device is provided at the feed inlet 301 of the kneading and processing apparatus, and the spraying device is used for spraying any one or more of a permanent adhesion agent, a deodorant, a vulcanizing agent, an anti-aging agent, a reinforcing filler, a softener, a coloring agent, and a foaming agent to the rubber raw material entering the kneading and processing apparatus.
The arrangement enables the rubber combined deep processing technology to increase the variety of rubber raw materials, can produce products with customized indexes, and further improves the added value of the products.
As a preferred example of the present invention, in step S3, the rubber material kneaded in step S2 is air-cooled by an air cooling system so that the temperature of the rubber material reaches a preset temperature T or lower, wherein the preset temperature T is less than or equal to 55 ℃.
Preferably, the air cooling system comprises a cooling cabinet, and the cooling cabinet adopts an upper air cooling secondary cooling system and a lower air cooling secondary cooling system.
The invention discloses a rubber combined deep processing technology, which divides a cooling cabinet into two cooling units by specially improving the cooling cabinet, wherein one cooling unit is used for cooling air from top to bottom, the other cooling unit is used for cooling air from bottom to top, and the two units are connected by arranging air pipes so as to change the flow direction of hot air. When the cooling cabinet is used, hot air of the two cooling units is uniformly pumped by the exhaust fan, and negative pressure is formed in the cooling cabinet, so that the upper surface and the lower surface of the rubber material are uniformly cooled. Meanwhile, the air pressure and the flow of the exhaust fan can be increased, and the cooling efficiency of the sizing material and the consistency of the product performance can be improved. Preferably, one end of the cooling cabinet close to the kneading and processing equipment is provided with an upwind cooling unit, and the downwind cooling unit of the kneading and processing equipment is arranged at the rear end of the upwind cooling unit. According to the arrangement, the upper air cooling unit cools the rubber material and then enters the lower air cooling unit along the air pipe, the cooling air in the upper air cooling unit blows from bottom to top under the action of the lower air cooling unit, and the hot air floats upwards and the cold air sinks under the normal state, so that the cooling air can sink again after being blown upwards by the lower air cooling unit through the rubber material, and therefore the purposes of simplifying the device, improving the cooling efficiency and ensuring the consistency of the performance of the rubber material product are achieved.
The invention discloses a rubber combined deep processing technology, which is different from the traditional cooling cabinet in that: traditional cooling cabinet is taken the hot-blast of sizing material out through the draught fan, and the cooling principle is one-way forced air cooling, and the wind direction is either from last to lower, or from supreme down, and the sizing material probably cools off upper surface or lower surface. This results in insufficient cooling of the glue, often with one side at a lower temperature and the other side at a higher temperature, which leads to excessive cooling temperatures that can cause the finished product to regain moisture and mold.
The rubber combined deep processing technology disclosed by the invention cuts, extrudes and kneads raw materials with different physical and chemical indexes through at least two kneading processes, the rubber materials generate certain temperature rise due to the actions of kneading, friction and the like in the kneading process, the function of softening the rubber materials is achieved, the consistency and the uniformity of products processed and produced by the rubber materials are further improved, the temperature of the rubber products processed by the kneading processes is higher, the product post-processing can be carried out after cooling, the rubber raw material products are quickly cooled to below a preset temperature T, and the consistency and the stability of the physical and chemical properties of the rubber raw material products are ensured.
As a preferred example of the present invention, step S4 includes the steps of:
s41, weighing the rubber material cooled in the step S3 according to a standard weight;
s42: the weighed rubber material enters a packing machine for packing, wherein the pressure of the packing machine is 100-150 tons;
s43: detecting the appearance quality of the packed bale, detecting the bale with qualified appearance quality by a metal detector, and returning the bale with unqualified appearance quality to S42 for repacking;
s44: the rubber bag is sleeved with a bag and sealed after being sampled;
s45: and (4) packaging the bagged glue into a shaping box for box pressing, wherein the box pressing time is not less than 8 hours.
As a preferred example of the present invention, in step S41, the weighing standard is generally 33.3 kg/piece, 35 kg/piece.
As a preferred example of the present invention, in step S44, 3 to 5 pieces of bale and cut samples are extracted in each tray by tray. For example, a tray of 36 pieces of glue, 3 pieces of the glue are extracted and cut.
As a preferred example of the present invention, in step S44, the cap bag may be sealed by using a single-layer film bag and a double-layer film bag.
As a preferred example of the invention, a weight rechecking step is added between the step S44 and the step S45, the rubber bags with the weight rechecked without errors are shaped and boxed, and the products after boxing and shaping are qualified and delivered out of the warehouse.
The rubber combined deep processing technology disclosed by the embodiment of the invention comprises the working procedures of proportioning, kneading, cooling, inspection, packaging and the like, a production formula is formulated after the raw materials are inspected and analyzed, the raw materials enter the kneading working procedure according to the formula proportion, the rubber material enters the cooling working procedure after being fully kneaded and processed, the cooled rubber material enters the appearance inspection and physical and chemical index inspection working procedures, and then the product enters the packaging working procedure, so that the deep processing production of the rubber raw materials is realized. Specifically, the rubber combined deep processing technology comprises the following processing steps: warehousing raw materials (sampling physical and chemical index testing and appearance quality inspection), computer formula (calculating various raw material proportions), cutting various raw materials according to proportions by a rubber cutting machine, conveying the raw materials to a first kneading and processing device, conveying the raw materials to a second kneading and processing device by a conveying belt, cooling the raw materials to below 55 ℃ by a cooling cabinet, weighing (33 kg, 35kg or 40 kg), pressing and packaging by a packaging machine (100 tons to 150 tons of pressure), appearance inspection and sampling (six-side inspection and cross section inspection), detecting metals, packaging process (single-layer or double-layer low-density polyethylene film bag packaging), weight rechecking, boxing and shaping, and qualified delivery from a warehouse.
According to the rubber combined deep processing technology disclosed by the embodiment of the invention, the existing rubber processing technology production line is further improved, the qualified rubber which cannot be processed by the traditional production line is further optimized and upgraded, the qualified product meeting the production requirements of tire enterprises is produced, the resources are optimized and integrated to a great extent, the raw materials with different quality conditions are fully utilized, the limitation on raw material selection is relieved to a great extent, and the added value of the product is improved. Meanwhile, the rubber combined deep processing technology disclosed by the embodiment of the invention can be combined with any conventional rubber production line for use, so that the application range of the technology is widened, the cost of upgrading and modifying the conventional rubber production line is reduced, the requirements of the green manufacturing industry are met, and the transformation and upgrading of the natural rubber processing industry to the sustainable development direction can be led.
According to the rubber combined deep processing technology disclosed by the embodiment of the invention, the kneading and processing equipment adopts the dry stirring machine to carry out trunk line kneading and processing, the capacity of the dry stirring machine is matched with that of an original production line, a rear conveying belt of the dry stirring machine can be built into a fixed type and can also be built into a movable type, the setting of a drying procedure is reduced, the quality of rubber materials is further improved, the limitation of a technology improving field is reduced, the technology improving cost is reduced, the purpose that qualified rubber which cannot be processed by a traditional production line is further optimized and upgraded is realized, and qualified products meeting the production requirements of tire enterprises are produced.
The rubber combined deep processing technology disclosed by the embodiment of the invention has the following beneficial effects:
1. the production efficiency is further improved, the traditional production line is 2-2.5 tons/hour per hour, the deep processing technology establishes a production formula through computer proportioning, the yield reaches 5-6 tons/hour, the production efficiency is obviously improved, and the ton processing cost is obviously reduced;
2. the combined deep processing technology can carry out deep processing treatment on the raw materials which are processed by the traditional technology and are unqualified, so that the qualified raw materials are obtained, resources are greatly optimized and integrated, the technology makes full use of the raw materials with different quality conditions, the limitation on raw material selection is relieved to a greater extent, and the added value of products is improved;
3. the traditional production line can not directly produce individualized products according to the requirements of customers, and the combined deep processing technology can carry out customized production on certain index or performance according to the customers, so that the application range of the products is widened, and the industrial requirements of green manufacturing are better met.
The production formula disclosed in the application is exemplified by combining the rubber combined deep processing technology disclosed in the invention. For example, if the content of impurities or some other index fails to meet the requirement, the finished product is determined to be a defective product. Through calculation, the sizing materials with different indexes are proportioned, such as: the impurity content of the raw material A is 0.2 (unqualified), the impurity content of the raw material B is 0.05 (qualified), and other indexes meet the national standard requirements. In order to meet the index (such as: 0.10) meeting the customer requirements, the formula ratio is A:10kg, B:20kg, A + B are put into equipment according to the proportion, and the theoretical impurity content is 0.10; (10*0.2+20*0.05)/(10+20).
The production method comprises the steps of equally dividing the raw materials according to standard specifications in terms of equal mass, calculating the formula proportion of each raw material according to appearance quality and physical and chemical indexes, making a production formula meeting the product quality requirement, wherein the physical and chemical index parameters in the mixed raw materials meeting the production formula are all in a qualified range, mixing and calculating the proportions of different raw materials according to the requirement of a rubber product because the limitation of different rubber grades on different physical and chemical index parameters is different, and further conveying at least two raw materials meeting the proportions to kneading and processing equipment through a conveying belt for main line kneading and processing, wherein the qualification rate is close to or even meets 100% after qualified inspection. Preferably, the calculated index parameters are slightly lower than the national standard parameters of the target product, so that the qualified conversion rate of unqualified raw material products can be further improved.
The above example is only used for explaining the computer proportioning in the flow of the rubber combined deep processing technology of the invention, the proportioning proportion is not particularly limited, the rubber raw material is subjected to sampling inspection and test, the physicochemical index of the rubber raw material is obtained, the computer proportioning can be rapidly obtained by adopting data processing systems such as meta, origin and the like, the calculation efficiency is greatly optimized, the reliable production formula is obtained, the quality and the efficiency of the production product of the combined deep processing technology are ensured, and the optimized upgrade of the unqualified rubber is realized.
The invention discloses a rubber combined deep processing technology, which aims at the traditional unqualified raw materials to carry out deep processing, combines mathematical calculation to quickly obtain a production formula meeting the target rubber product, combines two kneading and processing devices with different moving and fixed cutter numbers, the aperture of a discharge port cutter head and the discharge speed, and carries out quick cooling by an improved air cooling system, thereby greatly improving the production efficiency of rubber, greatly alleviating the limitation on raw material selection, avoiding the waste of raw materials and the consumption of other resources, customizing products according to the requirements of customers, and leading the transition upgrading of the natural rubber processing industry to the sustainable development direction.
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, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The rubber combined deep processing technology is characterized by comprising the following steps:
s1: performing sampling inspection and assay on rubber raw materials, formulating a production formula according to appearance quality and assay indexes, and calculating the proportion components of at least two raw materials;
s2: conveying the proportioned raw materials to kneading and processing equipment through a conveyor belt for trunk line kneading and processing;
s3: cooling the kneaded rubber material;
s4: weighing, packaging, qualified inspection and boxing.
2. The combined further processing technology for rubber according to claim 1, wherein in step S1, the rubber raw material is a rubber compound produced by water-line processing.
3. The combined deep processing technology for rubber as claimed in claim 1, wherein the rubber raw material is a rubber material which is unqualified in quality inspection after being processed and produced in a production line.
4. A rubber combined further processing technology according to claim 2 or 3, wherein in step S1, the index of the rubber raw material subjected to the sampling test comprises: the rubber raw materials are divided into equal parts by mass, and then the formula proportion of various raw materials is calculated through computer proportioning and appearance quality and physical and chemical indexes to formulate a production formula.
5. The integrated further processing technology for rubber as claimed in claim 4, wherein the index of performing the spot test on the rubber raw material further includes a tensile strength index.
6. The rubber combined deep processing technology according to claim 1 or 5, wherein the step S2 comprises the following steps:
s21: arranging the cut rubber raw materials meeting the proportion of the raw material production formula on a conveyor belt according to the proportion, and uniformly conveying the rubber raw materials to first-stage deep processing kneading equipment;
s22: conveying the rubber material subjected to the first-stage deep processing kneading to second kneading and processing equipment for second-stage deep processing kneading;
the first kneading and processing equipment and the second kneading and processing equipment are provided with different numbers of movable cutters and fixed cutters, different hole diameters of cutter heads at the discharge port and different discharge speeds.
7. A combined further rubber processing technology according to claim 6, wherein a spraying device is arranged at the feed inlet 301 of the kneading and processing equipment, and is used for spraying any one or more of a permanent adhesion agent, a deodorant, a vulcanizing agent, an anti-aging agent, a reinforcing filler, a softening agent, a coloring agent and a foaming agent to the rubber raw material entering the kneading and processing equipment.
8. The combined further processing technique for rubber according to claim 1, characterized in that in step S3, the rubber compound kneaded in step S2 is air-cooled by an air cooling system to make the temperature of the rubber compound reach below a preset temperature T, wherein the preset temperature T is less than or equal to 55 ℃.
9. The rubber combined deep processing technology according to claim 1 or 8, wherein the step S4 comprises the following steps:
s41, weighing the rubber material cooled in the step S3 according to a standard weight;
s42: the weighed rubber material enters a packing machine for packing, wherein the pressure of the packing machine is 100-150 tons;
s43: detecting the appearance quality of the packed bale, detecting the bale with qualified appearance quality by a metal detector, and returning the bale with unqualified appearance quality to S42 for repacking;
s44: the rubber bag is sleeved with a bag and sealed after being sampled;
s45: and (4) packaging the bagged glue into a shaping box for box pressing, wherein the box pressing time is not less than 8 hours.
10. The combined further processing technology for rubber as claimed in claim 9, wherein in step S44, the covering bag is sealed by using a single-layer film bag and a double-layer film bag.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990795A (en) * | 2012-10-29 | 2013-03-27 | 云南西双版纳维盛橡胶有限公司 | Processing technology for special natural rubber of tires |
| CN108424551A (en) * | 2018-03-30 | 2018-08-21 | 云南滇源橡胶有限公司 | A kind of compounded rubber |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990795A (en) * | 2012-10-29 | 2013-03-27 | 云南西双版纳维盛橡胶有限公司 | Processing technology for special natural rubber of tires |
| CN108424551A (en) * | 2018-03-30 | 2018-08-21 | 云南滇源橡胶有限公司 | A kind of compounded rubber |
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