CN109203327B - Preparation method and processing and trimming equipment of rubber-polyurethane composite product - Google Patents

Abstract

The invention discloses a preparation method and processing and trimming equipment of a rubber-polyurethane composite product, which comprises the following steps: melting the crushed rubber raw materials in a segmented temperature environment, mixing the additives in proportion when the crushed rubber raw materials are melted, and stirring and extruding the mixture; melting the crushed polyurethane raw material in a segmented temperature environment, mixing the proportioning accelerator during melting, stirring and extruding; mixing the rubber finished product and the polyurethane finished product in proportion, and stirring and extruding the rubber-polyurethane composite material in the heat insulation cavity; heating, vulcanizing and stamping the rubber-polyurethane composite material after stirring and extruding; polishing the side and the surface of the rubber-polyurethane composite material product by using a polishing disc to realize trimming and polishing treatment; can carry out the centre gripping to the product of unidimensional not, can polish to the side and the surface of product, improve the scope of using, the operation is simple and easy to the dish of polishing can realize high self-compensating, can avoid damaging product self at the in-process of polishing and have unsmooth characteristic.

Description

Preparation method and processing and trimming equipment of rubber-polyurethane composite product

Technical Field

The invention relates to the technical field of rubber-polyurethane composite products, in particular to a preparation method and processing and trimming equipment of a rubber-polyurethane composite product.

Background

The composite rubber product has the advantages of various materials, such as high strength, light weight, high and low temperature resistance, corrosion resistance, heat insulation, insulation and the like, and high polymer materials and other materials with special properties are selected according to application purposes to prepare the composite materials meeting the requirements.

The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. The rubber belongs to a completely amorphous polymer, the glass transition temperature of the rubber is low, the molecular weight is often very large and is more than hundreds of thousands, and the early rubber is a material which is prepared by processing latex of plants such as rubber trees, rubber grasses and the like and has elasticity, insulativity, impermeability and air. Rubber generally has good abrasion resistance, high elasticity, tensile strength at break and elongation. But it is easy to age in air, becomes sticky when heated, is easy to expand and dissolve in mineral oil or gasoline, and is alkali-resistant but not strong acid-resistant.

Polyurethanes are polymers containing urethane groups in the main chain of macromolecules, called polyurethanes, which are divided into two main classes, polyester polyurethanes and polyether polyurethanes. Polyurethanes have many excellent properties, such as higher mechanical strength and oxidative stability; has higher flexibility and rebound resilience; has excellent oil resistance, solvent resistance, water resistance and fire resistance.

At present, in order to combine the advantages of rubber and polyurethane and solve the defect of solvent and oil resistance of rubber, rubber-polyurethane composite products are put into production and application and are widely applied to the technical fields of shoemaking, mechanical accessories, sports equipment, electronic special parts and the like. At present, the method for producing the rubber-polyurethane composite article for footwear sole generally comprises the steps of: the rubber ingredients are prepared into rubber products, after the rubber products are qualified by inspection, glue is brushed on the surfaces of the rubber products or the surfaces of the polyurethane products, and the rubber products and the polyurethane products are bonded together through the glue, so that the connection between the rubber products and the polyurethane products is realized.

The operation steps can only realize simple bonding and superposition of the rubber product and the polyurethane product, but cannot solve the use defects of rubber, the oil resistance and the solvent resistance of the rubber are poor, and the rubber brushing process not only increases the operation steps, but also increases the labor cost, so that the production cost of the product is higher; in addition, the sole made by the traditional process has the defect that the service life of the shoe is influenced because the glue is easy to lose efficacy after the sole is made into the shoe.

And the preparation device used in the preparation process of the rubber-polyurethane composite product, such as a mixing device, has the main problems of uneven mixing and stirring, no addition of an extrusion mechanism, insufficient elasticity of the rubber-polyurethane material and serious influence on the production quality; in addition, the mold used for the rubber-polyurethane composite product has an unobvious preheating and cooling function, so that the surface of the product is easy to crack, the product performance is poor, the surface is easy to crack, the quality of the product is influenced, in addition, the mold occupies a large space for heating and cooling, the mold is easy to deform, and the service life is seriously influenced; after the injection molding of the rubber-polyurethane composite material is completed, the trimming device used in the processing and trimming process of the rubber-polyurethane composite product has poor adaptability, and cannot adapt to the concave-convex characteristics of the surface of the product, so that the application range is limited.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a preparation method and processing and trimming equipment of a rubber-polyurethane composite product, which can effectively solve the problems in the background art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a method for preparing a rubber-polyurethane composite product,

the method comprises the following steps:

100, mixing raw material components of rubber in proportion, cutting the raw material of the rubber, melting the raw material of the rubber in a segmented temperature environment, proportioning and mixing additives in the molten raw material of the rubber by using a dropping method, and uniformly stirring and extruding to obtain a finished rubber product;

200, mixing various raw materials of polyurethane in proportion, cutting the raw materials of the polyurethane, melting the raw materials of the polyurethane in a segmented temperature environment, proportioning a mixing accelerant in the molten raw materials of the polyurethane by using a dropping method, uniformly stirring and extruding to obtain a rubber finished product;

300, mixing the rubber finished product and the polyurethane finished product in proportion to form a rubber-polyurethane composite material, stirring the rubber-polyurethane composite material in a heat insulation cavity, extruding the rubber-polyurethane composite material by a hammering method while stirring, and adding an auxiliary catalyst in proportion while stirring and extruding;

step 400, heating and vulcanizing the rubber-polyurethane composite material stirred and extruded in the step 300;

step 500, stamping and shaping the vulcanized rubber-polyurethane composite material, removing materials of a product, and polishing the rubber-polyurethane composite material product and a standard product by using a standard contrast method to realize trimming and polishing.

As a preferred embodiment of the present invention, in steps 100 and 200, the segment temperature can be divided into an initial preheating temperature, a middle melting temperature and a later holding temperature, wherein the initial preheating temperature is set in the cutting stage of the rubber raw material and the polyurethane raw material, the middle melting temperature is set in the melting stage of the rubber raw material and the polyurethane raw material, and the later holding temperature is set in the extrusion stage of the rubber raw material and the polyurethane raw material.

As a preferred technical scheme of the invention, the heating temperature of the initial preheating temperature is 60-65 ℃, the heating temperature of the middle melting temperature is 130-150 ℃, and the heating temperature of the later holding temperature is 120-130 ℃.

As a preferred technical scheme of the invention, in step 500, the temperature for performing the segmented heat treatment on the product mold is respectively the primary slow heating temperature of 30-65 ℃, the medium heating temperature of 65-100 ℃ and the stable high temperature of 100-120 ℃.

As a preferred technical solution of the present invention, in step 500, the cooling mode of the product mold may be water cooling and air cooling, and the product mold cooling is also a sectional cooling mode, and the minimum cooling temperature of the product mold is 30 ℃ to 35 ℃.

As a preferred technical scheme of the invention, in step 100 and step 200, high temperature resistant polyester fiber or nylon fiber as a framework material is added in the melted rubber raw material and polyurethane raw material.

In addition, the invention also provides processing and trimming equipment for the rubber-polyurethane composite product, the processing and trimming device comprises a trimming and polishing mechanism and a product clamping mechanism, the product clamping mechanism comprises a C-shaped supporting plate frame and two X-axis sliding bases provided with lower plates of the C-shaped supporting plate frame, a first servo motor is further arranged inside one of the X-axis sliding bases, the first servo motor is connected with a rotating lead screw arranged between the two X-axis sliding bases, an X-axis ball base is sleeved outside the rotating lead screw, a Y-axis moving base is arranged at the upper end of the X-axis ball base, a second servo motor is arranged inside the Y-axis moving base, the second driving motor is also connected with a rotating lead screw arranged inside the Y-axis moving base, a Y-axis ball base is sleeved outside the rotating lead screw, and a mounting long plate is arranged on the upper surface of the Y-axis ball base, and a product clamping plate is arranged on the upper surface of the mounting long plate.

As a preferred technical scheme of the invention, the product clamping plate comprises an L-shaped fixed plate arranged on the installation long plate, a movable clamping plate is further arranged on a bottom plate of the L-shaped fixed plate, a limiting groove is formed in the lower surface of the L-shaped fixed plate, a limiting slider placed in the limiting groove is arranged on the lower surface of the movable clamping plate, a clamping bearing protrusion is further arranged on the inner surface of the movable clamping plate, the clamping bearing protrusion is connected with a rotating bolt, and a threaded hole matched with the rotating bolt is formed in the movable clamping plate.

As a preferable technical scheme, two side faces of the L-shaped fixed plate are hinged with limit connecting blocks, a plurality of evenly distributed U-shaped buckles are arranged on the limit connecting blocks, and clamping side upright columns matched with the U-shaped buckles are arranged on the movable clamping plate.

According to a preferable technical scheme, the trimming and polishing mechanism comprises a sliding hole groove arranged in an upper plate of the C-shaped supporting plate frame, the lower end of the sliding hole groove is further connected with a vertical through hole, a vertical long plate capable of moving up and down is arranged in the sliding hole groove, the lower surface of the vertical long plate is connected with a first vertical long rod penetrating through the vertical through hole, the tail end of the first vertical long rod is connected with a third driving motor, the rotating shaft of the third driving motor is connected with a cavity external connecting cylinder, and the cavity external connecting cylinder is connected with a polishing and trimming disk.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the flowing rubber material and the polyurethane material are mixed, and the rubber and the polyurethane material are uniformly stirred and hammered, so that mutual fusion of the rubber and the polyurethane is increased, the complementation of advantages and disadvantages of the materials is realized, the rubber-polyurethane composite product with good elasticity, high solvent resistance, high water resistance and high fire resistance is obtained, the service life is long, and the application range is wide;

(2) the multifunctional material mixing device is used, rubber product manufacturing, polyurethane product manufacturing and rubber-polyurethane composite material manufacturing are integrated, an integrated multifunctional integrated device is realized, and the transfer times of materials are reduced, so that the working efficiency is improved, the heat waste is reduced, and the manufacturing cost of composite products is reduced;

(3) the heating mechanism and the cooling mechanism are added in the product mold, the heating mechanism is utilized to prevent the product from cracking caused by rapid cooling, the product quality is improved, and the cooling mechanism is utilized to accelerate the shaping of the product, so that the production rate is improved, in addition, the occupied space is small, the rigidity damage to the mold is small, and the service life of the mold can be prolonged;

(4) the processing and trimming device can clamp products with different sizes, can polish the side surfaces, the upper surfaces and the lower surfaces of the products, is high in polishing precision, improves the using range, is easy to operate, can realize high self-compensation of the polishing disc, and can avoid damage to the products in the polishing process, and the products have concave-convex characteristics.

Drawings

FIG. 1 is a flow diagram of the overall preparation of the present invention;

FIG. 2 is a schematic view of the rubber melting mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a two-stage extrusion mechanism according to the present invention;

FIG. 4 is a schematic structural diagram of a preheating and cooling combination mechanism according to the present invention;

FIG. 5 is a schematic structural diagram of the preheating mechanism of the present invention;

FIG. 6 is a schematic view of the cooling mechanism of the present invention;

FIG. 7 is a schematic view of the overall construction of the trimming and grinding mechanism of the present invention;

FIG. 8 is a schematic view of the product clamping mechanism of the present invention;

FIG. 9 is a schematic view of a product cleat of the present invention;

reference numbers in the figures:

1-a rubber melting mechanism; 2-a polyurethane melting mechanism; 3-a secondary extrusion mechanism; 4-fixing a template; 5-fixing a template; 6-preheating and cooling combination mechanism; 7-preheating mechanism; 8-a cooling mechanism; 9-trimming and polishing mechanism;

101-double-layer mixing and melting cylinder; 102-a screw rod; 103-a first drive motor; 104-polishing the heat insulation board; 105-a heating resistor;

301-a secondary support frame; 302-a circular truncated cone extrusion forming cylinder; 303-a stirring mechanism; 304-a hammering mechanism; 305-a heating and heat-preserving mechanism;

3031-a second drive motor; 3032-rotating the rods; 3033-radial socket joint; 3034-tilting the stirring rod; 3035-moving the push plate; 3036-sliding sleeve shaft with hollow cavity; 3037-linear motor; 3038-displacing the screw;

3041-a push cylinder; 3042-a force-applying rod; 3043-vertical rod; 3044-extruding the hammer head;

3051-polishing the inner metal shell; 3052-spiral heating wire;

601-a mounting channel; 602-positioning a slot plate; 603-thermoelectric cooling fins; 604-heating end; 605-cooling end;

701-a three-dimensional channel; 702-pulling and installing the plate; 703-moving the slider; 704-a sliding track; 705-heating the lamp tube; 706-soaking plate; 707-heat insulation plate; 708-stripping and perforating;

801-main water pipe channel; 802-branch channel; 803-main cooling water pipe; 804-a water separator; 805-equal distribution water pipes;

901-sliding hole slot; 902-vertical perforation; 903-vertical long plate; 905-a third drive motor; 906-a cavity external barrel; 907-polishing trimming disc

A 1001-C support frame; 1002-X axis slide mount; 1003-a first servomotor; 1004-rotating the lead screw; 1005-X axis ball mount; 1006-Y axis motion base; 1007-a second drive motor; 1008-Y axis ball bearings base; 1009-mounting a long plate;

1101-L shaped fixed plate; 1102-moving the clamping plate; 1103 — defining a recess; 1104-defining a slider; 1105 clamping the load bearing protrusion; 1106-turning the bolt; 1107-limit connecting blocks; 1108-U-shaped fasteners; 1109-locking side column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 1:

as shown in the attached figure 1, the invention provides a preparation method of a rubber-polyurethane composite product, which comprises the following steps:

the rubber material components are cut and crushed, the crushed rubber material is melted in a segmented temperature environment, the additives are mixed and proportioned in the melted rubber material through a dropping method, and the mixture is uniformly stirred and extruded to obtain a rubber finished product.

It should be added that, in the present invention, the additive comprises 10-15 wt% of accelerator, 15-30 wt% of colorant, 10-25 wt% of zinc oxide, 25-40 wt% of foaming agent and 5-10 wt% of filler, and the rubber raw material is at least one of thermoplastic rubber, ethylene-vinyl acetate copolymer, polyethylene, polypropylene and styrene.

And secondly, cutting and crushing the polyurethane raw material, melting the crushed polyurethane raw material in a segmented temperature environment, mixing and proportioning the accelerator in the molten polyurethane raw material by a dropping method, and uniformly stirring and extruding to obtain a polyurethane finished product.

In the invention, it is further illustrated that the accelerator comprises 20-30 wt% of amine chain extender, 30-50 wt% of foaming agent and 15-35 wt% of tertiary amine catalyst, and other auxiliary materials such as antioxidant or plasticizer can be added, and the polyurethane raw material can be isocyanate, oligomer polyol and polyester polyol combination.

In the first step and the second step, the segmented temperature can be divided into an initial preheating temperature, a middle melting temperature and a later holding temperature, the initial preheating temperature is set in the cutting stage of the rubber raw material and the polyurethane raw material, the heating temperature of the initial preheating temperature is 60-65 ℃, and preheating and drying are mainly carried out on the rubber raw material and the polyurethane raw material, so that the speed of the middle melting can be accelerated, the molecular damage of severe high temperature to the rubber raw material and the polyurethane raw material can be reduced, and the product quality is improved.

The middle melting temperature is set in the melting stage of the rubber raw material and the polyurethane raw material, the heating temperature of the middle melting temperature is 130-150 ℃, the rubber raw material and the polyurethane raw material are respectively melted, meanwhile, the auxiliary additive is added in the middle melting temperature, and the melted rubber raw material and the melted polyurethane raw material are respectively subjected to performance processing.

The later-stage holding temperature is set in the extrusion stage of the rubber raw material and the polyurethane raw material, the heating temperature of the later-stage holding temperature is specifically 90-100 ℃, and the later-stage holding temperature is mainly used for keeping the fluidity of the rubber raw material and the polyurethane raw material during melting, so that the later-stage injection molding treatment is facilitated.

In the first step and the second step, the drop method mixing raw materials and additives (or accelerators) comprises the following steps:

firstly, dividing the additive (or the accelerant) into a plurality of equal parts, and adding the additive for a plurality of times, so that the stirring uniformity of the additive and the molten rubber raw material or polyurethane raw material can be improved;

secondly, after each part of additive (or accelerant) is added with the molten rubber raw material or polyurethane raw material, the mixture is fully stirred for a certain time, and then the next part is added, and each part of additive (or accelerant) is stirred with the rubber raw material or polyurethane raw material for a certain time, so that the action effect of the additive can be improved.

Finally, after a plurality of equal parts of additives (or accelerators) are completely added, the mixture is fully stirred for a certain time, and a rubber finished product or a polyurethane finished product is extruded, so that the action time of the additives (or accelerators) is prolonged, and the performance stability of the rubber finished product or the polyurethane finished product is further improved.

In the first step and the second step, the high-temperature resistant polyester fiber or nylon fiber serving as a framework material is added in the molten rubber raw material and polyurethane raw material, so that the toughness of the rubber raw material and the polyurethane raw material can be improved, and fine grain fracture is prevented.

And thirdly, mixing the rubber finished product and the polyurethane finished product according to a proportion to form a rubber-polyurethane composite material, stirring the rubber-polyurethane composite material in a heat insulation cavity, extruding the rubber-polyurethane composite material by a hammering method while stirring, adding an auxiliary catalyst in proportion while stirring and extruding, mixing and stirring the flowing hot rubber finished product and the polyurethane finished product obtained in the first step and the second step according to the proportion, hammering the mixed rubber-polyurethane material simultaneously to improve the elasticity of the rubber-polyurethane material, and simultaneously enabling the rubber-polyurethane material to be stirred intensively more uniformly, wherein the catalyst can improve the speed of rubber-polyurethane mixing reaction and accelerate the uniform fusion of the rubber-polyurethane material.

The temperature for mixing and stirring the rubber-polyurethane composite material is within 90-100 ℃, and the stirring and hammering are carried out for 15-20 min, so that the fluidity of the rubber-polyurethane composite material during uniform stirring is ensured, and the uniformity is improved.

And fourthly, heating and vulcanizing the rubber-polyurethane composite material which is stirred and extruded in the third step, wherein vulcanization is also called crosslinking and curing. That is, crosslinking assistant such as vulcanizing agent and accelerator is added into rubber, and the process of converting linear macromolecules into three-dimensional network structure under the condition of certain temperature and pressure can change the defects of low inherent strength, small elasticity, cold and hard hot adhesion, easy aging and the like of the material, obviously improve the aspects of wear resistance, swelling resistance, heat resistance and the like, and expand the application range.

It should be noted that the time taken for the vulcanization treatment is 350s to 360 s.

And fifthly, performing sectional preheating treatment on a product mold, filling the mold with the flowing rubber-polyurethane composite material, then stamping, cooling the product mold by using multi-way cooling, simultaneously shaping the product, removing the material of the shaped product, and comparing and polishing the rubber-polyurethane composite material product and the standard product by using a standard comparison method to realize trimming and fine treatment.

The rubber-polyurethane material is subjected to injection molding and shaping to obtain a rubber-polyurethane product, and the product is trimmed and polished to obtain a standard product, so that the yield of the product is improved.

In the fifth step, the temperature for carrying out the sectional heat treatment on the product mold is respectively 30-65 ℃ of the initial slow heating temperature, 65-100 ℃ of the middle heating temperature and 100-120 ℃ of the later stable high temperature, and the expansion and contraction effect of the mold can be reduced by the sectional and speed-division heating, so that the service life of the product mold is prolonged.

The cooling mode of the product mold can be water cooling and air cooling, the product mold cooling is also a sectional cooling mode, and the lowest cooling temperature of the product mold is 30-35 ℃.

In summary, the method has the main technical characteristics that: the preparation method comprises the steps of firstly respectively heating and extruding to prepare the rubber material and the polyurethane material, and then mixing and stirring the flowing rubber material and the polyurethane material, so that the rubber-polyurethane composite product has the performance of the rubber material and the functions of the polyurethane material, namely, the rubber-polyurethane composite product has good wear resistance, high elasticity, tensile strength and elongation, excellent shock absorption and skid resistance, good temperature resistance, good chemical resistance, acid and alkali resistance, long service life and wide application range.

Example 2:

based on the preparation method, the invention also provides a preparation device of the rubber-polyurethane composite product, and the preparation device consists of a multifunctional mixing device, a product mold and processing and trimming equipment. The multifunctional mixing device is mainly used for obtaining a rubber finished product and a polyurethane finished product, then stirring and hammering the rubber finished product and the polyurethane finished product to obtain a rubber-polyurethane composite material, extruding the rubber-polyurethane composite material into a product mold for stamping and shaping, and demolding and trimming the shaped product to obtain a complete rubber-polyurethane composite product.

As shown in the attached fig. 2, the multifunctional mixing device comprises a rubber melting mechanism 1 and a polyurethane melting mechanism 2, wherein the rubber melting mechanism 1 and the polyurethane melting mechanism 2 are jointly connected with a secondary extrusion mechanism 3, that is, the melted rubber material and the melted polyurethane material are extruded in proportion and are jointly mixed in the secondary extrusion mechanism 3, so that the flowing rubber-polyurethane composite material is obtained.

Wherein the rubber material and the polyurethane material can be 1-1. 5, the rubber-polyurethane composite material has the dual performance of rubber and polyurethane.

Rubber melting mechanism 1 and polyurethane melting mechanism 2 all include double-deck compounding and melt a section 101 to and set up at the inside hob 102 of double-deck compounding melting section 101, hob 102 is connected with first driving motor 103, hob 102 divide into broken section, melts the section and extrudes the section, and first driving motor 103 drives hob 102 rotary motion, and thus constantly remove the extrusion mouth with rubber feedstock or polyurethane raw materials from the raw materials entry to rubber feedstock or polyurethane raw materials preheat at broken section and smash, are heated in melting the section and melt, are the heat preservation state that flows at the extruded section of melting rubber finished product and the polyurethane finished product of extruding.

A plurality of groups of polishing heat-insulation plates 104 which are distributed at equal intervals are arranged between the double-layer interlayers of the double-layer mixed material melting cylinder 101, and each group of polishing heat-insulation plates 104 is internally provided with a heating resistor 105. it should be further described that the heating temperature of the heating resistor 105 in the crushing section is low, the heating temperature in the melting section is highest, and the heating temperature in the extrusion section can keep the molten flow state of the rubber finished product and the polyurethane finished product.

The second-stage extrusion mechanism 3 comprises a second-stage supporting frame 301 and a circular truncated cone extrusion molding cylinder 302 arranged inside the second-stage supporting frame 301, a stirring mechanism 303 and a hammering mechanism 304 are arranged in the circular truncated cone extrusion molding cylinder 302, and the second-stage extrusion mechanism 3 is used for stirring and hammering a rubber finished product and a polyurethane finished product, so that the elasticity and the wear resistance of the rubber-polyurethane composite product are improved.

The two sides of the upper end of the circular truncated cone extrusion molding cylinder 302 are connected with the double-layer material mixing melting cylinder 101, the stirring mechanism 303 comprises a second driving motor 3031 arranged below the circular truncated cone extrusion molding cylinder 302, the second driving motor 3031 is connected with a rotating rod 3032, a radial receiving rod 3033 is sleeved on the outer side of the rotating rod 3032, an inclined stirring rod 3034 is arranged on each radial receiving rod 3033, and the second driving motor 3031 drives the radial receiving rod 3033 and the inclined stirring rod 3034 to rotate and stir through the rotating rod 3032, so that the rubber finished product and the polyurethane finished product in the circular truncated cone extrusion molding cylinder 302 are uniformly stirred.

As shown in fig. 3, a moving push plate 3035 is further disposed below the second driving motor 3031, a plurality of cavity sliding sleeve shafts 3036 sleeved on the secondary support frame 301 are disposed at the edge of the moving push plate 3035, a linear motor 3037 is fixedly disposed below the moving push plate 3035, the linear motor 3037 is connected to the lower surface of the moving push plate 3035 through a displacement screw 3038, and the linear motor 3037 can push the moving push plate 3035 to move up and down, so that the rubber finished product and the polyurethane finished product inside the circular truncated cone extrusion molding cylinder 302 are uniformly stirred up and down, the uniformity during stirring is improved, the rubber finished product and the polyurethane finished product are completely fused, and the performance of the rubber-polyurethane composite product is further improved.

The inner surface of the circular truncated cone extrusion molding cylinder 302 is provided with a heating and heat-insulating mechanism 305, the heating and heat-insulating mechanism 305 comprises a plurality of polished metal inner shells 3051 which are uniformly arranged on the inner wall of the circular truncated cone extrusion molding cylinder 302, a plurality of spiral heating wires 3052 are arranged between the polished metal inner shells 3051 and the inner wall of the circular truncated cone extrusion molding cylinder 302, and the heating and heat-insulating mechanism 305 aims to keep the flowability of the rubber-polyurethane composite material in the circular truncated cone extrusion molding cylinder 302 and reversely facilitate the homogenization stirring treatment.

It should be added that the temperature of the rubber-polyurethane composite material in the circular truncated cone extrusion molding cylinder 302 is maintained at 90-100 ℃.

The hammering mechanism 304 comprises a pushing cylinder 3041 arranged outside the circular truncated cone extrusion molding cylinder 302, the edge of the circular truncated cone extrusion molding cylinder 302 is hinged with a force application rod 3042, the tail end of the force application rod 3042 is hinged with a vertical upright rod 3043, the other end of the force application rod 3042 is fixedly connected with a telescopic rod of the pushing cylinder 3041, and the lowest end of the vertical upright rod 3043 is provided with an extrusion hammer head 3044.

The specific mode of the hammering work is as follows:

the pushing cylinder 3041 acts on the outer side of the force application rod 3042, and when the telescopic rod of the pushing cylinder 3041 makes an up-and-down telescopic motion, the force application rod 3042 hinged to the edge of the circular truncated cone extrusion molding cylinder 302 can be driven to rotate at a certain angle, so that the vertical upright rod 3043 positioned on the inner side of the force application rod 3042 vertically moves up and down, and the rubber-polyurethane composite material is cyclically and periodically hammered, thereby improving the flexibility and elasticity of the rubber-polyurethane composite material.

The multifunctional mixing device integrates rubber product manufacturing, polyurethane product manufacturing and rubber-polyurethane composite material manufacturing, realizes an integrated multifunctional integrated device, and reduces the transfer times of materials, thereby improving the working efficiency, reducing the heat waste and reducing the manufacturing cost of composite products.

As shown in fig. 4, the product mold comprises a fixed mold plate 4 and a movable mold plate 5, wherein both the fixed mold plate 4 and the movable mold plate 5 are provided with a shaping mold cavity, a preheating and cooling combination mechanism 6 is arranged inside the fixed mold plate 4, a preheating mechanism 7 and a cooling mechanism 8 are arranged inside the movable mold plate 5, the preheating and cooling combination mechanism 6 can heat the fixed mold plate 4 and can also cool the fixed mold plate 4, the fixed mold plate 4 and the movable mold plate 5 are heated to maintain the fluidity of the material, prevent the product from cracking due to rapid cooling, improve the product quality, and the fixed mold plate 4 and the movable mold plate 5 are cooled to accelerate the shaping of the product, thereby improving the production rate.

The preheating and cooling combination mechanism 6 comprises two mounting channels 601 arranged inside the fixed die plate 4 and a positioning slot plate 602 arranged in the mounting channels 601, thermoelectric refrigeration sheets 603 arranged in a mutually crossed manner are arranged on the positioning slot plate 602, the thermoelectric refrigeration sheets 603 are divided into a heating end 604 and a cooling end 605, and the heating end 604 is arranged on the inner surface of the positioning slot plate 602 in a facing manner.

It should be added that the thermoelectric cooling plate 603 is specifically a semiconductor cooling plate, and the cooling principle is that by using the Peltier effect of semiconductor materials, when direct current passes through a couple formed by connecting two different semiconductor materials in series, heat can be absorbed and released at two ends of the couple respectively, so as to achieve the purpose of cooling.

In the invention, the heating end 604 of the thermoelectric refrigeration piece 603 is installed on the inner surface of the positioning slot plate 602 in a facing manner, and is connected with the thermoelectric refrigeration piece 603 on the positioning slot plate 602 close to the shaping mold cavity during preheating, the heating end 604 performs heating work, and is connected with the thermoelectric refrigeration piece 603 on the positioning slot plate 602 far away from the shaping mold cavity during cooling, and the cooling end 605 performs cooling work on the shaping mold cavity, so that the preheating and cooling combination mechanism 6 can realize the preheating effect as a whole, can also realize the cooling effect, occupies a small space, has good preheating and cooling effects, has small rigid damage to the fixed mold plate 4, and can prolong the service life of the fixed mold plate 4.

As shown in fig. 5, the preheating mechanism 7 includes a three-dimensional channel 701 disposed inside the movable mold plate 5, and a pulling plate 702 disposed inside the three-dimensional channel 701, a movable slider 703 is disposed on an upper surface of the pulling plate 702, a sliding track 704 matched with the movable slider 703 is disposed in the three-dimensional channel 701, and the pulling plate 702 can freely enter and exit in the three-dimensional channel 701 through the movable slider 703, so that the whole preheating mechanism 7 is conveniently maintained, and the use convenience, the operation is simple, and the maintenance is convenient.

The utility model discloses a mould, including pulling dress board 702, be equipped with a plurality of groups equidistant distribution's heating fluorescent tube 705 on pulling dress board 702, three-dimensional channel 701 is equipped with soaking board 706 on the surface that is close to the design die cavity, other of three-dimensional channel 701 are equipped with heat insulating board 707 on the surface, pulling dress board 702 all is equipped with between adjacent two sets of heating fluorescent tube 705 takes off material perforation 708, and heating fluorescent tube 705 heats movable mould board 5, and soaking board 706 can improve the homogeneity of temperature, prevents to decide the temperature inequality in the model cavity, improves production quality, the reducible calorific loss of heat insulating board 707.

The stripping perforation 708 facilitates the stripping process without affecting the normal use of the preheating mechanism 7.

As shown in fig. 6, cooling body 8 is including setting up the main water pipe channel 801 at both ends about movable mould board 5, main water pipe channel 801 is connected with a plurality of evenly distributed's branch pipe channel 802, main water pipe channel 801 is equipped with main cooling water pipe 803, main cooling water pipe 803 is connected with a plurality of evenly distributed's equal distribution pipe 805 through water knockout drum 804, it corresponds the setting respectively in minute pipe channel 802 to divide water pipe 805 equally, uses water-cooling to cool off movable mould board 5, through a plurality of combined action of dividing water pipe 805 equally, can improve refrigerated efficiency, improves the whole homogeneity of goods when cooling simultaneously, prevents that the goods surface from because the uneven inflation or reducing the sunkenly that causes of cooling to improve product quality.

As shown in fig. 7 and 8, in addition, the machining and trimming device includes an edge-trimming and grinding mechanism 9 and a product clamping mechanism for clamping a product and performing a grinding and trimming operation by the edge-trimming and grinding mechanism 9.

The product clamping mechanism comprises a C-shaped support plate frame 1001 and two X-axis sliding bases 1002, wherein the lower plate of the C-shaped support plate frame 1001 is arranged on each X-axis sliding base 1002, a first servo motor 1003 is further arranged inside each X-axis sliding base 1002, each first servo motor 1003 is connected with a rotating lead screw 1004 arranged between the two X-axis sliding bases 1002, an X-axis ball base 1005 is arranged outside each rotating lead screw 1004 in a sleeved mode, each first servo motor 1003 drives the rotating lead screw 1004 to rotate, and therefore the X-axis ball bases 1005 can translate on the rotating lead screws 1004 in the X-axis direction.

The upper end of X axle ball base 1005 is equipped with Y axle and removes base 1006, the inside of Y axle removes base 1006 is equipped with second driving motor 1007, second driving motor 1007 also is connected with the rotation lead screw 1004 that sets up in Y axle removes the inside of base 1006, it is equipped with Y axle ball base 1008 still to overlap outside the rotation lead screw 1004, the upper surface of Y axle ball base 1008 is equipped with installation long board 1009, Y axle removes base 1006 on X axle ball base 1005, can remove along the X axle, and Y axle ball base 1008 on Y axle removes base 1006 can be under second driving motor 1007 and rotation lead screw 1004's effect, along Y axle translation to installation long board 1009 then both can remove in X axle direction, can remove in Y axle direction again, is convenient for polish new product comprehensively.

As shown in fig. 9, a product clamp plate is arranged on the upper surface of the long mounting plate 1009, the product clamp plate includes an L-shaped fixed plate 1101 arranged on the long mounting plate 1009, a movable clamp plate 1102 is further arranged on the bottom plate of the L-shaped fixed plate 1101, a limiting groove 1103 is arranged on the lower surface of the L-shaped fixed plate 1101, a limiting slider 1104 placed inside the limiting groove 1103 is arranged on the lower surface of the movable clamp plate 1102, and the lower surface of the movable clamp plate 1102 moves in the limiting groove 1103 through the limiting slider 1104, so that the movement is stable, the limiting movement can be effectively performed, and the stable translation operation of the movable clamp plate 1102 is realized.

The inner surface of the movable clamping plate 1102 is further provided with a clamping bearing bulge 1105, the clamping bearing bulge 1105 is connected with a rotating bolt 1106, a threaded hole matched with the rotating bolt 1106 is formed in the movable clamping plate 1102, the rotating bolt 1106 is engaged with the threaded hole in the movable clamping plate 1102 in a threaded manner, so that the rotating bolt can rotate and extrude in the movable clamping plate 1102, a mounting groove is formed in the clamping bearing bulge 1105, the tail end of the rotating bolt 1106 can rotate in the mounting groove, the clamping bearing bulge 1105 can move horizontally along the Y axis, and products between the clamping bearing bulge 1105 and the L-shaped fixed plate 1101 can be fixed.

Two sides of board 1101 are decided to L shape still articulate there is spacing connecting block 1107, be equipped with a plurality of evenly distributed's U-shaped buckle 1108 on the spacing connecting block 1107, be equipped with the card side post 1109 that matches with U-shaped buckle 1108 on the removal splint 1102, spacing connecting block 1107 limits the position of removal splint 1102 through U-shaped buckle 1108 and card side post 1109, and then the space size between the board 1101 is decided to adjustment card bearing protrusion 1105 and L shape, thereby can carry out the centre gripping to not unidimensional product, and both can carry out the centre gripping to the plane of product, also can carry out the centre gripping to the side of product, the scope of use is improved, and also be convenient for operate and use, convenient to use, easy operation.

As shown in fig. 7, the trimming and polishing mechanism 9 includes a sliding hole groove 901 disposed inside an upper plate of a C-shaped support plate frame 1001, a vertical through hole 902 is further connected to a lower end of the sliding hole groove 901, a vertical long plate 903 capable of moving up and down is disposed inside the sliding hole groove 901, a first vertical long rod penetrating through the vertical through hole 902 is connected to a lower surface of the vertical long plate 903, and the vertical long plate 903 is capable of moving up and down inside the sliding hole groove 901, so that self-adjustment processing of polishing positions is achieved.

The end connection of first perpendicular stock has third driving motor 905, the rotation axis connection of third driving motor 905 has the external section of thick bamboo 906 of cavity, the external section of thick bamboo 906 of cavity is connected with edging dish 907 of polishing, and when using, edging dish 907 of polishing is when the pivoted, polish the product to if there is the inequality on product surface itself, vertical long slab 903 can reciprocate in sliding hole groove 901, thereby realize the high self-compensation of edging dish 908 of polishing, the scope during use is wide, and can avoid damaging product self and have unsmooth characteristic at the in-process of polishing.

The specific use process of the processing and trimming device is as follows:

1. firstly, adjusting the position of the movable clamping plate 1102, rotating the limiting connecting block 1107, fixing the corresponding U-shaped buckle 1108 on the clamping side upright post 1109, and then arranging the rubber-polyurethane composite product between the L-shaped fixed plate 1101 and the movable clamping plate 1102;

2. rotating the rotating bolt 1106 to translate the clamping bearing bulge 1105 along the Y axis and fix the product between the clamping bearing bulge 1105 and the L-shaped fixed plate 1101;

3. when the product is fixed, the polishing and trimming disc 907 is jacked up until the vertical long plate 903 reaches the uppermost end of the sliding hole groove 901;

4. when the first servo motor 1003 and the third driving motor 905 are started, the product moves in the X-axis direction, and meanwhile, the third driving motor 905 drives the polishing and trimming disk 907 to polish the product.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (3)

1. The processing and trimming equipment for the rubber-polyurethane composite product is characterized in that: the processing and trimming device comprises a trimming and grinding mechanism (9) and a product clamping mechanism, wherein the product clamping mechanism comprises a C-shaped supporting plate frame (1001) and two X-axis sliding bases (1002) which are provided with lower plates of the C-shaped supporting plate frame (1001), a first servo motor (1003) is further arranged inside one X-axis sliding base (1002), the first servo motor (1003) is connected with a rotating lead screw (1004) which is arranged between the two X-axis sliding bases (1002), an X-axis ball base (1005) is sleeved outside the rotating lead screw (1004), a Y-axis moving base (1006) is arranged at the upper end of the X-axis ball base (1005), a second driving motor (1007) is arranged inside the Y-axis moving base (1006), the second driving motor (1007) is also connected with the rotating lead screw (1004) which is arranged inside the Y-axis moving base (1006), and a Y-axis ball base (1008) is sleeved outside the rotating lead screw (1004), a long mounting plate (1009) is arranged on the upper surface of the Y-axis ball base (1008), and a product clamping plate is arranged on the upper surface of the long mounting plate (1009);

the trimming and polishing mechanism (9) comprises a sliding hole groove (901) arranged inside an upper plate of a C-shaped supporting plate frame (1001), the lower end of the sliding hole groove (901) is further connected with a vertical through hole (902), a vertical long plate (903) capable of moving up and down is arranged inside the sliding hole groove (901), the lower surface of the vertical long plate (903) is connected with a first vertical long rod penetrating through the vertical through hole (902), the tail end of the first vertical long rod is connected with a third driving motor (905), a cavity extension tube (906) is connected to a rotating shaft of the third driving motor (905), and the cavity extension tube (906) is connected with a polishing trimming plate (907).

2. The apparatus for processing and trimming rubber-polyurethane composite products according to claim 1, wherein: the product splint are including setting up L shape fixed plate (1101) on installation long plate (1009), still be equipped with movable splint (1102) on the bottom plate of L shape fixed plate (1101), the lower surface of L shape fixed plate (1101) is equipped with limited recess (1103), the lower surface of movable splint (1102) is equipped with places at the inside limited slider (1104) of limited recess (1103), the internal surface of movable splint (1102) still is equipped with the protruding (1105) of card fixing bearing, the protruding (1105) of card fixing bearing is connected with rotating bolt (1106), the inside of movable splint (1102) is equipped with the screw hole that matches with rotating bolt (1106).

3. The apparatus for processing and trimming rubber-polyurethane composite products according to claim 2, wherein: two sides of L shape decide board (1101) still articulate there are spacing connecting block (1107), be equipped with a plurality of evenly distributed's U-shaped buckle (1108) on spacing connecting block (1107), be equipped with the card side column (1109) that matches with U-shaped buckle (1108) on the both sides face of removal splint (1102).

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