CN110587890B - Longitudinal and transverse synchronous stretching calender - Google Patents

Abstract

The invention discloses a longitudinal and transverse synchronous stretching calender, which belongs to the technical field of calenders and comprises: the frame, the conveying roller set includes the motor of first calendering subassembly, second calendering subassembly and each roller of drive conveying roller set, and first calendering subassembly includes: axle center level position is by high to low first calendering roller, second calendering roller and the third calendering roller of arranging in proper order, forms feed port between first calendering roller and the second calendering roller, and feed port one side is equipped with the discharge gate of extruder, and the second calendering subassembly includes: the horizontal heights of the axes are consistent, and the axes are sequentially arranged from left to right, the horizontal heights of the axes of the fourth calendering roller and the third calendering roller are consistent, the track of the connecting line of the axes of the rollers of the first calendering component and the second calendering component is L-shaped, and the transmission speed of the second calendering component is lower than that of the first calendering component. The method overcomes the problem of adhesion between the rolled material and the rolling roller in the rolling process, and simultaneously effectively improves the tensile strength of the material obtained by rolling.

Description

Longitudinal and transverse synchronous stretching calender

Technical Field

The invention belongs to the technical field of calenders, and particularly relates to a longitudinal and transverse synchronous stretching calender.

Background

The calender is a machine which is composed of two or more rollers arranged in a certain form, and is used for pressing and stretching rubber or plastic into a film with a certain thickness and surface shape at a certain temperature and can be used for rubberizing fiber curtain canvas or steel cord fabric. Current calender generally is two rollers, three-roller, four rollers and five rollers calender, but these calenders can only process the product that thickness is little, and surface quality is lower, can't satisfy higher and higher product requirement, and a small amount of six rollers calender performance on the market is poor, also can't satisfy the product requirement.

Disclosure of Invention

The invention aims to provide a longitudinal and transverse synchronous stretching calender, which designs a calendering part, sets the transmission speed of the calendering part, and is matched with an extruder to feed quickly, overcomes the problem of adhesion between a calendered material and a calendering roller in the calendering process, and simultaneously effectively improves the tensile strength of the material obtained by calendering.

The technical scheme adopted by the invention for realizing the purpose is as follows: a synchronous longitudinal and transverse stretching calender comprising: a frame, a conveying roller set arranged on the frame and used for conveying and calendering materials, wherein the conveying roller set comprises a first calendering component and a second calendering component, a motor used for driving each roller of the first calendering component and the second calendering component is arranged on the frame,

the first calendaring assembly includes: a first calendering roller which is arranged at one side of the frame, a second calendering roller with the axis in the same vertical plane is arranged right below the first calendering roller, a feeding port is formed between the first calendering roller and the second calendering roller, a discharging port of an extruder is arranged at one side of the feeding port, a third calendering roller with the axis in the same vertical plane is arranged right below the second calendering roller,

the second calendaring assembly comprises: a fourth calendering roller, the horizontal height position of the axle center of the fourth calendering roller is consistent with that of the axle center of the third calendering roller, a fifth calendering roller with the axle center of consistent horizontal height is arranged at one side of the fourth calendering roller, a sixth calendering roller is arranged in the discharging direction of the fifth calendering roller for calendering materials,

wherein, the track of the connecting line of the axle centers of the rollers of the first calendering component and the second calendering component forms an L shape, gaps with consistent space are reserved between the rollers of the first calendering component and the second calendering component for calendering and transmitting materials,

wherein, the transmission speed of each roller of the second calendering component is lower than that of each roller of the first calendering component.

The invention carries out calendering treatment on raw materials by selecting a mode of forming a conveying roller set by six rollers, and further divides the transmission of the six rollers into a first calendering component and a second calendering component, which is used for ensuring that the material passes through a calender in two roller sets in the calendering process and the vibration generated by calendering is small, improving the use effect of calendering equipment and improving the calendering process range of the calendered material, compared with the existing four-roller calender, the invention can homogenize the calendering stress of the calendering rollers by arranging the six rollers, can realize the pressing of 1.0-1.4 mm thick sheet materials, can improve the production speed by 30-35%, and the six rollers have transmission speed difference and simultaneously increase the calendering contact surface, thus being beneficial to eliminating the water ripple on the surface of the calendered product, and being specific: according to the invention, the first rolling component and the second rolling component are arranged into an L shape, and the first rolling component and the second rolling component have a conveying speed difference, so that the material is rolled and stretched in the length direction when the raw material passes through the first rolling component arranged vertically, and the material is stretched in the width direction through the second rolling component, so that the rolled material is subjected to grading treatment and reduced in rolling.

The ratio of the transmission speed of each roller of the second calendering component to the transmission speed of each roller of the first calendering component is 1: 1.1-1.5. The invention arranges the rollers of the first rolling component in a vertical arrangement mode, arranges the rollers of the second rolling component in a horizontal linear arrangement direction to form an L-shaped conveying roller set, and only sets the ratio of the transmission speed of the rollers of the second rolling component to the transmission speed of the rollers of the first rolling component to be 1: 1.1-1.5, aiming at ensuring that the transmission speed of the rollers of the second rolling component is lower than that of the rollers of the first rolling component, the rotation speed of the rollers of the first rolling component can not be higher than 1.5 times of that of the rollers of the second rolling component, the deformation and fracture probability of the rolled material can be greatly increased after the rotation speed of the rollers of the first rolling component is measured and is higher than that of the rollers of the second rolling component, and the raw material is rolled by the first rolling component, because the transmission speed of each roller of the first calendering component is higher to carry out the calendering process on the calendered material to form the stretching effect, and the rotating speed of each roller of the second calendering component arranged behind the calendering process is lower than that of each roller of the first calendering component, the material on the first calendering component can not generate excessively strong pulling force, the calendered material is prevented from being broken in the process of being transmitted from the first calendering component to the second calendering component, and the transmission speed of each roller of the second calendering component is lower than that of each roller of the first calendering component to reduce the transmission speed of the material on the second calendering component, the width direction of the calendered material can be widened, the first calendering component is used for carrying out the calendering treatment on the calendered material in the length direction, and the second calendering component is used for carrying out the grading treatment on the calendered material in the width direction to calender the calendered material, compared with the conventional mode of equalizing speed of each roller, the rolling mode of the invention effectively reduces the contact time of the rolled product and air, thereby reducing the temperature influence of air temperature on the rolled material, reducing the occurrence of water ripples on the surface of the rolled product, and avoiding the occurrence of the conditions of strength reduction and fracture of the rolled material in the rolling and stretching.

Optionally, each roller of the first rolling assembly and the second rolling assembly is provided with a roller distance adjusting device for adjusting the distance between adjacent rollers. The arrangement of the roller distance adjusting device is used for adjusting the position distance of each roller axis relative to the adjacent roller axis, so that the thickness of the pressed material can be adjusted and controlled, and the distance between the rollers is ensured to be within a set range, so that the water ripple phenomenon on the surface of the rolled product can be further reduced when the rolling stroke is reduced by effectively reducing the rolling stroke.

Optionally, a magnetic drive assembly is arranged above the first rolling roller and comprises a fixed iron plate fixed with the frame, an electromagnet is installed on the bottom surface of the fixed iron plate, the bottom surface of the electromagnet is an inwards concave arc-shaped surface, and the distance between the arc surface of the electromagnet and the outer surface of the first rolling roller is controlled within 5 cm. The bottom surface of the electromagnet is arranged to be an inwards concave arc surface, which is beneficial to the magnetic drive to correspond to the surface of the first calendering roller, and the space between the electromagnet and the first calendering roller bracket is controlled to ensure that the magnetic driving force effectively acts on the first calendering roller, the magnetic driving force to the first calendering roller is formed by arranging a magnetic driving component above the first calendering roller, the magnetic assemblies are arranged in the rollers, so that the rotating speed of the rollers can be further improved by the six rollers in a magnetic driving mode on the basis of the rotating speed driven by the motor, and the magnetic driving speed of the first rolling component is higher than that of the second rolling component by utilizing the principle of energy transfer weakening, the transmission speed of the first rolling component is ensured to be higher than that of the second rolling component, thereby improving the rolling and stretching effect of the first rolling component to the length direction of the rolled material and the rolling effect of the second rolling component to the width direction of the rolled material.

Optionally, each roller of the first rolling assembly and the second rolling assembly comprises a first shaft body, a second shaft body and a first connecting body, a cylindrical inner hole is formed in the middle of the second shaft body, the diameter of the first shaft body is smaller than that of the cylindrical inner hole in the middle of the second shaft body, the first shaft body is arranged in the cylindrical inner hole of the second shaft body and is coaxially arranged, and the first shaft body is fixedly connected with the cylindrical inner hole wall of the second shaft body through the first connecting body which is arranged around the outer surface of the first shaft body and has elasticity. First connector is isoprene rubber, first axis body is connected with the motor of drive roller, the mode of driving first axis body rotation through the motor drives the second axis body and comes the rotation to be used for reducing the used energy consumption of drive, there is the clearance to alleviate the weight of whole roller through setting up first axis body and second axis body and both junctions, further reduce the used energy consumption of drive roller rotation, choose for use to have certain elastic first connector to regard as the connecting piece with first axis body and second axis body between fixed, be used for guaranteeing to mangle under the even condition of thickness can be to the vibration absorption that the calendering caused, guarantee that calendering product surface smoothness is high.

Optionally, the internal cylindric magnetic pole that inlays around second axle center setting of second axle, the magnetic pole that inlays in the second axle has two kinds of magnetic forces to the magnetic pole that magnetic force is inequality is crisscross to be encircleed to arrange and locates in the second axle, inlay two adjacent magnetic poles in the second axle and constitute magnetic force component, two magnetic pole magnetic forces of magnetic force component are inequality, be equipped with the magnetic force component of three groups equipartitions in the second axle at least, magnetic force component is the equipartition and encircles and locate in the second axle. The first shaft body is a metal shaft body, the selected magnetic rods are permanent magnets, two magnetic rods with different magnetic forces are adjacently arranged to form a magnetic assembly, the magnetic assembly rotates along with the second shaft body, the magnetic force of the magnetic assembly in the second shaft body and the magnetic assembly in the adjacent second shaft body interact to form alternation in the rotating process, magnetic rod pieces with different magnetic forces in the magnetic assembly are promoted to form hysteresis loss, the permanent magnets are heated, the second shaft body is further heated, particles which are difficult to mould in a rolled material are dissolved, crystal points on the rolled product are reduced, the quality of the rolled product is improved, and meanwhile, the magnetic assembly arranged in the second shaft body can effectively improve the adsorbability between the adjacent second shaft bodies, so that the rolling effect is improved.

Optionally, the discharge port of the extruder comprises:

an extrusion shell body is provided with a material outlet end,

the first conveying unit is arranged in the extrusion shell, the conveying tail end of the first conveying unit is arranged at the material outlet end of the extrusion shell,

the second conveying unit is arranged in parallel with the first conveying unit and is arranged below the first conveying unit, and the conveying tail end of the second conveying unit is arranged corresponding to the conveying tail end of the first conveying unit. The processing raw materials are mixed and heated by the extruder and then extruded, the discharge port of the extruder is arranged at the feeding ports on one sides of the first calendering roller and the second calendering roller of the first calendering assembly, the heated materials are fed into the six-roller calender for calendering treatment, meanwhile, the heated raw materials are conveyed to the outlet end of the extrusion shell by the first conveying unit serving as the raw material conveying unit, the second conveying unit is arranged below the first conveying unit and used for collecting the falling raw materials of the first conveying unit and conveying the falling raw materials to the outlet end of the extrusion shell, the raw materials can be conveyed together by the first conveying unit and the second conveying unit at the same time and used for accelerating the conveying of the raw materials, and the quality of the raw materials conveyed in the mode is high.

Optionally, the first conveying unit is composed of at least two groups of conveying assemblies, the horizontal height positions of the conveying assemblies forming the first conveying unit are consistent,

the second transfer unit is composed of a set of transfer modules,

wherein, the transmission component comprises a transmission belt, a transmission motor and a transmission wheel, two ends of the transmission wheel of the transmission component are connected with a first supporting strip, the first supporting strip is fixedly arranged with the inner wall of the extrusion shell,

wherein, the height position of the conveying wheel of at least one group of conveying assemblies in the first conveying unit can be changed relative to the first supporting bar. The joint of the transmission wheel and the first supporting bar is provided with a motor which can push the transmission wheel to move up and down. The material is conveyed by a conveyor belt which can be made of composite rubber with high temperature resistance, the device is used for avoiding the adhesion phenomenon between raw materials with certain heat and the surface of the conveyor belt, the first conveying unit is provided with at least two conveying components, the raw materials can be conveyed downwards to the second conveying unit in the conveying process of the raw materials on the first conveying unit to form a conversion raw material conveying unit, the device is protected, the flow speed of the raw materials is increased and the raw materials have downward driving force in the process of transferring the raw materials from the first transmission unit to the second transmission unit, so that the raw materials are mutually driven to promote the reduction or disappearance of pores in the raw materials, the possibility of air bubbles in the rolled product is favorably reduced, and the acceleration of the flow velocity of the raw materials can reduce the contact time of the raw materials and the surface of the conveying belt so as to avoid the adhesion of the raw materials and the surface of the conveying belt.

A material pressing method adopting a vertical six-roller calender comprises the following steps:

-subjecting the green compact to an extrusion heating treatment;

-subjecting the extruded and heat treated raw material to a calendering process, wherein the calendering process comprises firstly calendering the material in the length direction and then calendering the material in the width direction;

-cooling the rolled formed material;

and drawing the formed material subjected to the temperature reduction treatment to a winding machine for winding, and trimming the formed material in the drawing process.

The method comprises the steps of heating and extruding raw materials, calendering the raw materials by a calender, calendering and stretching the raw materials in the length direction of the materials when the raw materials pass through a first calendering component arranged vertically, stretching the materials in the width direction of the materials by a second calendering component, grading the calendered materials, reducing the calendering time, improving the quality of the materials obtained by calendering, cooling and trimming the calendered materials, and rolling finished products to finish the preparation of finished products.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the raw material is calendered by selecting a mode of forming the conveying roller set by six rollers, and the transmission of the six rollers is further divided into the first calendering component and the second calendering component, so that the vibration of the material passing through the calender in the two roller sets during calendering is small, the use effect of calendering equipment is improved, and the calendering process range of the calendered material is also improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a production flow diagram for producing sheet material using the vertical six-roll calender of the present invention;

FIG. 2 is a partial schematic view of FIG. 1;

FIG. 3 is a partial schematic view of FIG. 1;

FIG. 4 is a schematic view of a vertical six-roll calender of the present invention;

FIG. 5 is a schematic drawing of a first calender roll and a second calender roll calendering a material;

FIG. 6 is a perspective view of the raw material delivery inside the discharge port of the extruder;

FIG. 7 is a schematic illustration of the delivery of feedstock using a first delivery unit;

FIG. 8 is a schematic illustration of the delivery of feedstock using a first transfer unit and a second transfer unit;

FIG. 9 is a flow chart of a rolling process using a vertical six-roll calender;

FIG. 10 is a schematic view of a coil obtained using a four-roll calender;

FIG. 11 is a schematic representation of a coil obtained using a six-roll calender.

Description of reference numerals: 100-an extruder; 110-a first baffle; 120-a transport assembly; 130-a second transfer unit; 140-a first transfer unit; 150-a first support bar; 160-extrusion of the shell; 200-a calender; 210-a rack; 220-a magnetic drive assembly; 230-a first calendering roll; 240-second calendering roll; 250-a third calendering roller; 260-fourth calendering roll; 270-a fifth calendering roll; 280-sixth calendering roll; 290-roll gap adjusting device; 300-a cooling unit; 400-a tractor; 500-a winder; 10-a magnetic assembly; 11-a first shaft body; 12-a second shaft body; 13-a first connector; 14-magnetic rod.

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:

referring to fig. 1 to 8, a simultaneous longitudinal and transverse stretching calender comprises: a frame 210, a conveying roller group arranged on the frame 210 and used for conveying and rolling materials, the conveying roller group comprises a first rolling component and a second rolling component, a motor used for driving each roller of the first rolling component and the second rolling component is arranged on the frame 210,

the first calendaring assembly includes: a first calendering roller 230, the first calendering roller 230 is arranged at one side of the frame 210, a second calendering roller 240 with axes in the same vertical plane is arranged under the first calendering roller 230, a feeding port is formed between the first calendering roller 230 and the second calendering roller 240, a discharging port of the extruder 100 is arranged at one side of the feeding port, a third calendering roller 250 with axes in the same vertical plane is arranged under the second calendering roller 240,

the second calendaring assembly comprises: a fourth calendering roller 260, the horizontal height position of the axle center of the fourth calendering roller 260 is consistent with that of the axle center of the third calendering roller 250, a fifth calendering roller 270 with the consistent axle center horizontal height is arranged at one side of the fourth calendering roller 260, a sixth calendering roller 280 is arranged in the discharging direction of the material calendered by the fifth calendering roller 270, wherein the track of the axle center connecting line of each roller of the first calendering component and the axle center connecting line of each roller of the second calendering component forms an L shape, and gaps with consistent intervals are reserved between each roller of the first calendering component and each roller of the second calendering component for calendering and transmitting the material,

wherein, the transmission speed of each roller of the second calendering component is lower than that of each roller of the first calendering component.

The invention carries out calendering treatment on raw materials by selecting a mode of forming a conveying roller set by six rollers, and further divides the transmission of the six rollers into a first calendering component and a second calendering component, which is used for ensuring that the material passes through a calender in two roller sets in the calendering process and the vibration generated by calendering is small, improving the use effect of calendering equipment and improving the calendering process range of the calendered material, compared with the existing four-roller calender, the invention can homogenize the calendering stress of the calendering rollers by arranging the six rollers, can realize the pressing of 1.0-1.4 mm thick sheet materials, can improve the production speed by 30-35%, and the six rollers have transmission speed difference and simultaneously increase the calendering contact surface, thus being beneficial to eliminating the water ripple on the surface of the calendered product, and being specific: according to the invention, the first rolling component and the second rolling component are arranged into an L shape, and the first rolling component and the second rolling component have a conveying speed difference, so that the material is rolled and stretched in the length direction when passing through the first rolling component arranged vertically, and the material is stretched in the width direction through the second rolling component, so that the rolled material is subjected to grading treatment and reduced in rolling.

Optionally, the ratio of the transmission speed of each roller of the second calendering component to the transmission speed of each roller of the first calendering component is 1: 1.1-1.5. The invention sets the rollers of the first calendering component in a vertical arrangement mode, sets the rollers of the second calendering component in a horizontal linear arrangement direction to form an L-shaped conveying roller set, and sets the ratio of the transmission speed of the rollers of the second calendering component to the transmission speed of the rollers of the first calendering component to be 1: 1.1-1.5, so that the transmission speed of the rollers of the second calendering component is lower than that of the rollers of the first calendering component, the rotation speed of the rollers of the first calendering component can not be higher than that of the rollers of the second calendering component by more than 1.5 times, and the preferred ratio is: the ratio of the transmission speed of each roller of the second calendering component to the transmission speed of each roller of the first calendering component is 1:1.3, and the reason why the ratio cannot be too high is that the deformation and the breakage probability of the calendered material can be greatly increased after the ratio exceeds 1.5 times, in the calendering process of the raw material by the first calendering component, because the transmission speed of each roller of the first calendering component is higher, the calendering process of the calendered material can form a stretching effect, and the rotating speed of each roller of the second calendering component arranged behind the calendering process is lower than that of each roller of the first calendering component, the material on the first calendering component can not generate an excessively strong pulling force, the rupture of the calendered material in the process of transferring the calendered material from the first calendering component to the second calendering component is avoided, and the transmission speed of each roller of the second calendering component can be reduced on the second component after the transmission speed of each roller of the second calendering component is lower than that of the first calendering, the width direction of a rolled material can be widened, and when the rolled material is graded and reduced in rolling by the first rolling assembly and the second rolling assembly in the width direction of the rolled material, compared with the mode of uniform speed rolling of each roller of a conventional rolling machine, the rolling mode of the invention effectively reduces the contact time of a rolled product and air, thereby reducing the temperature influence of air temperature on the rolled material, reducing the water ripple on the surface of the rolled product, and avoiding the situations of strength reduction and fracture of the rolled material in rolling and stretching.

And each roller of the first rolling assembly and the second rolling assembly is provided with a roller distance adjusting device 290 for adjusting the distance between the adjacent rollers. The roll distance adjusting device 290 is used for adjusting the position distance of the axle center of each roller relative to the axle center of the adjacent roller, and is used for adjusting and controlling the thickness of the pressed material, and simultaneously, the distance between the rollers is ensured to be in a set range, so that the rolling stroke can be effectively reduced, and the water ripple phenomenon on the surface of a rolled product is further reduced when the rolling is reduced.

The magnetic drive component 220 is arranged above the first rolling roller 230, the magnetic drive component 220 comprises a fixed iron plate fixed with the frame 210, an electromagnet is arranged on the bottom surface of the fixed iron plate, the bottom surface of the electromagnet is an inwards concave arc surface, and the distance between the arc surface of the electromagnet and the outer surface of the first rolling roller 230 is controlled within 5 cm. The bottom surface of the electromagnet is set to be an inward concave arc surface, which is beneficial to the magnetic drive to correspond to the surface of the first calendering roller 230, and the distance between the electromagnet and the bracket of the first calendering roller 230 is controlled to ensure that the magnetic driving force effectively acts on the first calendering roller 230, the magnetic driving force to the first calendering roll 230 is formed by arranging a magnetic driving component 220 above the first calendering roll 230, the magnetic assemblies 10 are arranged in the rollers, so that the rotating speed of the rollers can be further improved by the six rollers in a magnetic driving mode on the basis of the rotating speed driven by the motor, and the magnetic driving speed of the first rolling component is higher than that of the second rolling component by utilizing the principle of energy transfer weakening, the transmission speed of the first rolling component is ensured to be higher than that of the second rolling component, thereby improving the rolling and stretching effect of the first rolling component to the length direction of the rolled material and the rolling effect of the second rolling component to the width direction of the rolled material.

First calendering subassembly and each roller of second calendering subassembly all include first axis body 11, the second axis body 12 and first connector 13, cylindric hole is seted up at 12 middle parts of the second axis body, 11 footpaths of first axis body are less than 12 middle part cylinder hole apertures of the second axis body, first axis body 11 is located in 12 cylinder holes of the second axis body and is coaxial setting, first axis body 11 is through locating elastic first connector 13 of 11 surface surfaces of first axis body and 12 cylinder hole pore wall fixed connection of second axis body around. First connector 13 is isoprene rubber, first axle body 11 is connected with the motor of drive roller, the mode that drives first axle body 11 through the motor is rotatory drives second axle body 12 and comes the rotation to be used for reducing the drive energy consumption, there is the clearance to alleviate the weight of whole roller through setting up first axle body 11 and second axle body 12 and its both junctions and further reduce the drive roller and rotate used energy consumption, choose for use first connector 13 that has certain elasticity to fix between first axle body 11 and second axle body 12 as the connecting piece for can be to the vibration absorption that the calendering caused under the even circumstances of assurance calendering thickness, guarantee that calendering product surface smoothness is high.

The embedded cylindric magnetic pole 14 that sets up around the 12 axle centers of second axle body 12, the embedded magnetic pole 14 of second axle body 12 has two kinds of magnetic forces, locate in the second axle body 12 with the magnetic force magnetic pole crisscross encircleing arranging that is inequality, magnetic force component 10 is constituteed to two embedded adjacent magnetic poles 14 of second axle body 12, magnetic force component 10's two magnetic poles 14 magnetic forces are inequality, be equipped with the magnetic force component 10 of three groups equipartitions at least in the second axle body 12, magnetic force component 10 is the partition and encircles and locate in the second axle body 12. The first shaft body 11 is a metal shaft body, the selected magnetic rods 14 are permanent magnets, two magnetic rods 14 with different magnetic forces are adjacently arranged to form a magnetic assembly 10, so that the magnetic assembly 10 rotates along with the second shaft body 12, the magnetic force of the magnetic assembly 10 in the second shaft body 12 interacts with the magnetic assembly 10 in the adjacent second shaft body 12 to form alternation in the rotation process, the two magnetic rods 14 with different magnetic forces in the magnetic assembly 10 form hysteresis loss to enable the permanent magnets to generate heat, the second shaft body 12 is heated, particles which are not easy to mould in a rolled material are dissolved, crystal points on the rolled product are reduced, the quality of the rolled product is improved, and meanwhile, the magnetic assembly 10 arranged in the second shaft body 12 can effectively improve the adsorbability between the adjacent second shaft bodies 12, so that the rolling effect is improved.

The discharge port of the extruder 100 includes:

an extrusion housing 160, having a material outlet end,

a first conveying unit 140 disposed in the extrusion casing 160, the conveying end of the first conveying unit 140 being disposed at the material outlet end of the extrusion casing 160,

the second transferring unit 130 is disposed parallel to the first transferring unit 140 and below the first transferring unit 140, and a transferring end of the second transferring unit 130 is disposed corresponding to a transferring end of the first transferring unit 140. The processing raw materials are mixed and heated by an extruder and then extruded, a discharge port of the extruder 100 is arranged at a feed port on one side of a first calendering roller 230 and a second calendering roller 240 of a first calendering assembly, so that the heated materials are fed into a six-roller calender for calendering, meanwhile, a first conveying unit 140 is arranged as a raw material conveying unit to convey the heated raw materials to an outlet end of an extrusion shell 160, a second conveying unit 13 is arranged below a first conveying unit 40 and is used for collecting falling raw materials of the first conveying unit 14 and conveying the falling raw materials to the outlet end of the extrusion shell 160, the raw materials can be conveyed together by the first conveying unit 14 and the second conveying unit 130 to accelerate the conveying of the raw materials, and the quality of the raw materials conveyed in the mode is high.

The first transfer unit 140 is composed of at least two sets of transfer units 120, the horizontal height positions of the transfer units 120 constituting the first transfer unit 140 are identical,

the second transfer unit 130 is composed of a set of transfer modules 120,

the conveying assembly 120 includes a conveyor belt, a conveying motor, and a conveying wheel, two ends of the conveying wheel of the conveying assembly 120 are connected to the first supporting bars 150, the first supporting bars 150 are fixed to an inner wall of the extruding housing 160, and a height position of the conveying wheel of at least one group of conveying assemblies 120 in the first conveying unit 140 can be changed relative to the first supporting bars 150. A motor for driving the transmission wheel to move up and down is disposed at the connection between the transmission wheel and the first supporting bar 150. The material is conveyed by a conveyor belt which can be made of composite rubber with high temperature resistance, for preventing the raw material with certain heat from adhering to the surface of the conveyor belt, by arranging at least two conveying assemblies 20 on the first conveying unit 40, the raw material can be conveyed downwards to the second conveying unit 120 during the conveying process on the first conveying unit 140 to form a conversion raw material conveying unit, which is beneficial to protecting the equipment, increasing the flow rate of the material and having a downward force during the transfer of the material from the first transfer unit 140 to the second transfer unit 130, which forces the material to each other to promote the reduction or elimination of voids in the material, advantageously reduces the possibility of bubbles in the calendered product, and the acceleration of the flow velocity of the raw materials can reduce the contact time of the raw materials and the surface of the conveying belt so as to avoid the adhesion of the raw materials and the surface of the conveying belt.

Example 2:

a material pressing method adopting a vertical six-roller calender is used for processing an anticorrosive coiled material wrapped outside a pipeline, and comprises the following specific processing steps:

-subjecting the green compact to an extrusion heating treatment;

-carrying out calendering treatment on the raw material subjected to extrusion heating treatment, wherein a six-roller calender is adopted for calendering, the calender adopts a first calendering component and a second calendering component for calendering the material, the track of the connecting line of the axle centers of the rollers of the first calendering component and the second calendering component is L-shaped, the transmission speed of the second calendering component is lower than that of the first calendering component, and the calendering firstly carries out calendering in the length direction of the material and then carries out calendering in the width direction of the material;

-cooling the rolled formed material;

and drawing the formed material subjected to the temperature reduction treatment to a winding machine for winding, and trimming the formed material in the drawing process.

Meanwhile, a four-roll calender is selected and processed by the same processing technology to obtain an anticorrosive coiled material, the coiled material obtained by the four-roll calender is shown in figure 10, the coiled material obtained by the six-roll calender of the invention is shown in figure 11, and by comparing the two coiled materials, the phenomenon that the surface of the coiled material in figure 10 is corrugated, which affects the quality of the coiled material, can be obviously found, and the surface of the coiled material in figure 11 is smooth and has no corrugation, air holes and the like, so that the finished product obtained by the coiled material prepared by the six-roll calender of the invention is not easy to have the phenomena of water corrugation, air holes and the like which reduce the quality of the.

It should be noted that the calender of the invention is used for calendering rubber materials or calendering anticorrosion coiled materials wrapped outside pipelines.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (5)

1. A synchronous longitudinal and transverse stretching calender comprising: the device comprises a frame (210), a conveying roller set arranged on the frame (210) and used for conveying and rolling materials, wherein the conveying roller set comprises a first rolling component and a second rolling component, a motor used for driving each roller of the first rolling component and the second rolling component is arranged on the frame (210),

the first calendaring assembly comprises: the device comprises a first calendering roller (230), wherein the first calendering roller (230) is arranged on one side of a frame (210), a second calendering roller (240) with axes in the same vertical plane is arranged under the first calendering roller (230), a feeding port is formed between the first calendering roller (230) and the second calendering roller (240), a discharging port of an extruder (100) is arranged on one side of the feeding port, a third calendering roller (250) with axes in the same vertical plane is arranged under the second calendering roller (240),

the second calendaring assembly comprises: a fourth calendering roller (260), the horizontal height position of the axle center of the fourth calendering roller (260) is consistent with that of the axle center of the third calendering roller (250), a fifth calendering roller (270) with the consistent axle center horizontal height is arranged at one side of the fourth calendering roller (260), a sixth calendering roller (280) is arranged in the discharging direction of the calendered material of the fifth calendering roller (270),

wherein, the track of the connecting line of the axle centers of the rollers of the first calendering component and the second calendering component forms an L shape, gaps with consistent space are reserved between the rollers of the first calendering component and the second calendering component for calendering and transmitting materials,

the transmission speed of each roller of the second calendering component is lower than that of each roller of the first calendering component;

the ratio of the transmission speed of each roller of the second calendering component to the transmission speed of each roller of the first calendering component is 1: 1.1-1.5;

each roller of the first rolling assembly and each roller of the second rolling assembly are provided with a roller spacing adjusting device (290) for adjusting the spacing between adjacent rollers;

a magnetic drive assembly (220) is arranged above the first calendering roller (230), the magnetic drive assembly (220) comprises a fixed iron plate fixed with the frame (210), an electromagnet is mounted on the bottom surface of the fixed iron plate, the bottom surface of the electromagnet is an inwards concave arc-shaped surface, and the distance between the arc surface of the electromagnet and the outer surface of the first calendering roller (230) is controlled within 5 cm;

first calendering subassembly and each roller of second calendering subassembly all include first axis body (11), the second axis body (12) and first connector (13), cylindric hole is seted up at second axis body (12) middle part, first axis body (11) diameter of axle is less than second axis body (12) middle part cylinder hole aperture, second axis body (12) cylinder hole is downthehole and be coaxial setting in first axis body (11) is located, first axis body (11) are located first axis body (11) outward appearance through encircleing and have elastic first connector (13) and second axis body (12) cylinder hole wall fixed connection.

2. The longitudinal and transverse synchronous stretching calender according to claim 1, wherein: the embedded cylindric magnetic pole (14) that set up around second axle body (12) axle center of second axle body (12), the embedded magnetic pole (14) of second axle body (12) have two kinds of magnetic forces to magnetic pole crisscross encircleing different is arranged and is located in second axle body (12), magnetic force component (10) are constituteed to two embedded adjacent magnetic poles (14) of second axle body (12), two magnetic pole (14) magnetic forces of magnetic force component (10) are inequality, be equipped with magnetic force component (10) of three groups equipartitions in second axle body (12) at least, magnetic force component (10) are the partition and encircle and locate in second axle body (12).

3. The longitudinal and transverse synchronous stretching calender according to claim 1, wherein: the discharge port of the extruder (100) comprises:

an extrusion shell (160) with a material outlet end, a first conveying unit (140) arranged in the extrusion shell (160), wherein the conveying end of the first conveying unit (140) is arranged at the material outlet end of the extrusion shell (160),

the second conveying unit (130) is arranged in parallel with the first conveying unit (140) and is arranged below the first conveying unit (140), and the conveying tail end of the second conveying unit (130) is arranged corresponding to the conveying tail end of the first conveying unit (140).

4. The longitudinal and transverse synchronous stretching calender according to claim 3, characterized in that:

the first conveying unit (140) is composed of at least two groups of conveying assemblies (120), the horizontal height positions of the conveying assemblies (120) forming the first conveying unit (140) are consistent,

the second transfer unit (130) is composed of a set of transfer assemblies (120),

wherein, the conveying component (120) comprises a conveyor belt, a conveying motor and a conveying wheel, two ends of the conveying wheel of the conveying component (120) are connected with a first supporting strip (150), the first supporting strip (150) is fixedly arranged on the inner wall of the extrusion shell (160),

wherein the height position of the conveying wheels of at least one group of conveying assemblies (120) in the first conveying unit (140) can be changed relative to the first supporting bar (150).

5. A lumber-rolling method using a simultaneous longitudinal and transverse stretching calender according to any one of claims 1 to 4, characterized by the steps of:

-subjecting the green compact to an extrusion heating treatment;

-subjecting the extruded and heat treated raw material to a calendering process, wherein the calendering process comprises firstly calendering the material in the length direction and then calendering the material in the width direction;

-cooling the rolled formed material;

and drawing the formed material subjected to the temperature reduction treatment to a winding machine for winding, and trimming the formed material in the drawing process.

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