CN112964531A - High polymer material sample preparation system and sample preparation method - Google Patents

Abstract

The invention belongs to the technical field of high polymer material testing, and discloses a high polymer material sample preparation system and a sample preparation method; the system comprises a base, wherein the base comprises a top plate and supporting legs arranged below the top plate, one end of the top plate is a head end, the other end of the top plate is a tail end along the length direction of the top plate, a pair of driving rollers are arranged at two ends of the top plate, an annular conveying belt matched with the driving rollers is further arranged on the top plate, and a material clamping device is arranged on the conveying belt; the top plate is sequentially provided with a thinning device, a flaw detection device, a blanking device, a material picking device and a waste recovery device from the head end to the tail end of the top plate; the system also comprises a control module for controlling the linkage of the material clamping device, the thinning device, the flaw detection device, the blanking device, the material picking device and the waste recovery device, and the problems that in the prior art, the automation degree is low, the internal defects of the sample strip are difficult to detect, the cut-off knife is not stored, and the waste of manpower and resources is serious are solved.

Description

High polymer material sample preparation system and sample preparation method

Technical Field

The invention relates to the technical field of high polymer material testing, in particular to a high polymer material sample preparation system and a sample preparation method.

Background

In the process of developing and producing high molecular materials, the performance indexes of the materials or the product quality need to be continuously detected, and various sample strips with different sizes and specifications need to be rapidly prepared, performance test analysis is rapidly carried out, and the formula and the process are timely adjusted.

In the production process of rubber products, samples need to be taken from products, the existing sampling method is to manually take an irregular rubber block or rubber plate from the products by using a cutter or a cutting machine, the thickness of the rubber block or the rubber plate is uneven, the samples cannot be directly made for performance testing, the rubber block or the rubber plate needs to be cut for many times to reach the specified thickness, and particularly when the taken rubber block or the rubber plate is irregular in shape and large in thickness, the cutting time is long, the labor intensity is high, and the efficiency is low.

After cutting a test piece with a specified thickness, screening out a qualified test piece by naked eyes, using a cutter to cut sample strips to avoid the test piece or part with a flaw on the surface as much as possible, using cutters with different specifications to cut the test piece or part into sample strips with different specifications, and obtaining different performance indexes through detection; at present, the spline punching process is manual punching, a plurality of cutters are used during punching, if the interior of a test piece has defects such as holes or larger particles, the defects cannot be observed in advance by naked eyes, and only a later test result is possible to be fed back, so that the test result is invalid, the test is required to be carried out again, and the waste of manpower, time and resources is caused; moreover, the splines of different specifications need to use a plurality of different cutting knives, and the cutting knives are troublesome to classify and store and inconvenient to manage.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a high polymer material sample preparation system and a sample preparation method, which can automatically avoid defects and automatically cut sample strips with various shapes and specifications.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a high polymer material sample preparation system comprises a base, wherein the base comprises a top plate and supporting legs arranged below the top plate, and one end of the top plate is a head end and the other end of the top plate is a tail end along the length direction of the top plate; a pair of driving rollers is arranged at two ends of the top plate, the driving rollers are of cylindrical structures arranged along the width direction of the top plate, and strip-shaped teeth are arranged on the outer walls of two sides of the driving rollers; the top plate is also provided with an annular conveying belt matched with the driving roller, the conveying belt is provided with two pairs of clamping devices, and the two pairs of clamping devices are symmetrically arranged on two sides of the conveying belt close to the head end of the top plate; the top plate is sequentially provided with a thinning device, a flaw detection device, a blanking device, a material picking device and a waste recovery device from the head end to the tail end of the top plate; the system also comprises a control module for controlling the material clamping device, the thinning device, the flaw detection device, the blanking device, the material picking device and the waste recovery device to be linked.

Furthermore, the thinning device comprises two pairs of first ball screw devices vertically arranged on two sides of the supporting leg, any one of the first ball screw devices extends out of the top plate and is movably connected with a lifting plate, and the first ball screw devices drive the lifting plate to move up and down in a vertical plane; two pairs of two lifting plates positioned on the same side of the supporting leg are connected through a pair of second ball screw devices, and the two second ball screw devices are horizontally arranged along the length direction of the top plate; the two second ball screw devices are movably connected with a cross beam, the cross beam is arranged along the width direction of the top plate, and the second ball screw devices drive the cross beam to reciprocate along the length direction of the top plate; the cutter belt is fixed on the cross beam, the cutter belt and the top plate are arranged at an acute angle, the cross beam is further provided with a suction cover, the suction cover is sleeved on the cutter belt, and the suction cover is connected with a suction machine through a suction pipe arranged at the top end of the suction cover, so that cut chips are discharged at any time, and the environment pollution is avoided.

Furthermore, the blanking device comprises at least one pair of third ball screw devices which are vertically arranged, and also comprises a shell which is matched with the third ball screw devices and can move up and down, wherein a pair of driving shafts which are arranged along the length direction of the top plate are arranged in the shell, the driving shafts are driven by a motor, and a pair of first guide columns which are arranged along the width direction of the top plate are also arranged in the shell; any one first guide post is connected with a sliding block in a sliding mode, and the sliding block is connected with the driving shaft through a first transmission belt fixed on the sliding block; the bottom ends of the sliding blocks are provided with driving gears, the driving gears are driven by a motor, the two driving gears are driven by a second transmission belt, and the first transmission belt and the second transmission belt are synchronous belts; the two sliding blocks are connected through a pair of second guide pillars arranged along the length direction of the top plate, a tool rest is connected onto the two second guide pillars in a sliding manner, a liftable punching cutter and a liftable and rotatable tooth-shaped cutter are arranged on the tool rest, the punching cutter is in a sheet shape, the tool bit of the punching cutter is in an arc-shaped sharp angle, the tooth-shaped cutter is in an annular structure, and saw-tooth-shaped blades are uniformly distributed on the outer ring of the tooth-shaped cutter; the second transmission belt is fixed on the tool rest, and the tool rest is driven by the second transmission belt to move left and right along the second guide pillar along the length direction of the top plate.

Furthermore, the material clamping device comprises a bottom plate, the bottom plate is movably connected with a shear type lifting mechanism, the shear type lifting mechanism comprises two rectangular frames, the two rectangular frames are rotatably connected to form an X-shaped structure, the bottom end of one rectangular frame is rotatably connected with the bottom plate, the other end of the rectangular frame is slidably connected with an upper clamping plate, and the upper clamping plate is arranged on the top plate in parallel; the bottom end of the other rectangular frame is connected with the bottom plate in a sliding manner and is connected with a driving cylinder, the driving cylinder is fixed on the bottom plate, a groove matched with the rectangular frame is further formed in the bottom plate, and the top end of the driving cylinder is rotationally connected with the upper clamping plate; and a rubber pad matched with the bottom plate is also arranged on one side of the upper clamping plate, and the shear type lifting mechanism drives the upper clamping plate to move up and down so as to clamp a sample.

Further, the material picking device comprises a sample frame arranged on one side of the base, the sample frame is of a box body structure with an opening at the top end, the material picking device also comprises a mechanical arm fixed on the top plate, the mechanical arm and the sample frame are arranged on the same side, a suction disc is arranged at the free end of the mechanical arm, and the suction disc is a vacuum suction disc; the waste recovery device comprises a sensor module arranged at the tail end of the top plate and a waste frame arranged at the tail end of the top plate, the waste frame is of a box structure with an open top end, and the open end of the waste frame is movably connected with a cover plate.

Further, first ball screw device, second ball screw device, third ball screw device all include the lead screw, are equipped with the supporting seat on the lead screw, and lead screw one end is passed the supporting seat and is connected with driving motor.

Furthermore, the conveying belt is a synchronous belt with teeth on the inner side and smooth on the outer side, and the teeth on the inner side of the conveying belt are arranged on two sides of the conveying belt in the width direction; the control module is also connected with a display, and the display is arranged on the base.

A high polymer material sample preparation method adopts the high polymer material sample preparation system, and comprises the following steps:

s1: cutting a sample from a product, and fixing the cut sample on a conveying belt through a material clamping device;

s2: starting the system, driving the sample to move to the thinning device by the conveyer belt, and stopping moving the conveyer belt; the thinning device adjusts the height, then makes continuous reciprocating motion in the horizontal direction, and through continuous height adjustment and thinning, the sample fixed on the conveyor belt is thinned to the required thickness;

s3: after the thinning operation is finished, the conveying belt drives the sample to continuously move to a flaw detection device, the flaw detection device detects flaws on the sample and sends the positions of defective parts on the sample to a control module;

s4: the conveyer belt continuously drives the sample to move to the blanking device, the control module automatically avoids the defect according to the position information of the sample defect part fed back in the step S3, and the sample is blanked into non-damaged sample strips with different specifications and shapes at the position where the sample is free of defect;

s5: after the blanking of the sample strips is finished, the conveying belt continuously drives the sample strips to move to the material picking device, the material picking device automatically picks up the blanked sample strips, and the blanked sample strips are uniformly placed and collected;

s6: and after the material picking is finished, the conveying belt continues to drive the punched sample to move until the waste material recovery device is triggered, at the moment, the clamping device loosens the sample, the waste material recovery device recovers the sample, and the conveying belt drives the clamping device to move reversely to return to the initial position.

Further, the control module controls the processes of the movement and the positioning of the skiving device, the flaw detection device, the blanking device, the material picking device and the waste recovery device to be as follows: the top surface of the conveyer belt is used as a coordinate plane, the length direction of the conveyer belt is used as an X-axis direction, the width direction of the conveyer belt is used as a Y-axis direction, the vertical direction is used as a Z-axis direction, the length and the width of the top plate define a rectangular area, a space coordinate system is established by using the central point of the top surface of the conveyer belt as an origin, the coordinates of the devices in the coordinate system are determined, and the control module accurately controls the relative positions of the devices by controlling the coordinates of the devices in the space coordinate system.

Further, the process of avoiding the defective position of the test specimen in step S4 is as follows: in step S3, the flaw detection device feeds back the coordinates of the defective position on the sample to the control module, and the control module avoids the defective area on the sample according to the coordinate information, and arranges samples of different shapes and specifications in a classified manner on the sample in the non-damaged area, and then controls the blanking device to blank the sample.

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

(1) the system is provided with a material clamping device, a thinning device, a flaw detection device, a blanking device, a material picking device and a waste recovery device, and the devices in the system are subjected to linkage control through a control module, a sample is firstly thinned to a certain thickness, then the flaw detection device detects the flaw of the sample so as to detect the flaw part of the sample, so that the blanking device can automatically avoid the flaw on the sample during blanking, the sample strips with various specifications are blanked at the flaw-free part of the sample, the material picking device carries out feeding picking and unified placement on the sample strips after the cutting is finished, the collection of the sample strips is finished, the waste and defective residual sample picking device recovers the waste and defective residual sample, the sample pieces can be quickly and fully automatically cut into the non-damaged sample strips with various specifications and shapes, and the efficiency and the quality of sample strip manufacturing are greatly improved.

(2) The two pairs of first ball screw devices can drive the cross beam to move up and down, so that the thinned thickness can be accurately adjusted; two second ball screw devices can drive the sword area and cut thin along roof length direction reciprocating motion to the sample, and the piece that the production was cut thin is through inhaling on the sword area material cover and inhaling material pipe suction, and whole workstation is clean and tidy, and operational environment is better to effectively avoided the piece to produce the pollution to the environment.

(3) The blanking device is provided with two cutters, one cutter is a tooth-shaped cutter, and the tooth-shaped cutter can rotate and move up and down and can cut a sample strip with a long strip-shaped structure; another kind is for having the thin slice type die-cutting knife of curved sharp tooth, and the die-cutting knife can reciprocate under the effect of cylinder to carry out the blanking to the sample, can punch out shapes such as chamfer, fillet, need not the manual work and change and deposit the cut-off knife, has saved the manpower greatly and has cut spline shape, specification more various.

(4) The material clamping device adopts a shear type lifting mechanism, and is matched with the bottom plate and the upper clamping plate, and the driving cylinder is used for driving the shear type lifting mechanism to extend or contract to clamp a sample, so that the stability of the relative position of the sample is ensured; pick up the material device and inhale and deposit the spline that punches well to the sample frame through the cooperation of arm and sucking disc, make things convenient for operating personnel to take away the spline, the discarded sample passes through the waste recovery device and collects and waits for unified processing on next step, the wasting of resources that has significantly reduced has reduced artifical intensity of labour.

(5) The top surface of the conveyer belt is used as a coordinate plane, the length direction of the conveyer belt is used as an X-axis direction, the width direction of the conveyer belt is used as a Y-axis direction, the vertical direction is used as a Z-axis direction, the length and the width of the top plate limit a rectangular area, a space coordinate system is established by using a central point of the top surface of the conveyer belt as an original point, the coordinates of all devices in the coordinate system are determined, the relative position of all devices is accurately controlled by a control module through controlling the coordinates of all devices in the space coordinate system, the later-stage flaw detection device can conveniently mark the coordinates of the flaw part on the sample, the control module plans the area and the shape of the sample strip on the sample according to the coordinates, and controls a cutting device to cut and a material picking device to pick up, and the linkage and.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention in example 1;

FIG. 2 is a schematic three-dimensional structure of each apparatus of the present invention in example 1 after being disassembled;

fig. 3 is a schematic three-dimensional structure of a blanking device in embodiment 1;

FIG. 4 is a schematic three-dimensional structure of the material clamping device in example 1;

FIG. 5 is an enlarged view taken at A in FIG. 2;

FIG. 6 is an enlarged view at B in FIG. 3;

fig. 7 is a schematic three-dimensional structure of a conveyor belt according to example 1;

FIG. 8 is a schematic three-dimensional view of a scrap recycling apparatus according to example 1;

fig. 9 is a schematic three-dimensional structure of the present invention in example 3.

In the figure: the device comprises a top plate 1, a conveyor belt 2, a material suction pipe 3, a material suction cover 4, a material clamping device 5, a bottom plate 501, a scissor type lifting mechanism 502, a driving cylinder 503, an upper clamping plate 504 and a rubber pad 505; the device comprises a flaw detection device 6, a shell 7, a first transmission belt 8, a driving shaft 9, a sliding block 10, a toothed cutter 11, a blanking cutter 12, a cutter rest 13, a second guide post 14, a second transmission belt 15, a sample frame 16, a mechanical arm 17, a suction cup 18, a sensor module 19, a waste frame 20, a first ball screw device 21, a second ball screw device 22, a cross beam 23, a lifting plate 24, a display 25, a third ball screw device 26, a supporting leg 27, a cover plate 28, a first guide post 29, a driving roller 30 and a cutter belt 31.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention is further explained below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-8, a polymer material sample preparation system comprises a base, wherein the base comprises a top plate 1 and supporting legs 27 arranged below the top plate 1, and along the length direction of the top plate 1, one end of the top plate 1 is a head end, and the other end of the top plate 1 is a tail end; a pair of rectangular grooves are formed in the top plate 1, a pair of driving rollers 30 are arranged at two ends of the top plate 1, the driving rollers 30 are of a cylindrical structure arranged along the width direction of the top plate 1, strip-shaped teeth are arranged on the outer walls of two sides of the driving rollers 30, an annular conveying belt 2 matched with the driving rollers 30 is further arranged on the top plate 1, the conveying belt 2 is a synchronous belt with teeth on the inner side and smooth on the outer side, the teeth on the inner side of the conveying belt 2 are arranged on two sides of the width direction of the conveying belt 2, and the teeth on the inner side of the conveying belt 2 are matched with the teeth on the driving rollers 30 and are; the conveying belt 2 is provided with two pairs of material clamping devices 5, and the two pairs of material clamping devices 5 are symmetrically arranged on two sides of the conveying belt 2 close to the head end of the top plate 1; from the head end to the tail end of the top plate 1, a thinning device, a flaw detection device 6, a blanking device, a material picking device and a waste recovery device are sequentially arranged on the top plate 1; the system is also provided with a control module which controls the material clamping device 5, the thinning device, the flaw detection device 6, the blanking device, the material picking device and the waste recovery device to be linked.

The material clamping device 5 comprises a bottom plate 501, the bottom plate 501 is movably connected with a scissor type lifting mechanism 502, the scissor type lifting mechanism 502 comprises two rectangular frames, the two rectangular frames are in an X-shaped structure and are rotatably connected in a vertical plane, the bottom end of one rectangular frame is rotatably connected with the bottom plate 501 in the vertical plane, the other end of the rectangular frame is slidably connected with an upper clamping plate 504, the upper clamping plate 504 is arranged on the bottom plate 501 in parallel, and a long-strip-shaped guide rail matched with the scissor type lifting mechanism 502 is arranged on the upper clamping plate 504; the bottom end of the other rectangular frame is connected with the bottom plate 501 in a sliding manner and is connected with a driving cylinder 503, the driving cylinder 503 is fixed on the bottom plate 501, a groove matched with the rectangular frame is further formed in the bottom plate 501, and the top end of the bottom plate is rotatably connected with the upper clamping plate 504; the upper clamping plate 504 is also provided with a rubber pad 505 matched with the bottom plate 501, and the scissor type lifting mechanism 502 is used for bringing the upper clamping plate 504 to move up and down so as to clamp a sample.

The thinning device comprises two pairs of first ball screw devices 21 which are vertically arranged on two sides of the supporting leg 27, any one of the first ball screw devices 21 extends out of the top plate 1 and is movably connected with a lifting plate 24, and the first ball screw device 21 drives the lifting plate 24 to move up and down in a vertical plane; two pairs of two lifting plates 24 positioned on the same side of the supporting leg 27 are connected through a pair of second ball screw devices 22, and the two second ball screw devices 22 are horizontally arranged along the length direction of the top plate 1; the two second ball screw devices 22 are movably connected with a cross beam 23, the cross beam 23 is arranged along the width direction of the top plate 1, and the second ball screw devices 22 drive the cross beam 23 to reciprocate along the length direction of the top plate 1; a cutter belt 31 is fixed on the cross beam 23, an included angle of 25 degrees is formed between the cutter belt 31 and the top plate 1, a material suction cover 4 is further arranged on the cross beam 23, the material suction cover 4 is sleeved on the cutter belt 31, and the material suction cover 4 is connected with a material suction machine through a material suction pipe 3 arranged at the top end of the material suction cover 4, so that cut debris is discharged at any time, and the environment pollution is avoided; wherein, first ball screw device 21, second ball screw device 22 all include the lead screw, are equipped with the supporting seat on the lead screw, and lead screw one end is passed the supporting seat and is connected with driving motor.

The flaw detection device 6 detects materials by adopting X rays or gamma rays or ultrasonic waves, the flaw detection device 6 is connected with a display 25 of the control module, the display 25 is arranged on the base, and the display 25 can display the flaw detection result; the blanking device comprises two pairs of vertically arranged third ball screw devices 26, any third ball screw device 26 comprises a screw, a support seat is arranged on the screw, one end of the screw penetrates through the support seat and is connected with a driving motor, the driving motor is vertically arranged on the support leg 27, and one end of the screw, which is far away from the driving motor, penetrates through the top plate 1 and extends out of the top surface of the top plate 1; the blanking device further comprises a shell 7 which is matched with the third ball screw device 26 and can move up and down, the shell 7 is of a rectangular box structure, two pairs of vertically arranged threaded holes matched with the third ball screw device 26 are formed in two sides of the shell 7, a pair of driving shafts 9 arranged along the length direction of the top plate 1 are arranged in the shell 7, the driving shafts 9 are driven by a motor, and a pair of first guide pillars 29 arranged along the width direction of the top plate 1 are further arranged; any one first guide post 29 is connected with a sliding block 10 in a sliding way, and the sliding block 10 is connected with a driving shaft 9 through a first transmission belt 8 fixed on the sliding block 10; the bottom ends of the sliding blocks 10 are respectively provided with a driving gear, the driving gears are driven by a motor, the two driving gears are driven by a second transmission belt 15, and the first transmission belt 8 and the second transmission belt 15 are synchronous belts; the two sliding blocks 10 are connected through a pair of second guide posts 14 arranged along the length direction of the top plate 1, a knife rest 13 is connected on the two second guide posts 14 in a sliding manner, a liftable punching knife 12 and a liftable and rotatable tooth-shaped knife 11 are arranged on the knife rest 13, the punching knife 12 is in a sheet shape, the knife head of the punching knife 12 is in an arc sharp angle, the tooth-shaped knife 11 is in an annular structure, and saw-tooth-shaped blades are uniformly distributed on the outer ring of the tooth-shaped knife 11; the punching cutter 12 and the tooth-shaped cutter 11 can be driven by a cylinder or hydraulic pressure when moving up and down, or can be driven by a four-bar mechanism, and the tooth-shaped cutter 11 can be driven by a motor when rotating; the second transmission belt 15 is fixed on the knife rest 13, and the knife rest 13 is driven by the second transmission belt 15 to move left and right along the second guide post 14 along the length direction of the top plate 1.

The material picking device comprises a sample frame 16 arranged on one side of the base, the sample frame 16 is of a box body structure with an opening at the top end, the material picking device also comprises a mechanical arm 17 fixed on the top plate 1, the mechanical arm 17 and the sample frame 16 are arranged on the same side, nine sucking discs 18 are arranged at the free end of the mechanical arm 17, and the sucking discs 18 are vacuum sucking discs 18; waste recovery device is including setting up the sensor module 19 at roof 1 tail end, sensor module 19 can be optical fiber sensor, still including setting up the waste material frame 20 at roof 1 tail end, waste material frame 20 is top open-ended box structure, waste material frame 20 open end swing joint has apron 28, when keeping away from the sample motion trigger sensor module 19 after roof 1 head end presss from both sides material device 5 and drives the sample after cutting, press from both sides material device 5 and loosen the sample that is pressed from both sides tightly, the apron 28 of waste material case is opened, transport area 2 continues the motion and advances waste material frame 20 with the sample transportation, it triggers sensor module 19 again to be close to the material device 5 of clamp of roof 1 head end, this moment, apron 28 of waste material frame 20 is closed under the effect of motor, transport area 2 reverse motion gets back to initial position, accomplish cutting of spline and the recovery of waste material.

Example 2

A high molecular material sample preparation method, has adopted a high molecular material sample preparation system, regard 2 top surface of conveyer belt as the coordinate plane at first, regard 2 length direction of conveyer belt as the direction of X axle, regard 2 width direction of conveyer belt as the direction of Y axle, regard vertical direction as the direction of Z axle, the length and width of the roof 1 limits a rectangular area, regard central point of the top surface of conveyer belt 2 as the original point and set up the space coordinate system, confirm the coordinate in the coordinate system of every apparatus, the control module controls the relative position of every apparatus accurately through controlling the coordinate in the space coordinate system, said method mainly comprises the following steps:

s1: cutting a sample from a product, and fixing the cut sample on a conveying belt 2 through a material clamping device 5;

s2: starting the system, driving the sample to move to the thinning device by the conveyer belt 2, and stopping the conveyer belt 2; the thinning device adjusts the height, then does continuous reciprocating motion in the horizontal direction, and thins the sample fixed on the conveyer belt 2 to the required thickness by continuously adjusting the height and thinning;

s3: after the thinning operation is finished, the conveyer belt 2 drives the sample to continuously move to the flaw detection device 6, the flaw detection device 6 detects flaws on the sample, and the position of a defective part on the sample is sent to the control module;

s4: the conveyer belt 2 continuously drives the sample to move to the blanking device, the control module automatically avoids the defect according to the position information of the sample defect part fed back in the step S3, and the process of avoiding the defect position of the sample is as follows: in step S3, the flaw detection device 6 feeds back the coordinates of the defective position on the sample to the control module, the control module avoids the defective area on the sample according to the coordinate information, and arranges samples of different shapes and specifications on the sample in the non-damaged area in a classified manner, and then controls the blanking device to blank the sample to obtain non-damaged samples of different specifications and shapes; when the blanking device is used for blanking, the tooth-shaped knife 11 or the blanking knife 12 can be independently used, or the tooth-shaped knife 11 and the blanking knife 12 can be used together;

s5: after the blanking of the sample strips is finished, the conveying belt 2 continues to drive the sample strips to move to the material picking device, the material picking device automatically picks up the blanked sample strips, and the blanked sample strips are placed and collected in a unified mode;

s6: when the material picking is finished, the conveying belt 2 continues to drive the punched sample to move until the waste material recovery device is triggered, at the moment, the material clamping device 5 loosens the sample, the waste material recovery device recovers the sample, and the conveying belt 2 drives the material clamping device 5 to move reversely to return to the initial position.

Example 3

Referring to fig. 9, a sample preparation system for polymer materials differs from embodiment 1 only in that a pair of third ball screw devices 26 are provided, the pair of third ball screw devices 26 are symmetrically disposed on both sides of the top plate 1, and both sides of the housing 7 are provided with a pair of vertically disposed threaded holes which are matched with the third ball screw devices 26.

Example 4

The high polymer material sample preparation system is different from the embodiment 1 only in that three pairs of third ball screw devices 26 are arranged, the three pairs of third ball screw devices 26 are symmetrically arranged on two sides of a top plate 1, and three pairs of vertically arranged threaded holes matched with the third ball screw devices 26 are arranged on two sides of a shell 7.

Example 5

A high polymer material sample preparation system is different from the sample preparation system in the embodiment 1 only in that the included angle between the knife belt 31 and the top plate 1 is 15 degrees.

Example 6

A high polymer material sample preparation system is different from the sample preparation system in the embodiment 1 only in that the included angle between the knife belt 31 and the top plate 1 is 30 degrees.

Example 7

A polymer sampling system is different from the system of embodiment 1 only in that the number of the suction cups 18 is one.

Example 8

A polymer sampling system is different from the system of embodiment 1 only in that the number of the suction cups 18 is three.

Example 9

A polymer sampling system is different from the system of embodiment 1 only in that the number of the suction cups 18 is six.

Example 10

A method for preparing a sample of a polymer material, which is different from the method of embodiment 2 only in that in step S2, when both sides of the sample are not smooth before the thinning operation, one side of the sample is firstly thinned by using a thinning device, then the sample is turned over, and the other side of the sample is thinned until the surface of the sample reaches the required flatness.

Claims (10)

1. A high polymer material sample preparation system comprises a base, wherein the base comprises a top plate and supporting legs arranged below the top plate, and one end of the top plate is a head end and the other end of the top plate is a tail end along the length direction of the top plate; the top plate is sequentially provided with a thinning device, a flaw detection device, a blanking device, a material picking device and a waste recovery device from the head end to the tail end of the top plate; the system also comprises a control module for controlling the material clamping device, the thinning device, the flaw detection device, the blanking device, the material picking device and the waste recovery device to be linked.

2. The polymer material sample preparation system according to claim 1, wherein the thinning device comprises two pairs of first ball screw devices vertically arranged at two sides of the support leg, any one of the first ball screw devices extends out of the top plate and is movably connected with a lifting plate, the two pairs of lifting plates positioned at the same side of the support leg are connected through a pair of second ball screw devices, and the two second ball screw devices are horizontally arranged; the two second ball screw devices are movably connected with a cross beam, a cutter belt is fixed on the cross beam, a material suction cover is further arranged on the cross beam, the material suction cover is connected with a material suction machine through a material suction pipe, and the material suction cover is sleeved on the cutter belt.

3. The polymer material sample preparation system according to claim 2, wherein the blanking device comprises at least a pair of vertically arranged third ball screw devices, and further comprises a housing which is matched with the third ball screw devices and can move up and down, wherein a pair of driving shafts arranged along the length direction of the top plate and a pair of first guide pillars arranged along the width direction of the top plate are arranged in the housing; a sliding block is connected to any one of the first guide columns in a sliding manner and is connected with the driving shaft through a first transmission belt fixed on the sliding block; the bottom ends of the sliding blocks are provided with driving gears, the two driving gears are driven by a second driving belt, the two sliding blocks are connected by a pair of second guide pillars arranged along the length direction of the top plate, the two second guide pillars are connected with a tool rest in a sliding mode, the tool rest is provided with a liftable punching tool and a liftable and rotatable toothed tool, and the second driving belt is fixed on the tool rest.

4. The polymer material sample preparation system according to claim 3, wherein the material clamping device comprises a bottom plate, the bottom plate is movably connected with an X-shaped scissor type lifting mechanism, a driving cylinder for driving the scissor type lifting mechanism to stretch and retract is arranged at the bottom end of the scissor type lifting mechanism, and the driving cylinder is fixed on the bottom plate; the top end of the shear type lifting mechanism is movably connected with an upper clamping plate, and one side of the upper clamping plate is provided with a rubber pad matched with the bottom plate.

5. The system for preparing the sample of the high polymer material according to claim 4, wherein the material picking device comprises a sample frame arranged on one side of a base, the sample frame is of a box body structure with an open top end, the system further comprises a mechanical arm fixed on a top plate, and a suction cup is arranged at the free end of the mechanical arm; the waste recovery device comprises a sensor module arranged at the tail end of the top plate and a waste frame arranged at the tail end of the top plate, the waste frame is of a box structure with an open top end, and the open end of the waste frame is movably connected with a cover plate.

6. The system for preparing a sample from a polymer material according to claim 5, wherein the first ball screw device, the second ball screw device and the third ball screw device each comprise a screw, a support seat is provided on the screw, and a driving motor is connected to one end of the screw through the support seat.

7. The polymer material sample preparation system according to claim 6, wherein the conveyor belt is a synchronous belt with teeth on the inner side and smooth on the outer side, and the teeth on the inner side of the conveyor belt are arranged on two sides of the conveyor belt in the width direction; the control module is further connected with a display, and the display is arranged on the base.

8. A polymer material sample preparation method, which adopts the polymer material sample preparation system of any one of claims 1 to 7, and comprises the following steps:

s1: cutting a sample from a product, and fixing the cut sample on a conveying belt through a material clamping device;

s2: starting the system, driving the sample to move to the thinning device by the conveyer belt, and stopping moving the conveyer belt; the thinning device adjusts the height and then makes continuous reciprocating motion in the horizontal direction until the sample fixed on the conveying belt is thinned to the designated thickness;

s3: after the thinning operation is finished, the conveying belt drives the sample to continuously move to a flaw detection device, the flaw detection device detects flaws on the sample and sends the positions of defective parts on the sample to a control module;

s4: the conveyer belt continuously drives the sample to move to the blanking device, the control module automatically avoids the defect according to the information of the sample defect part fed back by the step S3, and the sample is blanked into non-damaged sample strips with different specifications and shapes;

s5: after the blanking of the sample strips is finished, the conveying belt continuously drives the sample strips to move to the material picking device, the material picking device automatically picks up the blanked sample strips, and the blanked sample strips are uniformly placed and collected;

s6: and after the material picking is finished, the conveying belt continues to drive the punched sample to move until the waste material recovery device is triggered, at the moment, the clamping device loosens the sample, the waste material recovery device recovers the sample, and the conveying belt drives the clamping device to move reversely to return to the initial position.

9. The method for preparing the sample of the high polymer material according to claim 8, wherein the control module controls the thinning device, the flaw detection device, the blanking device, the material picking device and the waste recovery device to move and position in the following steps: the method comprises the steps of establishing a space coordinate system by taking the top surface of a conveyer belt as a coordinate plane, the length direction of the conveyer belt as an X-axis direction, the width direction of the conveyer belt as a Y-axis direction, the vertical direction as a Z-axis direction and the central point of the top surface of the conveyer belt as an origin, determining the coordinates of each device in the coordinate system, and accurately controlling the relative position of each device by controlling the coordinates of each device in the space coordinate system by a control module.

10. A sample preparation method for polymer materials according to claim 9, wherein the step S4 of avoiding the defect position of the sample comprises: in step S3, the flaw detection device feeds back the coordinates of the defective position on the sample to the control module, and the control module avoids the defective area on the sample according to the coordinate information, and arranges samples of different shapes and specifications in a classified manner on the sample in the non-damaged area, and then controls the blanking device to blank the sample.

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