CN111253062B

CN111253062B - Device for cutting while drawing material with adsorption property

Info

Publication number: CN111253062B
Application number: CN202010369849.1A
Authority: CN
Inventors: 王福康
Original assignee: Changzhou Sinajet Science and Technology Co Ltd
Current assignee: Changzhou Sinajet Science and Technology Co Ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-08-18
Anticipated expiration: 2040-05-06
Also published as: CN111253062A

Abstract

The invention relates to the technical field of machine tool accessories, in particular to an adsorptive material pulling and cutting device, which comprises a table top, a large-flow air suction system, a conveying belt, a power system, a guide structure and a slip detection device, wherein the adsorptive material pulling is realized under the combined action of the conveying belt, the power system, the guide structure and the slip detection device, namely under the condition that the large-flow air suction system is not stopped, the material cutting in the moving process of the conveying belt is realized, the efficiency of a machine tool can be greatly improved, and the slip detection device can ensure the accuracy of adsorptive material pulling; the large-flow air suction system has enough suction, the section of the air duct is rectangular, the contact area of the air duct and the table top is large, the suction force is strong, and the pressure drop is small, so that the requirement of the air suction flow during the existing multilayer cutting can be met, the suction force is improved, and the phenomena of material carrying and slipping in the multilayer cutting process are avoided; one side of the tensioning roller can be connected with the servo motor through the speed reducer as required to form a double-driving roller power system so as to provide larger power.

Description

Device for cutting while drawing material with adsorption property

Technical Field

The invention relates to the technical field of machine tool accessories, in particular to an adsorptive material pulling, edge pulling and cutting device.

Background

Some machine tools such as cutting machines are a common machine for cutting light breathable materials, and a conveyor belt is located on a table top, and the light breathable materials to be cut are usually placed on the conveyor belt, transported to a cutting station by the conveyor belt, and vacuum is formed by an air suction structure to tightly adsorb the materials on the conveyor belt on the table top, so that the materials can be conveniently cut by a cutting part stretching over the table top.

Along with the wider application range of glass fibers, the production efficiency is improved in order to meet the capacity requirement of the glass fiber industry, and the glass fiber cutting machine is developed.

At present, the feeding mode of the domestic cutting machine is that a fan is stopped or switched into a blowing mode, and then a conveying belt is controlled to move forwards and backwards. After the conveyer belt moves to the designated position. And then starting the fan to start air suction. Because the start-stop of fan needs certain time, in addition, the flow of the air suction system of guillootine is limited, and suction is not enough, gets up the material area easily or cuts bad when cutting some gas permeability material, especially cuts multilayer gas permeability glass fiber material. This mode may reduce the working efficiency and working accuracy of the clipper.

Because glass fiber needs the multilayer to cut, has certain gas permeability moreover, but because the structure form that original induced draft structure is connected for a small amount of gas collecting channel and circular pipeline usually, the flow is limited, and glass fiber takes the material and the phenomenon of skidding easily appears at the in-process that cuts.

Disclosure of Invention

Aiming at overcoming the defects, the invention provides a device for drawing and cutting the adsorptive material. This structure can not only satisfy the multilayer and cut the gas permeability material, can also realize drawing the material under the state that induced drafts to drawing the material in-process and also cutting, having reduced the fan and having opened and stop, draw the material process and receive the material and wait for the wasted time, improve cutting efficiency. It should be noted that the device for drawing and cutting the material with the adsorption property is applicable to, but not limited to, a cutting machine, and can also be used on other machine tools.

The technical scheme adopted by the invention for solving the technical problems is as follows: an adsorptive material pulling, edge pulling and cutting device comprises a table top, a large-flow air suction system, a conveying belt, a power system, a guide structure and a slip detection device, wherein the table top is an adsorptive table top and is fixed on a machine frame of a machine tool; the large-flow air suction system is arranged at the lower part of the table board and comprises an air duct with a rectangular cross section, a plurality of linearly and uniformly distributed ventilation openings are arranged on the upper surface of the air duct, a connecting opening is arranged on the lower surface of the air duct, the ventilation openings are connected with the lower surface of the table board, and the connecting opening is connected with a large-flow fan through an air duct; the conveying belt is positioned at the upper part of the table top and is driven by a power system; the power system comprises a driving roller, a tensioning roller, a speed reducer and a servo motor, wherein the driving roller and the tensioning roller are respectively fixed at two ends of a rack of the machine tool, the conveying belt is wound on the driving roller and the tensioning roller, and the driving roller is connected with the servo motor through the speed reducer; the guide structure is arranged on the rack and provides guide for the movement of the conveying belt; the skid detection device is fixed on the side part of the tensioning roller through a support, and a detection head of the skid detection device is attached to the surface of the conveying belt tightly to detect the actual running distance of the conveying belt.

Preferably, a vibration isolator is installed at the bottom of the fan, so that the cutting effect of the machine is prevented from being influenced by the vibration of the fan.

Preferably, the duct is rectangular in cross-section, has a large cross-sectional area and is easy to manufacture.

Preferably, the mesa contains upper plate, frame and the bottom plate that forms cavity structures, the upper plate is provided with the adsorption holes that the equipartition was arranged, the bottom plate contains the zonulae occludens of a plurality of linear equipartitions, the zonulae occludens is provided with the air vent, the zonulae occludens links to each other with the vent of ventiduct. The ventilation performance is good, and the connection area of the linear and uniform distribution of the bottom plate and the large-flow air suction system has large communication area and good ventilation performance.

According to another embodiment of the invention, a U-shaped groove is arranged between adjacent ventilation openings of the ventilation channel, a connecting bracket is fixed at the position of the U-shaped groove, and the connecting bracket is fixed on a machine frame of a machine tool through a longitudinal section bar. The weight of the air channel is transmitted to the machine frame by the longitudinal section bar through the connecting bracket, so that the deformation of the table top caused by the direct application of the weight of the air channel to the table top is prevented, and the cutting precision and the service life of the machine tool are ensured.

According to another embodiment of the invention, the ventilation channel is a split assembly structure in the length direction, and adjacent split bodies are in transition connection through a sealing gasket. Effective induced draft cross-sectional area 3000 of ventiduct supplyes 7000mm, split type structure is equivalent to monolithic structure, has reduced the manufacturing degree of difficulty.

According to another embodiment of the invention, the conveying belt is further provided with linearly and uniformly distributed holes, the hole diameter is 1-4 mm, and the hole distance is 6-15 mm. Further increasing the air permeability of the conveying belt and ensuring the suction.

According to another embodiment of the invention, the driving roller further comprises a first roller, first rollers at two ends of the first roller and rubber coating on the first roller, the first rollers at one end are connected with a speed reducer through keys, the diameter of the driving roller is 150-300 mm, the rubber coating hardness is 65-90 SHA, and the surface roughness Ra 2-4.5. Because the servo motor is output with large torque, in order to prevent the slippage phenomenon caused by the movement between the driving roller and the speed reducer, the driving roller and the speed reducer are connected through a key to transmit large torque, and the friction force of the first roller is increased by coating rubber.

According to another embodiment of the invention, the tensioning roller comprises two groups of support frames, a first adjusting screw, two groups of adjusting plates, a second roller, two roller shafts at two ends of the second roller and a second adjusting screw, wherein the two roller shafts at two ends are respectively connected with the adjusting plates, the two groups of adjusting plates are respectively connected with the two groups of support frames, two waist-shaped grooves are transversely arranged on the adjusting plates, the first adjusting screw penetrates through the waist-shaped grooves to be matched with threaded holes in the support frames, two transverse through holes are formed in the support frames, the second adjusting screw is connected with the threaded holes in the adjusting plates through the transverse through holes, and the second roller is made of aluminum tubes or steel tubes and has the diameter of 150-300 mm.

According to another embodiment of the invention, the method further comprises that one side of the tensioning roller is also connected with the servo motor through a speed reducer. When the adsorbability draws material to power requirement when higher, we link to each other one side of tensioning cylinder with servo motor through the speed reducer, and at this moment, the tensioning cylinder can not only play the effect of tensioning, can also provide power, forms two initiative cylinder driving system with the initiative cylinder in the lump to satisfy adsorbability and draw the material to the needs of power.

According to another embodiment of the present invention, the guiding structure further comprises at least two sets of guiding rods, the guiding rods are rotatably connected to a guiding bracket, and the guiding bracket is fixed on the frame. The guide bar also can follow the rotation, and this kind of mode can lead, also can be through rolling with static friction power transformation kinetic friction to reduce the resistance between conveyer belt and the guide bar. The guide rod mainly improves the effect of the wrap angle of the roller, and the larger the wrap angle is, the larger the transmitted power is under the condition of certain power output.

According to another embodiment of the invention, the detecting head of the slippage detecting device is fixed at one end of a rotating shaft, the rotating shaft is rotatably connected to a bearing seat, the other end of the rotating shaft is connected with an encoder for counting the number of revolutions, the bearing seat is fixed on a bracket, when the conveying belt is in feeding motion, the detecting head rotates along with the rotation, the rotation of the detecting head is fed back to the encoder, and the actual moving distance of the conveying belt can be calculated by reading signals of the encoder and compared with the set moving distance. If the distance between the two is inconsistent, the machine will alarm to shut down.

According to another embodiment of the invention, it is further comprised that the bracket of the slippage detection device is provided with a kidney-shaped hole. Two waist type holes on the support cooperate with the threaded holes on the frame, the front and back positions can be adjusted, the detection head is guaranteed to be always attached to the conveying belt, and the detection effectiveness is guaranteed.

The invention has the advantages that under the combined action of the conveying belt, the power system, the guide structure and the slip detection device, adsorptive material pulling is realized, and the material can be cut in the material pulling process, namely, under the condition that the large-flow air suction system is not stopped, the material cutting in the movement of the conveying belt is realized, and the time wasted in starting and stopping of a fan, the material pulling process and the material receiving waiting is reduced, so that the efficiency can be greatly improved, and the slip detection device can ensure the accuracy of adsorptive material pulling; the suction of the large-flow air suction system is sufficient, the section of the air duct is rectangular and has large contact area with the table top, and meanwhile, compared with the circular air duct, the rectangular cross section area is larger, the suction force is strong, and the pressure drop is reduced, so that the requirement of air suction flow during the existing multilayer cutting can be met, the suction force on materials can be effectively improved, the phenomena of material carrying and slipping in the multilayer cutting process are avoided, and the materials are prevented from being carried or cut; in addition, one side of the tensioning roller can be connected with the servo motor through the speed reducer according to needs, and therefore a double-driving-roller power system is formed, and the requirement for adsorption pulling is met by providing larger power.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic perspective view of the structure of the present invention;

FIG. 2 is a schematic view of the slip detection device and the position of the tensioning roller;

FIG. 3 is a structural cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a perspective view of a high flow aspiration system;

FIG. 6 is a front view of a high flow aspiration system;

FIG. 7 is a top view of the structure of the present invention with the conveyor belt removed;

FIG. 8 is a bottom view of the structure of the table top;

FIG. 9 is a perspective view of the structure of the driving roller;

FIG. 10 is a front view of the structure of the driving roller;

FIG. 11 is a structural sectional view of a driving roller;

FIG. 12 is a perspective view of the structure of the tensioning roller;

FIG. 13 is a structural cross-sectional view of the tensioning roller;

FIG. 14 is an exploded view of the tensioning roller;

FIG. 15 is a schematic view of the structure of the guide bar and the guide bracket;

FIG. 16 is a cross-sectional view of the structure of FIG. 15;

fig. 17 is an exploded view of the slip detection device one;

fig. 18 is a second exploded view of the slip detection device;

fig. 19 is a sectional view of the slippage detection device;

fig. 20 is a schematic view of the structure of the conveyor belt;

fig. 21 is a schematic structural diagram of a dual drive roller power system.

In the figure, 1, a table top, 1-1, an upper plate, 1-2, a frame, 1-3, a bottom plate, 1-4, adsorption holes, 1-5, a connection area, 1-6, vent holes, 2, a large-flow air suction system, 2-1, an air duct, 2-2, vent holes, 2-3, a connecting port, 2-4, an air duct, 2-5, a fan, 2-6, a U-shaped groove, 2-7, a connecting support, 2-8, a longitudinal profile, 3, a conveying belt, 4, a power system, 4-1, an active roller, 4-1-1, a roller I, 4-1-2, a roller I, 4-1-3, rubber coating, 4-2, a tensioning roller, 4-2-1, a support frame, 4-2-2 and an adjusting screw I, 4-2-3 parts of adjusting plate, 4-2-4 parts of roller II, 4-2-5 parts of roller shaft II, 4-2-6 parts of adjusting screw II, 4-3 parts of speed reducer, 4-4 parts of servo motor, 5 parts of guide structure, 5-1 parts of guide rod, 5-2 parts of guide support, 6 parts of slip detection device, 6-1 parts of support, 6-2 parts of detection head, 6-3 parts of rotating shaft, 6-4 parts of bearing seat, 6-5 parts of encoder, 6-5-1 parts of housing, 6-5-2 parts of encoding disk, 6-5-3 parts of code reader, 6-5-4 parts of cover plate, 7 parts of frame.

Detailed Description

As shown in fig. 1 to 7 and 9, which are schematic structural diagrams of the present invention, an adsorptive material pulling, edge pulling and cutting device comprises a table top 1, a large flow suction system 2, a conveyor belt 3, a power system 4, a guide structure 5 and a slippage detection device 6, wherein the table top 1 is an adsorptive table top and is fixed on a machine frame 7 of a machine tool; the large-flow air suction system 2 is arranged at the lower part of the table board 1, the large-flow air suction system 2 comprises an air duct 2-1 with a rectangular cross section, a plurality of linearly and uniformly distributed ventilation openings 2-2 are arranged on the upper surface of the air duct 2-1, a connection port 2-3 is arranged on the lower surface of the air duct 2-1, the ventilation openings 2-2 are connected with the lower surface of the table board 1, and the connection port 2-3 is connected with a large-flow fan 2-5 through an air duct 2-4; the conveying belt 3 is positioned at the upper part of the table top 1 and is driven by a power system 4; the power system 4 comprises a driving roller 4-1, a tensioning roller 4-2, a speed reducer 4-3 and a servo motor 4-4, the driving roller 4-1 and the tensioning roller 4-2 are respectively fixed at two ends of a frame 7 of the machine tool, the conveyer belt 3 is wound on the driving roller 4-1 and the tensioning roller 4-2, and the driving roller 4-1 is connected with the servo motor 4-4 through the speed reducer 4-3; the guide structure 5 is arranged on the frame 7 and provides guide for the movement of the conveying belt 3; the slip detection device 6 is fixed at the side part of the tensioning roller 4-2 through a bracket 6-1, and a detection head 6-2 of the slip detection device 6 is tightly attached to the surface of the conveying belt 3 to detect the actual running distance of the conveying belt 3.

The principle of large-flow adsorptive pulling material is as follows: after a large-flow fan 2-5 is started, airflow enters the table board 1 from the air-permeable conveying belt 3, then enters the air duct 2-1 and the air duct 2-4 of the large-flow air suction system 2 from the table board 1, and finally enters the fan 2-5 to be discharged, when materials are placed on the conveying belt 3, a certain negative pressure is formed between the materials on the conveying belt 3 and between the materials and the table board 1, so that the purpose of firmly adsorbing the materials on the conveying belt 3 is achieved; under the condition that the high-flow air suction system 2 sucks air, to realize that the material pulling needs to meet a certain condition, the power system 4 provides enough power for pulling the material, and in order to ensure the feeding precision, the system adopts a servo motor 4-4 to provide power; the guide structure 5 changes the path of the conveyer belt 3 to increase the friction force between the conveyer belt 3 and the driving roller 4-1 and increase the wrap angle of the driving roller 4-1 to increase the friction force, and the tensioning roller 4-2 again tensions the conveyer belt 3 and adjusts the stress of the conveyer belt 3, so that the conveyer belt 3 is stressed uniformly and cannot be deviated laterally. After the conditions are met, the conveying belt 3 can convey materials to cut under the condition of large-flow air suction, namely, adsorptive material pulling is realized, in order to prevent the conveying belt 3 from slipping to influence the accuracy of adsorptive material pulling action, a slip detection device 6 is arranged, the slip detection device 6 detects the actual running distance of the conveying belt 3, the actual running distance is compared with the expected set distance, when the actual feeding distance of the conveying belt 3 does not reach the expected set distance, the detection is carried out, the machine tool alarms and stops, and after the adjustment is carried out again, the adsorptive material pulling is carried out so as to facilitate cutting; in the application, the cutting part of the cutting machine is transversely arranged above the conveying belt 3, in the cutting process, under the combined action of the conveying belt 3, the power system 4, the guide structure 5 and the slip detection device 6, the adsorption material pulling is realized, namely, under the condition that the large-flow air suction system 2 does not stop, the movement of the conveying belt 3 is realized, the condition that the traditional cutting machine needs to realize the conveying of materials under the condition that a fan is closed is avoided, therefore, the efficiency of the cutting machine can be greatly improved, and in addition, the slip detection device 6 can ensure the accuracy of the adsorption material pulling action; the suction of the large-flow air suction system 2 is sufficient, the section of the air duct 2-1 is rectangular, the contact area of the air duct 2-1 and the table board 1 is large, and meanwhile, compared with a circular air duct, the rectangular section area is larger, the suction force is strong, and the pressure drop is reduced, so that the air suction flow requirement during the existing multilayer cutting can be met, the suction force on materials can be effectively improved, the phenomena of material carrying and slipping in the multilayer cutting process are avoided, and the materials are prevented from being carried or cut.

Preferably, the vibration isolator is installed at the bottom of the fan 2-5, the fan 2-5 rotates at a high speed to generate an ultra-large flow, and the vibration isolator is installed at the bottom of the fan 2-5 in order to prevent the cutting effect of the machine from being influenced by the vibration of the fan 2-5.

Preferably, the ducts 2-4 are rectangular in cross-section, have a large cross-sectional area and are easy to manufacture.

Preferably, the table board 1 comprises an upper plate 1-1, a frame 1-2 and a bottom plate 1-3 which form a cavity structure, the upper plate 1-1 is provided with adsorption holes 1-4 which are uniformly distributed, the bottom plate 1-3 comprises a plurality of connecting areas 1-5 which are linearly and uniformly distributed, the connecting areas 1-5 are provided with vent holes 1-6, and the connecting areas 1-5 are connected with the vent holes 2-2 of the ventilation channel 2-1.

As shown in figures 4 and 8, a cavity structure formed by the upper plate 1-1, the frame 1-2 and the bottom plate 1-3 has good ventilation performance, and the connecting area 1-5 of the bottom plate 1-3 which is linearly and uniformly distributed has large communication area with the large-flow air suction system 2 and good ventilation performance.

According to another embodiment of the invention, a U-shaped groove 2-6 is arranged between the adjacent ventilation openings 2-2 of the ventilation channel 2-1, a connecting bracket 2-7 is fixed at the position of the U-shaped groove 2-6, and the connecting bracket 2-7 is fixed on a machine frame 7 of a machine tool through a longitudinal section bar 2-8.

As shown in fig. 4, the U-shaped groove 2-6 provides space for connecting the bracket 2-7 and the longitudinal section bar 2-8, so that the ventilation duct 2-1 is more compactly installed; holes in the matching surfaces of the connecting supports 2-7 and the longitudinal sectional materials 2-8 are standard holes and are fixed through T-shaped bolts, and holes in the matching surfaces of the connecting supports 2-7 and the ventilation ducts are processed waist-shaped grooves. The position of the threaded hole on the ventilation channel 2-1 is uncertain due to accumulated errors easily occurring in the machining and assembling. The waist-shaped groove can ensure that the ventilating duct 2-1 can be fixed under the condition, the arrangement also enables the table board 1 and the ventilating duct 2-1 to be compactly connected, in the application, the longitudinal section bar 2-8 is an 8080 European standard heavy section bar to ensure the strength, the connecting support 2-7 is an 8080 aluminum section bar connecting support, the weight of the ventilating duct 2-1 is transmitted to the machine frame 7 from the longitudinal section bar 2-8 through the connecting support 2-7, the deformation of the table board 1 caused by the direct application of the weight of the ventilating duct 2-1 to the table board is prevented, and therefore the cutting precision and the service life of the cutting machine are ensured.

According to another embodiment of the present invention, further comprising that the air duct 2-1 is a split assembly structure in the length direction thereof, adjacent split bodies are transitionally connected by a gasket, and the effective air suction cross-sectional area 3000 and 7000mm of the air duct 2-1 are replaced.

As shown in figure 5, the ventilation duct 2-1 is formed by splicing a plurality of split bodies, in order to ensure the sealing performance after connection, the matching surface is transited through a sealing gasket, the split structure is equivalent to an integral structure, and the manufacturing difficulty is reduced.

According to another embodiment of the invention, the conveying belt 3 is provided with linearly and uniformly distributed holes with the hole diameter of 1-4 mm and the hole pitch of 6-15 mm. As shown in fig. 20, the air permeability of the conveyor belt 3 is further increased to ensure the suction force.

According to another embodiment of the invention, the driving roller 4-1 comprises a roller I4-1-1, roller shafts I4-1-2 at two ends of the roller I4-1-1 and rubber coatings 4-1-3 on the roller I4-1-1, the roller shaft I4-1-2 at one end is connected with a speed reducer 4-3 through a key, the diameter of the driving roller 4-1 is 150-300 mm, the hardness of the rubber coatings 4-1-3 is 65-90 SHA, and the surface roughness Ra 2-4.5 is further included.

As shown in fig. 9 to 11, the main component of the power system 4 is the driving roller 4-1, which is mounted on the frame 7 by welding the left and right brackets into a T shape with different thicknesses according to the power supply, and the thickness range is 10-25 mm. And a bearing is arranged on the bracket at one side to provide a rotary support for the roller shaft I4-1-2 at one end of the roller I4-1-1. The support on the other side fixes a speed reducer 4-3 through a bolt. Preferably, a first roll shaft 4-1-2 at one end is provided with a shaft shoulder which is matched and positioned with the bearing inner ring, and the other side of the bearing is fixed on the bracket through an end cover to limit the left and right movement of the bearing. And a first roll shaft 4-1-2 at the other end is also provided with a shaft shoulder to be matched and positioned with the speed reducer. Therefore, the axial positions of the roll shafts 4-1-2 at the two ends are limited and cannot axially move. Because the servo motor 4-4 outputs large torque, in order to prevent the slippage phenomenon of the movement between the driving roller 4-1 and the speed reducer 4-3, the large torque is transmitted between the driving roller 4-1 and the speed reducer 4-3 through a key connection.

As the diameter of the first roller 4-1-1 is larger, the first roller 4-1-1 adopts a hollow circular tube under the condition of meeting the strength requirement of use, and the wall thickness of the first roller 4-1-1 is 3-15 mm. The material is steel pipe or aluminum alloy pipe. According to the size difference of the cutting machine and the power supply, the diameter of the roller is 150-300 mm. In consideration of the processing industry and the processing cost, the roll shafts 4-1-2 at the two ends of the roller shaft 4-1-1 are connected through welding or end covers are welded at the two sides of the roller shaft 4-1-1, and then the roll shafts 4-1-2 and the roller shaft 4-1-1 are connected into a whole through threads. After welding or connecting the two ends into an integral structure through threads, integrally processing the integral structure to ensure the coaxiality of the first two end roll shafts 4-1-2, preferably, the coaxiality of the first two end roll shafts 4-1-2 is 0.02-0.05 mm, so that smooth movement is ensured; in order to prevent the conveying belt 3 from slipping on the driving roller 4-1, a layer of rubber is coated on the roller 4-1-1 to increase the friction force of the roller 4-1-1, the thickness of the rubber coating 4-1-3 is 3-10 mm, the material of the rubber coating 4-1-3 is rubber, the hardness is 65-90 SHA, and the surface roughness Ra 2-4.5.

According to another embodiment of the invention, it is further included that one side of the tensioning roller 4-2 is also connected with a servo motor through a speed reducer.

As shown in fig. 12 to 14, in a normal situation, the tensioning roller 4-2 only tensions the conveyor belt 3, adjusts the stress of the conveyor belt 3 to be uniform, and prevents deviation, the tensioning roller 4-2 consists of two sets of support frames 4-2-1, a first adjusting screw 4-2-2, two sets of adjusting plates 4-2-3, a second roller 4-2-4, two end roller shafts 4-2-5 and two adjusting screws 4-2-6, the two end roller shafts 4-2-5 are respectively connected with the adjusting plates 4-2-3, the two sets of adjusting plates 4-2-3 are respectively connected with the two sets of support frames 4-2-1, the roller 4-2-4 uses an aluminum pipe or a steel pipe as a raw material, and has a diameter of 150 to 300mm, preferably, the adjusting plate 4-2-3 is provided with a bearing which plays a role of rotating the supporting roll shaft two 4-2-5, two waist-shaped grooves which are transversely arranged are formed in the adjusting plate 4-2-3, the adjusting screw I4-2-2 penetrates through the waist-shaped grooves to be matched with a threaded hole in the supporting frame 4-2-1, in addition, two transverse through holes are formed in the supporting frame 4-2-1, and the adjusting screw II 4-2-6 is connected with the transverse threaded hole in the adjusting plate 4-2-3 through the transverse through holes. When the position of the tensioning roller 4-2 needs to be adjusted, the first adjusting screw 4-2-2 is loosened, then the second adjusting screw 4-2-6 is screwed, so that the front and back movement of the tensioning roller 4-2 can be realized, the purpose of tensioning the conveyer belt 3 is realized, in addition, the front and back positions of the tensioning roller 4-2 can be independently adjusted on the left side and the right side of the tensioning roller 4-2, when the conveyer belt 3 runs to one side due to uneven stress, the position of one side can be independently adjusted to ensure that the conveyer belt 3 cannot deviate. Preferably, a square boss is designed on the adjusting plate 4-2-3, the boss is matched with the square hole in the supporting frame 4-2-1 during assembly, the adjusting plate 4-2-3 is prevented from twisting, and preferably, the coaxiality of the two end roller shafts 4-2-5 is 0.02-0.05 mm, so that smooth movement is guaranteed.

When the requirement of adsorptive pulling materials on power is high, one side of the tensioning roller 4-2 is connected with the servo motor 4-4 through the speed reducer 4-3, as shown in fig. 21, at the moment, the tensioning roller 4-2 not only can play a tensioning role, but also can provide power, and a double-driving-roller power system is formed together with the driving roller 4-1 so as to meet the requirement of adsorptive pulling materials on power.

According to another embodiment of the present invention, it is further included that the guiding structure 5 comprises at least two sets of guiding rods 5-1, as shown in fig. 15 and 16, the guiding rods 5-1 are rotatably connected to the guiding brackets 5-2, and the guiding brackets 5-2 are fixed on the frame 7.

As shown in FIG. 3, four guide rods 5-1 form a trapezoidal guide path, and each guide rod 5-1 has the same structure but different placement positions and has the same function. Each guide rod 5-1 is rotatably connected to a set of guide brackets 5-2. Preferably, the guide rod 5-1 is a hollow tube with the tube diameter of 30-80 mm. The wall thickness of the hollow pipe is 2-6mm, and the material is a steel pipe, so that the strength is ensured, and the weight is reduced. Preferably, a bearing is arranged at the rotating connection position of the guide rod 5-1 and the guide bracket 5-2 to provide a rotating support. When the conveyer belt 3 moves, the guide rod 5-1 can also rotate along with the conveyer belt, and the guide mode can guide and can also convert static friction into dynamic friction through rolling so as to reduce the resistance between the conveyer belt 3 and the guide rod 5-1. In this application, two guide bars 5-1 that are located the bottom let conveyer belt 3 pass through from the guillootine below, can increase the inner space of guillootine like this to hold other spare parts of guillootine. The guide rod 5-1 positioned in the middle of the right side plays a role of tensioning the conveying belt 3, if the conveying belt 3 is too long, the position of the guide rod can be adjusted, the path of the conveying belt 3 is lengthened, the function of adjusting the conveying belt 3 is achieved, and if the length of the conveying belt 3 is proper, the guide rod can be cancelled. The guide rod 5-1 at the top mainly improves the wrapping angle effect of the roller, and when the conveying belt 3 is used for transmission, the larger the wrapping angle is under the condition that the power output is constant, the larger the transmitted power is. The size of the wrap angle can be adjusted by adjusting the upper and lower heights of the guide rod 5-1, and the wrap angle range is 100 degrees and 130 degrees. In some industries with low transmission power requirements, the uppermost guide rod 5-1 can be removed, and the use requirements can be met without increasing wrap angles.

According to another embodiment of the present invention, it further comprises that the detection head 6-2 of the slippage detection device 6 is fixed on one end of a rotation shaft 6-3, the rotation shaft 6-3 is rotatably connected to a bearing seat 6-4, the other end of the rotation shaft 6-3 is connected to an encoder 6-5 for counting the number of rotations, and the bearing seat 6-4 is fixed on the bracket 6-1.

As shown in fig. 17, two bearings are installed in the bearing seat 6-4 to support the rotation shaft 6-3 to rotate. One end of the rotating shaft 6-3 is matched with the detection head 6-2, and the other end is matched with the encoder 6-5. Preferably, the surface of the detection head 6-2 is subjected to special knurling treatment, and the surface is rough and wear-resistant. The detection head 6-2 is always attached to the conveying belt 3, when the conveying belt 3 feeds materials to move, the detection head 6-2 rotates and transmits the rotation to the rotating shaft 6-3, the number of rotation turns of the rotating shaft 6-3 is fed back to the encoder 6-5, the actual movement distance of the conveying belt 3 can be calculated by reading signals of the encoder 6-5, and the actual movement distance is compared with the set movement distance. If the distance between the two is inconsistent, the machine will alarm to shut down.

As shown in fig. 18 and 19, the encoder 6-5 includes a housing 6-5-1, a code disc 6-5-2, a code reader 6-5-3, and a cover plate 6-5-4, the code disc 6-5-2 is located in the housing 6-5-1 and connected to the rotary shaft 6-3, the code reader 6-5-3 is also located in the housing 6-5-1, wherein the edge of the code disc 6-5-2 is located in the groove of the code reader 6-5-3, and the cover plate 6-5-4 seals the housing 6-5-1. The rotation of the detection head 6-2 is transmitted to the coding disc 6-5-2 through the rotating shaft 6-3, the code reader 6-5-3 comprises a signal acquisition circuit, and the rotation signal of the coding disc 6-5-2 can be read out, so that the actual movement distance of the conveying belt 3 is obtained.

According to another embodiment of the invention, it is further included that the bracket 6-1 of the slip detection device 6 is provided with a kidney-shaped hole. Two waist-shaped holes on the bracket 6-1 are matched with threaded holes on the rack 7, the front and back positions can be adjusted, the detection head 6-2 is ensured to be always attached to the conveying belt 3, and the detection effectiveness is ensured.

It should be noted that the device for drawing and cutting the material with the adsorption property is applicable to, but not limited to, a cutting machine, and can also be used on other machine tools.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An adsorptive material pulling, edge pulling and cutting device is characterized by comprising a table board (1), a large-flow air suction system (2), a conveying belt (3), a power system (4), a guide structure (5) and a slip detection device (6),

the table top (1) is an adsorptive table top and is fixed on a machine frame (7) of a machine tool, the table top (1) comprises an upper plate (1-1), a frame (1-2) and a bottom plate (1-3) which form a cavity structure, the upper plate (1-1) is provided with adsorption holes (1-4) which are uniformly distributed, the bottom plate (1-3) comprises connecting areas (1-5) which are linearly and uniformly distributed, and the connecting areas (1-5) are provided with vent holes (1-6);

the high-flow air suction system (2) is arranged at the lower part of the table board (1), the high-flow air suction system (2) comprises an air duct (2-1) with a rectangular cross section, a plurality of linearly and uniformly distributed ventilation openings (2-2) are formed in the upper surface of the air duct (2-1), a connecting port (2-3) is formed in the lower surface of the air duct (2-1), the ventilation openings (2-2) are connected with the lower surface of the table board (1), and the connecting port (2-3) is connected with a high-flow fan (2-5) through an air duct (2-4);

the conveying belt (3) is positioned at the upper part of the table top (1) and is driven by a power system (4);

the power system (4) comprises a driving roller (4-1), a tensioning roller (4-2), a speed reducer (4-3) and a servo motor (4-4), the driving roller (4-1) and the tensioning roller (4-2) are respectively fixed at two ends of a rack (7) of the machine tool, the conveying belt (3) surrounds the driving roller (4-1) and the tensioning roller (4-2), and the driving roller (4-1) is connected with the servo motor (4-4) through the speed reducer (4-3);

the guide structure (5) is arranged on the rack (7) and provides guide for the movement of the conveying belt (3);

the slip detection device (6) is fixed on the side part of the tensioning roller (4-2) through a bracket (6-1), and a detection head (6-2) of the slip detection device (6) is tightly attached to the surface of the conveying belt (3) to detect the actual running distance of the conveying belt (3).

2. An adsorptive pulling and edge-drawing cutting device as claimed in claim 1, wherein a U-shaped groove (2-6) is arranged between the adjacent ventilation openings (2-2) of the ventilation duct (2-1), a connecting bracket (2-7) is fixed at the U-shaped groove (2-6), and the connecting bracket (2-7) is fixed on a machine frame (7) of a machine tool through a longitudinal section bar (2-8).

3. The device as claimed in claim 2, wherein the air duct (2-1) is a split assembly structure in the length direction, adjacent segments are connected by a seal gasket in a transition manner, and the effective air suction cross-sectional area of the air duct (2-1) is 3000-7000mm²。

4. An adsorptive pulling and cutting device as claimed in claim 1, wherein the conveyer belt (3) is provided with linearly and uniformly distributed holes with a diameter of 1-4 mm and a pitch of 6-15 mm.

5. An adsorptive material pulling, edge drawing and cutting device as claimed in claim 1, wherein the driving roller (4-1) comprises a roller I (4-1-1), roller I (4-1-2) at two ends of the roller I (4-1-1) and an encapsulation (4-1-3) on the roller I (4-1-1), wherein the roller I (4-1-2) at one end is connected with a speed reducer (4-3) through a key, the diameter of the driving roller (4-1) is 150-300 mm, the hardness of the encapsulation (4-1-3) is 65-90 SHA, and the surface roughness Ra 2-4.5.

6. An adsorptive material drawing, edge drawing and cutting device according to claim 1, wherein the tensioning roller (4-2) comprises two groups of support frames (4-2-1), a first adjusting screw (4-2-2), two groups of adjusting plates (4-2-3), a second roller (4-2-4), two roll shafts (4-2-5) at two ends of the second roller (4-2-4) and two adjusting screws (4-2-6), wherein the two roll shafts (4-2-5) at two ends are respectively connected with the adjusting plates (4-2-3), the two groups of adjusting plates (4-2-3) are respectively connected with the two groups of support frames (4-2-1), the adjusting plates (4-2-3) are provided with two waist-shaped grooves which are transversely arranged, the adjusting screw I (4-2-2) penetrates through the waist-shaped groove to be matched with a threaded hole in the support frame (4-2-1), two transverse through holes are formed in the support frame (4-2-1), the adjusting screw II (4-2-6) is connected with the threaded hole in the adjusting plate (4-2-3) through the transverse through holes, and the roller II (4-2-4) is made of aluminum tubes or steel tubes and is 150-300 mm in diameter.

7. An adsorptive drawing and trimming device as claimed in claim 1 or 6, wherein one side of said tension roller (4-2) is also connected to a servo motor (4-4) through a reducer (4-3).

8. An absorbent material pulling and edge trimming device as set forth in claim 1, characterized in that the guide structure (5) comprises at least two sets of guide rods (5-1), the guide rods (5-1) are rotatably connected to a guide bracket (5-2), and the guide bracket (5-2) is fixed on the frame (7).

9. An adsorptive pulling and cutting device as claimed in claim 1, wherein the detection head (6-2) of the slippage detection device (6) is fixed at one end of a rotating shaft (6-3), the rotating shaft (6-3) is rotatably connected to a bearing seat (6-4), the other end of the rotating shaft (6-3) is connected to an encoder (6-5) for counting the number of revolutions, and the bearing seat (6-4) is fixed on the bracket (6-1).

10. An adsorptive pulling and trimming device according to claim 1 or 9, wherein a bracket (6-1) of the slippage detection device (6) is provided with a kidney-shaped hole.