Feeding equipment and feeding method for aluminum alloy profile machining
Technical Field
The invention relates to the technical field of feeding equipment, in particular to feeding equipment and a feeding method for processing an aluminum alloy section.
Background
Aluminum alloys have a long history of development as an important industrial material. In the early stage, the performance and the application range of the aluminum alloy are relatively narrow due to the limitations of smelting and processing technologies, the smelting process of the aluminum alloy is obviously improved along with the continuous progress of scientific technology, the purity and the alloy composition are controlled more accurately, the performance of the aluminum alloy is greatly improved, and in the aspect of section bar manufacturing, the traditional extrusion process is gradually mature, so that various section bars with complex sections and high precision can be produced. Meanwhile, new processing technologies such as rolling and stretching are continuously emerging, and the variety and application fields of the aluminum alloy section bar are further enriched.
The aluminum alloy section is more and more widely applied in the industrial field, in the process of processing and feeding the aluminum alloy section, the aluminum alloy section is conveyed under the rotation of the rotating roller, the aluminum alloy section is easy to fall from two sides of the conveying frame, not only is the aluminum alloy section easy to damage, but also nearby personnel are easy to damage, and meanwhile when encountering a gradient, the aluminum alloy section can slip on the rotating roller, so that the aluminum alloy section is chaotic, and the conveying efficiency is reduced.
Disclosure of Invention
The feeding equipment for processing the aluminum alloy section comprises a frame body, wherein the frame body is used for supporting equipment, a motor is fixedly arranged on the outer side of the frame body, the motor is externally connected with a power supply to work, the motor drives a rotating shaft to rotate, the rotating shaft drives a roller, the roller drives a belt to rotate, and accordingly materials at the top of the belt are driven to move to a processing position, and the motor penetrates through the frame body and extends into the frame body;
The rollers are fixedly connected with the output end of the motor, are rotationally connected with the frame body, are positioned in the middle of the frame body, are multiple in number, are rotationally connected with transmission chains on the outer sides of the rollers, and are connected through the transmission chains;
The conveying belt is in rotary connection with the plurality of rollers;
the storage component is fixedly arranged at the top of the frame body and is positioned at one end of the frame body close to the frame body;
wherein the roller comprises a rotating shaft fixedly connected with the output end of the motor, the rotating shaft is rotationally connected with the frame body, the outer side of the rotating shaft is fixedly connected with a roller, the outer side of the roller is provided with through holes, the number of the through holes is multiple, the through holes are uniformly distributed by taking the rotating shaft as the center, the inner wall of the roller is fixedly connected with a fixed cylinder, a square plate is contacted with the inner side of a belt, a compression spring is compressed in an initial state, under the extrusion force between the square plate and the belt and the elastic force of the compression spring, the tension of the belt is in a normal range, when the tension of the belt is in a loose state, in order to prevent the excessive relaxation of a conveying belt caused by the too small tension, wrinkles and abrasion are easy to generate, under the elastic force of the compression spring, a circular ring is driven to move towards one end far away from the compression spring under the action of the force of the circular ring, the elastic plate is forced to push the square plate to move in the through hole in a direction away from the circular ring, at the moment, the outer diameter of the roller is enlarged, the tensile tension of the belt is enlarged, enough friction force is provided, no slipping between the belt and the roller is ensured, thereby realizing effective power transmission, transmission efficiency is improved, when the belt is in a tight state, the extrusion force of the belt on the square plate is enlarged, the square plate drives the elastic plate to move downwards, the circular ring moves towards the compression spring under the elastic force of the elastic plate, at the moment, the outer diameter of the roller is reduced, the tension of the belt is reduced, the internal stress of the belt is prevented from being increased due to overlarge tension, the service life of the belt is shortened, the fixing cylinder is positioned in the middle of the rotating shaft and the roller, the circular ring is connected with the compression spring in a sliding manner at the outer side of the circular ring, the elastic performance of the compression spring is utilized, and the tension of the belt is stressed according to the size of the tension force of the belt, thereby adjust square plate's position on the cylinder, and then adjust the tensioning force of conveyer belt effectively, maintain the steady operation of conveyer belt, improved production efficiency effectively, reduced trouble and cost of maintenance of conveyer belt, prevent that the conveyer belt from appearing unstable phenomena such as shake, off tracking in the operation in-process, guarantee steady and the accuracy of transportation process, the quantity of ring has two, two the ring uses compression spring as central symmetry setting, compression spring's both ends and two ring fixed connection, the outside fixedly connected with pinion rack of ring, the inner wall sliding connection of through-hole has square plate, square plate runs through the cylinder through the through-hole, the quantity of pinion rack has two, two the pinion rack uses compression spring as central symmetry setting.
Preferably, the one end fixedly connected with connecting block that compression spring was kept away from to the ring, the quantity of connecting block has a plurality ofly the connecting block uses the ring as central evenly distributed, the outside sliding connection of fixed section of thick bamboo has the slider, the connecting block has magnetism, the slider has magnetism, magnetism between connecting block and the slider is opposite, the spacing groove is close to the top of connecting block and establishes to the slope, the connecting block is established to trapezoidal, be in under the tight state that exceeds accommodation range when the belt, square plate atress is at the inside down-movement of through-hole, square plate promotes the ring through the elastic lamina and removes towards compression spring's direction, thereby the ring drives the inside slip of connecting block at the spacing groove, utilize under the effect of mutual suction between connecting block and the slider, connecting block and slider closely laminate, the slider moves towards the direction of pivot on the fixed section of thick bamboo, slider and the surface contact of pivot this moment, make the pivot stop rotating, avoid continuing to work to cause equipment to seriously damage, the slider runs through the fixed section of thick bamboo, the spacing groove has been seted up at the middle part of slider, the spacing groove runs through the slider, the connecting block passes through spacing groove and slider sliding connection, the outside fixedly connected with solid fixed ring of cylinder, solid fixed ring is for the outside symmetry is located for the solid fixed ring, the fixed ring is close to the outside and is fixed ring.
Preferably, the conveyer belt includes the belt, the inboard of belt rotates with the outside of cylinder to be connected, the inner wall fixedly connected with spacing ring of belt, the quantity of spacing ring has two, two spacing ring symmetry sets up the inside at the belt, the middle part fixedly connected with limiting plate of belt, the motor drives the pivot and rotates, the pivot drives the cylinder and rotates, meshing rotation between the square plate in the cylinder outside and the limiting plate this moment, through setting up square plate and limiting plate, increase the contact surface between belt and the running roller, thereby increase the frictional force between belt and the running roller, prevent that the conveyer belt from skidding easily, simultaneously through setting up elastic ring, solid fixed ring and spacing ring, prevent that the conveyer belt from taking place the skew, utilize elastic ring's elasticity performance, the quantity of limiting plate has a plurality of, a plurality of limiting plate evenly distributed, the contact of limiting ring and elastic ring, limiting plate and square plate rotate the meshing.
Preferably, the storage component comprises a storage box, the top fixed connection of storage box and support body, the inside fixedly connected with inclined plate of cavity of storage box, the unloading hole has been seted up to the inner wall that the storage box is close to inclined plate, the bottom that the storage box is close to the belt rotates and is connected with the bull stick, the outer wall fixedly connected with revolving plate of bull stick, the quantity of revolving plate has a plurality ofly, a plurality of revolving plate regard bull stick as central evenly distributed, the cavity inner wall rotation of storage box is connected with the dwang, the outside of storage box is provided with the driving medium, places the material inside the storage box, and the motor drives the running roller and rotates, and the running roller drives the belt and rotates, and the belt drives the limiting plate and rotates, and the limiting plate extrudees with the revolving plate contact for the revolving plate drives the dwang through the driving medium and rotates, and then the dwang drives the plectane and rotates, the round plate rotates and extrudes with the lug, so that the fixed frame drives the contact plate to move up and down, the contact plate contacts with the V-shaped plate, the V-shaped plate rotates under the action of force, at the moment, the material falls to the top of the belt along the inclined plate through the blanking hole under the action of gravity, conveying and feeding are performed, so that uniform blanking can be performed, the rotary rod is connected with the rotary rod through the transmission piece, the rotary rod is fixedly connected with the round plate close to the outer side of the storage box, the outer side of the round plate is rotationally connected with the fixed frame, the lug is fixedly connected with the middle part of the inner wall of the fixed frame, the lug is positioned at the top of the inner wall of the fixed frame, the bottom of the fixed frame is fixedly connected with the contact plate, the contact plate is positioned in the blanking hole, the outer side of the storage box close to the blanking hole is rotationally connected with the V-shaped plate, in an initial state, under the elastic performance of the reset spring, the blanking hole is plugged by two V-shaped plates, the storage box is not blanked at the moment, a reset spring is fixedly connected to one side of the V-shaped plates, which is close to the storage box, and one end, away from the V-shaped plates, of the reset spring is fixedly connected with the storage box.
The feeding method for processing the aluminum alloy section comprises the following steps:
s1, placing materials, and placing aluminum alloy profiles to be processed in a storage box according to specification classification;
S2, arranging materials, wherein the rotating plate drives a circular plate on the rotating rod to rotate, so that the contact plate is driven to move up and down, and aluminum alloy sections to be processed sequentially fall to the top of the belt through the blanking holes along the inclined plate under the action of gravity;
s3, conveying materials, wherein the motor works to drive the rotating shaft to rotate, and the rotating shaft drives the belt to rotate, so that the aluminum alloy section to be processed is driven to move;
S4, feeding materials, and conveying the aluminum alloy section to be processed to a processing position on processing equipment through a belt to complete the feeding process.
The invention provides a feeding device and a feeding method for processing an aluminum alloy section. The beneficial effects are as follows:
1. According to the feeding equipment and the feeding method for processing the aluminum alloy section, the elastic performance of the compression spring is utilized, and the position of the square plate on the roller is adjusted according to the tension force of the belt, so that the tension force of the conveying belt is effectively adjusted, the stable operation of the conveying belt is maintained, the production efficiency is effectively improved, the faults and the maintenance cost of the conveying belt are reduced, the unstable phenomena such as shaking and deviation of the conveying belt in the operation process are prevented, and the stability and the accuracy of the conveying process are ensured.
2. According to the feeding equipment and the feeding method for processing the aluminum alloy section, the square plate pushes the circular ring to move towards the direction of the compression spring through the elastic plate, so that the circular ring drives the connecting block to slide in the limiting groove, the connecting block is tightly attached to the sliding block under the action of mutual attraction between the connecting block and the sliding block, the sliding block moves towards the direction of the rotating shaft on the fixed cylinder, and at the moment, the sliding block is in contact with the outer surface of the rotating shaft, the rotating shaft stops rotating, and serious damage to equipment caused by continuous operation is avoided.
3. According to the feeding equipment and the feeding method for processing the aluminum alloy section, the square plate and the limiting plate are arranged, the contact area between the belt and the roller is increased, so that the friction force between the belt and the roller is increased, the conveyor belt is prevented from slipping easily, meanwhile, the conveyor belt is prevented from shifting by arranging the elastic ring, the fixing ring and the limiting ring, and the buffer effect is achieved by utilizing the elastic performance of the elastic ring.
4. According to the feeding equipment and the feeding method for processing the aluminum alloy section, the circular plate rotates to extrude with the convex blocks, the fixed frame drives the contact plate to move up and down, the contact plate is in contact with the V-shaped plate, the V-shaped plate rotates under the action of force, and at the moment, materials fall to the top of the belt along the inclined plate through the blanking holes under the action of gravity, and are conveyed and fed, so that uniform blanking can be achieved.
Drawings
FIG. 1 is a schematic diagram of the external structure of a feeding device and a feeding method for processing aluminum alloy sections;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of a roller structure according to the present invention;
FIG. 4 is a schematic view of a cross-sectional structure of a roller according to the present invention;
FIG. 5 is a schematic view of a partial structure of a roller according to the present invention;
FIG. 6 is a schematic view of a partial cross-sectional structure of a roller in accordance with the present invention;
FIG. 7 is a schematic view of a conveyor belt structure according to the present invention;
FIG. 8 is a schematic view of a storage assembly according to the present invention;
FIG. 9 is a schematic cross-sectional view of a storage assembly according to the present invention;
FIG. 10 is a schematic diagram of the feeding method of the present invention.
In the figure, 1, a frame body, 2, a motor, 3, a roller, 31, a rotating shaft, 32, a roller, 33, a circular ring, 34, a compression spring, 35, a spring plate, 36, a square plate, 37, a through hole, 38, a fixed cylinder, 39, a sliding block, 310, a limit groove, 311, an elastic ring, 312, a connecting block, 313, a fixed ring, 4, a transmission chain, 5, a conveying belt, 51, a belt, 52, a limit ring, 53, a limit plate, 6, a storage component, 61, a storage box, 62, a rotating rod, 63, a rotating plate, 64, a transmission member, 65, a rotating rod, 66, a circular plate, 67, a bump, 68, a fixed frame, 69, a contact plate, 610, a V-shaped plate, 611, a reset spring, 612, a blanking hole, 613 and an inclined plate.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
1-6, The invention provides a technical scheme that the feeding device for processing aluminum alloy sections comprises a frame body 1, wherein the frame body 1 is used for supporting equipment, a motor 2 is fixedly arranged on the outer side of the frame body 1, the motor 2 is externally connected with a power supply to work, the motor 2 drives a rotating shaft 31 to rotate, the rotating shaft 31 drives a roller 32, so that the roller 32 drives a belt 51 to rotate, a material at the top of the belt 51 is driven to move to a processing position, and the motor 2 penetrates through the frame body 1 and extends into the frame body 1;
The rollers 3 are fixedly connected with the output end of the motor 2, the rollers 3 are rotationally connected with the frame body 1, the rollers 3 are positioned in the middle of the frame body 1, a plurality of rollers 3 are arranged, the outer sides of the rollers 3 are rotationally connected with the transmission chains 4, and the rollers 3 are connected through the transmission chains 4;
The conveying belt 5 is rotationally connected with the plurality of rollers 3;
The storage component 6 is fixedly arranged at the top of the frame body 1, and the storage component 6 is positioned at one end of the frame body 1 close to the frame body 1;
Wherein the roller 3 comprises a rotating shaft 31, the rotating shaft 31 is fixedly connected with the output end of the motor 2, the rotating shaft 31 is rotationally connected with the frame body 1, a roller 32 is fixedly connected with the outer side of the rotating shaft 31, through holes 37 are formed in the outer side of the roller 32, the number of the through holes 37 is multiple, the through holes 37 are uniformly distributed by taking the rotating shaft 31 as the center, the inner wall of the roller 32 is fixedly connected with a fixed cylinder 38, a square plate 36 is contacted with the inner side of a belt 51, in an initial state, a compression spring 34 is compressed, under the extrusion force between the square plate 36 and the belt 51 and the elastic force of the compression spring 34, the tension of the belt 51 is in a normal range, in order to prevent the excessive loosening of a conveying belt 5 caused by the too small tension under the loose state, wrinkles and abrasion are easy to occur, under the elastic force of the compression spring 34, the circular ring 33 is acted under the action of the force, the elastic plate 35 is driven to move towards one end far away from the compression spring 34, the elastic plate 35 is forced to push the square plate 36 to move towards the direction far away from the circular ring 33 in the through hole 37, at the moment, the outer diameter of the roller 3 is enlarged, the tensile tension of the belt 51 is enlarged, enough friction force is provided to ensure that the belt 51 and the roller 32 do not slip, so that effective power transmission is realized, the transmission efficiency is improved, when the belt 51 is in a tight state, the extrusion force of the belt 51 to the square plate 36 is enlarged, the square plate 36 drives the elastic plate 35 to move downwards, the circular ring 33 moves towards the compression spring 34 under the elastic force of the elastic plate 35, at the moment, the outer diameter of the roller 3 is reduced, the tension of the belt 51 is reduced, the internal stress of the belt 51 is prevented from being increased due to overlarge tension, the service life of the belt is shortened, the fixing cylinder 38 is positioned in the middle of the rotating shaft 31 and the roller 32, the circular ring 33 is connected to the outer side of the fixing cylinder 38 in a sliding manner, the outside fixedly connected with compression spring 34 of ring 33 utilizes compression spring 34's elasticity, receive the size of tensioning force according to belt 51, thereby adjust the position of square plate 36 on cylinder 32, and then effectively adjust the tensioning force of conveyer belt 5, maintain the steady operation of conveyer belt 5, production efficiency has been effectively improved, the trouble and the cost of maintenance of conveyer belt 5 have been reduced, unstable phenomenon such as shake appears in the operation in-process of conveyer belt 5, the running is prevented, guarantee stability and the accuracy of transportation process, the quantity of ring 33 has two, two rings 33 regard compression spring 34 as central symmetry setting, compression spring 34's both ends and two rings 33 fixed connection, the outside fixedly connected with spring plate 35 of ring 33, the inner wall sliding connection of through-hole 37 has square plate 36, square plate 36 runs through cylinder 32 through the through-hole 37, the quantity of spring plate 35 has two, two spring plates 35 regard compression spring 34 as central symmetry setting.
In the second embodiment, as shown in fig. 4-6, on the basis of the first embodiment, one end of the ring 33 far away from the compression spring 34 is fixedly connected with a plurality of connection blocks 312, the connection blocks 312 are uniformly distributed with the ring 33 as the center, the outer side of the fixed cylinder 38 is slidably connected with a slide block 39, the connection blocks 312 have magnetism, the slide block 39 has magnetism, the magnetism between the connection blocks 312 and 39 is opposite, the limit groove 310 is inclined near the top of the connection block 312, the connection blocks 312 are trapezoidal, when the belt 51 is in a tight state exceeding the adjustment range, the square plate 36 is stressed to move downwards in the through hole 37, the square plate 36 pushes the ring 33 to move towards the direction of the compression spring 34 through the elastic plate 35, the ring 33 drives the connection blocks 312 to slide in the inside of the limit groove 310, the connection blocks 39 are tightly attached to the slide blocks 39 under the action of mutual attraction force between the connection blocks 312 and 39, the slide blocks 39 move towards the direction of the rotating shaft 31 on the fixed cylinder 38, the rotating shaft 31 is stopped, the device is prevented from being seriously damaged by continuing to work, the middle part 39 penetrates through the fixed cylinder 39, the fixed cylinder 310, and is symmetrically connected with the ring 313 through the fixed cylinder 313, and is connected with the outer side of the fixed cylinder 32 through the limit groove 313, and the limit groove 313 is connected with the fixed ring 32.
The conveyer belt 5 includes belt 51, the inboard of belt 51 is connected with the outside rotation of cylinder 32, the inner wall fixedly connected with spacing ring 52 of belt 51, the quantity of spacing ring 52 has two, two spacing rings 52 symmetry set up in the inside of belt 51, the middle part fixedly connected with limiting plate 53 of belt 51, motor 2 drives pivot 31 and rotates, pivot 31 drives cylinder 32 and rotates, meshing rotation between square plate 36 and the limiting plate 53 in the outside of cylinder 32 this moment, through setting up square plate 36 and limiting plate 53, increase the contact surface between belt 51 and the running roller 3, thereby increase the frictional force between belt 51 and the running roller 3, prevent conveyer belt 5 from skidding easily, simultaneously through setting up elastic ring 311, fixed ring 313 and limiting ring 52, prevent that conveyer belt 5 from taking place the skew, utilize elastic behavior of elastic ring 311, play a cushioning effect, the quantity of limiting plate 53 has a plurality of limiting plates 53 evenly distributed, the contact of limiting ring 52 and elastic ring 311, limiting plate 53 and square plate 36 rotate the meshing.
In the third embodiment, as shown in fig. 8 to 10, based on the first and second embodiments, the storage assembly 6 includes a storage box 61, the storage box 61 is fixedly connected with the top of the frame 1, an inclined plate 613 is fixedly connected in a cavity of the storage box 61, a discharging hole 612 is formed in the inner wall of the storage box 61 near the inclined plate 613, a rotating rod 62 is rotatably connected to the bottom of the storage box 61 near the belt 51, rotating plates 63 are fixedly connected to the outer wall of the rotating rod 62, a plurality of rotating plates 63 are uniformly distributed with the rotating rod 62 as a center, rotating rods 65 are rotatably connected to the inner wall of the cavity of the storage box 61, a transmission member 64 is arranged on the outer side of the storage box 61, materials are placed in the storage box 61, a motor 2 drives a roller 3 to rotate, the roller 3 drives the belt 51 to rotate, the belt 51 drives a limiting plate 53 to rotate, the limiting plate 53 contacts with the rotating plates 63 to be extruded, the rotating plate 63 drives the rotating rod 62 to rotate, thereby driving the rotating rod 65 to rotate through the transmission piece 64, and then the rotating rod 65 drives the circular plate 66 to rotate, the circular plate 66 rotates to extrude with the convex block 67, the fixed frame 68 drives the contact plate 69 to move up and down, the contact plate 69 contacts with the V-shaped plate 610, the V-shaped plate 610 rotates under the action of force, at the moment, the material falls to the top of the belt 51 along the inclined plate 613 through the blanking hole 612 under the action of gravity, the conveying and the feeding are carried out, the uniform blanking is enabled, the rotating rod 65 is connected with the rotating rod 62 through the transmission piece 64, the rotating rod 65 is fixedly connected with the circular plate 66 close to the outer side of the storage box 61, the outer side of the circular plate 66 is rotationally connected with the fixed frame 68, the convex block 67 is fixedly connected with the middle part of the inner wall of the fixed frame 68, the convex block 67 is positioned at the top of the inner wall of the fixed frame 68, the bottom of the fixed frame 68 is fixedly connected with the contact plate 69, the contact plate 69 is located in the blanking hole 612, the storage box 61 is connected with the V-shaped plate 610 in a rotating mode near the outer side of the blanking hole 612, in an initial state, under the elastic performance of the reset springs 611, the two V-shaped plates 610 block the blanking hole 612, at the moment, the storage box 61 is not blanked, one side of the V-shaped plate 610 near the storage box 61 is fixedly connected with the reset springs 611, and one end, far away from the V-shaped plates 610, of the reset springs 611 is fixedly connected with the storage box 61.
The feeding method for processing the aluminum alloy section comprises the following steps:
S1, placing materials, namely placing aluminum alloy profiles to be processed in the storage box 61 according to specification classification;
S2, arranging materials, wherein the rotating plate 63 drives the circular plate 66 on the rotating rod 65 to rotate, so that the contact plate 69 is driven to move up and down, and the aluminum alloy section to be processed sequentially falls to the top of the belt 51 along the inclined plate 613 through the blanking hole 612 under the action of gravity;
s3, conveying materials, wherein the motor 2 works to drive the rotating shaft 31 to rotate, and the rotating shaft 31 drives the belt 51 to rotate, so that the aluminum alloy section to be processed is driven to move;
s4, feeding materials, and conveying the aluminum alloy section to be processed to a processing position on processing equipment through a belt 51 to complete the feeding process.
During the use, place the material inside storage case 61, motor 2 drives running roller 3 and rotates, running roller 3 drives belt 51 and rotates, belt 51 drives limiting plate 53 and rotates, limiting plate 53 and rotating plate 63 contact take place the extrusion, make rotating plate 63 drive bull stick 62 rotation, thereby drive dwang 65 rotation through driving medium 64, and then dwang 65 drives plectane 66 rotation, plectane 66 rotates and bump 67 takes place the extrusion, make fixed frame 68 drive contact plate 69 reciprocate, contact plate 69 contacts with V-arrangement board 610, make V-arrangement board 610 receive the effect and take place the rotation, the material is under the action of gravity at this moment, fall to the top of belt 51 through unloading hole 612 along inclined plate 613, carry the material loading, make can even unloading.
The square plate 36 is in contact with the inner side of the belt 51, the compression spring 34 is in compression in an initial state, the tension force of the belt 51 is in a normal range under the action of the extrusion force between the square plate 36 and the belt 51 and the elasticity of the compression spring 34, when the tension force of the belt 51 is in a loose state, in order to prevent excessive loosening of the conveying belt 5 caused by excessively small tension force, wrinkles and abrasion are easy to occur, under the action of the elasticity of the compression spring 34, the annular ring 33 is driven to move towards one end far away from the compression spring 34 by the action of the elasticity of the compression spring 34, the square plate 36 is pushed by the elastic plate 35 to move towards one end far away from the annular ring 33 in the through hole 37, at the moment, the outer diameter of the roller 3 is increased, the tension force of the belt 51 is increased, enough friction force is provided, no slipping is ensured between the belt 51 and the roller 32, so that effective power transmission is realized, transmission efficiency is improved, when the belt 51 is in a tight state, the extrusion force of the square plate 36 against the square plate 35 is increased, the elastic plate 35 is driven to move downwards, the annular ring 33 moves towards the compression spring 34 under the action of the elasticity of the elastic plate 34, the elastic plate 35 is forced to move towards the side of the outside of the roller 3, the outside diameter of the belt 51 is reduced, and the tension force of the belt 51 is prevented from being excessively increased, and the service life is shortened.
When the belt 51 is in a tight state exceeding the adjusting range, the square plate 36 is forced to move downwards in the through hole 37, the square plate 36 pushes the circular ring 33 to move towards the direction of the compression spring 34 through the elastic plate 35, so that the circular ring 33 drives the connecting block 312 to slide in the limiting groove 310, the connecting block 312 is tightly attached to the sliding block 39 under the action of mutual attraction between the connecting block 312 and the sliding block 39, the sliding block 39 moves on the fixed cylinder 38 towards the direction of the rotating shaft 31, and at the moment, the sliding block 39 is contacted with the outer surface of the rotating shaft 31, so that the rotating shaft 31 stops rotating, and serious damage to equipment caused by continuous operation is avoided.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.