CN115556336A - Secondary stretching device is used in plastic steel strip production - Google Patents

Abstract

The invention discloses a secondary stretching device for producing a plastic steel belt, which belongs to the technical field of plastic steel belt production equipment and comprises a base plate, a feeding winding machine and a receiving winding machine, and further comprises a uniform stretching device and a fixed tightening device, wherein the feeding winding machine and the receiving winding machine are respectively arranged at two ends of the top of the base plate; the device ensures that the plastic steel belt has a plurality of stress points and is stressed uniformly in the process of stretching the plastic steel belt for the second time, and the stretched plastic steel belt does not have uneven thickness.

Description

Secondary stretching device is used in plastic steel strip production

Technical Field

The invention relates to the technical field of plastic steel belt production equipment, in particular to a secondary stretching device for producing a plastic steel belt.

Background

The PET plastic steel packaging belt is also called plastic steel belt, is processed by taking polyethylene glycol terephthalate as a main raw material, is a novel environment-friendly packaging material for replacing steel belts in the world, is developed successfully through the new materials in the years and greatly reduces the cost, and is widely used in the steel industry, the chemical fiber industry, the aluminum ingot industry, the paper industry, the brick kiln industry, the screw industry, the tobacco industry, the electronic industry, the textile industry, the wood industry and the like; the novel high-strength packing belt is a novel high-strength packing belt replacing a steel belt, and is the most widely used steel belt in the world.

When a traditional plastic steel belt stretching device stretches a plastic steel belt for the second time, two stretching modes are usually adopted, one mode is to fix two ends of the plastic steel belt and stretch the plastic steel belt towards two sides of the plastic steel belt, the other mode is to fix one end of the plastic steel belt and stretch the other end of the plastic steel belt, the two stretching modes have the common point that only one stress point is arranged when the plastic steel belt is stretched, the situation that the middle of the plastic steel belt is thin and two ends of the plastic steel belt are thick is often caused after the plastic steel belt is stretched, the stretching of the plastic steel belt is not uniform, the stretching effect is not ideal, and therefore the overall quality of the plastic steel belt is affected.

Disclosure of Invention

The embodiment of the invention provides a secondary stretching device for producing a plastic steel belt, which aims to solve the technical problem that the thickness of the stretched plastic steel belt is not uniform enough because the plastic steel belt has only one stress point when the traditional plastic steel belt stretching device stretches the plastic steel belt.

The embodiment of the invention adopts the following technical scheme: including bed plate, material loading rolling machine and receipts material rolling machine, still include even tension device and fixed tensioning device, material loading rolling machine and receipts material rolling machine set up the both ends at the bed plate top respectively, even tension device sets up on the bed plate and is located the material loading rolling machine and receive between the material rolling machine, fixed tensioning device sets up on the bed plate and is located even tension device's side, even tension device includes first subsection atress tensile component, second subsection atress tensile component and the spacing subassembly of drive, the spacing subassembly of drive sets up on the bed plate, first subsection atress tensile component and second subsection atress tensile component are the setting of staggering from top to bottom, and first subsection atress tensile component and second subsection atress tensile component all set up on the spacing subassembly of drive.

Furthermore, the first section stress-bearing stretching component and the second section stress-bearing stretching component have the same structure, the first section stress stretching assembly comprises a connecting frame and a plurality of driving stretching assemblies, the plurality of driving stretching assemblies are equidistantly arranged on the connecting frame, each driving stretching assembly comprises a fixed frame, a first motor, a first gear, a second gear, a connecting shaft, a first belt pulley, a second belt pulley, a transmission belt and a stretching rotary drum, the fixed frame is arranged at the bottom end of the connecting frame, the number of the connecting shafts is four, the four connecting shafts are arranged at the side end of the fixed frame at equal intervals and are rotationally connected, two first belt pulleys are arranged on the connecting shafts on two sides respectively, the first gear and the second gear are arranged on the other two connecting shafts and are meshed with each other, two second belt pulleys are arranged on the two connecting shafts provided with the first gear and the second gear respectively, each first belt pulley and one adjacent second belt pulley form a group, two transmission belts are provided, one transmission belt is sleeved on each group of the first belt pulley and the second belt pulley, the number of the stretching rotary drums is four, the four stretching rotary drums are respectively arranged on one sides of the two first belt pulleys and the two second belt pulleys far away from the first gear, the first motor is arranged in the fixed frame, the output end of the first motor is connected with one end of a connecting shaft arranged on the second gear, the distance between every two stretching rotary cylinders in the plurality of driving stretching assemblies is the same, and the positions of the stretching rotary drums in the first section stress stretching assembly and the second section stress stretching assembly correspond to each other one by one.

Further, the diameter of the second belt pulley is larger than that of the first belt pulley.

The heating pipe is further included, the number of the heating pipes is two, and one end, close to the opposite side, of a connecting frame in the first section stress stretching component and the second section stress stretching component is provided with one heating pipe.

Further, drive spacing subassembly includes second motor, first lead screw and gag lever post, the second motor has two, two the second motor is vertical setting respectively on the bed plate and is located the both sides of the link of first segmentation atress tension module and second segmentation atress tension module respectively, first lead screw has two, two first lead screw is vertical setting and is connected with the output of a second motor respectively to every first lead screw is connected with the side transmission of two links respectively, every the screw rotation opposite direction at middle part to upper and lower both ends from the middle part of first lead screw, the gag lever post has four, per two the gag lever post sets up respectively in the both sides of a first lead screw and every gag lever post respectively with the side of two links sliding fit from top to bottom.

Furthermore, the fixed tightening device comprises a driving tightening assembly, a first fixing assembly and a second fixing assembly, the driving tightening assembly is arranged on the base plate, the first fixing assembly and the second fixing assembly are respectively arranged at two ends of the top of the driving tightening assembly, the driving tightening assembly comprises an installation assembly and a driving assembly, the installation assembly comprises an installation plate, an installation seat, two connection rods, two sliding blocks and two electric push rods, the installation seat is arranged on the base plate, the two installation plates are respectively arranged at two sides of the installation seat, the two connection rods respectively penetrate through the installation seat, two ends of the two connection rods are respectively connected with the side ends of the two installation plates, the two sliding blocks are symmetrically arranged on the two connection rods and are in sliding fit, the two sliding blocks are respectively located at two sides of the installation seat, the first electric push rod is horizontally arranged at the bottom of one sliding block, the output end of the first electric push rod is connected with the side ends of the installation seat, and the driving assembly is arranged on the installation seat.

Furthermore, the driving assembly comprises two rotating plates, two driving rods and two fixing plates, the rotating plates are arranged at the tops of the mounting seats and are connected in a rotating mode, the two driving rods are arranged at the two ends of the rotating plates respectively, the two ends of each driving rod are connected with one end of the rotating plate and the top end of one sliding block in a rotating mode respectively, and the two fixing plates are arranged at the top ends of the two sliding blocks respectively.

Further, the first fixing assembly and the second fixing assembly are respectively arranged at the top ends of the two fixing plates, the first fixing assembly and the second fixing assembly are identical in structure, the second fixing assembly comprises a driving plate, a second electric push rod, a sliding groove plate, clamping blocks and a sliding rod, the bottom end of the driving plate is connected with the top ends of the fixing plates, the second electric push rod is horizontally arranged at the side end of the driving plate, the sliding rod is arranged on one side, provided with the second electric push rod, of the driving plate, one side of the sliding groove plate is connected with the output end of the second electric push rod, the sliding groove plate is symmetrically provided with through sliding grooves from the center to two sides, the clamping blocks are symmetrically arranged on the sliding rod and are in sliding fit, and the side ends of the clamping blocks are respectively in sliding fit with the through sliding grooves.

Furthermore, the contact end of each clamping block and the plastic steel belt is made of soft rubber.

Further, still include the garland subassembly, the garland subassembly has two, two the garland subassembly symmetry sets up in two clamp blocks in the fixed subassembly of second, two clamp blocks all are cavity setting and all are provided with a plurality of perforating holes near the one end of offside in the fixed subassembly of second, every the garland subassembly all includes third motor, second lead screw, garland and garland awl, the vertical bottom that sets up in the clamp block of third motor, the vertical setting of second lead screw is in the clamp block and the one end of second lead screw is connected with the output of third motor, the middle part of garland is connected with the transmission of second lead screw and the both sides of garland respectively with press from both sides the inside lateral wall of clamp block sliding fit from top to bottom, the garland awl has a plurality of, and is a plurality of the garland awl sets up at the top of garland and a plurality of garland awl of the garland respectively with a plurality of perforating holes one-to-ones that press from both sides the block side.

The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, a plastic steel belt to be stretched is controlled to move between a first section stress stretching component and a second section stress stretching component, a stretching rotary drum in each driving stretching component in the first section stress stretching component and the second section stress stretching component is controlled to be in contact with the surface of a plastic steel belt, the distance between each driving stretching component is consistent with the distance between each stretching rotary drum, the plastic steel belt is divided into a plurality of sections by a plurality of driving stretching components, the driving stretching components corresponding to each position in the first section stress stretching component and the second section stress stretching component respectively stretch one section of the plastic steel belt, a plurality of driving stretching components are controlled to work simultaneously, the operation principle of the driving stretching components is as follows, a first motor is controlled to work to drive a second gear to rotate, so that a first gear meshed with the driving stretching components is driven to rotate reversely, thereby driving the two second belt pulleys to rotate towards the direction far away from the opposite side simultaneously, thereby driving the two stretching drums connected with the two stretching drums to rotate on the plastic steel belt towards the direction far away from the opposite side simultaneously, playing a stretching role for the plastic steel belt between the two stretching drums while rotating, simultaneously under the action of the two transmission belts, each first belt pulley close to the second belt pulley rotates along with the first belt pulley, each first belt pulley and the second belt pulley close to the first belt pulley form a group, each group of first belt pulley and second belt pulley rotates along with the same direction and also plays a stretching role for the plastic steel belt between the two belt pulleys, in order to ensure that the stretching acting force of the first belt pulley and the second belt pulley rotating along with the same direction is the same as the stretching acting force of the two second belt pulleys rotating in opposite directions, the diameter difference of the first belt pulley and the second belt pulley can be set so as to adjust the rotating speed between the two belt pulleys, assuming that the stretching acting force of one second belt pulley is one, the tensile acting force generated by the two second belt pulleys rotating in opposite directions simultaneously is the sum of the two tensile acting forces, that is, two, if the tensile acting force generated by the first belt pulley and the second belt pulley rotating in the same direction in each group is the same as the tensile acting force generated by the first belt pulley and the second belt pulley, the rotating speed of the first belt pulley needs to be three times that of the second belt pulley, namely the diameter of the second belt pulley is three times that of the first belt pulley, the second belt pulley rotates for one circle, the first belt pulley rotates for three circles, so that the tensile acting force between the two belt pulleys reaches two, the tensile acting force generated between every two tensile drums is the same, a plurality of tensile stress points are formed in the process of secondary stretching of the plastic steel belt, the stress is uniform, and the stretched plastic steel belt cannot have the condition of uneven thickness.

Its two, first fixed subassembly and the fixed subassembly of second set up respectively on two fixed plates, play and treat the both ends of the plastic steel band of tensile part and carry out the effect of fixing, simultaneously in order to ensure that the plastic steel band is in the state of tightening all the time, control first electric putter work, drive the sliding block rather than being connected and move toward the direction of keeping away from another sliding block, simultaneously under the cooperation of rotor plate and two actuating levers, drive another sliding block and simultaneously toward keeping away from the offside direction and slide, make the fixed subassembly of first fixed subassembly and second set up on two fixed plates move toward keeping away from the offside direction simultaneously, under this effect, no matter mould the tensile how long of steel band, tighten the subassembly through the drive and can adjust in good time according to its length, make it keep the state of tightening all the time.

And thirdly, after the drawing is finished, partial plastic steel belt which finishes the drawing is wound through the material collecting winding machine, before the winding, the surface of the plastic steel belt which finishes the drawing is subjected to drawing through a drawing component, so that the friction force on the surface of the plastic steel belt is increased, a third motor is controlled to work to drive a second screw rod to rotate so as to drive a drawing plate to ascend, a plurality of drawing cones penetrate through holes to be in contact with the surface of the plastic steel belt, then the material collecting winding machine is controlled to perform the winding, the plastic steel belt is wound on the drawing cones in the winding process, so that the drawing of the plastic steel belt is realized to increase the surface friction force of the plastic steel belt, and the quality of finished products is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a side view of the uniform stretching apparatus of the present invention;

FIG. 4 is a schematic perspective view of a first segmented force-bearing tension assembly and a second segmented force-bearing tension assembly according to the present invention;

FIG. 5 is a schematic perspective view of a first segmented force-receiving stretching assembly according to the present invention;

FIG. 6 is a schematic view of a portion of a first embodiment of a drive tension assembly of the present invention;

FIG. 7 is a second schematic view of a portion of a driving tension assembly according to the present invention;

FIG. 8 is a schematic perspective view of a driving limiting assembly according to the present invention;

FIG. 9 is a schematic perspective view of the stationary tightening device, the feeding winder and the receiving winder of the present invention;

FIG. 10 is a perspective view of the stationary tightening unit of the present invention;

FIG. 11 is a perspective view of a first fixing member according to the present invention;

FIG. 12 is an exploded view of the first fastening assembly of the present invention;

FIG. 13 is a perspective view of a garland assembly of the present invention;

FIG. 14 is a cross-sectional view of a garland assembly of the present invention;

FIG. 15 is a first perspective view of the first driven tightening assembly of the present invention;

fig. 16 is a schematic perspective view of the second driving tightening assembly according to the present invention.

Reference numerals

The automatic material collecting and winding machine comprises a base plate 1, a material loading and winding machine 2, a material receiving and winding machine 3, a uniform stretching device 4, a first segmented stress stretching component 41, a connecting frame 411, a driving stretching component 42, a fixing frame 421, a first motor 422, a first gear 423, a second gear 424, a connecting shaft 425, a first belt pulley 426, a second belt pulley 427, a transmission belt 428, a stretching rotary drum 429, a second segmented stress stretching component 43, a heating pipe 44, a driving limiting component 45, a second motor 451, a first screw rod 452, a limiting rod 453, a fixing and tightening device 5, a driving and tightening component 51, a mounting component 52, a mounting plate 521, a mounting seat 522, a connecting rod 523, a sliding block 524, a first electric push rod 525, a driving component 53, a rotating plate 531, a driving rod 532, a fixing plate 533, a first fixing component 54, a second fixing component 55, a driving plate 551, a second electric push rod 552, a sliding groove plate 553, a clamping block 554, a sliding rod 555, a flower-drawing component 56, a third motor 561, a second screw rod 553, a flower-drawing plate 563, and a flower-drawing cone 564.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The embodiment of the invention provides a secondary stretching device for producing a plastic steel belt, which comprises a base plate 1, a feeding winder 2, a receiving winder 3, a uniform stretching device 4 and a fixed tensioning device 5, wherein the feeding winder 2 and the receiving winder 3 are respectively arranged at two ends of the top of the base plate 1, the uniform stretching device 4 is arranged on the base plate 1 and is positioned between the feeding winder 2 and the receiving winder 3, the fixed tensioning device 5 is arranged on the base plate 1 and is positioned at the side end of the uniform stretching device 4, the uniform stretching device 4 comprises a first segmented stressed stretching assembly 41, a second segmented stressed stretching assembly 43 and a driving limiting assembly 45, the driving limiting assembly 45 is arranged on the base plate 1, the first segmented stressed stretching assembly 41 and the second segmented stressed stretching assembly 43 are arranged in a staggered mode from top to bottom, and the first segmented stressed stretching assembly 41 and the second segmented stressed stretching assembly 43 are both arranged on the driving limiting assembly 45; when the traditional plastic steel belt stretching device is used for stretching a plastic steel belt for the second time, two stretching modes are usually adopted, one mode is to fix two ends of the plastic steel belt and stretch the plastic steel belt towards two sides simultaneously, the other mode is to fix one end of the plastic steel belt and stretch the other end of the plastic steel belt, the common stretching mode is that only one stress point of the plastic steel belt is provided when the plastic steel belt is stretched, the situation that the middle of the plastic steel belt is thin and two ends of the plastic steel belt are thick is often caused after the plastic steel belt is stretched, the stretching effect of the plastic steel belt is not uniform, and the whole quality of the plastic steel belt is influenced, the device firstly pulls one end of the plastic steel belt wound on a material winding machine 2 out to penetrate through one end of a fixed tightening device 5, then penetrates through a first subsection stress stretching component 41, a second subsection stress stretching component 43 and the other end of the fixed tightening device 5, and is finally connected with a material winding machine 3, one part of the plastic steel belt is positioned between the first sectional stressed stretching component 41 and the second sectional stressed stretching component 43, the first sectional stressed stretching component 41 and the second sectional stressed stretching component 43 are controlled to move towards the upper end and the lower end of the plastic steel belt respectively through the driving limiting component 45 until the plastic steel belt is contacted with the first sectional stressed stretching component 41 and the second sectional stressed stretching component 43, then the first sectional stressed stretching component 41 and the second sectional stressed stretching component 43 are controlled to work, the first sectional stressed stretching component 41 and the second sectional stressed stretching component 43 respectively stretch the plastic steel belt from the upper end and the lower end of the plastic steel belt simultaneously, the stretched plastic steel belt is divided into a plurality of sections, each section is stretched, a plurality of stress points are formed in the plastic steel belt stretching process, so that the plastic steel belt is uniformly stressed when stretched, the situation that a section is thin and a section is thick can not occur, and the fixed tightening device 5 fixes the two ends of the stretched plastic steel belt, and because the length of the plastic steel belt can be lengthened after stretching, the fixed tightening device 5 can ensure that the stretched plastic steel belt is always in a tightened state, thereby ensuring the smooth stretching operation.

Preferably, the first and second segmented forced drawing assemblies 41 and 43 are identical in structure, the first segmented forced drawing assembly 41 includes a connecting frame 411 and a driving drawing assembly 42, the driving drawing assembly 42 includes a plurality of driving drawing assemblies 42, the plurality of driving drawing assemblies 42 are equidistantly disposed on the connecting frame 411, each driving drawing assembly 42 includes a fixed frame 421, a first motor 422, a first gear 423, a second gear 424, a connecting shaft 425, a first pulley 426, a second pulley 427, a driving belt 428 and a drawing drum 429, the fixed frame 421 is disposed at the bottom end of the connecting frame 411, the connecting shaft 425 includes four connecting shafts 425 are equidistantly disposed at the side end of the fixed frame 421 and rotatably connected, the first pulleys 426 include two, two first pulleys 426 are disposed on the connecting shaft 425 at both sides, the first and second pulleys 423 and 424 are disposed on the other two connecting shafts 425 and engaged with each other, the second pulleys 427 include two second pulleys 427, two second pulleys 423 and second pulleys 424 are disposed on the connecting shaft 423 and the connecting shaft 425 at the side of the two connecting shafts 425, the two pulleys 423 and the two driving pulleys 427 are disposed at the side of the connecting shaft 425, the two pulleys 427 are disposed at the same distance from each other connecting shaft 422, the two pulleys 425, the two driving pulley assemblies and two pulleys 427 are disposed at the side of the two driving pulley 422, the two pulleys 425 disposed in each connecting shaft 422, the side of the two pulleys 427, the two driving pulley sets of the two pulleys 425, the two pulleys 425 and two pulleys 427 of the two pulleys 425 are disposed in each connecting shaft 422, one of the two driving pulley 422, the two driving pulley assemblies, one of the two pulleys 427, each connecting shaft 425 disposed in each connecting shaft 422, and two pulleys 427, one of the two pulleys 425 disposed in each connecting shaft 425, one side of the two pulleys 425 are disposed in each connecting shaft 425, and one side of the two pulleys 425, one of the two pulleys 425 disposed in each connecting shaft 422, and one of the two pulleys 427, one of the two pulleys 425 disposed in each driving pulley 422, one of the two pulleys 425 are disposed in each of the two pulleys 425, one of the two pulleys 427, one of the two pulleys 425 disposed in each driving pulley 422, one of the two pulleys 425, one of the two pulleys 422 and one of the two pulleys 425 disposed in each driving pulley set of the two pulleys 425, one of the two pulleys 425, and one of the two pulleys 425 disposed in each of the two pulleys 427, and the position of each of the stretch drums 429 in the first and second segmented force-receiving stretch assemblies 41 and 43 corresponds one-to-one.

Preferably, the diameter of the second pulley 427 is larger than the diameter of the first pulley 426; firstly, controlling a plastic steel belt to be stretched to move between a first subsection stress stretching component 41 and a second subsection stress stretching component 43, controlling a stretching rotary drum 429 in each driving stretching component 42 in the first subsection stress stretching component 41 and the second subsection stress stretching component 43 to be in contact with the surface of the plastic steel belt, controlling the distance between each driving stretching component 42 to be consistent with the distance between each stretching rotary drum 429, dividing the plastic steel belt into a plurality of sections by a plurality of driving stretching components 42, respectively stretching one section of the plastic steel belt by the driving stretching components 42 corresponding to each position in the first subsection stress stretching component 41 and the second subsection stress stretching component 43, controlling a plurality of driving stretching components 42 to work simultaneously, controlling a first motor 422 to work to drive a second gear 424 to rotate so as to drive a first gear 423 meshed with the driving stretching components to rotate in the opposite direction, thereby driving the two second pulleys 427 to rotate in the direction away from the opposite side simultaneously, thereby driving the two stretching drums 429 connected therewith to rotate on the plastic steel belt in the direction away from the opposite side simultaneously, and simultaneously playing a stretching role for the plastic steel belt between the two stretching drums 427 while rotating, and simultaneously under the action of the two transmission belts 428, each first pulley 426 close to the second pulley 427 rotates in the same direction as the plastic steel belt, each first pulley 426 and each second pulley 427 close to the first pulley 426 form a group, each group of first pulley 426 and second pulley 427 rotates in the same direction as the second pulley 427 and also plays a stretching role for the plastic steel belt between the two pulleys, in order to ensure that the stretching acting force of the first pulley 426 and second pulley 427 rotating in the same direction is the same as the stretching acting force of the two second pulleys 427 rotating in opposite directions, the diameter difference between the first pulley 426 and the second pulley 427 can be set so as to adjust the rotating speed therebetween, assuming that the stretching force of one second pulley 427 is one, the stretching force generated by the two second pulleys 427 rotating in opposite directions simultaneously should be the sum of the two, that is, two, if the stretching force generated by the co-rotation of each set of the first pulley 426 and the second pulley 427 is the same, the rotation speed of the first pulley 426 needs to be three times that of the second pulley 427, that is, the diameter of the second pulley 427 is three times that of the first pulley 426, the second pulley 427 makes one turn, and the first pulley 426 makes three turns, so that the stretching force between the two pulleys is two, so that the stretching force generated between the two stretching drums 429 is the same, so as to ensure that the plastic steel belt has multiple stretching force bearing points and is uniformly stressed during the second stretching, and the stretched plastic steel belt does not have uneven thickness.

Preferably, the heating device further comprises two heating pipes 44, and one heating pipe 44 is arranged at one end, close to the opposite side, of the connecting frame 411 in the first segment stressed stretching assembly 41 and the second segment stressed stretching assembly 43; the two heating pipes 44 are respectively located at the upper and lower ends of the plastic steel strip to be stretched, and heat the surface of the plastic steel strip before stretching to ensure that the plastic steel strip can be smoothly stretched.

Preferably, the driving limiting assembly 45 includes two second motors 451, two first lead screws 452 and two limiting rods 453, the two second motors 451 are respectively vertically disposed on the base plate 1 and are respectively located at two sides of the connecting frames 411 of the first segmented forced stretching assembly 41 and the second segmented forced stretching assembly 43, the two first lead screws 452 are vertically disposed and are respectively connected with an output end of the second motor 451, each first lead screw 452 is respectively in transmission connection with side ends of the two connecting frames 411, the rotation directions of the threads of each first lead screw 452 from the middle portion to the upper and lower ends are opposite, the number of the limiting rods 453 is four, each two limiting rods 453 are respectively disposed at two sides of one first lead screw 452, and each limiting rod 453 is respectively in up-down sliding fit with the side ends of the two connecting frames 411; when the plastic steel belt is fed between the first segmented stress-bearing stretching assembly 41 and the second segmented stress-bearing stretching assembly 43, the first segmented stress-bearing stretching assembly 41 and the second segmented stress-bearing stretching assembly 43 are in a state of being away from each other so as to facilitate feeding, when stretching is to be conducted, the first segmented stress-bearing stretching assembly 41 and the second segmented stress-bearing stretching assembly 43 are required to be controlled to simultaneously move towards the upper end and the lower end of the plastic steel belt until the plastic steel belt is contacted with the upper end and the lower end of the plastic steel belt, when the first segmented stress-bearing stretching assembly 41 and the second segmented stress-bearing stretching assembly 43 are required to be controlled to move, the second motor 451 is controlled to work to drive the first screw rod 452 to rotate, and because the threads at the connection positions of the two connecting frames 411 and the first screw rod 452 are oppositely arranged, the first screw rod 452 can be controlled to simultaneously move towards the opposite side direction or move towards the direction away from each other according to the difference of the rotation direction of the first screw rod 452.

Preferably, the fixed tightening device 5 includes a driving tightening assembly 51, a first fixing assembly 54 and a second fixing assembly 55, the driving tightening assembly 51 is disposed on the base plate 1, the first fixing assembly 54 and the second fixing assembly 55 are disposed at two ends of the top of the driving tightening assembly 51 respectively, the driving tightening assembly 51 includes a mounting assembly 52 and a driving assembly 53, the mounting assembly 52 includes a mounting plate 521, a mounting seat 522, two connecting rods 523, two sliding blocks 524 and a first electric push rod 525, the mounting seat 522 is disposed on the base plate 1, the two mounting plates 521 are disposed at two sides of the mounting seat 522 respectively, the two connecting rods 523 are disposed, the two connecting rods 523 penetrate through the mounting seat 522 respectively, two ends of the two connecting rods 523 are connected with side ends of the two mounting plates 521 respectively, the two sliding blocks 524 are symmetrically disposed on the two connecting rods 523 and are in sliding fit, the two sliding blocks 524 are disposed at two sides of the mounting seat 522 respectively, the first electric push rod 524 is disposed at the bottom of one of the mounting seat 522, an output end 525 of the first electric push rod 524 is connected with the mounting seat 522, and an output end 525 of the mounting seat 53 is disposed on the mounting seat 522.

Preferably, the driving assembly 53 includes two driving levers 532, two rotating plates 531, two fixing plates 533, and two driving levers 532, the rotating plates 531 are disposed on the top of the mounting base 522 and rotatably connected to the mounting base, two driving levers 532 are disposed at two ends of the rotating plates 531, two ends of each driving lever 532 are rotatably connected to one end of the rotating plate 531 and the top end of one sliding block 524, two fixing plates 533 are disposed at two ends of the two sliding blocks 524, respectively; the first fixing component 54 and the second fixing component 55 are respectively arranged on the two fixing plates 533, so as to fix two ends of the plastic steel belt with a stretching part, and simultaneously, in order to ensure that the plastic steel belt is always in a tightening state, the first electric push rod 525 is controlled to work, the sliding block 524 connected with the first fixing component is driven to move in a direction away from the other sliding block 524, and simultaneously, under the matching of the rotating plate 531 and the two driving rods 532, the other sliding block 524 is driven to simultaneously slide in a direction away from the opposite side, so that the first fixing component 54 and the second fixing component 55 arranged on the two fixing plates 533 can simultaneously move in a direction away from the opposite side, under the effect, no matter how long the plastic steel belt is stretched, the tightening component 51 can be timely adjusted according to the length thereof by driving, and the tightening component can be always kept in a tightening state.

Preferably, the first fixing assembly 54 and the second fixing assembly 55 are respectively disposed at the top ends of the two fixing plates 533, the first fixing assembly 54 and the second fixing assembly 55 have the same structure, the second fixing assembly 55 includes a driving plate 551, a second electric push rod 552, a sliding slot plate 553, a clamping block 554 and a sliding rod 555, the bottom end of the driving plate 551 is connected with the top end of the fixing plate 533, the second electric push rod 552 is horizontally disposed at the side end of the driving plate 551, the sliding rod 555 is disposed at the side of the driving plate 551 where the second electric push rod 552 is disposed, one side of the sliding slot plate 553 is connected with the output end of the second electric push rod 552, the sliding slot plate 553 is symmetrically provided with through sliding slots from the center to both sides, the clamping block 554 has two, the two clamping blocks 554 are symmetrically disposed on the sliding rod 555 and are in sliding fit, and the side ends of the two clamping blocks 554 are respectively in sliding fit with the two through sliding slots; the plastic steel belt with stretching passes through the first fixing component 54 and the second fixing component 55 respectively, two ends of the plastic steel belt are located between the two clamping blocks 554 in the first fixing component 54 and the second fixing component 55 respectively, when the plastic steel belt needs to be stretched, the second electric push rod 552 is controlled to work to drive the sliding chute plate 553 to slide, under the effect of the through sliding chute, the two clamping blocks 554 are driven to move on the sliding rod 555 towards the opposite side direction simultaneously until the plastic steel belt abuts against the plastic steel belt, and therefore the effect of clamping and fixing the end portion of the plastic steel belt is achieved.

Preferably, the contact end of each clamping block 554 and the plastic steel belt is made of soft rubber; the contact ends of the clamping blocks 554 and the plastic steel belt are made of soft rubber, the material is good in ductility, and friction force between the clamping blocks 554 and the plastic steel belt can be increased, so that the fixing effect of the plastic steel belt is improved.

Preferably, the clamping device further comprises two broaching assemblies 56, the two broaching assemblies 56 are symmetrically arranged in two clamping blocks 554 of the second fixing assembly 55, the two clamping blocks 554 of the second fixing assembly 55 are both arranged in a hollow manner, a plurality of through holes are formed in one end, close to the opposite side, of each clamping block, each broaching assembly 56 comprises a third motor 561, a second lead screw 562, a broaching plate 563 and a broaching cone 564, the third motor 561 is vertically arranged at the bottom end inside the clamping block 554, the second lead screw 562 is vertically arranged in the clamping block 554, one end of the second lead screw 562 is connected with the output end of the third motor 561, the middle of the broaching plate 563 is in transmission connection with the second lead screw 562, two sides of the broaching plate 563 are respectively in up-and-down sliding fit with the side wall inside the clamping block 554, the plurality of broaching cones are provided, the plurality of broaching cones 564 are arranged at the top of the broaching plate 563, and the plurality of broaching cones 564 are respectively in one-to-one correspondence with the side ends of the through holes of the clamping block 554; after the plastic steel strip is stretched, a part of the plastic steel strip which is stretched is rolled up through the material receiving rolling machine 3, before the plastic steel strip is rolled up, the surface of the plastic steel strip which is stretched is subjected to embossing through the embossing component 56 so as to increase the friction force of the surface of the plastic steel strip, the third motor 561 is controlled to work to drive the second screw rod 562 to rotate so as to drive the embossing plate 563 to ascend, a plurality of embossing cones 564 penetrate through the through holes to be in contact with the surface of the plastic steel strip, then the material receiving rolling machine 3 is controlled to roll up, the plastic steel strip is wound up and is scratched from the embossing cones 564, so that the embossing of the plastic steel strip is realized to increase the surface friction force of the plastic steel strip, and the quality of a finished product is improved.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a secondary stretching device is used in plastic steel strip production, includes bed plate (1), material loading rolling machine (2) and receipts material rolling machine (3), its characterized in that still includes even stretching device (4) and fixed tension device (5), material loading rolling machine (2) and receipts material rolling machine (3) set up respectively at the both ends at bed plate (1) top, even stretching device (4) set up on bed plate (1) and lie in between material loading rolling machine (2) and the receipts material rolling machine (3), fixed tension device (5) set up on bed plate (1) and lie in the side of even stretching device (4), even stretching device (4) include first subsection atress tensile subassembly (41), second subsection atress tensile subassembly (43) and drive spacing subassembly (45), drive spacing subassembly (45) set up on bed plate (1), first subsection atress tensile subassembly (41) and second subsection atress tensile subassembly (43) are the setting of being from top to bottom to first subsection atress tensile subassembly (41) and first subsection atress tensile subassembly (43) and drive spacing subassembly (45) and all stagger setting up on drive spacing subassembly (45).

2. The secondary stretching device for producing the plastic steel belt as claimed in claim 1, wherein the first segmented forced stretching assembly (41) and the second segmented forced stretching assembly (43) have the same structure, the first segmented forced stretching assembly (41) comprises a connecting frame (411) and a driving stretching assembly (42), the driving stretching assembly (42) comprises a plurality of driving stretching assemblies (42) which are equidistantly arranged on the connecting frame (411), each driving stretching assembly (42) comprises a fixed frame (421), a first motor (422), a first gear (423), a second gear (424), a connecting shaft (425), a first belt pulley (426), a second belt pulley (427), a transmission belt (428) and a stretching drum (429), the fixed frame (421) is arranged at the bottom end of the connecting frame (411), the connecting shafts (425) comprise four connecting shafts (425), the four connecting shafts (425) are equidistantly arranged at the side end of the connecting shaft (421) and rotatably connected, the first belt pulley (426) comprises two first belt pulleys, the two first belt pulleys (423) are arranged at two sides of the fixed frame (423), the second belt (425) is arranged at two sides of the fixed frame (425), the second belt (423), the second belt (425) is arranged at two sides of the fixed frame (425), and the second belt (425), the second belt (425) and the second belt pulley (425) is arranged at two belt pulleys (425) and the second pulley (425) respectively arranged at two connecting shafts (425) and the fixed frame (427), and the second pulley (425) are arranged at two pulley (425) and the second pulley (425) respectively ) And two connecting shafts (425) of a second gear (424), wherein each first belt pulley (426) and an adjacent second belt pulley (427) form a group, the number of the driving belts (428) is two, one driving belt (428) is sleeved on each group of the first belt pulley (426) and the second belt pulley (427), the number of the stretching drums (429) is four, the four stretching drums (429) are respectively arranged on one sides, far away from the first gear (423), of the two first belt pulleys (426) and the two second belt pulleys (427), the first motor (422) is arranged in the fixed frame (421), the output end of the first motor (422) is connected with one end of the connecting shaft (425) arranged on the second gear (424), the distance between each stretching drum (429) in the plurality of driving stretching assemblies (42) is the same, and the positions of each stretching drum (429) in the first segmented forced stretching assembly (41) and the second segmented stretching assembly (43) correspond to one another.

3. The secondary stretching device for producing the plastic steel belt as claimed in claim 2, wherein the diameter of the second pulley (427) is larger than the diameter of the first pulley (426).

4. The secondary stretching device for producing the plastic steel belt as claimed in claim 2, further comprising two heating pipes (44), wherein one end of the connecting frame (411) of the first segment stressed stretching assembly (41) and the second segment stressed stretching assembly (43) close to the opposite side is provided with one heating pipe (44).

5. The secondary stretching device for producing the plastic steel belt as claimed in claim 2, wherein the driving limiting assembly (45) comprises two second motors (451), two first lead screws (452) and two limiting rods (453), the two second motors (451) are respectively vertically arranged on the base plate (1) and are respectively positioned on two sides of the connecting frame (411) of the first segmented stress-bearing stretching assembly (41) and the second segmented stress-bearing stretching assembly (43), the two first lead screws (452) are respectively vertically arranged and are respectively connected with the output end of one second motor (451), each first lead screw (452) is respectively in transmission connection with the side ends of the two connecting frames (411), the thread rotating directions of each first lead screw (452) from the middle part to the upper and lower ends are opposite, the four limiting rods (453) are respectively arranged on two sides of one first lead screw (452), and each two limiting rods (453) are respectively matched with the upper and lower side ends of the two connecting frames (411) in a sliding manner.

6. The secondary stretching device for producing the plastic steel belt as claimed in claim 1, wherein the fixed tightening device (5) comprises a driving tightening component (51), a first fixing component (54) and a second fixing component (55), the driving tightening component (51) is disposed on the base plate (1), the first fixing component (54) and the second fixing component (55) are respectively disposed at two ends of the top of the driving tightening component (51), the driving tightening component (51) comprises a mounting component (52) and a driving component (53), the mounting component (52) comprises a mounting plate (521), a mounting seat sliding block (522), a connecting rod (523), two connecting rods (524) and a first electric push rod (525), the mounting seat (522) is disposed on the base plate (1), the mounting plate (521) has two, the two mounting plates (521) are respectively disposed at two sides of the mounting seat (522), the two connecting rods (523) are respectively passed through the mounting seat (522), the two connecting rods (523) are respectively disposed at two ends of the mounting plate (521) and are respectively disposed at two sliding blocks (524) of the two sliding blocks (524) which are symmetrically disposed on two sliding blocks (524) of the mounting seat sliding blocks (524), the first electric push rod (525) is horizontally arranged at the bottom of one sliding block (524), the output end of the first electric push rod (525) is connected with the side end of the mounting seat (522), and the driving assembly (53) is arranged on the mounting seat (522).

7. The secondary stretching device for producing plastic steel strip as claimed in claim 6, wherein said driving assembly (53) comprises a rotating plate (531), two driving rods (532) and two fixing plates (533), said rotating plate (531) is disposed on top of the mounting seat (522) and rotatably connected thereto, said two driving rods (532) are disposed at two ends of the rotating plate (531), and two ends of each driving rod (532) are rotatably connected to one end of the rotating plate (531) and top end of one sliding block (524), said two fixing plates (533) are disposed at two ends of two sliding blocks (524), respectively.

8. A secondary stretching apparatus for manufacturing a plastic-steel strip as claimed in claim 7, wherein said first fixing assembly (54) and said second fixing assembly (55) are respectively disposed at the top ends of two fixing plates (533), said first fixing assembly (54) and said second fixing assembly (55) are identical in structure, said second fixing assembly (55) comprises a driving plate (551), a second electric push rod (552), a sliding slot plate (553), a clamping block (554) and a sliding rod (555), the bottom end of said driving plate (551) is connected with the top end of the fixing plate (533), said second electric push rod (552) is horizontally disposed at the side end of the driving plate (551), said sliding rod (555) is disposed at the side of the driving plate (551) where the second electric push rod (552) is disposed, one side of said sliding slot plate (553) is connected with the output end of the second electric push rod (552), said sliding slot plate (553) is symmetrically disposed with through sliding slots from the center to both sides, said clamping block (554) has two, said two blocks (554) are disposed symmetrically on the sliding rod (553) and are slidably engaged with said two sliding slots (555) respectively and are engaged with said two side ends of the clamping block (554).

9. The secondary stretching device for producing the plastic steel strip as claimed in claim 8, wherein the contact end of each clamping block (554) and the plastic steel strip is made of soft rubber.

10. The secondary stretching device for producing the plastic steel belt as claimed in claim 8, further comprising two broaching assemblies (56), wherein the two broaching assemblies (56) are symmetrically arranged in two clamping blocks (554) of a second fixing assembly (55), the two clamping blocks (554) of the second fixing assembly (55) are both arranged in a hollow manner and are provided with a plurality of through holes near opposite ends, each broaching assembly (56) comprises a third motor (561), a second lead screw (562), a broaching plate (563) and a broaching cone (564), the third motor (561) is vertically arranged at the bottom end inside the clamping block (554), the second lead screw (562) is vertically arranged in the clamping block (554), one end of the second lead screw (562) is connected with the output end of the third motor (561), the middle part of the broaching clamping plate (563) is in transmission connection with the second lead screw (562), two sides of the broaching plate (563) are respectively matched with the through holes inside the clamping block (554), and the plurality of the broaching cones (564) are respectively arranged at the top and are respectively matched with the side walls of the broaching blocks (554), and the plurality of the broaching cones (564) are respectively arranged at the top and are respectively corresponding to the top ends of the broaching clamping plate (554).

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