A multi-section pultrusion pulling device

Abstract

The application provides a multi-section pultrusion traction device, which belongs to the field of pultrusion traction equipment, and comprises a support frame, a plurality of traction belt units, the plurality of traction belt units are arranged in an equiangular circular array along the center line of a profile to be pulled, the profile to be pulled is located in the middle of the plurality of traction belt units, and traction blocks of the traction belt units are attached to the outer wall of the profile to be pulled; a plurality of telescopic units, the plurality of traction belt units are respectively installed on the plurality of telescopic units, and the telescopic ends of the telescopic units drive the traction blocks of the traction belt units to move towards the profile to be pulled. Through the plurality of traction belt units and the plurality of telescopic units, the positions of the traction belt units can be adjusted respectively, so that the traction blocks of the traction belt units can be attached to the outer wall of the profile to be pulled with different sections, and the profiles with different sections can be pulled.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of pultrusion traction equipment, and particularly relates to a multi-section pultrusion traction device. BACKGROUND

[0002] The pultrusion process is a process method for producing a composite material profile by resin impregnation of continuous fibers or fabrics thereof under the traction of a traction device and heating through a forming die to solidify the resin. In pultrusion, the traction device is usually required to continuously pull the pultruded profile.

[0003] The existing track-type traction device clamps the profile by the upper and lower clamping mode. When the conventional cylindrical profile is pulled, better work can be performed. However, when different section profiles (such as triangular, hexagonal, semicircular, etc.) are pulled, the upper and lower clamping mode will easily cause product damage, and even cannot pull.

[0004] Therefore, the existing traction device has the following deficiencies: the section of the pulled profile is too single, and more kinds of section profiles cannot be pulled at the same time. SUMMARY

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the present application is to provide a multi-section pultrusion traction device, which is used to solve the problem that the section of the pulled profile is too single in the prior art, and more kinds of section profiles cannot be pulled at the same time.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application provides a multi-section pultrusion traction device, which comprises:

[0007] a support frame,

[0008] a plurality of traction track units, the plurality of traction track units are arranged in an equiangular circular array along the center line of a profile to be pulled, the profile to be pulled is located in the middle of the plurality of traction track units, and the traction blocks of the traction track units are in close contact with the outer wall of the profile to be pulled;

[0009] a plurality of extension units, the plurality of traction track units are respectively installed on the plurality of extension units, the plurality of extension units are all fixedly installed on the support frame, and the extension end of the extension unit drives the traction block of the traction track unit to move towards the profile to be pulled.

[0010] As an optional solution, the number of the traction track units is three.

[0011] As an optional solution, the traction track unit comprises a transmission track, a first track wheel, a second track wheel, a plurality of clamping blocks, a track mounting frame and a pressing plate.

[0012] The first track wheel and the second track wheel are both rotationally installed on a track mounting frame, and the rotation axis of the first track wheel and the rotation axis of the second track wheel are both perpendicular to the center line of the profile to be pulled;

[0013] The transmission track is sleeved outside the first track wheel and the second track wheel;

[0014] The clamping blocks are pulling blocks of the pulling track unit, and a plurality of clamping blocks are fixedly installed on the transmission track;

[0015] The transmission track of the plurality of pulling track units drives the clamping blocks to pull the profile to be pulled;

[0016] One end surface of the pressing plate is fixedly connected to the track mounting frame close to the side wall of the profile to be pulled, the other end surface of the pressing plate is in close contact with the inner wall of the transmission track, and the side wall of the pressing plate in close contact with the transmission track is located on the side of the transmission track close to the profile to be pulled;

[0017] The telescopic end of the telescopic unit is connected to the track mounting frame.

[0018] As an optional solution, the telescopic unit comprises a first telescopic power source, a second telescopic power source, a sliding block and a mounting plate;

[0019] The first telescopic power source and the second telescopic power source are both fixedly installed on the support frame, the telescopic direction of the first telescopic power source is parallel to the telescopic direction of the second telescopic power source, the telescopic direction of the first telescopic power source is perpendicular to the center line direction of the profile to be pulled, and the telescopic direction of the first telescopic power source is also perpendicular to the rotation axis direction of the first track wheel;

[0020] The mounting plate is rotationally connected to the telescopic end of the first telescopic power source, and the rotation axis between the mounting plate and the telescopic end of the first telescopic power source is a first straight line;

[0021] The sliding block is rotationally connected to the telescopic end of the second telescopic power source, the rotation axis between the sliding block and the telescopic end of the second telescopic power source is a second straight line, the second straight line, the first straight line and the rotation axis of the first track wheel are all parallel to each other, one end of the sliding block is slidingly connected to the mounting plate, and the sliding direction of the sliding block is perpendicular to the rotation axis direction of the first track wheel;

[0022] The other end of the mounting plate is connected to the track mounting frame.

[0023] As an optional solution, the mounting plate and the track mounting frame are connected through an angle adjusting unit, and the angle adjusting unit comprises a sliding block, a sliding groove, a mounting block and a threaded rod;

[0024] The sliding groove is arranged on the track mounting frame, and a guide direction of the sliding groove is parallel to an extension direction of the first extension power source;

[0025] The sliding block is slidingly arranged in the sliding groove, and the mounting block is rotationally connected with the sliding block, and a rotation axis between the mounting block and the sliding block is parallel to a center line of the profile to be towed;

[0026] The threaded rod penetrates the mounting plate and is threadedly connected with the mounting plate, the threaded rod is rotationally connected with the mounting block, and a rotation axis of the threaded rod is parallel to a rotation axis of the first track wheel;

[0027] The mounting plate is rotationally connected with the track mounting frame, and a rotation axis between the mounting plate and the track mounting frame is parallel to the center line of the profile to be towed.

[0028] As an optional solution, the towing device further comprises a synchronous start-stop unit for driving a plurality of the towing track units to start and stop synchronously, and the synchronous start-stop unit comprises a main power assembly and a plurality of power transmission assemblies;

[0029] Each of the plurality of power transmission assemblies comprises a power output end and a power input end, and the power output end drives the first track wheel to rotate;

[0030] The power output end of the main power assembly simultaneously provides rotating power to the power input ends of the plurality of power transmission assemblies.

[0031] As an optional solution, the plurality of power transmission assemblies are circularly arranged around the center line of the profile to be towed, and each power transmission assembly comprises a universal transmission shaft and a transmission box;

[0032] A rotating power input shaft of the universal transmission shaft is rotationally arranged on the support frame, a rotating power output shaft of the universal transmission shaft drives a power input shaft of the transmission box to rotate, a power output shaft of the transmission box drives the first track wheel to rotate, and the transmission box is fixedly arranged on the track mounting frame;

[0033] The rotating power input shafts of the plurality of universal transmission shafts are parallel to each other.

[0034] As an optional solution, the main power assembly comprises a motor, a plurality of chain discs and a chain;

[0035] The motor is fixedly arranged on the support frame, and an axis of an output shaft of the motor is parallel to an axis of the rotating power input shaft of the universal transmission shaft;

[0036] Each of the plurality of chain discs is fixedly arranged on the rotating power input shaft of each universal transmission shaft and the output shaft of the motor, and the chain is sleeved outside each chain disc.

[0037] To sum up, the multi-sectional pultrusion traction device has at least the following beneficial effects:

[0038] 1、The traction crawler unit and the telescopic unit are arranged, the positions of the traction crawler units can be adjusted respectively, the traction blocks of the traction crawler units can be attached to the outer walls of the profiles with different sections to be pulled, and the profiles with different sections can be pulled;

[0039] 2、The synchronous start-stop unit is arranged, the traction crawler units can be started synchronously, and the outer walls of the profiles to be pulled are prevented from being damaged due to asynchronous starting of the traction crawler units;

[0040] 3、The angle adjusting unit is arranged, the traction crawler units can be adjusted in the up-down angle, the positions of the traction blocks of the traction crawler units can be further adjusted, and the profiles with more sections can be pulled. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The structure schematic diagram of the present application is shown;

[0042] Figure 2 The structure schematic diagram of the present application is shown Figure 1 The partial enlarged view of A in the present application is shown;

[0043] Figure 3 The structure schematic diagram of the present application is shown

[0044] Figure 4 The structure schematic diagram of the present application is shown Figure 3 The partial enlarged view of B in the present application is shown;

[0045] Figure 5 The structure schematic diagram of the universal transmission shaft of the present application is shown;

[0046] Figure 6 The structure schematic diagram of the transmission box of the present application is shown;

[0047] Figure 7 The structure sectional view of the slider, the mounting plate, the angle adjusting unit and the crawler mounting frame of the present application is shown;

[0048] Figure 8 The structure schematic diagram of the present application is shown Figure 7 The partial enlarged view of C in the present application is shown;

[0049] Figure 9 The structure schematic diagram of the pressing plate, the first connecting block, the second connecting block and the screw rod of the present application is shown;

[0050] Figure 10Figure showing the profile of the section that can be drawn by the present invention;

[0051] Figure 11 Figure showing the profile of the section that can be drawn by the present invention;

[0052] Figure: 1. Profile to be drawn;

[0053] 2. Support frame;

[0054] 301. Drive track; 302. First track wheel; 303. Second track wheel; 304. Clamping block; 305. Track mounting frame;

[0055] 401. First telescopic power source; 402. Second telescopic power source; 403. Mounting plate; 404. Sliding block;

[0056] 501. Sliding block; 502. Slotted guide; 503. Mounting block; 504. Threaded rod;

[0057] 601. Universal drive shaft; 602. Drive box; 603. Motor; 604. Chain disc; 605. Chain;

[0058] 701. Pressing plate; 702. First connecting block; 703. Second connecting block; 704. Screw rod. DETAILED DESCRIPTION

[0059] The following embodiments of the present invention are described by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in the specification.

[0060] Please refer to Figures 1 to 11 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to illustrate the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions that the present invention can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that the present invention can achieve, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not intended to limit the scope of the present invention, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present invention.

[0061] The following embodiments are only for illustration. The embodiments can be combined, and are not limited to the content shown in the following single embodiment.

[0062] Please refer to Figures 1 to 9The application provides a multi-sectional pultrusion traction device which comprises:

[0063] A support frame 2 is provided with a profile inlet and a profile outlet, the profile to be pulled in from the profile inlet and separated from the profile outlet;

[0064] A plurality of traction belt units are arranged in an equiangular circular array along the center line of the profile to be pulled in, the profile to be pulled in is located in the middle of the plurality of traction belt units, and the traction blocks of the traction belt units are in close contact with the outer wall of the profile to be pulled in;

[0065] The number of the traction belt units is not limited herein, and the number can be three, four, five, six or the like, and the drawings in the specification are schematic views of three traction belt units;

[0066] Meanwhile, in order to facilitate the traction of the profile to be pulled in, the traction belt units are located between the profile inlet and the profile outlet;

[0067] A plurality of telescopic units are provided, the plurality of traction belt units are respectively installed on the plurality of telescopic units, the plurality of telescopic units are fixedly installed on the support frame 2, the telescopic end of the telescopic unit drives the traction block of the traction belt unit to move towards the profile to be pulled in, the number of the telescopic units is the same as that of the traction belt units, and the telescopic units correspond to the traction belt units one by one.

[0068] When the profile to be pulled in is pulled, the telescopic units are started to drive the traction blocks of the traction belt units to move towards the outer wall of the profile to be pulled in, so that the traction blocks of the traction belt units can clamp the profile to be pulled in, the profile to be pulled in is pulled by starting the traction belt units, and since the telescopic distance of each telescopic unit can be controlled, the traction blocks of the traction belt units can clamp profiles with different sections;

[0069] For example, the section of the profile to be pulled in can be circular, equilateral triangular, hexagonal, arc-linear (the straight line is parallel to the diameter line of the arc) or the like, and the Figure 10 in the drawings of the specification is a section of the profile that can be pulled in by the application.

[0070] In the embodiment, please refer to Figures 1 to 9 , the traction belt unit comprises a transmission belt 301, a first belt wheel 302, a second belt wheel 303, a plurality of clamping blocks 304, a belt mounting frame 305 and a pressing plate.

[0071] The first track wheel 302 and the second track wheel 303 are both rotationally installed on the track mounting frame 305, the rotation axis of the first track wheel 302 and the rotation axis of the second track wheel 303 are both perpendicular to the center line of the profiled material 1 to be towed, the first track wheel 302 is fixedly installed on a first rotating shaft, the first rotating shaft is rotationally installed on the track mounting frame 305, the second track wheel 303 is fixedly installed on a second rotating shaft, and the second rotating shaft is rotationally installed on the track mounting frame 305;

[0072] The transmission track 301 is sleeved outside the first track wheel 302 and the second track wheel 303;

[0073] The clamping block 304 is a towing block of the towing track unit, a plurality of clamping blocks 304 are fixedly installed on the transmission track 301, and each clamping block is arrayed along the outer contour line of the transmission track 301 and fixedly connected to the transmission track 301;

[0074] A plurality of transmission tracks 301 drive the clamping blocks 304 to tow the profiled material 1 to be towed;

[0075] One end surface of the pressing plate 701 is fixedly connected to the side wall of the track mounting frame 305 close to the side wall of the profiled material 1 to be towed, the other end surface of the pressing plate 701 is in close contact with the inner wall of the transmission track 301, the side wall of the pressing plate 701 in close contact with the transmission track 301 is located on the side of the transmission track 301 close to the profiled material 1 to be towed, the pressing plate 701 makes the clamping block 304 in close contact with the outer wall of the profiled material 1 to be towed through the transmission track 301, and at this time, the clamping block 304 and the transmission track 301 are located between the pressing plate 701 and the profiled material 1 to be towed;

[0076] The telescopic end of the telescopic unit is connected with the track mounting frame 305.

[0077] The telescopic end of the telescopic unit is extended and drives the track mounting frame 305 to move towards the profiled material 1 to be towed, thereby driving the transmission track 301 and the clamping block 304 to move towards the profiled material 1 to be towed, making the clamping block 304 in close contact with the outer wall of the profiled material 1 to be towed, the first track wheel 302 and the second track wheel 303 rotate, and the transmission track 301 can be driven to move, thereby driving the clamping block 304 to tow the profiled material 1 to be towed.

[0078] In the embodiment, the first track wheel 302 and the second track wheel 303 are sprockets, the transmission track 301 is a chain, the chain is engaged with the sprocket, the pressing plate 701 is attached to the inner wall of the chain, the first connecting block 702 is fixedly installed on the chain link of the chain, the second connecting block 703 is outside the first connecting block 702, the axes of the two screw rods 704 are parallel to each other, the two screw rods 704 are both penetrating through the upper and lower end faces of the first connecting block 702 and are rotationally connected with the second connecting block 703, the screw rod 704 is in threaded connection with the first connecting block 702, the rotation axis of the screw rod 704 is perpendicular to the end face of the clamping block 304 close to the profile 1 to be pulled, the clamping block 304 is located outside the second connecting block 703, and the clamping block 304 is connected with the second connecting block 703 through a pressure sensor.

[0079] That is, from inside to outside, the clamping block 304, the pressure sensor, the second connecting block 703 and the first connecting block 702 are arranged in sequence.

[0080] Meanwhile, the screw rod 704 can be fixed with a bolt head at the end away from the second connecting block 703, the bolt head is a regular hexagonal prism block or a cube block, and the bolt head is matched with an open wrench, a torque wrench or an electric wrench, so that the screw rod 704 can be conveniently screwed and rotated.

[0081] Through the pressure sensor, the clamping force of each clamping block 304 on the profile 1 to be pulled can be fed back, so that uniform clamping force can be applied to the profile 1 to be pulled, and when the clamping force of a clamping block 304 on the profile 1 to be pulled is inconsistent with that of the rest, the clamping block 304 can be adjusted through the two screw rods, so that the uniformity of the clamping force on the profile 1 to be pulled is ensured, and the outer wall of the profile 1 to be pulled is prevented from being scratched or damaged.

[0082] In the embodiment, please refer to Figures 1 to 9 , the telescopic unit comprises a first telescopic power source 401, a second telescopic power source 402, a mounting plate 403 and a sliding block 404.

[0083] The first telescopic power source 401 and the second telescopic power source 402 are both fixedly installed on the support frame, which is not limited herein, and can be a hydraulic cylinder, an air cylinder, an electric telescopic rod or the like, which is used to provide telescopic power.

[0084] The telescopic direction of the first telescopic power source 401 is parallel to the telescopic direction of the second telescopic power source 402, the telescopic direction of the first telescopic power source 401 is perpendicular to the center line direction of the profile 1 to be pulled, and the telescopic direction of the first telescopic power source 401 is also perpendicular to the rotation axis direction of the first track wheel.

[0085] The mounting plate 403 is rotationally connected with the telescopic end of the first telescopic power source 401, and the rotation axis between the mounting plate 403 and the telescopic end of the first telescopic power source 401 is a first straight line;

[0086] The sliding block 404 is rotationally connected with the telescopic end of the second telescopic power source 402, and the rotation axis between the sliding block 404 and the telescopic end of the second telescopic power source 402 is a second straight line, the second straight line, the first straight line and the rotation axis of the first track wheel 302 are all parallel to each other, one end of the mounting plate 403 is slidingly connected with the sliding block 404, and the sliding direction of the sliding block 404 is perpendicular to the rotation axis direction of the first track wheel 302;

[0087] The other end of the mounting plate 403 is connected with the track mounting frame 305.

[0088] The telescopic amounts of the first telescopic power source 401 and the second telescopic power source 402 are the same when they are started, so that the track mounting frame 305 can be driven to move in the same direction or in the opposite direction parallel to the center line of the profile 1 to be pulled, so that the clamping block 304 can clamp and pull the profile 1 to be pulled with the same cross section;

[0089] Meanwhile, the telescopic amounts of the first telescopic power source 401 and the second telescopic power source 402 can be controlled to be different, so that each traction track unit can be in an inclined state with the front being high and the rear being low, so that the profile with a taper shape can be clamped and pulled, for example, the profile with a taper shape shown in Figures 1 to 9 , which is a schematic view of the profile with a taper shape pulled by the present application;

[0090] Since the clamping block of each traction track unit is controlled to be telescopic by a telescopic unit, the front and rear positions of the clamping block 304 can be freely controlled, so that the profile 1 to be pulled with different cross sections can be clamped and pulled.

[0091] In the embodiment, please refer to Figure 11 , the mounting plate 403 and the track mounting frame 305 are connected through an angle adjusting unit, and the angle adjusting unit comprises a sliding block 501, a sliding groove 502, a mounting block 503 and a threaded rod 504;

[0092] The sliding groove 502 is arranged on the track mounting frame 305, and the guide direction of the sliding groove 502 is parallel to the telescopic direction of the first telescopic power source 401;

[0093] The sliding block 501 is slidingly arranged in the sliding groove 502, the mounting block 503 is rotationally connected with the sliding block 501, and the rotation axis between the mounting block 503 and the sliding block 501 is parallel to the center line of the profile 1 to be pulled;

[0094] The threaded rod 504 is screwed through the mounting plate 403 and is in threaded connection with the mounting plate 403, and is in rotational connection between the threaded rod 504 and the mounting block 503, and the rotational axis of the threaded rod 504 is parallel to the rotational axis of the first track wheel 302.

[0095] The mounting plate 403 is in rotational connection with the track mounting frame 305, and the rotational axis between the mounting plate 403 and the track mounting frame 305 is parallel to the center line of the profile 1 to be pulled.

[0096] Rotating the threaded rod 504 can drive the mounting block 503 to rise or fall, thereby driving the sliding block 501 to rotate with the mounting block 503 and making the sliding block 501 slide along the sliding groove 502, while driving the mounting plate 403 to rotate with the track mounting frame 305, thereby rotating the clamping block 304, which can further increase the types of cross sections of the profile that can be pulled (for example, a non-equilateral triangular cross section can be clamped, and a cross section with one arc-shaped side and one straight side (the straight side forms an angle with the diameter line of the arc) can also be clamped), and the angle of the clamping block 304 can also be adjusted to form an equiangular circular array of the clamping blocks of each traction track unit, thereby ensuring the traction effect of the traction device.

[0097] In the embodiment, please refer to Figures 1 to 9 The traction device further comprises a synchronous start-stop unit for driving the plurality of traction track units to start and stop synchronously, and the synchronous start-stop unit comprises a main power assembly and a plurality of power transmission assemblies.

[0098] Each of the plurality of power transmission assemblies comprises a power output end and a power input end, and the power output end drives the first track wheel 302 to rotate.

[0099] The power output end of the main power assembly simultaneously provides rotational power to the power input ends of the plurality of power transmission assemblies.

[0100] The existing traction device has each traction track unit driven by a separate power source, and the controller simultaneously starts each power source to realize the synchronous start of each traction track unit. However, when the controller fails to simultaneously start some power sources or some power sources fail during the start process, the clamping blocks that do not move will rub against the outer wall of the profile 1 to be pulled, thereby scratching the outer wall of the profile 1 to be pulled, if the traction device continues to work, and if the traction device stops working, the production will be stopped, thereby affecting the work efficiency.

[0101] The driving power assembly can drive the power input end of the power transmission assembly to rotate, thereby driving the power output end of the power transmission assembly to rotate, thereby driving each traction track unit to start and stop simultaneously, thereby accurately ensuring the starting synchronization of each traction track unit, ensuring the stability, reliability and synchronization of the profile.

[0102] In this embodiment, please refer to Figures 1 to 9 The power transmission assembly includes a universal transmission shaft 601 and a transmission box 602.

[0103] The rotating power input shaft of the universal transmission shaft 601 is rotatably installed on the support frame 2, the rotating power output shaft of the universal transmission shaft 601 drives the power input shaft of the transmission box 602 to rotate, the power output shaft of the transmission box 602 drives the first track wheel 302 to rotate, and the transmission box 602 is fixedly installed on the track mounting frame 305.

[0104] The axis lines of the rotating power input shafts of the plurality of universal transmission shafts 601 are parallel.

[0105] The universal transmission shaft 601 includes a first shaft, a second shaft, a sleeve shaft, a center shaft, a first universal joint and a second universal joint.

[0106] The axis line of the first shaft is parallel to the center line of the profile 1 to be towed, the axis line of the first shaft is parallel to the axis line of the second shaft, one end of the first shaft is rotatably installed on the support frame 2, the other end of the first shaft is connected to one end of the sleeve shaft through the first universal joint, one end of the second shaft is fixedly connected to the power input shaft of the transmission box 602, the other end of the second shaft is connected to one end of the center shaft through the second universal joint, the other end of the sleeve shaft is provided with a groove, the other end of the center shaft is inserted into the groove and is in sliding connection with the groove, the outer wall of the center shaft is fixedly installed with a sliding block, the side wall of the groove is provided with a sliding groove, the end face of the sliding groove is coincident with the end face of the other end of the center shaft, and the sliding groove is in sliding connection with the sliding block; when the first shaft rotates, the second shaft can be driven to rotate through the first universal joint, the sleeve shaft, the center shaft and the second universal joint.

[0107] The specific structure of the transmission box 602 is not limited here, which mainly transmits the rotation of the universal transmission shaft 601 to the first track wheel 302, thereby driving the first track wheel 302 to rotate, and can be a mechanical transmission gear box, which comprises an outer shell, a cavity is formed in the outer shell, a first rotation column and a second rotation column are rotatably installed in the cavity, the axis of the first rotation column and the axis of the second rotation column are perpendicular to each other, one end of each of the first rotation column and the second rotation column penetrates through the outer shell and extends out of the outer shell, the first rotation column is fixedly connected with the first rotating shaft, the second rotation column is fixedly connected with the first rotating shaft, a first bevel gear is fixedly installed on the first rotation column, a second bevel gear is fixedly installed on the second rotation column, and the first bevel gear is engaged with the second bevel gear; it can also be a bevel gear set, one bevel gear of the bevel gear set is fixedly installed on the first rotating shaft, and the other bevel gear of the bevel gear set is fixedly installed on the rotating power output shaft (i.e. the second shaft) of the universal transmission shaft 601, and the second shaft is rotatably installed on the track mounting frame 305;

[0108] Through the universal transmission shaft 601, transmission can be realized during the movement of the traction track unit driven by the telescopic unit, thereby ensuring the synchronous starting or stopping of each traction track unit.

[0109] In this embodiment, please refer to Figures 1 to 9 Figures 1 to 9 , the main power assembly comprises a motor 603, a plurality of chain discs 604 and a chain 605;

[0110] The motor 603 is fixedly installed on the support frame 2, and the axis of the output shaft of the motor 603 is parallel to the axis of the rotating power input shaft of the universal transmission shaft 601;

[0111] A plurality of chain discs 604 are fixedly installed on the rotating power input shaft of each universal transmission shaft 601 and the output shaft of the motor 603 respectively, and the chain 605 is sleeved outside each chain disc 604.

[0112] The motor 603 rotates, thereby driving the chain 605 to move, thereby driving the rotating power input shaft of each universal transmission shaft 601 to rotate at the same time, realizing the simultaneous starting and stopping of the traction track unit and ensuring the synchronization of traction.

[0113] In another embodiment, the power assembly comprises a motor, an internal gear, a plurality of first external gears, a second external gear and a plurality of tooth grooves, and this embodiment is not illustrated in the drawings;

[0114] The rotating power input shaft of each universal transmission shaft 601 is fixedly installed with a first external gear, the plurality of first external gears are engaged with an internal gear, the internal gear is rotatably installed on the support frame 2, the profiled material 1 to be pulled can pass through the inner wall of the internal gear along the axial direction of the internal gear, a plurality of tooth grooves are arranged on the outer wall of the internal gear, and the plurality of tooth grooves are circularly arranged along the axis of the internal gear, a second external gear is fixedly installed on the motor shaft of the motor, the second external gear is engaged with the tooth groove, and the motor is fixedly installed on the support frame 2.

[0115] The motor rotates, thereby driving the second external gear to rotate, thereby driving the internal gear to rotate through the tooth groove, thereby driving all the first external gears to rotate simultaneously, thereby driving the rotating power input shafts of the plurality of universal transmission shafts 601 to rotate simultaneously, achieving simultaneous starting and stopping of the traction track units, and ensuring the synchronization of traction.

[0116] In summary, the present application can drive the clamping blocks 304 of the plurality of traction track units to move and clamp the profiled material 1 to be pulled by the plurality of telescopic units, the profiled material 1 to be pulled enters the plurality of clamping blocks 304, the driving power assembly is started, thereby driving the plurality of traction track units to start through the plurality of power transmission assemblies, thereby driving the clamping blocks 304 installed thereon to move, and achieving traction of the profiled material 1 to be pulled.

[0117] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A multi-section pultrusion tow device, characterized by, The traction device comprises: a support frame, a plurality of traction crawler units, the plurality of traction crawler units are arranged in an equiangular circular array along the center line of the profile to be pulled, the profile to be pulled is located in the middle of the plurality of traction crawler units, and traction blocks of the traction crawler units are in close contact with the outer wall of the profile to be pulled; a plurality of telescopic units, the plurality of traction crawler units are respectively installed on the plurality of telescopic units, and the plurality of telescopic units are fixedly installed on the support frame, wherein the telescopic end of the telescopic unit drives the traction block of the traction crawler unit to move towards the profile to be pulled; the traction crawler unit comprises a transmission crawler, a first crawler wheel, a second crawler wheel, a plurality of clamping blocks, a crawler mounting frame and a pressing plate; the first crawler wheel and the second crawler wheel are both rotationally installed on the crawler mounting frame, and the rotation axis of the first crawler wheel and the rotation axis of the second crawler wheel are both perpendicular to the center line of the profile to be pulled; the transmission crawler is sleeved outside the first crawler wheel and the second crawler wheel; the clamping block is the traction block of the traction crawler unit, and a plurality of clamping blocks are fixedly installed on the transmission crawler; the transmission crawler of the plurality of traction crawler units drives the clamping block to pull the profile to be pulled; one end surface of the pressing plate is fixedly connected to the side wall of the crawler mounting frame close to the profile to be pulled, the other end surface of the pressing plate is in close contact with the inner wall of the transmission crawler, and the side wall of the pressing plate in close contact with the transmission crawler is located on the side of the transmission crawler close to the profile to be pulled; the telescopic end of the telescopic unit is connected to the crawler mounting frame; the telescopic unit comprises a first telescopic power source, a second telescopic power source, a sliding block and a mounting plate; the first telescopic power source and the second telescopic power source are both fixedly installed on the support frame, the telescopic direction of the first telescopic power source is parallel to the telescopic direction of the second telescopic power source, the telescopic direction of the first telescopic power source is perpendicular to the center line direction of the profile to be pulled, and the telescopic direction of the first telescopic power source is also perpendicular to the rotation axis direction of the first crawler wheel; the mounting plate is rotationally connected to the telescopic end of the first telescopic power source, and the rotation axis between the mounting plate and the telescopic end of the first telescopic power source is a first straight line; the sliding block is rotationally connected to the telescopic end of the second telescopic power source, the rotation axis between the sliding block and the telescopic end of the second telescopic power source is a second straight line, the second straight line, the first straight line and the rotation axis of the first crawler wheel are all parallel to each other, one end of the sliding block is slidingly connected to the mounting plate, and the sliding direction of the sliding block is perpendicular to the rotation axis direction of the first crawler wheel; the other end of the mounting plate is connected to the crawler mounting frame; the mounting plate and the crawler mounting frame are connected through an angle adjusting unit, and the angle adjusting unit comprises a sliding block, a sliding groove, a mounting block and a threaded rod; the sliding groove is formed in the crawler mounting frame, and the guide direction of the sliding groove is parallel to the telescopic direction of the first telescopic power source; the sliding block is slidingly installed in the sliding groove, the mounting block is rotationally connected to the sliding block, and the rotation axis between the mounting block and the sliding block is parallel to the center line of the profile to be pulled; The threaded rod is screwed with the mounting plate and is rotatably connected with the mounting block, and the rotation axis of the threaded rod is parallel to the rotation axis of the first track wheel. The mounting plate is rotatably connected with the track mounting frame, and the rotation axis between the mounting plate and the track mounting frame is parallel to the center line of the profile to be towed.

2. A multi-profile pultrusion device according to claim 1, wherein, The number of the traction track units is three.

3. A multi-profile pultrusion device according to claim 1, wherein, The traction device further comprises a synchronous start-stop unit for driving the plurality of traction track units to start and stop synchronously, and the synchronous start-stop unit comprises a main power assembly and a plurality of power transmission assemblies. Each of the plurality of power transmission assemblies comprises a power output end and a power input end, and the power output end drives the first track wheel to rotate. The power output end of the main power assembly simultaneously provides rotary power to the power input ends of the plurality of power transmission assemblies.

4. A multi-profile pultrusion device according to claim 3, wherein, The plurality of power transmission assemblies are arranged in a circular array around the center line of the profile to be towed, and each power transmission assembly comprises a universal transmission shaft and a transmission box. The rotary power input shaft of the universal transmission shaft is rotatably mounted on the support frame, the rotary power output shaft of the universal transmission shaft drives the power input shaft of the transmission box to rotate, the power output shaft of the transmission box drives the first track wheel to rotate, and the transmission box is fixedly mounted on the track mounting frame. The axes of the rotary power input shafts of the plurality of universal transmission shafts are parallel to each other.

5. A multi-profile pultrusion device according to claim 4, wherein, The main power assembly comprises a motor, a plurality of chain discs, and a chain. The motor is fixedly mounted on the support frame, and the axis of the output shaft of the motor is parallel to the axes of the rotary power input shafts of the universal transmission shafts. Each of the plurality of chain discs is fixedly mounted on the rotary power input shaft of each universal transmission shaft and the output shaft of the motor, and the chain is sleeved outside each chain disc.

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