CN212834398U

CN212834398U - Tooth-type synchronous rotation multifunctional linear reciprocating tractor

Info

Publication number: CN212834398U
Application number: CN202020809831.4U
Authority: CN
Inventors: 刘之乾; 李晓林; 刘涛
Original assignee: Weihai Guangwei Precision Machinery Co Ltd
Current assignee: Weihai Guangwei Precision Machinery Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-30
Anticipated expiration: 2030-05-15

Abstract

The utility model provides a tooth-like synchronous rotation multifunctional linear reciprocating tractor, which solves the technical problems of low chain transmission efficiency, high maintenance cost and serious stall phenomenon of the existing crawler-type tractor, and can not satisfy the technical problems of zero-degree wire laying and radial surrounding wire laying; the transmission gears of two adjacent linear reciprocating traction units are meshed and connected through the transmission idle wheel, so that the rotation directions of all the transmission gears are the same, and the linear reciprocating traction unit can be widely applied to the technical field of textile equipment.

Description

Tooth-type synchronous rotation multifunctional linear reciprocating tractor

Technical Field

The utility model relates to a weaving equipment technical field, in particular to tooth-like synchronous revolution multifunctional straight reciprocating tractor.

Background

In recent years, the market demand of carbon fiber composite materials is rapidly increasing due to their unique characteristics of high strength, low density, corrosion resistance, aging resistance, and the like. In the continuous production of carbon fiber composite materials, in particular composite profiles, a tractor is one of the indispensable devices on the production line.

The prior general tractor generally adopts a chain-driven crawler-type circumferential circulation traction mechanism, commonly called as a crawler-type tractor, and has the advantages of relatively simple structure and small manufacturing difficulty. The chain transmission device has the advantages that the chain transmission device mainly has two defects, namely, the chain transmission efficiency is low, and the maintenance cost is high; secondly, the stalling phenomenon of the crawler-type circumferential circulation traction mechanism is serious, and the production process requirements of the composite profile which has zero-degree wire laying and radial surrounding wire laying, namely, the product keeps synchronous rotation and is linearly dragged cannot be met.

Disclosure of Invention

The utility model aims at solving the not enough of above-mentioned technique, provide a tooth-like multi-functional straight reciprocating tractor of synchronous revolution, compare current crawler-type tractor, transmission efficiency is higher, the maintenance cost is lower, does not have the stall phenomenon, and can satisfy existing zero degree shop's silk and have radial encircleing shop's silk simultaneously again, make the product not only keep synchronous revolution but also by the production technology demand of sharp towed composite material.

Therefore, the utility model provides a tooth-type synchronous rotation multifunctional linear reciprocating traction machine, which is provided with a frame, a driving device and a linear reciprocating traction unit, wherein the linear reciprocating traction unit is provided with a linear reciprocating traction part and a friction roller assembly, the friction roller assembly is connected with the linear reciprocating traction part, and the linear reciprocating traction part is connected with the driving device;

the friction roller assembly is provided with a left semicircular slideway, a right semicircular slideway, a scissor fork type support, a left opening and closing shifting fork, a right opening and closing shifting fork, a bidirectional driving device, a left connecting piece, a right connecting piece and an opening and closing friction mechanism, wherein the left semicircular slideway is hinged with the scissor fork type support, and the right semicircular slideway is hinged with the scissor fork type support; the left semicircular slideway is fixedly connected with the left opening and closing shifting fork, the right semicircular slideway is fixedly connected with the right opening and closing shifting fork, power output ends on two sides of the bidirectional driving device are respectively connected with the left opening and closing shifting fork and the right opening and closing shifting fork, and the left semicircular slideway and the right semicircular slideway are mutually opened or closed under the power output of the bidirectional driving device; the left semicircular slideway is fixedly connected with the left connecting piece, and the right semicircular slideway is fixedly connected with the right connecting piece; the inner edge of the left semicircular slideway is provided with a left semicircular sliding groove, and the inner edge of the right semicircular slideway is provided with a right semicircular sliding groove; the opening and closing friction mechanism is provided with a friction mechanism body, the friction mechanism body is provided with a friction part fixing table and a friction block, the inner side of the friction part fixing table is connected with the friction block, the outer edge of the friction part fixing table is connected with a slideway rolling part shaft, the slideway rolling part shaft is connected with a first bearing, and the first bearing is arranged in the left semicircular chute and/or the right semicircular chute in a rolling connection manner; the number of the friction mechanism bodies is multiple; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissor fork type bracket respectively, the left semicircular chute and the right semicircular chute are communicated to form a complete circular chute, a plurality of friction mechanism bodies are circumferentially arranged in the complete circular chute, and a friction block of each friction mechanism body faces towards a clamped forming body; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and the scissor fork type bracket respectively to be opened, the left semicircular chute and the right semicircular chute are separated;

the linear reciprocating traction part is provided with a transmission device, a traction device and a reset device, the transmission device is provided with a transmission gear and a transmission gear shaft, the traction device is provided with a driving sector gear, a driving rack, a first linear guide rail, a bracket and a connecting rod, and the reset device is provided with a reset sector gear, a reset idle wheel, a reset rack, a second linear guide rail and a reset connecting plate; the transmission gear shaft is arranged on the frame through a bearing seat, the transmission gear, the driving sector gear and the reset sector gear are coaxially connected with the transmission gear shaft respectively, and the sector angles of the driving sector gear and the reset sector gear are not interfered with each other; the driving sector gear is in adaptive meshing with the driving rack, the driving rack is connected with the rack through a first linear guide rail, a sliding block of the first linear guide rail is fixedly connected with the driving rack, and a guide rail of the first linear guide rail is fixedly connected with the rack; the driving rack is fixedly connected with the bracket, and the bracket is connected with one end of the connecting rod in a shaft connection manner; the other end of the connecting rod of one traction device is in shaft connection with the left connecting piece, and the other end of the connecting rod of the other traction device is in shaft connection with the right connecting piece; the reset sector gear is meshed with the reset idle gear in a matching way, the reset idle gear is meshed with the reset rack in a matching way, and the reset rack is connected with the rack through a second linear guide rail; the reset rack is fixedly connected with a reset connecting plate, and the reset connecting plate is fixedly connected with the bracket; when the driving sector gear and the driving rack are meshed to work, the reset sector gear is separated from the reset intermediate gear, and the friction roller assembly clamps the clamped forming body; when the reset sector gear and the reset intermediate gear are meshed to work, the driving sector gear is separated from the driving rack, and the friction roller assembly loosens the clamped forming body;

the number of the linear reciprocating traction units is multiple, and the linear reciprocating traction units are arranged side by side at intervals; the transmission gears of two adjacent linear reciprocating traction units are meshed and connected through the transmission intermediate wheel, so that the rotation directions of all the transmission gears are the same.

Preferably, the number of the linear reciprocating traction units is n, and n is a natural number more than or equal to 3; wherein, the driving sector gear of at least one straight reciprocating traction unit is meshed with the driving rack matched with the driving sector gear, and the reset sector gear of at least one other straight reciprocating traction unit is meshed with the reset idle gear matched with the reset sector gear.

Preferably, the utility model discloses have two straight reciprocating traction unit's initiative sector gear simultaneously rather than the initiative rack toothing work of looks adaptation at least, and when coinciding the axle central line of all straight reciprocating traction unit's drive gear axle, initiative sector gear is around drive gear axle and is annular array distribution.

Preferably, the utility model is also provided with a first guide shaft and a second guide shaft which are respectively connected with the frame; the friction roller assembly of each linear reciprocating traction unit is provided with a mounting seat, the mounting seat is connected with the first guide shaft in a sliding manner, and the bidirectional driving device is fixedly connected with the mounting seat; the scissor fork type support of the friction roller assembly of each straight reciprocating traction unit is provided with a guide hole, the second guide shaft penetrates through the guide hole, and the scissor fork type support is connected with the first guide shaft in a sliding mode.

Preferably, the friction roller assembly is further provided with a pair of left semicircular flanges and a pair of right semicircular flanges, two sides of the left semicircular slideway are respectively provided with one left semicircular flange, connecting semicircular pipes of the two left semicircular flanges are oppositely arranged at intervals, and the connecting semicircular pipe of each left semicircular flange and the left semicircular chute form a pair of left semicircular chutes; the two sides of the right semicircular slideway are respectively provided with a right semicircular flange, the connecting half pipes of the two right semicircular flanges are oppositely arranged at intervals, and the connecting half pipe of each right semicircular flange and the right semicircular chute form a pair of right semicircular annular chutes; two ends of the slideway rolling component shaft are respectively provided with a first bearing in a connecting way, and the first bearings are correspondingly arranged in the left semi-annular chute and/or the right semi-annular chute in a rolling way; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissors fork type bracket, the left semicircular chute and the right semicircular chute are correspondingly communicated with each other at the same side to form a pair of complete annular chutes.

Preferably, the friction mechanism body is further provided with a left wedge-shaped block, a right wedge-shaped block, a lower wedge-shaped block, a positive and negative screw rod, a positive screw lug seat, a negative screw lug seat and a guide piece; the left wedge block and the right wedge block are oppositely arranged between the friction part fixing table and the lower wedge block, the left wedge block and the right wedge block are respectively connected with the friction part fixing table in a sliding mode, the left wedge block is connected to a left sliding inclined plane of the lower wedge block in a sliding mode, the right wedge block is connected to a right sliding inclined plane of the lower wedge block in a sliding mode, and the bottom surface of the lower wedge block is connected with the friction block; one end of the positive and negative screw rod is in adaptive connection with the positive screw lug seat, the other end of the positive and negative screw rod is in adaptive connection with the negative screw lug seat, the positive screw lug seat and the negative screw lug seat are respectively arranged on the left side and the right side of the friction part fixing table, the positive screw lug seat is connected with the left wedge block, and the negative screw lug seat is connected with the right wedge block; the friction part fixing table is provided with a mounting through hole, and the positive and negative screw rods are fixedly arranged in the mounting through hole through a second bearing; the lower wedge block is provided with a guide through hole, one end of the guide piece is connected with the friction part fixing table, and the other end of the guide piece penetrates through the guide through hole and extends out; when the positive and negative lead screw rotates, the left wedge block provided with the positive screw lug seat and the right wedge block provided with the negative screw lug seat simultaneously slide back to back or relatively slide, and the lower wedge block is close to or far away from the friction part fixing table along the guide piece.

Preferably, the left wedge block and the right wedge block are identical in structural shape, the longitudinal sections of the left wedge block and the right wedge block are both trapezoidal, and the tips of the left wedge block and the right wedge block are opposite.

Preferably, the guide piece is a guide pin, a pin cap of the guide pin is arranged on the outer side of the lower wedge-shaped block, the size of the pin cap is larger than the aperture of the guide through hole, a pin rod of the guide pin penetrates through the guide through hole to be in threaded connection with the friction part fixing table, and the pin rod is in sliding connection with the guide through hole.

Preferably, the friction mechanism body is of a left-right symmetrical structure.

Preferably, the number of the friction mechanism bodies is two, and the friction blocks of the two friction mechanism bodies are arranged at intervals relatively.

The utility model has the advantages that: the utility model provides a tooth-like synchronous rotation multifunctional linear reciprocating tractor, firstly, the utility model adopts a gear transmission mode, fully utilizes the characteristics of high efficiency, stability, reliability and the like of gear transmission, and compared with the prior crawler-type tractor, the gear synchronous rotation multifunctional linear reciprocating tractor has higher transmission efficiency, lower maintenance cost and no stall phenomenon; secondly, a design scheme that a fan-shaped gear is matched with a rack so as to convert circular motion into linear reciprocating motion is adopted; thirdly, in order to meet the process requirements of linear traction and synchronous rotation of products, a linkage slip ring type synchronous rotation multifunctional opening and closing friction roller (namely a friction roller assembly) is designed, an openable and closable circular sliding chute (namely a slip ring) structure consisting of a left semicircular slideway and a right semicircular slideway is adopted, and the opening and closing friction mechanism and a clamped forming body synchronously rotate so as to meet the process requirements of radial surrounding wire laying on the basis of the existing zero-degree wire laying; fourthly, in order to adjust the friction force of the five-axis linkage sliding ring type gap adjustable synchronous rotation multifunctional opening and closing friction roller pair traction products, a wedge-shaped gap adjustable multifunctional friction mechanism (namely a friction mechanism body) is designed and researched.

Drawings

Fig. 1 is a schematic structural view of a front view of the present invention;

FIG. 2 is a schematic structural view of the top view shown in FIG. 1;

FIG. 3 is a schematic structural view of the left side view shown in FIG. 1;

FIG. 4 is a schematic front view of the friction roller assembly shown in FIG. 1 (with the bi-directional drive, left and right links removed);

FIG. 5 is a schematic structural view of the left side view shown in FIG. 4;

FIG. 6 is a schematic structural view of the enlarged view of FIG. 4 with the left and right opening/closing forks and scissor mounts removed;

FIG. 7 is a schematic left side view of the opening and closing friction mechanism and the right round track shown in FIG. 6; since fig. 4 shows a left-right symmetrical structure, fig. 7 is a structural schematic diagram of a right side view of the opening and closing friction mechanism and the left semicircular slideway shown in fig. 4;

FIG. 8 is a schematic structural view of a partial sectional view A-A shown in FIG. 6;

FIG. 9 is a structural schematic of a bottom view of the friction mechanism body;

FIG. 10 is a schematic structural view of a partial sectional view B-B shown in FIG. 9;

fig. 11 is a schematic structural view of a partial sectional view C-C shown in fig. 9.

FIG. 12 is a schematic structural view in front elevation showing the coincidence of the shaft centerlines of the drive gear shafts of all the linear reciprocating traction units;

fig. 13 is a schematic structural view of the perspective view shown in fig. 12.

The labels in the figure are: the labels in the figure are: 1. a left semicircular slideway, 2 a right semicircular slideway, 3 a scissor fork type support, 4 an opening and closing friction mechanism, 5 a left semicircular slideway, 6 a right semicircular slideway, 7 a friction mechanism body, 8 a friction part fixing table, 9 a friction block, 10 a slideway rolling part shaft, 11 a first bearing, 12 a pin shaft, 13 a left wedge block, 14 a right wedge block, 15 a lower wedge block, 16 a positive and negative screw rod, 17 a positive screw lug seat, 18 a negative screw lug seat, 19 a guide piece, 20 a left sliding inclined plane, 21 a right sliding inclined plane, 22 a left opening and closing shifting fork, 23 a right opening and closing shifting fork, 24 an installation through hole, 25 a second bearing, 26 a guide pin, 27 a left semicircular flange, 28 a right semicircular flange, 29 a left semicircular slideway, 30 a semicircular slideway, 31 a guide hole, 32 a rack, 33 a driving device, 34 a transmission idle wheel, 35. the chain, 36 friction roller assembly, 37 transmission device, 371 transmission gear, 372 transmission gear shaft, 38 traction device, 381 driving sector gear, 382 driving rack, 383 first linear guide rail, 384 bracket, 385 connecting rod, 39 resetting device, 391 resetting sector gear, 392 resetting idle wheel, 393 resetting rack, 394 second linear guide rail, 395 resetting connecting plate, 40 left connecting piece, 41 right connecting piece, 42 bidirectional driving device, 43 mounting seat, 44 first guiding shaft, 45 second guiding shaft.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1-3, the utility model provides a tooth-like synchronous rotation multifunctional linear reciprocating tractor, which is provided with a frame 32 and a driving device 33, and is also provided with a linear reciprocating traction unit, wherein the linear reciprocating traction unit is provided with a linear reciprocating traction part and a friction roller assembly 36, the friction roller assembly 36 is connected with the linear reciprocating traction part, and the linear reciprocating traction part is connected with the driving device 33.

As shown in fig. 1, 3, 4-11, the friction roller assembly 36 includes a left semicircular slideway 1, a right semicircular slideway 2, a scissor-fork type bracket 3, a left opening/closing fork 22, a right opening/closing fork 23, a bidirectional driving device 42, a left connecting member 40, a right connecting member 41, and an opening/closing friction mechanism 4. The left semicircular slideway 1 is hinged with the scissor fork type support 3, and the right semicircular slideway 2 is hinged with the scissor fork type support 3. The outer edge of the left semicircular slideway 1 is fixedly connected with one end of the left opening and closing shifting fork 22, the outer edge of the right semicircular slideway 2 is fixedly connected with one end of the right opening and closing shifting fork 23, the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 are generally rod-shaped structures, power output ends on two sides of the bidirectional driving device 42 are respectively connected with the other end of the left opening and closing shifting fork 22 and the other end of the right opening and closing shifting fork 23, and the left semicircular slideway 1 and the right semicircular slideway 2 are mutually opened or closed under the power output of the bidirectional driving device 42. Bidirectional motion is required to be used in a plurality of mechanical structures, and in order to realize the function, most of the existing bidirectional driving devices 42 adopt a motor or a cylinder at two sides respectively, and then adopt an electric control system to synchronously control so as to realize the synchronous motion of the left side and the right side; preferably, the bidirectional driving device 42 of the present invention may be a bidirectional cylinder. The outer edge of the left semicircular slideway 1 is fixedly connected with a left connecting piece 40, and the outer edge of the right semicircular slideway 2 is fixedly connected with a right connecting piece 41; the inner edge of the left semicircular slideway 1 is provided with a left semicircular sliding groove 5, and the inner edge of the right semicircular slideway 2 is provided with a right semicircular sliding groove 6; the opening and closing friction mechanism 4 is provided with a friction mechanism body 7, the friction mechanism body 7 is provided with a friction part fixing table 8 and a friction block 9, the inner side of the friction part fixing table 8 is connected with the friction block 9, the outer edge of the friction part fixing table 8 is connected with a slideway rolling part shaft 10, the slideway rolling part shaft 10 is connected with a first bearing 11, and the first bearing 11 is arranged in the left semicircular chute 5 and/or the right semicircular chute 6 in a rolling connection mode. In order to increase the holding effect of the molded body, the friction mechanism body 7 is provided in plural number. Under the action of the bidirectional driving device 42, the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 of the friction roller assembly 36 rotate synchronously inwards around the pin shaft 12 (i.e. the hinge shaft) of the scissor fork type support 3 to close and tighten the left semicircular slideway 1 and the right semicircular slideway 2, so that the left semicircular slideway 1 and the right semicircular slideway 2 are closed into a complete circular slideway, the left semicircular slideway 5 and the right semicircular slideway 6 are communicated to form a complete circular slideway, thereby giving enough constraint force to the friction mechanism bodies 7, the plurality of friction mechanism bodies 7 are circumferentially arranged in the complete circular slideway, the friction block 9 of each friction mechanism body 7 faces towards a clamped molded body, and the friction block 9 of each friction mechanism body 7 clamps the molded body together. The clamped forming body is driven to rotate under the driving of an external force, the clamped forming body can be coaxially and fixedly connected with a power output shaft of a commercially available motor, and the rotation of the clamped forming body is realized under the power output of the motor; at this time, friction force is generated between the friction block 9 and the clamped forming body, so that the friction mechanism bodies 7 are driven to do synchronous circular motion with the clamped forming body in a complete circular slide way formed by the communication of the left semicircular chute 5 and the right semicircular chute 6, and the rotation of the clamped forming body along the circumferential circular slide way is realized while the plurality of friction mechanism bodies 7 cooperatively clamp the forming body. Meanwhile, the friction roller assembly 36 pulls the clamped forming body to do linear motion with limited stroke along the axial direction of the clamped forming body, so that the production process that the clamped forming body does radial rotation in the linear advancing process is met; after the friction roller assembly 36 pulls the clamped molded body to finish a limited stroke forwards, under the action of the bidirectional driving device 42, the left opening-closing shifting fork 22 and the right opening-closing shifting fork 23 of the friction roller assembly 36 rotate outwards synchronously around the left semicircular slideway 1 and the right semicircular slideway 2 respectively and the pin shaft 12 (namely the hinge shaft) of the scissor-fork type support 3, the complete circular slideway closed by the left semicircular slideway 1 and the right semicircular slideway 2 is opened synchronously, namely the constraint on the friction mechanism body 7 is released, the friction block 9 is separated from the clamped molded body, the friction force between the friction block 9 and the clamped molded body disappears, and the friction roller assembly 36 returns to the original position to prepare for pulling the clamped molded body to finish a limited stroke forwards next time.

As shown in fig. 1 to 3, the linear reciprocating traction component is provided with a transmission device 37, a traction device 38 and a reset device 39, the transmission device 37 is provided with a transmission gear 371 and a transmission gear shaft 372, the traction device 38 is provided with a driving sector gear 381, a driving rack 382, a first linear guide rail 383, a support 384 and a connecting rod 385, and the reset device 39 is provided with a reset sector gear 391, a reset idle wheel 392, a reset rack 393, a second linear guide rail 394 and a reset connecting plate 395. The transmission gear shaft 372 is mounted on the frame 32 through a bearing seat, the transmission gear 371, the driving sector gear 381 and the reset sector gear 391 are respectively connected with the transmission gear shaft 372, and the transmission gear 371, the driving sector gear 381 and the reset sector gear 391 are coaxial. The driving sector gear 381 is in fit engagement with the driving rack 382; the driving rack 382 is connected with the frame 32 through a first linear guide 383, wherein a slide block of the first linear guide 383 is fixedly connected with the driving rack 382, and a guide rail of the first linear guide 383 is fixedly connected with the frame 32; the driving rack 382 is fixedly connected with a bracket 384, and the bracket 384 is connected with one end of the connecting rod 385 through a shaft. The traction devices 38 are provided with a pair in number, wherein the other end of the connecting rod 385 of one traction device 38 is connected with the left connecting piece 40 in a shaft-connecting mode, and the other end of the connecting rod 385 of the other traction device 38 is connected with the right connecting piece 41 in a shaft-connecting mode; preferably, the drive gear segments 381 of a pair of traction devices 38 are symmetrically disposed on opposite ends of the drive gear shaft 372. The reset sector gear 391 is in fit engagement with the reset intermediate gear 392, so that the rotation direction of the reset intermediate gear 392 is opposite to that of the reset sector gear 391, the reset intermediate gear 392 is in fit engagement with the reset rack 393, the reset rack 393 is connected with the rack 32 through a second linear guide rail 394, wherein a sliding block of the second linear guide rail 394 is fixedly connected with the reset rack 393, and a guide rail of the second linear guide rail 394 is fixedly connected with the rack 32; reset rack 393 and reset connecting plate 395 fixed connection, reset connecting plate 395 and support 384 fixed connection. The sector angle α of the driving sector gear 381 and the sector angle γ of the reset sector gear 391 do not interfere with each other, that is, α is less than pi, γ is less than pi, and pi is 180 °, so that the driving sector gear 381 and the reset sector gear 391, which are arranged on the same transmission gear shaft 372, do not interfere with each other in operation, when the driving sector gear 381 rotates by a certain angle and is separated from the driving rack 382, the reset sector gear 391 coaxial with the driving sector gear 381 is meshed with the reset idle gear 392, and the reset idle gear 392 drives the reset rack 393 to do reverse linear motion. In a preferred embodiment, the sector angle α of the driving sector gear 381 is equal to the sector angle γ of the reset sector gear 391, and is circumferentially staggered and symmetrically distributed.

When the driving sector gear 381 and the driving rack 382 are meshed for working, the resetting sector gear 391 is separated from the resetting intermediate wheel 392, the friction roller assembly 36 clamps the clamped forming body, the friction roller assembly 36 clamps the forming body and rotates along a circumferential circular slideway along with the rotation of the clamped forming body, at the moment, the driving sector gear 381 drives the driving rack 382 to move linearly forwards, the friction roller assembly 36 is stirred to move linearly forwards through the bracket 384 and the connecting rod 385, and the clamped forming body rotates and moves linearly forwards; when fan-shaped gear 391 resets and the idle wheel 392 meshing during operation that resets, initiative fan-shaped gear 381 separates with initiative rack 382, and friction roller assembly 36 loosens and breaks away from the centre gripping moulded body, and idle wheel 392 that resets this moment drives the rack 393 that resets and is reverse rectilinear motion, and the connecting plate 395 that resets stirs friction roller assembly 36 through support 384, connecting rod 385 and resets, and it makes ready forward rectilinear motion to press from both sides the centre gripping moulded body once more for next friction roller assembly 36, to this end, the utility model discloses a traction stroke has been accomplished. The working process is repeated. Under the external power drive, the utility model discloses do the straight reciprocating motion of limited stroke, realize drawing and the automatic re-setting function to the centre gripping formed body promptly. The extending direction of the first and second

linear guides

383 and 394 coincides with the linear traveling direction of the clamped molded body.

As shown in fig. 1 and 2, the number of the straight reciprocating traction units of the present invention is plural, and the straight reciprocating traction units are arranged side by side at intervals. The transmission gears 371 of two adjacent linear reciprocating traction units are meshed and connected through the transmission intermediate wheel 34, so that the rotation directions of all the transmission gears 371 are the same; the rotation directions of all the transmission gears 371 are the same, and one of the modes is that m transmission gears 371 are engaged by m-1 transmission intermediate wheels 34, so that m transmission gears 371 are ensured to rotate in the same direction, and m is a natural number greater than or equal to 2; typically, the transmission idler 34 is mounted on the frame 32. The driving device 33 is usually a motor or the like, the driving device 33 drives the transmission gear shaft 372 to rotate through a gear-chain manner, and further drives the transmission gear 371 to rotate, and the rotation directions of all the transmission gears 371 are the same through the rotation of the transmission intermediate wheel 34, so that the rotation directions of the driving sector gear 381 and the reset sector gear 391 which are installed on the transmission gear shaft 372 of all the linear reciprocating traction units are ensured to be the same. It should be noted that the gear-chain system is a system in which the power output shaft of the driving device 33 is connected to one gear, and the other gear is mounted on the transmission gear shaft 372, and the two gears are connected by the chain 35. As a preferred embodiment, when the number of the straight reciprocating traction units is two, the driving sector gear 381 of one straight reciprocating traction unit is meshed with the driving rack 382 matched with the driving sector gear, and meanwhile, the friction roller assembly 36 clamps the clamped forming body and pulls the clamped forming body to be pulled forwards; the reset sector gear 391 of the other straight reciprocating traction unit is meshed with the reset intermediate gear 392 matched with the reset sector gear, and meanwhile, the friction roller assembly 36 is loosened and separated from the clamped forming body and is reset backwards integrally; the friction roller assemblies 36 of the two straight reciprocating traction units respectively complete four actions of closing, traction, opening and resetting in sequence, so that the two straight reciprocating traction units alternately traction the clamped formed body, the clamped formed body is continuously and forwardly pulled, and the working efficiency is improved.

As a preferred embodiment, as shown in fig. 1 to 3, the number of the straight reciprocating traction units is n, and n is a natural number greater than or equal to 3; wherein, the driving sector gear 381 of at least one straight reciprocating traction unit is meshed with the driving rack 382 matched with the driving sector gear 381, and the resetting sector gear 391 of at least another straight reciprocating traction unit is meshed with the resetting intermediate gear 392 matched with the resetting sector gear 391; therefore, the clamped formed body can be simultaneously pulled by the plurality of linear reciprocating pulling units, and the whole pulling process is more stable and efficient on the basis of continuous forward pulling of the clamped formed body. As a further preferred embodiment, as shown in fig. 1, fig. 2, fig. 12 and fig. 13, the present invention has at least two driving sector gears 381 of the straight reciprocating traction units engaged with the driving rack 382, and when the axial center lines of the transmission gear shafts 372 of all the straight reciprocating traction units coincide, the driving sector gears 381 surround the transmission gear shafts 372 and are distributed in an annular array, so as to ensure that the friction roller assemblies 36 of at least two straight reciprocating traction units draw the clamped molded body to continuously move forward, and the whole traction process is more stable and efficient. It should be noted that an included angle β exists between bisectors of fan angle angles of the driving fan gears 381 on the two adjacent linear reciprocating traction units, and the following relation is satisfied: n beta is more than or equal to 2 pi, wherein n is a natural number more than or equal to 3, and pi is 180 degrees.

As a preferred embodiment, as shown in fig. 1 to 3 and 4, in order to make the clamped molded body more stable in the straight line advancing process, the present invention further comprises a first guiding shaft 44 and a second guiding shaft 45, the first guiding shaft 44 and the second guiding shaft 45 are respectively connected with the frame 32, wherein the first guiding shaft 44 is usually fixed on the frame 32 by a bearing seat, and the second guiding shaft 45 can be replaced by a straight line guide. The friction roller assembly 36 of each straight reciprocating traction unit is provided with a mounting seat 43, the mounting seat 43 is connected with a first guide shaft 44 in a sliding manner, and a bidirectional driving device 42 is fixedly connected with the mounting seat 43; the scissor fork supports 3 of the friction roller assembly 36 of each linear reciprocating traction unit are provided with guide holes 31, the second guide shafts 45 penetrate through the guide holes 31, and the scissor fork supports 3 are slidably connected with the first guide shafts 44. The extending directions of the first guide shaft 44 and the second guide shaft 45 are consistent with the linear running direction of the clamped formed body, and the shafts and holes of the first guide shaft 44 and the second guide shaft 45 are matched for use, so that the clamped formed body is more stable in the linear running process. As a further preferred embodiment, the guiding hole 31 may also be used as a hinge point of the scissor-type fork support 3, and the left opening-closing fork 22 and the right opening-closing fork 23 respectively drive the left semicircular slideway 1 and the right semicircular slideway 2 to synchronously tighten inwards or synchronously open outwards by using the pin 12 at the upper end of the scissor-type fork support 3 and the guiding hole 31 at the lower end as hinge points under the action of the bidirectional driving device 42.

As a preferred embodiment, as shown in fig. 6 to 9, the friction roller assembly 36 is further provided with a pair of left semicircular flanges 27 and a pair of right semicircular flanges 28, two sides of the left semicircular slideway 1 are respectively provided with one left semicircular flange 27, the connecting half pipes of the two left semicircular flanges 27 are oppositely arranged at intervals, and the connecting half pipe of each left semicircular flange 27 and the left semicircular chute 5 form a pair of left semicircular chutes 29; the two sides of the right semicircular slideway 2 are respectively provided with a right semicircular flange 28, the connecting half pipes of the two right semicircular flanges 28 are oppositely arranged at intervals, and the connecting half pipe of each right semicircular flange 28 and the right semicircular chute 6 form a pair of right semicircular annular chutes 30; two ends of the slideway rolling component shaft 10 are respectively provided with a first bearing 11 in a connecting way, and the first bearings 11 are correspondingly arranged in a pair of left semi-annular chutes 29 and/or a pair of right semi-annular chutes 30 in a rolling way; when the left semicircular slideway 1 and the right semicircular slideway 2 rotate around the pin shafts 12 of the left semicircular slideway 1 and the right semicircular slideway 2 and are closed with each other, the left semicircular chute 29 and the right semicircular chute 30 are correspondingly communicated with each other at the same side to form a pair of complete annular chutes. The left semi-annular chute 29 and the right semi-annular chute 30 are structurally arranged, so that the first bearing 11 is more stable in the rolling process of the left semi-annular chute 5 and the right semi-annular chute 6, and the friction mechanism body 7 is more stable and firmer when rotating circumferentially in the complete circular chute. It should be noted that the semicircular flange belongs to the existing device, that is, a half of the circular flange, the circular flange is provided with a flange mounting plate and a connecting pipe which are connected with each other, and then the semicircular flange is provided with a connecting half pipe and a semicircular flange mounting plate which are connected with each other. The utility model discloses in, left semicircle flange 27 is installed on left semicircle slide 1 through its semicircle flange mounting disc, and right semicircle flange 28 is installed on right semicircle slide 2 through its semicircle flange mounting disc, and in left semicircle flange 27's the connection semicanal stretch into left semicircle spout 5, right semicircle flange 28's the connection semicanal stretch into right semicircle spout 6.

As a preferred embodiment, as shown in fig. 6 to 11, the friction mechanism body 7 is further provided with a friction force fine adjustment mechanism, which includes a left wedge-shaped block 13, a right wedge-shaped block 14, a lower wedge-shaped block 15, a positive and negative lead screw 16, a positive thread lug 17, a negative thread lug 18, and a guide 19; the left wedge-shaped block 13 and the right wedge-shaped block 14 are oppositely arranged between the friction part fixing table 8 and the lower wedge-shaped block 15, the left wedge-shaped block 13 and the right wedge-shaped block 14 are respectively connected with the friction part fixing table 8 in a sliding manner, the left wedge-shaped block 13 is connected on a left sliding inclined surface 20 of the lower wedge-shaped block 15 in a sliding manner, the right wedge-shaped block 14 is connected on a right sliding inclined surface 21 of the lower wedge-shaped block 15 in a sliding manner, and the bottom surface of the lower wedge-shaped block 15 is connected with the friction block 9; one end of the positive and negative screw rod 16 is in adaptive connection with a positive screw lug seat 17, the other end of the positive and negative screw rod 16 is in adaptive connection with a negative screw lug seat 18, the positive screw lug seat 17 and the negative screw lug seat 18 are respectively arranged on the left side and the right side of the friction part fixing table 8, the positive screw lug seat 17 is connected with a left wedge-shaped block 13, and the negative screw lug seat 18 is connected with a right wedge-shaped block 14; the friction part fixing table 8 is provided with an installation through hole 24, and the positive and negative lead screws 16 are fixedly arranged in the installation through hole 24 through second bearings 25, so that the structure is simple, and the disassembly and the assembly are convenient; the lower wedge-shaped block 15 is provided with a guide through hole, one end of a guide piece 19 is connected with the friction part fixing table 8, and the other end of the guide piece 19 penetrates through the guide through hole and extends out; when the forward and reverse screw rod 16 rotates, the left wedge-shaped block 13 provided with the forward screw lug seat 17 and the right wedge-shaped block 14 provided with the reverse screw lug seat 18 simultaneously slide back to back or relatively slide, and the lower wedge-shaped block 15 is close to or far away from the friction part fixing table 8 along the guide piece 19.

When the pressure/friction force applied by the friction mechanism body 7 to the clamped forming body is larger than the bearing capacity of the clamped forming body or exceeds the process requirement, the positive and negative screw rods 16 are rotated, the left wedge-shaped block 13 provided with the positive lug seat 17 and the right wedge-shaped block 14 provided with the negative lug seat 18 simultaneously slide back to back, the lower wedge-shaped block 15 moves towards the direction close to the friction part fixing table 8 along the guide pins 26, the gap between the friction block 9 and the clamped forming body is increased, the pressure applied to the clamped forming body is reduced, and further the friction force between the friction block 9 and the clamped forming body is reduced. On the contrary, when the pressure/friction force applied by the friction block 9 to the clamped forming body is smaller than the process requirement, that is, when the clamped forming body cannot be effectively clamped, the phenomena of traction failure or slipping occur, the forward and reverse screw 16 is rotated reversely, the left wedge block 13 provided with the forward screw lug seat 17 and the right wedge block 14 provided with the reverse screw lug seat 18 simultaneously slide oppositely, the lower wedge block 15 moves along the guide pin 26 in the direction far away from the friction part fixing table 8, the gap between the friction block 9 and the clamped forming body is reduced, the pressure of the clamped forming body is increased, and further the friction force between the friction block and the clamped forming body is increased. Thereby further meeting the positive pressure of the process requirement of the clamped formed body.

As a further preferred embodiment, as shown in fig. 8 and 11, the left wedge block 13 and the right wedge block 14 have the same structural shape, are trapezoidal in longitudinal section, and have opposite tips. The structure is simple, and the assembly and disassembly are convenient. When the positive and negative screw rods 16 rotate, when the left wedge-shaped block 13 provided with the positive screw lug seat 17 and the right wedge-shaped block 14 provided with the negative screw lug seat 18 slide relatively at the same time, the lower wedge-shaped block 15 is far away from the friction part fixing table 8 along the guide piece 19; when the left wedge block 13 with the positive lug 17 and the right wedge block 14 with the negative lug 18 slide back and forth at the same time, the lower wedge block 15 approaches the friction member fixing table 8 along the guide 19.

As a further preferred embodiment, as shown in fig. 10, the guide 19 is a guide pin 26, a pin cap of the guide pin 26 is disposed outside the lower wedge block 15, and the size of the pin cap is larger than the aperture of the guide through hole; the pin cap acts as a limit stop on the outside when the lower wedge 15 is moved away from the friction element holder 8 along the guide 19. The pin rod of the guide pin 26 passes through the guide through hole to be in threaded connection with the friction part fixing table 8, and the pin rod is in sliding connection with the guide through hole.

As a further preferred embodiment, as shown in fig. 8, the friction mechanism body 7 has a bilaterally symmetrical structure. The structure is simple, and the assembly and disassembly are convenient.

As a further preferred embodiment, as shown in fig. 8, the number of the friction mechanism bodies 7 is two, and the friction blocks 9 of the two friction mechanism bodies 7 are arranged at an interval in opposition. Two friction mechanism bodies 7 are adopted to cooperate to effectively clamp the clamped forming body, so that the clamping quality and the working efficiency are improved.

As a further preferred embodiment, as shown in fig. 8, the bottom surface of the lower wedge 15 is detachably connected to the friction block 9, for example, by using a threaded connection, so as to facilitate the detachment and installation, and the friction block 9 can be installed in a suitable manner according to the shape of the clamped molding.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be noted that, in the following embodiments, the terms "first" and "second" do not denote an absolute difference in structure and/or function, nor a sequential order of execution, but are merely used for convenience of description.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A tooth-type synchronous rotation multifunctional linear reciprocating tractor is provided with a rack and a driving device and is characterized by further comprising a linear reciprocating traction unit, wherein the linear reciprocating traction unit is provided with a linear reciprocating traction part and a friction roller assembly, the friction roller assembly is connected with the linear reciprocating traction part, and the linear reciprocating traction part is connected with the driving device;

the friction roller assembly is provided with a left semicircular slideway, a right semicircular slideway, a scissor fork type support, a left opening and closing shifting fork, a right opening and closing shifting fork, a bidirectional driving device, a left connecting piece, a right connecting piece and an opening and closing friction mechanism, wherein the left semicircular slideway is hinged with the scissor fork type support, and the right semicircular slideway is hinged with the scissor fork type support; the left semicircular slideway is fixedly connected with the left opening and closing shifting fork, the right semicircular slideway is fixedly connected with the right opening and closing shifting fork, power output ends on two sides of the bidirectional driving device are respectively connected with the left opening and closing shifting fork and the right opening and closing shifting fork, and the left semicircular slideway and the right semicircular slideway are mutually opened or closed under the power output of the bidirectional driving device; the left semicircular slideway is fixedly connected with the left connecting piece, and the right semicircular slideway is fixedly connected with the right connecting piece; the inner edge of the left semicircular slideway is provided with a left semicircular sliding groove, and the inner edge of the right semicircular slideway is provided with a right semicircular sliding groove; the opening and closing friction mechanism is provided with a friction mechanism body, the friction mechanism body is provided with a friction part fixing table and a friction block, the inner side of the friction part fixing table is connected with the friction block, the outer edge of the friction part fixing table is connected with a slideway rolling part shaft, the slideway rolling part shaft is connected with a first bearing, and the first bearing is arranged in the left semicircular chute and/or the right semicircular chute in a rolling connection manner; the friction mechanism bodies are arranged in a plurality of numbers; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissor fork type bracket respectively, the left semicircular chute and the right semicircular chute are communicated to form a complete circular chute, a plurality of friction mechanism bodies are circumferentially arranged in the complete circular chute, and the friction block of each friction mechanism body faces to the clamped forming body; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the scissors fork type bracket respectively and are opened, the left semicircular chute is separated from the right semicircular chute;

the linear reciprocating traction component is provided with a transmission device, a traction device and a reset device, the transmission device is provided with a transmission gear and a transmission gear shaft, the traction device is provided with a driving sector gear, a driving rack, a first linear guide rail, a support and a connecting rod, and the reset device is provided with a reset sector gear, a reset idle wheel, a reset rack, a second linear guide rail and a reset connecting plate; the transmission gear shaft is mounted on the frame through a bearing seat, the transmission gear, the driving sector gear and the reset sector gear are coaxially connected with the transmission gear shaft respectively, and the sector angles of the driving sector gear and the reset sector gear are not interfered with each other; the driving sector gear is meshed with the driving rack in a matched mode, the driving rack is connected with the rack through the first linear guide rail, a sliding block of the first linear guide rail is fixedly connected with the driving rack, and a guide rail of the first linear guide rail is fixedly connected with the rack; the driving rack is fixedly connected with the bracket, and the bracket is connected with one end of the connecting rod in a shaft connection manner; the number of the traction devices is provided with a pair, the other end of the connecting rod of one traction device is in shaft connection with the left connecting piece, and the other end of the connecting rod of the other traction device is in shaft connection with the right connecting piece; the reset sector gear is meshed with the reset idle gear in a matching way, the reset idle gear is meshed with the reset rack in a matching way, the reset rack is connected with the rack through the second linear guide rail, a sliding block of the second linear guide rail is fixedly connected with the reset rack, and a guide rail of the second linear guide rail is fixedly connected with the rack; the reset rack is fixedly connected with the reset connecting plate, and the reset connecting plate is fixedly connected with the bracket; when the driving sector gear and the driving rack are meshed to work, the reset sector gear is separated from the reset intermediate gear, and the friction roller assembly clamps the clamped forming body; when the reset sector gear and the reset intermediate gear are meshed to work, the driving sector gear is separated from the driving rack, and the friction roller assembly loosens the clamped forming body;

the number of the linear reciprocating traction units is multiple, and the linear reciprocating traction units are arranged side by side at intervals; the transmission gears of two adjacent linear reciprocating traction units are meshed and connected through a transmission intermediate wheel, so that the rotation directions of all the transmission gears are the same.

2. The multifunctional tooth-type synchronous rotary linear reciprocating traction machine as claimed in claim 1, wherein the number of the linear reciprocating traction units is n, and n is a natural number greater than or equal to 3; wherein the driving sector gear of at least one linear reciprocating traction unit is meshed with the driving rack matched with the driving sector gear, and the resetting sector gear of at least one other linear reciprocating traction unit is meshed with the resetting idle gear matched with the resetting idle gear.

3. The geared synchronous rotary multi-function linear reciprocating tractor according to claim 2, wherein said drive gear segments of at least two of said linear reciprocating tractor units are simultaneously operatively engaged with said drive rack associated therewith and are arranged in an annular array around said drive gear shaft when the axial centerlines of said drive gear shafts of all of said linear reciprocating tractor units are coincident.

4. The multifunctional tooth-type synchronous rotary linear reciprocating tractor according to claim 1, further comprising a first guide shaft and a second guide shaft, wherein the first guide shaft and the second guide shaft are respectively connected with the frame; the friction roller assembly of each linear reciprocating traction unit is provided with an installation seat, the installation seat is connected with the first guide shaft in a sliding mode, and the bidirectional driving device is fixedly connected with the installation seat; the scissor fork type support of the friction roller assembly of each linear reciprocating traction unit is provided with a guide hole, the second guide shaft penetrates through the guide hole, and the scissor fork type support is connected with the first guide shaft in a sliding mode.

5. The multifunctional tooth-type synchronous rotary linear reciprocating tractor according to claim 1, wherein the friction roller assembly is further provided with a pair of left semicircular flanges and a pair of right semicircular flanges, one left semicircular flange is respectively mounted on each of two sides of the left semicircular slideway, connecting half pipes of the two left semicircular flanges are oppositely arranged at intervals, and the connecting half pipe of each left semicircular flange and the left semicircular slideway form a pair of left semicircular chutes; the two sides of the right semicircular slideway are respectively provided with one right semicircular flange, the connecting half pipes of the two right semicircular flanges are oppositely arranged at intervals, and the connecting half pipe of each right semicircular flange and the right semicircular chute form a pair of right semicircular annular chutes; two ends of the slideway rolling component shaft are respectively connected with a first bearing, and the first bearings are correspondingly arranged in the left semi-annular chute and/or the right semi-annular chute in a rolling way; when the left semi-circular slideway and the right semi-circular slideway rotate around the pin shaft of the scissor fork type support and are closed, the left semi-circular chute and the right semi-circular chute are correspondingly communicated at the same side to form a pair of complete circular chutes.

6. The multifunctional tooth-type synchronous rotation linear reciprocating tractor according to claim 5, wherein the friction mechanism body is further provided with a left wedge block, a right wedge block, a lower wedge block, a positive and negative lead screw, a positive thread lug seat, a negative thread lug seat and a guide piece; the left wedge block and the right wedge block are oppositely arranged between the friction part fixing table and the lower wedge block, the left wedge block and the right wedge block are respectively in sliding connection with the friction part fixing table, the left wedge block is in sliding connection with a left sliding inclined plane of the lower wedge block, the right wedge block is in sliding connection with a right sliding inclined plane of the lower wedge block, and the bottom surface of the lower wedge block is connected with the friction block; one end of the positive and negative screw rod is in adaptive connection with the positive screw lug seat, the other end of the positive and negative screw rod is in adaptive connection with the negative screw lug seat, the positive screw lug seat and the negative screw lug seat are respectively arranged on the left side and the right side of the friction part fixing table, the positive screw lug seat is connected with the left wedge-shaped block, and the negative screw lug seat is connected with the right wedge-shaped block; the friction part fixing table is provided with a mounting through hole, and the positive and negative lead screws are fixedly arranged in the mounting through hole through second bearings; the lower wedge-shaped block is provided with a guide through hole, one end of the guide piece is connected with the friction part fixing table, and the other end of the guide piece penetrates through the guide through hole and extends out; when the positive and negative lead screw rotates, the left wedge block of the positive screw lug seat and the right wedge block of the negative screw lug seat are arranged, and the right wedge blocks are back to back or slide relatively, and the lower wedge block is close to or far away from the friction part fixing table along the guide piece.

7. The multifunctional geared synchronous rotary linear reciprocating tractor according to claim 6, wherein the left wedge block and the right wedge block are identical in structural shape, trapezoidal in longitudinal section and opposite in tip.

8. The multifunctional tooth-type synchronous rotary linear reciprocating tractor according to claim 6, wherein the guide member is a guide pin, a pin cap of the guide pin is arranged on the outer side of the lower wedge block, the size of the pin cap is larger than the aperture of the guide through hole, a pin rod of the guide pin penetrates through the guide through hole to be in threaded connection with the friction part fixing table, and the pin rod is in sliding connection with the guide through hole.

9. The multifunctional tooth-type synchronous rotary linear reciprocating tractor according to claim 6, wherein the friction mechanism body is of a left-right symmetrical structure.

10. The multifunctional tooth-type synchronous rotary linear reciprocating tractor according to claim 9, wherein the number of the friction mechanism bodies is two, and the friction blocks of the two friction mechanism bodies are arranged at intervals.