CN205891383U - A propulsion mechanism - Google Patents

Abstract

The utility model provides a propulsion mechanism, including first brace rod, second brace rod, promoting mainly mechanism and backstop mechanism, promote mainly the mechanism and include crossbeam, crossbeam moving mechanism, first push pedal and second push pedal, the crossbeam both ends are connected with crossbeam moving mechanism respectively, first push pedal upper end and crossbeam fixed connection, and the second push pedal is located between first push pedal and the backstop mechanism, and second push pedal upper end is connected with the crossbeam through the cylinder, backstop mechanism includes backplate and backstop moving mechanism, and backstop moving mechanism sets up on the second brace rod, and backplate one end is connected with backstop moving mechanism, and backstop moving mechanism drives the length direction upward round trip movement of backplate along the second brace rod. The utility model discloses a many parallel arrangement's push pedal with the product by a transfer chain propelling movement to another transfer chain owing to do not receive heavily quantitative limitation, propelling movement quantity at every turn is unrestricted to clamping -force between push pedal and the product is very little or be zero, consequently can not damage the extranal packing, and the reliability is high, fast.

Description

Propulsive mechanism

Technical field

This utility model is related to packaging facilities technical field, more particularly to a kind of propulsive mechanism.

Background technology

Milk, the packaging of beverage industry, gradually to automatization and intelligent direction development, are completed after fill by fill operation By conveying mechanism by canned Product transport to multiple package position, in each operation that product is packed typically how a plurality of Complete on pipeline, during entering another strip transmission line from a strip transmission line, need to be carried product, existing Carrying mechanism is many directly to be picked up product entirely through claw by the way of clamping, is transported to another conveying by side pipeline On line, this mode requires there is larger blessing power to product, easily damages product external packaging, in addition holds in transportation Easily drop, and because the chucking power of claw generation is relevant with the gravity of product clamping, therefore, the product quantity of disposable clamping has Limit, less efficient.

Utility model content

Technical problem to be solved in the utility model is: adopts method of clamping fragile outer in prior art to overcome Packaging, easily drop and deficiency that efficiency is low, this utility model provides a kind of propulsive mechanism, will using a plurality of push pedal be arrangeding in parallel Product is pushed on another strip transmission line by a strip transmission line, and due to not limited by weight, push quantity is unrestricted every time, And the chucking power very little between push pedal and product or be zero, thus without damaging outer package, reliability is high, speed is fast.

This utility model solves its technical problem technical scheme to be taken: a kind of propulsive mechanism, including along first The first brace rod be arrangeding in parallel on conveyer belt and the second conveyer belt width and the second brace rod, described first brace rod With second be provided with and can promote mainly mechanism and rear retaining device, described master along what the first brace rod length direction moved back and forth between brace rod Pushing mechanism includes crossbeam, cross beam movement mechanism, the first push pedal and the second push pedal, and described crossbeam two ends support with described first respectively Cross beam movement mechanism on muscle and the second brace rod connects, and described first push pedal and the second push pedal be arranged in parallel, and described first pushes away Plate upper end is fixedly connected with crossbeam, and described second push pedal is located between described first push pedal and rear retaining device, described second push pedal Upper end is connected with described crossbeam by cylinder；Described rear retaining device includes backboard and Hou Dang travel mechanism, and described rear gear moves Mechanism is arranged on described second brace rod, and described backboard one end is connected with described Hou Dang travel mechanism, and described rear gear moves Mechanism drives described backboard to move back and forth along along the length direction of described second brace rod.

Cross beam movement mechanism be used for product circulation promote, Hou Dang travel mechanism be used for product size different with row when Adjustment rear end spacing it is ensured that multiple rows of product is all the time along the second belt centerline symmetry arrangement, permissible in the form of push pedal Disposably promote multiple products, and chucking power very little will not damage the outer package of product, push pedal laterally has length, on the one hand There is provided thrust to simultaneously act on multiple products, in addition, adopting two push pedals, product can be positioned, preventing from being advanced over In journey, product is toppled over, and the fltting speed of such propulsive mechanism will not be limited by product.Backboard one side is used for spacing, separately On the one hand provide a support force to product, prevent from making product above topple in follow-up multiple rows of product progradation.

Further, described cross beam movement mechanism includes crossbeam rotating shaft, power drive mechanism, the first guiding mechanism and second and leads To mechanism, described crossbeam rotating shaft runs through described crossbeam along crossbeam axis, and described crossbeam rotating shaft is passed through bearing and rotated with described crossbeam Connect；

The first motor that described power drive mechanism includes being arranged on described first brace rod, the first reductor, first Timing Belt, the first drivewheel and the first driven pulley, described first motor, the first reductor and the first drivewheel company of transmission successively Connect, described first drivewheel and the first driven pulley are located at the internal ring both sides of described first Timing Belt, and with described first Timing Belt Engagement；

Described first guiding mechanism is arranged on inside described first brace rod, including first gear, the first tooth bar and first Roller, described first gear is connected with described crossbeam rotating shaft one end, is provided with the first tooth bar fixed block inside described first brace rod, Described first tooth bar is fixed on described first tooth bar fixed block medial surface, and described first gear is engaged with described first tooth bar；

Described second guiding mechanism is arranged on inside described second brace rod, including second gear, the second tooth bar and second Roller, described second gear is connected with the described crossbeam rotating shaft other end, is provided with the second tooth bar and fixes inside described second brace rod Block, described second tooth bar is fixed on described second tooth bar fixed block medial surface, and described second gear is nibbled with described second tooth bar Close；

The movement of crossbeam is realized by cross beam movement mechanism, in order to ensure precision and simplify design, using same Step band drives, and rack-and-pinion is guided, and reduces the frictional force at crossbeam two ends, improves the load capacity of actuating unit.

In order to improve the stability of rack pinion and crossbeam, described crossbeam two ends are respectively fixedly connected with the first roller and prop up Fagging and the second roller supporting plate, it is fixing with described first Timing Belt even that described first roller supporting plate passes through the first connecting plate Connect, outside described first roller supporting plate, be provided with two rows first roller, the first roller described in upper row and described first tooth bar Fixed block upper surface rolls and connects, and the first roller described in lower row is rolled with described first tooth bar fixed block lower surface and is connected, described It is provided with two rows second roller, on the second roller described in upper row and described second tooth bar fixed block outside second roller supporting plate Surface scrolls connect, and the second roller described in lower row is rolled with described second tooth bar fixed block lower surface and is connected.Upper row's roller has Supporting role, lower row's roller has guide effect.

Further, described first tooth bar fixed block lower surface is provided with the first direction recess, the first roller upper end described in lower row It is placed in described first direction recess；Described second tooth bar fixed block lower surface is provided with the second direction recess, second described in lower row Roller upper end is placed in described second direction recess.Groove pair roller has guide effect it is ensured that the movement locus of roller, enters one Step improves the mobile accuracy of crossbeam.

Further, for convenience electrical traces and improve connection reliability, under described first tooth bar fixed block Side is provided with threading drag chain, and described threading drag chain two ends are fixedly connected with described first tooth bar fixed block by drag chain supporting plate.Electrically Connection line is protected by threading drag chain, interfering with each other when on the one hand avoiding circuit to move with frame for movement, makes wiring Neatly, the reliability of mechanism can be improved, be easy to later maintenance.

Further, in order to ensure the tensile force of the first Timing Belt, described power drive mechanism also includes being arranged on described The first strainer on one driven pulley, described first strainer is used for the tensile force of adjustment the first Timing Belt.By tensioning Mechanism is adjusted the reliability service it is ensured that Timing Belt to synchronous belt tension, makes Timing Belt be operated in optimum performance state simultaneously, Improve service life.

Further, described Hou Dang travel mechanism is located at outside described second brace rod, including the second motor, the second deceleration Machine, the second Timing Belt, the second drivewheel and the second driven pulley, described second motor, the second reductor and the second drivewheel are successively It is in transmission connection, described second drivewheel and the second driven pulley are located at the internal ring both sides of described second Timing Belt, and with described second Timing Belt engages；Described backboard is fixedly connected with described second Timing Belt by Hou Dang bindiny mechanism, described rear gear moving machine Structure drives described backboard to move back and forth by described Hou Dang bindiny mechanism.

Further, in order to ensure the tensile force of the second Timing Belt, described Hou Dang travel mechanism also includes being arranged on described The second strainer on two driven pulleys, the second strainer is used for the tensile force of adjustment the second Timing Belt.By strainer Reliability service it is ensured that Timing Belt is adjusted to synchronous belt tension, makes Timing Belt be operated in optimum performance state simultaneously, improve Service life.

Further, described first brace rod upper surface is provided with front limit sheet and rear banking stop, described front limit sheet and rear limit The height of bit slice is matched with the height of described first connecting plate.Machinery knot is carried out by front limit sheet and rear banking stop to crossbeam Structure spacing, it is to avoid control system fault brings potential safety hazard.

Further, in order to ensure seamlessly transitting between first conveyer belt and the second conveyer belt, described first conveyer belt and It is provided with transition mechanism, described transition mechanism includes front rebound, rear rebound, hold-down support and rotation and drives between second conveyer belt Dynamic assembly, described front rebound two ends are passed through the rotation of rotating shaft and described hold-down support and are connected, described rear rebound two ends with described Hold-down support is fixedly connected, and described rotary drive assembly includes jacking cylinder, hinged seat and tailstock fixed support, described hinged seat It is fixedly connected with described front rebound bottom surface, and described hinged seat is located at described rotating shaft with the link position of described front rebound Axis front end, the push rod of described jacking cylinder is hinged with described hinged seat, and described hold-down support and tailstock fixed support are all and machine Frame is fixedly connected.

Product conveying in first conveyer belt is when coming, and jacking cylinder is lifted makes front rebound near the one of first conveyer belt Tilt on the side, the bottom surface making front rebound be higher than product, product is played with the effect of guiding, after product puts in place, jacking gas Cylinder retraction makes the edge of front rebound be less than the upper surface of first conveyer belt, is easy to propulsive mechanism and pushes away product in first conveyer belt To on the second conveyer belt.

Further, in order to realize the spacing of product, the gear turn-up mechanism being arranged on first conveyer belt end, described gear are also included Turn-up mechanism includes base adjustable plate, vertical baffle plate and baffle plate fixed block, and described base adjustable plate bottom is fixed on support, described Baffle plate fixed block is fixed on above described base adjustable plate, and described vertical baffle plate is fixed on described baffle plate fixed block towards described The side side of one conveyer belt, described vertical baffle plate extends to the edge of described second conveyer belt to the second belt direction.By Length in vertical baffle plate extends to the edge of the second conveyer belt, the product in outside is supported spacing it is ensured that to During front propulsion, product will not be toppled over to conveying tape motion direction.

Work process:

Adjust the first push pedal, the second push pedal and backboard to be arranged in parallel successively, the size according to product and row, after adjustment Position on the second conveyer belt for the baffle plate, can make product with the second belt centerline symmetry arrangement.Entered with two scheduling product below Process is described in detail as a example row conveying.

(1) cross beam movement mechanism drives the first push pedal and the second push pedal to move to above first conveyer belt, first conveyer belt On product enter between the first push pedal and the second push pedal；

(2) reach predetermined quantity when entering the product between the first push pedal and the second push pedal, mechanism carries by cross beam movement Dynamic first push pedal and the second push pedal are moved to the second belt direction, simultaneously by the product between the first push pedal and the second push pedal It is pushed on the second conveyer belt, and make product near backboard front end；

(3) after first row product puts in place, the second push pedal is lifted up by cylinder, and cross beam movement mechanism drives the first push pedal It return back to above first conveyer belt with the second push pedal, the second push pedal falls again, wait next group product to enter the first push pedal and the Between two push pedals；

(4) operation in the repeat the above steps 2 when product quantity reaches predetermined value again, makes product shift second onto defeated Send the first row product front end on band, the product on the second conveyer belt reaches predetermined row, i.e. 2 row；

(5) first push pedals and the second push pedal return to above first conveyer belt, start the second conveyer belt motion simultaneously, carry Two scheduling product enter into subsequent processing, the second conveyer belt stop motion, wait the transport of next group product.

In the second conveyer belt motor process, backboard also has guiding and the effect of positioning to two scheduling product, repeats above-mentioned Step (1), to step (5), realizes automated handling between two conveyer belts for the product.

The beneficial effects of the utility model are: a kind of propulsive mechanism that this utility model provides, and are be arranged in parallel using a plurality of Push pedal product is pushed on another strip transmission line by a strip transmission line, due to not limited by weight, every time push quantity Unrestricted, and the chucking power very little between push pedal and product or be zero, thus without damaging outer package, reliability is high, Speed is fast.

Brief description

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of this utility model most preferred embodiment；

Fig. 2 is the structural representation of the first push pedal in Fig. 1；

Fig. 3 is the mplifying structure schematic diagram of a in Fig. 1；

Fig. 4 is the mplifying structure schematic diagram of b in Fig. 1；

Fig. 5 is the mplifying structure schematic diagram of c in Fig. 1；

Fig. 6 is the structural representation of the power drive mechanism on the first brace rod in Fig. 1；

Fig. 7 is the top view of this utility model most preferred embodiment；

Fig. 8 is the profile of a-a in Fig. 7；

Fig. 9 is the mplifying structure schematic diagram of d in Fig. 8；

Figure 10 is the mplifying structure schematic diagram of e in Fig. 8；

Figure 11 is the structural representation of transition mechanism；

Figure 12 is the structural representation of transition mechanism；

Figure 13 is the structural representation of this utility model most preferred embodiment；

Figure 14 is the mplifying structure schematic diagram of f in Figure 13.

In figure: 1, first conveyer belt, the 2, second conveyer belt, the 3, first brace rod, the 4, second brace rod, 5, crossbeam, 6, One push pedal, 61, vertical connection strap, 62, lateral connection bar, 63, height adjustment mechanism, the 7, second push pedal, 71, push pedal adjustable plate, 8th, crossbeam rotating shaft, the 9, first roller supporting plate, the 10, second roller supporting plate, 11, bearing, 12, first gear, the 13, second tooth Wheel, 14, u shape fixed seat, 15, cover plate, 16, cylinder pasting board, 17, cylinder, the 18, first motor, the 19, first reductor, 20, first Timing Belt, the 21, first drivewheel, the 22, first driven pulley, the 23, first connecting plate, the 24, first strainer, the 25, first tooth bar, 26th, the first roller, the 27, first tooth bar fixed block, the 28, first direction recess, the 29, second tooth bar, the 30, second roller, 31, second Tooth bar fixed block, the 32, second direction recess, 33, backboard, the 34, second motor, the 35, second reductor, the 36, second Timing Belt, 37th, the second drivewheel, the 38, second driven pulley, the 39, second strainer, 40, threading drag chain, 41, drag chain supporting plate, 42, rear gear even Connection mechanism, 43, front limit sheet, 44, rear banking stop, 45, transition mechanism, 45-1, front rebound, 45-2, rear rebound, 45-3, Hold-down support, 45-4, jacking cylinder, 45-5, hinged seat, 45-6, tailstock fixed support, 46, base adjustable plate, 47, vertical keep off Plate, 48, baffle plate fixed block.

Specific embodiment

Presently in connection with accompanying drawing, this utility model is described in detail.This figure is the schematic diagram simplifying, only in a schematic way Basic structure of the present utility model is described, therefore it only shows the composition relevant with this utility model.

As represented in figures 1 through 14, a kind of propulsive mechanism of the present utility model, including along first conveyer belt 1 and the second conveyer belt 2 The first brace rod 3 be arrangeding in parallel on width and the second brace rod 4, are provided between the first brace rod 3 and the second brace rod 4 Mechanism and rear retaining device can be promoted mainly along what the first brace rod 3 length direction moved back and forth.

Promote mainly mechanism and include crossbeam 5, cross beam movement mechanism, the first push pedal 6 and the second push pedal 7, cross beam movement mechanism includes Crossbeam rotating shaft 8, power drive mechanism, the first guiding mechanism and the second guiding mechanism, crossbeam 5 is made using section bar, crossbeam 5 two ends It is respectively fixedly connected with the first roller supporting plate 9 and the second roller supporting plate 10 of rectangle, crossbeam rotating shaft 8 runs through along crossbeam 5 axis Crossbeam 5, crossbeam rotating shaft 8 is passed through bearing 11 and is connected with crossbeam 5 rotation, and crossbeam 5 is extended to both sides in crossbeam rotating shaft 8 two ends, and holds Portion is connected with the rotating shaft of first gear 12 and second gear 13 respectively；First push pedal 6 and the second push pedal 7 be arranged in parallel, as Fig. 2 institute Show, the first push pedal 6 includes two vertical connection straps 61 and two lateral connection bars 62, vertical connection strap 61 top and crossbeam 5 bottom Face is fixedly connected, and two vertical connection straps 61 vertically be arranged in parallel, and lateral connection bar 62 is connected laterally at perpendicular from top to bottom successively To on connection strap 61, vertical connection strap 61 is provided with height adjustment mechanism 63, can be adjusted laterally by height adjustment mechanism 63 Level altitude on vertical connection strap 61 for the connection strap 62, to adapt to the product of differing heights；As shown in figure 3, it is fixing on crossbeam 5 It is connected with u shape fixed seat 14, u shape fixed seat 14 is fixed on crossbeam 5 by cover plate 15, the side of u shape fixed seat 14 is fixing even Connect cylinder pasting board 16, cylinder 17 is connected to the side of cylinder pasting board 16, cylinder 17 push rod end is connected with the second push pedal 7 upper end, The second push pedal 7 can be driven to move up and down, as shown in figure 4, the second push pedal 7 is the thin plate of l type for section, the second push pedal 7 is near The inside of one end of one brace rod 3 is provided with push pedal adjustable plate 71, can extend the second push pedal 7 by adjusting push pedal adjustable plate 71 Distance on conveyer belt length direction, such that it is able to change the quantity accommodating single product；

As shown in fig. 6, power drive mechanism includes the first motor 18, the first reductor being arranged on the first brace rod 3 19th, the first Timing Belt 20, the first drivewheel 21 and the first driven pulley 22, the first motor 18, the first reductor 19 and the first active Wheel 21 is in transmission connection successively, and the first drivewheel 21 and the first driven pulley 22 are located at the internal ring both sides of the first Timing Belt 20, and with the One Timing Belt 20 engages；First roller supporting plate 9 is fixedly connected with the first Timing Belt 20 by the first connecting plate 23, realizes moment Transmission；Power drive mechanism also includes the first strainer 24 being arranged on the first driven pulley 22, the first strainer 24 For adjusting the tensile force of the first Timing Belt 20.

First guiding mechanism is arranged on inside the first brace rod 3, and the second guiding mechanism is arranged on inside the second brace rod 4, And first guiding mechanism and the second guiding mechanism structure essentially identical.

As shown in figs. 5 and 9, the first guiding mechanism includes first gear 12, the first tooth bar 25 and the first roller 26, and first Gear 12 is connected with crossbeam rotating shaft 8 one end, is provided with the first tooth bar fixed block 27 inside the first brace rod 3, and the first tooth bar 25 passes through Screw is fixed on the first tooth bar fixed block 27 medial surface, and downwards, first gear 12 is located at the first tooth bar to the flank of tooth of the first tooth bar 25 Engage below 25 and with the first tooth bar 25；It is provided with four the first rollers 26 outside first roller supporting plate 9, be divided into two rows, On ranked first roller 26 and the first tooth bar fixed block 27 upper surface and roll and be connected, the first tooth bar fixed block 27 lower surface is provided with first Direction recess 28, under ranked first roller 26 upper end and be placed in the first direction recess 28, under ranked first roller 26 and the first tooth bar is solid Determine block 27 lower surface and roll connection；

As shown in Figure 10, Figure 13 and Figure 14, the second guiding mechanism includes second gear 13, the second tooth bar 29 and the second roller 30, second gear 13 is connected with crossbeam rotating shaft 8 other end, is provided with the second tooth bar fixed block 31, the second tooth inside the second brace rod 4 Bar 29 is fixed on the second tooth bar fixed block 31 medial surface, and second gear 13 is engaged with the second tooth bar 29；Second roller supporting plate It is provided with four the second rollers 30 outside 10, is divided into two rows, above ranked second roller 30 and the second tooth bar fixed block 31 upper surface Roll and connect, the second tooth bar fixed block 31 lower surface is provided with the second direction recess 32, under ranked second roller 30 upper end and be placed in second In direction recess 32, under ranked second roller 30 and the second tooth bar fixed block 31 lower surface and roll and be connected.

As shown in figure 1, rear retaining device includes backboard 33, Hou Dang bindiny mechanism 42 and Hou Dang travel mechanism, gear moves afterwards Mechanism is arranged on outside the second brace rod 4, and backboard 33 one end is connected with Hou Dang travel mechanism, and Hou Dang travel mechanism keeps off after driving Plate 33 moves back and forth along along the length direction of the second brace rod 4.Second push pedal 7 is located between the first push pedal 6 and backboard 33.

Hou Dang travel mechanism includes the second motor 34, the second reductor 35, the second Timing Belt 36, the second drivewheel 37 and Two driven pulleys 38, the second motor 34, the second reductor 35 and the second drivewheel 37 are in transmission connection successively, the second drivewheel 37 and Two driven pulleys 38 are located at the internal ring both sides of the second Timing Belt 36, and engage with the second Timing Belt 36；Backboard 33 passes through rear gear even Connection mechanism 42 is fixedly connected with the second Timing Belt 36, and Hou Dang travel mechanism drives backboard 33 back and forth by Hou Dang bindiny mechanism 42 Mobile.Hou Dang travel mechanism also includes the second strainer 39 being arranged on the second driven pulley 38, and the second strainer 39 is used In the tensile force adjusting the second Timing Belt 36.

As shown in figure 1, being provided with threading drag chain 40 below the first tooth bar fixed block 27, drag chain support is passed through at threading drag chain 40 two ends Plate 41 is connected with the first tooth bar fixed block 27.First brace rod 3 upper surface is provided with front limit sheet 43 and rear banking stop 44, front limit The height of piece 43 and rear banking stop 44 is matched with the height of the first connecting plate 23.Right by front limit sheet 43 and rear banking stop 44 Crossbeam 5 carries out the spacing of frame for movement, it is to avoid control system fault brings potential safety hazard.

As is illustrated by figs. 11 and 12, in order to ensure seamlessly transitting between first conveyer belt 1 and the second conveyer belt 2, first It is provided with transition mechanism 45, transition mechanism 45 includes front rebound 45-1, rear rebound 45- between conveyer belt 1 and the second conveyer belt 2 2nd, hold-down support 45-3 and rotary drive assembly, front rebound 45-1 two ends are passed through rotating shaft and are connected with hold-down support 45-3 rotation, Rebound 45-2 two ends are fixedly connected with hold-down support 45-3 afterwards, and rotary drive assembly includes jacking cylinder 45-4, hinged seat 45-5 and tailstock fixed support 45-6, hinged seat 45-5 are fixedly connected with front rebound 45-1 bottom surface, and hinged seat 45-5 with front The link position of rebound 45-1 is located at the axis front end of rotating shaft, and the push rod of jacking cylinder 45-4 is hinged with hinged seat 45-5, Gu Determine bearing 45-3 to be all fixedly connected with frame with tailstock fixed support 45-6.

As shown in figure 4, gear turn-up mechanism includes base adjustable plate 46, vertical baffle plate 47 and baffle plate fixed block 48, base is adjusted Plate 46 bottom is fixed on support, and baffle plate fixed block 48 is fixed on above base adjustable plate 46, and vertical baffle plate 47 is fixed on baffle plate Fixed block 48 extends to the second conveyer belt towards the side side of first conveyer belt 1, vertical baffle plate 47 to the second conveyer belt 2 direction 2 edge.In progradation, because the length of vertical baffle plate 47 extends to the edge of the second conveyer belt 2, the product to outside Be supported spacing it is ensured that during pushing ahead product will not to conveying tape motion direction topple over.

With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work Personnel can carry out various change and modification completely in the range of without departing from this utility model.This utility model The content that technical scope is not limited in description it is necessary to determine its technical scope according to right.

Claims (10)

1. a kind of propulsive mechanism it is characterised in that: include along in first conveyer belt (1) and the second conveyer belt (2) width flat First brace rod (3) of row setting and the second brace rod (4), are provided between described first brace rod (3) and the second brace rod (4) Mechanism and rear retaining device can be promoted mainly along what the first brace rod (3) length direction moved back and forth, the described mechanism that promotes mainly includes crossbeam (5), cross beam movement mechanism, the first push pedal (6) and the second push pedal (7), described crossbeam (5) two ends respectively with described first brace rod (3) the cross beam movement mechanism on and the second brace rod (4) connects, and described first push pedal (6) and the second push pedal (7) be arranged in parallel, Described first push pedal (6) upper end is fixedly connected with crossbeam (5), and described second push pedal (7) is located at described first push pedal (6) and rear gear Between mechanism, described second push pedal (7) upper end is connected with described crossbeam (5) by cylinder (17)；After described rear retaining device includes Baffle plate (33) and Hou Dang travel mechanism, described Hou Dang travel mechanism is arranged on described second brace rod (4), described backboard (33) one end is connected with described Hou Dang travel mechanism, and described Hou Dang travel mechanism drives described backboard (33) along described second Move back and forth on the length direction of support muscle (4).

2. propulsive mechanism as claimed in claim 1 it is characterised in that: described cross beam movement mechanism includes crossbeam rotating shaft (8), dynamic Force transmission mechanism, the first guiding mechanism and the second guiding mechanism, described crossbeam rotating shaft (8) runs through described horizontal stroke along crossbeam (5) axis Beam (5), described crossbeam rotating shaft (8) is passed through bearing (11) and is connected with described crossbeam (5) rotation,

Described power drive mechanism includes the first motor (18), the first reductor being arranged on described first brace rod (3) (19), the first Timing Belt (20), the first drivewheel (21) and the first driven pulley (22), described first motor (18), the first deceleration Machine (19) and the first drivewheel (21) are in transmission connection successively, and described first drivewheel (21) and the first driven pulley (22) are positioned at described The internal ring both sides of the first Timing Belt (20), and engage with described first Timing Belt (20)；

Described first guiding mechanism is arranged on inside described first brace rod (3), including first gear (12), the first tooth bar (25) With the first roller (26), described first gear (12) is connected with described crossbeam rotating shaft (8) one end, in described first brace rod (3) Side is provided with the first tooth bar fixed block (27), and described first tooth bar (25) is fixed on described first tooth bar fixed block (27) medial surface, And described first gear (12) engaged with described first tooth bar (25)；

Described second guiding mechanism is arranged on inside described second brace rod (4), including second gear (13), the second tooth bar (29) With the second roller (30), described second gear (13) is connected with described crossbeam rotating shaft (8) other end, described second brace rod (4) Inner side is provided with the second tooth bar fixed block (31), and described second tooth bar (29) is fixed on inside described second tooth bar fixed block (31) Face, and described second gear (13) engaged with described second tooth bar (29)；

Described crossbeam (5) two ends are respectively fixedly connected with the first roller supporting plate (9) and the second roller supporting plate (10), and described first Roller supporting plate (9) is fixedly connected with described first Timing Belt (20) by the first connecting plate (23), described first roller supporting It is provided with two rows first roller (26), the first roller (26) described in upper row and described first tooth bar fixed block outside plate (9) (27) upper surface rolls and connects, and the first roller (26) described in lower row is rolled even with described first tooth bar fixed block (27) lower surface Connect, outside described second roller supporting plate (10), be provided with two rows second roller (30), the second roller (30) described in upper row with Described second tooth bar fixed block (31) upper surface rolls connection, the second roller (30) described in lower row and described second tooth bar fixed block (31) lower surface rolls and connects.

3. propulsive mechanism as claimed in claim 2 it is characterised in that: described first tooth bar fixed block (27) lower surface is provided with One direction recess (28), the first roller (26) upper end described in lower row is placed in described first direction recess (28)；Described second tooth Bar fixed block (31) lower surface is provided with the second direction recess (32), and the second roller (30) upper end described in lower row is placed in described second and leads Into groove (32).

4. propulsive mechanism as claimed in claim 3 it is characterised in that: be provided with threading below described first tooth bar fixed block (27) Drag chain (40), it is fixing with described first tooth bar fixed block (27) even that drag chain supporting plate (41) is passed through at described threading drag chain (40) two ends Connect.

5. propulsive mechanism as claimed in claim 2 it is characterised in that: described power drive mechanism also includes being arranged on described The first strainer (24) on one driven pulley (22), described first strainer (24) is used for adjustment the first Timing Belt (20) Tensile force.

6. propulsive mechanism as claimed in claim 1 it is characterised in that: described Hou Dang travel mechanism be located at described second brace rod (4) outside, including the second motor (34), the second reductor (35), the second Timing Belt (36), the second drivewheel (37) and second from Driving wheel (38), described second motor (34), the second reductor (35) and the second drivewheel (37) are in transmission connection successively, and described second Drivewheel (37) and the second driven pulley (38) are located at the internal ring both sides of described second Timing Belt (36), and with described second Timing Belt (36) engage；Described backboard (33) is fixedly connected with described second Timing Belt (36) by Hou Dang bindiny mechanism (42), described Hou Dang travel mechanism passes through described Hou Dang bindiny mechanism (42) and drives described backboard (33) to move back and forth.

7. propulsive mechanism as claimed in claim 6 it is characterised in that: described Hou Dang travel mechanism also includes being arranged on described The second strainer (39) on two driven pulleys (38), the second strainer (39) is used for the tensioning of adjustment the second Timing Belt (36) Power.

8. propulsive mechanism as claimed in claim 2 it is characterised in that: described first brace rod (3) upper surface is provided with front limit Piece (43) and rear banking stop (44), the height of described front limit sheet (43) and rear banking stop (44) and described first connecting plate (23) Height match.

9. propulsive mechanism as claimed in claim 1 it is characterised in that: described first conveyer belt (1) and the second conveyer belt (2) it Between be provided with transition mechanism (45), described transition mechanism (45) includes front rebound (45-1), rear rebound (45-2), hold-down support (45-3) and rotary drive assembly, described front rebound (45-1) two ends are passed through rotating shaft and are rotated even with described hold-down support (45-3) Connect, described rear rebound (45-2) two ends are fixedly connected with described hold-down support (45-3), described rotary drive assembly includes pushing up Rise cylinder (45-4), hinged seat (45-5) and tailstock fixed support (45-6), described hinged seat (45-5) and described front rebound (45-1) bottom surface is fixedly connected, and described hinged seat (45-5) is located at described turn with the link position of described front rebound (45-1) The axis front end of axle, the push rod of described jacking cylinder (45-4) is hinged with described hinged seat (45-5), described hold-down support (45- 3) all it is fixedly connected with frame with tailstock fixed support (45-6).

10. propulsive mechanism as claimed in claim 1 it is characterised in that: also include being arranged on the gear of first conveyer belt (1) end Turn-up mechanism, described gear turn-up mechanism includes base adjustable plate (46), vertical baffle plate (47) and baffle plate fixed block (48), and described base is adjusted Section plate (46) bottom is fixed on support, and described baffle plate fixed block (48) is fixed on described base adjustable plate (46) above, described Vertical baffle plate (47) is fixed on the side side towards described first conveyer belt (1) for the described baffle plate fixed block (48), described vertical Baffle plate (47) extends to the edge of described second conveyer belt (2) to the second conveyer belt (2) direction.