CN113911766B

CN113911766B - Food package bag is with spacing formula conveyor

Info

Publication number: CN113911766B
Application number: CN202111518362.6A
Authority: CN
Inventors: 柳鸷
Original assignee: Sichuan Yuanyuan Yuntian Food Technology Co ltd
Current assignee: Sichuan Yuanyuan Yuntian Food Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-01
Anticipated expiration: 2041-12-13
Also published as: CN113911766A

Abstract

The invention discloses a limiting type conveying device for food packaging bags, which comprises a chain type conveying mechanism which is obliquely arranged, wherein the chain type conveying mechanism comprises two groups of chain transmission mechanisms which are arranged in parallel, a plurality of rotary supporting devices are arranged between the two groups of chain transmission mechanisms and are uniformly arranged along the conveying direction of the chain transmission mechanisms, each rotary supporting device comprises a supporting shaft and a supporting plate, one end of each supporting shaft is connected with one chain transmission mechanism through a torsion spring, the other end of each supporting shaft is connected with the other chain transmission mechanism through a limiting rotary piece, the supporting plate is fixedly sleeved on the supporting shaft, the supporting plates and the conveying direction of the chain transmission mechanisms are arranged in an acute angle, the limiting rotating piece is used for enabling a plurality of supporting plates for supporting the packaging bags to rotate along the conveying direction of the chain transmission mechanism to be connected into a supporting plane and limiting the sliding of the packaging bags through the supporting plates positioned below the packaging bags. The problem that the existing conveying device is easy to slide from low to high in conveying of the packaging bags is solved.

Description

Food package bag is with spacing formula conveyor

Technical Field

The invention relates to the technical field of goods transportation, in particular to a limiting type conveying device for food packaging bags.

Background

The food conveying device plays an important role in the production of bagged food of each enterprise, has strong conveying capacity and long conveying distance, can form a spatial conveying line and can also carry out vertical, horizontal and inclined assembly line conveying, greatly improves the efficiency of the production of the bagged food, and saves a large amount of manpower and material resources, thereby having wide application; the course of working of food roughly is the transport of food ingredients, raw materials processing, the loading transportation of food package and food package bag, need in the course of the transport of food ingredients with the shipment of raw materials wrapping bag, also need pack and the shipment carries out the food logistics transportation after same food processing is accomplished, because the shipment process needs to carry the wrapping bag to the eminence from the low, for reducing artifical intensity of labour, improve handling efficiency, prior art adopts the conveyor of slope setting to carry out the conveying of wrapping bag, but not set up stop gear on the conveyor among the prior art, lead to the wrapping bag to slide down from conveyor easily in the in-process of transportation, the wrapping bag that slides down this moment will strike other wrapping bags, thereby drive the wrapping bag of below and slide to conveyor's bottom together, thereby influence the normal operating of transportation operation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a limiting type conveying device for food packaging bags, which is used for solving the problem that the conventional conveying device is easy to slide from low to high in conveying of the packaging bags.

The purpose of the invention is realized by the following technical scheme: a limiting type conveying device for food packaging bags comprises an obliquely arranged chain type conveying mechanism, wherein the chain type conveying mechanism comprises two groups of chain transmission mechanisms which are arranged in parallel, a plurality of rotary supporting devices are arranged between the two groups of chain transmission mechanisms, and the rotary supporting devices are uniformly arranged along the conveying direction of the chain transmission mechanisms;

rotatory strutting arrangement includes back shaft and backup pad, the one end of back shaft is passed through the torsional spring and one of them chain drive connects, the other end of back shaft passes through spacing rotating member and another chain drive connects, the fixed cover of backup pad is established on the back shaft, the backup pad with chain drive's direction of transfer is the acute angle setting, spacing rotating member is used for making a plurality of backup pads that support the wrapping bag rotate along chain drive's direction of transfer and connects into the support plane and through adjacent and the backup pad restriction wrapping bag's that is located the not touching wrapping bag below the support plane slip of support plane.

Further, spacing rotating member includes shell body and circular inner shell, the shell body is fixed to be set up chain drive is last, the circular recess has been seted up on the shell body, circular inner shell sets up in the circular recess, be formed with rotation space between the outer wall of circular inner shell and the inner wall of shell body, it is provided with a plurality of balls to slide in the rotation space, the through-hole has been seted up to circular inner shell, the back shaft wear to locate in the through-hole and with circular inner shell fixed connection, run through on the circular inner shell and seted up the arc wall, it is provided with the gag lever post to slide in the arc wall, the gag lever post with the connection can be dismantled to the shell body.

Further, when the torsion spring is in a normal state, the end part, close to the transmission direction of the chain transmission mechanism, of the arc-shaped groove abuts against the limiting rod.

Further, chain drive includes the drive sprocket and the driven sprocket that rotate the setting, driven sprocket through the endless chain with drive sprocket transmission is connected.

Further, chain conveyor still includes driving shaft, driven shaft and two delivery boards, two delivery board parallel arrangement, driving shaft and driven shaft all are located two between the delivery board, the driving shaft with the delivery board rotates to be connected, the both ends of driven shaft all rotate and are connected with glide machanism, glide machanism with delivery board sliding connection, the fixed cover of driving sprocket is established on the driving shaft, the fixed cover of driven sprocket is established on the driven shaft.

Furthermore, the sliding mechanism comprises a rectangular shell and an inner ring, a chute is formed in the conveying plate along the conveying direction of the chain transmission mechanism, the rectangular shell is arranged in the chute in a sliding mode, a circular through hole is formed in the rectangular shell, the inner ring is arranged in the circular through hole, a plurality of rollers are arranged between the inner wall of the rectangular shell and the outer wall of the inner ring in a sliding mode, and the driven shaft is fixedly connected with the inner ring.

Furthermore, a plurality of limiting through holes are formed in the top of the conveying plate along the conveying direction of the chain transmission mechanism, the limiting through holes are communicated with the sliding groove, a threaded hole is formed in the top of the rectangular shell, and a fastening bolt penetrates through one of the limiting through holes to be in threaded connection with the threaded hole in the rectangular shell.

Further, still including removing the underframe, chain conveyor inclines to set up remove on the underframe, chain conveyor's input height is less than the output height, the lateral wall of delivery board through the round pin axle with the inside wall of removing the underframe is articulated, two the bottom of delivery board is passed through the connecting rod and is connected, it has the cylinder to hinge on the removal underframe, the telescopic shaft of cylinder with the connecting rod is articulated.

Further, be formed with the drive space between delivery board and the chain drive, be fixed with first driven pulley on the driving shaft, first driven pulley is located in the drive space, be provided with the motor on the removal underframe, the fixed driving pulley that is provided with of output shaft of motor, driving pulley pass through driving belt with first driven pulley transmission is connected.

Further, the tensioning spout has been seted up to the lateral wall that removes the underframe, it is provided with straining device to slide in the tensioning spout, straining device is including removing base and second driven pulley, it slides and sets up to remove the base in the tensioning spout, it is provided with the second driven pulley to rotate on the base to remove, the second driven pulley is located between driving pulley and the first driven pulley, the second driven pulley with the driving belt transmission is connected, be provided with the spring in the tensioning spout, the both ends of spring respectively with remove the underframe and remove the base and be connected, the spring is in tensile state and is used for driving the removal base and keeps away from the driving shaft and remove and make driving belt produce the tensile force.

The invention has the beneficial effects that:

1. the utility model provides a spacing formula conveyor for food package bag, the backup pad is the acute angle slope setting for chain conveyor's transport plane, and the backup pad initial position can only rotate along chain drive's direction of transfer, therefore, after the wrapping bag was placed on chain conveyor, the backup pad that supports the wrapping bag rotated to being parallel with the plane of transport because of the gravity that receives the wrapping bag, thereby make the backup pad of a plurality of support wrapping bags form the area of contact of support plane increase wrapping bag and backup pad, the backup pad that lies in the wrapping bag below simultaneously does not contact the wrapping bag and is the spacing cardboard of tilt state formation restriction wrapping bag gliding, thereby effectively prevent the wrapping bag at the in-process gliding of transportation, make chain conveyor can last stable carry the wrapping bag, improve food package bag's loading efficiency.

2. Make the driven shaft can rotate the normal transmission of guaranteeing annular chain through glide machanism, can also slide on the delivery board and adjust the interval between driven shaft and the driving shaft, reduce the installation of the interval ring chain of being convenient for between driven shaft and the driving shaft, increase the interval between driven shaft and the driving shaft after the installation is accomplished, make annular chain produce the pretightning force and carry steadily.

3. The inclination angle of the chain type conveying mechanism can be adjusted through the air cylinder, but after the inclination angle of the chain type conveying mechanism is changed, the position relation of the driving belt wheel and the first driven belt wheel is changed, so that the transmission belt is loosened, the transmission belt is always in a tensioning state through the movable second driven belt wheel, the motor can still drive the driving shaft to rotate through the transmission belt when the angle of the chain type conveying mechanism is changed, and then the chain type conveying mechanism is operated to convey packaging bags.

Drawings

FIG. 1 is a diagram illustrating a state of a limiting type conveying device for food packaging bags for conveying food according to the present invention;

FIG. 2 is a perspective view of a chain type conveying mechanism in the limiting type conveying device for the food packaging bag according to the present invention;

FIG. 3 is a perspective view of a rotary supporting device of the limiting type conveying device for food packaging bags according to the present invention;

FIG. 4 is a schematic structural view of a rotation limiting member of the limiting type conveying device for food packaging bags according to the present invention;

FIG. 5 is a schematic connection diagram of a driven shaft and a sliding mechanism in the limiting type conveying device for the food packaging bag according to the present invention;

FIG. 6 is a perspective view of a sliding mechanism in the limiting type conveying device for food packaging bags according to the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 1;

FIG. 8 is an enlarged view of FIG. 1 at B;

FIG. 9 is a perspective view of a limiting type conveying device for food packaging bags according to the present invention;

in the figure, 1-chain conveyor, 2-chain drive, 3-rotary support, 4-support shaft, 5-support plate, 6-torsion spring, 7-limit rotary, 8-outer shell, 9-circular inner shell, 10-circular groove, 11-ball, 12-through hole, 13-arc groove, 14-limit rod, 15-driving shaft, 16-driven shaft, 17-conveying plate, 18-sliding mechanism, 19-driving sprocket, 20-driven sprocket, 21-endless chain, 22-rectangular shell, 23-inner ring, 24-circular through hole, 25-roller, 26-sliding groove, 27-through hole, 28-threaded hole, 29-fastening bolt, 30-first driven pulley, 31-moving underframe, 32-connecting rod, 33-cylinder, 34-motor, 35-driving belt pulley, 36-driving belt, 37-tensioning chute, 38-moving base, 39-second driven belt pulley, and 40-spring.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

Embodiment one, as shown in fig. 1 to 4, a limiting type conveying device for food packaging bags comprises a chain type conveying mechanism 1 which is obliquely arranged, the chain type conveying mechanism 1 comprises two groups of chain transmission mechanisms 2 which are arranged in parallel, a plurality of rotary supporting devices 3 are arranged between the two groups of chain transmission mechanisms 2, the plurality of rotary supporting devices 3 are uniformly arranged along the conveying direction of the chain transmission mechanisms 2, each rotary supporting device 3 comprises a supporting shaft 4 and a supporting plate 5, one end of each supporting shaft 4 is connected with one chain transmission mechanism 2 through a torsion spring 6, the other end of each supporting shaft 4 is connected with the other chain transmission mechanism 2 through a limiting rotary piece 7, the supporting plate 5 is fixedly sleeved on the supporting shaft 4, the supporting plate 5 is arranged at an acute angle with the conveying direction of the chain transmission mechanisms 2 (i.e. the supporting plate 5 is arranged at an acute angle with the conveying surface of the chain type conveying mechanism), the supporting plates 5 are enabled to rotate close to the conveying surface of the chain type conveying mechanism 1 under the action of gravity of the packaging bags, and the limiting rotating piece 7 is used for enabling the supporting plates 5 for supporting the packaging bags to rotate along the conveying direction of the chain type conveying mechanism 2 to be connected into a supporting plane and limiting the sliding of the packaging bags through the supporting plates 5 which are adjacent to the supporting plane and located below the supporting plane and not in contact with the packaging bags. After the wrapping bag is placed on chain conveyor 1, backup pad 5 that supports the wrapping bag rotates to being parallel with chain conveyor 1's conveying plane because of the gravity that receives the wrapping bag, thereby make 5 formation support plane increase wrapping bag of backup pad of a plurality of support wrapping bags and the area of contact of backup pad, certain anti-skidding effect has, the backup pad 5 that lies in the wrapping bag below simultaneously does not contact the wrapping bag and is the spacing cardboard that the tilt state formed restriction wrapping bag gliding, thereby effectively prevent the wrapping bag gliding at the in-process of transportation, the loading is lifted off the wrapping bag by the staff in the car after the wrapping bag is carried to the top, the backup pad 5 that supports the wrapping bag this moment restores to the normal position under the effect of torsional spring 6, make chain conveyor 1 can last stable carry the wrapping bag, improve food package's loading efficiency.

Further, referring to fig. 3 and 4, the limiting rotary member 7 includes an outer casing 8 and a circular inner casing 9, the outer casing 8 is fixedly disposed on the chain transmission mechanism 2, a circular groove 10 is formed on the outer casing 8, the circular inner casing 9 is disposed in the circular groove 10, a rotary space is formed between an outer wall of the circular inner casing 9 and an inner wall of the outer casing 8, a plurality of balls 11 are slidably disposed in the rotary space, an annular groove is formed on the inner wall of the outer casing 8, the balls 11 slide in the annular groove and contact with an outer wall of the circular inner casing 9, a through hole 12 is formed in the circular inner casing 9, the support shaft 4 is inserted in the through hole 12 and fixedly connected with the circular inner casing 9, an arc-shaped groove 13 is formed in the circular inner casing 9, a limiting rod 14 is slidably disposed in the arc-shaped groove 13, the limiting rod 14 is detachably connected with the outer casing 8, and when the torsion spring 6 is in a normal state, the end part of the arc-shaped groove 13 close to the conveying direction of the chain transmission mechanism 2 is propped against the limiting rod 14. The outer shell 8 and the circular inner shell 9 can rotate relatively, the outer shell 8 is fixed on the chain transmission mechanism 2, so that the circular inner shell 9 can rotate relatively to the outer shell 8, the rotation range of the circular inner shell 9 is limited through the matching of the arc-shaped groove 13 and the limiting rod 14, one end inside the arc-shaped groove 13 is propped against the limiting rod 14 under the action of the torsion spring 6, so that the circular inner shell 9 can only rotate towards one direction, i.e. downwards along the conveying direction of the chain transmission mechanism 2, when the supporting plate 5 rotates to be parallel to the conveying plane of the chain type conveying mechanism 1, the limiting rod 14 is abutted against the other end inside the arc-shaped groove 13, at the moment, the circular inner shell 9 cannot rotate continuously, so that the supporting plate 5 cannot rotate continuously after rotating to be parallel to the conveying plane, further, the plurality of supporting plates 5 form a supporting plane parallel to the conveying plane, and the packaging bags are supported by the supporting plane to be conveyed upwards; during specific implementation, the circular inner shell 9 and the through hole 12 are concentrically arranged, the supporting shaft 4 can be connected with the circular inner shell 9 through a flat key, the arc-shaped groove 13 and the circular inner shell 9 are concentrically arranged, so that the arc-shaped groove 13 and the circular inner shell 9 form a fan-shaped angle equal to the rotating angle of the supporting plate 5, the supporting plate 5 and the limiting rotating piece 7 are conveniently installed in a matched mode, the angle formed by the supporting plate 5 and the conveying direction of the chain transmission mechanism is equal to the fan-shaped angle formed by the arc-shaped groove 13, and the supporting plate 5 is ensured not to continuously rotate after being rotated to be parallel to a conveying plane; the utility model discloses a spacing inner shell 9 is installed in circular groove 10 earlier, thereby make and have a great rotation space of interval between circular inner shell 9 and the shell body 8, be convenient for install ball 11 between circular inner shell 9 and shell body 8 through this rotation space, then remove ball 11, make a plurality of rollers 11 evenly arrange in rotation space, thereby make circular inner shell 9 and the concentric setting of shell body 8, pass arc 13 threaded connection on shell body 8 with locating part 14 this moment again, realize the spacing rotation of circular inner shell 9, can not influence the equipment of spacing rotating member 7 simultaneously.

In the second embodiment, as shown in fig. 1, fig. 2, fig. 7 and fig. 8, the chain transmission mechanism 2 includes a driving sprocket 19 and a driven sprocket 20, the driven sprocket 20 is in transmission connection with the driving sprocket 19 through an endless chain 21, the chain transmission mechanism 1 further includes a driving shaft 15, a driven shaft 16 and two conveying plates 17, the two conveying plates 17 are arranged in parallel, the driving shaft 15 and the driven shaft 16 are both located between the two conveying plates 17, the driving shaft 15 is in rotational connection with the conveying plates 17, both ends of the driven shaft 16 are in rotational connection with sliding mechanisms 18, the sliding mechanisms 18 are in sliding connection with the conveying plates 17, the driving sprocket 19 is fixedly sleeved on the driving shaft 15, the driven sprocket 20 is fixedly sleeved on the driven shaft 16, the driving shaft 15 is connected with a driving mechanism, the driving shaft 15 drives the driving shaft 15 to rotate, the driving shaft 15 drives the two driving sprockets 19 thereon to rotate, the driving sprocket 19 drives the driven sprocket 20 to rotate through the endless chain 21, thereby forming a chain conveyor belt, and the two groups of chain transmission mechanisms 2 can be driven to act simultaneously through the driving shaft 15, so that the two groups of chain transmission mechanisms 2 run synchronously, the arrangement of driving mechanisms is reduced, and the cost is reduced; referring to fig. 5 and 6, the sliding mechanism 18 includes a rectangular housing 22 and an inner ring 23, a sliding groove 26 is formed in the conveying plate 17 along the conveying direction of the chain transmission mechanism 2, the rectangular housing 22 is slidably disposed in the sliding groove 26, a circular through hole 24 is formed in the rectangular housing 22, the inner ring 23 is disposed in the circular through hole 24, a plurality of rollers 25 are slidably disposed between the inner wall of the rectangular housing 22 and the outer wall of the inner ring 23, a roller groove is formed in the outer wall of the inner ring 23, the rollers 25 are slidably disposed in the roller groove and contact with the inner wall of the rectangular housing 22, and the driven shaft 16 is fixedly connected with the inner ring 23; the annular chain 21 needs to support the packaging bag, so that the annular chain 21 can be bent downwards to form an arc surface under the influence of the gravity of the packaging bag, a supporting plane is difficult to form among the plurality of supporting plates 5, and the normal conveying of the packaging bag is influenced, therefore, the pre-tightening force required by the conveying of the annular chain 21 is provided by arranging the sliding mechanism 18, the annular chain 21 is ensured to be in a tensioning state, and the annular chain 21 cannot be bent downwards to form the arc surface when supporting the food packaging bag; the top of the conveying plate 17 is provided with a plurality of limiting through holes 27 along the conveying direction of the chain transmission mechanism 2, the limiting through holes 27 are communicated with the sliding grooves 26, the top of the rectangular shell 22 is provided with threaded holes 28, and a fastening bolt 29 penetrates through one of the limiting through holes 27 to be in threaded connection with the threaded hole 28 on the rectangular shell 22; the installation of the annular chain 21 is facilitated through the sliding mechanism 18, meanwhile, the annular chain 21 is facilitated to generate pretightening force, specifically, when the annular chain 21 needs to be installed or replaced, the fastening bolt 29 on the rectangular shell 22 is detached, the rectangular shell 22 can slide in the sliding groove 26, then the driven shaft 16 is moved close to the driving shaft 15, the sliding mechanisms 18 at the two ends are driven by the driven shaft 16 to move in the sliding groove 26, so that the distance between the driving shaft 15 and the driven shaft 16 is reduced, the annular chain 21 can be easily installed on the driving chain wheel 19 and the driven chain wheel 20, then the driven shaft 16 is moved away from the driving shaft 15 again, the annular chain 21 is in a tensioning state, and finally the rectangular shell 22 is locked on the conveying plate 17 through the fastening bolt 29; the inner ring 23 and the rectangular shell 22 can rotate relatively, and the rectangular shell 22 is rectangular, so that after the rectangular shell 22 is matched with the sliding groove 26, the rotational freedom degree of the rectangular shell 22 is limited, and then the rectangular shell 22 is limited to move in the sliding groove 26 through the fastening bolt 29, so that the inner ring 23 rotates in the rectangular shell 22 alone, and the driven shaft 16 can rotate normally; the driven shaft 16 can rotate through the sliding mechanism 18 to ensure normal transmission of the annular chain 21, the distance between the driven shaft 16 and the driving shaft 15 can be adjusted by sliding on the conveying plate 17, the distance between the driven shaft 16 and the driving shaft 15 is reduced, installation of the annular chain 21 is facilitated, the distance between the driven shaft 16 and the driving shaft 15 is increased after installation is completed, and the annular chain 21 generates pretightening force to perform stable conveying.

In the third embodiment, as shown in fig. 1 and 9, the device further includes a moving bottom frame 31, the chain type conveying mechanism 1 is obliquely arranged on the moving bottom frame 31, the height of the input end of the chain type conveying mechanism 1 is lower than that of the output end, the side walls of the conveying plates 17 are hinged to the inner side wall of the moving bottom frame 31 through pin shafts, the bottoms of the two conveying plates 17 are connected through a connecting rod 32, an air cylinder 33 is hinged to the moving bottom frame 31, and the telescopic shaft of the air cylinder 33 is hinged to the connecting rod 32; the universal wheels are arranged at the bottom of the moving bottom frame 31, so that the moving bottom frame 31 can drive the chain type conveying mechanism to move conveniently, the inclination angle of the chain type conveying mechanism 1 can be adjusted through the air cylinder 33, various loading heights can be adapted, and meanwhile, after the chain type conveying mechanism 1 is used, the air cylinder 33 drives the chain type conveying mechanism 1 to rotate close to the moving bottom frame 31, so that the chain type conveying mechanism 1 is stored on the moving bottom frame 31 by reducing the height of the chain type conveying mechanism 1, the moving is convenient, and the storage space is reduced; a driving space is formed between the conveying plate 17 and the chain transmission mechanism 2, a first driven belt pulley 30 is fixed on the driving shaft 15, the first driven belt pulley 30 is positioned in the driving space, a motor 34 is arranged on the movable bottom frame 31, a driving belt pulley 35 is fixedly arranged on an output shaft of the motor 34, and the driving belt pulley 35 is in transmission connection with the first driven belt pulley 30 through a transmission belt 36; the motor 34 drives the driving pulley 35 and the first driven pulley 30 to rotate through the driving belt 36, so as to drive the driving shaft 15 to rotate, and further to enable the two groups of chain transmission mechanisms 2 to operate; the side wall of the moving bottom frame 31 is provided with a tensioning sliding chute 37, a tensioning mechanism is arranged in the tensioning sliding chute 37 in a sliding manner, the tensioning mechanism comprises a moving base 38 and a second driven belt pulley 39, the moving base 38 is arranged in the tensioning sliding chute 37 in a sliding manner, the moving base 38 is provided with the second driven belt pulley 39 in a rotating manner, the second driven belt pulley 39 is positioned between the driving belt pulley 35 and the first driven belt pulley 30, the second driven belt pulley 39 is in transmission connection with the driving belt 36, a spring 40 is arranged in the tensioning sliding chute 37, two ends of the spring 40 are respectively connected with the moving bottom frame 31 and the moving base 38, and the spring 40 is in a stretching state and is used for driving the moving base 38 to move away from the driving shaft 15 so as to enable the driving belt 36 to generate a tensioning force. The inclination angle of the chain conveyor 1 can be adjusted by the air cylinder 33, but when the inclination angle of the chain conveyor 1 is changed, the positional relationship between the driving pulley 35 and the first driven pulley 30 is changed, thereby causing the transmission belt 36 to be loosened, affecting the normal transmission of the transmission belt 36, the spring 40 is in a stretching state, the movable base 38 has a moving tendency to move away from the driving pulley 35, when the distance between the driving pulley 35 and the first driven pulley 30 increases, the driving belt 36 is under continuous tension, and the spring 40 is continuously stretched by the driving belt 36, so that the movable base 38 moves close to the driving pulley 35, the second driven pulley 39 is moved close to the driving pulley 35, so that the situation that the transmission belt 36 is broken or torn is avoided, and the transmission belt 36 is in a tensioning state under the action of the spring 40; when the distance between the driving pulley 35 and the first driven pulley 30 is reduced, the driving belt 35 is loosened, the movable base 38 is driven to move away from the driving pulley 35 under the reaction force of the spring 40, the second driven pulley 39 is further driven to move away from the driving pulley 35, the driving belt 36 is in a tensioning state, normal transmission of the driving belt 36 is guaranteed, the conveying belt 36 is always in a tensioning state through the second driven pulley 39 moving in a self-adaptive mode, it is guaranteed that the motor 34 can still drive the driving shaft 15 to rotate through the driving belt 36 when the angle of the chain type conveying mechanism 1 is changed, and the chain type conveying mechanism 1 is further driven to run to convey packaging bags.

In summary, the specific working process of the three-position limiting conveying device combining the first embodiment, the second embodiment and the third embodiment is as follows: remove spacing formula conveyor to the loading position, the cylinder extension drives chain conveyor 1 and rises, can be according to boxcar's highly select suitable transport height, then pneumatic motor 34 makes chain conveyor operate, a staff places the food package bag at chain conveyor 1's input, carry the wrapping bag through chain conveyor 1, another staff stands in the carriage, the food package bag that will carry to the carriage lifts off and stacks in the carriage, the food package bag carries the completion back, cylinder 34 makes chain conveyor 1 descend and accomodate to removing in underframe 31, thereby accomplish whole food transportation process.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The limiting type conveying device for the food packaging bag is characterized by comprising a chain type conveying mechanism (1) which is obliquely arranged, wherein the chain type conveying mechanism (1) comprises two groups of chain transmission mechanisms (2) which are arranged in parallel, a plurality of rotary supporting devices (3) are arranged between the two groups of chain transmission mechanisms (2), and the rotary supporting devices (3) are uniformly arranged along the conveying direction of the chain transmission mechanisms (2);

rotatory strutting arrangement (3) are including back shaft (4) and backup pad (5), the one end of back shaft (4) is passed through torsional spring (6) and one of them chain drive (2) are connected, the other end of back shaft (4) passes through spacing rotating member (7) and another chain drive (2) are connected, backup pad (5) fixed cover is established on back shaft (4), backup pad (5) with the direction of transfer of chain drive (2) is the acute angle setting, spacing rotating member (7) are used for making a plurality of backup pads (5) of support wrapping bag rotate along the direction of transfer of chain drive (2) and connect into the support plane and through adjacent and backup pad (5) the contactless wrapping bag that is located the support plane below with the support plane and restrict the slip of wrapping bag.

2. The limiting type conveying device for the food packaging bag according to claim 1, wherein the limiting rotating member (7) comprises an outer shell (8) and a circular inner shell (9), the outer shell (8) is fixedly arranged on the chain transmission mechanism (2), a circular groove (10) is formed in the outer shell (8), the circular inner shell (9) is arranged in the circular groove (10), a rotating space is formed between the outer wall of the circular inner shell (9) and the inner wall of the outer shell (8), a plurality of balls (11) are slidably arranged in the rotating space, a through hole (12) is formed in the circular inner shell (9), the supporting shaft (4) penetrates through the through hole (12) and is fixedly connected with the circular inner shell (9), an arc-shaped groove (13) is formed in the circular inner shell (9) in a penetrating manner, and a limiting rod (14) is slidably arranged in the arc-shaped groove (13), the limiting rod (14) is detachably connected with the outer shell (8).

3. The limiting type conveying device for the food packaging bags according to claim 2 is characterized in that when the torsion spring (6) is in a normal state, the end part, close to the conveying direction of the chain transmission mechanism (2), of the arc-shaped groove (13) is abutted against the limiting rod (14).

4. The limiting type conveying device for the food packaging bags according to claim 3, characterized in that the chain transmission mechanism (2) comprises a driving chain wheel (19) and a driven chain wheel (20) which are rotatably arranged, and the driven chain wheel (20) is in transmission connection with the driving chain wheel (19) through an annular chain (21).

5. The limiting type conveying device for the food packaging bags according to claim 4, wherein the chain type conveying mechanism (1) further comprises a driving shaft (15), a driven shaft (16) and two conveying plates (17), the two conveying plates (17) are arranged in parallel, the driving shaft (15) and the driven shaft (16) are located between the two conveying plates (17), the driving shaft (15) is rotatably connected with the conveying plates (17), two ends of the driven shaft (16) are rotatably connected with sliding mechanisms (18), the sliding mechanisms (18) are slidably connected with the conveying plates (17), the driving sprocket (19) is fixedly sleeved on the driving shaft (15), and the driven sprocket (20) is fixedly sleeved on the driven shaft (16).

6. The limiting type conveying device for the food packaging bags according to claim 5, wherein the sliding mechanism (18) comprises a rectangular casing (22) and an inner ring (23), a sliding groove (26) is formed in the conveying plate (17) along the conveying direction of the chain transmission mechanism (2), the rectangular casing (22) is slidably arranged in the sliding groove (26), a circular through hole (24) is formed in the rectangular casing (22), the inner ring (23) is arranged in the circular through hole (24), a plurality of rollers (25) are slidably arranged between the inner wall of the rectangular casing (22) and the outer wall of the inner ring (23), and the driven shaft (16) is fixedly connected with the inner ring (23).

7. The limiting type conveying device for the food packaging bags according to claim 6 is characterized in that a plurality of limiting through holes (27) are formed in the top of the conveying plate (17) along the conveying direction of the chain transmission mechanism (2), the limiting through holes (27) are communicated with the sliding grooves (26), threaded holes (28) are formed in the top of the rectangular shell (22), and a fastening bolt (29) penetrates through one of the limiting through holes (27) to be in threaded connection with the threaded holes (28) in the rectangular shell (22).

8. The limiting type conveying device for the food packaging bag is characterized by further comprising a moving bottom frame (31), the chain type conveying mechanism (1) is obliquely arranged on the moving bottom frame (31), the input end height of the chain type conveying mechanism (1) is lower than the output end height, the side wall of each conveying plate (17) is hinged to the inner side wall of the moving bottom frame (31) through a pin shaft, the bottoms of the two conveying plates (17) are connected through a connecting rod (32), an air cylinder (33) is hinged to the moving bottom frame (31), and the telescopic shaft of the air cylinder (33) is hinged to the connecting rod (32).

9. The limiting type conveying device for the food packaging bags according to claim 8, wherein a driving space is formed between the conveying plate (17) and the chain transmission mechanism (2), a first driven pulley (30) is fixed on the driving shaft (15), the first driven pulley (30) is located in the driving space, a motor (34) is arranged on the movable bottom frame (31), a driving pulley (35) is fixedly arranged on an output shaft of the motor (34), and the driving pulley (35) is in transmission connection with the first driven pulley (30) through a transmission belt (36).

10. The limiting type conveying device for the food packaging bag according to claim 9, wherein a tensioning sliding groove (37) is formed in a side wall of the moving bottom frame (31), a tensioning mechanism is slidably arranged in the tensioning sliding groove (37), the tensioning mechanism comprises a moving base (38) and a second driven pulley (39), the moving base (38) is slidably arranged in the tensioning sliding groove (37), a second driven pulley (39) is rotatably arranged on the moving base (38), the second driven pulley (39) is located between the driving pulley (35) and the first driven pulley (30), the second driven pulley (39) is in transmission connection with the driving belt (36), a spring (40) is arranged in the tensioning sliding groove (37), and two ends of the spring (40) are respectively connected with the moving bottom frame (31) and the moving base (38), the spring (40) is in a stretching state and is used for driving the movable base (38) to move away from the driving shaft (15) so as to enable the driving belt (36) to generate a tensioning force.