CN109264440B - Box sorting and conveying device and box stacking system - Google Patents

Abstract

The invention relates to a box sorting and conveying device, which comprises a conveying belt, a branch conveying belt connected to the conveying belt, a line turning mechanism arranged at the joint of the conveying belt and the branch conveying belt, and a box overturning device arranged on the conveying belt or the branch conveying belt; the wire rotating mechanism comprises a steering wheel, an unpowered roller is arranged on the steering wheel, a steering mechanism capable of steering the roller is arranged above the steering wheel, and the steering mechanism comprises a rotating shaft, a sheave mechanism arranged at the bottom of the rotating shaft, a deflector rod arranged at the top of the rotating shaft and a rack arranged on the steering wheel. The box body sorting and conveying device, the line rotating mechanism and the box body stacking system can automatically and uniformly adjust the direction of box bodies in different placing directions, reduce the labor intensity and improve the efficiency.

Description

Box letter sorting conveyor and box pile up neatly system

Technical Field

The invention relates to the field of conveying belts.

Background

With the development of economic level, the labor cost in production is continuously increased, and more enterprises face the common phenomena of rapid increase of production cost and lack of labor force. The loading work, especially the loading of the container, is a work kind with high labor intensity, low technical content, first wage treatment, bad working environment and large personnel mobility, and is very difficult to recruit and manage.

At present, the logistics industry, no matter the link of storage or transportation, all reaches higher automation level, and the only thing is the loading link still generally adopts the manual work to put things in good order in the carriage.

In the prior art, box goods are arranged in a box truck, the box goods are manually placed at the outer end of a conveying belt, and the conveying belt is transmitted to a stacking device in a carriage. The box is generally put with erectting to put the height different, leads to transmitting the placing methods of pile up neatly device back box different, and unable automatic pile up neatly needs the workman to get up the direction of putting of box in unison, has increased intensity of labour.

Disclosure of Invention

The invention aims to provide a box body sorting and conveying device capable of automatically and uniformly adjusting the directions of box bodies in different placing directions, a line rotating mechanism on the conveying line and a box body stacking system using the conveying line.

In order to solve the technical problem, the box body sorting and conveying device comprises a conveying belt, a branch conveying belt connected to the conveying belt, a line transferring mechanism arranged at the joint of the conveying belt and the branch conveying belt, and a box body overturning device arranged on the conveying belt or the branch conveying belt; the line turning mechanism comprises a steering wheel, an unpowered roller is arranged on the steering wheel, a steering mechanism capable of steering the roller is arranged above the steering wheel, the steering mechanism comprises a rotating shaft, a sheave mechanism arranged at the bottom of the rotating shaft, a deflector rod arranged at the top of the rotating shaft and a rack arranged on the steering wheel, the racks are connected into a whole through a connecting rod, the rack can slide along the steering wheel, the roller is matched with the rack in position, the roller is arranged on the steering wheel through a bearing, the roller comprises a wheel body, a wheel disc and a transverse shaft, gear teeth are arranged on the outer side of the wheel disc, the gear teeth matched with the rack are arranged on the side surface of the bottom of the wheel disc, the wheel disc can freely rotate around the vertical shaft of the wheel disc, and the wheel disc is a thrust bearing; the geneva mechanism is arranged at the bottom of the rotating shaft, the height of the geneva mechanism is the same as that of the rack, the geneva mechanism comprises a driving drive plate fixedly connected with the rotating shaft and a driven geneva wheel matched with the driving drive plate, the driving drive plate is arranged at the bottom of the rotating shaft and is concentric with the rotating shaft, a gear meshed with the rack is arranged on the driven geneva wheel, the deflector rod is perpendicular to the rotating shaft, and a return spring is arranged on the driving drive plate or the rotating shaft.

The box body overturning device comprises an uphill section, a platform section and a downhill section, and the downhill section is provided with an overturning baffle.

The box turning device comprises an opening formed in a conveying belt, two supporting plates are fixedly arranged below the opening, a guide rod is arranged between the two supporting plates, a sliding block is installed on the guide rod, a cylinder is arranged between the guide rods, one end of the cylinder is connected with the sliding block, the other end of the cylinder is connected with a first supporting plate, an L-shaped turning plate is connected onto the sliding block, a hinged plate is installed at the bottom of one side of the L-shaped turning plate, one end of the hinged plate is hinged onto the sliding block, the other end of the hinged plate is connected with a second supporting plate through a connecting rod, one end of the connecting rod is hinged with the L-shaped turning plate, the other end of the connecting rod is hinged with the second supporting plate, and a trigger device is arranged on the L-shaped turning plate.

The turnover baffle is a rectangular twisted flat plate, the upper end of the rectangular flat plate is connected with the initial section of the downhill section, the turnover baffle is flatly attached to the lower edge of the platform section, the end of the downhill section is provided with the lower end of the rectangular flat plate, and the middle part of the turnover baffle is twisted so that the rectangular turnover baffle is slowly transited to be upright from flat attachment relative to the plane of the conveying belt.

The inner side of the rectangular flat plate is provided with a roller capable of rotating freely, and the roller is gradually transited from flat pasting to vertical pasting.

The invention also discloses a box body stacking system which comprises a control system, a loading platform, a conveying belt and a stacking device connected with the conveying belt, wherein a branch conveying belt is arranged beside the conveying belt, a box body sorting and conveying device is arranged at the joint of the conveying belt and the branch conveying belt, the box body sorting and conveying device comprises a wire rotating mechanism arranged at the joint of the conveying belt and the branch conveying belt and a box body overturning device arranged on the conveying belt or the branch conveying belt, the wire rotating mechanism comprises a steering wheel, an unpowered roller is arranged on the steering wheel, a steering mechanism capable of steering the roller is arranged above the steering wheel, the steering mechanism comprises a rotating shaft, a sheave mechanism arranged at the bottom of the rotating shaft, a deflector rod arranged at the top of the rotating shaft and a rack arranged on the steering wheel, the racks are connected into a whole through a connecting rod, the rack can slide along the steering wheel, the roller is matched with the rack in position, the roller is arranged on the steering wheel through a bearing, the roller comprises a wheel body, a wheel disc and a transverse shaft, gear teeth are arranged on the outer side of the wheel disc, gear teeth matched with the bottom of the wheel disc, the gear teeth matched with the rack, the vertical shaft, the wheel disc can freely rotate around the vertical shaft, and the wheel disc is a thrust bearing; the sheave mechanism is arranged at the bottom of the rotating shaft, the height of the sheave mechanism is the same as that of the rack, the sheave mechanism comprises a driving drive plate fixedly connected with the rotating shaft and a driven sheave matched with the driving drive plate, the driving drive plate is arranged at the bottom of the rotating shaft and concentric with the rotating shaft, a gear meshed with the rack is arranged on the driven sheave, a driving lever is perpendicular to the rotating shaft, a return spring is arranged on the driving drive plate or the rotating shaft, the box turnover device comprises an opening arranged on the conveying belt, two support plates are fixedly arranged below the opening, a guide rod is arranged between the two support plates, a slide block is arranged on the guide rod, an air cylinder is arranged between the guide rods, one end of the air cylinder is connected with the slide block, the other end of the air cylinder is connected with a first support plate, an L-shaped turnover plate is connected onto the slide block, a hinged plate is arranged at the bottom of one side of the L-shaped turnover plate, one end of the hinged plate is hinged on the slide block, the other end of the connecting rod is connected with a second support plate, and a trigger device is arranged on the L-shaped turnover plate.

The box body sorting and conveying device, the line rotating mechanism and the box body stacking system can automatically and uniformly adjust the direction of box bodies in different placing directions, reduce the labor intensity and improve the efficiency.

Drawings

The invention is described in further detail below with reference to the drawings and the detailed description.

Fig. 1 is a schematic structural diagram of a container efficient box body stacking system.

Fig. 2 is a schematic view of a conventional palletizer.

Fig. 3 is a top view of a first embodiment of a wire turning mechanism.

Fig. 4 is a top view of a first embodiment of a wire turning mechanism.

Figure 5 is a side cross-sectional view of a first embodiment of the wire-turning mechanism.

Fig. 6 is a top view of a second embodiment of a wire turning mechanism.

Fig. 7 is an operation state diagram of the second embodiment of the wire rotating mechanism.

Fig. 8 is a schematic structural view of the steering wheel.

Fig. 9 is an operation state diagram of the steering wheel.

Fig. 10 is a side view of a second embodiment of a wire turning mechanism.

Fig. 11 is an operation state diagram of the second embodiment of the wire rotating mechanism.

Fig. 12 is a partially enlarged view of a portion a in fig. 8.

Fig. 13 is a partially enlarged view of a portion B in fig. 9.

Fig. 14 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 12.

Figure 15 is a side cross-sectional view of the first embodiment of the flipping unit.

Fig. 16 is a top view of a first embodiment of the flipping unit.

Fig. 17 is a perspective view of the first embodiment of the turnover device.

Fig. 18 is a top view of a triangular inversion baffle.

Fig. 19 is a perspective view of a second embodiment of the flipping unit.

Fig. 20 is a top view of a second embodiment of the flipping unit.

Figure 21 is a side cross-sectional view of a second embodiment of the flipping unit.

Fig. 22 is an operation state diagram of the second embodiment of the turnover device.

Fig. 23 is an operation state diagram of the second embodiment of the turnover device.

Fig. 24 is a schematic structural view of the box transfer device.

Fig. 25 is a schematic structural view of the box merging device.

Fig. 26 is an operation state diagram of the box merging device.

Fig. 27 is an operation state diagram of the box merging device.

Fig. 28 is a partially enlarged view of a portion C in fig. 25.

Fig. 29 is a partially enlarged view of a portion D in fig. 27.

Fig. 30 is a partially enlarged view of a portion E in fig. 25.

Fig. 31 is a partially enlarged view of a portion F in fig. 29.

Fig. 32 is a partially enlarged view of a portion G in fig. 28.

Fig. 33 is a schematic structural view of the case stacking apparatus.

FIG. 34 is a schematic view showing the operation of the case stacking apparatus.

FIG. 35 is a schematic view showing the operation of the case stacking apparatus.

Fig. 36 is a schematic view showing the operation of the case stacking apparatus.

Fig. 37 is a side view of the case stacking apparatus.

Detailed Description

The box body sorting and conveying device is a device of a box body stacking system, the line rotating mechanism is a component of the box body sorting and conveying device, and the box body stacking system uses the box body sorting and conveying device.

As shown in fig. 1, the automatic loading system for boxes comprises a control system, a loading platform 1, a conveyor belt 3 and a stacking device 4 connected with the conveyor belt 3. The conveying belt 3 is provided with a box body merging device.

The conveying belt is provided with a sorting device, and the sorting device can separate and turn over the transversely placed boxes and the vertically placed boxes so that the transversely placed boxes and the vertically placed boxes are placed uniformly; a box body combining device is arranged behind the sorting device on the conveying belt, and two adjacent box bodies on the conveying belt are combined together; a box body stacking device is arranged behind the conveyor belt after the conveyor belt is combined and assembled, and the two combined box bodies are stacked up and down; a buffer platform is arranged at the joint of the conveying belt and the platform, and the box body conveyed from the conveying belt 3 is firstly placed on the buffer platform and then pushed to the platform from the buffer platform.

Because the box that needs to be piled up neatly when just putting conveyer belt 3 on, probably by horizontal, also probably by erectting, the pile up neatly device can't put the different boxes of putting horizontally and erectting in unison in good order automatically, need set up one set of box automatic sorting device, place the direction with the box unified. The method is that a branch conveyor belt 20 is arranged beside the conveyor belt, boxes in different directions are turned to the branch, and then the boxes on the branch or the main conveyor belt are turned over through a box turning mechanism.

As shown in fig. 3, the conveyor belt 3 and the branch conveyor belt 2 are roller beds, and are composed of continuously arranged rollers 21, the length of the roller 21 at the joint of the branch conveyor belt 20 and the conveyor belt 3 is gradually changed, and the joint of the conveyor belt 3 and the branch conveyor belt 20 is provided with a line-turning mechanism 22.

In one embodiment, as shown in fig. 3 and 5, the wire rotating mechanism 22 includes a universal disk 23, a non-powered universal ball 24 is disposed on the universal disk 23, as shown in fig. 4 and 5, a wiping roller frame 25 is disposed above the universal disk 23, a plurality of friction rollers 26 are disposed on the friction roller frame 25, the rotating direction of the friction rollers 26 matches the conveying direction of the branch conveyor 20, and the height of the lower edge of the friction rollers 26 matches the height of the vertical box 28. The conveying belt 3 is randomly conveyed to the transverse box body 27 or the vertical box body 28, and when the conveying belt reaches the wire rotating mechanism 22, the transverse box body 27 continues to convey forwards along the original direction of the conveying belt; the vertical box 28 is high, the top of the vertical box is contacted with the friction roller 26, the friction surface of the friction roller 26 can be made of elastic material, and the top of the vertical box 28 and the friction surface of the friction roller generate pressure to receive the friction force of the friction roller 26, thereby changing the direction.

In another embodiment, as shown in fig. 6 and 7, the wire turning mechanism 22 comprises a steering wheel 32, as shown in fig. 8 and 9, 3 rows of unpowered rollers 33 are arranged on the steering wheel 32, and a steering mechanism capable of steering the rollers 33 is arranged above the steering wheel 32. As shown in fig. 10 to 13, the steering mechanism includes a rotating shaft 29, a geneva mechanism 30 installed at the bottom of the rotating shaft 29, a lever 31 installed at the top of the rotating shaft 29, and a rack 34 installed on a steering wheel 32, where the rack 34 is provided with 3 rows, the 3 rows of racks are connected into a whole by a connecting rod 37, the rack 34 can slide along the steering wheel 32, the 3 rows of rollers 33 and the 3 rows of racks 34 are matched in position, and the rollers 33 can be installed on the steering wheel 32 through bearings, as shown in fig. 14, each roller 33 includes a wheel body 331, a wheel disc 332, a transverse shaft 334, gear teeth 335 are provided on the outer side of the wheel disc 332, gear teeth 335 matched with the rack 34 are provided on the bottom side of the wheel 332, the wheel 332 can freely rotate around its vertical shaft, the wheel 332 can be a thrust bearing, that is, a ball 336 or a cylinder is provided on the bottom of the wheel 332, so that the wheel 332 can freely rotate on the steering wheel 32.

The geneva gear 30 is arranged at the bottom of the rotating shaft 29 and has the same height as the rack 34, as shown in fig. 12, the geneva gear 30 comprises a driving dial 301 fixedly connected with the rotating shaft 29 and a driven geneva gear 302 matched with the driving dial 301, the driving dial 301 is arranged at the bottom of the rotating shaft 29 and is concentric with the rotating shaft 29, the driven geneva gear 302 can be arranged through a bearing, a gear meshed with the rack 34 is arranged on the driven geneva gear 302, and the deflector rod 31 is perpendicular to the rotating shaft 29. As shown in FIG. 11, the horizontal box 27 or the vertical box 28 is randomly transmitted from the conveyer 3, the deflector rod 31 is lower than the vertical box 28 and higher than the horizontal box 27, the rotating shaft 29 is arranged at the side of the conveyer 3, and the deflector rod 31 extends towards the middle of the conveyer 3. When the box body reaches the wire rotating mechanism 22, the height of the vertical box body 28 is higher, the top of the vertical box body contacts the shifting rod 31, the shifting rod 31 is pushed away towards the side edge of the conveying belt 3, the rotating shaft 29 is driven to rotate by an angle which is generally larger than 30 degrees, as shown in fig. 13, the rotating shaft 29 drives the driving dial 301 at the bottom of the vertical box body to rotate by the same angle, the locking arc 3011 on the driving dial 301 is matched with the concave locking arc 3021 on the driven sheave 302, when the cylindrical pin 3012 enters the radial groove 3022, the driven sheave 302 starts to rotate, the rotating angle of the driven sheave 302 in the whole process is a determined smaller angle, and through adjustment, the gear on the driven dial 302 drives the rack 34 to move by a proper stroke, so that the roller 33 rotates by a certain angle, all the rollers 33 on the steering wheel 32 point to the direction of the branch conveying belt 20, so that the vertical box body 28 turns when moving to the steering wheel 32, and the vertical box body 28 turns to the branch conveying belt 20 on the wire rotating mechanism 22. A return spring is arranged on the driving dial 301 or the rotating shaft 29, and after the vertical box 28 passes through the wire rotating mechanism 22, the shift lever 31 returns to drive all the rollers 33 on the steering wheel 32 to return to wait for the next box. The horizontal box 27 is not high enough to touch the shift lever 31, and the horizontal box 27 and the vertical box 28 are conveyed forward continuously along the original direction of the main conveyor belt 3, so that the horizontal box 27 and the vertical box 28 are separated to different conveyor belts.

After the transverse box 27 and the vertical box 28 have been separated on different conveyor belts, a box turnover device is provided on the conveyor belt 3 or the bypass conveyor belt 20.

In the first case, the box turnover device is arranged on the conveyor belt 3. As shown in fig. 15 to 17, an ascending section 38, a platform section 39 and a descending section 40 are arranged on the conveyor belt 3 behind the wire-turning mechanism 22, the transverse box body 27 is lifted along the ascending section 38 and then slides down along the descending section 40, the descending section 40 is provided with a triangular turning baffle 41, the transverse box body 27 moves to the initial position of the descending section 40, one side meets the top end of the triangular turning baffle 41, the side of the transverse box body 27 is slowly lifted along with sliding down, the triangular turning baffle 41 is higher and higher, and the side is higher and higher until the tail end of the descending section 40 is completely turned over and becomes vertical.

In order to make the box body turn more smoothly and prevent the box body package from being damaged by the turn-over damper 41, some improvements are made to the turn-over damper 41. As shown in fig. 18, the inversion flap 41 may be a rectangular twisted plate 41a instead of a triangular plate, where the upper end 411 of the rectangular plate is connected to the beginning of the down-slope section 40 and lies flat against the lower edge of the platform section 39, and at the end of the down-slope section 40, the lower end of the rectangular plate 41a is raised and the middle part is twisted so that the rectangular inversion flap transitions from flat to upright with respect to the plane of the conveyor belt. Further, rollers 44 are freely rotatable inside the rectangular plate 41a, and the rollers 44 gradually transition from flat to upright, so that the contact between the box body and the turnover baffle 41 causes less friction.

The conveyor belt 3 following the downhill segment 40 merges with the branch conveyor belt 20. As shown in fig. 16, the end of the branch conveyor 20 is provided with a pushing mechanism, which includes a pushing plate 42 and a cylinder 43 connected to the pushing plate 42. When the vertically-placed boxes along the branch conveyor belt 20 move to the end of the branch conveyor belt 20, the cylinder 20 is started to drive the push plate 42 to push the boxes back onto the main conveyor belt 3.

In another case, the box turnover device is disposed on the conveyor 3, as shown in fig. 20 to 24, an opening 45 is disposed on the conveyor 3 behind the wire-turning mechanism 22, two support plates 46 are fixedly disposed below the opening 45, two guide rods 47 are disposed between the two support plates, a slider 48 is mounted on each guide rod 47, an air cylinder 49 is disposed between the two guide rods 47, one end of the air cylinder 49 is connected to the slider 48, and the other end is connected to the first support plate 461. An L-shaped turnover plate 50 is connected to the sliding block 48, a hinged plate 51 is installed at the bottom of one side of the L-shaped turnover plate 50, one end of the hinged plate 51 is hinged to the sliding block 48, the other end of the hinged plate 51 is connected with a second supporting plate 462 through a connecting rod 52, one end of the connecting rod 52 is hinged to the L-shaped turnover plate, and the other end of the connecting rod 52 is hinged to the second supporting plate 462.

The L-shaped turnover plate 50 is provided with a trigger device, when the box body is transferred to the L-shaped turnover plate 50 along the conveyor belt 3, the cylinder 49 contracts, as shown in fig. 22, the sliding block 48 is driven to move, the L-shaped turnover plate 50 is driven to turn over for 90 degrees, and therefore the box body on the L-shaped turnover plate 50 is driven to turn over.

The conveyer belt 3 may further be provided with a box turning mechanism, as shown in fig. 24, the box turning mechanism may be an air cylinder or a stopper disposed at one side of the conveyer belt, and may block one corner of the box body to turn the box body by about 90 degrees, and then turn the box body by 90 degrees completely by the adjusting device. The box turnover device and the box rotating mechanism of the two embodiments are matched, the front and back sequence of the box turnover device and the box rotating device of the two embodiments is determined according to conditions, and the original randomly placed or horizontally placed box bodies can be selectively turned over and all changed into placed vertically or horizontally and stacked uniformly.

A box merging device is arranged above the conveying belt 3, as shown in fig. 25, the box merging device comprises two fixed shafts 53, two cross rods 54 respectively mounted on the two fixed shafts 53, two vertical rods 56 hinged to the cross rods 54, and a driving cylinder 55 hinged to the vertical rods, wherein the two vertical rods are respectively a left vertical rod 56a and a right vertical rod 56b, the left vertical rod 56a is hinged to a lever of the driving cylinder 55, the upper end of a cylinder barrel of the driving cylinder 55 is hinged to a fixed facility, the two cross rods 54 and the two vertical rods 56 form a parallelogram capable of rotating around the two fixed shafts 53, and the lower ends of the two vertical rods 56 are slightly longer.

The boxes on the conveyor belt 3 are conveyed to the left, the driving cylinder 55 reciprocates, and as shown in fig. 25, when the driving cylinder 55 is lifted upwards, the left vertical rod 56a is driven to move upwards, the right vertical rod 56b moves downwards, the right vertical rod 56b blocks the boxes 58, so that the blocked boxes 58 stop moving forwards, and the distance between the blocked boxes 58 and the rear boxes 59 is reduced. After a period of time, the driving cylinder 55 extends downwards, as shown in fig. 26 and 27, the left vertical rod 56a is driven to move downwards, meanwhile, the right vertical rod 56b moves upwards, the box body 58 blocked by the right vertical rod 56b continues to move forwards, and stops after meeting the left vertical rod 56a, and at the moment, the rear box body 59 is attached to the front box body 58. At this time, the driving cylinder 55 is lifted upwards to drive the left vertical rod 56a to move upwards, and the front box 58 and the rear box 59 which are attached together continue to move forwards. Therefore, the box bodies which are originally uniformly distributed are uniformly attached to each other two by two. The distance between the front box body and the rear box body can be better adjusted by arranging the two vertical rods which are alternately descended, compared with a structure with a stop rod which is descended in one period, the fault tolerance rate of the distance between the front box body and the rear box body is higher, and the condition that the distance between the front box body and the rear box body is longer and shorter can be adapted. The structure can stop the box body in two steps, and the impact on the box body is smaller.

The box body can be stopped suddenly when contacting the vertical rod 56, certain collision exists, and when the system conveys the box body filled with fragile articles, certain hidden danger exists.

A buffer device 60 is fixedly arranged at the bottom of the left vertical rod 56a and the right vertical rod 56b, as shown in fig. 28 to 31, the buffer device 60 comprises a sleeve 57 fixedly connected to the vertical rods, a spring 61 installed in the sleeve 57, and a buffer rod 62 connected with the spring 61, when the box body approaches, the buffer rod 62 is firstly contacted, as shown in fig. 28, the buffer rod 62 compresses the spring 61, and the strength of the spring 61 is enough to decelerate the box body, but the box body does not rebound. When the box contacted the montant, buffer beam 62 got into sleeve 58 completely, and the box also stop motion, and the baffle can be installed to the buffer beam outer end, and the box carries out the face contact with the baffle, and is more steady. As shown in fig. 32, a notch 63 is provided at an outer end of the buffer rod 62, a lock pin 64 is installed on the vertical rod 56, when the buffer rod 62 completely enters the sleeve 61, the notch 63 at an end of the buffer rod 62 is exactly aligned with the lock pin 64, the lock pin 64 is connected with a lock pin spring 65, the lock pin spring 65 is connected with a lifting rod 66, the lifting rod 66 is slidably installed on the vertical rod 56 and can slide up and down along the vertical rod 56, a rack 66a is provided at an upper end of the lifting rod 66, a lifting gear 67 is installed at a hinged position of the vertical rod 56 and the cross rod 54, the lifting gear 67 can synchronously rotate along with rotation of the cross rod, and the rack 66a is meshed with the lifting gear 67.

When the vertical rod 56 moves downward, as shown in fig. 25 and 28, the lifting gear 67 rotates to drive the lifting rod 66 to move downward, the lock pin 64 abuts against the buffer rod 62 under the action of the lock pin spring 65, and the buffer rod 62 extends out of the sleeve 57. When the box body contacts the buffer rod 62, the buffer rod 62 retracts into the sleeve 57, the notch 63 at the outer end moves to the position of the lock pin 64, and the lock pin 64 is inserted into the notch 63 to lock the buffer rod 62. The vertical rod 56 moves upwards as shown in fig. 27 and 29, meanwhile, the cross rod 54 drives the lifting gear 67 to rotate in the opposite direction, the lifting gear 67 drives the lifting rod 66 to move upwards, the moving amplitude of the lifting rod 66 is large enough to ensure that after the locking pin spring 65 extends, the locking pin 64 continues to move upwards, the notch 63 is pulled out, the buffer rod 62 extends out under the action of the spring 61, and the box body is buffered in the next period.

The damping devices 60 on the left and right vertical rods 56a, 56b are identical in structure, except that the lifting gear 67 is mounted in the opposite direction to the lifting rod 66, as shown in fig. 30.

After the buffer device 60 is arranged, the stacking system can transport fragile boxes, the operation speed of the system can be increased, and the boxes and objects in the boxes can be prevented from being broken.

Two liang of box merge, and one operation can pile up two side by side boxes simultaneously during the pile up neatly, only need with the relevant part of pile up neatly device do the adjustment on the size can. Also can stack adjacent two side by side boxes from top to bottom through stacking the device, and one-time operation can pile up two boxes that stack from top to bottom simultaneously during the pile up neatly, can improve the efficiency of pile up neatly.

As shown in fig. 33 to 37, the stacking device includes a frame fixedly disposed above the conveyor belt 3, the frame includes two i-shaped frames 68 respectively disposed at two sides of the conveyor belt 3, four driving gears 69 are mounted at four corners of the i-shaped frame at each side, an annular chain 70 is mounted on the four driving gears 69, the chain 70 forms a rectangle, two push rods 71 are symmetrically mounted between the chains 70 at two sides, the distance between the two push rods 71 on the annular chain 70 is equal, a servo motor 72 is mounted on the frame, the servo motor 72 drives a driving gear at one corner to rotate 691 through chain transmission, the driving gears 691 at two sides are connected through a connecting rod 73 to rotate synchronously, thereby driving the chains 70 to rotate around the frame, so that the two push rods 71 can rotate periodically.

The movement rhythm of the two push rods 71 is set to match the interval of the boxes, when the two boxes combined together move to the stacking device, the two boxes enter the lower part of the frame, at the moment, the first push rod 711 moves to the left side of the frame, as shown in fig. 33, rises along the left side of the frame, does not move in the horizontal direction, can block the boxes, the conveying belt below the stacking device is an unpowered conveying belt, and the front box 58 and the rear box 59 stop at the leftmost side of the frame.

The stacking device further comprises a lifting device arranged on the conveying belt 3, the lifting device is located below the stopped rear box body 59 and comprises a lifting air cylinder 74 arranged below the conveying belt 3, an unpowered movable roller table 75 is arranged above the lifting air cylinder 74, and the movable roller table 75 is arranged in an opening in the middle of the conveying belt 3. At this time, the lift cylinder 74 is raised to lift the rear box 59 stopped on the movable roller table 75 to the same height as the front box 58 as shown in fig. 34.

The frame is also provided with a small frame, the structure of the small frame is similar to that of the frame, two I-shaped frames 68 on two sides of the frame are provided with a small I-shaped frame 76, four small gears 77 are arranged on four corners of the small I-shaped frame 76, annular small chains 78 are arranged on the four small gears 77, the small chains 78 form a rectangle, small push rods 79 are symmetrically arranged between the small chains 78 on two sides, one small gear 77 is connected with a servo motor 72 and rotates under the driving of the servo motor to drive the small chains 78 and the small push rods 79 to move.

When the front box 58 and the rear box 59 reach the bottom of the frame, the first push rod 711 moves to the bottom of the frame, the lifting cylinder 74 ascends to jack the rear box 59 stopped on the movable roller table 75 to the same height as the front box 58, at this time, the rear box 59 is in the small frame, the outer diameter and the rotating speed of the pinion 77 and the position of the small push rod 79 are adjusted, so that when the rear box 59 reaches the small frame, the small push rod 79 just moves to the bottom of the small frame, the small push rod 79 continues to move leftwards to push the rear box 59 to move leftwards, and as shown in fig. 35, the rear box 59 is pressed on the front box 58. The first push rod 711 is now in front of the front box 58 and prevents the lower front box 58 from being pushed away by the friction generated by the forward movement of the rear box 59. As shown in FIG. 36, when the small push rod 79 pushes the rear case 59 completely to the upper side of the front case 58, the small push rod 79 starts to move upward along the chain to stop pushing the case, and the first push rod 711 also moves upward to the front of the rear case 59 to block the rear case 59 and prevent the rear case 59 from walking.

When the first push rod 711 and the small push rod 79 move upwards all the time and move backwards and right away from the rear box 59, and the second push rod 712 symmetrical to the first push rod 711 has moved to the bottom of the frame and moved leftwards, the second push rod 712 is also provided with two closely spaced rods, and the second push rod 712 contacts the lower front box 58 to push the front box 58 and the rear box 59 which are overlapped together to move forwards along the conveyor belt 3, leave the unpowered section of the conveyor belt and contact the powered conveyor belt 3, so as to continue to move forwards. The next two boxes along the belt also encounter the second push rod 712, decelerating, stopping forward as the second push rod 712 begins to move up the frame, and beginning the next cycle.

Because the movement of the push rod 71 has strict periodicity, the spacing distances of all the boxes of the stacking device are completely equal, the boxes are pushed to the front of the box stacking device in a timing and positioning mode, and accordingly box stacking can be better operated.

The stacked boxes are conveyed to a stacking device 4. As shown in fig. 2, the palletizing device 4 includes a walking platform 5 and four vertical columns 6 fixedly arranged on the walking platform 5, as shown in fig. 2, longitudinal rails 7 are fixedly arranged on the vertical columns 6, a lifting platform 8 capable of moving up and down along the longitudinal rails 7 is arranged on the longitudinal rails 7, a horizontal sliding rod 9 capable of sliding horizontally along the lifting platform is arranged on the lifting platform 8, the lifting platform 8 and the horizontal sliding rod 9 are connected with a driving device, a second vertical column 10 is fixedly arranged at the front end of the horizontal sliding rod 9, a sliding rail is arranged on the second vertical column 10, a platform 12 capable of sliding vertically along the sliding rail is arranged on the sliding rail, and a universal ball 14 is arranged on the platform 12. The stacking device 4 is also provided with a distributing device 2, and the distributing device 2 can distribute the boxes conveyed by the conveying belt 3 to two sides of the platform until the platforms are full of the boxes to form a regular row.

The distribution device 2 is arranged below the platform 12, the distribution device 2 is fixedly arranged on the walking platform 5, the distribution device 2 comprises a lead screw, a lead screw nut (not shown in the figure) and a pusher dog 18 arranged on the lead screw nut, a gap 13 is arranged on the platform 12, and the pusher dog 18 extends out of the gap 13. When the conveying belt 3 is conveyed to the box body, the motor drives the screw rod mechanism to operate, and drives the pusher dog 18 on the screw rod nut to move along the gap 13, so that the box body is pushed to move from the middle part of the platform 12 to the two sides until the box body is fully arranged on the platform, and a regular row is formed.

The distributing device 2 may also be an air cylinder disposed below the platform 12, the air cylinder includes a cylinder body and a piston rod, a shifting piece (not shown) is disposed on the piston rod, a shifting claw is disposed on the shifting piece, and the shifting claw 18 extends out of the gap 13. When the conveyor belt 3 is conveyed to the box body, the air cylinder drives the poking piece to move along the gap 13, so that the box body is poked to move to the two sides from the middle part of the platform 12.

The platform 12 is provided with a horizontal pushing device, and the horizontal pushing device comprises a push plate and a horizontal pushing cylinder connected with the push plate. After the boxes on the flat plate 12 are stacked in a row, the platform 12 moves up and down and back and forth under the driving of the driving device, and after the platform 12 is positioned at the corresponding position on the stack, the horizontal pushing cylinder is started to push the rows of boxes on the platform 12 to be placed at the corresponding position on the stack. And the stacking device is provided with a laser range finder. A gimbaled ball 14 is provided on the platform.

Claims (1)

1. The utility model provides a box pile up neatly system which characterized in that: the automatic line-changing and conveying device comprises a control system, a loading platform, a conveying belt and a stacking device connected with the conveying belt, wherein a branch conveying belt is arranged beside the conveying belt, a box body sorting and conveying device is arranged at the joint of the conveying belt and the branch conveying belt, the box body sorting and conveying device comprises a line-changing mechanism arranged at the joint of the conveying belt and the branch conveying belt and a box body overturning device arranged on the conveying belt or the branch conveying belt, the line-changing mechanism comprises a steering wheel, unpowered rollers are arranged on the steering wheel, a steering mechanism capable of steering the rollers is arranged above the steering wheel, the steering mechanism comprises a rotating shaft, a sheave mechanism arranged at the bottom of the rotating shaft, a deflector rod arranged at the top of the rotating shaft and a rack arranged on the steering wheel, the rack is connected into a whole through a connecting rod, the rack can slide along the steering wheel, the rollers are matched with the rack in position, the rollers are arranged on the steering wheel through bearings, the rollers comprise wheel bodies, wheel discs and transverse shafts, gear teeth are arranged on the outer sides of the wheel discs, the side faces of the bottoms of the wheel discs are provided with the gear teeth matched with the gear teeth, the wheel discs can freely rotate around vertical shafts, and the wheel discs are thrust bearings; the geneva mechanism is arranged at the bottom of the rotating shaft, the height of the geneva mechanism is the same as that of the rack, the geneva mechanism comprises a driving drive plate fixedly connected with the rotating shaft and a driven geneva wheel matched with the driving drive plate, the driving drive plate is arranged at the bottom of the rotating shaft and is concentric with the rotating shaft, a gear meshed with the rack is arranged on the driven geneva wheel, the deflector rod is vertical to the rotating shaft, and a return spring is arranged on the driving drive plate or the rotating shaft;

the conveying belt can randomly transmit the horizontal box body or the vertical box body, the height of the deflector rod is lower than that of the vertical box body and higher than that of the horizontal box body, the rotating shaft is arranged on the edge of the conveying belt, and the deflector rod extends towards the middle of the conveying belt; when the box body reaches the wire rotating mechanism, the top of the vertical box body contacts with the deflector rod, the deflector rod is pushed to the side edge of the conveying belt, and after the vertical box body passes through the wire rotating mechanism, the deflector rod returns to drive all rollers on the steering wheel to return to wait for the next box body; the transverse box body can not touch the deflector rod, and continues to convey forwards along the original direction of the main conveying belt, so that the transverse box body and the vertical box body are separated to different conveying belts;

the box turning device comprises an opening formed in a conveying belt, two supporting plates are fixedly arranged below the opening, a guide rod is arranged between the two supporting plates, a sliding block is installed on the guide rod, a cylinder is arranged between the guide rods, one end of the cylinder is connected with the sliding block, the other end of the cylinder is connected with a first supporting plate, an L-shaped turning plate is connected onto the sliding block, a hinged plate is installed at the bottom of one side of the L-shaped turning plate, one end of the hinged plate is hinged onto the sliding block, the other end of the hinged plate is connected with a second supporting plate through a connecting rod, one end of the connecting rod is hinged with the L-shaped turning plate, the other end of the connecting rod is hinged with the second supporting plate, and a trigger device is arranged on the L-shaped turning plate.

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