Packaging conveyor

Abstract

The invention discloses a packaging conveyor, and belongs to the field of roller conveying line bodies, the packaging conveyor comprises a conveying rack and a plurality of rollers which are rotationally assembled at the top of the conveying rack and are linearly distributed at equal intervals, at least four universal wheels which are distributed in a matrix are further fixedly arranged at the bottom of the conveying rack, and the universal wheels are convenient for the conveying rack to move; a first partition plate and a second partition plate which are distributed in parallel are further fixedly arranged in the conveying rack, the states of the bottom supporting and tightening unit and the limiting unit are driven at the same time through the driving unit, and in the moving process of the conveying rack, a packaging box needing to be transferred can be limited to the top of a roller; the packaging box body can not shake and topple due to inertia at will, when the packaging box body above the conveying rack needs to be carried, limitation of the limiting unit on the packaging box body can be canceled, the bottom supporting unit is driven to limit the conveying rack from sideslip, and therefore workers can conveniently carry the packaging box body on the conveying rack.

Description

Technical Field

[0001] The present invention relates to the field of roller conveyor lines, and specifically to a packaging conveyor. Background Art

[0002] Roller conveyor is a commonly used assembly line in semi-automated production and packaging workshops. Multiple assembly stations can be placed on the conveyor line to assemble products. A movable transfer conveyor will also be placed on the outside of the conveyor line. This conveyor is a non-powered roller conveyor line with a relatively short thread. It is mainly used for temporary carrying or transfer of packaged products.

[0003] The rollers on the unpowered roller conveyor line can roll freely, which makes it convenient for the staff to push the packaging boxes and load and unload the packaging boxes. However, because the rollers can roll freely, when the staff transfer the packaging boxes through the unpowered roller conveyor, they also need to hold the packaging boxes at the same time, because the packaging boxes are easy to slide on the unpowered roller conveyor due to inertia, and there is a risk of falling. If the weight of the product in the packaging box is large, the inertia generated during the movement will become larger, and the staff will need to increase the strength of supporting the packaging box, which can easily make the staff's arms tired. Summary of the invention

[0004] The object of the present invention is to provide a packaging conveyor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a packaging conveyor, comprising: a conveyor frame and a plurality of rollers rotatably mounted on the top of the conveyor frame and distributed in a straight line and equidistantly, the bottom of the conveyor frame is also fixedly provided with at least four universal wheels distributed in a matrix, the universal wheels facilitate the movement of the conveyor frame, the interior of the conveyor frame is also fixedly provided with a first partition plate and a second partition plate distributed in parallel, and a protective sleeve plate is also fixedly provided between the first partition plate and the second partition plate, the first partition plate and the second partition plate are both located below the roller, and the first partition plate is located between the roller and the second partition plate, a group of limiting units is provided between two adjacent rollers, and the number of limiting units in each group is several, a hollow shell is commonly provided at the bottom of the several limiting units, and the hollow shell simultaneously moves up and down with the several limiting units, and the limiting units are used to limit the packaging box body;

[0006] A bottom tightening unit is used to brake the conveyor frame to prevent the conveyor frame from shaking during the movement of the packaging box on the conveyor frame;

[0007] The driving unit is used to simultaneously adjust the states of the limiting unit and the bottom tightening unit, and the driving unit is arranged inside the protective sleeve.

[0008] Preferably, the limiting unit includes a sealing cylinder located inside the hollow shell, and the upper end portion of the sealing cylinder is fixedly connected to a hollow tube, the hollow tube slidably passes through the hollow shell, the outer surface of the hollow tube is fixedly sleeved with a snap ring, the snap ring is distributed above the hollow shell, and a first spring is also fixedly arranged between the lower end surface of the snap ring and the hollow shell, the top fixed sleeve of the hollow tube is provided with a suction cup, and the upper end surface of the suction cup does not extend out of the top horizontal section of the roller, the interior of the sealing cylinder is slidably embedded with a piston disk, and the bottom of the piston disk is fixedly provided with a column that slides through the sealing cylinder, a tooth plate is distributed on the outside of each sealing cylinder, and the tooth plate is fixedly suspended inside the hollow shell, a plurality of tooth grooves equidistantly distributed in a straight line are opened on a side of the column close to the tooth plate, and a first gear is rotatably mounted at the bottom of each sealing cylinder, the first gear is distributed between the tooth plate and the column, and the first gear is movably meshed with the tooth plate and the tooth groove at the same time.

[0009] Preferably, at least two first connecting rods are fixedly provided at the bottom of the hollow shell, and the first connecting rods are slidably extended into the interior of the protective sleeve plate.

[0010] Preferably, the bottom tightening unit includes a block distributed just below the bottom center of the second partition, the outer surface of the block is provided with at least two toothless gears distributed equidistantly around the circumference, each of the toothless gears is rotatably suspended at the bottom of the second partition, and the outer surface of the toothless gear is also fixedly provided with a swing arm, the side wall of the block close to each of the toothless gears is fixedly provided with a plurality of tooth blocks distributed equidistantly in a straight line, and the tooth blocks and the toothless gears on the same side are meshingly assembled, a friction pad is fixedly provided at one end of each swing arm away from the toothless gear, and the friction pad is used to contact the bottom surface, a sliding column is fixedly provided inside the block, and the upper end surface of the sliding column slides and extends to the inside of the protective sleeve plate, the sliding column is designed for axial sliding, a hanger is also provided on the outside of each swing arm, and the hanger is fixed below the second partition, and a cleaning brush that can clean the end surface of the friction pad that contacts the ground is fixedly provided at the bottom of the hanger.

[0011] Preferably, the driving unit includes a rotating shaft rotatably arranged inside the protective sleeve plate, a first eccentric wheel and at least two second eccentric wheels are fixedly sleeved on the outer surface of the rotating shaft, the number of the second eccentric wheels is consistent with the number of the first connecting rods, a second tray is arranged on the top of the sliding column, and the second tray is located directly below the first eccentric wheel, each of the first connecting rods is located directly above the corresponding second eccentric wheel, buckling components are arranged between the second tray and the first eccentric wheel, and between the first connecting rod and the second eccentric wheel, and an elastic connecting component is also arranged between the second tray and the sliding column, and a driving component for driving the rotating shaft to deflect is arranged on the outside of the rotating shaft.

[0012] Preferably, the buckling component includes annular grooves opened on the two end surfaces of the first eccentric wheel and the second eccentric wheel, and a group of mounting seat blocks are fixedly provided at the bottom of the first connecting rod and the top of the second tray, the number of mounting seat blocks in each group is two, and they are symmetrically distributed on both sides of the first eccentric wheel / the second eccentric wheel, and a pin shaft slidably embedded in the annular groove is fixedly provided inside each of the mounting seat blocks.

[0013] Preferably, the elastic connecting component includes a first tray fixedly mounted on the outer surface of the sliding column, the first tray is located inside the protective cover plate and below the second tray, a retaining rod slidably mounted inside the sliding column is fixedly arranged at the bottom of the second tray, and a tension spring is also fixedly arranged between the second tray and the first tray.

[0014] Preferably, the driving component includes an electric motor, and the electric motor is fixedly mounted on the upper end of the second partition, the output end of the motor is fixedly assembled with one end of the rotating shaft through a coupling, and a rechargeable power supply for providing electrical energy to the motor is also provided inside the second partition, and an electric control switch for controlling the operation of the motor is also provided on the top of the conveyor frame, and the electric control switch is used to adjust the rotation angle of the rotating shaft.

[0015] Preferably, the driving component includes a second gear fixedly sleeved on the outer surface of the rotating shaft, the outer surface of the second gear is meshingly equipped with a flexible gear belt, the flexible gear belt is U-shaped and sleeved on the outside of the second gear, one end of the flexible gear belt is fixedly provided with a first connecting plate, and the other end is fixedly provided with a second connecting plate, a second tension spring is fixedly provided between the end of the first connecting plate away from the flexible gear belt and the protective sleeve plate, the end of the second connecting plate away from the flexible gear belt is fixedly provided with a first traction rope, and the first traction rope slides through the protective sleeve plate, a gear differential is fixedly mounted on the upper end surface of the second partition, and the gear differential is located at the edge of the second partition, a first foot pedal is fixedly provided at the input end of the gear differential, and a winding disk is fixedly provided at the output end of the gear differential, the exposed end of the first traction rope is fixed in the winding disk, a notch is provided at the edge of the second partition, and the notch is located directly below the first foot pedal, and a positioning component is also provided between the winding disk and the second partition.

[0016] Preferably, the positioning component includes a limit frame located at the outer side of the winding disk, and the limit frame is fixed on the end face of the second partition, the limit frame is slidably equipped with a first sliding plate inside the limit frame, and the bottom of the first sliding plate is fixedly provided with a connecting column that slides through the second partition, and the bottom of the connecting column is fixedly sleeved with a second foot pedal, the limit frame is fixedly provided with a limit sleeve on an end face close to the winding disk, and the limit sleeve and the limit frame are vertically distributed, the limit sleeve is slidably equipped with a second sliding plate inside the limit sleeve, one end of the second sliding plate close to the winding disk is fixedly provided with a pin that slides through the limit sleeve, and the other end of the second sliding plate is provided with a third spring, the side wall of the winding disk is provided with a pin hole that is engaged with the pin, a second traction rope is fixedly provided between the end of the second sliding plate away from the pin and the first sliding plate, and the second traction rope slides through the limit sleeve and the limit frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, the driving unit simultaneously drives the bottom tightening unit and the limiting unit, so that during the movement of the conveyor frame, the packaging box that needs to be transferred can be limited on the top of the roller, and the packaging box will not be allowed to shake or fall down due to inertia. When the packaging box above the conveyor frame needs to be moved, the restriction on the packaging box by the limiting unit can be cancelled, and the bottom tightening unit can be driven to limit the conveyor frame from sliding sideways, thereby facilitating the staff to move the packaging box on the conveyor frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the suction cup position distribution structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the sealing cylinder of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the first gear and the tooth groove meshing state of the present invention;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the second partition of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the protective sleeve plate of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the first eccentric wheel and the second eccentric wheel of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0027] Fig. 9 This is a schematic diagram of the position distribution structure of the first foot pedal and the second foot pedal of the present invention;

[0028] Fig.10 For the present invention Fig. 9 Enlarged view of point B in the middle.

[0029] In the figure: 1, conveyor frame; 2, roller; 3, first partition; 4, second partition; 5, protective sleeve; 6, hollow shell; 7, hollow tube; 8, suction cup; 9, sealing cylinder; 10, piston disc; 11, column; 12, snap ring; 13, first spring; 14, tooth plate; 15, first gear; 16, tooth groove; 17, slide column; 18, sleeve block; 19, tooth block; 20, missing tooth gear; 21, swing arm; 22, friction pad; 23, hanger; 24, cleaning brush; 25, rotating shaft; 26, first eccentric wheel; 27, second eccentric wheel; 28, second gear ; 29. ​​Flexible gear belt; 30. First connecting plate; 31. Second tension spring; 32. Second connecting plate; 33. First traction rope; 34. First connecting rod; 35. First tray; 36. First tension spring; 37. Second tray; 38. Ring groove; 39. Mounting seat block; 40. Pin shaft; 41. Gear differential; 42. First foot pedal; 43. Winding reel; 44. Second foot pedal; 45. Limit frame; 46. First slide plate; 47. Limit sleeve; 48. Second slide plate; 49. Latch; 50. Third spring; 51. Second traction rope; 52. Pin hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1-Figure 10 , a packaging conveyor shown in the figure comprises: a conveyor frame 1 and a plurality of rollers 2 rotatably assembled on the top of the conveyor frame 1 and distributed in a straight line and equidistantly, at least four universal wheels distributed in a matrix are fixedly arranged at the bottom of the conveyor frame 1, and the universal wheels facilitate the movement of the conveyor frame 1, and a first partition 3 and a second partition 4 distributed in parallel are fixedly arranged inside the conveyor frame 1, and a protective sleeve plate 5 is fixedly arranged between the first partition 3 and the second partition 4, the first partition 3 and the second partition 4 are both located below the roller 2, and the first partition 3 is located between the roller 2 and the second partition 4, a group of limiting units are arranged between two adjacent rollers 2, and the number of each group of limiting units is several, a hollow shell 6 is commonly arranged at the bottom of the several limiting units, and the hollow shell 6 simultaneously moves up and down with the several limiting units, and the limiting units are used to limit the packaging box body;

[0032] The bottom tightening unit is used to brake the conveyor frame 1 to prevent the conveyor frame 1 from shaking during the movement of the packaging box on the conveyor frame 1;

[0033] The driving unit is used to simultaneously adjust the states of the limiting unit and the bottom tightening unit, and the driving unit is arranged inside the protective sleeve plate 5.

[0034] The limiting unit includes a sealing cylinder 9 located inside the hollow shell 6, and the upper end of the sealing cylinder 9 is fixedly connected with a hollow tube 7, the hollow tube 7 slides through the hollow shell 6, the outer surface of the hollow tube 7 is fixedly sleeved with a clamping ring 12, the clamping ring 12 is distributed above the hollow shell 6, and a first spring 13 is fixedly arranged between the lower end surface of the clamping ring 12 and the hollow shell 6, the top of the hollow tube 7 is fixedly sleeved with a suction cup 8, and the upper end surface of the suction cup 8 does not extend out of the top horizontal section of the drum 2, the inside of the sealing cylinder 9 is slidably embedded with a piston disk 10, and the bottom of the piston disk 10 is fixedly provided with a column 11 that slides through the sealing cylinder 9, and the outer side of each sealing cylinder 9 There is a tooth plate 14 distributed on each of them, and the tooth plate 14 is fixedly suspended inside the hollow shell 6. A plurality of tooth grooves 16 distributed in a straight line and equidistantly are opened on one side of the column 11 close to the tooth plate 14. A first gear 15 is rotatably mounted on the bottom of each sealing tube 9. The first gear 15 is distributed between the tooth plate 14 and the column 11, and the first gear 15 is movably engaged with the tooth plate 14 and the tooth groove 16 at the same time. When the hollow tube 7 moves downward with the sealing tube 9 inside the hollow shell 6, the first gear 15 can make the column 11 move downward with the piston disc 10 inside the sealing tube 9, that is, the air inside the sealing tube 9 and the hollow tube 7 can be sucked.

[0035] At least two first connecting rods 34 are fixedly disposed at the bottom of the hollow shell 6 , and the first connecting rods 34 are slidably extended into the interior of the protective sleeve plate 5 .

[0036] The driving unit includes a rotating shaft 25 rotatably arranged inside the protective sleeve plate 5, a first eccentric wheel 26 and at least two second eccentric wheels 27 are fixedly sleeved on the outer surface of the rotating shaft 25, the number of the second eccentric wheels 27 is consistent with the number of the first connecting rods 34, the distal ends of the first eccentric wheel 26 and the second eccentric wheel 27 are far away from each other, that is, the distal end of the second eccentric wheel 27 faces upward / downward, at this time, the distal end of the first eccentric wheel 26 faces downward / upward, a second tray 37 is arranged on the top of the sliding column 17, and the second tray 37 is located directly below the first eccentric wheel 26, each of the first connecting rods 34 is provided with a second tray 37, and the second tray 37 is located directly below the first eccentric wheel 26. A connecting rod 34 is located directly above the corresponding second eccentric wheel 27, and buckling components are provided between the second tray 37 and the first eccentric wheel 26, and between the first connecting rod 34 and the second eccentric wheel 27. An elastic connecting component is also provided between the second tray 37 and the sliding column 17. A driving component for driving the rotating shaft 25 to deflect is provided on the outside of the rotating shaft 25. The driving component allows the rotating shaft 25 to rotate half a circle. Under the action of the buckling components, the first eccentric wheel 26 and the second eccentric wheel 27 can move up and down with the second tray 37 and the first connecting rod 34.

[0037] The fastening components include annular grooves 38 opened on the two end surfaces of the first eccentric wheel 26 and the second eccentric wheel 27. A group of mounting blocks 39 are fixedly provided at the bottom of the first connecting rod 34 and the top of the second tray 37. The number of each group of mounting blocks 39 is two, and they are symmetrically distributed on both sides of the first eccentric wheel 26 / the second eccentric wheel 27. A pin shaft 40 slidably mounted in the annular groove 38 is fixedly provided inside each mounting block 39. When the first eccentric wheel 26 or the second eccentric wheel 27 rotates, the second tray 37 or the first connecting rod 34 can be pushed and pulled through the sliding cooperation between the annular groove 38 and the pin shaft 40, thereby realizing the up and down movement of the second tray 37 and the first connecting rod 34.

[0038] The elastic connecting component includes a first tray 35 fixedly mounted on the outer surface of the sliding column 17, the first tray 35 is located inside the protective cover plate 5 and below the second tray 37, a retaining rod slidably mounted inside the sliding column 17 is fixedly arranged at the bottom of the second tray 37, and a tension spring is also fixedly arranged between the second tray 37 and the first tray 35, that is, after the sliding column 17 moves up to the maximum value with the sleeve block 18, when the first eccentric wheel 26 continues to move upward with the second tray 37, the first tension spring 36 will be stretched, so that a vertical upward elastic pulling force is applied to the sliding column 17 through the second tray 37.

[0039] The driving component includes an electric motor, and the electric motor is fixedly mounted on the upper end of the second partition 4. The output end of the motor and one end of the rotating shaft 25 are fixedly assembled through a coupling. A rechargeable power supply for providing electrical energy to the motor is also provided inside the second partition 4. An electric control switch for controlling the operation of the motor is also provided on the top of the conveyor frame 1. The electric control switch is used to adjust the rotation angle of the rotating shaft 25. The motor is a reduction motor with a large torque, and the drive of the rotating shaft 25 is more stable.

[0040] Example 2: Please refer to Figure 5, this embodiment is a further explanation of the above embodiment, the bottom tightening unit includes a sleeve block 18 distributed just below the bottom center of the second partition plate 4, the outer surface of the sleeve block 18 is provided with at least two toothless gears 20 distributed equidistantly around the circumference, each toothless gear 20 is rotatably suspended at the bottom of the second partition plate 4, and the outer surface of the toothless gear 20 is also fixedly provided with a swing arm 21, the side wall of the sleeve block 18 close to each toothless gear 20 is fixedly provided with a plurality of tooth blocks 19 distributed equidistantly in a straight line, and the tooth blocks 19 and the toothless gear 20 on the same side are meshed and assembled, and a friction pad 22 is fixedly provided at one end of each swing arm 21 away from the toothless gear 20, and the friction pad 22 is used to contact the bottom surface, and the inner part of the sleeve block 18 ... the inner part of the sleeve block 18 is fixedly provided with a plurality of tooth blocks 19 distributed equidistantly in a straight line, and the tooth blocks 19 and the toothless gear 20 on the same side are meshed and assembled, and the inner part of the sleeve block 18 is fixedly provided with a plurality of tooth blocks 19 distributed equidistantly in a straight line, and the tooth blocks 1 A sliding column 17 is fixedly provided, and the upper end surface of the sliding column 17 slides and extends to the inside of the protective sleeve plate 5. The sliding column 17 is designed for axial sliding. A hanger 23 is also provided on the outside of each swing arm 21, and the hanger 23 is fixed under the second partition plate 4. A cleaning brush 24 that can clean the end surface of the friction pad 22 that contacts the ground is fixedly provided at the bottom of the hanger 23. Since the position of the toothless gear 20 is fixed, when the sliding column 17 moves up and down with the sleeve block 18, the toothless gear 20 can engage with the toothless gear 20 and the tooth block 19 to swing with the swing arm 21 and the friction pad 22. When the friction pad 22 is against the ground, the friction between the swing arm 21 and the ground can be increased, thereby preventing the conveyor from shaking at will.

[0041] Example 3: Please refer to Figure 6 , Fig. 9 and Fig.10This embodiment is another implementation of the first embodiment. The driving component includes a second gear 28 fixedly mounted on the outer surface of the rotating shaft 25. The outer surface of the second gear 28 is meshed with a flexible gear belt 29. The flexible gear belt 29 is U-shaped and is mounted on the outside of the second gear 28. A first connecting plate 30 is fixedly provided at one end of the flexible gear belt 29, and a second connecting plate 32 is fixedly provided at the other end. A second tension spring 31 is fixedly provided between the end of the first connecting plate 30 away from the flexible gear belt 29 and the protective sleeve plate 5. A first traction rope 33 is fixedly provided at the end of the second connecting plate 32 away from the flexible gear belt 29, and the first traction rope 33 slides through the protective sleeve plate 5. The upper end of the second partition plate 4 A gear differential 41 is fixedly mounted on the surface, and the gear differential 41 is located at the edge of the second partition 4. A first foot pedal 42 is fixedly mounted on the input end of the gear differential 41, and a winding drum 43 is fixedly sleeved on the output end of the gear differential 41. The exposed end of the first traction rope 33 is fixed in the winding drum 43. A slot is opened on the edge of the second partition 4, and the slot is located directly below the first foot pedal 42. A positioning component is also provided between the winding drum 43 and the second partition 4. The gear differential 41 is a gear speed-increasing differential without a self-locking function. By stepping on the first foot pedal 42 to rotate it to a certain angle, the winding drum 43 can be rotated to a large angle, thereby winding and pulling the first traction rope 33.

[0042] The positioning component includes a limit frame 45 located outside the winding disk 43, and the limit frame 45 is fixed to the end surface of the second partition 4, and the limit frame 45 is slidably equipped with a first slide plate 46 inside, and a connecting column that slides through the second partition 4 is fixedly provided at the bottom of the first slide plate 46, and a second foot pedal 44 is fixedly sleeved at the bottom of the connecting column, and a limit sleeve 47 is fixedly provided on one end surface of the limit frame 45 close to the winding disk 43, and the limit sleeve 47 and the limit frame 45 are vertically distributed, and a second slide plate 48 is slidably equipped inside the limit sleeve 47, and the second slide plate 48 is close to the winding disk 43. A latch 49 which slides through the limiting sleeve 47 is fixedly provided at one end thereof, and a third spring 50 is provided at the other end of the second sliding plate 48. A pin hole 52 which engages with the latch 49 is provided on the side wall of the winding plate 43. A second traction rope 51 is fixedly provided between the end of the second sliding plate 48 away from the latch 49 and the first sliding plate 46, and the second traction rope 51 slides through the limiting sleeve 47 and the limiting frame 45. Stepping on the second foot pedal 44 can cause the second foot pedal 44 to pull the first sliding plate 46 downward, so that the latch 49 can be retracted into the inside of the limiting sleeve 47 and separated from the pin hole 52.

[0043] Working principle: When the staff needs to transfer the packaging boxes on the assembly line body for spot inspection: the first step is to push the conveyor frame 1 to the side of the assembly line body. At this time, the swing arm 21 is in a tilted state and does not contact the ground, and the suction cup 8 is in a raised state, so the staff needs to step on the first foot pedal 42 to deflect the first foot pedal 42, and rotate the winding disk 43 under the action of the gear differential 41, and the first traction rope 33 is wound and pulled by the winding disk 43. When the winding disk 43 is rotating, the latch 49 can be assembled with the pin hole 52, which plays a positioning role for the winding disk 43. At this time, even if the first foot pedal 42 is released, the winding disk 43 will not rotate;

[0044] When the first traction rope 33 is pulled, the flexible gear belt 29 can be pulled through the second connecting plate 32 to make the rotating shaft 25 rotate half a circle, and at the same time, the second tension spring 31 can be stretched. At this time, the rotating shaft 25 moves downward with the second eccentric wheel 27, so that the first connecting rod 34, the hollow shell 6, the plurality of hollow tubes 7 and the suction cup 8 are lowered. At the same time, the first eccentric wheel 26 pulls the second tray 37 and the slide column 17 upward through the engagement of the pin shaft 40 and the annular groove 38 to make them rise. During the rising process of the slide column 17, under the active engagement of the toothless gear 20 and the tooth block 19, the swing arm 21 can swing downward with the friction pad 22, so that the friction pad 22 is against the ground, increasing the friction between the conveyor frame 1 and the ground, thereby ensuring the stability of the conveyor frame 1. At this time, when the packaging box on the assembly line body is moved to the upper part of the conveyor frame 1, the conveyor frame 1 will not easily shake or slide sideways, which is more convenient for the staff to move the position of the packaging box.

[0045] The second step is to successfully transfer the packaging box to the roller 2. At this time, the position of the packaging box needs to be transferred by the conveyor frame 1. Figure 7Taking the state in as an example, the staff steps on the second foot pedal 44 to make the first slide plate 46 drop a certain angle, and the second traction rope 51 pulls the second slide plate 48 to make the pin 49 retract to the inside of the limiting sleeve 47, and no longer restricts the pin hole 52. At this time, under the action of the stretched second tension spring 31, the first traction rope 33 and the winding disc 43 can be reset, that is, the rotating shaft 25 is reset and rotated half a circle, so that the second eccentric wheel 27 pushes the first connecting rod 34 upward, and the first eccentric wheel 26 pushes the sliding column 17 downward. At this time, the swing arm 21 unfolds and tilts with the friction pad 22, and no longer contacts the bottom surface. In the process of the hollow shell 6 moving upward with the hollow tube 7 and the suction cup 8, when the suction cup 8 is against the bottom of the packaging box, When the surfaces are tightly fitted, the continuous rise of the hollow shell 6 will compress the first spring 13, and the relatively hollow tube 7 will extend into the interior of the hollow shell 6, and the first gear 15 will be engaged with the tooth plate 14 and the tooth groove 16, so that the column 11 can move downward with the piston disk 10 inside the sealing tube 9, and the air inside the hollow tube 7 is sucked. Since the suction cup 8 is tightly attached to the bottom surface of the packaging box, the two are closed, and under the suction of the piston disk 10, a negative pressure can be formed inside the hollow tube 7. Through the effect of negative pressure adsorption inside several hollow tubes 7, the packaging box can be stabilized on the roller 2, and there is no need for staff to hold it by hand, and the packaging box will not slide or tip over due to inertia.

[0046] After moving to the destination, it is only necessary to repeat the first step, so that the hollow shell 6 with the hollow tube 7, the suction cup 8, the sealing cylinder 9, and the piston disc 10 are reset, and the swing arm 21 with the friction pad 22 is pressed against the ground for braking again, and the packaging box on the drum 2 can be moved.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging conveyor, characterized in that: include: A conveyor frame (1) and a plurality of rollers (2) rotatably mounted on the top of the conveyor frame (1) and distributed in a straight line and at equal intervals. A first partition (3) and a second partition (4) are fixedly arranged inside the conveyor frame (1), and a protective sleeve (5) is fixedly arranged between the first partition (3) and the second partition (4). The first partition (3) and the second partition (4) are both located below the rollers (2). A group of limiting units is arranged between two adjacent rollers (2), and the number of limiting units in each group is a plurality. A hollow shell (6) is commonly arranged at the bottom of the plurality of limiting units, and the hollow shell (6) simultaneously moves up and down with the plurality of limiting units, and the limiting units are used to limit the packaging box body. A bottom tightening unit, used to brake the conveyor frame (1) to prevent the conveyor frame (1) from shaking during the movement of the packaging box on the conveyor frame (1); A driving unit is used for simultaneously adjusting the states of the limiting unit and the bottom tightening unit, and the driving unit is arranged inside the protective sleeve plate (5).

2. A packaging conveyor according to claim 1, characterized in that: The limiting unit comprises a sealing cylinder (9) located inside the hollow shell (6), and the upper end of the sealing cylinder (9) is fixedly connected with a hollow tube (7), the hollow tube (7) slides through the hollow shell (6), the outer surface of the hollow tube (7) is fixedly sleeved with a clamping ring (12), and a first spring (13) is fixedly arranged between the lower end surface of the clamping ring (12) and the hollow shell (6), the top of the hollow tube (7) is fixedly sleeved with a suction cup (8), the interior of the sealing cylinder (9) is slidably embedded with a piston disc (10), and the movable A column (11) is fixedly provided at the bottom of the plug disc (10) and slides through the sealing cylinder (9). A tooth plate (14) is distributed on the outer side of each sealing cylinder (9), and the tooth plate (14) is fixedly suspended inside the hollow shell (6). A plurality of tooth grooves (16) are arranged on one side of the column (11) close to the tooth plate (14) and are distributed equidistantly in a straight line. A first gear (15) is also rotatably mounted at the bottom of each sealing cylinder (9), and the first gear (15) is movably engaged with the tooth plate (14) and the tooth groove (16) at the same time.

3. A packaging conveyor according to claim 2, characterized in that: At least two first connecting rods (34) are fixedly arranged at the bottom of the hollow shell (6), and the first connecting rods (34) are slidably extended into the interior of the protective sleeve plate (5).

4. A packaging conveyor according to claim 3, characterized in that: The bottom tightening unit comprises a sleeve (18) distributed below the bottom of the second partition (4); the outer surface of the sleeve (18) is provided with at least two toothless gears (20) distributed equidistantly in a circumference, and the outer surface of the toothless gear (20) is also fixedly provided with a swing arm (21); the side wall of the sleeve (18) close to each toothless gear (20) is fixedly provided with a plurality of tooth blocks (19) distributed equidistantly in a straight line, and the tooth blocks (19) and the toothless gear (20) located on the same side are meshingly assembled; a friction pad (22) is fixedly provided at one end of each swing arm (21) away from the toothless gear (20); a sliding column (17) is fixedly provided inside the sleeve (18), and the upper end surface of the sliding column (17) slides and extends to the inside of the protective sleeve (5).

5. A packaging conveyor according to claim 4, characterized in that: The driving unit comprises a rotating shaft (25) rotatably arranged inside the protective sleeve plate (5); a first eccentric wheel (26) and at least two second eccentric wheels (27) are fixedly sleeved on the outer surface of the rotating shaft (25); a second tray (37) is arranged on the top of the slide column (17), and the second tray (37) is located directly below the first eccentric wheel (26); each of the first connecting rods (34) is located directly above the corresponding second eccentric wheel (27); buckling components are arranged between the second tray (37) and the first eccentric wheel (26), and between the first connecting rod (34) and the second eccentric wheel (27); an elastic connecting component is also arranged between the second tray (37) and the slide column (17); and a driving component for driving the rotating shaft (25) to deflect is arranged on the outside of the rotating shaft (25).

6. A packaging conveyor according to claim 5, characterized in that: The buckling component includes an annular groove (38) formed on both end surfaces of the first eccentric wheel (26) and the second eccentric wheel (27); a group of mounting blocks (39) are fixedly provided at the bottom of the first connecting rod (34) and the top of the second tray (37); each group of mounting blocks (39) has two mounting blocks, which are symmetrically distributed on both sides of the first eccentric wheel (26) / the second eccentric wheel (27); and a pin shaft (40) is fixedly provided inside each mounting block (39) and is slidably mounted inside the annular groove (38).

7. A packaging conveyor according to claim 5, characterized in that: The elastic connecting component comprises a first tray (35) fixedly mounted on the outer surface of the sliding column (17), a retaining rod slidably mounted inside the sliding column (17) is fixedly arranged at the bottom of the second tray (37), and a first tension spring (36) is also fixedly arranged between the second tray (37) and the first tray (35).

8. A packaging conveyor according to claim 5, characterized in that: The driving component comprises an electric motor, and the electric motor is fixedly mounted on the upper end of the second partition (4), the output end of the electric motor is fixed to one end of the rotating shaft (25), and a rechargeable power supply for providing electric energy to the electric motor is also arranged inside the second partition (4), and an electric control switch for controlling the operation of the electric motor is also arranged on the top of the conveyor frame (1).

9. A packaging conveyor according to claim 5, characterized in that: The driving component comprises a second gear (28) fixedly mounted on the outer surface of the rotating shaft (25); the outer surface of the second gear (28) is meshed with a flexible gear belt (29); a first connecting plate (30) is fixedly arranged at one end of the flexible gear belt (29), and a second connecting plate (32) is fixedly arranged at the other end; a second tension spring (31) is fixedly arranged between an end of the first connecting plate (30) away from the flexible gear belt (29) and the protective sleeve plate (5); and the second connecting plate (32) is away from the flexible gear belt (29). A first traction rope (33) is fixedly arranged at one end, and the first traction rope (33) slides through the protective cover plate (5); a gear differential (41) is fixedly mounted on the upper end surface of the second partition plate (4); a first foot pedal (42) is fixedly arranged at the input end of the gear differential (41), and a winding drum (43) is fixedly sleeved at the output end of the gear differential (41); the exposed end of the first traction rope (33) is fixed in the winding drum (43), and a positioning component is also arranged between the winding drum (43) and the second partition plate (4).

10. A packaging conveyor according to claim 9, characterized in that: The positioning component comprises a limit frame (45) located outside the winding disk (43), and the limit frame (45) is fixed to the end surface of the second partition (4), the limit frame (45) is slidably equipped with a first sliding disk (46) inside, and the bottom of the first sliding disk (46) is fixedly provided with a connecting column that slides through the second partition (4), the bottom of the connecting column is fixedly sleeved with a second foot pedal (44), and the limit frame (45) is fixedly provided with a limit sleeve (46) on one end surface close to the winding disk (43). 7), the interior of the limiting sleeve (47) is slidably equipped with a second sliding disk (48), one end of the second sliding disk (48) close to the winding disk (43) is fixedly provided with a latch (49), and the other end of the second sliding disk (48) is provided with a third spring (50), the side wall of the winding disk (43) is provided with a pin hole (52) engaged with the latch (49), and a second traction rope (51) is fixedly provided between the end of the second sliding disk (48) away from the latch (49) and the first sliding disk (46).

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