CN108725937B

CN108725937B - Disposable locking part and installation device thereof

Info

Publication number: CN108725937B
Application number: CN201810416763.2A
Authority: CN
Inventors: 王辉
Original assignee: Anhui Qilushi Engineering Technology Development Co ltd
Current assignee: Anhui Qilushi Engineering Technology Development Co ltd
Priority date: 2018-05-03
Filing date: 2018-05-03
Publication date: 2020-05-12
Anticipated expiration: 2038-05-03
Also published as: CN108725937A

Abstract

The invention belongs to the technical field of packaging, and particularly relates to a disposable locking part and a mounting device thereof, wherein the disposable locking part can be quickly fastened to a box body and a box cover, is easy to disassemble and can not be recovered after being disassembled, so that the confidentiality of a logistics box is improved; in addition, the mounting device provided by the invention firstly pushes the snap ring to the position above the hole of the box cover through the snap ring feeding mechanism, then utilizes the drawstring feeding mechanism to enable the drawstring to sequentially pass through the snap ring, the box cover and the one-way tensioning mechanism on the box body, and then presses the snap ring into the counter bore on the box cover through the pressing mechanism, so that the fixation of the two ends of the drawstring is realized, and the assembly phase rate and the assembly quality of the box cover and the box body are greatly improved.

Description

Disposable locking part and installation device thereof

Technical Field

The invention belongs to the technical field of packaging, and particularly relates to a disposable locking part and a mounting device thereof.

Background

With the rise of electronic commerce in China, the logistics industry is rapidly developed, and the number of express delivery in China is tens of millions or even hundreds of millions. Most express delivery pieces on the market are packaged by cartons, and the packaging mode mainly has the following defects: first, after the express delivery reaches the receiver, the carton used for wrapping the express delivery is generally directly discarded, so a large amount of paper garbage is generated, and although the carton can be recycled, the cost required by recycling still consumes a large amount of social resources, and secondary pollution such as waste water and waste gas is easily generated. Secondly, the guard action of carton is limited, to some fragile, vulnerable express delivery piece, leads to express delivery piece to damage very easily among the transportation, although can place buffers such as disposable gasbag in the carton for strengthening the protection among the prior art, these buffers are difficult to guarantee to closely support simultaneously with carton and express delivery piece and lean on, and express delivery piece can appear rocking wantonly in the carton, and the protective effect is limited. Thirdly, the carton packing mode is too crude, even be unpacked apart by other people in transit and also can recover easily, and hardly by the recipient discovery, this probably leads to the express delivery both sides' privacy to suffer disclosure. Therefore, the inventor of the present invention has designed a new type of logistics box which can solve the above problems, however, the packaging process of the logistics box still needs a set of efficient packaging system to be able to exert the function of the logistics box to the maximum extent.

Disclosure of Invention

The invention aims to provide a disposable locking part capable of quickly linking a box cover and a box body of a logistics box and a mounting device thereof.

In order to achieve the purpose, the invention provides the following technical scheme:

a disposable locking part comprises a drawstring and a retaining ring, wherein the retaining ring comprises a plate-shaped body, the middle part of the body is provided with a strip-shaped hole for the drawstring to pass through, at least one end of the strip-shaped hole is provided with an easily torn line, and the easily torn line extends from one end of the strip-shaped hole to the edge of the body; two petal type trapezoidal clamping pieces are arranged on two sides of the lower end orifice of the strip-shaped hole; the two clamping pieces are flexibly connected with the body, and the two clamping pieces are separated towards two sides in a splayed shape in a normal state; the opposite sides of the two clamping pieces and the belt surface of the pull belt are provided with inverted teeth which are matched with each other, and the inverted teeth are set to enable the pull belt to move upwards relative to the retaining ring and not move downwards relative to the retaining ring when the two clamping pieces are clamped tightly.

A circle of pull ring is arranged around the body, the pull ring is coplanar with the body, the pull ring is connected with the outer end of the easy-tearing line into a whole, and the pull ring is connected with the periphery of the body through the easy-tearing seam; the edge of the body is provided with an avoiding groove so that fingers can lift the pull ring.

The mounting device of the disposable locking part comprises a drawstring feeding mechanism and a retaining ring feeding mechanism; the pull belt feeding mechanism comprises a material discharging coil which is rotatably arranged on a support along a horizontal axis, and a pair of conveying rollers arranged below the material discharging coil, wherein the axes of the conveying rollers are parallel to the axis of the material discharging coil, a guide cylinder is arranged below the conveying rollers, the guide cylinder is of a trapezoidal structure with a wide upper part and a narrow lower part, and the lower end of the guide cylinder is arranged opposite to a hole on the box cover; a cutting mechanism for cutting the drawstring is arranged between the conveying roller and the guide cylinder; the buckle feeding mechanism comprises a horizontal slide way arranged on a bottom plate (namely a pressing plate in the embodiment of the invention), one end of the slide way is provided with an orifice which penetrates downwards to the bottom surface of the pressing plate, the other end of the slide way is provided with a buckle distributing mechanism, the buckle distributing mechanism is assembled to enable buckles to fall into the slide way one by one, a push block is arranged in the slide way, the push block is arranged in a reciprocating mode along the length direction of the slide way, the push block is assembled to push buckles to the orifice from the lower side of the buckle distributing mechanism, a material pressing mechanism is further arranged at the orifice, and the material pressing mechanism is assembled to press the buckles at the orifice into the orifice until the buckles are flush with the bottom surface of the pressing plate.

The roller surface of at least one of the conveying rollers is provided with inverted teeth matched with the surface of the pull belt. An annular groove is arranged on the roller surface of one of the conveying rollers, the width of the annular groove is equal to that of the pull belt, and the depth of the annular groove is equal to that of the pull belt; the width of another conveying roller is equal with the width of annular and this conveying roller is just to the annular setting. One conveying roller is driven by a first servo motor, and one end, far away from the first servo motor, of the conveying roller is in reverse synchronous rotation fit with the other conveying roller through a pair of gears meshed with each other. The material placing coil is detachably connected with the bracket.

The shearing mechanism comprises a fixed blade and a movable blade, the fixed blade is fixedly connected with the bracket through a cross beam, and the movable blade is movably connected with the bracket and forms shearing fit with the fixed blade.

One end of the movable blade is hinged to the support, a first waist-shaped hole is formed in the other end of the movable blade, the movable blade is in sliding hinged fit with the first rocker through the first waist-shaped hole, and the other end of the first rocker is in synchronous rotating fit with a main shaft of the second servo motor.

The buckle feed mechanism includes a storage frame, the storage frame includes vertical pole of wearing, the buckle passes through dodge hole and bar hole suit on wearing the pole, it even has the mounting bracket to wear the pole upper end, the mounting bracket overlap joint makes the pole bottom be in unsettled state on a supporting part, and wears the pole bottom to the thickness that the interval of slide bottom surface equals a buckle, offer on the slide and be used for dodging the groove of dodging of clamping piece, be detachable connection between mounting bracket and the supporting part.

The two sides of the slide way are provided with limiting grooves, notches of the limiting grooves are arranged towards the center of the slide way along the horizontal direction, the two sides of the push block are inserted into the limiting grooves, one end, away from the retaining ring, of the push block is provided with a second waist-shaped hole, the length direction of the second waist-shaped hole is perpendicular to the sliding direction of the push block, the push block and the second rocker form sliding hinged fit through the second waist-shaped hole, and the second rocker is connected with a main shaft of a third servo motor in a synchronous rotating mode.

The pressing mechanism comprises a driving block which is arranged in the slide way in a sliding way, the driving block comprises two convex blocks which are convexly arranged in the direction of the pushing block, the two convex blocks are arranged at intervals and are respectively arranged at the two sides of the pull belt, and the bottom edge of one side of the convex block, which is opposite to the pushing block, is provided with a chamfer angle; the two sides of the driving block are inserted into the limiting grooves, and the two sides of the driving block are fixedly connected with the pushing block through the two connecting parts.

The invention has the technical effects that: the disposable locking part can be quickly fastened to the box body and the box cover, is easy to disassemble and cannot be restored after being disassembled, so that the confidentiality of the logistics box is improved; in addition, the mounting device provided by the invention firstly pushes the snap ring to the position above the hole of the box cover through the snap ring feeding mechanism, then utilizes the drawstring feeding mechanism to enable the drawstring to sequentially pass through the snap ring, the box cover and the one-way tensioning mechanism on the box body, and then presses the snap ring into the counter bore on the box cover through the pressing mechanism, so that the fixation of the two ends of the drawstring is realized, and the assembly phase rate and the assembly quality of the box cover and the box body are greatly improved.

Drawings

Fig. 1 is a schematic perspective view of a material flow box according to an embodiment of the present invention;

FIG. 2 is a top view of a logistics box provided by an embodiment of the present invention;

FIG. 3 is a front view of a logistics box and a partial enlarged view thereof provided by an embodiment of the present invention;

FIG. 4 is a side view of a logistics box and a partial enlarged view thereof as provided by an embodiment of the present invention;

FIG. 5 is a schematic perspective view of the logistics box of the present invention, illustrating the box and box cover structure for clarity, wherein the inflatable air bag of the present invention is not shown;

FIG. 6 is an enlarged partial view of I of FIG. 5;

FIG. 7 is a schematic perspective view of a folded state of the logistics box provided by an embodiment of the invention;

FIG. 8 is a perspective view of a disposable latching component provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a system for packaging couriers provided by an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a cover powder mechanism and a cover conveying mechanism according to an embodiment of the present invention;

fig. 11 is a schematic perspective view of a cover locking mechanism according to an embodiment of the present invention;

FIG. 12 is a schematic perspective view of a latch mounting unit according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view of one of the stations of the latch mounting unit provided by an embodiment of the present invention;

FIG. 14 is an enlarged partial view of I of FIG. 13;

FIG. 15 is a cross-sectional view of another station of the latch mounting unit provided in accordance with various embodiments of the present invention;

FIG. 16 is an enlarged partial view of II of FIG. 15;

FIG. 17 is a schematic perspective view of a draw tape feed mechanism provided in accordance with an embodiment of the present invention;

figure 18 is a schematic perspective view of a buckle transport mechanism provided in accordance with an embodiment of the present invention;

FIG. 19 is a schematic view of an integrated structure of a push block and a driving block provided in an embodiment of the present invention;

FIG. 20 is a schematic perspective view of an air-packing mechanism provided in accordance with an embodiment of the present invention;

FIG. 21 is a cross-sectional view of an air-packing mechanism provided by an embodiment of the present invention;

FIG. 22 is an enlarged partial view of III of FIG. 21;

fig. 23 is a block diagram of a control module of the system for packaging couriers, according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to fig. 1 to 23:

in order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. In the description of the present invention, expressions indicating orientations such as "upper", "lower", "inner" and "outer" are based on actual usage of the product and general knowledge of those skilled in the art.

As shown in fig. 1 and 5, a logistics box comprises a box body 10 enclosed by a bottom wall and four side walls 11, and a box cover 12 detachably connected with the upper end of the box body 10.

Preferably, the bottom edges of the four side walls 11 of the box body 10 are hinged with the four side edges of the bottom wall, so that each side wall 11 can be turned over towards the surface of the bottom wall, as shown in fig. 7; a limiting portion is arranged between each two adjacent two side walls 11, and the limiting portion is assembled to prevent the two adjacent two side walls 11 from turning in a direction away from the bottom wall when the adjacent edges of the two adjacent two side walls 11 are collinear. Each side wall 11 of the logistics box can be folded towards the surface of the bottom wall, and the folded logistics box is as shown in fig. 7, so that the occupied space is greatly reduced, and the logistics box is convenient to store and transport. The invention provides a reusable logistics box, which can be temporarily stored after a receiver receives express mails and then is uniformly recovered by a logistics company. When dispatching the goods, the logistics company can correspondingly collect a certain deposit or bind the safekeeping obligation of the logistics box with credit investigation systems of some payment software on the market, so as to encourage the user to safekeep the logistics box. The invention can greatly reduce the usage amount of the disposable packaging box in the logistics industry, avoid unnecessary resource waste, effectively reduce the treatment difficulty of express garbage and have positive influence on environmental protection.

Further, a locking mechanism is arranged between the two adjacent side walls 11 and is assembled to be capable of switching between a locking station and an unlocking station, when the locking mechanism is located at the locking station, the locking mechanism can enable the two adjacent side walls 11 to be kept relatively fixed, and when the locking mechanism is located at the unlocking station, the two adjacent side walls 11 can move independently. Locking mechanism can be dead with each part lock when the thing flow box expandes, avoids leading to the thing flow box to warp because exogenic action.

Preferably, as shown in fig. 5 and 6, the limiting portion includes a first U-shaped groove 115 disposed on a side edge of one of the two adjacent side walls 11, and a second U-shaped groove 116 disposed on a side edge of the other side wall 11, a notch of the first U-shaped groove 115 is disposed toward an outer side of the side wall 11 where the first U-shaped groove is located, the second U-shaped groove 116 protrudes inside the side wall 11 where the second U-shaped groove 116 is located, the notch of the second U-shaped groove 116 is disposed toward a middle portion of the side wall 11 where the second U-shaped groove is located along a direction parallel to the side wall 11 where the second U-shaped groove is located, and the first U-shaped groove 115 and the second U-shaped. In this embodiment, two opposite side walls 11 are located inside the other two opposite side walls 11, the first U-shaped groove 115 is disposed on the two inner side walls 11, and the second U-shaped groove 116 is disposed on the other two side walls 11, as shown in fig. 2. When the logistics box is unfolded, the first U-shaped groove 115 and the second U-shaped groove 116 are mutually abutted, so that the unfolding angle of the adjacent side wall 11 can be limited.

Preferably, as shown in fig. 6, the locking mechanism includes an inserting plate 118 disposed in the first U-shaped groove 115, and a slot 117 disposed on a slot wall of the second U-shaped groove 116, the inserting plate 118 and the slot 117 are inserted in a horizontal direction and are in clearance fit with each other, the side wall 11 where the inserting plate 118 and the second U-shaped groove 116 are disposed is provided with locking

ports

119 and 1110 facing each other in a vertical direction, the bottom surface of the case cover 12 is provided with a locking pin 123 engaged with the locking

ports

119 and 1110, and when the case cover 12 covers the case body 10, the locking pin 123 can be just inserted into the locking

ports

119 and 1110 and is blocked with the inserting plate 118. The locking mechanism in the embodiment is associated with the opening and closing state of the box cover 12, and the locking mechanism can be unlocked only when the box cover 12 is detached, so that the stability and the reliability of the structure after the logistics box is packaged are effectively ensured.

Preferably, two opposite side walls 11 of the box body 10 are directly hinged to the bottom wall, so that the box body can be attached to the bottom wall in parallel when the box body is turned over towards the bottom wall, the other two opposite side walls 11 are respectively hinged to two bosses 102 arranged at the edge of the bottom wall, the height of one boss 102 is equal to the thickness of one side wall 11, the height of the other boss 102 is equal to the thickness of the side walls 11 at two sides, the side walls 11 can be prevented from each other when the box body is folded, and the side walls 11 can be attached to each other layer by layer after being folded.

Preferably, the outer side of the lower end of each side wall 11 is a right-angle side, the inner side of the lower end of each side wall 11 is a round angle, and the lower end of each side wall 11 is provided with a sealing strip 112, so that the lower end of each side wall 11 can be tightly attached to the bottom wall when each side wall 11 is unfolded; similarly, the inner side of the top end of each hinged support at the edge of the bottom wall is a round angle, the outer side of each hinged support is a right angle, and the top end of each hinged support is provided with a sealing strip 112, so that the whole sealing performance of the logistics box is ensured.

Further, a disposable locking member is provided between the top surface of each of the side walls 11 and the edge of the cover 12, the locking member is assembled such that the case body 10 and the cover 12 can be separated only when the structure thereof is damaged, and the locking member can be replaced from the inside of the case body 10. Adopt disposable hasp part to connect box 10 and case lid 12, in case open the thing flow box, hardly recover under the condition of not with the help of professional equipment, effectively avoided the express delivery piece by the risk that other people opened in the transportation, improved secret effect.

As shown in fig. 8, 14 and 16, the disposable locking component includes a drawstring 13 and a buckle 15, the buckle 15 includes a plate-shaped body, a strip-shaped hole for the drawstring 13 to pass through is arranged in the middle of the body, at least one end of the strip-shaped hole is provided with an easy-to-tear line 151, and the easy-to-tear line 151 extends from one end of the strip-shaped hole to the edge of the body; two petal type trapezoidal clamping pieces 154 are arranged on two sides of the lower end hole opening of the strip-shaped hole; the two clamping pieces 154 are flexibly connected with the body, and the two clamping pieces 154 are separated towards two sides in a splayed shape in a normal state; the opposite sides of the jaws 154 and the strap face of the strap 13 are provided with complementary barbs that are configured such that when the jaws 154 are clamped together, the clasp 15 can only move downwardly relative to the strap 13 and not upwardly relative to the strap 13.

A circle of pull ring 152 is further arranged on the periphery of the body, the pull ring 152 is coplanar with the body, the pull ring 152 is connected with the outer end of the easy-tear line 151 into a whole, and the pull ring 152 is connected with the periphery of the body through the easy-tear seam; the body rim is provided with an escape slot 153 for a finger to lift the tab 152.

A plurality of perforated holes 122 for the pull tapes 13 to pass through are formed in the edge of the box cover 12 at intervals along the circumferential direction, a trapezoidal counter bore 1221 with a wide upper part and a narrow lower part is formed in the upper end of each perforated hole 122, and when the two trapezoidal clamping pieces 154 are inserted into the counter bores 1221, the two trapezoidal clamping pieces 154 can be folded; the upper end of the side wall of the box body 10 is provided with one-way tensioning mechanisms 14 corresponding to the belt holes 122 one by one, the one-way tensioning mechanisms 14 are assembled so as not to be blocked when the drawstring 13 penetrates into the one-way tensioning mechanisms 14 from top to bottom, and the one-way tensioning mechanisms 14 can clamp the drawstring 13 when the drawstring 13 moves in the one-way tensioning mechanisms 14 from bottom to top.

When the disposable locking component is installed, firstly, the two trapezoidal clamping pieces 154 are in an open state, at this time, the pull belt 13 can freely reciprocate with the strip-shaped hole on the snap ring 15, after the pull belt 13 is fully inserted into the unidirectional tightening mechanism 14, the snap ring 15 is pressed downwards, the two trapezoidal clamping pieces 154 are inserted into the counter bore 1221, at this time, the two trapezoidal clamping pieces 154 are closed, the snap ring 15 can only move downwards relative to the pull belt 13, then, a directional pulling force is applied to the pull belt 13, and the snap ring 15 is pressed downwards, so that the box cover 12 and the box body 10 can be fully compressed. When the tear line 151 on the snap ring 15 is uncovered, the snap ring 15 loses the constraint force on the upper ends of the two trapezoidal clamping pieces 154, and the two trapezoidal clamping pieces 154 can be easily pulled out from the counter bore 1221, so that the pull belt 13 loses the constraint force on the case cover 12 and the case body 10, and the case cover 12 can be easily opened.

Preferably, as shown in fig. 3, the one-way tensioning mechanism 14 includes a trapezoidal slide 141 with a narrow top and a wide bottom, a trapezoidal slider 142 is disposed in the trapezoidal slide 141, the trapezoidal slider 142 is disposed in a reciprocating manner along a vertical direction, a vertical through hole 145 through which the pull tape 13 passes is disposed on the trapezoidal slider 142, and a transverse through hole 143 penetrates through two slope surfaces of the trapezoidal slider 142, two horizontal rollers 144 are disposed in the transverse through hole 143, axes of the two rollers 144 are parallel to the slope surfaces of the trapezoidal slider 142, the two rollers 144 are disposed on two sides of the vertical through hole 145, and a pressure spring 146 is disposed between a bottom surface of the trapezoidal slider 142 and a bottom surface of the trapezoidal slide 141.

Further, the lower end of the trapezoidal slide 141 is connected with a section of guide hole 148, and the guide hole 148 is connected to the inner wall of the container body 10 in a downward and oblique and smooth manner, so that the pull belt 13 can be conveniently taken out of the unidirectional garbage mechanism after the logistics container is opened.

Preferably, the upper end of the trapezoidal slide rail 141 is further connected with a section of rectangular slide rail 146, the upper end of the trapezoidal slide block 142 is provided with a guide block 147 which forms a sliding fit with the rectangular slide rail 146, and the trapezoidal slide block 142 can be ensured to slide along the vertical direction all the time by the cooperation of the rectangular slide rail 146 and the guide block 147.

Furthermore, inflatable air bags 101 are arranged on at least three adjacent inner walls in the logistics box, an inflation inlet 111 which penetrates through the outer wall and is communicated with the inner cavity of the air bag 101 is arranged on the outer wall of the logistics box, an air pressure sensor is arranged inside the air bag 101, and a signal output interface of the air pressure sensor is arranged on the outer wall of the logistics box. Through the detection to gasbag 101 atmospheric pressure, can ensure that gasbag 101 fully compresses tightly the express delivery piece, avoid the express delivery piece to produce in the transportation and rock, effectively improved the safeguard effect to the express delivery piece.

Preferably, as shown in fig. 4, the bottom surface of the box cover 12 is provided with air bags 101, the air bags 101 in the box body 10 are communicated with each other, a branch air passage 114 is arranged inside the side wall 11 where the inflation port 111 is located, one end of the branch air passage 114 is communicated with the inflation port 111, and the other end is communicated to the upper end of the side wall 11, an air passage 121 for supplying air to the air bags 101 on the bottom surface of the box cover 12 is arranged in the box cover 12, an air inlet of the air passage 121 is located at the edge of the bottom surface of the box cover 12 and is arranged opposite to the upper end of the branch air passage 114, when the box cover 12 is fastened with the box body 10, the air passage 121 can be joined with the branch air passage 114, and a sealing ring 115 is arranged at a seam between the air passage 121 and the branch air passage 114, in a specific implementation process, the air inlet. When the box cover 12 is separated from the box body 10, the branch air passage 114 is synchronously separated from the air passage 121, and the quick exhaust of the upper and lower airbags 101 can be realized. Because the air bag is decompressed after the box cover 12 is disassembled, if the logistics box is opened halfway by a person, the air bag is difficult to recover again without special equipment, and the confidentiality of the logistics box is further improved. It should be particularly noted that the principle of the invention for improving the security of the logistics box is as follows: if the logistics box is opened midway, the logistics box can be easily known by a receiver, but not the logistics box has strong damage resistance, theoretically, the damage resistance can be damaged even if the logistics box is stronger, and therefore, the consideration of the confidentiality of the logistics box from the aspect of damage resistance is not significant.

A one-way valve 113 is arranged in the inflation port 111, and the one-way valve 113 is set to only allow air to enter the air bag 101 and not exhaust the air bag 101. The inner sides of four side walls 11 of the box body 10 are respectively provided with an air bag 101, the air bags 101 are communicated with each other to form a ring, two opposite air bags 101 are connected with the side wall 11 where the two opposite air bags 101 are respectively located, and the other two opposite air bags 101 and the side wall 11 where the two opposite air bags are respectively located are of a separated structure.

As shown in fig. 9-22, the present invention further provides a system for packaging a courier by using the above-mentioned logistics boxes, which includes a box cover distribution mechanism 20, a box cover conveying mechanism 30, a box conveying mechanism 50, a box cover transfer mechanism 40, a box cover locking mechanism 60, and an air filling mechanism 70; the box cover distributing mechanism 20 is used for distributing the box covers 12 in a stacking state one by one onto the box cover conveying mechanism 30, the box cover conveying mechanism 30 is used for conveying the box covers 12 to the box cover transferring mechanism 40 from the box cover distributing mechanism 20, the box cover transferring mechanism 40 is used for transferring the box covers 12 to the upper end of the box body 10 from the box cover conveying mechanism 30 in a buckling mode, the box cover locking mechanism 60 is used for adding a disposable locking component between the box covers 12 and the box body 10 to enable the box covers 12 to be locked with the box body 10, the air filling mechanism 70 is used for inflating the air bags in the box body 10, and the box body conveying mechanism 50 is used for conveying the box body 10 to enable the box body 10 to sequentially pass through the box cover transferring mechanism 40, the box cover locking mechanism 60 and the. The packaging system is automatically controlled by the electric control system, and can perform full-automatic rapid packaging operation on the novel logistics box, so that the packaging efficiency of the logistics box and the safety and the security of express delivery are greatly improved.

Preferably, as shown in fig. 10, the box cover distributing mechanism 20 includes a distributing rod 21 vertically and rotatably disposed, the distributing rod 21 is disposed at least on two opposite sides of the box cover 12, two dragging plates 22 are disposed at intervals along a vertical direction at a lower end of the distributing rod 21, a vertical distance between the two dragging plates 22 is greater than a thickness of a single box cover 12, the two dragging plates 22 are respectively protruded toward one side of the distributing rod 21 along a radial direction of the distributing rod 21, and the two dragging plates 22 are symmetrically disposed about a center of the distributing rod 21 when viewed along the vertical direction. The dragging plate 22 is of a fan-shaped structure, and the vertex angle of the fan shape is larger than 180 degrees. The two fan-shaped dragging plates 22 can alternatively rotate to the lower side of the box cover 12, and when the box cover 12 at the lowest layer is blanked, the upper layer dragging plate 22 just can hold more box covers 12 at the next lower layer, so that intermittent blanking of the box covers 12 one by one is realized.

Preferably, the box cover conveying mechanism 30 includes a first conveying belt 31 horizontally arranged, a feeding end of the first conveying belt 31 is located below the box cover distribution mechanism 20, and a discharging end of the first conveying belt 31 is located beside the box cover transfer mechanism 40; the discharge end of the first conveying belt 31 is further provided with a first limiting block 32, the first limiting block 32 is located above the belt surface of the first conveying belt 31, the first limiting block 32 is shielded on a conveying path of the box cover 12, two first push rods 33 which are oppositely opened and closed are further arranged on two sides of the first limiting block 32, the length direction of each first push rod 33 is parallel to the length direction of the first conveying belt 31, and the opening and closing directions of the two first push rods 33 are parallel to the width direction of the first conveying belt 31. The first limit block 32 is used for limiting the position of the box cover 12 in the length direction of the conveying belt, and one of the first push rods 33 can right the box cover 12, so that the box cover 12 can be accurately grabbed and buckled on the box body 10 when the box cover transfer mechanism 40 transfers the box cover 12.

Preferably, as shown in fig. 9, the box cover transfer mechanism 40 includes a mechanical arm, a suction cup type mechanical arm is provided at the front end of the mechanical arm, the mechanical arm is a relatively mature product in the prior art, and the transfer of the box cover 12 from the second conveying belt to the box body 10 can be realized by computer programming in cooperation with the suction cup type mechanical arm.

Preferably, as shown in fig. 11, the box cover locking mechanism 60 includes a pressing plate 61 disposed to reciprocate in a vertical direction, the pressing plate 61 is provided with latch mounting units 62 corresponding to the respective belt holes 122 of the box cover 12 one by one, and the latch mounting units 62 are configured to sequentially penetrate the pulling belt 13 into the belt holes 122 and the one-way tensioning mechanism 14, and to sleeve the retaining ring 15 on the pulling belt 13 and to press the box cover 12.

As shown in fig. 12-19, the latch mounting unit 62 includes a strap feeding mechanism and a buckle feeding mechanism; the drawstring feeding mechanism comprises a material discharging coil 621 which is rotatably arranged on a support along a horizontal axis, and a pair of conveying rollers 622 which are arranged below the material discharging coil 621, wherein the axis of the conveying roller 622 is parallel to the axis of the material discharging coil 621, a guide cylinder 628 is arranged below the conveying roller 622, the guide cylinder 628 is in a trapezoidal structure with a wide upper part and a narrow lower part, and the lower end of the guide cylinder 628 is arranged opposite to a hole 122 on the box cover 12; a cutting mechanism 624 for cutting the draw tape 13 is arranged between the conveying roller 622 and the guide cylinder 628; the retaining ring feeding mechanism comprises a horizontal slide 634, one end of the slide 634 is provided with an orifice 636 which penetrates downwards to the bottom surface of the pressure plate 61, the other end of the slide 634 is provided with a retaining ring distributing mechanism, the retaining ring distributing mechanism is assembled to enable retaining rings 15 to fall into the slide 634 one by one, a push block 632 is arranged in the slide 634 and reciprocates along the length direction of the slide 634, the push block 632 is assembled to push the retaining rings 15 to the orifice 636 from the lower part of the retaining ring distributing mechanism, the orifice 636 is further provided with a pressing mechanism, and the pressing mechanism is assembled to press the retaining rings 15 in the orifices 636 into the orifice until the retaining rings 15 are flush with the bottom surface of the pressure plate 636.

Preferably, the roll surface of at least one of the conveying rollers 622 is provided with inverted teeth matching the surface of the draw tape 13. A ring groove 6221 is arranged on the roller surface of one of the conveying rollers 622, the width of the ring groove 6221 is equal to that of the pull belt 13, and the depth of the ring groove 6221 is equal to that of the pull belt 13; the other transport roller 622 has a width equal to the width of the ring groove 6221 and the transport roller 622 is disposed opposite to the ring groove 6221. One of the feed rollers 622 is driven by a first servo motor 626, and the end of the feed roller 622 remote from the first servo motor 626 is in counter-synchronous rotational engagement with the other feed roller 622 via a pair of intermeshing gears 623. The material placing coil 621 is detachably connected with the bracket.

Preferably, as shown in fig. 17, the shearing mechanism 624 includes a fixed blade 6241 and a movable blade 6242, the fixed blade 6241 is fixedly connected to the bracket through a cross beam, and the movable blade 6242 is movably connected to the bracket and forms a shearing fit with the fixed blade 6241. Preferably, one end of the movable blade 6242 is hinged to the bracket, the other end of the movable blade 6242 is provided with a first kidney-shaped hole 6243, the movable blade 6242 is in sliding hinged fit with a first rocker 6244 through the first kidney-shaped hole 6243, and the other end of the first rocker 6244 is in synchronous rotating fit with the spindle of the second servo motor 627.

As shown in fig. 18, buckle feed mechanism includes a storage rack, the storage rack includes vertical pole 631 of wearing, buckle 15 is through dodging hole 153 and bar hole suit on pole 631, it has mounting bracket 630 to wear pole 631 upper end even, mounting bracket 630 overlap joint makes pole 631 bottom be in unsettled state on a supporting part, and wears pole 631 bottom to the thickness that the interval of slide 634 bottom surface equals a buckle 15, offer on the slide 634 and be used for dodging clip 154 dodge groove 635, be detachable connection between mounting bracket 630 and the supporting part.

The two sides of the slideway 634 are provided with a limiting groove 637, a notch of the limiting groove 637 is arranged towards the center of the slideway 634 along the horizontal direction, two sides of the push block 632 are inserted into the limiting groove 637, one end of the push block 632 far away from the retaining ring 15 is provided with a second kidney-shaped hole 6321, the length direction of the second kidney-shaped hole 6321 is perpendicular to the sliding direction of the push block 632, the push block 632 forms a sliding hinged fit with the second rocking bar 633 through the second kidney-shaped hole 6321, and the second rocking bar 633 is synchronously and rotatably connected with a main shaft of the third servo motor 625.

As shown in fig. 14 and 16, the pressing mechanism includes a driving block 629 slidably disposed in the slideway 634, the driving block 629 includes two protrusions protruding toward the direction of the pushing block 632, the two protrusions are spaced from each other and disposed on two sides of the pulling strip 13, and the bottom edge of the side of the protrusion opposite to the pushing block 632 is provided with a chamfer; two sides of the driving block 629 are inserted into the limit groove 637, and two sides of the driving block 629 are fixedly connected with the pushing block 632 through two connecting parts, as shown in fig. 19. The bottom of the push block 632 is further provided with a support and pull portion 6322 capable of extending to the lower side of the buckle ring 15, and when the push block 632 pushes the buckle ring 15 to the opening 636, the support and pull portion 6322 can temporarily support the buckle ring 15.

As shown in fig. 20 to 22, the air charging mechanism 70 includes an air charging connector 71 disposed to reciprocate in a horizontal direction, and a case clamping device including a first clamp 731 and a second clamp 732 disposed to be opened and closed with respect to each other with the case 10 as a center at both sides of the case 10.

As shown in fig. 21, the first clamping plate 731 and the second clamping plate 732 are slidably disposed on the frame through a horizontal guide post 75, a compression spring is disposed on each guide post 75 between the first clamping plate 731 and the frame and between the second clamping plate 732 and the frame, a radial flange 751 is disposed on one end of the guide post 75 away from the first clamping plate 731 and the second clamping plate 732, and the radial flange 751 is in contact with the frame; the frame is provided with a driving unit for driving the first clamp plate 731 to reciprocate.

As shown in fig. 21 and 22, a quick sealing device is disposed on the inflation connector 71, the quick sealing device includes a movable sleeve 72 disposed at a front end of the inflation connector 71 and sliding in an axial direction with respect to the inflation connector 71, a press ring 721 protruding radially inward is disposed at a front end of the movable sleeve 72, the press ring 721 is spaced from an end surface of the inflation connector 71, a seal ring made of an elastic material is disposed between the press ring 721 and the end surface of the inflation connector 71, a retainer 722 is disposed on an outer circumferential surface of the movable sleeve 72, a through hole for the inflation connector 71 to pass through is disposed on the first clamp plate 731, and the retainer 722 is in contact with an opening 636 of the through hole.

Preferably, the inflation connector 71 is communicated with an air source through a section of hose 76, a pressure gauge is arranged on a pipeline, and the inflation connector 71 is installed at the top end of a piston rod 741 of the horizontally arranged first air cylinder 74; a baffle 752 is disposed at an end of each guide post 75 of the first clamp plate 731, which is away from the first clamp plate 731, the baffle 752 is provided with a through hole for a piston rod 741 of the first cylinder 74 to pass through, the piston rod 741 of the first cylinder 74 is provided with a convex ring 742, and the convex ring 742 is blocked by the baffle 752 so that the first clamp plate 731 can be driven to be away from the box 10 when the first cylinder 74 contracts.

During inflation, a piston rod 741 of the first air cylinder 74 is ejected, at this time, the first clamping plate 731 is firstly contacted with a side wall of the box body 10 under the action of a pressure spring, the other side of the box body 10 is attached to the second clamping plate 732 under the action of the first clamping plate 731, the inflation connector 71 is sleeved on an inflation port of the box body 10 along with continuous extension of the piston rod 741, then the retainer ring 722 on the movable sleeve 72 is abutted to the first clamping plate 731, at this time, the radial flange 751 on the guide post 731 of the first clamping plate 731 is just abutted to the rack, so that the position of the first clamping plate 731 is locked, and along with continuous extension of the piston rod 741, the inflation connector 71 starts to compress the sealing ring, so that the sealing ring is deformed to clamp and seal an outer pipe wall.

As shown in fig. 9, the box conveying mechanism 50 includes a second conveying belt 54, a first movable stopper 51 and a second movable stopper 52 are provided on a path of the second conveying belt 54, the first movable stopper 51 and the second movable stopper 52 are both mounted to be capable of being blocked on and removed from a conveying path of the box 10, and the box 10 is just opposite to the box cover locking mechanism 60 when the box 10 is blocked by the first movable stopper 51, and the box 10 is just opposite to the air-packing mechanism 70 when the box 10 is blocked by the second movable stopper 52.

The second conveying belt 54 comprises at least two belt bodies arranged in parallel at intervals, the first movable stopper 51 and the second movable stopper 52 are both hinged between the two belt bodies, and the first movable stopper 51 and the second movable stopper 52 are respectively driven by cylinders, so that the first movable stopper 51 and the second movable stopper 52 can be switched between a vertical station and a horizontal station, when the first movable stopper 51 and the second movable stopper 52 are in the vertical station, the first movable stopper 51 and the second movable stopper 52 can protrude above the belt surface of the second conveying belt 54, and when the first movable stopper 51 and the second movable stopper 52 are in the horizontal station, the first movable stopper 51 and the second movable stopper 52 can retract below the belt surface of the second conveying belt 54.

Two sides of the corresponding position of the second conveyor belt 54 and the box cover locking mechanism 60 are provided with second push rods 53 which are opened and closed along the width direction of the second conveyor belt 54, the second push rods 53 are long strips, and the length direction of the second push rods 53 is parallel to the length direction of the second conveyor belt 54. The second push rod 53 is used to right the housing 10 to ensure that each latch mounting unit 62 is aligned with each aperture 122 in the lid 12.

The control method of the express delivery packaging system comprises the following steps:

a first position sensor is arranged on the box cover conveying mechanism 30 and used for detecting whether the box cover 12 reaches a first limit block 32; a second position sensor and a third position sensor are arranged on the box body conveying mechanism 50 and are used for respectively detecting whether the box body 10 reaches a first movable stop 51 and a second movable stop 52; the signal output ends of the first position sensor, the second position sensor and the third position sensor are electrically connected with an automatic controller, and the automatic controller is electrically connected with the box cover distributing mechanism 20, the box cover transferring mechanism 40, the box cover locking mechanism 60, the air filling mechanism 70 and the driving elements of the first movable stop 51 and the second movable stop 52;

the automatic controller controls the actions of the box cover distributing mechanism 20, the box cover transferring mechanism 40, the box cover locking mechanism 60 and the air filling mechanism 70 according to the detection signals of the first position sensor, the second position sensor and the third position sensor, and the automatic controller specifically comprises:

feeding circulation of the box cover 12: the automatic controller firstly controls the action of the box cover distributing mechanism 20 to enable the box cover distributing mechanism 20 to apply one box cover 12 to the box cover conveying mechanism 30, when the first position sensor detects that the box cover 12 reaches the first limiting block 32, the automatic controller controls the action of a driving element of the first push rod 33 to drive the first push rod 33 to clamp the box cover 12 firstly and then separate, then the automatic controller controls the action of the box cover transferring mechanism 40 to enable the box cover transferring mechanism 40 to buckle the box cover 12 on the box body 10, and simultaneously the automatic controller controls the action of the box cover distributing mechanism 20 again to realize the continuous feeding of the box cover 12 in a circulating mode;

case lid 12 locking cycle: initially, the first movable stopper 51 is in a vertical state, and when the second position sensor detects that the box body 10 abuts against the first movable stopper 51, the automatic controller controls the driving element of the pressing plate 61 to act, so that the pressing plate 61 descends to be attached to the top surface of the box cover 12; then the automatic controller controls the third servo motor 625 to act, so that the push block 632 pushes one snap ring 15 to the opening 636, then the first servo motor 626 acts, the pull belt 13 is driven to sequentially pass through the snap ring 15, the belt hole 122 on the box cover 12 and the one-way tensioning mechanism 14 on the box body 10, then the automatic controller controls the third servo motor 625 to act again, so that the push block 632 is reset, the drive block 629 slides to the position of the snap ring 15, the snap ring 15 is pressed into the opening 636 under the action of the chamfer angle of the drive block, and simultaneously the two clamping pieces 154 are inserted into the counter bores of the box cover 12, so that the two clamping pieces 154 are clamped; then the automatic controller controls the first servo motor 626 to reversely rotate for 15-20 degrees to tension the pull belt 13; then the automatic controller controls the second servo motor 627 to act, so that the cutting mechanism 624 cuts the drawstring 13; finally, the automatic controller controls the driving element of the pressing plate 61 to act, so that the pressing plate 61 moves upwards and resets; meanwhile, the driving element of the first movable stop block 51 is controlled to act, so that the first movable stop block 51 is switched to a horizontal station, the box body 10 is conveyed along with the second conveying belt 54, and when the second position sensor detects that the box body 10 completely passes through the first movable stop block 51, the automatic controller controls the driving element of the first movable stop block 51 to act again, so that the first movable stop block 51 is switched to a vertical station; the process is circulated to realize the continuous locking of the box cover 12;

air filling circulation: initially, the second movable stopper 52 is in a vertical state, when the third position sensor detects that the tank 10 abuts against the second movable stopper 52, the automatic controller controls the action of the electromagnetic control valve of the first cylinder 74, so that the piston rod 741 of the first cylinder 74 extends out, and in the process that the piston rod 741 of the first cylinder 74 extends out, the first clamp plate 731 first contacts with the side wall of the tank 10, the other side of the tank 10 is attached to the second clamp plate 732 under the pushing of the first clamp plate 731, and as the piston rod 741 continues to extend, the retainer ring 722 of the movable sleeve 72 abuts against the first clamp plate 731 first, then the radial flange 751 of the guide post 75 on the first clamp plate 731 just abuts against the rack, then the press ring 721 at the front end of the movable sleeve 72 starts to compress the seal ring, and the seal ring protrudes towards the inner side of the inflation connector 71 after being pressed, so as to tightly attach to the outer annular surface; then the automatic controller controls the valve on the air supply pipeline to be opened, the air bag in the box body 10 starts to be inflated, when the pressure gauge detects that the air pressure reaches a preset value, the automatic controller controls the valve on the air supply pipeline to be closed, and then the piston rod 741 of the first air cylinder 74 is controlled to retract and reset; finally, the automatic controller controls the action of the driving element of the second movable stop block 52 to switch the second movable stop block 52 to the horizontal station, the box body 10 continues to descend along with the second conveying belt 54, and when the third position sensor detects that the box body 10 completely passes through the second movable stop block 52, the automatic controller controls the action of the driving element of the second movable stop block 52 again to switch the second movable stop block 52 to the vertical station; the process is circulated to realize the automatic inflation of the air bag in the box body 10.

Claims

1. The mounting device of the disposable locking part comprises a pull belt (13) and a retaining ring (15), wherein the retaining ring (15) comprises a plate-shaped body, the middle part of the body is provided with a strip-shaped hole for the pull belt (13) to pass through, at least one end of the strip-shaped hole is provided with an easily torn line, and the easily torn line extends from one end of the strip-shaped hole to the edge of the body; two trapezoidal clamping pieces (154) are respectively arranged on two sides of a lower end hole opening (636) of the strip-shaped hole, and the two clamping pieces (154) form a two-petal structure; the two clamping pieces (154) are flexibly connected with the body, and the two clamping pieces (154) are separated towards two sides in a splayed shape in a normal state; the side, opposite to the two clamping pieces (154), of the drawstring (13) and the band surface of the drawstring (13) are provided with inverted teeth, the inverted teeth on the two clamping pieces (154) are respectively matched with the inverted teeth on the band surfaces on the two sides of the drawstring (13), and the inverted teeth are set in a way that when the two clamping pieces (154) are clamped, the drawstring (13) can only move upwards relative to the buckle ring (15) but can not move downwards relative to the buckle ring (15); a circle of pull ring is arranged around the body, the pull ring is coplanar with the body, the pull ring is connected with the outer end of the easy-tearing line into a whole, and the pull ring is connected with the periphery of the body through the easy-tearing seam; the edge of the body is provided with an avoidance groove (635) so that the pull ring can be lifted by fingers;

the method is characterized in that: comprises a drawstring feeding mechanism and a retaining ring feeding mechanism; the draw tape feeding mechanism comprises a material discharging coil (621) which is rotatably arranged on a support along a horizontal axis, and a pair of conveying rollers (622) which are arranged below the material discharging coil (621), wherein the axis of the conveying roller (622) is parallel to the axis of the material discharging coil (621), a guide cylinder (628) is arranged below the conveying roller (622), and the guide cylinder (628) is of a trapezoidal structure with a wide upper part and a narrow lower part; a cutting mechanism (624) for cutting the pull belt (13) is arranged between the conveying roller (622) and the guide cylinder (628); the buckle feeding mechanism comprises a horizontal slide way (634) arranged on a bottom plate, one end of the slide way (634) is provided with an orifice (636) penetrating downwards to the bottom surface of the bottom plate, the other end of the slide way (634) is provided with a buckle distributing mechanism, the buckle distributing mechanism is assembled to enable buckles (15) to fall into the slide way (634) one by one, a push block (632) is arranged in the slide way (634), the push block (632) is arranged in a reciprocating mode along the length direction of the slide way (634), the push block (632) is assembled to push the buckles (15) to the orifice (636) from the lower side of the buckle distributing mechanism, a pressing mechanism is further arranged at the orifice (636), and the pressing mechanism is assembled to enable the buckles (15) at the orifice (636) to be pressed into the orifice (636) until the buckles (15) are flush with the bottom surface of the bottom plate;

two sides of the slide rail (634) are provided with limiting grooves (637), notches of the limiting grooves (637) are arranged towards the center of the slide rail (634) along the horizontal direction, two sides of the push block (632) are inserted into the limiting grooves (637), one end, far away from the retaining ring (15), of the push block (632) is provided with a second kidney-shaped hole (6321), the length direction of the second kidney-shaped hole (6321) is perpendicular to the sliding direction of the push block (632), the push block (632) forms sliding hinge fit with a second rocker (633) through the second kidney-shaped hole (6321), and the second rocker (633) is synchronously and rotatably connected with a main shaft of a third servo motor (625);

the pressing mechanism comprises a driving block (629) which is arranged in a slide rail (634) in a sliding mode, the driving block (629) comprises two convex blocks which protrude and extend in the direction of the push block (632), the two convex blocks are arranged at intervals and are respectively arranged on two sides of the pull belt (13), and the bottom edge of one side, opposite to the push block (632), of each convex block is provided with a chamfer; two sides of the driving block (629) are inserted into the limit groove (637), and two sides of the driving block (629) are fixedly connected with the push block (632) through two connecting parts.

2. The mounting device of claim 1, wherein: the roll surface of at least one of the conveying rolls (622) is provided with inverted teeth matched with the surface of the pull belt (13); an annular groove (6221) is arranged on the roller surface of one of the conveying rollers (622), the width of the annular groove (6221) is equal to that of the pull belt (13), and the depth of the annular groove (6221) is equal to that of the pull belt (13); the width of the other conveying roller (622) is equal to the width of the annular groove (6221), and the other conveying roller (622) is arranged right opposite to the annular groove (6221); one of the feed rollers (622) is driven by a first servo motor (626), and the end of the feed roller (622) remote from the first servo motor (626) is in counter-synchronous rotational engagement with the other feed roller (622) via a pair of intermeshing gears (623).

3. The mounting device of claim 1, wherein: the material placing coil (621) is detachably connected with the bracket.

4. The mounting device of claim 1, wherein: the shearing mechanism (624) comprises a fixed blade (6241) and a movable blade (6242), the fixed blade (6241) is fixedly connected with the bracket through a cross beam, and the movable blade (6242) is movably connected with the bracket and forms shearing fit with the fixed blade (6241).

5. The mounting device of claim 4, wherein: one end of the movable blade (6242) is hinged to the support, a first waist-shaped hole (6243) is formed in the other end of the movable blade (6242), the movable blade (6242) and the first rocker (6244) form sliding hinged fit through the first waist-shaped hole (6243), and the other end of the first rocker (6244) and the main shaft of the second servo motor (627) form synchronous rotating fit.

6. The mounting device of claim 1, wherein: the buckle feed mechanism includes a storage frame, the storage frame includes vertical pole (631) of wearing, buckle (15) are through dodging hole (153) and bar hole suit on wearing pole (631), it even has mounting bracket (630) to wear pole (631) upper end, mounting bracket (630) overlap joint makes pole (631) bottom be in unsettled state on a supporting part, and wears pole (631) bottom to the thickness that the interval of slide (634) bottom surface equals a buckle (15), seted up on slide (634) and be used for dodging groove (635) are dodged to clamping piece (154), be detachable connection between mounting bracket (630) and the supporting part.