Automatic conveying mechanism for packaging boxes

Abstract

An automatic conveying mechanism for packaging boxes, comprising: a spring-clip type box discharging mechanism, the spring-clip type box discharging mechanism being provided with a structure that expands when inflated and shrinks when deflated, and the structure being used for clamping or releasing a packaging box (9); an air jet mechanism, which is used for jetting air to clean the packaging box; a box pushing mechanism, which is used for pushing out packaging boxes in the spring-clip type box discharging mechanism one by one, a second air cavity (21) being provided in the box pushing mechanism, the second air cavity being connected to the air jet mechanism and the spring-clip type box discharging mechanism by means of a first air supply tube (12) and a second air supply tube (16), respectively, for ventilation, and the second air cavity being connected to an air supply device by means of an air supply main pipe (19); and an extrusion mechanism, which is provided in the second air cavity, the box pushing mechanism performing a box pushing action to extrude the extrusion mechanism, and the extrusion mechanism being capable of, according to different pressed states, blocking an end of the first air supply tube or second air supply tube leading into the second air cavity. According to the automatic conveying mechanism for packaging boxes, the wear to packaging boxes can be reduced in the conveying process while the packaging boxes can be prevented from shifting.

Description

Automatic transport mechanism for packaging boxes Technical Field

[0001] The present invention relates to the technical field of packaging box transmission, in particular to an automatic packaging box transmission mechanism. Background Art

[0002] The box discharging mechanism of the present invention is generally used for conveying packaging boxes, that is, a plurality of packaging boxes are stacked into a pile and placed in the box discharging mechanism of the present invention, and then the packaging box at the bottom is pushed out with the help of the pushing part of the reciprocating pushing mechanism. After the packaging box at the bottom is pushed out and the pushing part retracts, the stacked packaging boxes will move downward with gravity to fill the vacant position of the previous packaging box. At this time, the next packaging box can be pushed out again with the help of the reciprocating pushing mechanism, thereby realizing the packaging boxes being discharged one by one. However, when the pushing part of the traditional box discharging mechanism is inserted or removed, the packaging box above the pushing part is not limited and fixed, resulting in the pushing part bearing the huge weight from the packaging box above it, thereby causing the pushing part to generate huge friction with the packaging box above it when it is active, which can easily cause wear to the packaging box on the one hand, and on the other hand, such intense contact between the pushing part and the packaging box can easily cause the packaging box to deviate, thereby causing the box to be stuck. Therefore, a new automatic packaging box conveying mechanism is needed on the market to solve the problems existing in the prior art. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automatic packaging box transmission mechanism, which can effectively reduce the wear of the packaging box during the transmission process and prevent the packaging box from being offset.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: an automatic packaging box transmission mechanism, comprising:

[0005] A clip-type box ejection mechanism, which is equipped with an inflation and deflation structure for clamping or releasing the packaging box;

[0006] An air jet mechanism, which is used to jet clean the packaging box;

[0007] a box-pushing mechanism, which is used to push out the packaging boxes in the clip-type box-discharging mechanism one by one, and is provided with a second air cavity therein, and the second air cavity is connected to the air-injecting mechanism and the clip-type box-discharging mechanism via a first air supply pipe and a second air supply pipe, respectively, for ventilation, and the second air cavity is also connected to an air supply device via an air supply main pipe;

[0008] The squeezing mechanism is arranged in the second air cavity. The pushing activity of the pushing mechanism will squeeze the squeezing mechanism. The squeezing mechanism can block one end of the first air supply pipe or the second air supply pipe entering the second air cavity according to different pressure states.

[0009] In some embodiments, the clip-type box ejection mechanism includes two side panels, and a plurality of packaging boxes are stacked and placed between the two side panels;

[0010] The inflation and deflation structure is provided on the side panel, and includes a first air cavity provided in the side panel, an opening provided in the first air cavity on a side close to the packaging box, and an elastic sealing strip sealed on the opening;

[0011] The second air supply pipe leads into the first air cavity.

[0012] In some embodiments, the openings are strip-shaped and there are multiple strips, forming a grid shape as a whole, and the elastic sealing strips are sealed and arranged on each of the openings in a one-to-one correspondence.

[0013] In some embodiments, the opening is an upwardly inclined opening, and the angle between the inclined direction and the horizontal direction is 30° to 60°.

[0014] In some embodiments, the jet mechanism includes a hollow plate and a plurality of nozzles disposed on the hollow plate and connected to the hollow plate;

[0015] The first air supply pipe leads into the hollow plate.

[0016] In some embodiments, the system further comprises a lower box track and a transfer mechanism, wherein the lower box track is used to receive and transfer a fully loaded packaging box, and the transfer mechanism is used to receive a packaging box from the clip-type box discharging mechanism, complete the loading of the packaging box thereon, and transfer the fully loaded packaging box to the lower box track;

[0017] The transfer mechanism includes a first electric telescopic member, a transmission member, a receiving tray, a second electric telescopic member and a guide rail. One end of the transmission member is connected to the power output end of the first electric telescopic member, and the other end is connected to the receiving tray. The first electric telescopic member can drive the receiving tray to reciprocate along the guide rail through the transmission member. On the reciprocating motion path, the receiving tray can receive the packaging box from the clip-type box ejecting mechanism, and can also push the packaging box from the receiving tray to the lower box track through the second electric telescopic member.

[0018] In some embodiments, the box pushing mechanism includes a box pushing track and a pushing plate, and the pushing plate can reciprocate along the box pushing track and move in and out between the two side plates through a third electric telescopic member;

[0019] A groove is provided on the push box track, and a protrusion and an embedding block are provided on the push plate. The embedding block is movably embedded in the groove, and a through hole is provided in the groove to pass through the second air cavity. The extrusion mechanism extends into the groove through the through hole and elastically extrudes and cooperates with the embedding block.

[0020] In some embodiments, the extrusion mechanism includes an extrusion block and a blocking block integrally arranged together, and also includes elastic parts on both sides of the blocking block. The extrusion block is used to directly contact and extrude with the embedded block, and the blocking block is used to block the first air supply pipe or the second air supply pipe. The elastic part is used to elastically connect the blocking block to the inner wall of the second air cavity.

[0021] In some embodiments, the contact surface of the extrusion block and the embedding block for extrusion fit is an arc surface.

[0022] In some embodiments, a press-type air release valve is provided on the second air supply pipe. When the push plate retracts to its maximum stroke, the protrusion will squeeze the press-type air release valve and at this time the embedded block and the squeezing mechanism will not contact each other. When the squeezing mechanism is pressurized, it will only block the first air supply pipe. When the squeezing mechanism is not pressurized, it will only block the second air supply pipe. When the push plate is pushed outward to its maximum stroke, the embedded block will just break away from the squeezing mechanism.

[0023] In summary, the present invention has the following beneficial effects:

[0024] This automatic packaging box transmission mechanism pushes the packaging box from the clip-type box discharging mechanism through the box pushing mechanism. During this period, as the box pushing mechanism moves, the first air cavity in the side plate of the clip-type box discharging mechanism will be inflated, so that the elastic sealing strip at the opening of the first air cavity will bulge toward the packaging box, thereby achieving clamping and fixing of the packaging box. When the box pushing mechanism is pushed into place, the first air cavity will stop being inflated, and the air-jet mechanism will be inflated at this time, so that it can realize air jetting toward the material filling station on the transfer mechanism. At this time, since the packaging box has been completely pushed to the material filling station, the air jet cleaning of the packaging box is achieved in this way. When the box pushing mechanism is retracted into place, the box pushing mechanism will trigger the air-deflation component to deflate the gas in the first air cavity, so that the elastic sealing strip at the opening of the first air cavity will bulge The box is then repositioned so that the stack of boxes can be moved downwards with gravity to fill the empty space of the previous box. The above steps can be repeated to push the box out again. In the above process, the boxes to be ejected are clamped, fixed and released through repeated and regular inflation and deflation. This can prevent the boxes to be ejected from being completely pressed on the pushing components of the box pushing mechanism, and can also put down the upper boxes in time after the bottom box is pushed out. The whole process can effectively reduce the wear of the boxes during transportation and avoid the deviation of the boxes. In addition, the degree of automation is high, and the boxes are not easily stuck during transportation, which ensures the efficient transportation of the boxes and realizes the automatic cleaning of the boxes during the box ejection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is an overall structural diagram of the present invention (viewing angle 1);

[0026] FIG2 is an overall structural diagram of the present invention (viewing angle 2);

[0027] FIG3 is an overall structural diagram of the present invention (viewing angle 3);

[0028] FIG4 is a top view of the box pushing mechanism of the present invention;

[0029] FIG5 is an exploded view of the box pushing mechanism of the present invention;

[0030] FIG6 is a schematic cross-sectional view (partial) of the section AA of FIG5 when the extrusion mechanism is extruded;

[0031] FIG7 is a schematic cross-sectional view (partial) of the section AA of FIG5 when the squeezing mechanism is not squeezed;

[0032] FIG8 is a schematic cross-sectional view (partial) of the section AA of FIG5 when the extrusion mechanism is removed;

[0033] FIG9 is an overall structural diagram of the extrusion mechanism of the present invention;

[0034] FIG10 is a perspective view (wider side) of a side panel of the present invention;

[0035] FIG11 is a perspective view (narrower side) of the side panel of the present invention;

[0036] FIG12 is a partial cross-sectional view of a portion BB in FIG11 when the first air cavity is not inflated;

[0037] FIG13 is an enlarged view of point C in FIG12 ;

[0038] FIG14 is a partial cross-sectional view of the section BB in FIG11 when the first air cavity is inflated;

[0039] FIG. 15 is an enlarged view of point D in FIG. 14 .

[0040] In the figure: 1. first electric telescopic member; 2. transmission member; 3. holding tray; 4. second electric telescopic member; 5. guide rail; 6. lower box track; 7. side panel; 701. first air cavity; 702. opening; 703. elastic blocking strip; 8. limit plate; 9. packaging box; 10. hollow plate; 11. nozzle; 12. first air supply pipe; 13. box push track; 1301. groove; 1302. through-opening; 14. third electric telescopic member; 15. push plate; 1501. convex block; 1502. embedded block; 16. second air supply pipe; 1601. push-type air release valve; 17. placement rack; 18. air supply equipment; 19. air supply main pipe; 20. extrusion mechanism; 2001. extrusion block; 2002. blocking block; 2003. convex strip; 2004. elastic member; 21. second air cavity. Implementation Method

[0041] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0044] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] A packaging box automatic transmission mechanism, as shown in Figures 1-3, includes a clip-type box discharging mechanism, which includes two side panels 7. Several packaging boxes 9 are stacked and placed between the two side panels 7, and the packaging box 9 that falls at the bottom can be pushed out from between the two side panels 7. Its box discharging method and box discharging principle are consistent with the existing clip-type box discharging mechanism. In some embodiments, limit plates 8 are provided on both sides of each side panel 7, and the limit plates 8 extend toward the position between the two side panels 7. The limit plates 8 are suspended, and their suspended height is consistent with the height of the second-to-last highest packaging box 9.

[0046] The specific structure of the side panel 7 is shown in Figures 10-15. The side panel 7 may be in the form of a long strip of plate-like structure as a whole. A first air cavity 701 is provided in the side panel 7. The first air cavity 701 is consistent in height with the second-to-last highest packaging box 9. An opening 702 is provided on the side of the first air cavity 701 close to the packaging box 9. An elastic sealing strip 703 is sealed on the opening 702. When air is inflated into the first air cavity 701, the elastic sealing strip 703 will bulge outward, thereby squeezing the second-to-last highest packaging box 9. At this time, the packaging box 9 at the second-to-last highest can be pushed out freely, while the packaging box 9 at the second-to-last highest can be pushed out freely. The second highest packaging box 9 is clamped and fixed. At this time, the packaging box 9 located at the second highest to last also bears the weight of all the packaging boxes 9 above it, which can ensure that the packaging box 9 located at the first highest to last will not be worn due to excessive weight when being pushed out, and the pushing component will not have violent contact with the packaging box 9 above, and it can also avoid the packaging box 9 from being misplaced or offset, thereby achieving a stable, reliable and lossless box-out operation. When the first air cavity 701 is deflated, the elastic sealing strip 703 gradually retracts and resets, and finally no longer clamps the packaging box 9 located at the second highest to last.

[0047] As shown in Figures 1-3, this type of automatic packaging box transmission mechanism includes a lower box track 6, which is used to receive and transmit the packaging box 9 filled with materials. The lower box track 6 can be a groove structure with a U-shaped cross-section, on which an existing electric transmission system can be installed to achieve automatic transmission.

[0048] As shown in Figures 1-3, the automatic transmission mechanism for packaging boxes also includes a transfer mechanism, which is used to receive packaging boxes 9 from the clip-type box discharging mechanism, complete the material filling thereon and transfer the packaging boxes 9 filled with materials to the lower box track 6. In some embodiments, the transfer mechanism includes a first electric telescopic member 1, a transmission member 2, a holding tray 3, a second electric telescopic member 4 and a guide rail 5. One end of the transmission member 2 is connected to the power output end of the first electric telescopic member 1, and the other end is connected to the holding tray 3. The first electric telescopic member 1 can drive the holding tray 3 to reciprocate along the guide rail 5 through the transmission member 2. On the reciprocating path, the holding tray 3 can receive the packaging boxes 9 from the clip-type box discharging mechanism. The packaging box 9 of the box mechanism can also be pushed from the receiving tray 3 to the lower box track 6 by the second electric telescopic member 4. When working, the receiving tray 3 is first moved along the guide rail 5 to align with the clip-type box discharge mechanism through the first electric telescopic member 1 and the transmission member 2. After the packaging box 9 in the clip-type box discharge mechanism is pushed out, it will fall directly on the receiving tray 3. At this time, the staff can start to discharge the material. After the packaging box 9 is full of material, the receiving tray 3 is moved along the guide rail 5 to align with the lower box track 6. Finally, with the help of the second electric telescopic member 4, the packaging box 9 filled with material is transferred to the lower box track 6. In this way, the material filling and automatic transmission of the packaging box 9 are realized.

[0049] As shown in Figures 1-3, this automatic packaging box transmission mechanism also includes an air jet mechanism, which is used to jet the material holding station on the transfer mechanism to achieve jet cleaning of the packaging box 9 on the material holding station before filling.

[0050] As shown in Figures 4-8, the automatic transport mechanism for packaging boxes also includes a box pushing mechanism, which includes a box pushing track 13, a third electric telescopic member 14 and a push plate 15. The clip-type box discharging mechanism is arranged on the box pushing track 13. The push plate 15 can reciprocate between the two side plates 7 along the box pushing track 13 under the drive of the third electric telescopic member 14, thereby pushing the packaging box 9 that falls at the bottom to the transfer mechanism. A groove 1301 is provided on the box pushing track 13, and the two ends of the push plate 15 close to the side plate 7 are Both are provided with a protrusion 1501, and an embedded block 1502 is provided at the bottom of the push plate 15. The embedded block 1502 is movably embedded in the groove 1301. A second air cavity 21 is opened in the push box track 13, and through holes 1302 that pass through the second air cavity 21 are opened on both side walls of the groove 1301. Two squeezing mechanisms 20 are provided in the second air cavity 21. The two squeezing mechanisms 20 extend into the groove 1301 through the two through holes 1302 respectively and elastically squeeze and cooperate with the embedded block 1502.

[0051] As shown in FIG3-8, the air supply system includes an air supply device 18, which supplies air to the second air cavity 21 through an air supply main pipe 19. The first air supply pipe 12 and the second air supply pipe 16 connected to the second air cavity 21 are provided at positions on both sides of the groove 1301 on the push box track 13, wherein the first air supply pipe 12 leads to the jet mechanism. In some embodiments, the jet mechanism includes a hollow plate 10 and a plurality of nozzles 11 provided on the hollow plate 10. The hollow plate 10 and the first air supply pipe 16 are connected to the second air cavity 21. 12 is connected, the second air supply pipe 16 leads to the first air cavity 701, and a push-type air release valve 1601 is provided on the second air supply pipe 16. The push-type air release valve 1601 is located on the side of the extrusion mechanism 20 away from the side plate 7. When the push plate 15 retracts to the maximum stroke, the protrusion 1501 will squeeze the push-type air release valve 1601 and at this time the embedded block 1502 and the extrusion mechanism 20 do not contact each other. When the extrusion mechanism 20 is pressurized, it will only block the first air supply pipe 12. When the extrusion mechanism 20 is not pressurized, it Only the second air supply pipe 16 will be blocked. When the push plate 15 is pushed outward to the maximum stroke, the embedded block 1502 will just be out of contact with the extrusion mechanism 20. In some embodiments, as shown in FIG9 , the extrusion mechanism 20 includes an extrusion block 2001 and a blocking block 2002 that are integrally provided together, and also includes elastic members 2004 provided on both sides of the blocking block 2002. The extrusion block 2001 is used to directly contact and extrude with the embedded block 1502. The extrusion block 2001 and the embedded block 1502 are extruded and fitted. The contact surface is preferably an arc surface to make the interaction between the two smoother. The blocking block 2002 is used to block the first air supply pipe 12 or the second air supply pipe 16, and the elastic member 2004 is used to elastically connect the blocking block 2002 to the inner wall of the second air cavity 21. Preferably, both ends of the blocking block 2002 are provided with outwardly protruding ridges 2003, one end of the elastic member 2004 is connected to the ridge 2003, and the other end is connected to the inner wall of the second air cavity 21. The elastic member 2004 can be a spring.

[0052] Through the above technical solution, as shown in Figures 4 and 5, when the push plate 15 is retracted to the maximum stroke, the embedded block 1502 and the extrusion mechanism 20 do not contact each other. Taking this as the starting point, the air supply device 18 is kept in the turned-on state, and the embedded block 1502 is pushed by the third electric telescopic member 14 to slide along the groove 1301 toward the packaging box 9. During a period of time, the embedded block 1502 completely squeezes the extrusion mechanism 20 into the second air cavity 21 (at this time, the through-hole 1302 is still completely blocked by the extrusion mechanism 20). At this time, the first air supply pipe 12 will be blocked by the extrusion mechanism 20, and the second air supply pipe 16 can be normally During ventilation, the air supplied by the air supply device 18 will stay in the second air cavity 21 and then enter the first air cavity 701 along the second air supply pipe 16. At this time, the air pressure inside the first air cavity 701 gradually increases, so that the elastic sealing strip 703 on the opening 702 bulges toward the direction of the packaging box 9, thereby clamping the packaging box 9. During the period when the squeezing mechanism 20 is squeezed, the air pressure in the first air cavity 701 is continuously increased, and the clamping force on the packaging box 9 is also gradually increased. When the push plate 15 is pushed outward to the maximum stroke, the push plate 15 just completely pushes the packaging box 9 at the bottom to the two side plates 7 In addition (at this time the packaging box 9 is located on the material holding station of the transfer mechanism), the embedded block 1502 will just be out of contact with the extrusion mechanism 20. After the extrusion mechanism 20 is no longer under pressure, it will quickly and elastically reset. The unpressurized extrusion mechanism 20 will only block the second air supply pipe 16, and will no longer block the first air supply pipe 12. After the first air supply pipe 12 is ventilated, the air supply of the air supply device 18 will stay in the second air cavity 21 for transfer and will then flow along the first air supply pipe 12 to the jet mechanism to achieve cleaning of the packaging box 9 on the material holding station. After that, the push plate 15 begins to retract. During the retraction process, since the packaging box 9 is still in the Due to the clamping state of the inflated elastic sealing strip 703, the push plate 15 will not produce a violent interaction with the packaging box 9 above it, and the whole process is smooth. When the push plate 15 retracts to the maximum stroke, the protrusion 1501 on the push plate 15 will squeeze the push-type air release valve 1601, thereby deflating the first air cavity 701. After the first air cavity 701 is deflated, the air pressure returns to its initial state, and the elastic sealing strip 703 retracts. The originally clamped packaging box 9 falls with gravity after losing the clamping force to fill the vacant space of the previous packaging box 9. At this time, repeating the above operation can realize the packaging boxes 9 being taken out one by one.

[0053] In the above process, the packaging box 9 is pushed out of the clip-type box discharging mechanism by the box pushing mechanism. During this period, as the box pushing mechanism moves, the first air cavity 701 in the side plate 7 on the clip-type box discharging mechanism will be inflated, so that the elastic sealing strip 703 at the opening 702 of the first air cavity 701 will bulge toward the packaging box 9, thereby achieving clamping and fixing of the packaging box 9. When the box pushing mechanism is pushed into place, the first air cavity 701 will stop being inflated. At this time, the air-jet mechanism will be inflated, and it is possible to spray air toward the material loading station on the transfer mechanism. At this time, since the packaging box 9 has been completely pushed to the material loading station, the air-jet cleaning of the packaging box 9 is achieved. When the box pushing mechanism is retracted into place, the box pushing mechanism will trigger the air-deflation component to deflate the gas in the first air cavity 701, so that the elastic sealing strip 703 at the opening 702 of the first air cavity 701 will bulge toward the packaging box 9. The sealing strip 703 is reset, and the packaging box 9 is no longer clamped and fixed. The stacked packaging boxes 9 will move downward with gravity to fill the empty space of the previous packaging box 9. The above work can be repeated to push the packaging box 9 out again. In the above process, the packaging box 9 to be taken out is clamped and released through repeated and regular inflation and deflation, which can prevent the stacked packaging boxes 9 to be pushed out from being completely pressed on the pushing component of the box pushing mechanism, and can also put down the upper packaging box 9 in time after the bottom packaging box 9 is pushed out. The whole process can effectively reduce the wear of the packaging box 9 during transportation, and can also prevent the packaging box 9 from being offset. In addition, the degree of automation is high, and the packaging box 9 is not easy to get stuck during transportation, which ensures the efficient transportation of the packaging box 9 and also realizes the automatic cleaning of the packaging box 9 during the box-pushing process.

[0054] In some embodiments, as shown in Figures 10-15, the opening 702 is strip-shaped and has multiple strips, forming a grid-like shape as a whole. The elastic sealing strips 703 are also provided with a corresponding number of strips. Each elastic sealing strip 703 is sealed and arranged on each opening 702 in a one-to-one correspondence. After the multiple elastic sealing strips 703 are inflated, they are pressed and contacted with the packaging box 9 together, which can significantly increase the clamping area of ​​the packaging box 9. In addition, after the elastic sealing strips 703 are inflated, an uneven contact surface is formed, which can significantly increase the friction with the packaging box 9, so that the packaging box 9 can be clamped and fixed more firmly and reliably.

[0055] Preferably, the opening 702 is an upwardly inclined opening, and the angle between the inclined direction and the horizontal direction is preferably 30°. The opening 702 opened in such an inclined manner can guide the elastic sealing strip 703 to bulge in the direction in which it is inclined, that is, guide the elastic sealing strip 703 to bulge obliquely upward. In this way, when each elastic sealing strip 703 bulges, it will lift the packaging box 9 upward under the action of friction, so that the second-to-last packaging box 9 and all the packaging boxes 9 above it are pushed upward for a short distance. In this way, the packaging box 9 to be pushed out at the bottom and the push plate 15 will be completely out of contact with the packaging boxes 9 stacked above them, further avoiding wear and displacement of the packaging box 9, and also making the box-out process smoother and more fluent.

[0056] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic packaging box transmission mechanism, It is characterized in that include: A clip-type box ejection mechanism, which is provided with an inflation and deflation structure for clamping or releasing the packaging box (9); An air jet mechanism, used for jet cleaning the packaging box (9); A box pushing mechanism, used for pushing out the packaging boxes (9) in the clip-type box ejecting mechanism one by one, wherein a second air cavity (21) is provided therein, wherein the second air cavity (21) is connected to the jet mechanism and the clip-type box ejecting mechanism respectively through a first air supply pipe (12) and a second air supply pipe (16) for ventilation, and the second air cavity (21) is also connected to an air supply device (18) through an air supply main pipe (19); A squeezing mechanism (20) is disposed in the second air cavity (21); the box pushing activity of the box pushing mechanism will squeeze the squeezing mechanism (20); the squeezing mechanism (20) can block one end of the first air supply pipe (12) or the second air supply pipe (16) that passes into the second air cavity (21) according to different pressure states.

2. The automatic packaging box transmission mechanism according to claim 1, Features: The clip-type box discharging mechanism comprises two side plates (7), and a plurality of packaging boxes (9) are placed in a stacked state between the two side plates (7); The inflatable and deflated structure is provided on the side panel (7), and comprises a first air cavity (701) provided in the side panel (7), an opening (702) provided on a side of the first air cavity (701) close to the packaging box (9), and an elastic sealing strip (703) sealingly provided on the opening (702); The second air supply pipe (16) leads into the first air cavity (701).

3. The automatic packaging box transmission mechanism according to claim 2, Features: The openings (702) are strip-shaped and have a plurality of strips, forming a grid shape as a whole, and the elastic sealing strips (703) are sealed and arranged on each of the openings (702) in a one-to-one correspondence.

4. The automatic packaging box transmission mechanism according to claim 3, Features: The opening (702) is an upwardly inclined oblique opening, and the angle between the inclined direction and the horizontal direction is 30° to 60°.

5. The automatic packaging box transmission mechanism according to claim 1, Features: The jet mechanism comprises a hollow plate (10) and a plurality of jet heads (11) disposed on the hollow plate (10) and connected to the hollow plate (10); The first air supply pipe (12) leads into the hollow plate (10).

6. The automatic packaging box transmission mechanism according to claim 1, Features: It also comprises a lower box track (6) and a transfer mechanism, wherein the lower box track (6) is used to receive and transfer a fully filled packaging box (9), and the transfer mechanism is used to receive a packaging box (9) from the clip-type box discharging mechanism, complete the filling of the packaging box (9) thereon, and transfer the fully filled packaging box (9) to the lower box track (6); The transfer mechanism comprises a first electric telescopic member (1), a transmission member (2), a receiving tray (3), a second electric telescopic member (4) and a guide rail (5); one end of the transmission member (2) is connected to the power output end of the first electric telescopic member (1), and the other end is connected to the receiving tray (3); the first electric telescopic member (1) can drive the receiving tray (3) to reciprocate along the guide rail (5) through the transmission member (2); on the path of the reciprocating motion, the receiving tray (3) can receive a packaging box (9) from the clip-type box ejecting mechanism, and can also push the packaging box (9) from the receiving tray (3) to the lower box track (6) through the second electric telescopic member (4).

7. The automatic packaging box transmission mechanism according to claim 2, Features: The box pushing mechanism comprises a box pushing track (13) and a pushing plate (15); the pushing plate (15) can reciprocate along the box pushing track (13) and move in and out between the two side plates (7) via a third electric telescopic member (14); The box push rail (13) is provided with a groove (1301), the push plate (15) is provided with a protrusion (1501) and an embedding block (1502), the embedding block (1502) is movably embedded in the groove (1301), the groove (1301) is provided with a through opening (1302) penetrating the second air cavity (21), the extrusion mechanism (20) extends into the groove (1301) through the through opening (1302) and is elastically extruded and matched with the embedding block (1502).

8. The automatic packaging box transmission mechanism according to claim 7, Features: The extrusion mechanism (20) comprises an extrusion block (2001) and a blocking block (2002) which are integrally arranged together, and also comprises elastic members (2004) arranged on both sides of the blocking block (2002); the extrusion block (2001) is used for directly contacting and extruding with the embedding block (1502); the blocking block (2002) is used for blocking the first air supply pipe (12) or the second air supply pipe (16); and the elastic member (2004) is used for elastically connecting the blocking block (2002) to the inner wall of the second air cavity (21).

9. The automatic packaging box transmission mechanism according to claim 8, Features: The contact surface of the extrusion block (2001) and the embedding block (1502) in extrusion matching is an arc surface.

10. The automatic packaging box transmission mechanism according to claim 7, Features: The second air supply pipe (16) is provided with a push-type air release valve (1601). When the push plate (15) is retracted to the maximum stroke, the protrusion (1501) will squeeze the push-type air release valve (1601) and at this time, the embedded block (1502) and the squeezing mechanism (20) are not in contact with each other. When the squeezing mechanism (20) is under pressure, it will only block the first air supply pipe (12). When the squeezing mechanism (20) is not under pressure, it will only block the second air supply pipe (16). When the push plate (15) is pushed outward to the maximum stroke, the embedded block (1502) will just be out of contact with the squeezing mechanism (20).

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