CN215098623U

CN215098623U - Cake packagine machine's box opening device

Info

Publication number: CN215098623U
Application number: CN202121363124.8U
Authority: CN
Inventors: 赵亮; 余斌
Original assignee: Harbin Institute of Technology Robot Nanchang Intelligent Manufacturing Research Institute
Current assignee: Harbin Institute of Technology Robot Nanchang Intelligent Manufacturing Research Institute
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-10
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a cake packaging machine box opening device, which comprises a conveying frame, wherein a toothed chain conveying device is arranged on the conveying frame, the toothed chain conveying device comprises a circulating conveying chain, and each circulating conveying chain is provided with a plurality of groups of shifting teeth; the box taking device is arranged on the rack and comprises a box taking machine frame, a storage bin is arranged on the box taking machine frame, a discharge port is arranged on the side surface of the storage bin, and a deflection box taking mechanism is arranged on the box taking machine frame; the upper deflection box taking mechanism deflects and switches between a box taking station and a box placing station; the box opening device is characterized in that the lower deflection suction mechanism is installed on the conveying rack, the lower deflection suction mechanism deflects and switches between the avoiding station and the suction station, the lower deflection suction mechanism sucks the bottom of the packaging box when sucking the station, the box opening device can complete box opening action in the box taking deflection process, and the box opening efficiency is high and the action is stable and reliable.

Description

Cake packagine machine's box opening device

Technical Field

The utility model relates to an open box device, especially relate to a cake packagine machine's box device of opening.

Background

Present cake like this kind of square food of saqima etc. through the single independent package back at first, need pack into the box again, and dress box sealing section automation maturity is higher, but anterior segment cake supplied materials and label are delivered etc. because of the special requirement of material and label, are manual operation at present, and packaging efficiency is lower and have food safety's risk, for reducing or even stop food safety problem and improve production efficiency, the box of getting of packing carton is more critical in cake full automatization packaging production line. The cake has been packed well square pouch through parcel packagine machine, and square pouch's cake has one face to be the vestige face of thermal bonding after packing, and square pouch's cake passes through the transmission band and carries and reentry whole package packagine machine and pack. While the small-packet cakes need to be stacked together and fed into a packaging box when being packaged. In order to meet the requirement of automatic packaging, the packaging boxes are generally in an unopened state and are overlapped together, so that the automatic production of the cake packaging machine can be ensured only by taking out the packaging boxes one by a special box taking device, the structure of the existing box taking device is complex, and the boxes are opened by an opening mechanism after being taken out, so that the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the box opening device of the cake packaging machine can complete box opening operation at one time in the box taking operation process, so that the box opening efficiency is improved.

In order to solve the technical problem, the technical scheme of the utility model is that: a box opening device of a cake packaging machine comprises a conveying rack, wherein a toothed chain conveying device is mounted on the conveying rack and comprises two parallel circulating conveying chains driven by a motor, a plurality of groups of shifting teeth are arranged on each circulating conveying chain at equal intervals, and spaces between adjacent shifting teeth on the two circulating conveying chains form a placing area convenient for placing a packaging box;

the box taking device is arranged on the rack and positioned at the upstream side of the toothed chain conveying device and comprises a box taking rack, a storage bin convenient for overlapping placement of the packing boxes is arranged on the box taking rack, a discharge hole is formed in the side surface of the storage bin, and an upper deflection box taking mechanism for taking out the packing boxes in the storage bin and moving the packing boxes to a placement area is arranged on the box taking rack; the upper deflection box taking mechanism deflects and switches between a box taking station and a box placing station;

the lower deflection suction mechanism is arranged between the two circulating conveying chains on the conveying rack, deflects and switches between an avoiding station and a suction station, and sucks the bottom of the packaging box when sucking the station.

As an optimal scheme, go up deflection and get box mechanism including set up in get first articulated shaft and second articulated shaft on the box rack, the one end of oblique swing arm is connected to first articulated shaft, the position of second articulated shaft is higher than first articulated shaft, it has the guiding arm to articulate on the second articulated shaft, be provided with the uide bushing on the guiding arm, slidable mounting has the guiding axle in the uide bushing, the one end of guiding axle is run through the uide bushing, and the other end passes through the loose axle with the other end of last beat arm and articulates, intersect into an obtuse angle between guiding axle and the last beat arm, install the last sucking disc subassembly of the packing carton in the absorption storage silo on the loose axle, install the reciprocal beat drive arrangement of drive upper beat arm reciprocating motion between getting the box station and putting the box station in the frame.

As a preferred scheme, the reciprocating deflection driving device comprises a deflection driving motor fixed on the box taking frame, a driving wheel driven by the deflection driving motor is rotatably installed on the box taking frame, a driving shaft is eccentrically installed on the driving wheel, one end of a first driving connecting rod is hinged to the driving shaft, the other end of the first driving connecting rod is hinged to a second driving connecting rod, and the second driving connecting rod is fixedly connected with a first hinged shaft.

As an optimal scheme, the storage silo includes storage platform, storage platform's top is fixed with the housing, storage space has been formed between housing and the storage platform, one side of housing is the discharge gate, and the opposite side is the feed supplement mouth, the one side that lies in the discharge gate on the housing is provided with the flange structure that blocks the packing carton edge, the last one side that lies in the feed supplement mouth of storage platform slides and is provided with the extrusion mechanism who extrudees the packing carton in the storage space to the flange structure.

As a preferred scheme, the flange structure includes barrier strips arranged on at least two different side walls of the housing, and the barrier strips are close to the discharge port.

As a preferred scheme, the lower deflection suction mechanism comprises a lower base and a lower deflection swing arm, the lower base is fixed on the conveying rack, one end of the lower deflection swing arm is installed on the lower base in a manner of up-down deflection around a horizontal hinged shaft, a lower deflection driving device for driving the lower deflection swing arm to deflect is arranged between the conveying rack and the lower deflection swing arm, and a lower sucker component used for sucking the bottom of the packaging box is installed at the other end of the lower deflection swing arm.

As a preferable scheme, the lower deflection driving device comprises a lower deflection cylinder, one end of the lower deflection cylinder is hinged on the conveying rack, and the other end of the lower deflection cylinder is hinged in the middle of the lower deflection arm.

Preferably, a blocking guide structure is arranged on the conveying rack at the downstream side of the placing station.

Preferably, the blocking guide mechanism includes an inclined guide plate provided on the conveyor frame at a downstream side of the placing area on the placing station.

Preferably, the guide plate includes a horizontal plate portion and an inclined plate portion connected to an upstream end of the horizontal plate portion at an acute angle to each other, an upper end of the inclined plate portion being biased to a downstream side, and the horizontal plate portion is provided with a detection sensor for detecting the spread package.

After the technical scheme is adopted, the utility model discloses an effect is: the box opening device comprises a conveying rack, wherein a toothed chain conveying device is arranged on the conveying rack and comprises two parallel circulating conveying chains driven by a motor, a plurality of groups of shifting teeth are arranged on each circulating conveying chain at equal intervals, and a space between adjacent shifting teeth on the two circulating conveying chains forms a placing area convenient for placing a packing box; the box taking device is arranged on the rack and positioned at the upstream side of the toothed chain conveying device and comprises a box taking machine frame, a storage bin convenient for overlapping placement of the packing boxes is arranged on the box taking machine frame, a discharge port is formed in the side surface of the storage bin, and an upper deflection box taking mechanism for taking out the packing boxes in the storage bin and moving the packing boxes into a placement area is arranged on the box taking machine frame; the upper deflection box taking mechanism deflects and switches between a box taking station and a box placing station; a lower deflection suction mechanism is arranged between the two circulating conveying chains on the conveying frame, the lower deflection suction mechanism deflects and switches between an avoiding station and a suction station, the lower deflection suction mechanism sucks the bottom of the packaging box when sucking the station, therefore, the stacked packing boxes are placed in the storage bin, one packing box at the discharge port is deflected to the box placing station by the upper deflection box taking mechanism, and the lower deflection mechanism can move from the avoiding station to the absorbing station to assist in absorbing the bottom of the packing box in the deflection process, and then the lower deflection box taking mechanism can descend after absorbing the bottom of the packing box, therefore, the upper surface and the lower surface of the packing box can form a horizontal movement dislocation in the moving process and have an upper and lower height difference, and finally the opening of the packing box is realized, the box opening device can complete box opening action in the box taking deflection process, and is high in box opening efficiency and stable and reliable in action.

And the upper deflection box taking mechanism comprises a first articulated shaft and a second articulated shaft which are arranged on the box taking machine frame, the first articulated shaft is connected with one end of an upper deflection swing arm, the position of the second articulated shaft is higher than that of the first articulated shaft, a guide arm is articulated on the second articulated shaft, a guide sleeve is arranged on the guide arm, a guide shaft is slidably arranged in the guide sleeve, one end of the guide shaft penetrates through the guide sleeve, the other end of the guide shaft is articulated with the other end of the upper deflection swing arm through a movable shaft, an obtuse angle is formed by the intersection of the guide shaft and the upper deflection swing arm, a component for sucking the packaging boxes in the storage bin is arranged on the movable shaft, and a reciprocating deflection driving device for driving the upper deflection swing arm to reciprocate between a box taking station and a box placing station is arranged on the machine frame. Therefore, in the actual production process, the stacked packing boxes are placed in the storage bin, then the reciprocating deflection driving device drives the deflection arm to switch back and forth between the box taking station and the box placing station, the movable shaft is driven to deflect by taking the first articulated shaft as the center of a circle in the deflection process of the deflection arm, and the movable shaft moves along with the guide shaft, so that the guide shaft not only moves axially along the guide sleeve in the deflection process of the deflection arm, but also deflects around the second articulated shaft along with the guide arm, the guide shaft drives the movable shaft to deflect in the deflection process, the direction of the sucker component is changed, the sucker component is correspondingly matched with the position of the discharge port in the box taking station, and deflects to the box placing position in the box placing station, therefore, the box taking device has reasonable and reliable structure, and the stations are switched by utilizing the deflection arm, the self deflection of the movable shaft is realized by utilizing the deflection and the sliding action of the guide shaft, so that the direction of the sucker component is changed, the packaging box can be accurately sucked, and the action is rapid and reliable.

And because the reciprocating deflection driving device comprises a deflection driving motor fixed on the box taking machine frame, a driving wheel driven by the deflection driving motor is rotatably arranged on the box taking machine frame, a driving shaft is eccentrically arranged on the driving wheel, one end of a first driving connecting rod is hinged on the driving shaft, the other end of the first driving connecting rod is hinged on a second driving connecting rod, the second driving connecting rod is fixedly connected with a first hinging shaft, the reciprocating deflection driving device utilizes the deflection driving motor as power, and two connecting rods are driven to act through the eccentric driving shaft on the driving wheel, so that the reciprocating deflection of the deflection arm is realized, and the action is reliable.

And because the storage bin comprises a storage platform, a housing is fixed above the storage platform, a storage space is formed between the housing and the storage platform, one side of the housing is a discharge port, the other side of the housing is a material supplementing port, a flange structure for blocking the edge of the packing box is arranged on one side of the housing positioned at the discharge port, and a squeezing mechanism for squeezing the packing box in the storage space to the flange structure is arranged on one side of the material supplementing port on the storage platform in a sliding manner, after the structure is used, the stacked packing box can be put into the storage space from the material supplementing port, and then the packing box is properly squeezed by the squeezing mechanism, so that the packing box is forced to be positioned at the discharge port and blocked by the flange mechanism, thus the packing box can be continuously supplied to a specified position, the sucking disc component can be conveniently and accurately adsorbed to the packing box, and after the sucking disc component can take out one packing box, and other packing boxes are blocked by the flange structures, so that the continuity of box taking work is ensured.

And because the lower deflection suction mechanism comprises a lower base and a lower deflection swing arm, the lower base is fixed on the conveying rack, one end of the lower deflection swing arm is vertically deflected around the horizontal hinged shaft and is arranged on the lower base, a lower deflection driving device for driving the lower deflection swing arm to deflect is arranged between the conveying rack and the lower deflection swing arm, and the other end of the lower deflection swing arm is provided with a lower sucker component for sucking the bottom of the packaging box.

And the blocking guide mechanism comprises an inclined guide plate, the guide plate is arranged on the conveying rack and is positioned on the downstream side of the placement area on the placement station, and the guide plate can conveniently block and guide the packaging box to a certain degree in the movement process of the box taking mechanism by upward deflection, so that the packaging box can accurately fall into the placement area after being opened.

And because the guide plate comprises a horizontal plate part and an inclined plate part, the inclined plate part is connected with the upstream end of the horizontal plate part and forms an acute angle with the upstream end of the horizontal plate part, the upper end of the inclined plate part is deviated to the downstream side, a detection sensor for detecting the unfolded packing box is arranged on the horizontal plate part, and the detection sensor can be used for detecting whether the packing box is unfolded and is conveyed to a downstream station by the toothed chain conveying device.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of another angle of the embodiment of the present invention;

FIG. 3 is a schematic structural view of the box taking device and the lower deflection sucking mechanism according to the embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 from another angle;

FIG. 5 is a front view of FIG. 3;

fig. 6 is a schematic structural view of a lower deflection sucking mechanism according to an embodiment of the present invention;

fig. 7 is a schematic view of another angle structure of the lower deflection sucking mechanism according to the embodiment of the present invention;

fig. 8 is a schematic structural view of an upper deflection box taking mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic view of a part of the structure of a storage bin according to an embodiment of the present invention;

in the drawings: 1. a conveyor frame; 2. shifting teeth; 3. a box taking machine frame; 4. a storage bin; 41. a material supplementing port; 42. a housing; 43. a flange structure; 44. an extrusion mechanism; 45. a discharge port; 5. an upper deflection box taking mechanism; 51. a first hinge shaft; 52. a second hinge shaft; 53. an upper deflection swing arm; 54. a guide arm; 55. a guide sleeve; 56. a guide shaft; 57. a movable shaft; 58. an upper sucker component; 59. a reciprocating yaw drive; 591. a yaw drive motor; 592. a drive wheel; 593. a first drive link; 594. a second drive link; 6. a lower deflection suction mechanism; 61. a lower base; 62. a downward-biased swing arm; 63. a lower yaw drive device; 64. a lower sucker assembly; 7. a guide plate; 71. a horizontal plate portion; 72. an inclined plate portion; 73. a detection sensor; 8. packaging boxes; A. a box taking station; B. and a box placing station.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

As shown in fig. 1-9, a cake packaging machine box opening device comprises a conveying frame 1, wherein a toothed chain conveying device is mounted on the conveying frame 1, the toothed chain conveying device comprises two parallel circulating conveying chains driven by a motor, a plurality of groups of shifting teeth 2 are arranged on each circulating conveying chain at equal intervals, and a space between every two adjacent shifting teeth 2 on the two circulating conveying chains forms a placing area for placing a packaging box 8 conveniently; a box taking device is arranged on the conveying rack 1 and positioned on the upstream side of the toothed chain conveying device, the box taking device comprises a box taking rack 3, a storage bin 4 convenient for overlapping placement of the packing boxes 8 is arranged on the box taking rack 3, a discharge hole 45 is arranged on the side surface of the storage bin 4, and an upper deflection box taking mechanism 5 for taking out the packing boxes 8 in the storage bin 4 and moving the packing boxes to a placement area is arranged on the box taking rack 3; the upper deflection box taking mechanism 5 deflects and switches between a box taking station and a box placing station;

the upper deflection box taking mechanism 5 comprises a first articulated shaft 51 and a second articulated shaft 52 which are arranged on the box taking machine frame 3, the first articulated shaft 51 is connected with one end of an upper deflection swinging arm 53, the position of the second articulated shaft 52 is higher than that of the first articulated shaft 51, a guide arm 54 is hinged on the second articulated shaft 52, a guide sleeve 55 is arranged on the guide arm 54, a guide shaft 56 is arranged in the guide sleeve 55 in a sliding way, one end of the guide shaft 56 penetrates through the guide sleeve 55, the other end of the guide shaft is hinged with the other end of the upper deflection swinging arm 53 through a movable shaft 57, an obtuse angle is formed by the intersection between the guide shaft 56 and the upper deflection swinging arm 53, an upper sucker component 58 for sucking the packing box 8 in the storage bin 4 is arranged on the movable shaft 57, a reciprocating deflection driving device 59 for driving the upper deflection swinging arm 53 to reciprocate between a box taking station and a box placing station is arranged on the machine frame,

the reciprocating swing driving device 59 comprises a swing driving motor 591 fixed on the box taking machine frame 3, a driving wheel 592 driven by the swing driving motor 591 is rotatably arranged on the machine frame, a driving shaft is eccentrically arranged on the driving wheel 592, one end of a first driving connecting rod 593 is hinged on the driving shaft, the other end of the first driving connecting rod 593 is hinged on a second driving connecting rod 594, the second driving connecting rod 594 is fixedly connected with a first hinging shaft 51,

in this embodiment, the upper suction cup assembly 58 includes a suction cup frame, the suction cup frame is fixed on the movable shaft 57 through a cantilever plate, the suction cup frame is provided with a plurality of suction cup units, each suction cup unit is connected with a negative pressure system, the negative pressure system is a conventional vacuum pumping system at present, and the packaging box 8 is sucked by using a negative pressure mode;

a lower deflection suction mechanism 6 is arranged on the conveying frame 1 between the two circulating conveying chains, the lower deflection suction mechanism 6 deflects and switches between an avoidance station and a suction station, the lower deflection suction mechanism 6 sucks the bottom of the packing box 8 at the suction station, the lower deflection suction mechanism 6 comprises a lower base 61 and a lower deflection swing arm 62, the lower base 61 is fixed on the conveying frame 1, one end of the lower deflection swing arm 62 is arranged on the lower base 61 in a manner of up-and-down deflection around a horizontal hinged shaft, a lower deflection driving device 63 for driving the lower deflection swing arm 62 to deflect is arranged between the conveying frame 1 and the lower deflection swing arm 62, the other end of the lower deflection swing arm 62 is provided with a lower suction cup for sucking the bottom of the packing box 8, the structure of a lower suction cup component 64 is similar to that of the upper suction cup component 58, in the embodiment, the lower deflection driving device 63 comprises a lower deflection air cylinder, one end of the lower deflection air cylinder is hinged on the conveying frame 1, the other end of the lower deflection cylinder is hinged at the middle part of the lower deflection swing arm 62;

the storage bin 4 comprises a storage platform, a housing 42 is fixed above the storage platform, a storage space is formed between the housing 42 and the storage platform, one side of the housing 42 is a discharge port 45, the other side of the housing 42 is a feeding port 41, a flange structure 43 for blocking the edge of the packing box 8 is arranged on one side of the housing 42, which is positioned at the discharge port 45, the flange structure 43 comprises barrier strips arranged on at least two different side walls of the housing 42, the barrier strips are close to the discharge port 45, and the barrier strips can be in different shapes as required;

in this embodiment, the last one side that lies in feed supplement mouth 41 of storage platform slides and is provided with the extrusion mechanism 44 that extrudees packing carton 8 in the storage space to flange structure 43, and extrusion mechanism 44 includes the push pedal of slidable mounting in storage platform upper end, and the push pedal is pushed power device drive by crowded, and crowded power device that pushes away includes servo motor, installs the conveyer belt on the storage platform, and the conveyer belt is driven by servo motor, and the push pedal is fixed on the conveyer belt. Of course, the pressing mechanism 44 may also adopt a passive pressing mechanism 44, and since the storage platform is disposed obliquely, the pressing mechanism 44 may adopt a push plate, the push plate is sleeved on a polish rod through a bearing, and then the push plate is provided with a counterweight, so that since the polish rod is also disposed obliquely, the push plate provided with the counterweight can be pressed on the packing box 8 at any time, thereby providing a moving pressing force, and also ensuring that the packing box 8 is at the position of the discharge port 45;

in this embodiment, the blocking guide structure is installed on the conveyor frame 1 on the downstream side of the placement station, the blocking guide structure includes an inclined guide plate 7, the guide plate 7 is disposed on the conveyor frame 1 and on the downstream side of the placement area on the placement station, the guide plate 7 includes a horizontal plate portion 71 and an inclined plate portion 72, the inclined plate portion 72 is connected to the upstream end of the horizontal plate portion 71 and forms an acute angle with each other, the upper end of the inclined plate portion 72 is deviated to the downstream side, and a detection sensor 73 for detecting the unfolded packing box 8 is disposed on the horizontal plate portion 71.

When the automatic box taking and placing device works, the packing boxes 8 are stacked in the storage bin 4, one packing box 8 at the discharge hole 45 is deflected to the box placing station by the upper deflection box taking mechanism 5, the upper sucker assembly 58 is firstly positioned at the box taking station A, when the sucker assembly needs to turn to the box placing station B, the deflection driving motor 591 drives the upper deflection arm 53 to swing, and drives the movable shaft 57 to swing in the swing process, and because of the swing process of the movable shaft 57, the guide shaft 56 slides in the guide sleeve 55, the guide arm 54 is swung about the second hinge axis 52, since the swing angle of the upper swing arm 53 is smaller than that of the guide arm 54, the larger swing angle of the guide arm 54 causes the guide shaft 56 to drive the movable shaft 57 to deflect relative to the upper swing arm 53, and finally drives the upper suction cup assembly 58 to angularly deflect, thus, the upper suction cup assembly 58 turns the sucked packing box 8 to the horizontal box placing station B. At this moment, lower beat swing arm 62 of lower beat suction means 6 carries out the beat under the drive of lower beat cylinder, the in-process lower deflection mechanism that deflects can be followed and dodged the station and removed the absorption station and supplementary bottom of absorbing packing carton 8, lower deflection is got box mechanism and is absorbed decline behind the packing carton 8 bottom, packing carton 8 like this can form a horizontal motion dislocation and have an upper and lower difference in height at the in-process upper and lower surface that removes, realize opening of packing carton 8, block that guide structure leads packing carton 8, detection sensor 73 can respond to the packing carton 8 of opening, this application can be in the action in-process of getting the box accomplished the action of opening the box, thereby improve work efficiency.

The actuating devices such as the air cylinder, the servo motor and the like and the gear transmission mechanism mentioned in the embodiment are all conventional technologies at present, specific structures and principles of the air cylinder, the motor and other transmission mechanisms and other designs are disclosed in detail in a mechanical design manual fifth edition printed for twenty-eight times in Beijing fifth edition in 4.2008, and belong to the prior art, the structures of the actuating devices are clear, and the control and travel switches of the motor are also described in detail in a motor driving and speed regulating book published by a chemical industry publisher in 2015, 07.01.A circuit connection is clear.

The above-mentioned embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and all modifications and changes made by the technical solution of the present invention should fall within the protection scope defined by the claims of the present invention on the basis of not departing from the spirit of the present invention.

Claims

1. The utility model provides a cake packagine machine's box device that opens, includes and carries the frame, its characterized in that: the conveying rack is provided with a toothed chain conveying device, the toothed chain conveying device comprises two parallel circulating conveying chains driven by a motor, each circulating conveying chain is provided with a plurality of groups of shifting teeth at equal intervals, and spaces between adjacent shifting teeth on the two circulating conveying chains form a placing area convenient for placing the packing boxes;

the box taking device is arranged on the rack and positioned on the upstream side of the toothed chain conveying device and comprises a box taking rack, a storage bin convenient for overlapping placement of the packing boxes is arranged on the box taking rack, a discharge hole is formed in the side surface of the storage bin, and an upper deflection box taking mechanism for taking out the packing boxes in the storage bin and moving the packing boxes to a placement area is arranged on the box taking rack; the upper deflection box taking mechanism deflects and switches between a box taking station and a box placing station;

2. The box opening device of the cake packaging machine as claimed in claim 1, wherein: go up deflection and get box mechanism including set up in get first articulated shaft and second articulated shaft on the box rack, the one end of inclined to one side swing arm is connected to first articulated shaft, the position of second articulated shaft is higher than first articulated shaft, it has the guiding arm to articulate on the second articulated shaft, be provided with the uide bushing on the guiding arm, slidable mounting has the guiding axle in the uide bushing, the one end of guiding axle runs through the uide bushing, and the other end passes through the loose axle with the other end of last inclined to one side swing arm and articulates, intersect into an obtuse angle between guiding axle and the last inclined to one side swing arm, install the last sucking disc subassembly that absorbs the packing carton in the storage silo on the loose axle, install the reciprocal beat drive arrangement of drive upper inclined to one side swing arm in getting the box station and putting reciprocating motion between the box station in the frame.

3. The box opening device of the cake packaging machine as claimed in claim 2, wherein: reciprocating beat drive arrangement is including being fixed in get the beat driving motor on the box rack, get and rotate on the box rack and install the drive wheel by beat driving motor driven, eccentric mounting has the drive shaft on the drive wheel, it has the one end of first drive connecting rod to articulate in the drive shaft, the other end of first drive connecting rod articulates there is the second drive connecting rod, second drive connecting rod and first articulated shaft fixed connection.

4. A box opening device of a pastry packing machine as defined in claim 3, wherein: the storage silo includes storage platform, storage platform's top is fixed with the housing, storage space has been formed between housing and the storage platform, one side of housing is the discharge gate, and the opposite side is the feed supplement mouth, the one side that lies in the discharge gate on the housing is provided with the flange structure that blocks the packing carton edge, the last one side that lies in the feed supplement mouth of storage platform slides and is provided with the extrusion mechanism who extrudes the packing carton in the storage space to the flange structure.

5. The box opening device of the cake packaging machine as claimed in claim 4, wherein: the flange structure comprises baffle strips arranged on at least two different side walls of the housing, and the baffle strips are close to the discharge hole.

6. A pastry packing machine box opening device as defined in any one of claims 1 to 5, wherein: the lower deflection suction mechanism comprises a lower base and a lower deflection swing arm, the lower base is fixed on the conveyor frame, one end of the lower deflection swing arm is installed on the lower base in a manner of vertically deflecting around a horizontal hinged shaft, a lower deflection driving device for driving the lower deflection swing arm to deflect is arranged between the conveyor frame and the lower deflection swing arm, and a lower suction disc assembly used for sucking the bottom of the packaging box is installed at the other end of the lower deflection swing arm.

7. The box opening device of the cake packaging machine as claimed in claim 6, wherein: the lower deflection driving device comprises a lower deflection air cylinder, one end of the lower deflection air cylinder is hinged to the conveying rack, and the other end of the lower deflection air cylinder is hinged to the middle of the lower deflection arm.

8. The box opening device of the cake packaging machine as claimed in claim 7, wherein: and a blocking guide structure is arranged on the conveying rack at the downstream side of the placing station.

9. The box opening device of the cake packaging machine as claimed in claim 8, wherein: the blocking guide mechanism comprises an inclined guide plate, and the guide plate is arranged on the conveying rack and is positioned on the downstream side of a placement area on the placement station.

10. The box opening device of the pastry packing machine as set forth in claim 9, wherein: the guide plate comprises a horizontal plate part and an inclined plate part, the inclined plate part is connected with the upstream end of the horizontal plate part and forms an acute angle with the upstream end of the horizontal plate part, the upper end of the inclined plate part is deviated to the downstream side, and a detection sensor for detecting the unfolded packing box is arranged on the horizontal plate part.