CN113320755A - Automatic cake box sealing and packaging machine - Google Patents

Abstract

The invention discloses an automatic cake box sealing and packaging machine which comprises a conveying rack, wherein a toothed chain conveying device is installed on the conveying rack, a storage bin is installed on the conveying rack, a discharge hole is formed in the side surface of the storage bin, and a box opening device is arranged between the discharge hole of the storage bin and the upstream end of the toothed chain conveying device; the cover opening mechanism is close to the box filling end and used for opening an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at the end part of the packing box; a cover opening and packing station is arranged on the conveying rack; and a heat sealing device is also arranged on the conveying rack at the downstream of the cover closing mechanism. This automatic box packagine machine that seals of cake can realize that the packing carton of superpose opens the box and expandes, uncaps, closes and covers and the heat-seal to the automatic packing of cake packing carton has been realized.

Description

Automatic cake box sealing and packaging machine

Technical Field

The invention relates to a packaging machine, in particular to a packaging machine which can automatically seal a box for cakes and automatically seal a box for a packaging box.

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. When the small-packet cakes are packed, the two small-packet cakes are stacked together and fed into a packing box. In order to meet the requirement of automatic packaging, the packaging boxes are generally in an unopened state and are stacked together, so that the automatic production of the cake packaging machine can be guaranteed only by taking out the packaging boxes one by one through a special box taking device, the structure of the existing box taking device is complex, and the box taking mode of rectangular coordinates is generally adopted for taking the boxes.

The current packaging box is a plastic packaging box with certain hardness, in order to ensure that the caramel treats can be accurately automatically packaged, the packaging box needs to open cover plates at two ends of the packaging box after being opened, so that cakes such as the caramel treats can be stuffed in the packaging box, then the cover plates at two ends need to be closed and sealed, and at present, an automatic box sealing packaging machine which is reasonable in structure and high in reliability does not exist.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides an automatic box packagine machine that seals of cake, this automatic box packagine machine that seals of cake can realize that the packing carton of superpose opens the box and expandes, uncaps, closes and covers and the heat-seal to the automatic packing of cake packing carton has been realized.

In order to solve the technical problems, the technical scheme of the invention is as follows: an automatic cake box sealing and 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 conveying 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; a box taking machine frame is arranged on the conveying rack and positioned on the upstream side of the tooth-shaped chain conveying device, a storage bin convenient for overlapping placement of the packing boxes is arranged on the box taking machine frame, a discharge port is arranged on the side surface of the storage bin, and a box opening device which is used for taking out the packing boxes one by one, moving the packing boxes into a placement area and opening the packing boxes is arranged between the discharge port of the storage bin and the upstream end of the tooth-shaped chain conveying device;

an uncovering and boxing station is arranged on the conveyor frame and at the downstream of the placement area, one end of a packing box positioned at the uncovering and boxing station is a box loading end, the other end of the packing box is a blocking end, an uncovering mechanism and a blocking and positioning mechanism are arranged on the conveyor frame and positioned at the uncovering and boxing station, and the uncovering mechanism is close to the box loading end and is used for opening an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at the end part of the packing box; the blocking and positioning mechanism is close to the blocking end and is used for blocking and positioning the loaded cakes;

a cover closing mechanism for closing an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at two ends of the packing box is arranged on the conveying rack at the downstream of the cover opening and packing station;

and a heat sealing device for performing heat sealing on the closed cover plate is also arranged at the downstream of the cover closing mechanism on the conveyor frame.

As a preferable scheme, the box opening device comprises an upper deflection box taking mechanism which is arranged on the box taking frame in a deflection way and is used for taking out the packing boxes in the storage bin and moving the packing boxes to the placing area; 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 and can deflect and switch up and down 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 is adopted, the box opening can be completed in the action process of sucking the packaging box, the upper deflection box taking mechanism sucks one packaging box which is stacked on the outermost side and deflects to the box placing station, the lower deflection suction mechanism deflects upwards and sucks the bottom of the packaging box in the deflection process, so that the upper deflection box taking mechanism and the lower deflection suction mechanism respectively suck the upper surface and the lower surface of the packaging box and generate relative displacement in the left-right direction and the up-down direction in the deflection process, the unfolding of the packaging box is realized, finally the upper deflection box taking mechanism releases the upper surface of the packaging box, and the lower deflection suction mechanism drives the packaging box to be placed in the placing area, therefore, the whole box taking and opening process is completed in the deflection process, and the efficiency is high and the action is reliable.

As a preferred scheme, go up the 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 runs 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 that absorbs the packing carton in the storage silo on the loose axle, get box rack and install the reciprocal beat drive arrangement of drive go up beat arm at getting box station and putting box station reciprocating motion. Therefore, in the deflection process of the deflection arm, the guide shaft not only can move axially along the guide sleeve, but also deflects along with the guide arm around the second hinge shaft, the guide shaft can drive the movable shaft to deflect per se in the deflection process, so that the direction of the sucker component is changed, the sucker component is correspondingly matched with the position of the discharge port when the box taking station is used, and the box placing station is deflected to the position of the box placing station.

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 the 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 cover opening mechanism comprises a first upper cover supporting plate and a first lower cover supporting plate which are fixed on the conveyor frame of the conveyor, the upstream ends of the first upper cover-opening supporting plate and the first lower cover-opening supporting plate are mutually folded, the conveying rack is provided with an upstream side cover-opening supporting plate and a downstream side cover-opening supporting plate which are eccentrically arranged around a vertical axis, the upstream side cover opening supporting plate and the downstream side cover opening supporting plate are respectively driven by an upstream cover opening deflection power device and a downstream cover opening deflection power device to deflect from inside to outside, the upstream uncapping deflection power device drives the upstream side uncapping support plate to deflect between the upstream uncapping station and the upstream avoiding station, the downstream uncapping deflection power device drives the downstream uncapping supporting plate to deflect between a downstream uncapping station and a downstream avoiding station, and the upstream side uncapping supporting plate is outwards pulled open the upstream side cover sheet when deflected from the upstream avoiding station to the upstream uncapping station; downstream side uncap fagging is dodged the station by low reaches and is outwards pulled open when downstream side uncap the station and deflect the downstream side cover plate, this mechanism of uncapping is rational in infrastructure, at first utilize first upper cover fagging and first lower cover fagging to mutually support and can accomplish the strutting of upper cover piece and lower cover piece at the in-process that the packing carton was carried, and the motion when the packing carton is for carrying station interval one by one, consequently to the packing carton when opening the dress box station, the packing carton stops to be carried, upper cover piece and lower cover piece have been propped open this moment, then by upstream side uncap fagging and downstream side cover fagging from inside to outside deflection, just so can make upstream side cover piece and downstream side cover piece also open, the complete opening of final dress box end, make things convenient for the propelling.

As a preferable scheme, the blocking positioning mechanism comprises a blocking positioning plate, a second upper cover opening supporting plate and a second lower cover opening supporting plate, the second upper cover opening supporting plate and the second lower cover opening supporting plate are fixed on the conveying rack and have the same structures as the first upper cover opening supporting plate and the first lower cover opening supporting plate respectively, and the blocking positioning plate is slidably mounted on the conveying rack and is positioned between the second upper cover opening supporting plate and the second lower cover opening supporting plate; stop the locating plate size with the tip opening adaptation of packing carton, stop the locating plate by stopping location power device drive stopping the location station and dodging to slide between the station, should stop that positioning mechanism can prop up upper cover plate and lower cover plate at the in-process of carrying through upper cover fagging and the lower fagging of opening under the second at first, so not only conveniently stop the slip of locating plate, the upper cover plate and the lower cover plate that strut also can keep a state of expansion and make things convenient for subsequent closing to cover the mechanism closed, can avoid upper cover plate and lower cover plate to be in other states so also can't cover upstream side cover plate and downstream side cover plate often.

As a preferable scheme, the cover closing mechanism includes a side cover closing mechanism for closing the upstream side cover sheet and the downstream side cover sheet, an upper cover closing mechanism for closing the upper cover sheet, and a lower cover closing mechanism for closing the lower cover sheet, and both the upper cover closing mechanism and the lower cover closing mechanism are disposed at the downstream of the side cover closing mechanism.

As a preferable scheme, the side cover sheet closing mechanism comprises an upstream side closing cover supporting plate and a downstream side closing cover supporting plate, the upstream side closing cover supporting plate is installed on the conveying frame in a deflection way around a vertical axis, the upstream side closing cover supporting plate is driven by an upstream closing cover deflection power device to deflect from outside to inside, the upstream side closing cover supporting plate deflects between an upstream avoiding station and an upstream closing station, the downstream side closing cover supporting plate is fixed on the conveying frame, the upstream end of the downstream side closing cover supporting plate is obliquely opened towards outside, the side cover sheet closing mechanism has a reasonable structure, firstly, a packing box is contacted with the upstream end of the downstream side closing cover supporting plate which is obliquely opened towards outside in the conveying process, so as to realize automatic closing, when the packing box stops conveying, the upstream side closing cover supporting plate deflects to push the upstream side cover sheet to close from outside inwards, and the side cover sheet closing mechanism has a simple and reasonable structure, the action is reliable.

Preferably, the lower cover closing mechanism comprises a lower cover closing plate fixed on the conveyor frame, the upstream section of the lower cover closing plate is provided with an inclined contact closing inclined plane, the upstream end of the contact closing inclined plane is provided with a tip end convenient to insert into the lower part of the lower cover, the upper cover closing mechanism comprises an upper cover pressing rod fixed on the conveyor frame, the upper cover pressing rod is positioned on the outer side of the downstream side closing cover supporting plate, the upstream end of the upper cover pressing rod is inclined and opened towards the transverse outer side, after the structure is adopted, the lower cover closing plate is inserted into the bottom of the lower cover during the conveying process of the packing box, then the tip end and the contact closing inclined plane are used for gradually realizing the closing of the lower cover, meanwhile, the upstream end of the upper cover pressing rod is also inclined towards the transverse outer side during the conveying process, so that the opened upper cover is also gradually pressed downwards for closing, the whole upper cover plate and the whole lower cover plate automatically complete closing, and the action is stable and reliable.

As a preferable scheme, the heat sealing device comprises two heat sealing heads driven by a heat sealing power device to slide transversely, the two heat sealing heads are respectively positioned at two ends of the packaging box and at the downstream section of the circulating conveying chain, and two side pressure circulating conveying belts are arranged at the downstream end of the circulating conveying chain on the conveying rack; the heat-sealing head is located at the upper reaches of the two side pressure circulating conveyer belts, the two side pressure circulating conveyer belts are matched and extruded at the two ends of the packaging box, the heat-sealing device heats and seals the joint of the upper cover plate and the lower cover plate by utilizing the two transversely sliding heat-sealing heads, then the sealed packaging box can enter the space between the two side pressure circulating conveyer belts, auxiliary extrusion is carried out by the side pressure circulating conveyer belts, certain extrusion force is provided for the heat-sealing part, and the heat-sealing effect is better.

After the technical scheme is adopted, the invention has the effects that: the cake automatic box sealing packaging machine 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 conveying 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 machine frame is arranged on the conveying rack and located on the upstream side of the toothed chain conveying device, 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 face of the storage bin, and a box opening device which is used for taking out the packing boxes one by one, moving the packing boxes into the placement area and opening the boxes is arranged between the discharge port of the storage bin and the upstream end of the toothed chain conveying device, so that the stacked packing boxes in the storage bin can be taken out one by one through the box opening device and placed in the placement area and then opened and unfolded; the subsequent cake packing is convenient; an uncovering and boxing station is arranged on the conveyor frame and at the downstream of the placement area, one end of a packing box positioned at the uncovering and boxing station is a box loading end, the other end of the packing box is a blocking end, an uncovering mechanism and a blocking and positioning mechanism are arranged on the conveyor frame and positioned at the uncovering and boxing station, and the uncovering mechanism is close to the box loading end and is used for opening an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at the end part of the packing box; the blocking and positioning mechanism is close to the blocking end and is used for blocking and positioning the loaded cakes; therefore, the upper cover plate, the lower cover plate, the upstream side cover plate and the downstream side cover plate can be opened by the cover opening mechanism, so that the box packing end is opened, the cakes can be conveniently plugged into the packing box, and the blocking and positioning mechanism is used for blocking and positioning the cake feeding position; then the packing carton is driven intermittent type nature by profile of tooth chain conveyor and is moved downstream, the low reaches that lies in the dress box station that uncaps in the conveyer frame are provided with the upper cover plate, lower cover plate, upper reaches side cover plate and the downstream side cover plate that close the packing carton both ends and close and cover the mechanism, utilize and close and cover the mechanism and just can close upper cover plate, lower cover plate, upper reaches side cover plate and downstream side cover plate, finally heat-seal through sealing device, thereby accomplish a box packing, whole process is automatic operation, the action is reliable and stable, profile of tooth chain conveyor drives intermittent type nature action and can guarantee action beat and serialization production, realized the automatic box packing that seals in the cake packaging process, and the efficiency is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of the structure of an embodiment of the present invention;

FIG. 2 is a perspective view of the storage bin and the opening device;

FIG. 3 is another perspective view of the magazine and the opening device;

FIG. 4 is a perspective view of the upper deflection takeout mechanism;

FIG. 5 is an enlarged schematic view of FIG. 1 at A;

FIG. 6 is a perspective view with the storage bin and the box opener hidden;

FIG. 7 is an enlarged schematic view of FIG. 6 at B;

FIG. 8 is a perspective view of the lid closing mechanism and the heat seal device;

in the drawings: 1. a conveyor frame; 2. a toothed chain conveyor; 3. a conveying motor; 4. a box taking machine frame; 5. a storage bin; 51. a discharge port; 52. a material supplementing port; 53. an extrusion mechanism; 54. a material storage platform; 6. a box opening device 6; 61. an upper deflection cassette-taking mechanism 61; 611. first hinge shaft 611; 612 second articulation axis; 613. an upper deflection swing arm; 614. a guide arm; 615. a guide sleeve; 616. a guide shaft; 617. a movable shaft; 618. an upper sucker component; 619. a reciprocating yaw drive; 6191. a yaw drive motor; 6192. a drive wheel; 6193. a first drive link; 6194. a second drive link; 62. a lower deflection suction mechanism; 621. a lower base; 622. a downward-biased swing arm; 623. a lower yaw drive device; 624. a lower sucker assembly; 7. a cover opening mechanism; 71. a supporting plate is opened on the upstream side; 72. a downstream side cover supporting plate; 73. an upstream uncap deflection power device; 74. a downstream uncap deflection power device; 75. a first upper cover supporting plate; 76. a first lower cover supporting plate; 8. a blocking positioning mechanism; 81. a second upper cover supporting plate; 82. a second lower cover supporting plate; 83. blocking the positioning plate; 84. a blocking positioning power device; 9. a side flap closing mechanism; 91. a downstream side closing cover supporting plate; 921. a bending section; 922. an inclined guide part; 92. an upstream side closing cover supporting plate; 93. an upstream closure deflection power unit; 10. a lower lid closing mechanism; 101. a lower flap closure panel; 102. contacting the closed ramp; 103. a tip; 11. a heat sealing device; 111. heat sealing; 112. a heat-sealing power device; 113. side pressure circulating conveyer belt; 12. an upper cover plate compression bar; 13. packaging boxes; 131. an upper cover plate; 132. a lower cover plate; 133. an upstream side cover sheet; 134. a downstream-side cover sheet; 14. a guide plate; 15. and an upper limiting pressure rod.

Detailed Description

The present invention is described in further detail below with reference to specific examples.

The upstream and downstream in this embodiment are determined in the conveying direction of the packing box 13, and the position that passes first is the upstream and the position that passes later is the downstream, and therefore, as shown in fig. 1, the right side in the figure is the upstream and the left side is the downstream.

As shown in fig. 1 to 8, an automatic cake box sealing and packaging machine comprises a conveying rack 1, wherein a toothed chain conveying device 2 is mounted on the conveying rack 1, the toothed chain conveying device 2 comprises two parallel circulating conveying chains driven by a conveying motor 3, 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 for conveniently placing a packaging box 13; the circulating conveying chain is driven by the conveying motor 3 to intermittently convey the materials one by one station one by one, so that the working beat can be ensured.

As shown in fig. 3, a box taking machine frame 4 is installed on the machine frame at the upstream side of the toothed chain conveying device 2, a storage bin 5 which facilitates overlapping placement of the packing boxes 13 is arranged on the box taking machine frame 4, a discharge hole 51 is formed in the side face of the storage bin 5, and a box opening device 6 which takes out the packing boxes 13 one by one and moves the packing boxes into a placement area to open the boxes is arranged between the discharge hole 51 of the storage bin and the upstream end of the toothed chain conveying device 2.

The storage bin in the embodiment comprises a storage platform 54 arranged on the box taking machine frame 4, a housing is fixed above the storage platform 54, a storage space is formed between the housing and the storage platform 54, one side of the housing is a discharge hole 51, the other side of the housing is a material supplementing hole 52, a flange structure for blocking the edge of the packing box 13 is arranged on one side of the discharge hole 51 on the housing, a squeezing mechanism 53 for squeezing the packing box 13 in the storage space to the flange structure is arranged on one side of the material supplementing hole 52 on the storage platform 54 in a sliding manner, the flange structure is a baffle strip arranged at the edge of the discharge hole 51, the squeezing mechanism 53 adopts a passive squeezing mode, the storage platform 54 is arranged to be obliquely arranged, therefore, the squeezing mechanism 53 adopts a squeezing block which is arranged on the discharge platform in a sliding manner, the packing box 13 is squeezed by the gravity of the squeezing block, and the packing box 13 is ensured to be always attached to the discharge hole 51, thereby ensuring that one package 13 can be sucked.

The box opening device 6 comprises an upper deflection box taking mechanism 61 which is arranged on the box taking machine frame 4 in a deflection way and takes out the packing boxes 13 in the storage bin 5 and moves the packing boxes into the placing area; the upper deflection box taking mechanism 61 deflects and switches between a box taking station and a box placing station; as shown in fig. 2-4, said upper deflecting box-taking mechanism 61 comprises a first hinging shaft 611 and a second hinging shaft 612 arranged on said box-taking frame 4, the first hinge shaft 611 connects one end of the upper swing arm 613, the second hinge shaft 612 is positioned higher than the first hinge shaft 611, a guide arm 614 is hinged on the second hinge shaft 612, a guide sleeve 615 is arranged on the guide arm 614, a guide shaft 616 is slidably mounted in the guide sleeve 615, one end of the guide shaft 616 penetrates through the guide sleeve 615, the other end of the guide shaft 616 is hinged with the other end of the upper swing arm 613 through a movable shaft 617, the guide shaft 616 and the upper swing arm 613 intersect to form an obtuse angle, the movable shaft 617 is provided with an upper suction cup assembly 618 for sucking the packaging box 13 in the storage bin 5, and the upper suction cup assembly 618 adopts the existing structure and adopts a frame on which a plurality of suction cups are fixed to realize negative pressure suction; and a reciprocating deflection driving device 619 for driving the upper deflection swinging arm 613 to reciprocate between the box taking station and the box placing station is arranged on the box taking machine frame 4. Therefore, in the deflection process of the deflection arm, the guiding shaft 616 not only moves axially along the guiding sleeve 615, but also deflects around the second hinge shaft 612 along with the guiding arm 614, and the guiding shaft 616 drives the movable shaft 617 to deflect itself in the deflection process, so that the direction of the sucker assembly is changed, so that the sucker assembly is correspondingly matched with the position of the discharge port 51 when in a box taking station, and deflects to a box placing position when in the box placing station.

In this embodiment, the reciprocating swing driving device 619 preferably includes a swing driving motor 6191 fixed on the box taking frame 4, a driving wheel 6192 driven by the swing driving motor 6191 is rotatably mounted on the box taking frame 4, a driving shaft is eccentrically mounted on the driving wheel 6192, one end of a first driving connecting rod 6193 is hinged to the driving shaft, the other end of the first driving connecting rod 6193 is hinged to a second driving connecting rod 6194, and the second driving connecting rod 6194 is fixedly connected to the first hinge shaft 611. Of course, the reciprocating yaw driving device 619 may also be configured as a yaw cylinder, for example, and the yaw driving motor 6191 may be used to smooth the yaw.

A lower deflection suction mechanism 62 is arranged between two circulating conveying chains on the conveying rack 1, the lower deflection suction mechanism 62 deflects and switches up and down between an avoiding station and a suction station, the lower deflection suction mechanism 62 sucks the bottom of the packing box 13 at the suction station, the box opening device 6 is adopted, the box opening can be completed in the action process of sucking the packing box 13, the upper deflection box taking mechanism 61 sucks one packing box 13 which is stacked on the outermost side and deflects to a box placing station, the lower deflection suction mechanism deflects upwards and sucks the bottom of the packing box 13 in the deflection process, so that the upper deflection box taking mechanism 61 and the lower deflection suction mechanism respectively suck the upper surface and the lower surface of the packing box 13 and generate relative displacement in the left-right direction and the up-down direction in the deflection process, the unfolding of the packing box 13 is realized, and finally the upper deflection box taking mechanism 61 releases the upper surface of the packing box 13, and the lower deflection suction mechanism drives the packing box 13 to be placed in the placing area, so that the whole box taking and opening process is completed in the deflection process, the efficiency is high, and the action is reliable.

In this embodiment, the lower swing suction mechanism 62 includes a lower base 621 and a lower swing arm 622, the lower base 621 is fixed on the conveying frame 1, one end of the lower swing arm 622 is installed on the lower base 621 in a vertically swinging manner around the horizontal hinge shaft, a lower swing driving device 623 for driving the lower swing arm 622 to swing is arranged between the conveying frame 1 and the lower swing arm 622, and a lower suction disc assembly 624 for sucking the bottom of the packing box 13 is installed at the other end of the lower swing arm 622. The lower swing driving device 623 swings by a swing cylinder, one end of the swing cylinder is hinged to the lower base 621, and the other end is hinged to the lower swing arm 622.

An opening and boxing station is arranged on the conveyor frame 1 and at the downstream of the placement area, one end of a packing box 13 positioned at the opening and boxing station is a boxing end, the other end of the packing box is a blocking end, an opening mechanism 7 and a blocking and positioning mechanism 8 are arranged on the conveyor frame 1 positioned at the opening and boxing station, and the opening mechanism 7 is close to the boxing end and used for opening an upper cover plate 131, a lower cover plate 132, an upstream side cover plate 133 and a downstream side cover plate 134 at the end part of the packing box 13; the blocking and positioning mechanism 8 is close to the blocking end and used for blocking and positioning the loaded cakes;

as shown in fig. 7, the blocking and positioning mechanism 8 includes a blocking and positioning plate 83, a second upper cover supporting plate 81 and a second lower cover supporting plate 82, the second upper cover supporting plate 81 and the second lower cover supporting plate 82 are fixed on the conveyor frame 1 and have the same structure as the first upper cover supporting plate 75 and the first lower cover supporting plate 76, respectively, and the blocking and positioning plate 83 is slidably mounted on the conveyor frame 1 and located between the second upper cover supporting plate 81 and the second lower cover supporting plate 82; the size of the blocking positioning plate 83 is matched with the end opening of the packing box 13, the blocking positioning plate 83 is driven by the blocking positioning power device 84 to slide between the blocking positioning station and the avoiding station, the blocking positioning mechanism 8 can firstly open the upper cover sheet 131 and the lower cover sheet 132 through the second upper cover supporting plate 81 and the second lower cover supporting plate 82 in the conveying process, so that the sliding of the blocking positioning plate 83 is facilitated, the opened upper cover sheet 131 and the opened lower cover sheet 132 can also keep an unfolded state to facilitate the closing of a subsequent cover closing mechanism, and the situation that the upper cover sheet 131 and the lower cover sheet 132 cannot cover the upstream side cover sheet 133 and the downstream side cover sheet 134 when in other states can also be avoided.

As shown in fig. 5, the lid opening mechanism 7 includes a first upper lid-opening support plate 75 and a first lower lid-opening support plate 76 fixed to the conveyor frame 1, and upstream ends of the first upper lid-opening support plate 75 and the first lower lid-opening support plate 76 are closed to each other, thereby forming a closed package, and the upper cover sheet 131 and the lower cover sheet 132 of the packing box 13 are opened when passing through the first upper lid-opening support plate 75 and the first lower lid-opening support plate 76; an upstream side cover opening supporting plate 71 and a downstream side cover opening supporting plate 72 are installed on the conveying rack 1 in a deflecting mode around a vertical axis, the upstream side cover opening supporting plate 71 and the downstream side cover opening supporting plate 72 are driven by an upstream cover opening deflecting power device 73 and a downstream cover opening deflecting power device 74 respectively to deflect from inside to outside, the upstream cover opening deflecting power device 73 drives the upstream side cover opening supporting plate 71 to deflect between an upstream cover opening station and an upstream avoiding station, and in the embodiment, servo motors are adopted by the upstream cover opening deflecting power device 73 and the downstream cover opening deflecting power device 74. The downstream uncovering deflection power device 74 drives the downstream uncovering supporting plate 72 to deflect between a downstream uncovering station and a downstream avoiding station, and the upstream side uncovering supporting plate 71 is outwards pulled to open the upstream side cover sheet 133 when deflected from the upstream avoiding station to the upstream uncovering station; the downstream side cover opening supporting plate 72 is shifted outwards when deflected from a downstream avoiding station to a downstream cover opening station, the structure of the cover opening mechanism 7 is reasonable, the first upper cover opening supporting plate 75 and the first lower cover opening supporting plate 76 are matched with each other to be capable of expanding the upper cover sheet 131 and the lower cover sheet 132 in the conveying process of the packing box 13, and when the packing box 13 moves to be conveyed at intervals one by one, therefore, when the packing box 13 reaches the cover opening station, the conveying of the packing box 13 is stopped temporarily, the upper cover sheet 131 and the lower cover sheet 132 are already expanded, and then the upstream side cover opening supporting plate 71 and the downstream side cover opening supporting plate 72 are deflected from inside to outside, so that the upstream side cover sheet 133 and the downstream side cover sheet 134 can be opened, the box end is completely opened finally, the cake pushing is convenient, and the whole process is quick and accurate in action.

In order to make the state of the packing box 13 more stable in the conveying process, an inclined guide plate 14 is arranged on the conveying rack 1 at the downstream side of the box placing station to ensure that the packing box 13 can accurately fall into the placing area of the box placing station, an upper limiting pressure rod 15 used for contacting with the upper surface of the packing box 13 is further arranged on the conveying rack 1, and the upper limiting pressure rod 15 can ensure that the packing box 13 cannot jump up and down in the processes of opening and closing the cover.

As shown in fig. 8, a cover closing mechanism for closing the upper cover sheet 131, the lower cover sheet 132, the upstream side cover sheet 133 and the downstream side cover sheet 134 at the two ends of the packing box 13 is arranged on the conveyor frame 1 downstream of the cover opening and packing station; in this embodiment, the upper and lower flaps 131 and 132 are on the outside and cover the upstream and downstream flaps 133 and 134.

The cover closing mechanism comprises a side cover piece closing mechanism 9 for closing the upstream side cover piece 133 and the downstream side cover piece 134, an upper cover piece 131 closing mechanism for closing the upper cover piece 131 and a lower cover piece closing mechanism 10 for closing the lower cover piece 132, and the upper cover piece 131 closing mechanism and the lower cover piece closing mechanism 10 are both arranged at the downstream of the side cover piece closing mechanism 9, so that the upstream side cover piece 133 and the downstream side cover piece 134 are firstly closed and then the upper cover piece 131 and the lower cover piece 132 are closed when the cover is closed, and therefore the cover closing requirement is met.

As shown in fig. 8, the side flap closing mechanism 9 includes an upstream side closing cover stay 92 and a downstream side closing cover stay 91, the upstream side closed cover supporting plate 92 is installed on the conveying frame 1 in a deflection way around a vertical axis, the upstream side closed cover supporting plate 92 is driven by an upstream closed cover deflection power device 93 to deflect from outside to inside, the upstream side closing cover supporting plate 92 swings between the upstream avoiding station and the upstream closing cover station, wherein, the end of the upstream side closing cover supporting plate 92 is provided with a bending part 921 bending downstream, the end of the bent portion 921 is formed with an inclined guide portion 922 inclined outward, so that when the upstream side closing cover stay 92 swings, the inclined guide portion 922 contacts the upstream side cover sheet 133 first, and then, gradually contacted by the bent portion 921, the upstream side cover sheet 133 is restrained directly by the bent portion 921 at the time of final deflection into position, and then covers the upstream side cover sheet 133 when the upper cover sheet 131 and the lower cover sheet 132 are closed.

The downstream side closes and covers fagging 91 and is fixed in on the conveyor frame 1, the upstream end that the fagging 91 was closed to the downstream side inclines to open to the outside, and this side cap piece closing mechanism 9 is rational in infrastructure, and at first, packing carton 13 can close the upstream end contact of fagging 91 outside skew on with the downstream side in the in-process of carrying to realize automatic closure, and when packing carton 13 stopped to carry, the upstream side closed and covers fagging 92 and can deflect and thereby outside-in promotes upstream side cover piece 133 and close, and this side cap piece closing mechanism 9 is simple in structure reasonable, and the action is reliable.

The lower flap closing mechanism 10 includes a lower flap closing plate 101 fixed to the conveyor frame 1, an upstream section of the lower flap closing plate 101 is provided with an inclined contact closing slope 102, an upstream end of the contact closing slope 102 is provided to facilitate insertion of a tip 103 of a lower portion of the lower flap 132, and the contact closing slope 102 exists to cause the tip 103 to be gradually raised after being inserted into the bottom of the lower flap 132, thereby closing the lower flap 132. And the closing mechanism of the upper cover sheet 131 includes the upper cover sheet pressing rod 12 fixed on the conveyer frame 1, the said upper cover sheet pressing rod 12 locates at the outside of the downstream side closing cover stay 91, the upstream end of the said upper cover sheet pressing rod 12 is inclined to open to the outside horizontally, after adopting the above-mentioned structure, the packing box 13 is in the course of conveying, the lower cover sheet closing plate 101 will be inserted into the bottom of the lower cover sheet 132, then utilize the pointed end 103 and contact closing inclined plane 102 to realize closing of the lower cover sheet step by step, meanwhile in the course of conveying, the upstream end of the upper cover sheet pressing rod 12 is also inclined to the outside horizontally, thus will contact with the upper cover sheet 131 opened and press and close to the inside gradually, the whole upper cover sheet 131 and lower cover sheet 132 finish closing automatically, the movements are stable and reliable.

And a heat sealing device 11 for performing heat sealing on the closed cover sheets is also arranged on the conveyor frame 1 at the downstream of the cover closing mechanism. The heat sealing device 11 comprises two heat sealing heads 111 driven by a heat sealing power device 112 to slide transversely, the two heat sealing heads 111 are respectively positioned at two ends of the packaging box 13 and at the downstream section of the circulating conveying chain, and two side pressure circulating conveying belts 113 are arranged at the downstream end of the circulating conveying chain on the conveying rack 1; the heat-sealing device 11 utilizes the two heat-sealing heads 111 which slide transversely to heat and seal the joint of the upper cover sheet 131 and the lower cover sheet 132, and then the sealed package 13 enters between the two side pressure circulating conveyor belts 113 and is extruded by the side pressure circulating conveyor belts 113 in an auxiliary manner, so that certain extrusion force is provided for the heat-sealing part, and the heat-sealing effect is better.

The gas circuit system, the actuating devices such as the servo motor and the like, the gear transmission mechanism and the screw and nut mechanism mentioned in the embodiment are all the conventional technologies at present, the specific structures and principles of the cylinder, the motor and other transmission mechanisms and other designs are disclosed in detail in the fifth edition of the mechanical design manual printed for the twenty-eighth edition in the fifth edition of Beijing in 4 months of 2008, and belong to the prior art, the structure of the gas circuit system belongs to the prior art, the structure of the gas circuit system is clearly clarified, the vacuum element, the gas circuit and the program control are disclosed in detail in the modern practical pneumatic technology 3 rd edition SMC training teaching material published by the mechanical industry publisher in 08 months and 01 days of 2008, the gas circuit structure in the embodiment is also the prior art, and the control and the travel switch of the motor are also described in detail in the book of Motor drive and speed regulation published by the chemical industry publisher in 07 months and 01 days of 2015, therefore, the circuit and the gas circuit connection are clear. The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims (10)

1. An automatic cake box sealing and 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 conveying 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 method is characterized in that: a box taking machine frame is arranged on the conveying rack and positioned on the upstream side of the tooth-shaped chain conveying device, a storage bin convenient for overlapping placement of the packing boxes is arranged on the box taking machine frame, a discharge port is arranged on the side surface of the storage bin, and a box opening device which is used for taking out the packing boxes one by one, moving the packing boxes into a placement area and opening the packing boxes is arranged between the discharge port of the storage bin and the upstream end of the tooth-shaped chain conveying device;

an uncovering and boxing station is arranged on the conveyor frame and at the downstream of the placement area, one end of a packing box positioned at the uncovering and boxing station is a box loading end, the other end of the packing box is a blocking end, an uncovering mechanism and a blocking and positioning mechanism are arranged on the conveyor frame and positioned at the uncovering and boxing station, and the uncovering mechanism is close to the box loading end and is used for opening an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at the end part of the packing box; the blocking and positioning mechanism is close to the blocking end and is used for blocking and positioning the loaded cakes;

a cover closing mechanism for closing an upper cover plate, a lower cover plate, an upstream side cover plate and a downstream side cover plate at two ends of the packing box is arranged on the conveying rack at the downstream of the cover opening and packing station;

and a heat sealing device for performing heat sealing on the closed cover plate is also arranged at the downstream of the cover closing mechanism on the conveyor frame.

2. The automatic cake box sealing and packaging machine as claimed in claim 1, wherein: the box opening device comprises an upper deflection box taking mechanism which is arranged on the box taking frame in a deflection way and is used for taking out the packing boxes in the storage bin and moving the packing boxes to the placing area; 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 up and down between an avoiding station and a suction station, and sucks the bottom of the packaging box when sucking the station.

3. The automatic cake box sealing and packaging machine as claimed in claim 2, 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 of absorbing the packing carton in the storage silo on the loose axle, get box rack and install the reciprocal beat drive arrangement of drive upper inclined to one side swing arm at getting box station and putting box station reciprocating motion.

4. The automatic cake box sealing and packaging machine as claimed in claim 3, 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.

5. The automatic cake box sealing and packaging machine as claimed in claim 4, wherein: the cover opening mechanism comprises a first upper cover opening supporting plate and a first lower cover opening supporting plate which are fixed on the conveyor rack of the conveyor, the upstream ends of the first upper cover-opening supporting plate and the first lower cover-opening supporting plate are mutually folded, the conveying rack is provided with an upstream side cover-opening supporting plate and a downstream side cover-opening supporting plate which are eccentrically arranged around a vertical axis, the upstream side cover opening supporting plate and the downstream side cover opening supporting plate are respectively driven by an upstream cover opening deflection power device and a downstream cover opening deflection power device to deflect from inside to outside, the upstream uncapping deflection power device drives the upstream side uncapping support plate to deflect between the upstream uncapping station and the upstream avoiding station, the downstream uncapping deflection power device drives the downstream uncapping supporting plate to deflect between a downstream uncapping station and a downstream avoiding station, and the upstream side uncapping supporting plate is outwards pulled open the upstream side cover sheet when deflected from the upstream avoiding station to the upstream uncapping station; and the downstream side cover opening supporting plate is used for outwards pulling the downstream side cover sheet when deflecting from the downstream avoiding station to the downstream cover opening station.

6. The automatic cake box sealing and packaging machine as claimed in claim 5, wherein: the blocking positioning mechanism comprises a blocking positioning plate, a second upper cover opening supporting plate and a second lower cover opening supporting plate, the second upper cover opening supporting plate and the second lower cover opening supporting plate are fixed on the conveying rack and have the same structures as the first upper cover opening supporting plate and the first lower cover opening supporting plate respectively, and the blocking positioning plate is slidably mounted on the conveying rack and is positioned between the second upper cover opening supporting plate and the second lower cover opening supporting plate; block the locating plate size with the tip opening adaptation of packing carton, block the locating plate and block the location power device drive by blocking and slide between blocking the location station and dodging the station.

7. The automatic cake box sealing and packaging machine as claimed in claim 6, wherein: the cover closing mechanism comprises a side cover piece closing mechanism used for closing the upstream side cover piece and the downstream side cover piece, an upper cover piece closing mechanism used for closing the upper cover piece and a lower cover piece closing mechanism used for closing the lower cover piece, and the upper cover piece closing mechanism and the lower cover piece closing mechanism are both arranged at the downstream of the side cover piece closing mechanism.

8. The automatic cake box sealing and packaging machine as claimed in claim 7, wherein: the side cap piece closing mechanism comprises an upstream side closing cap supporting plate and a downstream side closing cap supporting plate, the upstream side closing cap supporting plate is installed on the conveying rack in a deflection mode around a vertical axis, the upstream side closing cap supporting plate is driven by an upstream closing cap deflection power device to deflect from outside to inside, the upstream side closing cap supporting plate deflects between an upstream avoiding station and an upstream closing cap station, the downstream side closing cap supporting plate is fixed on the conveying rack, and the upstream end of the downstream side closing cap supporting plate is obliquely opened towards the outside.

9. The automatic cake box sealing and packaging machine as claimed in claim 8, wherein: the lower cover plate closing mechanism comprises a lower cover plate closing plate fixed on the conveyor frame, the upstream section of the lower cover plate closing plate is arranged into an inclined contact closing inclined plane, the upstream end of the contact closing inclined plane is arranged into a tip end which is convenient to insert into the lower part of the lower cover plate, the upper cover plate closing mechanism comprises an upper cover plate pressing rod fixed on the conveyor frame, the upper cover plate pressing rod is positioned on the outer side of the downstream side closing cover plate, and the upstream end of the upper cover plate pressing rod is inclined and opened towards the transverse outer side.

10. The automatic pastry box-sealing and packaging machine as claimed in claim 9, wherein: the heat sealing device comprises two heat sealing heads driven by a heat sealing power device to slide transversely, the two heat sealing heads are respectively positioned at two ends of the packaging box and at the downstream section of the circulating conveying chain, and two side pressure circulating conveying belts are arranged at the downstream end of the circulating conveying chain on the conveying rack; the heat sealing head is positioned at the upper reaches of the two side pressure circulating conveyer belts, and the two side pressure circulating conveyer belts are matched to extrude the two ends of the packaging box.

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