CN214383429U - Box opening mechanism - Google Patents

Abstract

The utility model discloses a box opening mechanism, which comprises a box opening rack part, a base translation system, a small-page sucker component and a large-page sucker component, wherein a crossbeam is arranged on the box opening rack part, a base linear slide rail is arranged on the crossbeam along the length direction of the crossbeam, a base is arranged on the base linear slide rail through a base slider, the base translation system is arranged on the box opening rack part and connected with the base, and the base translation system drives the base to move back and forth along the base linear slide rail through the base slider; the small-page sucker component is fixedly arranged on the base, the large-page sucker component is hinged to the base through the mounting seat, the large-page sucker component is fixedly connected with the mounting seat, the mounting seat is hinged to the base through a first connecting pin shaft, a connecting rod is connected between the mounting seat and the cross beam, and two ends of the connecting rod are hinged to the mounting seat and the cross beam respectively. The utility model discloses realize high-speed automatic unpacking for unpacking speed is faster and more steady, has reduced the case rate of falling, has improved production efficiency.

Description

Box opening mechanism

Technical Field

The utility model relates to the technical field of packaging machinery, concretely relates to unpacking mechanism.

Background

The box opening products in the existing market are various in types, but still mainly low-speed, and cannot be matched with and adapt to the speed of upstream and downstream production equipment, so that the production efficiency of the existing production line is limited, and the market urgently needs a high-speed box opening requirement.

Disclosure of Invention

The to-be-solved technical problem of the utility model is, to the above-mentioned defect that prior art exists, provide an unpacking mechanism, realize high-speed automatic unpacking for unpacking speed is faster and more steady, has reduced the case rate of falling, has improved production efficiency.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a box opening mechanism comprises a box opening rack part, a base translation system, a small-page sucker component and a large-page sucker component, wherein a cross beam is arranged on the box opening rack part, a base linear slide rail is arranged on the cross beam along the length direction of the cross beam, a base is arranged on the base linear slide rail through a base slide block, the base translation system is arranged on the box opening rack part and is connected with the base, and the base translation system drives the base to move back and forth along the base linear slide rail through the base slide block; the small-page sucker component is fixedly arranged on the base, the large-page sucker component is hinged with the base through a mounting seat, the large-page sucker component is fixedly connected with the mounting seat, the mounting seat is hinged with the base through a first connecting pin shaft, a connecting rod is connected between the mounting seat and the cross beam, and two ends of the connecting rod are respectively hinged with the mounting seat and the cross beam through a third connecting pin shaft;

when the base sliding block is at the initial position, the small-page sucker component and the large-page sucker component are oppositely arranged at two sides of a box blank reserved gap and are respectively used for sucking small pages and large pages of a carton blank, after the base translation system drives the base sliding block to move forwards along the base linear sliding rail, the small-page sucker translates along with the base, and the large-page sucker component rotates 90 degrees along with the translation of the base; the small-page sucker component and the large-page sucker component pull the box blank from the small pages and the large pages on two sides of the box blank, and the flat box blank is pulled to be in a shape like a Chinese character 'kou'.

According to the technical scheme, a vertical moving device is arranged between the box opening rack component and the cross beam; the vertical moving device drives the cross beam to move up and down;

the vertical moving device comprises an upright post, an upright post linear slide rail fixed on the upright post, a motor reducer base, a motor reducer and a rack fixed on the upright post, wherein the motor reducer is fixedly arranged on the unpacking rack component through the motor reducer base; the motor reducer drives the upright post and the cross beam to vertically move up and down through the gear and the rack.

According to the technical scheme, little page of sucking disc subassembly includes little page or leaf swing arm base, little page or leaf swing arm, little page or leaf cylinder mounting bracket, cylinder, sucking disc connecting plate and sucking disc, and little page or leaf swing arm passes through little page or leaf swing arm base and base fixed connection, and the upper end and the little page or leaf swing arm of little page or leaf sucking disc arm are connected, and the cylinder sets firmly on little page or leaf sucking disc arm through little page or leaf cylinder mounting bracket, and the sucking disc connecting plate is connected with the piston rod of cylinder, and the sucking disc arranges on the sucking disc connecting plate.

According to the technical scheme, the cylinder is fixedly arranged on the small-page cylinder mounting frame through the cylinder fixing plate.

According to the technical scheme, the large-page sucker component comprises a large-page swing arm, a large-page sucker arm, a large-page cylinder mounting frame, a cylinder, a sucker connecting plate and a sucker, the large-page swing arm is fixedly connected with a connecting mounting seat, the upper end of the large-page sucker arm is connected with the large-page swing arm, the cylinder is arranged on the large-page sucker arm through the large-page cylinder mounting frame, the sucker connecting plate is connected with a piston rod of the cylinder, and the sucker is arranged on the sucker connecting plate.

According to the technical scheme, the cylinder is fixedly arranged on the large-page cylinder mounting frame through the cylinder fixing plate.

According to the technical scheme, a movement adjusting and locking device is connected between the large-surface sucker arm and the large-surface swing arm, and the large-surface sucker arm moves back and forth along the length of the large-surface swing arm through the movement adjusting and locking device to adjust the position.

According to the technical scheme, the movement adjustment locking device comprises a sliding block, a bearing arranged on the sliding block, a connecting guide rod, a sliding block locking device and a transition frame, wherein the sliding block provided with the bearing is arranged on a large-area swing arm and can slide along the length direction of the large-area swing arm;

the slider locking device comprises a connecting mounting plate, a screw rod and a pressing handle, the connecting mounting plate is fixedly arranged on the large-area sucker arm, the pressing handle is hinged to the connecting mounting plate, one end of the screw rod is connected with the pressing handle, the other end of the screw rod is fixedly connected with the transition frame, and a return spring is connected between the screw rod and the pressing handle.

According to the technical scheme, the large-page cylinder mounting frame is arranged in a frame of the large-face sucker arm, two ends of the spring guide rod are respectively connected with two sides of the large-face sucker arm, the spring guide rod transversely penetrates through the large-page cylinder mounting frame, and the large-page cylinder mounting frame is hung on the spring guide rod;

according to the technical scheme, the middle of the spring guide rod is connected with the spring partition plate, compression springs are uniformly arranged on two sides of the spring partition plate, the compression springs are sleeved on the spring guide rod, one ends of the compression springs are connected with the spring partition plate, and the other ends of the compression springs are connected with the large-page cylinder mounting frame on the corresponding side.

The number of spring guide bars is two, and two spring guide bars are parallel arrangement respectively in the upper and lower both ends of big page or leaf cylinder mounting bracket.

According to the technical scheme, the number of the spring guide rods is two, and the two spring guide rods are respectively arranged at the upper end and the lower end of the large-page cylinder mounting frame.

According to the technical scheme, a box pressing connecting rod assembly is arranged above a box blank reserved gap between the small-leaf sucker assembly and the large-leaf sucker assembly;

the box pressing connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, a connecting rod pin shaft, a support, a main shaft sleeve, a main shaft locking handle and a box pressing plate, the first connecting rod is fixedly arranged on the base through the small-leaf swing arm, the first connecting rod, the second connecting rod and the third connecting rod are hinged through the connecting rod pin shaft in sequence and can rotate around the corresponding connecting rod pin shaft, and the third connecting rod is connected with the support through the main shaft and can rotate around the main shaft; the main shaft sleeve is sleeved on the main shaft and can slide along the main shaft, and the position of the main shaft sleeve on the main shaft is fixed through a main shaft locking handle so as to meet the requirements of different heights of carton blanks; the box pressing plate is fixed on the main shaft sleeve, and the lower end of the box pressing plate is used for pressing a carton blank.

According to the technical scheme, the base translation system is an electric cylinder or a hydraulic cylinder.

The utility model discloses following beneficial effect has:

the utility model discloses realize high-speed automatic unpacking, through little page or leaf sucking disc subassembly and big page or leaf sucking disc subassembly from the box base both sides small page or leaf and big page or leaf pull the box base, pull open into "mouth" font with flat box base for unpacking speed is faster and more steady, has reduced the case rate of falling, has improved production efficiency, and base translation system combines the connecting rod to make big page or leaf sucking disc subassembly slew velocity faster.

Drawings

FIG. 1 is a schematic structural diagram of a box opening mechanism in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an unpacking rack component according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a small-leaf suction cup assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a large-page suction cup assembly according to an embodiment of the present invention;

FIG. 5 is a front view of a large leaf suction cup assembly with the large face suction cup arm mechanism removed in an embodiment of the present invention;

FIG. 6 is a rear view of FIG. 5;

FIG. 7 is a schematic structural view of a connecting rod assembly of the pressure box according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a folding mechanism in an embodiment of the present invention;

in the figure, 1-a box opening machine frame component, 2-a small-page sucker component, 3-a large-page sucker component and 4-a box pressing connecting rod component;

111-beam, 112-base linear slide rail, 113-blocking component, 114-mounting seat, 115-clamping block, 116-trunnion, 117-base translation system and 118-servo motor;

121-upright column, 122-upright column linear slide rail, 123-blocking device, 124-motor reducer base, 125-motor reducer, 126-rack, 127-drag chain system;

131-base sliding block, 132-base, 133-first connecting pin shaft, 134-mounting base, 135-connecting rod, 136-third connecting pin shaft;

201-small leaf swing arm base, 202-small leaf swing arm, 203-small leaf sucker arm, 204-small leaf cylinder mounting rack, 205-sucker connecting plate, 206-cylinder fixing plate, 207-cylinder, 208-sucker;

301-large swing arm, 302-large sucker arm, 303-sliding block, 304-bearing, 305-transition frame, 306-connecting guide rod, 307-sliding block locking device, 308-spring guide rod, 309-compression spring, 310-spring partition plate, 311-large cylinder mounting frame, 312-connecting mounting plate, 313-screw rod and 314-pressing handle;

401-a first connecting rod, 402-a second connecting rod pin, 403-a second connecting rod, 404-a third connecting rod, 405-a support, 406-a spindle, 407-a spindle sleeve, 408-a spindle locking handle, 409-a box pressing plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 to 7, the present invention provides an embodiment of a box opening mechanism, which includes a box opening frame part 1, a base translation system, a small-leaf sucker assembly 2 and a large-leaf sucker assembly 3, wherein the box opening frame part 1 is provided with a beam, the beam is provided with a base linear slide rail along the length direction thereof, the base is arranged on the base linear slide rail through a base slider, the base translation system is arranged on the box opening frame part, the base translation system is connected with the base, and the base translation system drives the base to move back and forth along the base linear slide rail through the base slider; the small-page sucker component is fixedly arranged on the base, the large-page sucker component is hinged with the base through a mounting seat, the large-page sucker component is fixedly connected with the mounting seat, the mounting seat is hinged with the base through a first connecting pin shaft, a connecting rod is connected between the mounting seat and the cross beam, and two ends of the connecting rod are respectively hinged with the mounting seat and the cross beam;

when the base sliding block is at the initial position, the small-page sucker component and the large-page sucker component are oppositely arranged at two sides of a box blank reserved gap and are respectively used for sucking small pages and large pages of a carton blank, the base translation system drives the base sliding block to move forwards along the base linear sliding rail, the small-page sucker translates along with the base, and the large-page sucker component translates along with the base for a distance and rotates for 90 degrees at the same time; the small-page sucker component and the large-page sucker component pull the box blank from the small pages and the large pages on two sides of the box blank, and the flat box blank is pulled to be in a shape like a Chinese character 'kou'.

Base antedisplacement initial stage, little page of sucking disc subassembly removes along with the base, big page of sucking disc subassembly is because the base passes through the connecting rod drive, so its translation time postpones for little page of sucking disc subassembly, from this little page of sucking disc subassembly with the box base before press to big page of sucking disc subassembly on, accomplish little page of sucking disc subassembly and big page of sucking disc subassembly to the centre gripping of box base, the sucking disc forms the vacuum, big page of sucking disc subassembly rotates 90 simultaneously along with the base translation to pull open flat box base into "mouth" font.

Further, a vertical moving device is arranged between the box opening rack component 1 and the cross beam; the vertical moving device drives the cross beam to move up and down;

the vertical moving device comprises an upright post, an upright post linear slide rail 122 fixed on the upright post 121, a motor reducer base, a motor reducer and a rack 126 fixed on the upright post 121, wherein the motor reducer is fixedly arranged on the unpacking rack part through the motor reducer base; the motor reducer drives the upright post and the cross beam to vertically move up and down through the gear and the rack.

Further, little page of sucking disc subassembly includes little page or leaf swing arm base 201, little page or leaf swing arm 202, little page or leaf sucking disc arm 203, little page or leaf cylinder mounting bracket 204, cylinder 207, sucking disc connecting plate 205 and sucking disc 208, little page or leaf swing arm passes through little page or leaf swing arm base and base fixed connection, the upper end and the little page or leaf swing arm of little page or leaf sucking disc arm are connected, the cylinder sets firmly on little page or leaf sucking disc arm through little page or leaf cylinder mounting bracket, the sucking disc connecting plate is connected with the piston rod of cylinder, the sucking disc is arranged on the sucking disc connecting plate.

Further, the cylinder sets firmly on little page or leaf cylinder mounting bracket through the cylinder fixed plate.

Further, big page of sucking disc subassembly 3 includes big face swing arm 301, big face sucking disc arm 302, big page or leaf cylinder mounting bracket 311, cylinder 207, sucking disc connecting plate 205 and sucking disc 208, big face swing arm with be connected mount pad fixed connection, the upper end and the big face swing arm of big face sucking disc arm are connected, the cylinder sets up on big face sucking disc arm through big page or leaf cylinder mounting bracket, sucking disc connecting plate 205 is connected with the piston rod of cylinder, the sucking disc is arranged on the sucking disc connecting plate.

Further, the large-page sucker assembly 3 comprises a plurality of large-page sucker arms 302, the large-page sucker arms 302 are sequentially arranged along the length direction of the large-page swing arm 301, and each large-page sucker arm 302 is internally and correspondingly provided with a large-page cylinder mounting frame 311, a cylinder 207, a sucker connecting plate 205 and a sucker 208.

Furthermore, the number of the large-area sucker arms 302 is 2-3.

Further, the cylinder sets firmly on big page or leaf cylinder mounting bracket through the cylinder fixed plate.

Furthermore, a movement adjusting and locking device is connected between the large-area sucker arm and the large-area swing arm, and the large-area sucker arm moves back and forth along the length of the large-area swing arm through the movement adjusting and locking device to adjust the position.

Further, the movement adjustment locking device comprises a sliding block, a bearing 304 arranged on the sliding block 303, a connecting guide rod 306, a sliding block locking device 307 and a transition frame 305, wherein the sliding block 303 provided with the bearing 304 is arranged on the large-area swing arm 301 and can slide along the length direction of the large-area swing arm, one end of the connecting guide rod is connected with the sliding block, the other end of the connecting guide rod penetrates through the large-area swing arm and the large-area suction disc arm and is fixedly connected with the transition frame through a nut, the sliding block locking device is connected between the transition frame and the large-area suction disc arm, when the sliding block locking device is pressed down, the sliding block and the large-area swing arm are tightly propped, and the positions of the sliding block and the large-area swing arm are relatively fixed to form locking fixation;

the slide block locking device comprises a connecting mounting plate, a screw rod and a pressing handle, the connecting mounting plate is fixedly arranged on the large-area sucker arm, the pressing handle is hinged with the connecting mounting plate, one end of the screw rod is connected with the pressing handle, the other end of the screw rod is fixedly connected with the transition frame through a nut, and a return spring is connected between the screw rod and the pressing handle; when the pressing handle is pulled up, the return spring drives the screw rod and the transition frame to integrally return and move upwards, so that the slide block and the large swing arm are separated from the tightly-pushed state.

Furthermore, the large-page cylinder mounting rack is arranged in the frame of the large-face sucker arm, the spring guide rod transversely penetrates through the large-page cylinder mounting rack, two ends of the spring guide rod are respectively connected with two sides of the large-face sucker arm, and the large-page cylinder mounting rack is hung on the spring guide rod;

furthermore, the middle part of the spring guide rod is connected with a spring partition plate, compression springs are uniformly arranged on two sides of the spring partition plate, the compression springs are sleeved on the spring guide rod, one end of each compression spring is connected with the spring partition plate, and the other end of each compression spring is connected with the large-leaf cylinder mounting frame on the corresponding side;

the number of spring guide bars is two, and two spring guide bars are parallel arrangement respectively in the upper and lower both ends of big page or leaf cylinder mounting bracket.

Further, the number of spring guide rods is two, and two spring guide rods are arranged at the upper end and the lower end of the large-page cylinder mounting frame respectively.

Furthermore, a box pressing connecting rod component 4 is arranged above a box blank reserved gap between the small-leaf sucker component 2 and the large-leaf sucker component 3;

the box pressing connecting rod assembly 4 comprises a first connecting rod 401, a second connecting rod 403, a third connecting rod 404, a connecting rod pin shaft 402, a support 405, a main shaft 406, a main shaft sleeve 407, a main shaft locking handle 408 and a box pressing plate 409, wherein the first connecting rod is fixedly arranged on the base through a small-leaf swing arm, the first connecting rod 401, the second connecting rod 403 and the third connecting rod 404 are sequentially hinged through the connecting rod pin shaft 402 and can rotate around the corresponding connecting rod pin shaft 402, and the third connecting rod 404 and the support 405 are connected through the main shaft 406 and can rotate around the main shaft 406; the main shaft sleeve 407 is sleeved on the main shaft 406 and can slide along the main shaft 406, and the position of the main shaft sleeve 407 on the main shaft 406 is fixed through a main shaft locking handle 408 so as to meet the requirements of different carton blank heights; the box pressing plate 409 is fixed on the spindle sleeve 407, and the lower end of the box pressing plate 409 is used for pressing the carton blanks.

Further, the base translation system is an electric cylinder or a hydraulic cylinder.

Further, the base drives the small-leaf sucker assembly and the large-leaf sucker assembly to translate to a terminal point, the large-leaf sucker assembly completes translation and rotation by 90 degrees at the moment, the box blank is pulled open to be in a shape like a Chinese character 'kou', namely, a box blank unpacking and forming position, and a small-leaf folding mechanism is arranged below the box blank unpacking and forming position; the small page folding mechanism comprises a page folding base 8-1, a first rocker 8-2, a second rocker 8-4, a page folding plate 8-10 and a page folding cylinder 8-9, the page folding cylinder 8-9 is arranged on the page folding base 8-1, the page folding plate 8-10 is respectively hinged with one end of the first rocker 8-2 and one end of the second rocker 8-4, the other end of the first rocker 8-2 and the other end of the second rocker 8-4 are respectively hinged with the page folding base 8-1, and a piston rod of the page folding cylinder 8-9 is hinged with the first rocker 8-2; as shown in fig. 8, fig. 8 is a schematic structural view of the folding mechanism.

The inner side surfaces of the folding plates 8-10 are fixedly provided with folding connecting rods 8-3, and the folding plates 8-10 are respectively hinged with the first rocking bars 8-2 and the second rocking bars 8-4 through the folding connecting rods 8-3.

The folding base 8-1, the first rocker 8-2, the folding connecting rod 8-3 and the second rocker 8-4 are connected end to end, and are connected with each other through 4 pin shafts 8-5 to form a plane four-bar mechanism; a piston rod of the folding cylinder 8-9 is hinged with the first rocker 8-2 through a fisheye joint 8-6; the folding cylinder 8-9 is hinged with the folding base 8-1 through a cylinder trunnion support 8-8; when the piston rod of the folding cylinder 8-9 extends out, the folding plates 8-10 are obliquely arranged, and when the piston rod of the folding cylinder 8-9 retracts, the folding plates 8-10 rotate to be horizontal; the lower ends of the folding plates 8-10 are connected with a folding plate.

Furthermore, the number of the small folding mechanisms is two, and the two small opening and folding mechanisms are oppositely arranged on two sides of the carton opening forming position; when piston rods of folding cylinders 8-9 of the small folding mechanisms of the two box unpacking machines are extended, two folding plates 8-10 are oppositely arranged in a V shape.

Further, the carton opening and folding process comprises the following steps: 1) the base translation system drives the base sliding block to move forwards along the base linear sliding rail, the small-page sucker translates along with the base, and the large-page sucker component translates along with the base for a distance and rotates for 90 degrees at the same time; the small-page sucker component and the large-page sucker component pull the box blank from the small pages and the large pages on the two sides of the box blank, and pull the flat box blank into a square shape; 2) the folding plates 8-10 are obliquely arranged, the vertical moving device drives the pulled box blank to move downwards, and when a small page at the bottom of the box blank is contacted with the folding plates 8-10, a piston rod of the folding cylinder 8-9 begins to retract; the folding plates 8-10 rotate, and simultaneously, the box blank contacts with the folding plates 8-10 to move downwards; the folding plates 8-10 are turned to be horizontal from the inclination, so as to drive the small pages at the bottom of the box blank to be folded to be horizontal, and the folding of the small pages of the box blank is completed.

The utility model discloses a theory of operation: before unpacking, a piston rod of the base translation system 117 is in an extending state, the small-leaf sucker component 2 and the large-leaf sucker component 3 are in a parallel state, piston rods of 3 cylinders 207 on the two sucker components are in a retracting state, a slit is formed in the process, a carton blank is pushed into the slit by a lower box splitting component of the unpacking machine, and the upper part of the carton blank is limited by a box pressing plate 409; at the moment, the sucker cylinder begins to extend out, the sucker respectively sucks the small leaf and the large leaf, then the piston rod of the electric cylinder retracts to drive the small leaf sucker component to translate, the large leaf sucker component translates and rotates, the folded carton blank is pulled open to be in a shape like a Chinese character 'kou', and opening is completed.

A case unpacking mechanism of a case unpacking machine comprises a case unpacking machine frame component 1, a small-leaf sucker component 2, a large-leaf sucker component 3 and a case pressing connecting rod component 4.

The small-page sucker component 2 and the large-page sucker component 3 are respectively connected to a base 132 of the unpacking rack component 1, the base 132 is fixed on a base sliding block 131, and the base 132 slides on a base linear sliding rail 112 under the driving of a base translation system 117, so that the small-page sucker component 2 and the large-page sucker component 3 are driven to translate and rotate. The pressure box connecting rod assembly 4 is connected between the small-leaf sucker assembly 2 and the large-leaf sucker assembly 3.

Furthermore, the box opening machine frame component is provided with a beam component, a stand column component and a sucker component base.

The beam assembly comprises a beam 111, a base linear slide rail 112 fixed on the beam 111, a blocking part 113 of the base linear slide rail 112, a base translation system 117 for driving the base of the sucker assembly to move, and a mounting seat 114 of the base translation system 117. The mounting 114 is fixed to the cross beam 111, and the base translation system 117 is housed in the mounting 114 by the clamping block 115 and can oscillate by means of the trunnions 116.

The upright post assembly comprises an upright post 121, an upright post linear slide rail 122 fixed on the upright post 121, a blocking device 123 of the upright post linear slide rail 122, a motor reducer base 124, a motor reducer 125, a rack 126 fixed on the upright post 121, and a drag chain system 127 for placing cables. The motor reducer 125 is fixed on a motor reducer base 124, the motor reducer base 124 is fixed on a whole machine frame of the case unpacking machine, the upright column linear slide rail 122 is in sliding fit with the motor reducer base 124, the upright column linear slide rail 122 can slide up and down on the motor reducer base 124, sliding power comes from a gear 128 matched with a rack 126, and the gear 128 is fixed at the shaft end of the motor reducer 125.

The suction cup assembly base comprises a base sliding block 131, a base 132, a mounting seat 134 of the large-page suction cup assembly 3, a first connecting pin 133 of the mounting seat 134 and the base 132, a connecting rod 135 for connecting the mounting seat 134 and the cross beam 111, and a third connecting pin 136 of the connecting rod 135 and the mounting seat 134. The base sliding block 131 and the base linear sliding rail 112 are in sliding fit, the base sliding block 131 can slide horizontally on the base linear sliding rail 112, and the sliding power comes from the base translation system 117. The mounting base 134 can be pivoted on the base 132 by means of the first connecting pin 133.

The upright 121 is fixed on the beam 111 through a connecting piece, and the beam assembly, the upright assembly (except for the motor reducer base 124 and the motor reducer 125) and the suction cup assembly base form a whole which can slide up and down under the driving of the motor reducer 125.

Further, the leaflet suction cup assembly 2 comprises a leaflet swing arm base 201, a leaflet swing arm 202, a leaflet suction cup arm 203, a leaflet air cylinder mounting frame 204, an air cylinder fixing plate 206, an air cylinder 207, a suction cup connecting plate 205 and a suction cup 208. The cylinder fixing plate 206 is fixed on the small-leaf cylinder mounting frame 204, the cylinder 207 is fixed on the cylinder fixing plate 206, the sucker 208 is fixed on the sucker connecting plate 205, the sucker connecting plate 205 is connected with a piston rod of the cylinder 207, and the sucker connecting plate 205 and the sucker are driven to move together along with the extension and retraction of the piston rod of the cylinder 205, so that the sucker can suck the carton blank or the sucker is separated from the carton blank.

Further, the large-page suction cup assembly 3 comprises a large-page swing arm 301, a large-page suction cup arm 302, a sliding block 303, a bearing 304 mounted on the sliding block 303, a connecting guide rod 306, a sliding block locking device 307, a transition frame 305, a compression spring 309, a spring guide rod 308 for guiding the compression spring 309, a spring partition plate 310 for partitioning two opposite compression springs 309, a large-page cylinder mounting frame 311, a cylinder fixing plate 206, a cylinder 207, a suction cup connecting plate 205 and a suction cup 208.

The slider 303 mounted with the bearing 304 is provided inside the large swing arm 301, and can slide in the length direction on the large swing arm 301. One end of the connecting guide rod 306 is vertically fixed upwards on the sliding block 303, and the other end passes through the large-area swing arm 301 and the large-area suction disc arm 302 and is fixed on the transition frame 305 through a nut. When the slider locking device 307 is pressed, the entire large-area suction disc arm 302 and the parts mounted therein move upward along with the slider 303, so that the bearing 304 and the inner slide way of the large-area swing arm 301 are pressed against each other, and a locking effect is generated.

The large page cylinder mounting rack 311 is suspended inside the large surface suction cup arm 302 through four spring guide rods 308, the four spring guide rods 308 are divided into an upper group and a lower group, and each group of 2 spring guide rods is connected through a spring partition plate 310 and is fixed relative to the large surface suction cup arm 302. Each group of spring guide rods is penetrated with 2 compression springs 309 which are separated by a spring partition plate 310 and arranged inside the large-page cylinder mounting frame 311, the springs 309 are compression springs which have certain pre-pressure after being mounted, and the pre-pressure of the springs is equal because the two springs are the same, so that the large-page cylinder mounting frame 311 is in a middle floating state. The cylinder fixing plate 206 is fixed on the large-page cylinder mounting frame 311, the cylinder 207 is fixed on the cylinder fixing plate 206, the sucker 208 is fixed on the sucker connecting plate 205, the sucker connecting plate 205 is connected with a piston rod of the cylinder 207, and the sucker connecting plate 205 and the sucker are driven to move together along with the extension and retraction of the piston rod of the cylinder 205, so that the sucker can suck the carton blank or the sucker is separated from the carton blank.

Further, the box pressing connecting rod assembly 4 includes a first connecting rod 401, a second connecting rod 403, a third connecting rod 404, a second connecting rod pin 402, a support 405, a spindle 406, a spindle sleeve 407, a spindle locking handle 408, and a box pressing plate 409. First link 401, second link 403, and third link 404 are sequentially connected by second link pin 402, and are rotatable about second link pin 402. The third link 404 and the support 405 are connected by a main shaft 406 and can rotate around the main shaft 406. The main shaft sleeve 407 is sleeved on the main shaft 406 and can slide on the main shaft 406, and the position of the main shaft sleeve 407 on the main shaft 406 is fixed through the main shaft locking handle 408 so as to meet the height of the carton blank. The box pressing plate 409 is fixed on the spindle cover 407 and presses the carton blanks.

Further, before the box opening mechanism of the box opening machine is used for opening the box, a piston rod of the base translation system 117 is in an extending state, the small-leaf sucker component 2 and the large-leaf sucker component 3 are in a parallel state, piston rods of 3 air cylinders 207 on the two sucker components are in a retracting state, a slit is formed in the process, a carton blank is pushed into the slit by a lower box-separating component of the box opening machine, and the upper part of the carton blank is limited by a box pressing plate 409.

In the unpacking process, piston rods of 3 cylinders 207 on the small-leaf sucker component 2 and the large-leaf sucker component 3 start to extend, the suckers 208 suck carton blanks, the suckers 208 on the small-leaf sucker component 2 suck small leaves of the carton blanks, and the suckers 208 on the large-leaf sucker component 3 suck large leaves of the carton blanks; then, the piston rod of the base translation system 117 starts to retract, the base 132, the small-leaf sucker component 2 and the large-leaf sucker component 3 connected with the base 132 are driven to move, the small-leaf sucker component 2 translates, the large-leaf sucker component 3 rotates by taking the first connecting pin 133 as a shaft under the drive of the connecting rod 135 while translating, the folded carton blanks are pulled to be in a shape like a Chinese character 'kou', and opening is completed.

The included angle edge of the carton blank pulled into the shape of a Chinese character 'kou' by the small-leaf sucker component 2 and the large-leaf sucker component 3 is coaxial with the first connecting pin shaft 133, so that the carton opening quality can be ensured and the carton opening can be smoothly carried out.

Furthermore, the unpacking rack component 1 and the base translation system 117 adopt a driving mode of an electric cylinder, and the stroke of a piston rod of the electric cylinder is controllable.

Furthermore, the position of the small-leaf sucker arm 203 of the small-leaf sucker component 2 fixed on the small-leaf swing arm 202 can be adjusted according to the size of the carton blank, and the sucker 208 is positioned in the middle of the small leaf of the carton blank after adjustment, so that the carton opening quality is better ensured.

Further, the large-page sucker component 3 comprises 2 groups of large-page sucker arms 302 and accessories thereof, and the distance between the 2 groups of large-page sucker arms is adjusted according to the size of the carton blank, so that the sucker 208 is positioned in the middle of the large page of the carton blank, and the carton opening quality is better ensured. After adjustment, the locking is performed by respective slider locking devices 307.

Furthermore, the large-page sucker component 3 is fixed with the sucker 208 and the large-page cylinder mounting rack 311 in a floating state, can be automatically finely adjusted in the transverse range of the large-page sucker arm 302, and can avoid the phenomenon that the sucker is pulled off due to the size error of the carton blank.

The above is only a preferred embodiment of the present invention, and the scope of the right of the present invention should not be limited by this, so that the equivalent changes made in the claims of the present invention still belong to the protection scope of the present invention.

Claims (10)

1. A box opening mechanism is characterized by comprising a box opening rack part, a base translation system, a small-page sucker component and a large-page sucker component, wherein a beam is arranged on the box opening rack part, a base linear slide rail is arranged on the beam along the length direction of the beam, a base is arranged on the base linear slide rail through a base slider, the base translation system is arranged on the box opening rack part and connected with the base, and the base translation system drives the base to move back and forth along the base linear slide rail through the base slider; the small-page sucker assembly is fixedly arranged on the base, the large-page sucker assembly is hinged with the base through a mounting seat, a connecting rod is connected between the mounting seat and the cross beam, and two ends of the connecting rod are respectively hinged with the mounting seat and the cross beam;

the base is little page of sucking disc subassembly and big page of sucking disc subassembly relative arrangement in case base reservation gap both sides when initial position, is used for absorbing little page of carton case base and big page or leaf respectively, and base translation system drives the base slider and moves the back along base linear slide rail antedisplacement, and little page of sucking disc is along the base translation, and big page of sucking disc subassembly rotates 90 simultaneously along the base translation.

2. A case opening mechanism according to claim 1, wherein a vertical moving device is provided between the case opening frame member and the cross beam; the vertical moving device drives the cross beam to move up and down;

the vertical moving device comprises an upright post, an upright post linear slide rail fixed on the upright post, a motor reducer base, a motor reducer and a rack fixed on the upright post, wherein the motor reducer is fixedly arranged on the unpacking rack component through the motor reducer base; the motor reducer drives the upright post and the cross beam to vertically move up and down through the gear and the rack.

3. The box opening mechanism according to claim 1, wherein the small-leaf sucker assembly comprises a small-leaf swing arm base, a small-leaf swing arm, a small-leaf sucker arm, a small-leaf cylinder mounting frame, a cylinder, a sucker connecting plate and a sucker, the small-leaf swing arm is fixedly connected with the base through the small-leaf swing arm base, the upper end of the small-leaf sucker arm is connected with the small-leaf swing arm, the cylinder is fixedly arranged on the small-leaf sucker arm through the small-leaf cylinder mounting frame, the sucker connecting plate is connected with a piston rod of the cylinder, and the sucker is arranged on the sucker connecting plate.

4. The box opening mechanism according to claim 1, wherein the large-page sucker assembly comprises a large-page swing arm, a large-page sucker arm, a large-page cylinder mounting frame, a cylinder, a sucker connecting plate and a sucker, the large-page swing arm is fixedly connected with the connecting mounting seat, the upper end of the large-page sucker arm is connected with the large-page swing arm, the cylinder is arranged on the large-page sucker arm through the large-page cylinder mounting frame, the sucker connecting plate is connected with a piston rod of the cylinder, and the sucker is arranged on the sucker connecting plate.

5. The box opening mechanism according to claim 4, wherein a movement adjustment locking device is connected between the large surface suction disc arm and the large surface swing arm, and the large surface suction disc arm moves back and forth along the length of the large surface swing arm through the movement adjustment locking device to adjust the position.

6. The box opening mechanism according to claim 5, wherein the movement adjustment locking device comprises a slider, a connecting guide rod, a slider locking device and a transition frame, the slider is arranged on the large-area swing arm and can slide along the length direction of the large-area swing arm, one end of the connecting guide rod is connected with the slider, the other end of the connecting guide rod penetrates through the large-area swing arm and the large-area suction disc arm and is fixedly connected with the transition frame, the transition frame is arranged in the large-area suction disc arm, the slider locking device is connected between the transition frame and the large-area suction disc arm, when the slider locking device is in a locking and pressing state, the slider and the large-area swing arm are tightly propped against each other, and the slider and the large-area swing arm are relatively fixed in position to form locking fixation;

the slider locking device comprises a connecting mounting plate, a screw rod and a pressing handle, the connecting mounting plate is fixedly arranged on the large-area sucker arm, the pressing handle is hinged to the connecting mounting plate, one end of the screw rod is connected with the pressing handle, the other end of the screw rod is fixedly connected with the transition frame, and a return spring is connected between the screw rod and the pressing handle.

7. The box opening mechanism according to claim 4, wherein the large-page cylinder mounting rack is arranged in a frame of the large-face sucker arm, the spring guide rod transversely penetrates through the large-page cylinder mounting rack, two ends of the spring guide rod are respectively connected with two sides of the large-face sucker arm, and the large-page cylinder mounting rack is hung on the spring guide rod;

the middle part of spring guide bar is connected with spring baffle, and compression spring has been put to spring baffle's both sides equipartition, and on spring guide bar was located to the compression spring cover, compression spring's one end and spring baffle were connected, and the other end is connected with the big page or leaf cylinder mounting bracket of corresponding side.

8. The box opening mechanism according to claim 7, wherein the number of the spring guide rods is two, and the two spring guide rods are respectively arranged at the upper end and the lower end of the large-page cylinder mounting rack in parallel.

9. The box opening mechanism according to claim 1, wherein a box pressing connecting rod component is arranged above a box blank reserved gap between the small-leaf sucker component and the large-leaf sucker component;

the box pressing connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, a connecting rod pin shaft, a support, a main shaft sleeve, a main shaft locking handle and a box pressing plate, the first connecting rod is fixedly arranged on the base, the first connecting rod, the second connecting rod and the third connecting rod are hinged through the connecting rod pin shaft in sequence and can rotate around the corresponding connecting rod pin shaft, and the third connecting rod is connected with the support through the main shaft and can rotate around the main shaft; the main shaft sleeve is sleeved on the main shaft and can slide along the main shaft, and the position of the main shaft sleeve on the main shaft is fixed through a main shaft locking handle so as to meet the requirements of different heights of carton blanks; the box pressing plate is fixed on the main shaft sleeve, and the lower end of the box pressing plate is used for pressing a carton blank.

10. The box opening mechanism of claim 1, wherein the base translation system is an electric cylinder or a hydraulic cylinder.

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