CN111792073B

CN111792073B - Packing carton tongue insertion mechanism and seal assembly line

Info

Publication number: CN111792073B
Application number: CN202010649793.5A
Authority: CN
Inventors: 李军; 李茂�
Original assignee: Zhongshan Fangyue Electronic Technology Co ltd
Current assignee: Zhongshan Fangyue Electronic Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-11-26
Anticipated expiration: 2040-07-08
Also published as: CN111792073A

Abstract

Packing carton tongue insertion mechanism and seal assembly line relate to packing carton and seal automation equipment technical field. The packing box inserting tongue inserting mechanism comprises a rack and a box seat arranged on the rack. Still include the top pusher, the top pusher is relative the frame is made the orientation along the circular arc line the packing carton with keep away from the reciprocating motion of packing carton, the top pusher orientation when the packing carton rotates, the top pushes away the inserted tongue of packing carton gets into the inserted tongue mouth. The sealing assembly line comprises a conveyor belt and a packing box inserting tongue inserting station arranged on the conveyor belt. The packing box inserting tongue inserting mechanism is characterized in that any one of the packing box inserting tongue inserting mechanisms is installed on the inserting tongue inserting station. Has the advantage of high automation degree of sealing.

Description

Packing carton tongue insertion mechanism and seal assembly line

Technical Field

The invention relates to a packaging box sealing mechanism for hard paper case forming and an automatic sealing production line, in particular to a packaging box tongue-inserting and inserting mechanism and a sealing production line.

Background

Before a plurality of products leave a factory, a packing box 500 shown in fig. 25 is used for packaging, the upper end of the cuboid packing box 500 is open, four sides of the open are folded with corresponding covers, a small cover 510 is folded on each of a pair of short sides of the open, a tongue insertion cover 520 is folded on one long side, a tongue insertion 530 is arranged between the tongue insertion cover 520 and a box wall connected with the tongue insertion cover 520, wherein the tongue insertion 530 is connected with the box wall and is provided with a folding line 531, the other three

sides

532, 533 and 534 are through cuts, a folding line 535 is arranged in the middle of the tongue insertion 530, a tongue is formed between the folding line 535 and the side 533, a tongue root is formed between the folding line 535 and the folding line 531, and in addition, a long tongue opening 540 is formed at the folding line between the tongue insertion cover 520 and the box wall. The other long edge of the opening is folded with a long tongue cover 550, the long tongue cover 550 is folded with a long tongue 560, and the folding line of the long tongue 560 and the long tongue cover 550 is also provided with a tongue insertion opening 570.

After the product is loaded into the package 500 shown in fig. 25, the sequence of steps for closing the opening of the package 500 is as follows, first, a pair of small lids 510 are folded down toward the opening; folding down the tongue insertion cover 520 toward the open mouth while separating the tongue insertion 530 from the tongue insertion cover 520; the long tongue cover 550 is folded downwards towards the open mouth, and meanwhile, the long tongue 560 is folded 90 degrees relative to the long tongue cover 550 and inserted into the long tongue mouth 540; finally, the tongue of the tongue insert 530 is inserted into the tongue insert opening 570. At present, the sealing work of the packaging box with the structure is mostly manually finished by people, and the labor efficiency is low. Recently, there are a few other patent documents for a sealing device of a packing box, such as CN110027749A, CN206456642U, etc., but it is also only a simple cap like the cap 510, which has a bending pressure maintaining mechanism to complete bending and maintain the bent shape. For the package 500 shown in fig. 25, which is relatively complex in construction, there is no automated packaging mechanism, particularly for the final tab 530 to be packaged into the tab opening 570. Therefore, it is necessary to provide a tongue insertion mechanism and an automatic production line for sealing the package.

Disclosure of Invention

The invention mainly aims to provide a packing box inserting tongue inserting mechanism;

another object of the present invention is to provide a package closing line.

In order to achieve the main purpose, the packing box inserting tongue inserting mechanism provided by the invention comprises a rack and a box seat arranged on the rack. Still include the top pusher, the top pusher is relative the frame is made the orientation along the circular arc line the packing carton with keep away from the reciprocating motion of packing carton, the top pusher orientation when the packing carton rotates, the top pushes away the inserted tongue of packing carton gets into the inserted tongue mouth.

According to the scheme, the process travel route of the inserting tongue of the packing box positioned on the box base pushed into the inserting tongue opening by the top of the pushing head is an arc line, which is approximately the same as the track of the rotating of the root of the inserting tongue 530 close to the folding line 535 around the folding line 531 in the process of inserting the inserting tongue opening 570, so that the inserting tongue is realized.

The pushing head is hinged with one end of a first connecting rod and one end of a second connecting rod, the other end of the first connecting rod is hinged with a piston rod of a first air cylinder, and the other end of the second connecting rod is hinged on the rack or the box seat close to the inserting tongue.

The pushing head is a cam driven by a rotary cylinder or a motor, the shaft of the cam is adjacent to the inserting tongue, and when the cam rotates, the raised head pushes the inserting tongue into the inserting tongue opening.

In order to achieve another purpose of the invention, the sealing production line provided by the invention comprises a conveyor belt and a packaging box inserting tongue inserting station arranged on the conveyor belt. The packing box inserting tongue inserting mechanism is characterized in that any one of the packing box inserting tongue inserting mechanisms is installed on the inserting tongue inserting station.

The tongue pulling and inserting device comprises a tongue pulling and inserting station, wherein the tongue pulling and inserting station is located on the upstream of the tongue inserting and inserting station, a tongue pulling and inserting mechanism is arranged on the tongue pulling and inserting station, and the tongue pulling and inserting mechanism is used for separating three cut edges of a tongue from a tongue inserting cover.

The pull-insert tongue mechanism comprises a pull rod driven by a second cylinder to reciprocate, a pawl is arranged at the front end of the pull rod and is in an extending state approximately perpendicular to the pull rod in a natural state, and the pawl retracts into the pull rod when being subjected to resistance in the process of extending the pull rod forwards.

Still further, the pull-tab mechanism may further include a support member for supporting the tab from a direction opposite to that of the pull rod when extended, such that the pawl is adapted to retract over the tongue and then return to the extended state.

The other further scheme is that the device further comprises a long tongue cover sealing station, the long tongue cover sealing station is located at the upstream of the inserting tongue inserting station, a long tongue cover sealing mechanism is arranged on the long tongue cover sealing station and used for sequentially bending the long tongue cover, bending the long tongue relative to the long tongue cover, keeping the bending angle and inserting the long tongue into the long tongue opening.

The long tongue cover sealing mechanism comprises a pressing plate driven by a third cylinder and used for bending the long tongue cover relative to the opening; the pressing plate is driven by a fourth air cylinder and is used for bending the long tongue relative to the long tongue cover; a Z-shaped pressing plate driven by a fifth air cylinder and used for keeping the bending angle of the long tongue relative to the long tongue cover; and the pressing plate is driven by a sixth air cylinder and is used for pressing the long tongue into the long tongue opening.

The folding long tongue cover mechanism further comprises a supporting plate matched with a pressing plate driven by the fourth air cylinder, and the end of the supporting plate supports the lower surface of the free end of the long tongue cover.

Drawings

The following drawings are block diagrams of embodiments of the invention, it being emphasized that components not germane to the invention have been omitted to a varying degree in the figures to enable a more detailed understanding of features to be obtained that are intended to be explained in the figures.

FIG. 1 is a perspective view of a first embodiment of a closure line for a package;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic illustration of FIG. 2 with parts broken away;

FIG. 5 is a sectional view A-A of FIG. 4;

FIG. 6 is a perspective view showing the structure of the pull rod in the pull-tab mechanism;

FIG. 7 is a front view of the structure of FIG. 6;

FIG. 8 is a cross-sectional view C-C of FIG. 7;

FIGS. 9-12 are schematic views reflecting the process of pulling the tongue;

FIGS. 13-18 are schematic views of a process of capping an elongated tongue;

FIG. 19 is a cross-sectional view B-B of FIG. 4;

FIG. 20 is an enlarged view of portion D of FIG. 19;

FIG. 21 is a view of the condition of FIG. 20 after the top of the pusher has been pushed;

FIG. 22 is a schematic view showing the structure of the ejector plug of the second embodiment of the sealing line of the packing box;

FIG. 23 is a view showing the sealing line of the packing box before the tongue of the second embodiment of the inserting direction is pushed;

FIG. 24 is a view of the second embodiment of the sealing line of the package with the insert tongue pushed into position;

fig. 25 is a perspective view of the structure of the packing box.

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

Detailed Description

The drawings of the following embodiments are merely schematic structural diagrams, and like reference numerals in the drawings denote like structures, and are particularly described with letters if there are slight differences.

In addition, only the structure closely related to the present invention will be described in detail below, and the bending and pressure maintaining mechanism such as the small lid 510 can be implemented by those skilled in the art by referring to the disclosure of the prior art of the present invention, for example, CN 206456642U.

Since the packing box tongue insertion mechanism of the present invention is a part of the packing box sealing line, the following description will be mainly given of an example of the packing box sealing line, and the description including the packing box tongue insertion mechanism will be included therein, and will not be separately described.

First embodiment of the sealing line

Referring to fig. 1 to 3, which are a perspective view, a front view and a top view of a sealing line, respectively, each station has a common frame 1, packages 500 filled with products enter the sealing line from the leftmost end of fig. 1 to be sequentially sealed, and are conveyed by a conveyor to a small cap sealing station 100, a tongue pulling and inserting station 200, a tongue sealing and inserting station 300, a long tongue sealing station 400 and a tongue inserting station 600. The packaging box 500 to be sealed after being filled with the product is shown in the leftmost schematic view in fig. 1, and during the process of being conveyed to the small cap sealing station 100, the bending operation of the pair of small caps 510 towards the opening is completed, and the bending operation is performed by the mechanical arm 101 and the mechanical arm 102. The above-mentioned stations of the invention are intended to perform one or more closing actions, and therefore, rather than having a single operation, the same packet may be advanced in line in one of the stations to a plurality of stations formed by cylinders and platens, and stopped at that station until the operation is completed.

At each station, there are one or more seats formed by pneumatic clamps or transfer rollers on both sides and by a transfer plate at the bottom, so as to stabilize the box body when the relative operations are performed on the boxes at the station.

Referring to fig. 4, fig. 4 is a schematic illustration of the tongue pulling and inserting mechanism, the tongue capping mechanism and the tongue inserting mechanism, and subsequent figures correspond to the sealing line in position along the conveying line, and fig. 4 omits some irrelevant parts with respect to fig. 1 to 3.

Referring to fig. 5, fig. 5 is a cross-sectional view a-a of fig. 4, reflecting a block diagram of the tab mechanism at the tab pulling station 200. The frame 1 is provided with a column 210, and a support member 211 is fixed to the column 210. The second cylinder 220 fixed on the frame 1 drives the pull rod 230 to reciprocate in the left-right direction shown in fig. 5, and when the pull rod 230 extends to push the latch 530 to the left side shown in fig. 5, the supporting member 211 supports the latch 530 from the opposite direction, i.e., to the right side in fig. 5, so as to prevent the latch 530 from falling to the left side.

Referring to fig. 6 to 8, a pawl 231 is provided at the front end of the drawbar 230, and naturally, the restoring force of a torsion spring 232 urges it to be substantially perpendicular to the drawbar 230.

Referring to fig. 9, the drawbar 230 is extended to the left and begins to rotate and retract within the drawbar 230 when the pawl 231 is stopped by the tongue 530. The support 211 bears against the tongue 530 during this process to prevent it from tilting.

Referring to fig. 10, when the drawbar 230 is left in position, the pawl 231 has passed the tongue 530 to its left, and the pawl 231 returns to its natural state under the restoring force of the torsion spring 232.

Referring to FIG. 11, when drawbar 230 is traveling to the right, the pawl will pull tab 530 away from tab cover 520 on three sides thereof.

Referring to fig. 12 in conjunction with fig. 1 and 2, a platen 240 on the back of the station conveys the retention tabs in this separated state to a tab closure station 300. At the tongue lid closing station 300, the tongue lid 520 is folded down by the robot over the open mouth of the package 500.

Referring to fig. 13, by the time of the long tongue cover closing station 400, the tongue insertion cover 520 is closed in place, and the long tongue cover closing mechanism is used for bending the long tongue cover 550 towards the opening, then bending the long tongue 560 relative to the long tongue cover 550, and finally inserting the long tongue 560 into the long tongue opening 540. The third cylinder 410 drives the pressing plate 411 to press the long tongue cover 550 from the left side of the long tongue cover 550 to bend it toward the opening.

Referring to fig. 14, when the long-tongue cover 550 is bent to touch the support plate 420, the pressing plate 431 driven by the fourth cylinder 430 presses the long tongue 560 downward to be bent with respect to the long-tongue cover 550, and the end of the support plate 420 supports the lower surface of the free end of the long-tongue cover 550.

Referring to fig. 15, the long tongue cover 550 and the long tongue 560 are bent. The second half of the travel to the capping station 400, while maintaining this bent state, is shown in fig. 16.

Referring to fig. 16, the Z-shaped pressing plate 441 driven by the fifth cylinder 440 is pressed down to align the long tongue 560 with the long tongue opening 540 and maintain the bent angle of the long tongue 560 relative to the long tongue lid 550, and advances toward the last stage of the long tongue lid closing station 400.

Referring to fig. 17, in the final stage of the long tongue lid closing station 400, the sixth cylinder 450 drives the pressing plate 451 to press the folded corner portions of the long tongue lid 550 and the long tongue 560, and the long tongue 560 is inserted into the long tongue opening 540 under the constraint of the guiding plate 460.

Referring to fig. 18, this is a state where the long flap 550 is sealed in place by the pressing plate 451.

Referring to fig. 19 and 20, fig. 19 is a cross-sectional view of the tab insertion station 600, after the tab 530 is pulled out and bent by the tab pulling station 200, the tab 530 is constrained by the pressing plate 240 to maintain its shape until the tab insertion station 600, the pusher 620 is a roller shaft hinged to one end of the first link 630 and the second link 640, the piston rod 650 of the first cylinder 610 is hinged to the other end of the first link 630, the other end of the second link 640 is hinged to the frame 1, and when the first cylinder 610 operates, the pusher 620 reciprocates toward the package 500 and away from the package 500 along an arc line with the second link 640 as a radius with respect to the frame 1. The length of the second link 640 is approximately equal to the length of the root of the insertion tongue 530.

Referring to fig. 21, in the state of fig. 20, when the piston rod 650 of the first cylinder 610 extends, the pushing head 620 pushes the tongue of the tongue insertion 530 into the tongue insertion opening 570 under the action of the link mechanism, and the pressing plate 240 located above the pushing head 620 acts as a tongue guide plate during the whole insertion process, i.e. guides the tongue to enter the tongue insertion opening 570 during the pushing process.

Second embodiment of the sealing line

Only the differences between the present embodiment and the previous embodiment will be described below, and the same parts will not be described again.

Referring to fig. 22, this embodiment is characterized in that a pushing head 670 is driven by a rotary cylinder or motor 660 fixed to the frame, the axis of rotation of the rotary cylinder or motor 660 fixed to the frame is close to the folding line 531 of the pack 500, the pushing head 670 is a cam, and the radius of the cam is substantially equal to the distance between the folding line 531 and the folding line 535.

Referring to fig. 23, when the rotary cylinder or motor 660 is rotated counterclockwise, the nose of the ejector 670 will push the tongue 530 into the tongue opening.

Referring to fig. 24, this is the state after the tongue 530 enters the tongue opening.

Other embodiments

Since the cassette holder has a portion fixedly connected to the frame, the other end of the second link 640 is hinged to the cassette holder in other possible embodiments, and the object of the present invention can be implemented as well.

Claims

1. The sealing assembly line comprises a conveying belt and a packing box inserting tongue inserting station arranged on the conveying belt, wherein the inserting tongue inserting station comprises a rack and a box seat arranged on the rack; the pushing head moves towards the packaging box and moves away from the packaging box in a reciprocating manner relative to the rack along an arc line, and when the pushing head rotates towards the packaging box, the pushing head pushes the insertion tongue of the packaging box to enter the insertion tongue opening;

the tongue pulling and inserting mechanism is used for separating three cut edges of the inserting tongue from the inserting tongue cover;

the pull-insert tongue mechanism comprises a pull rod driven by a second cylinder to reciprocate, a pawl is arranged at the front end of the pull rod, the pawl is in an extending state approximately perpendicular to the pull rod in a natural state, and the pawl contracts into the pull rod when being subjected to resistance in the process of extending the pull rod forwards;

the method is characterized in that:

the pull-tab mechanism also includes a support member for supporting the tab from a direction opposite to that of the pull rod when extended, such that the pawl is adapted to retract over the tongue and then return to the extended state.

2. The sealing line of claim 1, wherein:

the pushing head is hinged with one end of the first connecting rod and one end of the second connecting rod, the other end of the first connecting rod is hinged to a piston rod of the first air cylinder, and the other end of the second connecting rod is hinged to the rack or the box base in a manner close to the inserting tongue.

3. The sealing line of claim 1, wherein:

the pushing head is a cam driven by a rotary cylinder or a motor, a shaft of the cam is close to the inserting tongue, and when the cam rotates, the protruding head pushes the inserting tongue to enter the inserting tongue opening.

4. The sealing line of claim 1, wherein:

the long tongue cover sealing mechanism is used for sequentially bending the long tongue covers, bending the long tongues relative to the long tongue covers, keeping the bending angle and inserting the long tongues into the long tongue openings.

5. The sealing line of claim 4, wherein:

the long tongue cover sealing mechanism comprises a pressing plate driven by a third cylinder and used for bending the long tongue cover relative to the opening;

the pressing plate is driven by a fourth air cylinder and is used for bending the long tongue relative to the long tongue cover;

a Z-shaped pressing plate driven by a fifth air cylinder and used for keeping the bending angle;

and the pressing plate is driven by a sixth air cylinder and is used for pressing the long tongue into the long tongue opening.

6. The sealing line of claim 5, wherein:

the long tongue cover sealing mechanism further comprises a supporting plate matched with the pressing plate driven by the fourth cylinder, and the end of the supporting plate supports the lower surface of the free end of the long tongue cover.