CN117902101A - Automatic bundling equipment and bundling method for paper stack - Google Patents

Abstract

The invention relates to the field of automatic packaging, and particularly discloses automatic bundling equipment and a bundling method for paper stacks. The automatic paper stack bundling equipment comprises a frame, a paper feeding module, a bundling module and a rubberizing module; the machine frame is provided with a feeding station, a binding station and a rubberizing station, wherein the binding station is provided with a lifting channel, and the feeding station is positioned below the lifting channel; the paper feeding module is used for conveying the packaging paper between the feeding station and the bundling station; the bundling module comprises a lifting assembly, a paper folding assembly and an indexing assembly, wherein the lifting assembly comprises a bearing unit and a lifting driving unit, the paper folding assembly comprises a primary paper folding mechanism and a secondary paper folding mechanism, and the indexing assembly comprises an indexing supporting plate and an indexing driving unit. The automatic paper stack bundling equipment can automatically complete paper feeding, bundling and rubberizing operations, and has the advantages of reliable bundling effect and high bundling efficiency.

Description

Automatic bundling equipment and bundling method for paper stack

Technical Field

The invention relates to the field of automatic packaging, in particular to automatic bundling equipment and a bundling method for paper stacks.

Background

For sheet products, often stacked, packed and transported in stacks, for sheet products in which at least one set of sides are straight, bundling and packing are often performed with a wrapper after stacking a certain number of stacks, so as to improve the stacking stability of stacks and improve the packing and transport efficiency. For example, the cartons of cigarettes are in the form of printed and die cut paperboard prior to folding into boxes, and a number of paperboard sheets are stacked prior to shipping and are banded with kraft paper. Currently, the bundling and packaging operation of a material stack is basically finished by manpower, and the problems of low packaging efficiency, unstable quality and the like generally exist due to large uncertainty of bundling force and bundling position of each time of the manual bundling operation. The production and processing of sheet products are generally automated, and the strapping packaging of the material stack limits the improvement of the production efficiency to a great extent.

The Chinese patent application with publication number of CN 111392121A discloses an automatic packaging device for cigarette case paper board finished products, which can automatically complete operations such as regular feeding of cigarette case paper boards, packaging paper feeding and packaging, packaging paper pasting and the like and has the advantage of high efficiency. However, the automatic packaging device still has the defects, which are specifically shown as follows: the packing step of the packing paper is that the packing paper is fed into a ring shape, the cigarette case paper boards are orderly fed into the ring-shaped packing paper, the packing paper tightness is adjusted, and the packing paper is cut.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic paper stack bundling device and a bundling method, which can automatically complete paper feeding, bundling and rubberizing operations and have the advantages of reliable bundling effect and high bundling efficiency.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: an automated paper stack bundling apparatus comprising at least:

the machine frame is provided with a feeding station, a binding station and a rubberizing station, wherein the binding station is provided with a lifting channel, and the feeding station is positioned below the lifting channel;

the paper feeding module is used for conveying the packaging paper between the feeding station and the bundling station;

the bundling module comprises a lifting component, a paper folding component and an indexing component,

The lifting assembly comprises a bearing unit and a lifting driving unit, and the lifting driving unit is used for driving the bearing unit to move between a feeding station and a bundling station;

The paper folding assembly comprises a primary paper folding mechanism and a secondary paper folding mechanism, wherein the primary paper folding mechanism comprises two pre-folding push blocks, the two pre-folding push blocks are opposite left and right relative to the bundling station, and the primary paper folding mechanism also comprises a primary driving piece for driving the pre-folding push blocks to move in a translational manner relative to the bundling station; the secondary paper folding mechanism comprises a secondary inserting plate and a secondary driving piece, and the secondary driving piece is used for driving the secondary inserting plate to move in a translation mode;

The indexing assembly comprises an indexing supporting plate and an indexing driving unit, wherein the indexing driving unit is used for driving the indexing supporting plate to move between a binding station and a rubberizing station;

The secondary plugboard corresponds to one of the pre-folding pushing blocks, and the transposition supporting plate corresponds to the other pre-folding pushing block; the upper surface of the pre-folding pushing block is provided with a secondary paper folding groove, and the secondary inserting plate and the transposition supporting plate can be partially inserted into the secondary paper folding groove of the corresponding pre-folding pushing block;

the rubberizing module corresponds to the rubberizing station;

The discharging module comprises a discharging clamping jaw and a discharging driving unit, wherein the discharging driving unit is used for driving the discharging clamping jaw to clamp and transfer paper stacks at the rubberizing station.

In the initial state, the bearing unit is positioned at the feeding station. When the paper stack bundling operation is carried out, firstly, the paper stack is sent to the bearing unit, meanwhile, the paper feeding module conveys the packaging paper to a position between the feeding station and the bundling station, and the packaging paper is positioned above the paper stack. The lifting driving unit pushes the bearing unit and the paper stack to lift upwards, and the paper stack passes through the lifting channel and enters the bundling station. In the ascending process, the packaging paper is contacted with the paper stack and synchronously lifted, and two ends of the packaging paper droop.

Then, the primary driving piece drives the two pre-folding pushing blocks to move to the lower side of the paper stack, the lower end of the packaging paper is folded to the lower side of the paper stack, the paper stack falls onto the pre-folding pushing blocks, and the movement range of the pre-folding pushing blocks is limited due to the obstruction of the bearing unit. The lifting driving unit resets and drives the bearing unit to move downwards, so that a space is reserved for secondary folding. The secondary driving piece continues to work and drives the secondary inserting plate to move along the corresponding secondary paper folding groove until part of the secondary inserting plate passes through the corresponding pre-folding pushing block, so that the corresponding end part of the packaging paper is folded. Because the bearing unit is reset at this time, the corresponding end of the packaging paper can be ensured to be folded smoothly.

Finally, the indexing driving unit drives the indexing supporting plate to be inserted into the secondary paper folding groove, and part of the indexing supporting plate penetrates through the corresponding pre-folding pushing block to complete folding of the corresponding end part of the packaging paper, and the paper stack is integrally placed on the indexing supporting plate. The transposition driving unit drives the transposition support plate, the paper stack and the packaging paper to be transposed to the rubberizing station. The rubberizing module works, and the adhesive tape is pasted at the end part of the packing paper, which is positioned below the material stack.

The automatic paper stack bundling equipment can automatically complete paper feeding, bundling and rubberizing operations, adopts a three-step paper folding mode of primary paper folding, secondary paper folding and transposition support plate paper folding, can efficiently and reliably complete packaging paper folding operation, provides packaging for subsequent rubberizing operation, and has good bundling effect and high operation efficiency.

Preferably, the bearing unit comprises a fixed block, two sides of the fixed block are respectively provided with a movable block, the movable block is arranged opposite to the pre-folding pushing block, and the movable block is connected with the fixed block through a lateral elastic piece; the fixed block is connected with the lifting driving unit.

In the process that the packaging paper is lifted along with the paper stack, two ends of the packaging paper naturally droop and are in a loose state. In order to ensure the reliability of bundling and packaging, the pre-folding pushing block is contacted with the movable block in the one-time paper folding process and compresses the lower end of the packaging paper together. Because the movable block can move relative to the fixed block, after the wrapping paper is clamped, the pre-folding pushing block and the movable block can move together for a distance, so that the tensioning effect on the wrapping paper is achieved, and the bundling effect is more compact and reliable.

In addition, in order to realize paper folding, the pre-folding pushing block needs to extend into a distance below the paper stack, but if a large space is reserved on two sides of the bearing unit, the reliability of lifting the paper stack is necessarily affected. In order to ensure the reliability of the paper stack lifted by the bearing unit and simultaneously consider the space requirement of one-time paper folding, the two sides of the lifting unit are respectively provided with the movable blocks, the movable blocks can play a role in lifting the paper stack in the lifting process, and the movable blocks can retract under the pushing of the pre-folding pushing blocks in the one-time paper folding process, so that enough space is reserved for one-time paper folding.

Preferably, the paper folding assembly further comprises a paper folding compressing mechanism, wherein the paper folding compressing mechanism comprises a fixing seat and a compressing block, and the compressing block is connected with the fixing seat through a compressing elastic piece; the paper folding and pressing mechanism is positioned above the binding station, and the pressing blocks are arranged towards the binding station.

In the primary folding and secondary folding processes, the paper folding pressing mechanism provides pre-tightening pressure for the packaging paper and the material stack, and plays a role in pressing the paper stack and the packaging paper.

Preferably, the paper folding assembly further comprises a primary paper folding bracket, and the two primary paper folding mechanisms are arranged on the primary paper folding bracket and further comprise lifting cylinders for driving the primary paper folding bracket to ascend and descend.

Because the secondary paper folding groove can form a certain obstruction to the translational movement of the transposition support plate, a drive is needed to be added, and the primary paper folding support and the lifting cylinder are arranged to drive the pre-folding push block to move up and down, so that the transposition support plate and the pre-folding push block are staggered in height, and the transposition movement can be smooth.

Preferably, the indexing assembly further comprises an indexing limiting unit, the indexing limiting unit comprises an upper limiting plate and a limiting driving unit, the upper limiting plate and the indexing supporting plate are arranged in an up-down opposite mode, and the limiting driving unit is used for driving the upper limiting plate to move up and down relative to the indexing supporting plate.

In the process of indexing the paper stack from the binding station to the rubberizing station, the upper limiting plate and the indexing supporting plate jointly compress the paper stack, so that the stability of the paper stack in the transferring process is effectively ensured. Meanwhile, the folding part at the lower end of the packaging paper can be effectively limited, and smooth rubberizing operation is ensured.

Preferably, the paper feeding module comprises a paper feeding assembly, and the paper feeding assembly comprises a paper cutting mechanism and a feeding mechanism;

The paper cutting mechanism comprises a paper cutting platform, a paper cutting driving piece and a first cutter, wherein the first cutter is positioned above the paper cutting platform, and the paper cutting driving piece is used for driving the first cutter to move up and down relative to the paper cutting platform;

The feeding mechanism comprises a paper feeding chuck and a feeding driving piece, and the feeding driving piece is used for driving the paper feeding chuck to take paper from the paper cutting platform and move in a translational mode.

The feeding mechanism is used for taking paper and feeding the paper to a specific length, and the paper cutting mechanism is used for cutting off the packaging paper.

Preferably, the paper feeding module further comprises a paper placing assembly, wherein the paper placing assembly comprises a paper storage bracket and a paper pulling mechanism, and the paper pulling mechanism is positioned between the paper storage bracket and the paper cutting mechanism;

the paper pulling mechanism comprises at least two fixed shafts, and a movable shaft is arranged between every two adjacent fixed shafts; the paper pulling mechanism also comprises a paper pulling driving piece, and the paper pulling driving piece is used for driving the movable shaft to move relative to the fixed shaft.

The paper storage bracket is used for storing the whole roll of packaging paper, and in order to reduce the paper feeding resistance of the feeding mechanism, a paper pulling mechanism is arranged to pull the packaging paper out of the paper roll for a certain length in advance. When the paper pulling operation is carried out, the free end of the wrapping paper bypasses the fixed shaft and the movable shaft at first and is fixed on the paper cutting platform. The movable shaft is then moved relative to the stationary shaft to pull the wrapper from the roll. Before the paper is fed by the feeding mechanism, the movable shaft is reset, the pulled packaging paper is in a loose state, and the paper can be easily fed by the feeding mechanism.

Preferably, the rubberizing module comprises a rubberizing assembly and a rubberizing assembly, wherein the rubberizing assembly comprises a rubberizing storage bracket, a rubberizing mechanism and a rubberizing mechanism;

The glue cutting mechanism comprises a glue cutting base, a second cutter and a glue cutting driving piece, wherein the glue cutting driving piece is used for driving the second cutter to move relative to the glue cutting base;

The rubberizing assembly comprises a rubberizing head and a rubberizing driving piece, wherein the rubberizing head is arranged upwards and forms a rubberizing zone above, and the rubberizing driving piece is used for driving the rubberizing head to move up and down;

the glue feeding mechanism comprises a glue feeding chuck and a glue feeding driving piece, wherein the glue feeding driving piece is used for driving the glue feeding chuck to clamp the adhesive tape from the glue cutting mechanism and convey the adhesive tape to a glue pasting section.

The adhesive tape storage support is used for storing the whole roll of adhesive tape, the adhesive tape feeding mechanism is used for clamping the adhesive tape, pulling out a certain length and moving to the adhesive tape pasting section, and the adhesive tape cutting mechanism is used for cutting off the adhesive tape at a specific position.

Preferably, the rubberizing driving piece comprises a first-stage air cylinder and a second-stage air cylinder, wherein the first-stage air cylinder is fixedly arranged on the frame, and the output end of the first-stage air cylinder is connected with a transition connecting block; the second-stage air cylinder is arranged on the transition connecting block, and the output end of the second-stage air cylinder is connected with the rubberizing head.

The rubberizing assembly is provided with two strokes, and the two strokes are respectively driven by a primary cylinder and a secondary cylinder. One of the strokes is feeding of the rubberizing head and contacting with the adhesive tape to take the adhesive tape, and the second stroke is that the rubberizing head drives the adhesive tape to be stuck on the packaging paper.

An automatic bundling method for paper stacks adopts the automatic bundling equipment for paper stacks;

At least comprises the following steps:

s1, feeding: feeding the paper stack onto a bearing unit positioned at a feeding station, and simultaneously, working a paper feeding module to convey the packaging paper between the feeding station and a bundling station; at this time, the wrapping paper is positioned above the paper stack;

s2, lifting: the lifting driving unit works to push the bearing unit and the paper stack to lift upwards, pass through the lifting channel and enter the bundling station; at this time, the upper surface of the bearing unit is not lower than the upper surface of the pre-folding pushing block; in the ascending process, the packaging paper contacts with the paper stack and is lifted synchronously, and two ends of the packaging paper droop;

S3, paper clamping: the primary driving piece works, and the two pre-folding pushing blocks are close to each other and move to the lower part of the paper stack; the lifting driving unit resets, the bearing unit is driven to move downwards, and the paper stack falls onto the pre-folding pushing block;

The secondary driving piece works and drives the secondary inserting plate to move along the corresponding secondary paper folding groove until part of the secondary inserting plate passes through the corresponding pre-folding pushing block, so that the corresponding end part of the packaging paper is folded;

S4, indexing: the indexing driving unit works and drives the indexing supporting plate to move to the binding station, at the moment, the indexing supporting plate is inserted into the secondary paper folding groove and partially penetrates through the corresponding pre-folding pushing block, and folding of the corresponding end part of the packaging paper is completed in the process of inserting the indexing supporting plate; then, the transposition driving unit continues to work to drive the transposition support plate, the paper stack and the packaging paper to be transposed to the rubberizing station;

S5, rubberizing: the rubberizing module works, and the adhesive tape is pasted at the end part of the packing paper, which is positioned below the material stack.

Drawings

FIG. 1 is a schematic view of an automated binding apparatus for a stack of sheets according to the present embodiment;

FIG. 2 is a schematic view of the rear side view of the automated binding apparatus for paper stacks of the present embodiment;

FIG. 3 is a schematic view showing a structure of the automated binding apparatus for a sheet stack according to the embodiment excluding the temporary storage line and the stock line;

FIG. 4 is a schematic view showing a rear structure of the automated binding apparatus for a sheet bundle according to the embodiment excluding the temporary storage line and the stock line;

FIG. 5 is a schematic view showing the structure of a frame in the automated binding apparatus for a paper stack according to the present embodiment;

FIG. 6 is a top view of a frame in the automated binding apparatus of the present embodiment;

FIG. 7 is a side view of the cooperation of the paper feed module and the strapping module in the automated strapping apparatus of the present embodiment;

FIG. 8 is a schematic view showing the configuration of the cooperation of the paper feeding module and the bundling module in the automated bundling apparatus for paper stack according to the present embodiment;

FIG. 9 is a schematic view of the configuration of the feed module and lift assembly of the automated paper stack strapping apparatus of the present embodiment;

FIG. 10 is a schematic view showing the cooperation of the material handling assembly and the lifting assembly in the automated binding apparatus for a stack of paper according to the present embodiment;

FIG. 11 is a top view of a handling assembly in the automated binding apparatus of the present embodiment;

FIG. 12 is a schematic view of the lifting assembly of the automated binding apparatus for a stack of sheets of the present embodiment;

FIG. 13 is a schematic view showing the configuration of the paper folding assembly of the automated binding apparatus for a paper stack according to the present embodiment in cooperation with a second platform;

FIG. 14 is a side view of a paper folding assembly of the automated binding apparatus of the present embodiment;

FIG. 15 is a schematic view showing the structure of a paper folding assembly in the automated binding apparatus for a paper stack according to the present embodiment;

FIG. 16 is a schematic view of the indexing assembly of the automated binding apparatus for paper stacks of the present embodiment;

FIG. 17 is a schematic view showing the structure of a paper feed module in the automated binding apparatus for paper stack according to the present embodiment;

FIG. 18 is a schematic view of the structure of the automated binding apparatus for a stack of sheets according to the present embodiment from the rear side view of the feed module;

FIG. 19 is a schematic view showing the structure of a paper cutting mechanism in the automated binding apparatus for paper stack according to the present embodiment;

FIG. 20 is a side view of a paper cutting mechanism in the automated binding apparatus for paper stacks of the present embodiment;

FIG. 21 is a schematic view showing the structure of a paper pulling mechanism in the automated binding apparatus for a paper stack according to the present embodiment;

FIG. 22 is a schematic diagram showing the configuration of the glue module in the automated binding apparatus for a stack of sheets according to the present embodiment in cooperation with a second platform;

FIG. 23 is a front view of a rubberizing module in the automated banding apparatus for a paper stack of this embodiment;

FIG. 24 is a schematic view showing the structure of a rubberizing module in the automated banding apparatus for a paper stack according to the embodiment;

FIG. 25 is a cross-sectional view of the glue module in the automated binding apparatus for stacks of paper of the present embodiment;

FIG. 26 is a schematic view showing the structure of a bale splitter in the automated strapping device of the present embodiment;

FIG. 27 is a schematic view showing the configuration of the matching between the discharge module and the rubberizing module in the automated banding apparatus for a paper stack according to the embodiment;

fig. 28 is a schematic structural view of the cooperation of the discharge conveyor line and the stock line in the automated binding apparatus for paper stack according to the present embodiment.

Description of the embodiments

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Examples

As shown in fig. 1-4, an automated bundling apparatus for paper stacks comprises a frame 1, a feeding module 3, a paper feeding module 6, a bundling module 2, a rubberizing module 4 and a discharging module 5.

As shown in fig. 3-6, the frame 1 is provided with a first platform 12 and a second platform 11, and the second platform 11 is located above the first platform 12. The first platform 12 is provided with a feeding station 121, and the second platform 11 is provided with a bundling station 111 and a rubberizing station 112. The bundling station 111 is provided with a lifting channel 113, the lifting channel 113 penetrates through the second platform 11 up and down, and the feeding station 121 and the lifting channel 113 are arranged opposite to each other.

As shown in fig. 7-11, the feeding module 3 includes a feeding conveyor 32 and a sorting assembly 33, the sorting assembly 33 includes a lateral positioning plate 333, an end-to-sort mechanism, and a lateral pushing mechanism, and the end-to-sort unit and the lateral pushing unit are located on the same side of the lateral positioning plate 333.

As shown in fig. 8-10, the end-to-end finishing mechanism includes two end-to-end integral units, each of which includes an end-to-end pressing plate 332 and an end-to-end driving member, where the two end-to-end pressing plates 332 of the end-to-end finishing units are disposed opposite to each other, and the end-to-end driving member is used for driving the corresponding end-to-end pressing plate 332 to move. The feeding module 3 is located at the feeding station 121, and a feeding finishing area is located between the end-facing pressing plate 332 and the lateral positioning plate 333, and the output end of the feeding conveyor belt 32 is aligned with the feeding finishing area.

As shown in fig. 8-10, the lateral pushing mechanism includes a pushing plate 331 and a pushing driving member, where the pushing plate 331 is disposed opposite to the lateral positioning plate 333, and the pushing driving member is used to drive the pushing plate 331 to move relative to the lateral positioning plate 333 and reciprocate between the output end of the feeding conveyor 32 and the feeding sorting area. The lateral pushing mechanism is fixedly connected with the end-to-end pressing plate 332 and moves synchronously.

When feeding, firstly, the paper stack is conveyed to the output end by the feeding conveying belt 32, the pushing driving piece and the end direction driving piece work cooperatively, the pushing plate 331 is driven to move to the rear side of the paper stack, then the pushing driving piece moves in the direction to push the paper stack to enter the feeding arrangement area, and the pushing plate 331 and the lateral positioning plate 333 cooperate to finish lateral arrangement of the paper stack. The rearmost drive works to drive the two end-to-press plates 332 closer together, completing the end-to-finish.

As shown in fig. 1 and 2, the feeding module 3 further includes a temporary storage conveying line 31, an output end of the temporary storage conveying line 31 is aligned with an input end of the feeding conveying belt 32, and the temporary storage conveying line 31 can sequentially discharge and place a plurality of paper stacks along a conveying direction. The input of feeding conveyer belt 32 still is equipped with photoelectric detection unit, and when the transfer chain 31 of keeping in sent into the feeding transfer chain with single paper buttress, photoelectric detection unit detects there is the material signal, and the transfer chain 31 of keeping in stops working, guarantees that only single paper buttress gets into feeding conveyer belt 32 once.

As shown in fig. 7, the paper feeding module 6 is used for conveying the packing paper between the feeding station 121 and the bundling station 111, and includes a paper feeding assembly 61 and a paper discharging assembly 62.

As shown in fig. 17 to 21, the paper feeding assembly 61 includes a paper cutting mechanism 612 and a feeding mechanism 611. As shown in fig. 19 and 20, the paper cutting mechanism 612 includes a paper cutting platform 6122, a paper cutting driving member, and a first cutter 6123, wherein the first cutter 6123 is located above the paper cutting platform 6122, and the paper cutting driving member is used for driving the first cutter 6123 to move up and down relative to the paper cutting platform 6122. Specifically, the paper cutting platform 6122 is located at one side of the second platform 11 and between the first platform 12 and the second platform 11, and the height difference between the paper cutting platform 6122 and the first platform 12 is not smaller than the height of the paper stack. The paper cutting platform 6122 further comprises two paper pressing units 6121, each paper pressing unit comprises a paper pressing plate and a paper pressing driving unit, the paper pressing plates are arranged towards the paper cutting platform 6122, the paper pressing driving unit drives the paper pressing plates to move up and down, and the first cutter 6123 is located between the two paper pressing plates.

As shown in fig. 17 and 18, the feeding mechanism 611 includes a feeding chuck and a feeding driving member, and specifically, the feeding chuck is a negative pressure suction head. Specifically, a guide rail is installed on the lower surface of the second platform 11, the paper feeding clamp is in sliding connection with the second platform 11 through the guide rail, and the feeding driving piece is an air cylinder or a driving belt for driving the paper feeding clamp to slide. The feeding driving piece is used for driving the paper feeding clamping head to take paper from the paper cutting platform 6122 and move in a translational mode towards the second platform 11 for a specific length.

As shown in fig. 21, the paper feeding unit 62 includes a paper storing bracket 621 and a paper pulling mechanism 622, and the paper pulling mechanism 622 is located between the paper storing bracket 621 and the paper cutting mechanism 612. The paper storage bracket 621 comprises a paper storage rotating shaft 6212, the paper storage rotating shaft 6212 is arranged on the frame 1 through a magnetic torquer 6211, and the magnetic torquer 6211 can control the moment of pulling out the packaging paper from the paper storage bracket 621 by the feeding mechanism 611 and the paper pulling mechanism 622, so that the paper pulling process is ensured to be carried out stably.

As shown in fig. 21, the paper pulling mechanism 622 includes at least two fixed shafts 6223, and a movable shaft 6222 is disposed between each two adjacent fixed shafts 6223. The paper pulling mechanism 622 further includes a paper pulling driving member for driving the movable shaft 6222 to move relative to the fixed shaft 6223. The paper pulling mechanism 622 further comprises a paper pulling and pressing unit 6221, the paper pulling and pressing unit 6221 comprises a paper pulling pressing plate and a paper pulling and pressing driving unit, the paper pulling pressing plate is located above the paper cutting platform 6122, and the paper pulling and pressing driving unit is used for driving the paper pulling pressing plate to move relative to the paper pulling platform.

As shown in fig. 21, specifically, the fixed shaft 6223 and the movable shaft 6222 are disposed relatively parallel to each other and parallel to the paper storage shaft 6212 while being disposed relatively perpendicular to the paper feed direction of the feeding mechanism 611. The fixed shaft 6223 and the movable shaft 6222 are respectively connected with the frame 1, and each fixed shaft 6223 is located at the same horizontal level, and the paper pulling driving member is used for driving the movable shaft 6222 to move in an up-down translation manner.

The paper storage rack 621 is used for storing the whole roll of wrapping paper, and in order to reduce the resistance of the feeding mechanism 611 to feed paper, a paper pulling mechanism 622 is provided to pull the wrapping paper out of the paper roll by a certain length in advance. In the paper pulling operation, the free end of the wrapping paper bypasses the fixed shaft 6223 and the movable shaft 6222 first, and is pressed and fixed by the paper pulling pressing unit 6221 at the paper cutting platform 6122. The movable shaft 6222 is then moved relative to the fixed shaft 6223 to pull the wrapper from the roll.

In the paper feeding operation, first, the two paper pressing units 6121 are in a lifted state, and the feeding driving member drives the paper feeding nip to suck the end of the wrapping paper and horizontally feed the wrapping paper, and the wrapping paper passes under the two paper pressing units 6121. After the wrapping paper is fed to a certain length, the paper pressing unit 6121 presses the wrapping paper, and the first cutter 6123 cuts off the wrapping paper. Before the feeding mechanism 611 feeds the paper, the movable shaft 6222 is reset, the pulled-out packaging paper is in a loose state, and the feeding mechanism 611 can feed the paper easily. Before the paper stack is lifted, the paper feeding chuck and the paper pressing unit 6121 wrap the position state of the paper packaging paper.

As shown in fig. 7 and 8, the strapping module 2 includes a lifting assembly 21, a paper folding assembly 22, and an indexing assembly 23.

As shown in fig. 7-12, the lifting assembly 21 includes a carrying unit 211 and a lifting driving unit 212, where the lifting driving unit 212 is used to drive the carrying unit 211 to move between the feeding station 121 and the bundling station 111. Specifically, the carrying unit 211 has at least two position states, and in the first position state, the carrying unit 211 is located in the feeding finishing area and is not higher than the feeding conveyor belt 32; in the second position state, the carrying unit 211 is located at the bundling station 111 and is not lower than the pre-folding pushing block 2221. The lift driving unit 212 is an air cylinder that drives the bearing unit 211 to move up and down.

As shown in fig. 12, the carrying unit 211 includes a fixed block 2111, two sides of the fixed block 2111 are respectively provided with a movable block 2112, the movable block 2112 is opposite to the pre-folding pushing block 2221, and the movable block 2112 is connected with the fixed block 2111 through a lateral elastic member. The fixing block 2111 is connected to the lift driving unit 212.

In the process that the packaging paper is lifted along with the paper stack, two ends of the packaging paper naturally droop and are in a loose state. In order to ensure the reliability of the strapping, the pre-folding push block 2221 contacts the movable block 2112 and presses the lower end of the wrapping paper together in one paper folding process. Because the movable block 2112 can move relative to the fixed block 2111, after the wrapping paper is clamped, the pre-folding pushing block 2221 and the movable block 2112 can also jointly move for a distance to play a tensioning role on the wrapping paper, and the bundling effect is more compact and reliable.

In addition, in order to fold the paper, the pre-folding pushing block 2221 needs to extend a distance below the paper stack, but if a large space is left on both sides of the carrying unit 211, the reliability of lifting the paper stack will be affected. In order to ensure the reliability of lifting the paper stack by the bearing unit 211 and also consider the space requirement of one paper folding, the two sides of the lifting unit are respectively provided with the movable blocks 2112, in the lifting process, the movable blocks 2112 can play a role in lifting the paper stack, in the one paper folding process, the movable blocks 2112 can retract under the pushing of the pre-folding pushing blocks 2221, and enough space is reserved for one paper folding.

As shown in fig. 13-15, the paper folding assembly 22 includes a primary paper folding mechanism 222 and a secondary paper folding mechanism 221, the primary paper folding mechanism 222 includes two pre-folding push blocks 2221, the two pre-folding push blocks 2221 are opposite left and right relative to the bundling station 111, and the primary paper folding mechanism 222 further includes a primary driving member 2223 for driving the pre-folding push blocks 2221 to move in a translational manner relative to the bundling station 111. The secondary paper folding mechanism 221 includes a secondary insertion plate 2212 and a secondary driving member 2211, where the secondary driving member 2211 is used to drive the secondary insertion plate 2212 to move in a translational manner.

Further, as shown in fig. 7 and 8, the paper folding assembly 22 further includes a paper folding compressing mechanism 24, the paper folding compressing mechanism 24 includes a fixing base and a compressing block, and the compressing block is connected with the fixing base through a compressing elastic member. The paper folding and pressing mechanism 24 is located above the bundling station 111, and the pressing blocks are arranged towards the bundling station 111. The paper folding and pressing mechanism 24 provides pre-tightening pressure for the packing paper and the material stack in the primary folding and secondary folding processes, and plays a role in pressing the paper stack and the packing paper.

As shown in fig. 16, the indexing assembly 23 includes an indexing pallet 231 and an indexing drive unit 232, wherein the indexing drive unit 232 is configured to drive the indexing pallet 231 between the strapping station 111 and the rubberizing station 112.

As shown in fig. 16, specifically, the indexing driving unit 232 includes a lateral driving member for driving the intermediate slider to move in translation relative to the frame 1, an intermediate slider provided on the intermediate slider, and a longitudinal driving member for driving the indexing pallet 231 to move relative to the pre-folding push block 2221.

As shown in fig. 15, the secondary board 2212 corresponds to one of the pre-folding pushing blocks 2221, and the indexing pallet 231 corresponds to the other pre-folding pushing block 2221. The upper surface of the pre-folding push block 2221 is provided with a secondary paper folding groove 2222, and the secondary insertion plate 2212 and the indexing support plate 231 can be partially inserted into the secondary paper folding groove 2222 corresponding to the pre-folding push block 2221.

Since the secondary paper folding slot 2222 may form a certain obstruction to the translational movement of the indexing support plate 231, a driving device needs to be added, and a corresponding lifting cylinder may be disposed in the indexing assembly 23, so as to drive the indexing support plate 231 to move up and down, so that the indexing support plate 231 and the pre-folding pushing block 2221 are staggered in height. In this embodiment, a manner is adopted in which a primary paper folding support 223 is disposed above the second platform 11, two primary paper folding mechanisms 222 are both disposed on the primary paper folding support 223, and a lifting cylinder is disposed below the second platform 11 for driving the primary paper folding support 223 to rise and fall, in which the primary paper folding support 223 is in a lifting state in the paper folding process, and when an indexing operation is required, the primary paper folding support 223 falls down, so as to provide a space for translational movement of the indexing support 231.

As shown in fig. 16, further, the indexing assembly 23 further includes an indexing limiting unit 233, the indexing limiting unit 233 includes an upper limiting plate and a limiting driving unit, the upper limiting plate is disposed opposite to the indexing supporting plate 231 from top to bottom, and the limiting driving unit is used for driving the upper limiting plate to move up and down relative to the indexing supporting plate 231.

In the process of indexing the paper stack from the bundling station 111 to the rubberizing station 112, the upper limiting plate and the indexing supporting plate 231 jointly compress the paper stack, so that the stability of the paper stack in the transferring process is effectively ensured. Meanwhile, the folding part at the lower end of the packaging paper can be effectively limited, and smooth rubberizing operation is ensured.

As shown in fig. 3-6, the taping module 4 corresponds to the taping station 112. As shown in fig. 22-26, the rubberizing module 4 includes a rubberizing assembly and a rubberizing assembly 43, wherein the rubberizing assembly includes a rubberizing bracket 41, a rubberizing structure 42 and a rubberizing mechanism 45, and the rubberizing bracket 41 is used for storing a whole roll of adhesive tape.

As shown in fig. 22-26, the adhesive cutting structure 42 includes an adhesive cutting base 47, a second cutter 46, and an adhesive cutting driving member for driving the second cutter 46 to move relative to the adhesive cutting base 47. The adhesive cutting base 47 is provided with an adhesive pressing unit 421, the adhesive pressing unit 421 comprises an adhesive tape pressing plate and an adhesive pressing driving piece, the adhesive tape pressing plate is positioned above the adhesive cutting base 47, and the adhesive pressing driving piece is used for driving the adhesive tape pressing plate to move up and down.

As shown in fig. 22-26, the rubberizing assembly 43 includes a rubberizing head 431 and a rubberizing driving member, wherein the rubberizing head 431 is disposed upward and forms a rubberizing zone above, and the rubberizing driving member is used for driving the rubberizing head 431 to move up and down. The rubberizing head 431 comprises a negative pressure adsorption unit, specifically, the rubberizing head 431 is provided with a rubberizing surface, and the adsorption surface of the negative pressure adsorption unit is positioned on the rubberizing surface.

As shown in fig. 22-26, the glue feeding mechanism 45 includes a glue feeding chuck and a glue feeding driving member, where the glue feeding driving member is used to drive the glue feeding chuck to pick up the adhesive tape from the glue cutting structure 42 and transfer the adhesive tape to the glue applying section. The adhesive feeding mechanism 45 is used for clamping the adhesive tape, pulling out a certain length and moving to an adhesive tape pasting section, and the adhesive cutting structure 42 is used for cutting the adhesive tape at a specific position.

As shown in fig. 26, a glue taking gap 471 is disposed at a side of the glue cutting base 47 facing the glue applying region, the width of the glue taking gap 471 is smaller than that of the glue tape, an auxiliary gap is also disposed on the corresponding glue pressing plate, the auxiliary gap is matched with and aligned with the glue taking gap 471, the width of the second cutter 46 is larger than that of the glue taking gap 471, and the width of the glue feeding chuck is smaller than that of the glue taking gap 471.

The adhesive feeding clamp comprises an upper clamp head and a lower clamp head, wherein an anti-adhesion layer is arranged on the clamping surface of the upper clamp head, an anti-adhesion layer is also arranged on the adhesive tape pressing plate, and the anti-adhesion layer is processed by polytetrafluoroethylene materials. Polytetrafluoroethylene is oily material, not only can compress tightly the sticky tape, has still has the effect of avoiding adhesion with the sticky tape.

As shown in fig. 25, further, the rubberizing driving part includes a first-stage cylinder 432 and a second-stage cylinder 433, the first-stage cylinder 432 is fixedly disposed on the frame 1, and an output end of the first-stage cylinder 432 is connected with a transitional connection block. The secondary cylinder 433 is installed on the transition connecting block, and the output of secondary cylinder 433 is connected with rubberizing head 431.

The rubberizing assembly 43 has two strokes, driven by a primary cylinder 432 and a secondary cylinder 433, respectively. One of the strokes is that the rubberizing head 431 feeds and contacts with the adhesive tape to pick the adhesive tape, and the second stroke is that the rubberizing head 431 drives the adhesive tape to be stuck on the packaging paper.

As shown in fig. 22 and 23, the rubberizing module 4 further includes a rubberizing support frame 44, the rubberizing support frame 44 includes two rubberizing support plates, and the rubberizing assembly 43 is located between the two rubberizing support plates. After the stack is glued, the indexing assembly 23 is withdrawn from the gluing support 44, leaving room for the subsequent discharge operation. Further, the rubberizing support frame 44 is further connected with a support driving unit, and the support driving unit is used for driving the rubberizing support plate to move up and down, in the rubberizing process, the rubberizing support plate is in a falling state, after rubberizing is completed, the rubberizing support plate is lifted to receive a paper stack, and then the indexing assembly 23 is withdrawn.

In the initial state, the carrying unit 211 is located at the feeding station 121. In the bundling operation of the paper stack, first, the paper stack is fed onto the carrying unit 211 while the paper feed module 6 feeds the wrapping paper between the feeding station 121 and the bundling station 111, with the wrapping paper being located above the paper stack. The lifting drive unit 212 pushes the carrying unit 211 and the stack upwards and through the lifting channel 113 into the strapping station 111. In the ascending process, the packaging paper is contacted with the paper stack and synchronously lifted, and two ends of the packaging paper droop.

Subsequently, the primary driving member 2223 drives the two pre-folding push blocks 2221 to move below the sheet stack, folds the lower end of the wrapping sheet below the sheet stack, and the sheet stack falls onto the pre-folding push blocks 2221, and the movement range of the pre-folding push blocks 2221 is limited due to the obstruction of the carrying unit 211. The lifting driving unit 212 is reset, and the bearing unit 211 is driven to move downward, so that a space is reserved for secondary folding. The secondary driving member 2211 continues to operate, and drives the secondary insertion plate 2212 to move along the corresponding secondary paper folding groove 2222 until the secondary insertion plate partially passes through the corresponding pre-folding pushing block 2221, so as to perform folding operation on the corresponding end of the packaging paper. Since the carrying unit 211 is reset at this time, it is ensured that the corresponding end of the wrapping paper is folded smoothly.

Finally, the indexing driving unit 232 drives the indexing tray 231 to be inserted into the secondary paper folding slot 2222, and to partially pass through the corresponding pre-folding pushing block 2221, thereby completing folding of the corresponding end of the package paper, and integrally placing the paper stack on the indexing tray 231. The indexing drive unit 232 drives the indexing pallet 231, the stack of sheets and the wrapping paper to be indexed to the rubberizing station 112. The taping module 4 works to paste the adhesive tape at the end of the wrapping paper below the stack.

As shown in fig. 27 and 28, the discharging module 5 includes a discharging assembly 52, a discharging conveyor line 53, a storage line 51, and a product transferring assembly, wherein the discharging assembly 52 is used for transferring the rubberized paper stack from the rubberizing station 112 to the input end of the discharging conveyor line 53, and the product transferring assembly is used for transferring the paper stack from the output end of the discharging conveyor belt to the storage line 51.

As shown in fig. 27 and 28, the discharge assembly 52 includes a discharge jaw and a discharge drive unit for driving the discharge jaw to grip and transfer a stack of sheets at the taping station 112. The discharge clamping jaw is downwards arranged, when discharging, the discharge clamping jaw clamps the upper end of the paper stack, the rubberizing position of the packaging paper is positioned at the lower end, and after the discharge clamping jaw clamps the paper stack, the self gravity of the paper stack can be utilized to check whether rubberizing is reliable or not.

As shown in fig. 27 and 28, the product indexing assembly 23 includes a lifting unit 542 and a translational pushing unit 541, the discharge conveyor line 53 conveys the stack of sheets onto the lifting unit 542, and the lifting unit 542 is lowered to be in height with the storage line 51, and the translational pushing unit 541 operates to push the stack of sheets onto the storage line 51.

The automatic paper stack bundling equipment can automatically complete paper feeding, bundling and rubberizing operations, adopts a three-step paper folding mode of primary paper folding, secondary paper folding and indexing supporting plate 231 paper folding, can efficiently and reliably complete packaging paper folding operation, provides packaging for subsequent rubberizing operation, and has good bundling effect and high operation efficiency.

An automatic bundling method for paper stacks adopts the automatic bundling equipment for paper stacks;

At least comprises the following steps:

S1, feeding: feeding the stack of sheets onto a carrying unit 211 located at the feeding station 121 while the feeding module 6 is operating, feeding the wrapping sheets between the feeding station 121 and the strapping station 111; at this time, the wrapping paper is positioned above the paper stack;

s2, lifting: the lifting driving unit 212 works to push the bearing unit 211 and the paper stack to lift upwards, pass through the lifting channel 113 and enter the bundling station 111; at this time, the upper surface of the carrying unit 211 is not lower than the upper surface of the pre-folding push block 2221; in the ascending process, the packaging paper contacts with the paper stack and is lifted synchronously, and two ends of the packaging paper droop;

S3, paper clamping: the primary driving piece 2223 works, and the two pre-folding pushing blocks 2221 approach each other and move to the lower part of the paper stack; the lifting driving unit 212 resets, and drives the bearing unit 211 to move downwards, so that the paper stack falls onto the pre-folding pushing block 2221;

the secondary driving piece 2211 works and drives the secondary insertion plate 2212 to move along the corresponding secondary paper folding groove 2222 until part of the secondary insertion plate passes through the corresponding pre-folding pushing block 2221, so as to carry out folding operation on the corresponding end part of the packaging paper;

S4, indexing: the indexing driving unit 232 works to drive the indexing support plate 231 to move to the bundling station 111, at this time, the indexing support plate 231 is inserted into the secondary paper folding groove 2222 and partially passes through the corresponding pre-folding pushing block 2221, and folding of the corresponding end part of the packaging paper is completed in the process of inserting the indexing support plate 231; subsequently, the indexing driving unit 232 continues to operate to drive the indexing pallet 231, the stack of papers and the wrapping papers to be indexed to the rubberizing station 112;

S5, rubberizing: the taping module 4 works to paste the adhesive tape at the end of the wrapping paper below the stack.

In summary, the foregoing description is only of the preferred embodiments of the invention, and is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (10)

1. An automated paper stack bundling apparatus, comprising at least:

the machine frame is provided with a feeding station, a binding station and a rubberizing station, wherein the binding station is provided with a lifting channel, and the feeding station is positioned below the lifting channel;

the paper feeding module is used for conveying the packaging paper between the feeding station and the bundling station;

the bundling module comprises a lifting component, a paper folding component and an indexing component,

The lifting assembly comprises a bearing unit and a lifting driving unit, and the lifting driving unit is used for driving the bearing unit to move between a feeding station and a bundling station;

The paper folding assembly comprises a primary paper folding mechanism and a secondary paper folding mechanism, wherein the primary paper folding mechanism comprises two pre-folding push blocks, the two pre-folding push blocks are opposite left and right relative to the bundling station, and the primary paper folding mechanism also comprises a primary driving piece for driving the pre-folding push blocks to move in a translational manner relative to the bundling station; the secondary paper folding mechanism comprises a secondary inserting plate and a secondary driving piece, and the secondary driving piece is used for driving the secondary inserting plate to move in a translation mode;

The indexing assembly comprises an indexing supporting plate and an indexing driving unit, wherein the indexing driving unit is used for driving the indexing supporting plate to move between a binding station and a rubberizing station;

The secondary plugboard corresponds to one of the pre-folding pushing blocks, and the transposition supporting plate corresponds to the other pre-folding pushing block; the upper surface of the pre-folding pushing block is provided with a secondary paper folding groove, and the secondary inserting plate and the transposition supporting plate can be partially inserted into the secondary paper folding groove of the corresponding pre-folding pushing block;

the rubberizing module corresponds to the rubberizing station;

The discharging module comprises a discharging clamping jaw and a discharging driving unit, wherein the discharging driving unit is used for driving the discharging clamping jaw to clamp and transfer paper stacks at the rubberizing station.

2. The automated paper stack bundling apparatus according to claim 1, wherein: the bearing unit comprises a fixed block, two sides of the fixed block are respectively provided with a movable block, the movable blocks are arranged opposite to the pre-folding pushing blocks, and the movable blocks are connected with the fixed block through lateral elastic pieces; the fixed block is connected with the lifting driving unit.

3. The automated paper stack bundling apparatus according to claim 1, wherein: the paper folding assembly further comprises a paper folding compressing mechanism, the paper folding compressing mechanism comprises a fixing seat and a compressing block, and the compressing block is connected with the fixing seat through a compressing elastic piece; the paper folding and pressing mechanism is positioned above the binding station, and the pressing blocks are arranged towards the binding station.

4. The automated paper stack bundling apparatus according to claim 1, wherein: the paper folding assembly also comprises a primary paper folding bracket, and two primary paper folding mechanisms are arranged on the primary paper folding bracket and also comprise lifting cylinders for driving the primary paper folding bracket to ascend and descend.

5. The automated paper stack bundling apparatus according to claim 1, wherein: the indexing assembly further comprises an indexing limiting unit, the indexing limiting unit comprises an upper limiting plate and a limiting driving unit, the upper limiting plate and the indexing supporting plate are arranged up and down oppositely, and the limiting driving unit is used for driving the upper limiting plate to move up and down relative to the indexing supporting plate.

6. The automated paper stack bundling apparatus according to claim 1, wherein: the paper feeding module comprises a paper feeding assembly, and the paper feeding assembly comprises a paper cutting mechanism and a feeding mechanism;

The paper cutting mechanism comprises a paper cutting platform, a paper cutting driving piece and a first cutter, wherein the first cutter is positioned above the paper cutting platform, and the paper cutting driving piece is used for driving the first cutter to move up and down relative to the paper cutting platform;

The feeding mechanism comprises a paper feeding chuck and a feeding driving piece, and the feeding driving piece is used for driving the paper feeding chuck to take paper from the paper cutting platform and move in a translational mode.

7. The automated paper stack bundling apparatus according to claim 6, wherein: the paper feeding module further comprises a paper placing assembly, wherein the paper placing assembly comprises a paper storage bracket and a paper pulling mechanism, and the paper pulling mechanism is positioned between the paper storage bracket and the paper cutting mechanism;

the paper pulling mechanism comprises at least two fixed shafts, and a movable shaft is arranged between every two adjacent fixed shafts; the paper pulling mechanism also comprises a paper pulling driving piece, and the paper pulling driving piece is used for driving the movable shaft to move relative to the fixed shaft.

8. The automated paper stack bundling apparatus according to any of claims 1-7, wherein: the rubberizing module comprises a rubberizing assembly and a rubberizing assembly, wherein the rubberizing assembly comprises a rubberizing storage bracket, a rubberizing mechanism and a rubberizing mechanism;

The glue cutting mechanism comprises a glue cutting base, a second cutter and a glue cutting driving piece, wherein the glue cutting driving piece is used for driving the second cutter to move relative to the glue cutting base;

The rubberizing assembly comprises a rubberizing head and a rubberizing driving piece, wherein the rubberizing head is arranged upwards and forms a rubberizing zone above, and the rubberizing driving piece is used for driving the rubberizing head to move up and down;

the glue feeding mechanism comprises a glue feeding chuck and a glue feeding driving piece, wherein the glue feeding driving piece is used for driving the glue feeding chuck to clamp the adhesive tape from the glue cutting mechanism and convey the adhesive tape to a glue pasting section.

9. The automated paper stack bundling apparatus according to claim 8, wherein: the rubberizing driving piece comprises a primary cylinder and a secondary cylinder, the primary cylinder is fixedly arranged on the frame, and the output end of the primary cylinder is connected with a transition connecting block; the second-stage air cylinder is arranged on the transition connecting block, and the output end of the second-stage air cylinder is connected with the rubberizing head.

10. An automatic bundling method for paper stacks is characterized in that: use of an automated paper stack strapping device according to any of the claims 1-9;

At least comprises the following steps:

s1, feeding: feeding the paper stack onto a bearing unit positioned at a feeding station, and simultaneously, working a paper feeding module to convey the packaging paper between the feeding station and a bundling station; at this time, the wrapping paper is positioned above the paper stack;

s2, lifting: the lifting driving unit works to push the bearing unit and the paper stack to lift upwards, pass through the lifting channel and enter the bundling station; at this time, the upper surface of the bearing unit is not lower than the upper surface of the pre-folding pushing block; in the ascending process, the packaging paper contacts with the paper stack and is lifted synchronously, and two ends of the packaging paper droop;

S3, paper clamping: the primary driving piece works, and the two pre-folding pushing blocks are close to each other and move to the lower part of the paper stack; the lifting driving unit resets, the bearing unit is driven to move downwards, and the paper stack falls onto the pre-folding pushing block;

The secondary driving piece works and drives the secondary inserting plate to move along the corresponding secondary paper folding groove until part of the secondary inserting plate passes through the corresponding pre-folding pushing block, so that the corresponding end part of the packaging paper is folded;

S4, indexing: the indexing driving unit works and drives the indexing supporting plate to move to the binding station, at the moment, the indexing supporting plate is inserted into the secondary paper folding groove and partially penetrates through the corresponding pre-folding pushing block, and folding of the corresponding end part of the packaging paper is completed in the process of inserting the indexing supporting plate; then, the transposition driving unit continues to work to drive the transposition support plate, the paper stack and the packaging paper to be transposed to the rubberizing station;

S5, rubberizing: the rubberizing module works, and the adhesive tape is pasted at the end part of the packing paper, which is positioned below the material stack.