CN221835614U - A strapping module for automated strapping of paper stacks - Google Patents

Abstract

The utility model relates to the field of automated packaging, and specifically discloses a bundling module for automated bundling of paper stacks. The bundling module includes a paper folding assembly, and the paper folding assembly includes a primary paper folding mechanism and a secondary paper folding mechanism. The primary paper folding mechanism includes two pre-folding push blocks, and the primary paper folding mechanism also includes a primary driving member for driving the pre-folding push block to move in translation; the secondary paper folding mechanism includes a secondary plug-in plate and a secondary driving member, and the secondary driving member is used to drive the secondary plug-in plate to move in translation; the secondary plug-in plate corresponds to one of the pre-folding push blocks, and a secondary paper folding groove is provided on the upper surface of the pre-folding push block, and the secondary plug-in plate and the transfer support plate can be partially inserted into the secondary paper folding groove of the corresponding pre-folding push block. The above-mentioned bundling module can automatically complete the bundling operation, and has the advantages of reliable bundling effect and high bundling efficiency.

Description

A strapping module for automated strapping of paper stacks

Technical Field

The utility model relates to the field of automated packaging, in particular to a bundling module for automated bundling of paper stacks.

Background Art

For sheet-like products, they are often stacked, packaged and transported in the form of stacks. For sheet-like products in which at least one set of side edges is a straight edge, they are often bundled and packaged with wrapping paper after being stacked into a certain number of stacks, so as to improve the stability of the stacking of the stacks and improve the efficiency of packaging and transportation. For example, before being folded into boxes, the outer packaging cartons of cigarettes exist in the form of printed and die-cut cardboard. Before transportation, a certain number of cardboards need to be stacked into a stack and bundled with kraft paper tape. At present, the bundling and packaging operations of the stacks are basically completed manually. Due to the large uncertainty of the bundling force and bundling position of each manual bundling operation, there are generally problems such as low packaging efficiency and unstable quality. While the production and processing of sheet-like products have generally been automated, the bundling and packaging of the stacks has largely limited the improvement of production efficiency.

The Chinese invention patent application with application publication number CN 111392121A discloses an automatic packaging device for finished cigarette box paperboards, which can automatically complete the operations of neatly feeding cigarette box paperboards, feeding and packing wrapping paper, pasting wrapping paper, etc., and has the advantage of high efficiency. However, the above automatic packaging device still has shortcomings, which are specifically reflected in: the bundling steps of wrapping paper are feeding wrapping paper into a ring--tidyly feeding cigarette box paperboard into the ring wrapping paper--adjusting the tightness of wrapping paper--cutting wrapping paper. In the above bundling process, how to limit the wrapping paper to be in a ring shape, how to adjust the tightness of wrapping paper, and the structure and working mode of the stopper are not clearly introduced, and the reliability of wrapping paper bundling is uncertain.

Summary of the invention

The technical problem to be solved by the utility model is to provide a bundling module for automatic bundling of paper stacks, which can automatically complete the bundling operation and has the advantages of reliable bundling effect and high bundling efficiency.

In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a bundling module for automatic bundling of paper stacks, characterized in that: it includes a lifting component and a paper folding component, the paper folding component includes a primary paper folding mechanism and a secondary paper folding mechanism, the primary paper folding mechanism includes two pre-folding push blocks, the two pre-folding push blocks are opposite to each other, the primary paper folding mechanism also includes a primary driving member for driving the pre-folding push blocks to move in translation; the secondary paper folding mechanism includes a secondary plug plate and a secondary driving member, the secondary driving member is used to drive the secondary plug plate to move in translation;

The secondary plug plate corresponds to one of the pre-folding push blocks, the upper surface of the pre-folding push block is provided with a secondary paper folding groove, and the secondary plug plate can be partially inserted into the secondary paper folding groove of the corresponding pre-folding push block;

The lifting assembly includes a bearing unit and a lifting drive unit. The bearing unit is located below the paper folding assembly, and the lifting drive unit is used to drive the bearing unit to move up and down.

When bundling paper stacks, first place the paper stack on the carrying unit and place the wrapping paper on top of the paper stack. The lifting drive unit pushes the carrying unit and the paper stack upward to between the two pre-folding push blocks. During the lifting process, the wrapping paper contacts the paper stack and is lifted synchronously, with both ends of the wrapping paper hanging down.

Subsequently, the primary drive member drives the two pre-folding push blocks to move to the bottom of the paper stack, folds the lower end of the wrapping paper to the bottom of the paper stack, and the paper stack falls onto the pre-folding push blocks. Due to the obstruction of the bearing unit, the movement range of the pre-folding push blocks is limited. The lifting drive unit is reset, driving the bearing unit to move downward to leave space for the secondary folding. The secondary drive member continues to work, driving the secondary plug plate to move along the corresponding secondary paper folding slot until it partially passes through the corresponding pre-folding push block, and folds the corresponding end of the wrapping paper. Since the bearing unit has been reset at this time, it can be ensured that the corresponding end of the wrapping paper is folded smoothly.

The paper stack automatic bundling equipment of the present application can automatically complete the bundling operation, and adopts the paper folding method of single folding and double folding, which can efficiently and reliably complete the packaging paper folding operation, provide packaging for subsequent gluing operations, and has good bundling effect and high operating efficiency.

Preferably, the origami assembly further comprises an origami pressing mechanism, which comprises a fixed seat and a pressing block, wherein the pressing block is connected to the fixed seat via a pressing elastic member; the origami pressing mechanism is located above the origami assembly, wherein the pressing block is arranged toward the origami assembly.

During the primary folding and secondary folding processes, the paper folding pressing mechanism provides pre-tightening pressure to the packaging paper and the material stack, thereby pressing the paper stack and the packaging paper.

Preferably, the bearing unit includes a fixed block, movable blocks are respectively provided on both sides of the fixed block, the movable block is arranged opposite to the pre-folding push block, and the movable block is connected to the fixed block through a lateral elastic member; the fixed block is connected to the lifting drive unit.

As the wrapping paper is lifted along with the paper stack, the two ends of the wrapping paper naturally droop and are in a relatively loose state. In order to ensure the reliability of the bundling and packaging, during a paper folding process, the pre-folding push block contacts the movable block and together presses the lower end of the wrapping paper. Since the movable block can move relative to the fixed block, after clamping the wrapping paper, the pre-folding push block and the movable block can also move together for a distance to tighten the wrapping paper, making the bundling effect more compact and reliable.

In addition, in order to realize paper folding, the pre-folding push block needs to extend a certain distance below the paper stack, but if a large space is left on both sides of the load-bearing unit, it will inevitably affect the reliability of lifting the paper stack. In order to ensure the reliability of the load-bearing unit lifting the paper stack and take into account the space requirements for one paper folding, movable blocks are set on both sides of the lifting unit. During the lifting process, the movable blocks can play the role of lifting the paper stack. During one paper folding process, the movable blocks can retract under the push of the pre-folding push block, leaving enough space for one paper folding.

Preferably, it also includes a transfer component, which includes a transfer pallet and a transfer drive unit, and the transfer drive unit is used to drive the transfer pallet to move; the transfer pallet can be partially inserted into the secondary paper folding slot of the corresponding pre-folding push block.

After the secondary folding is completed, the transfer drive unit drives the transfer tray to insert into the secondary folding slot and partially pass through the corresponding pre-folding push block to complete the folding of the corresponding end of the packaging paper. At the same time, the transfer assembly can transfer the paper stack and the packaging paper synchronously.

Preferably, the transfer drive unit includes a transverse drive member, an intermediate slider and a longitudinal drive member, wherein the transverse drive member is used to drive the intermediate slider to translate, and the longitudinal drive member is arranged on the intermediate slider, and the longitudinal drive member is used to drive the transfer pallet to move relative to the pre-folding push block.

Preferably, the transfer assembly further comprises a transfer limit unit, which comprises an upper limit plate and a limit drive unit, wherein the upper limit plate is arranged relative to the transfer pallet in upper and lower directions, and the limit drive unit is used to drive the upper limit plate to move up and down relative to the transfer pallet.

During the transfer of the paper stack, the upper limit plate and the transfer support plate jointly press the paper stack to effectively ensure the stability of the paper stack during the transfer process. At the same time, the folding part of the lower end of the packaging paper can be effectively limited to ensure the smooth glueing operation.

Preferably, the paper folding assembly further includes a primary paper folding support, and the two primary paper folding mechanisms are both arranged on the primary paper folding support; and further includes a lifting cylinder for driving the primary paper folding support to rise and fall.

Since the secondary paper folding groove will cause a certain obstacle to the translational movement of the transfer pallet, a primary paper folding bracket is set up. During the paper folding process, the primary paper folding bracket is in a raised state. When the transfer operation is required, the primary paper folding bracket falls down to leave space for the translational movement of the transfer pallet.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an automated paper stack bundling device according to the present embodiment;

FIG2 is a schematic structural diagram of the automatic paper stack bundling device according to the present embodiment from a rear side perspective;

3 is a schematic diagram of the structure of the paper stack automatic bundling equipment of this embodiment without the temporary storage conveying line and the material storage line;

FIG4 is a schematic diagram of the rear structure of the paper stack automated bundling equipment of this embodiment without the temporary storage conveyor line and the material storage line;

FIG5 is a schematic diagram of the structure of a frame in the paper stack automated bundling device of this embodiment;

FIG6 is a top view of a frame in the paper stack automated bundling device of this embodiment;

7 is a side view of the cooperation between the paper feeding module and the strapping module in the paper stack automatic strapping device of this embodiment;

8 is a schematic structural diagram of the cooperation between the paper feeding module and the strapping module in the paper stack automatic strapping device of this embodiment;

9 is a schematic diagram of the structure of the cooperation between the feeding module and the lifting assembly in the paper stack automatic bundling equipment of this embodiment;

10 is a schematic diagram of the structure of the coordination between the material sorting component and the lifting component in the paper stack automated bundling device of this embodiment;

FIG11 is a top view of the material sorting assembly in the paper stack automated bundling device of this embodiment;

FIG12 is a schematic structural diagram of a lifting assembly in the paper stack automated bundling device of this embodiment;

13 is a schematic diagram of the structure of the paper folding assembly and the second platform in the paper stack automatic bundling device of this embodiment;

FIG14 is a side view of the paper folding assembly in the paper stack automated bundling device of this embodiment;

FIG15 is a schematic diagram of the structure of a paper folding assembly in the paper stack automated bundling device of this embodiment;

FIG16 is a schematic diagram of the structure of the transfer assembly in the paper stack automated bundling device of this embodiment;

17 is a schematic structural diagram of a paper feeding module in the paper stack automated bundling device of this embodiment;

18 is a schematic structural diagram of a paper feeding module from a rear side perspective in the paper stack automated bundling device of this embodiment;

19 is a schematic structural diagram of a paper cutting mechanism in the paper stack automated bundling device of this embodiment;

FIG20 is a side view of the paper cutting mechanism in the paper stack automated bundling device of this embodiment;

21 is a schematic structural diagram of a paper pulling mechanism in the paper stack automated bundling device of this embodiment;

22 is a schematic structural diagram of the cooperation between the gluing module and the second platform in the paper stack automated bundling device of this embodiment;

FIG23 is a front view of the gluing module in the paper stack automated bundling device of this embodiment;

FIG24 is a schematic structural diagram of a gluing module in the paper stack automated bundling device of this embodiment;

FIG25 is a cross-sectional view of a gluing module in the paper stack automated bundling device of this embodiment;

FIG26 is a schematic structural diagram of a rubber cutting mechanism in the paper stack automated bundling device of this embodiment;

27 is a schematic diagram of the structure of the discharging module and the gluing module in the paper stack automatic bundling equipment of this embodiment;

FIG. 28 is a schematic structural diagram of the coordination between the discharging conveying line and the storage line in the paper stack automatic bundling equipment of this embodiment.

Implementation

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

Example

As shown in FIGS. 1 to 4 , an automatic paper stack bundling device includes a frame 1 , a feeding module 3 , a paper feeding module 6 , a bundling module 2 , a gluing module 4 and a discharging module 5 .

As shown in Fig. 3 to Fig. 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 gluing station 112. The bundling station 111 is provided with a lifting channel 113, and the lifting channel 113 is arranged to pass through the second platform 11 from top to bottom, and the feeding station 121 and the lifting channel 113 are arranged in alignment.

As shown in Figures 7 to 11, the feed module 3 includes a feed conveyor belt 32 and a material sorting component 33. The material sorting component 33 includes a lateral positioning plate 333, an end-to-end sorting mechanism and a lateral pushing mechanism. The end-to-end sorting unit and the lateral pushing unit are located on the same side of the lateral positioning plate 333.

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

As shown in Fig. 8 to Fig. 10, the lateral pushing mechanism includes a pushing plate 331 and a pushing driving member, wherein the pushing plate 331 is arranged 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 feed conveyor belt 32 and the feed finishing area. The lateral pushing mechanism is fixedly connected to the end pressure plate 332 and moves synchronously.

During feeding, the paper stack is first transported to the output end by the feeding conveyor belt 32, and the push drive and the end drive work together to drive the push plate 331 to move to the rear side of the paper stack, and then the push drive moves in the direction to push the paper stack into the feeding sorting area, and the push plate 331 cooperates with the lateral positioning plate 333 to complete the lateral sorting of the paper stack. Finally, the end drive works to drive the two end pressing plates 332 to approach each other to complete the end sorting.

As shown in Fig. 1 and Fig. 2, the feed module 3 further includes a temporary storage conveyor line 31, the output end of the temporary storage conveyor line 31 is aligned with the input end of the feed conveyor belt 32, and the temporary storage conveyor line 31 can sequentially place multiple paper stacks along the conveying direction. The input end of the feed conveyor belt 32 is also provided with a photoelectric detection unit. When the temporary storage conveyor line 31 feeds a single paper stack into the feed conveyor line, the photoelectric detection unit detects a material signal, and the temporary storage conveyor line 31 stops working, ensuring that only a single paper stack enters the feed conveyor belt 32 at a time.

As shown in FIG. 7 , the paper feeding module 6 is used to transport the packaging paper between the feeding station 121 and the strapping station 111 , and includes a paper feeding component 61 and a paper placing component 62 .

As shown in Figures 17 to 21, the paper feeding assembly 61 includes a paper cutting mechanism 612 and a feeding mechanism 611. As shown in Figures 19 and 20, the paper cutting mechanism 612 includes a paper cutting platform 6122, a paper cutting drive and a first cutter 6123. The first cutter 6123 is located above the paper cutting platform 6122. The paper cutting drive is used to drive the first cutter 6123 to move up and down relative to the paper cutting platform 6122. Specifically, the paper cutting platform 6122 is located on one side of the second platform 11 and between the first platform 12 and the second platform 11. The height difference between the paper cutting platform 6122 and the first platform 12 is not less than the height of the paper stack. The paper cutting platform 6122 also includes two paper pressing units 6121. The paper pressing units include a paper pressing board and a paper pressing drive unit arranged toward the paper cutting platform 6122. The paper pressing drive unit drives the paper pressing board to move up and down. The first cutter 6123 is located between the two paper pressing boards.

As shown in Figures 17 and 18, the feeding mechanism 611 includes a paper feed chuck and a feeding drive. Specifically, the paper feed chuck is a negative pressure adsorption head. Specifically, a guide rail is installed on the lower surface of the second platform 11, and the paper feed chuck is slidably connected to the second platform 11 through the guide rail. The feeding drive is a cylinder or a transmission belt that drives the paper feed chuck to slide. The feeding drive is used to drive the paper feed chuck to pick up paper on the paper cutting platform 6122 and translate toward the second platform 11 for a specific length.

As shown in FIG. 21 , the paper placing assembly 62 includes a paper storage bracket 621 and a paper pulling mechanism 622, and the paper pulling mechanism 622 is located between the paper storage bracket 621 and the paper cutting mechanism 612. The paper storage bracket 621 includes a paper storage shaft 6212, and the paper storage shaft 6212 is arranged on the frame 1 through a magnetic torquer 6211. The magnetic torquer 6211 can control the torque of the feeding mechanism 611 and the paper pulling mechanism 622 to pull the packaging paper out of the paper storage bracket 621, so as to ensure the stable paper pulling process.

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

As shown in FIG21 , specifically, the fixed shaft 6223 and the movable shaft 6222 are relatively parallel and parallel to the paper storage shaft 6212, and are relatively perpendicular to the paper feeding direction of the feeding mechanism 611. The fixed shaft 6223 and the movable shaft 6222 are respectively connected to the frame 1, and each fixed shaft 6223 is located at the same horizontal height, and the paper pulling drive member is used to drive the movable shaft 6222 to move up and down.

The paper storage bracket 621 is used to store a whole roll of wrapping paper. In order to reduce the resistance of the feeding mechanism 611 in feeding paper, a paper pulling mechanism 622 is provided to pull the wrapping paper out of the paper roll by a certain length in advance. When the paper pulling operation is performed, the free end of the wrapping paper first passes around the fixed shaft 6223 and the movable shaft 6222, and is pressed and fixed on the paper cutting platform 6122 by the paper pulling and pressing unit 6221. Then, the movable shaft 6222 moves relative to the fixed shaft 6223, and the wrapping paper can be pulled out of the paper roll.

During the paper feeding operation, first, the two paper pressing units 6121 are in a lifted state, and the feeding drive drives the paper feeding chuck to suck the end of the wrapping paper and feed horizontally, and the wrapping paper passes under the two paper pressing units 6121. After the wrapping paper is fed to a specific length, the paper pressing unit 6121 presses the wrapping paper, and the first cutter 6123 cuts the wrapping paper. Before the feeding mechanism 611 feeds the paper, the movable shaft 6222 is reset, and the pulled-out wrapping paper is in a relaxed state, so that the feeding mechanism 611 can easily feed the paper. Before the paper stack is lifted, the paper feeding chuck and the paper pressing unit 6121 wrap the wrapping paper.

As shown in FIG. 7 and FIG. 8 , the strapping module 2 includes a lifting component 21 , a paper folding component 22 and a transfer component 23 .

As shown in Fig. 7 to Fig. 12, the lifting assembly 21 includes a bearing unit 211 and a lifting drive unit 212, wherein the lifting drive unit 212 is used to drive the bearing unit 211 to move between the feeding station 121 and the bundling station 111. Specifically, the bearing unit 211 has at least two positions. In the first position, the bearing unit 211 is located in the feeding sorting area and is not higher than the feeding conveyor belt 32; in the second position, the bearing unit 211 is located in the bundling station 111 and is not lower than the pre-folding push block 2221. The lifting drive unit 212 is a cylinder that drives the bearing unit 211 to move up and down.

As shown in FIG12 , the bearing unit 211 includes a fixed block 2111, and movable blocks 2112 are respectively disposed on both sides of the fixed block 2111. The movable block 2112 is disposed opposite to the pre-folding push block 2221, and the movable block 2112 is connected to the fixed block 2111 via a lateral elastic member. The fixed block 2111 is connected to the lifting drive unit 212.

As the wrapping paper is lifted along with the paper stack, the two ends of the wrapping paper naturally droop and are in a relatively loose state. In order to ensure the reliability of the bundling and packaging, during a paper folding process, the pre-folding push block 2221 contacts the movable block 2112 and together presses the lower end of the wrapping paper. Since the movable block 2112 can move relative to the fixed block 2111, after clamping the wrapping paper, the pre-folding push block 2221 and the movable block 2112 can also move together for a distance to tighten the wrapping paper, making the bundling effect more compact and reliable.

In addition, in order to realize paper folding, the pre-folding push block 2221 needs to extend a certain 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 inevitably be affected. In order to ensure the reliability of the carrying unit 211 lifting the paper stack and take into account the space requirements for one paper folding, movable blocks 2112 are respectively arranged on both sides of the lifting unit. During the lifting process, the movable blocks 2112 can play the role of lifting the paper stack. During one paper folding process, the movable blocks 2112 can retract under the push of the pre-folding push block 2221, leaving enough space for one paper folding.

As shown in Fig. 13 to Fig. 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, which are opposite to each other in the left and right relative to the strapping station 111. The primary paper folding mechanism 222 also includes a primary driving member 2223 for driving the pre-folding push blocks 2221 to translate relative to the strapping station 111. The secondary paper folding mechanism 221 includes a secondary plug plate 2212 and a secondary driving member 2211, and the secondary driving member 2211 is used to drive the secondary plug plate 2212 to translate.

Furthermore, as shown in FIG. 7 and FIG. 8 , the origami assembly 22 further includes an origami pressing mechanism 24, which includes a fixed seat and a pressing block, and the pressing block is connected to the fixed seat via a pressing elastic member. The origami pressing mechanism 24 is located above the strapping station 111, and the pressing block is disposed toward the strapping station 111. During the primary folding and secondary folding processes, the origami pressing mechanism 24 provides pre-tightening pressure to the packaging paper and the stack of materials, thereby pressing the stack of paper and the packaging paper.

As shown in FIG. 16 , the indexing assembly 23 includes an indexing pallet 231 and an indexing drive unit 232 . The indexing drive unit 232 is used to drive the indexing pallet 231 to move between the bundling station 111 and the gluing station 112 .

As shown in Figure 16, specifically, the transfer drive unit 232 includes a transverse drive member, an intermediate slider and a longitudinal drive member. The transverse drive member is used to drive the intermediate slider to translate relative to the frame 1, and the longitudinal drive member is arranged on the intermediate slider, and the longitudinal drive member is used to drive the transfer pallet 231 to move relative to the pre-folding push block 2221.

As shown in FIG15 , the secondary plug plate 2212 corresponds to one of the pre-folding push blocks 2221, and the transfer support plate 231 corresponds to the other pre-folding push block 2221. A secondary paper folding groove 2222 is provided on the upper surface of the pre-folding push block 2221, and the secondary plug plate 2212 and the transfer support plate 231 can be partially inserted into the secondary paper folding groove 2222 of the corresponding pre-folding push block 2221.

Since the secondary paper folding groove 2222 will form a certain obstacle to the translational movement of the transfer support plate 231, it is necessary to add a drive, and a corresponding lifting cylinder can be set in the transfer assembly 23 to drive the transfer support plate 231 to move up and down, so that the transfer support plate 231 and the pre-folding push block 2221 are staggered in height. In this embodiment, the method adopted is to set a primary paper folding bracket 223 above the second platform 11, and the two primary paper folding mechanisms 222 are both set on the primary paper folding bracket 223. At the same time, a lifting cylinder is set below the second platform 11 to drive the primary paper folding bracket 223 to rise and fall. During the paper folding process, the primary paper folding bracket 223 is in a lifted state. When the transfer operation is required, the primary paper folding bracket 223 falls to leave space for the translational movement of the transfer support plate 231.

As shown in Figure 16, further, the transfer assembly 23 also includes a transfer limit unit 233, and the transfer limit unit 233 includes an upper limit plate and a limit drive unit. The upper limit plate and the transfer support plate 231 are arranged relative to each other up and down, and the limit drive unit is used to drive the upper limit plate to move up and down relative to the transfer support plate 231.

When the paper stack is transferred from the bundling station 111 to the gluing station 112, the upper limit plate and the transfer support plate 231 press the paper stack together to effectively ensure the stability of the paper stack during the transfer process. At the same time, the folding part at the lower end of the packaging paper can be effectively limited to ensure the smooth progress of the gluing operation.

As shown in Figures 3 to 6, the glue sticking module 4 corresponds to the glue sticking station 112. As shown in Figures 22 to 26, the glue sticking module 4 includes a glue feeding component and a glue sticking component 43, and the glue feeding component includes a glue storage bracket 41, a glue cutting structure 42 and a glue feeding mechanism 45. The glue storage bracket 41 is used to store a whole roll of adhesive tape.

As shown in FIGS. 22 to 26 , the rubber cutting structure 42 includes a rubber cutting base 47, a second cutting knife 46 and a rubber cutting driving member, wherein the rubber cutting driving member is used to drive the second cutting knife 46 to move relative to the rubber cutting base 47. A rubber pressing unit 421 is provided on the rubber cutting base 47, wherein the rubber pressing unit 421 includes a tape pressing plate and a rubber pressing driving member, wherein the tape pressing plate is located above the rubber cutting base 47, and the rubber pressing driving member is used to drive the tape pressing plate to move up and down.

As shown in Figures 22 to 26, the glue sticking assembly 43 includes a glue sticking head 431 and a glue sticking driving member. The glue sticking head 431 is arranged upward and forms a glue sticking area on the upper side. The glue sticking driving member is used to drive the glue sticking head 431 to move up and down. The glue sticking head 431 includes a negative pressure adsorption unit. Specifically, the glue sticking head 431 is provided with a glue sticking surface, and the adsorption surface of the negative pressure adsorption unit is located on the glue sticking surface.

As shown in Figures 22 to 26, the glue feeding mechanism 45 includes a glue feeding chuck and a glue feeding drive, and the glue feeding drive is used to drive the glue feeding chuck to clamp the adhesive tape from the glue cutting structure 42 and transfer it to the glue sticking area. The glue feeding mechanism 45 is used to clamp the adhesive tape, pull out a certain length and move it to the glue sticking area, and the glue cutting structure 42 is used to cut the adhesive tape at a specific position.

As shown in Figure 26, the glue cutting base 47 is provided with a glue taking notch 471 on the side facing the glue sticking area, and the width of the glue taking notch 471 is smaller than the width of the tape. The corresponding tape pressing plate is also provided with an auxiliary notch, which matches and is aligned with the glue taking notch 471. The width of the second cutter 46 is larger than the width of the glue taking notch 471, and the width of the glue feeding chuck is smaller than the width of the glue taking notch 471.

The glue feeding chuck includes an upper chuck and a lower chuck, the clamping surface of the upper chuck is provided with an anti-sticking layer, and the tape pressing plate is also provided with an anti-sticking layer, and the anti-sticking layer is made of polytetrafluoroethylene material. Polytetrafluoroethylene is an oily material, which can not only press the tape tightly, but also has the effect of preventing adhesion with the tape.

As shown in FIG25 , further, the glue sticking driving member includes a primary cylinder 432 and a secondary cylinder 433. The primary cylinder 432 is fixedly arranged on the frame 1, and the output end of the primary cylinder 432 is connected with a transition connection block. The secondary cylinder 433 is installed on the transition connection block, and the output end of the secondary cylinder 433 is connected to the glue sticking head 431.

The glue sticking assembly 43 has two strokes, which are driven by the primary cylinder 432 and the secondary cylinder 433. One stroke is for the glue sticking head 431 to feed and contact with the tape to take the tape, and the second stroke is for the glue sticking head 431 to drive the tape to stick on the packaging paper.

As shown in Figures 22 and 23, the gluing module 4 also includes a gluing support frame 44, and the gluing support frame 44 includes two gluing support plates, and the gluing assembly 43 is located between the two gluing support plates. After the gluing of the paper stack is completed, the transfer assembly 23 is withdrawn from the gluing support frame 44 to leave space for subsequent unloading operations. Furthermore, the gluing support frame 44 is also connected to a support drive unit, and the support drive unit is used to drive the gluing support plate to move up and down. During the gluing process, the gluing support plate is in a falling state. After the gluing is completed, the gluing support plate is lifted to receive the paper stack, and then the transfer assembly 23 withdraws.

In the initial state, the carrying unit 211 is located at the feeding station 121. When the paper stack is being bundled, first, the paper stack is fed onto the carrying unit 211, and at the same time, the paper feeding module 6 conveys the wrapping paper between the feeding station 121 and the bundling station 111, and the wrapping paper is located above the paper stack. The lifting drive unit 212 pushes the carrying unit 211 and the paper stack upward, and passes through the lifting channel 113 to enter the bundling station 111. During the rising process, the wrapping paper contacts the paper stack and is lifted synchronously, and both ends of the wrapping paper droop.

Subsequently, the primary driving member 2223 drives the two pre-folding push blocks 2221 to move to the bottom of the paper stack, folds the lower end of the wrapping paper to the bottom of the paper stack, and the paper stack falls onto the pre-folding push block 2221. Due to the obstruction of the bearing unit 211, the movement range of the pre-folding push block 2221 is limited. The lifting driving unit 212 is reset, driving the bearing unit 211 to move downward to leave space for the secondary folding. The secondary driving member 2211 continues to work, driving the secondary plug plate 2212 to move along the corresponding secondary paper folding slot 2222 to partially pass through the corresponding pre-folding push block 2221, and folding the corresponding end of the wrapping paper. Since the bearing unit 211 has been reset at this time, it can be ensured that the corresponding end of the wrapping paper is folded smoothly.

Finally, the transfer drive unit 232 drives the transfer support plate 231 to be inserted into the secondary paper folding slot 2222, and partially pass through the corresponding pre-folding push block 2221, to complete the folding of the corresponding end of the wrapping paper, and place the paper stack as a whole on the transfer support plate 231. The transfer drive unit 232 drives the transfer support plate 231, the paper stack and the wrapping paper to transfer to the gluing station 112. The gluing module 4 works to stick the tape on the end of the wrapping paper below the material stack.

As shown in Figures 27 and 28, the discharging module 5 includes a discharging component 52, a discharging conveyor line 53, a storage line 51 and a product transfer component. The discharging component 52 is used to transfer the paper stack that has been glued from the gluing station 112 to the input end of the discharging conveyor line 53, and the product transfer component is used to transfer the paper stack from the output end of the discharging conveyor belt to the storage line 51.

As shown in Figures 27 and 28, the discharging assembly 52 includes a discharging clamp and a discharging drive unit, and the discharging drive unit is used to drive the discharging clamp to clamp and transfer the paper stack at the gluing station 112. The discharging clamp is arranged downward, and when discharging, the discharging clamp clamps the upper end of the paper stack, while the gluing place of the packaging paper is located at the lower end. After the discharging clamp clamps the paper stack, the self-weight of the paper stack can be used to check whether the gluing is reliable.

As shown in Figures 27 and 28, the product transfer assembly 23 includes a lifting unit 542 and a translation pushing unit 541. The discharge conveyor line 53 conveys the paper stack to the lifting unit 542. The lifting unit 542 descends to the same height as the storage line 51. The translation pushing unit 541 works to push the paper stack onto the storage line 51.

The paper stack automatic bundling equipment of the present application can automatically complete the paper feeding, bundling and gluing operations, and adopts a three-step paper folding method of single paper folding, double paper folding, and transfer plate 231 paper folding, which can efficiently and reliably complete the packaging paper folding operation, provide packaging for subsequent gluing operations, and has good bundling effect and high operating efficiency.

An automated paper stack bundling method, using the automated paper stack bundling device as described above;

At least the following steps are included:

S1. Feeding: The paper stack is fed into the carrying unit 211 located at the feeding station 121, and the paper feeding module 6 works to transport the wrapping paper between the feeding station 121 and the strapping station 111; at this time, the wrapping paper is located above the paper stack;

S2. Lifting: The lifting drive unit 212 works to push the carrying unit 211 and the paper stack upward, and pass through the lifting channel 113 to enter the strapping 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; during the rising process, the wrapping paper contacts the paper stack and is lifted synchronously, and both ends of the wrapping paper droop;

S3 paper clamp: the driving member 2223 works once, the two pre-folding push blocks 2221 approach each other and move to the bottom of the paper stack; the lifting drive unit 212 is reset, the driving bearing unit 211 moves downward, and the paper stack falls onto the pre-folding push block 2221;

The secondary driving member 2211 works to drive the secondary inserting plate 2212 to move along the corresponding secondary paper folding slot 2222 until it partially passes through the corresponding pre-folding push block 2221, and folds the corresponding end of the packaging paper;

S4. Transfer: The transfer drive unit 232 works to drive the transfer pallet 231 to move to the bundling station 111. At this time, the transfer pallet 231 is inserted into the secondary paper folding slot 2222 and partially passes through the corresponding pre-folding push block 2221. During the insertion of the transfer pallet 231, the corresponding end of the packaging paper is folded; then, the transfer drive unit 232 continues to work to drive the transfer pallet 231, the paper stack and the packaging paper to transfer to the gluing station 112;

S5. Gluing: The gluing module 4 works to stick adhesive tape on the end of the wrapping paper below the stack.

In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A binding module for automated binding of a stack of sheets, characterized by: the paper folding device comprises a lifting assembly and a paper folding assembly, wherein the paper folding assembly comprises a primary paper folding mechanism and a secondary paper folding mechanism, the primary paper folding mechanism comprises two pre-folding push blocks, the two pre-folding push blocks are oppositely arranged left and right, and the primary paper folding mechanism further comprises a primary driving piece for driving the pre-folding push blocks to move in a translation mode; 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 secondary inserting plate corresponds to one of the pre-folding pushing blocks, the upper surface of the pre-folding pushing block is provided with a secondary paper folding groove, and the secondary inserting plate can be partially inserted into the secondary paper folding groove of the corresponding pre-folding pushing block;

The lifting assembly comprises a bearing unit and a lifting driving unit, wherein the bearing unit is positioned below the paper folding assembly, and the lifting driving unit is used for driving the bearing unit to move up and down.

2. The strapping module of 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 compacting mechanism is positioned above the paper folding assembly, and the compacting block is arranged towards the paper folding assembly.

3. The strapping module of 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.

4. A strapping module as in any one of claims 1-3 wherein: the indexing assembly comprises an indexing supporting plate and an indexing driving unit, and the indexing driving unit is used for driving the indexing supporting plate to move; the indexing supporting plate can be partially inserted into the secondary paper folding groove corresponding to the pre-folding pushing block.

5. The strapping module of claim 4 wherein: the indexing driving unit comprises a transverse driving piece, a middle sliding block and a longitudinal driving piece, wherein the transverse driving piece is used for driving the middle sliding block to move in a translational mode, the longitudinal driving piece is arranged on the middle sliding block, and the longitudinal driving piece is used for driving the indexing supporting plate to move relative to the pre-folding pushing block.

6. The strapping module of claim 4 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.

7. The strapping module of claim 4 wherein: the paper folding assembly also comprises a primary paper folding bracket, and the two primary paper folding mechanisms are arranged on the primary paper folding bracket; the lifting cylinder is used for driving the primary paper folding support to ascend and descend.