阅读说明：本技术 簿本压平装置及压平方法 (Book flattening device and method ) 是由 朱波 于 2020-04-10 设计创作，主要内容包括：本发明公开了一种簿本压平装置及压平方法,所述压平装置包括机架、驱动机构、主传动轴、下压机构、滚压机构以及控制系统,所述下压机构包括下压槽凸轮、第一下压摆臂、第一下压拉杆、第二下压摆臂、第二下压拉杆和下压块,所述下压槽凸轮安装在所述主传动轴上且与所述主传动轴转动连接,所述第二下拉杆上连接有下压块；所述滚压机构包括滚压槽凸轮、第一滚压摆臂、第一滚压拉杆、第二滚压摆臂、第二滚压拉杆和滚动组件,所述滚压槽凸轮安装在所述主传动轴上且与所述主传动轴转动连接,所述第二滚压拉杆上连接有滚动组件；所述压平方法为,通过驱动机构带动所述主传动轴转动,所述主传动轴带动下压机构和滚压机构对生产线上的簿本进行压平整理。(The invention discloses a book flattening device and a flattening method, wherein the flattening device comprises a rack, a driving mechanism, a main transmission shaft, a pressing mechanism, a rolling mechanism and a control system, the pressing mechanism comprises a groove pressing cam, a first pressing swing arm, a first pressing pull rod, a second pressing swing arm, a second pressing pull rod and a pressing block, the groove pressing cam is arranged on the main transmission shaft and is rotationally connected with the main transmission shaft, and the second pressing pull rod is connected with the pressing block; the rolling mechanism comprises a rolling groove cam, a first rolling swing arm, a first rolling pull rod, a second rolling swing arm, a second rolling pull rod and a rolling assembly, the rolling groove cam is installed on the main transmission shaft and is in rotating connection with the main transmission shaft, and the second rolling pull rod is connected with the rolling assembly; the flattening method comprises the steps that the driving mechanism drives the main transmission shaft to rotate, and the main transmission shaft drives the pressing mechanism and the rolling mechanism to flatten books on the production line.)

1. The utility model provides a book flattening device which characterized in that includes:

a frame;

a drive mechanism;

the main transmission shaft is rotatably arranged on the rack and is in transmission connection with the driving mechanism;

the pressing mechanism comprises a pressing groove cam, a first pressing swing arm, a first pressing pull rod, a second pressing swing arm, a second pressing pull rod and a pressing block, the pressing groove cam is installed at one end of the main transmission shaft, the first pressing swing arm and the second pressing swing arm are both rotatably installed on the rack, the first pressing swing arm is matched with the pressing groove cam, one end of the first pressing pull rod is movably connected to the first pressing swing arm, the other end of the first pressing pull rod is movably connected to the second pressing swing arm, one end of the second pressing pull rod is movably connected with the second pressing swing arm, and the other end of the second pressing pull rod is movably connected with the pressing block; and

the rolling mechanism comprises a rolling groove cam, a first rolling swing arm, a first rolling pull rod, a second rolling swing arm, a second rolling pull rod and a rolling assembly, the rolling groove cam is mounted at the other end of the main transmission shaft, the first rolling swing arm and the second rolling swing arm are both rotatably mounted on the rack, the first rolling swing arm is matched with the rolling groove cam, one end of the first rolling pull rod is movably connected to the first rolling swing arm, the other end of the first rolling pull rod is movably connected to the second rolling swing arm, one end of the second rolling pull rod is rotatably connected with the second rolling swing arm, and the rolling assembly is connected to the other end of the second rolling pull rod;

the rolling assembly is arranged on the lower pressing block and is movably connected with the lower pressing block.

2. The book flattening device according to claim 1, characterized in that the device further comprises an auxiliary pressing mechanism, the auxiliary pressing mechanism comprises an auxiliary transmission shaft, an auxiliary swing arm and an auxiliary pull rod, the auxiliary swing arm is rotatably mounted on the frame, the second pressing swing arm and the auxiliary swing arm are rotatably mounted at two ends of the auxiliary transmission shaft respectively, one end of the auxiliary pull rod is connected to the auxiliary swing arm through a joint bearing, the other end of the auxiliary pull rod is connected to the lower pressing block through a joint bearing, and the auxiliary pull rod and the second pull rod are connected to two ends of the lower pressing block respectively.

3. The book flattening device according to claim 1, characterized in that the frame includes a first side frame and a second side frame, a support shaft is fixedly connected to the second side frame, and the second rolling swing arm is rotatably connected to the support shaft.

4. The book flattening device according to claim 3, characterized in that a first slide way and a second slide way are respectively provided on the first side frame and the second side frame, and the lower pressing block is installed in the first slide way and the second slide way.

5. The notebook flattening device according to claim 3, wherein the second rolling swing arm includes an upper connecting portion, a main body portion, and a lower connecting portion, the upper connecting portion and the lower connecting portion are respectively and fixedly connected to the main body portion, and the main body portion is sleeved on the support shaft and rotatably connected to the support shaft.

6. The book flattening device of claim 3, characterized in that the support shaft is fixedly connected to the second side frame by a support bracket.

7. The book flattening device according to claim 1, characterized in that two ends of the first pressing pull rod are respectively connected with the first pressing swing arm and the second pressing swing arm through joint bearings, and two ends of the second pressing pull rod are respectively connected with the second pressing swing arm and the pressing block through joint bearings.

8. The book flattening device according to claim 1, characterized in that two ends of the first rolling pull rod are respectively connected to the first rolling swing arm and the second rolling swing arm through joint bearings, and two ends of the second rolling pull rod are also respectively connected to the second rolling swing arm and the rolling assembly through joint bearings.

9. The book flattening device of any one of claims 1 to 8, characterized in that the rolling assembly includes a roller and a connecting plate, the roller is rotatably connected to the connecting plate, and the connecting plate is slidably connected to the lower pressing block.

10. A method for flattening a book, characterized in that the flattening device according to any one of claims 1 to 9 is used, the driving mechanism drives the main transmission shaft to rotate, the main transmission shaft drives the pressing mechanism and the rolling mechanism to flatten the book on the production line, wherein the book is firstly pressed vertically downwards by the pressing mechanism, and then is rolled on the surface of the book in the horizontal direction by the rolling mechanism.

Technical Field

The invention relates to processing equipment of a full-automatic book production line, in particular to a book flattening device and a flattening method.

Background

In the production process of the book, the printed paper stack needs to be bound and folded firstly, so that the book bound and folded is somewhat fluffy and is not very flat, and the following influences are caused: 1. the phenomena of blockage, blockage and the like are easily caused in the conveying process of the books, so that the books have to be shut down for treatment, the production process is seriously influenced, the productivity is reduced, and the books are wasted to cause great loss; 2. the book is not smooth or fluffy enough, and the adhesion is not tight, so that the storage and transportation of the product are influenced; 3. the appearance quality of the notebook is affected and the notebook is not beautiful enough. Therefore, research and development improvements on related production equipment and production processes are needed to improve the production level.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a book flattening device and a flattening method.

In order to achieve the purpose, the invention adopts the technical scheme that the notebook flattening device comprises:

a frame;

a drive mechanism;

the main transmission shaft is rotatably arranged on the rack and is in transmission connection with the driving mechanism;

the pressing mechanism comprises a pressing groove cam, a first pressing swing arm, a first pressing pull rod, a second pressing swing arm, a second pressing pull rod and a pressing block, the pressing groove cam is installed at one end of the main transmission shaft, the first pressing swing arm and the second pressing swing arm are both rotatably installed on the rack, the first pressing swing arm is matched with the pressing groove cam, one end of the first pressing pull rod is movably connected to the first pressing swing arm, the other end of the first pressing pull rod is movably connected to the second pressing swing arm, one end of the second pressing pull rod is movably connected with the second pressing swing arm, and the other end of the second pressing pull rod is movably connected with the pressing block; and

the rolling mechanism comprises a rolling groove cam, a first rolling swing arm, a first rolling pull rod, a second rolling swing arm, a second rolling pull rod and a rolling assembly, the rolling groove cam is mounted at the other end of the main transmission shaft, the first rolling swing arm and the second rolling swing arm are both rotatably mounted on the rack, the first rolling swing arm is matched with the rolling groove cam, one end of the first rolling pull rod is movably connected to the first rolling swing arm, the other end of the first rolling pull rod is movably connected to the second rolling swing arm, one end of the second rolling pull rod is rotatably connected with the second rolling swing arm, and the rolling assembly is connected to the other end of the second rolling pull rod;

the rolling assembly is arranged on the lower pressing block and is movably connected with the lower pressing block.

The driving mechanism drives the main transmission shaft to rotate, the main transmission shaft drives the lower groove pressing cam and the rolling groove rolling cam which are arranged at the two ends of the main transmission shaft to rotate, and then the lower groove pressing cam and the rolling groove rolling cam respectively drive the first lower swing arm and the first rolling swing arm to swing. The lower groove pressing cam and the rolling groove pressing cam are both provided with cam sliding grooves, and the bearing on the first lower pressing swing arm is clamped in the groove of the lower groove pressing cam and moves along the curve of the lower groove pressing cam; and the bearing on the first rolling swing arm is clamped in the groove of the rolling groove cam and moves along the curve of the rolling groove cam.

In an embodiment of the present invention, the pressing device further includes an auxiliary pressing mechanism, the auxiliary pressing mechanism includes a secondary transmission shaft, an auxiliary swing arm and an auxiliary pull rod, the auxiliary swing arm is rotatably mounted on the frame, the second pressing swing arm and the auxiliary swing arm are respectively rotatably mounted at two ends of the secondary transmission shaft, one end of the auxiliary pull rod is connected to the auxiliary swing arm through a joint bearing, the other end of the auxiliary pull rod is connected to the pressing block through a joint bearing, and the auxiliary pull rod and the second pull rod are respectively connected to two ends of the pressing block.

In an embodiment of the present invention, the rack includes a first side frame and a second side frame, the second side frame is fixedly connected to a support shaft, and the second rolling swing arm is rotatably connected to the support shaft. The first side frame and the second side frame are oppositely arranged, the main transmission shaft is transversely arranged on the rack, namely two ends of the main transmission shaft are respectively and rotatably arranged on the first side frame and the second side frame.

In an embodiment of the invention, the first side frame and the second side frame are respectively provided with a first slideway and a second slideway, and the lower pressing block is installed in the first slideway and the second slideway. The first slide and the second slide play a limiting role in the lower pressing block, so that the pressing position of the lower pressing block is accurate.

In an embodiment of the present invention, the second rolling swing arm includes an upper connecting portion, a main body portion, and a lower connecting portion, the upper connecting portion and the lower connecting portion are respectively and fixedly connected to the main body portion, and the main body portion is sleeved on the support shaft and rotatably connected to the support shaft.

In an embodiment of the invention, the bracket shaft is fixedly connected to the second side frame through a bracket. The bracket comprises a first bracket and a second bracket, and two ends of the bracket shaft are respectively fixed on the second side frame through the first bracket and the second bracket.

In an embodiment of the present invention, two ends of the first pressing pull rod are respectively connected to the first pressing swing arm and the second pressing swing arm through joint bearings, and two ends of the second pressing pull rod are respectively connected to the second pressing swing arm and the pressing block through joint bearings. And the first downward pressing pull rod is provided with a belleville spring.

In an embodiment of the present invention, two ends of the first rolling pull rod are respectively connected to the first rolling swing arm and the second rolling swing arm through joint bearings, and two ends of the second rolling pull rod are also respectively connected to the second rolling swing arm and the rolling assembly through joint bearings.

In an embodiment of the present invention, the rolling assembly includes a roller and a connecting plate, the roller is rotatably connected to the connecting plate, and the connecting plate is slidably connected to the lower pressing block.

In an embodiment of the present invention, the lower pressing block includes a lower pressing block body and a slide rail, the lower pressing block body is fixedly connected to the slide rail, the slide rail is located at the bottom of the lower pressing block body, and the slide rail is slidably connected to the connecting plate.

According to the book flattening method, the driving mechanism on the flattening device drives the main transmission shaft to rotate, the main transmission shaft drives the pressing mechanism and the rolling mechanism to flatten a book on a production line, wherein the pressing mechanism compresses the book vertically downwards, and then the rolling mechanism rolls the surface of the book in the horizontal direction.

The technical scheme has the following beneficial effects:

the invention can level and arrange the book by controlling the pressing mechanism and the rolling mechanism, so that the book is more level and smooth. The driving mechanism drives the main transmission shaft to rotate under the control of the control system, and the pressing mechanism and the rolling mechanism are respectively driven to act through the main transmission shaft. The final drive shaft rotates and drives the groove pressing cam and the rolling groove cam that are located its both ends simultaneously and rotates to loop through first swing arm, first pull rod, second swing arm and the second pull rod that pushes down with the action and transmit to the briquetting down, make the vertical downstream of briquetting down, will install the rolling subassembly in briquetting bottom down and compress tightly originally at book, at this moment, the rolling subassembly begins to carry out horizontal roll extrusion above this book, and this pressure is leveled thin book. The horizontal motion of the rolling assembly is that after the rolling groove cam rotates, the motion is transmitted to the second rolling pull rod through the first rolling swing arm, the first rolling pull rod and the second rolling swing arm in sequence, and the sliding assembly is pulled to move left and right through the second rolling pull rod. According to the invention, the book flattening device is additionally arranged in the production line to flatten and arrange the books, so that the interruption of the production process can be reduced, the production efficiency is ensured, and the quality of the final product is greatly improved.

Drawings

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

FIG. 2 is a left side view of an embodiment of the present invention;

FIG. 3 is a right side view of an embodiment of the present invention;

FIG. 4 is a front view of a roller grooved cam in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the invention of FIG. 4;

FIG. 6 is a front view of a first rolling swing arm in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view of the invention of FIG. 6;

FIG. 8 is a schematic structural view of a second rolling swing arm portion in accordance with an embodiment of the present invention;

FIG. 9 is a side view of the invention of FIG. 8;

FIG. 10 is a front view of the second rolling swing arm of FIG. 8 of the present invention;

figure 11 is a side view of the second rolling swing arm of figure 8 of the present invention;

FIG. 12 is a front view of a lower grooved cam in accordance with an embodiment of the present invention;

FIG. 13 is a cross-sectional view of FIG. 12 in accordance with the present invention;

FIG. 14 is a front view of the first hold-down swing arm in accordance with one embodiment of the present invention;

FIG. 15 is a cross-sectional view of the invention of FIG. 14;

FIG. 16 is a front view of a second hold-down swing arm in accordance with an embodiment of the present invention;

FIG. 17 is a top view of a second hold-down swing arm in accordance with an embodiment of the present invention;

FIG. 18 is a left side view of the second hold-down swing arm in accordance with one embodiment of the present invention;

fig. 19 is a schematic view of the structure of the rolling assembly cooperating with the lower pressing block in an embodiment of the present invention.

Description of reference numerals:

a push-down groove cam 11, a first push-down swing arm 12, a first push-down pull rod 13, a second push-down swing arm 14, a second push-down pull rod 15, a push-down block 16, a slide rail 161, a first cam slide groove 110, a first push-down swing arm shaft 122, a first rolling bearing 120, a first roller shaft 121;

the rolling groove cam 21, the first rolling swing arm 22, the first rolling pull rod 23, the second rolling swing arm 24, the second rolling pull rod 25, the rolling assembly 26, the second cam chute 210, the upper connecting part 241, the main body part 242, the lower connecting part 243, the connecting plate 261, the roller 262, the first rolling swing arm shaft 222, the second rolling bearing 220, the second roller shaft 221 and the joint bearing 333;

the support plate 100, the first side frame 101, the second side frame 102, the first slideway 51, the second slideway 52, the main transmission shaft 3, the support shaft 4, the first support 41, the second support 42, the belleville spring 6, the auxiliary transmission shaft 71, the auxiliary swing arm 72 and the auxiliary pull rod 73.

Detailed Description

The invention will now be further described with reference to the following examples and figures 1 to 19.

A book flattening device is shown in figures 1-3 and comprises a rack, a driving mechanism, a main transmission shaft 3, a pressing mechanism, a rolling mechanism and a control system, wherein books are flattened and arranged through the pressing mechanism and the rolling mechanism on the flattening device. The control system controls the driving mechanism to work, the main transmission shaft 3 is in transmission connection with the driving mechanism and drives the main transmission shaft 3 to rotate through the driving mechanism, and the driving mechanism comprises a driving motor. As shown in fig. 1, the main transmission shaft 3 is transversely installed on the machine frame, the machine frame includes a first side frame 101 and a second side frame 102, the first side frame 101 and the second side frame 102 are arranged oppositely, that is, two ends of the main transmission shaft 3 are respectively rotatably installed on the first side frame 101 and the second side frame 102, and the main transmission shaft 3 rotates to drive the pressing mechanism and the rolling mechanism to perform corresponding actions. A supporting plate 100 is transversely installed between the first side frame 101 and the second side frame 102, when a fluffy book runs onto the supporting plate 100, the pressing mechanism moves downwards to press the book, and then the rolling mechanism rolls on the surface of the book, so that the book is flattened.

As shown in fig. 3, the pressing mechanism includes a pressing grooved cam 11, a first pressing swing arm 12, a first pressing pull rod 13, a second pressing swing arm 14, a second pressing pull rod 15, and a pressing block 16, the pressing grooved cam 11 is installed outside the first side frame 101, as shown in fig. 1, the pressing grooved cam 11 is fixedly installed at one end of the main transmission shaft 3, and the first pressing swing arm 12 is matched with the pressing grooved cam 11. The first push-down swing arm 12 is rotatably mounted on the first side frame 101 through a first push-down swing arm shaft 122, and when the push-down slot cam 11 rotates, the first push-down swing arm 12 is driven to swing. As shown in fig. 12 to 15, a first cam sliding groove 110 is formed in the lower slot cam 11, a first roller shaft 121 is mounted on the first lower swing arm 12, a first rolling bearing 120 is mounted on the first roller shaft 121, the first rolling bearing 120 is located in the first cam sliding groove 110 and slides along a curve of the lower slot cam 11, and the swing motion of the first lower swing arm 12 is realized through the change of the stroke of the first rolling bearing 120, so as to transmit the motion.

One end of the first push-down pull rod 13 is connected to the first push-down swing arm 12 through a knuckle bearing 333, the other end of the first push-down pull rod 13 is connected to the second push-down swing arm 14 through a knuckle bearing, the structural schematic diagram of the second push-down swing arm 14 is shown in 16-18, and the second push-down swing arm 14 is rotatably mounted on the first side frame 101. In order to ensure the smooth and accurate action, a spring 6, which is a belleville spring, is arranged on the first lower pressure pull rod 13. The lower end of the second lower pull rod is connected with the second lower pressing swing arm 14 through a joint bearing, and the upper end of the second lower pull rod is connected with the lower pressing block 16 through a joint bearing. The lower pressing block 16 is a cross beam transversely installed between the first side frame 101 and the second side frame 102, and the lower pressing block 16 is pulled to move up and down through a second lower pull rod.

As shown in fig. 1 and 2, the rolling mechanism includes a rolling grooved cam 21, a first rolling swing arm 22, a first rolling pull rod 23, a second rolling swing arm 24, a second rolling pull rod 25, and a rolling assembly 26, the rolling grooved cam 21 is installed outside the second side frame 102, and the rolling grooved cam 21 is fixedly installed at the other end of the main transmission shaft 3. The first rolling swing arm 22 is matched with the rolling groove cam 21. The first rolling swing arm 22 is rotatably mounted on the second side frame 102 through a first rolling swing arm shaft 222, and when the rolling groove cam 21 rotates, the first rolling swing arm 22 is driven to swing. As shown in fig. 4 to 7, a second cam sliding groove 210 is formed in the rolling groove cam 21, a second roller shaft 221 is arranged on the first rolling swing arm 22, a second rolling bearing 220 is mounted on the second roller shaft 221, the second cam sliding groove 210 is located in the second cam sliding groove 210 and slides along the curve of the rolling groove cam 21, and the swing motion of the first rolling swing arm 22 is realized through the change of the stroke of the second cam sliding groove 210, so as to transmit the motion. The lower end of the first rolling pull rod 23 is connected to the first rolling swing arm 22 through a joint bearing 333, and the upper end of the first rolling pull rod 23 is connected to the second rolling swing arm 24 through a joint bearing.

The second rolling swing arm 24 is rotatably mounted on the second side frame 102, as shown in fig. 1 and 3, a support shaft 4 is fixedly connected to the second side frame 102, and is used for mounting the second rolling swing arm 24. The support shaft 4 is fixedly connected to the second side frame 102 through a support. The bracket comprises a first bracket 41 and a second bracket 42, two ends of the bracket shaft 4 are respectively fixed on the first bracket 41 and the second bracket 42, and the first bracket 41 and the second bracket 42 are symmetrically and fixedly installed on the second side frame 102. As shown in fig. 8 to 11, the second rolling swing arm 24 includes an upper connecting portion 241, a main body portion 242, and a lower connecting portion 243, wherein the upper connecting portion 241 and the lower connecting portion 243 are respectively fixedly connected to the main body portion 242, and in this embodiment, the upper connecting portion 241, the main body portion 242, and the lower connecting portion 243 are integrated. The main body part 242 is sleeved on the support shaft 4 and is rotatably connected with the support shaft 4, the upper end of the first rolling pull rod 23 is connected with the lower connecting part 243 of the second rolling swing arm 24 through a joint bearing, and the second rolling swing arm 24 is pulled to swing back and forth along the support shaft 4.

Further, one end of the second rolling pull rod 25 close to the second side frame 102 is connected to the upper connecting portion 241 of the second rolling swing arm 24 through a joint bearing, the other end of the second rolling pull rod 25 is connected to the rolling assembly 26 through a joint bearing, and the rolling assembly 26 is installed at the bottom of the lower pressing block 16. The lower pressing block 16 comprises a lower pressing block body and a slide rail 161, the lower pressing block body is fixedly connected with the slide rail 161, the slide rail 161 is located at the bottom of the lower pressing block body, and the slide rail 161 is transversely located between the first side frame 101 and the second side frame 102. The rolling assembly 26 includes a plurality of rollers 262 and an attachment plate 261, and the plurality of rollers 262 are arranged in a row on the attachment plate 261. The connecting plate 261 is matched with the slide rail 161, as shown in fig. 19, the connecting plate 261 can slide back and forth on the slide rail 161, so as to drive the roller 262 to roll on the surface of the book.

The main transmission shaft 3 simultaneously drives the lower groove pressing cams 11 and the rolling groove cams 21 which are positioned at the two ends of the main transmission shaft to rotate, when the main transmission shaft 3 drives the lower groove pressing cams 11 to the stroke highest point, the rolling groove cams 21 are positioned at the stroke lowest points, and when the lower groove pressing cams 11 fall back from the highest points to the lowest points, the rolling groove cams 21 just rotate from the lowest points to the highest points. The push-down groove cam 11 and the rolling groove cam 21 rotate synchronously, and synchronously transmit the actions in turn, so that the push-down action of the push-down block 16 and the horizontal rolling action of the roller 262 are respectively realized.

In this embodiment, the pressing device further includes an auxiliary pressing mechanism, as shown in fig. 3, the auxiliary pressing mechanism includes a secondary transmission shaft 71, an auxiliary swing arm 72, and an auxiliary pull rod 73, the secondary transmission shaft 71 is transversely located between the first side frame 101 and the second side frame 102, and two ends of the secondary transmission shaft 71 are respectively rotatably mounted on the second pressing swing arm 14 and the auxiliary swing arm 72. The lower end of the auxiliary pull rod 73 is connected to the auxiliary swing arm 72 through a joint bearing, and the upper end of the auxiliary pull rod 73 is connected with the lower pressing block 16 through a joint bearing. The auxiliary pull rod 73 and the second push-down pull rod 15 are respectively connected to both ends of the lower pressing block 16, so that the lower pressing block 16 can rise and fall more stably.

In this embodiment, as shown in fig. 2 and 3, a first slide way 51 is disposed on the first side frame 101, a second slide way 52 is correspondingly disposed on the second side frame 102, the lower pressing block 16 makes a reciprocating motion in a vertical direction along the first slide way 51 and the second slide way 52 to ensure an accurate pressing position of the lower pressing block, and the second rolling pull rod 25 passes through the second slide way 52 and can move in the second slide way in a horizontal direction. When the second lower pressing pull rod 15 and the auxiliary pull rod are pulled, the lower pressing block 16 moves downwards, and then the rolling assembly 26 installed at the bottom of the lower pressing block 16 is driven to move downwards integrally until the rolling assembly is pressed on the surface of the book, and then the connecting plate 261 in the rolling assembly 26 slides along the horizontal direction of the lower pressing block 16 through the pulling of the second rolling pull rod 25, so that the arranged rollers 262 roll on the surface of the book, and the book is rolled and flattened.

In other embodiments, the movement of the lower pressing block in the pressing mechanism can be realized by a pneumatic assembly or a hydraulic manner, and the movement of the roller in the rolling mechanism can also be realized by a pneumatic assembly or a hydraulic manner. Specifically, the main transmission shaft, the lower grooved cam, the first lower swing arm, the second lower swing arm and the second lower pull rod may be replaced by an air pressure assembly or a hydraulic mechanism, and the rolled grooved cam, the first rolled swing arm, the first rolled pull rod, the second rolled swing arm and the second rolled pull rod may be replaced by an air pressure or hydraulic mechanism. The pneumatic or hydraulic mechanism is arranged on the frame, and the pneumatic assembly or hydraulic mechanism is connected with the lower pressing block and the rolling assembly so as to realize the pressing of the lower pressing block 16 and the rolling movement of the rolling assembly.

A method for flattening a book or a paper stack can adopt a method of firstly pressing down and then rolling flat, namely, the lower pressing block 16 is firstly pressed on the book vertically and downwards, and then the surface of the book is rolled in the horizontal direction through a roller 262. The method comprises the following steps: the driving motor drives the main transmission shaft 3 to rotate under the control of the control system, the main transmission shaft 3 drives the lower groove pressing cam 11 and the rolling groove cam 21 to rotate, and then the lower groove pressing cam 11 and the rolling groove cam 21 drive the first lower pressing swing arm 12 and the first rolling swing arm 22 to swing respectively.

A lower pressing groove cam 11 in the lower pressing mechanism rotates to transmit the motion to a lower pressing block 16 through a first lower pressing swing arm 12, a first lower pressing pull rod 13, a second lower pressing swing arm 14 and a second lower pressing pull rod 15 in sequence, so that the lower pressing block 16 vertically moves downwards, and a rolling assembly arranged at the lower part of the lower pressing block is pressed on the book pad; and a rolling groove cam 21 in the rolling mechanism rotates and transmits the motion to a second rolling pull rod 25 through a first rolling swing arm 22, a first rolling pull rod 23 and a second rolling swing arm 24 in sequence, and the second rolling pull rod 25 pulls a roller 262 in the sliding assembly to roll left and right to flatten the book.

The above-described embodiments are intended to illustrate rather than to limit the invention, and any changes and alterations made without inventive step within the spirit and scope of the claims are intended to fall within the scope of the invention.