A sleeve inserting machine capable of page turning and a turning and inserting method thereof
By introducing a flipping mechanism and a locking knob adjustment system into the collating and inserting machine, the problem of not being able to insert pages with the long side while the short side is glued has been solved, enabling smooth page flipping and insertion, and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANTONG SANJING MACHINERY
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-01
AI Technical Summary
Existing collating and inserting machines cannot meet the need for inserting long-side pages into books with short-side glued pages, causing pages to tear easily or fail to insert smoothly during the flipping process.
A book-folding and inserting machine capable of flipping pages was designed. It is equipped with a flipping mechanism that picks up the short side of the page through a paper-gripping mechanism and flips it to insert the long side. The position and angle of the flipping mechanism can be adjusted by multiple locking knobs and adjusting knobs to adapt to different production needs.
It enables the flipping of short-side glued pages to meet the requirements of long-side insertion, avoids page tearing, adapts to various production scenarios, and improves insertion efficiency and quality.
Smart Images
Figure CN121948199A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of collating and inserting machines, specifically to a collating and inserting machine capable of flipping book pages and its flipping and inserting method. Background Technology
[0002] A collating inserter is a device mainly used for inserting pages or book blocks into a book. A collating inserter typically includes a frame, two book-laying tables mounted on the frame, a paper-feeding mechanism, a paper feeding mechanism, a pressing mechanism, and a book-collecting mechanism. During operation, the paper to be inserted is placed on the book-laying tables. The paper-feeding mechanism feeds the pages from the two book-laying tables to the paper feeding mechanism. After the page from the next book-laying table is lowered, it is inserted into the page from the previous book-laying table. The two pages are aligned and then sent by the paper feeding mechanism to the pressing mechanism to press the pages together for subsequent book collection. The inserted pages are then sent to the book-collecting mechanism for arrangement and conveying.
[0003] However, commonly used collating and inserting machines have limitations in inserting pages. The paper-picking and page-dropping mechanism can usually only pick up one sheet of paper. In some production scenarios with special requirements, it cannot meet the normal paper-picking and page-dropping function. For example, if two pages that have been glued along their short sides need to be inserted along the long side with other pages, and the two pages with their short sides glued are placed horizontally, only one page can be picked up, not both pages at the same time. This can cause the glued pages to tear, failing to meet the paper-picking and page-dropping requirements. Therefore, the glued pages must be placed vertically so that the paper-picking and page-dropping mechanism picks up the glued short side. This allows both glued pages to be picked up at the same time, meeting the paper-picking and page-dropping requirements. However, picking up the short side will cause the glued pages to fall onto the paper feed mechanism and will not be able to be inserted along the long side. Therefore, the pages need to be flipped during the paper-picking and page-dropping process. Summary of the Invention
[0004] To address the aforementioned problems, this invention provides a book-folding and inserting machine capable of flipping pages and a method for doing so, thereby solving the problem in the prior art where book-folding and inserting machines cannot accommodate the insertion of pages with short sides glued together on the long side.
[0005] To achieve the above objectives, the present invention provides a book-folding and inserting machine capable of flipping pages, comprising a book-folding and inserting machine body, a paper feeding mechanism, a pressing mechanism, a book collecting mechanism, and two sets of matching book placing platforms, paper-picking and page-dropping mechanisms, and a flipping mechanism. The paper feeding mechanism is located on the front side of the book-folding and inserting machine body, the pressing mechanism is installed on one side of the book-folding and inserting machine body and docks with the end of the paper feeding mechanism, the book collecting mechanism is located on one side of the pressing mechanism, the book placing platform is located on the top of the book-folding and inserting machine body, and the paper-picking and page-dropping mechanism is located below the book placing platform and is used to pick up the pages in the book placing platform.
[0006] The book stand is provided with mounting seats on both sides, and a connecting rod is connected between the two mounting seats. A fixed seat is provided on the connecting rod, and the flipping mechanism and guide wheel seat are installed on the fixed seat. A set of paper guide wheels that cooperate with the paper gripping and page dropping mechanism are installed on the guide wheel seat, and the flipping mechanism is located on the outside of the guide wheel seat.
[0007] The flipping mechanism includes a connecting block, an upper extension arm, a lower extension arm, and several limiting strips. The connecting block is connected to the fixed base. The upper extension arm passes through the connecting block. The end of the upper extension arm away from the connecting block is connected to one end of the lower extension arm by bolts. A lower sliding block and an upper sliding block are slidably arranged on the lower extension arm. An installation rod is slidably inserted in the lower sliding block. Several sliding seats are slidably arranged on the installation rod. Several limiting strips are respectively installed on several sliding seats. Swing rods are movably connected to both sides of the upper sliding block. A paper pressing wheel is installed at the end of the swing rod away from the upper sliding block. A tension spring is connected between the swing rod and the upper sliding block.
[0008] The plurality of limiting strips include a rotation limiting strip and a plurality of protective limiting strips. The rotation limiting strip is shorter than the protective limiting strip. The rotation limiting strip and the plurality of protective limiting strips are arranged sequentially on the mounting rod. The rotation limiting strip is installed at one end of the mounting rod. The end of the rotation limiting strip away from the mounting rod is inclined at an angle of 25° to 35°. The end of the rotation limiting strip is bent toward the body of the collating machine and fits against the surface of the collating machine body. A space is left between the plurality of protective limiting strips and the collating machine body for the pages to pass through.
[0009] Furthermore, a locking knob is provided on the lower sliding block, which cooperates with the lower extension arm to lock the lower sliding block and the lower extension arm.
[0010] Furthermore, a second locking knob is provided on the lower sliding block, which cooperates with the mounting rod to lock the lower sliding block and the mounting rod.
[0011] Furthermore, the upper sliding block is provided with a locking knob four, which cooperates with the lower extension arm to lock the upper sliding block and the lower extension arm.
[0012] Furthermore, the sliding seat is provided with a locking knob five, which cooperates with the mounting rod to lock the sliding seat and the mounting rod.
[0013] Furthermore, each of the rotation limiting strip and the plurality of protective limiting strips is provided with an adjusting pressure plate, and the adjusting pressure plate and the ends of the rotation limiting strip or the protective limiting strip are stacked and fixed on the sliding seat.
[0014] Furthermore, each of the adjusting pressure plates is provided with an adjusting knob at the other end. The adjusting knob cooperates with the rotation limit strip and the protective limit strip to adjust the bending angle of the rotation limit strip and the protective limit strip.
[0015] Furthermore, an adjustment knob two is provided at the lower part of the upper extension arm. The adjustment knob two passes through the upper extension arm and abuts against the guide wheel seat, and is used to support the upper extension arm and adjust the distance between the upper extension arm and the guide wheel seat.
[0016] Furthermore, the connecting block is provided with a locking knob three, which is used to lock the connecting block and the upper extension arm.
[0017] A method for flipping and inserting pages in a book-folding and inserting machine, which uses the aforementioned book-folding and inserting machine to flip and insert pages, specifically includes the following steps:
[0018] S1. Install the flipping mechanism on the fixed base on the front side of the book placement table. Adjust the flipping mechanism according to the production requirements. Adjust the upper extension arm and lock it with locking knob three. Rotate adjusting knob two to provide stable support for the upper extension arm. Adjust the angle of the lower extension arm and lock it to the upper extension arm with bolts. Adjust the upper sliding block and tighten it with a tension spring to press the paper pressing wheel onto the transmission belt of the paper gripping and page lowering mechanism. Adjust the position of the lower sliding block and the mounting rod and lock them with locking knob one and locking knob two respectively. Install the rotation limit strip and the protective limit strip according to the flipping direction of the book pages. Adjust the book pages to flip counterclockwise or clockwise. Adjust the sliding seat and lock it with locking knob five. Rotate adjusting knob one to adjust the bending angle of the rotation limit strip and the protective limit strip so that the end of the rotation limit strip is in contact with the surface of the collating machine body and that there is space between the protective limit strip and the surface of the collating machine body for the book pages to pass through smoothly.
[0019] S2. Place the pages with short sides glued together in the book-laying table equipped with a flipping mechanism, and place the pages with long sides glued together on another book-laying table. The pages with long sides glued together are picked up by the paper-gripping and page-dropping mechanism on one side and sent to the paper-feeding mechanism for transport. The pages with short sides glued together are picked up by the paper-gripping and page-dropping mechanism on the short side and guided by the guide roller and the pressure roller. The pages with short sides glued together are transported vertically downwards. When one corner of the falling page contacts the inclined edge of the lower end of the rotation limit strip, the page deflects and rotates to the horizontal position to continue falling. After the pages with short sides glued together fall, they are inserted one by one with the pages with long sides glued together. The pages are then sent to the book-collecting mechanism for sorting and recycling by the pressing mechanism.
[0020] The beneficial effects of this invention are:
[0021] In this invention, a flipping mechanism is set up to flip the two or more glued pages that the paper-picking and page-dropping mechanism picks up by the short side, so that the pages can be inserted by the long side, thus meeting the requirements of production work.
[0022] In this invention, the flipping mechanism is equipped with multiple locking knobs and adjusting knobs. By adjusting the position or bending angle of the upper extension arm, lower extension arm, and limit bar through the locking knobs and adjusting knobs, the flipping mechanism can be conveniently adjusted to meet different production needs. Attached Figure Description
[0023] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of the collating and inserting machine (only the single-sided paper gripping and flipping mechanism is shown).
[0025] Figure 2 This is a schematic diagram of the flipping mechanism.
[0026] The components include: 1-Body of the collating and inserting machine; 2-Paper feeding mechanism; 3-Pressing mechanism; 4-Book receiving mechanism; 5-Book placing table; 6-Paper gripping and unloading mechanism; 7-Flipping mechanism; 701-Connecting block; 702-Upper extension arm; 703-Lower extension arm; 704-Limiting strip; 7041-Rotation limit strip; 7042-Protective limit strip; 705-Lower sliding block; 706-Mounting rod; 707-Locking knob one. 708-Locking knob two, 709-Adjusting pressure plate, 710-Adjusting knob one, 711-Adjusting knob two, 712-Locking knob three, 713-Upper sliding block, 714-Swing rod, 715-Paper pressing wheel, 716-Tension spring, 717-Locking knob four, 718-Sliding seat, 719-Locking knob five, 8-Mounting seat, 9-Connecting rod, 10-Sliding seat, 11-Guide wheel seat, 12-Guide wheel. Detailed Implementation
[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0028] In one specific embodiment of the present invention, such as Figure 1 As shown, a book-folding and inserting machine capable of flipping book pages includes a book-folding and inserting machine body 1, a paper feeding mechanism 2, a pressing mechanism 3, a book collecting mechanism 4, and two sets of matching book placing tables 5, paper-picking and page-dropping mechanisms 6, and a flipping mechanism 7. The paper feeding mechanism 2 is located on the front side of the book-folding and inserting machine body 1, the pressing mechanism 3 is installed on one side of the book-folding and inserting machine body 1 and docks with the end of the paper feeding mechanism 2, the book collecting mechanism 4 is located on one side of the pressing mechanism 3, the book placing table 5 is located on the top of the book-folding and inserting machine body 1, and the paper-picking and page-dropping mechanism 6 is located below the book placing table 5 and is used to pick up the book pages in the book placing table 5.
[0029] The book stand 5 is provided with mounting bases 8 on both sides, and a connecting rod 9 is connected between the two mounting bases 8. A fixed base 10 is provided on the connecting rod 9. A flipping mechanism 7 and a guide wheel seat 11 are installed on the fixed base 10. A set of paper guide wheels 12 that cooperate with the paper gripping and page dropping mechanism 6 are installed on the guide wheel seat 11, and the flipping mechanism 7 is located on the outside of the guide wheel seat 11.
[0030] like Figure 2As shown, the flipping mechanism 7 includes a connecting block 701, an upper extension arm 702, a lower extension arm 703, and several limiting strips 704. The connecting block 701 is connected to the fixed base 10. The upper extension arm 702 passes through the connecting block 701. The end of the upper extension arm 702 away from the connecting block 701 is connected to one end of the lower extension arm 703 by bolts. A lower sliding block 705 and an upper sliding block 713 are slidably arranged on the lower extension arm 703. A mounting rod 706 is slidably passed through the lower sliding block 705. A mounting rod is slidably arranged on the mounting rod. Several sliding seats 718 and several limiting strips 704 are respectively installed on several sliding seats 718; swing rods 714 are movably connected to both sides of the upper sliding block 713, and a paper pressing wheel 715 is installed at the end of the swing rod 714 away from the upper sliding block 713; a tension spring 716 is connected between the swing rod 714 and the upper sliding block 713; the upper extension arm 702 and the lower extension arm 703 are made by milling flat round shafts, so that the upper sliding block 713 and the lower sliding block 705 can be slightly rotated and adjusted, and at the same time, it is easy to lock.
[0031] The plurality of limiting strips 704 include a rotation limiting strip 7041 and a plurality of protective limiting strips 7042. The rotation limiting strip 7041 is shorter than the protective limiting strips 7042. The rotation limiting strip 7041 and the plurality of protective limiting strips 7042 are arranged sequentially on the mounting rod 706. The rotation limiting strip 7041 is installed at one end of the mounting rod 706. The end of the rotation limiting strip 7041 away from the mounting rod 706 is inclined at an angle of 25 to 35°. The end of the rotation limiting strip 7041 is bent toward the body 1 of the collating machine and fits against the surface of the collating machine body 1. A space is left between the plurality of protective limiting strips 7042 and the collating machine body 1 for the pages to pass through.
[0032] The lower sliding block 705 is provided with a locking knob 707, which cooperates with the lower extension arm 703 to lock the lower sliding block 705 and the lower extension arm 703.
[0033] The lower sliding block 705 is provided with a locking knob 708, which cooperates with the mounting rod 706 to lock the lower sliding block 705 and the mounting rod 706.
[0034] The upper sliding block 713 is provided with a locking knob 717, which cooperates with the lower extension arm 703 to lock the upper sliding block 713 and the lower extension arm 703.
[0035] The sliding seat 718 is provided with a locking knob 719, which cooperates with the mounting rod 706 to lock the sliding seat 718 and the mounting rod 706.
[0036] Adjusting pressure plates 709 are respectively provided on the rotation limit bar 7041 and several protective limit bars 7042. The adjusting pressure plates 709 and the ends of the rotation limit bar 7041 or protective limit bar 7042 are stacked and fixed on the sliding seat 718.
[0037] The other end of the adjusting pressure plate 709 is provided with an adjusting knob 710. The adjusting knob 710 cooperates with the rotation limit bar 7041 and the protection limit bar 7042 to adjust the bending angle of the rotation limit bar 7041 and the protection limit bar 7042.
[0038] The lower part of the upper extension arm 702 is provided with an adjustment knob 711. The adjustment knob 711 passes through the upper extension arm 702 and abuts against the guide wheel seat 11. It is used to support the upper extension arm 702 and adjust the distance between the upper extension arm 702 and the guide wheel seat 11.
[0039] The connecting block 701 is provided with a locking knob 712, which is used to lock the connecting block 701 and the upper extension arm 702.
[0040] A method for flipping and inserting pages in a book-folding and inserting machine, which uses the aforementioned book-folding and inserting machine to flip and insert pages, specifically includes the following steps:
[0041] S1. Install the flipping mechanism 7 on the fixed base 10 on the front side of the book-laying table 5. Adjust the flipping mechanism 7 according to the production requirements. Adjust the upper extension arm 702 and lock it with the locking knob three 712. Rotate the adjusting knob two 711 to provide stable support for the upper extension arm 702. Adjust the angle of the lower extension arm 703 and lock it to the upper extension arm 702 with bolts. Adjust the upper sliding block 713 and tighten it with the tension spring 716 to press the paper pressing wheel 715 onto the transmission belt of the paper-gripping and page-dropping mechanism 6. Adjust the position of the lower sliding block 705 and the mounting rod 706, and use the locking knob one 707 and the locking knob two 712 to lock it to the upper extension arm 702. Lock the knob 708. Install the rotation limit strip 7041 and the protective limit strip 7042 according to the flipping direction of the book pages. By changing the installation position of the rotation limit strip 7041, adjust the book pages to flip counterclockwise or clockwise according to production needs. Adjust the sliding seat 718 and lock it through the locking knob 719. Rotate the adjusting knob 710 to adjust the bending angle of the rotation limit strip 7041 and the protective limit strip 7042 so that the end of the rotation limit strip 7041 fits against the surface of the collating machine body 1, and leaves space between the protective limit strip 7042 and the surface of the collating machine body 1 for the book pages to pass through smoothly.
[0042] S2. Place the short-side glued pages into the book-laying table 5 equipped with the flipping mechanism 7, and place the long-side glued pages into another book-laying table 5. The long-side glued pages are picked up by the paper-picking and unloading mechanism 6 and sent to the paper-feeding mechanism 2 for normal paper feeding. The short-side glued pages are picked up by the paper-picking and unloading mechanism 6 and guided by the guide roller 12 and the pressure roller 715. The short-side glued pages are sent vertically downward. When one corner of the falling page contacts the inclined edge of the lower end of the rotation limit bar 7041, the page deflects and rotates to the horizontal position to continue falling. After the short-side glued pages fall, they are inserted one by one with the long-side glued pages. After passing through the pressing mechanism 3, they are sent to the book-collecting mechanism 4 for sorting and recycling.
[0043] The preferred and optional technical means disclosed in this invention, except as otherwise specified and as further defined as one preferred or alternative technical means being another, can be arbitrarily combined to form several different technical solutions. Therefore, equivalent variations made according to the claims are still within the scope of this invention.
Claims
1. A book-turning and inserting machine, characterized in that, The machine includes a collating machine body (1), a paper feeding mechanism (2), a pressing mechanism (3), a book receiving mechanism (4), and two sets of matching book placement tables (5), a paper picking and unloading mechanism (6), and a flipping mechanism (7). The paper feeding mechanism (2) is located on the front side of the collating machine body (1). The pressing mechanism (3) is installed on one side of the collating machine body (1) and is connected to the end of the paper feeding mechanism (2). The book receiving mechanism (4) is located on one side of the pressing mechanism (3). The book placement table (5) is located on the top of the collating machine body (1). The paper picking and unloading mechanism (6) is located below the book placement table (5) and is used to pick up the pages in the book placement table (5). The book stand (5) is provided with mounting seats (8) on both sides, and a connecting rod (9) is connected between the two mounting seats (8). A fixed seat (10) is provided on the connecting rod (9). The flipping mechanism (7) and the guide wheel seat (11) are installed on the fixed seat (10). A set of paper guide wheels (12) that cooperate with the paper gripping and page dropping mechanism (6) are installed on the guide wheel seat (11). The flipping mechanism (7) is located on the outside of the guide wheel seat (11). The flipping mechanism (7) includes a connecting block (701), an upper extension arm (702), a lower extension arm (703), and several limiting strips (704). The connecting block (701) is connected to the fixed base (10). The upper extension arm (702) passes through the connecting block (701). One end of the upper extension arm (702) away from the connecting block (701) is bolted to one end of the lower extension arm (703). A lower sliding block (705) and an upper sliding block (713) are slidably arranged on the lower extension arm (703). An installation rod (706) is slidably inserted inside the lower sliding block (705), and a plurality of sliding seats (718) are slidably disposed on the installation rod. A plurality of limiting strips (704) are respectively installed on the plurality of sliding seats (718). A swing rod (714) is movably connected to both sides of the upper sliding block (713). A paper pressing wheel (715) is installed at the end of the swing rod (714) away from the upper sliding block (713). A tension spring (716) is connected between the swing rod (714) and the upper sliding block (713). The plurality of limiting strips (704) include a rotation limiting strip (7041) and a plurality of protective limiting strips (7042). The rotation limiting strip (7041) is shorter than the protective limiting strip (7042). The rotation limiting strip (7041) and the plurality of protective limiting strips (7042) are arranged sequentially on the mounting rod (706). The rotation limiting strip (7041) is installed at one end of the mounting rod (706). The end of the rotation limiting strip (7041) away from the mounting rod (706) is inclined at an angle of 25 to 35°. The end of the rotation limiting strip (7041) is bent toward the body of the collating machine (1) and fits against the surface of the body of the collating machine (1). A space is left between the plurality of protective limiting strips (7042) and the body of the collating machine (1) for the pages to pass through.
2. The collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The lower sliding block (705) is provided with a locking knob (707), which cooperates with the lower extension arm (703) to lock the lower sliding block (705) and the lower extension arm (703).
3. The collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The lower sliding block (705) is provided with a locking knob (708), which cooperates with the mounting rod (706) to lock the lower sliding block (705) and the mounting rod (706).
4. The collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The upper sliding block (713) is provided with a locking knob four (717), which cooperates with the lower extension arm (703) to lock the upper sliding block (713) and the lower extension arm (703).
5. A collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The sliding seat (718) is provided with a locking knob five (719), which cooperates with the mounting rod (706) to lock the sliding seat (718) and the mounting rod (706).
6. The collating and inserting machine capable of flipping pages according to claim 1, characterized in that, Adjusting pressure plates (709) are respectively provided on the rotation limiting strip (7041) and the plurality of protective limiting strips (7042). The ends of the adjusting pressure plates (709) and the rotation limiting strips (7041) or the protective limiting strips (7042) are stacked and fixed on the sliding seat (718).
7. A collating and inserting machine capable of flipping pages according to claim 6, characterized in that, Each of the adjusting pressure plates (709) is provided with an adjusting knob (710) at the other end. The adjusting knob (710) cooperates with the rotation limit bar (7041) and the protection limit bar (7042) to adjust the bending angle of the rotation limit bar (7041) and the protection limit bar (7042).
8. A collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The lower part of the upper extension arm (702) is provided with an adjustment knob (711), which passes through the upper extension arm (702) and abuts against the guide wheel seat (11) to support the upper extension arm (702) and adjust the distance between the upper extension arm (702) and the guide wheel seat (11).
9. A collating and inserting machine capable of flipping pages according to claim 1, characterized in that, The connecting block (701) is provided with a locking knob three (712), which is used to lock the connecting block (701) and the upper extension arm (702).
10. A method for flipping and inserting pages in a collating machine capable of page flipping, wherein the collating machine described in any one of claims 1 to 9 is used to flip and insert the pages, characterized in that, Specifically, the steps include the following: S1. Install the flipping mechanism on the fixed base on the front side of the book placement table. Adjust the flipping mechanism according to the production requirements. Adjust the upper extension arm and lock it with locking knob three. Rotate adjusting knob two to provide stable support for the upper extension arm. Adjust the angle of the lower extension arm and lock it to the upper extension arm with bolts. Adjust the upper sliding block and tighten it with a tension spring to press the paper pressing wheel onto the transmission belt of the paper gripping and page lowering mechanism. Adjust the position of the lower sliding block and the mounting rod and lock them with locking knob one and locking knob two respectively. Install the rotation limit strip and the protective limit strip according to the flipping direction of the book pages. Adjust the book pages to flip counterclockwise or clockwise. Adjust the sliding seat and lock it with locking knob five. Rotate adjusting knob one to adjust the bending angle of the rotation limit strip and the protective limit strip so that the end of the rotation limit strip is in contact with the surface of the collating machine body and that there is space between the protective limit strip and the surface of the collating machine body for the book pages to pass through smoothly. S2. Place the pages with short sides glued together in the book-laying table equipped with a flipping mechanism, and place the pages with long sides glued together on another book-laying table. The pages with long sides glued together are picked up by the paper-gripping and page-dropping mechanism on one side and sent to the paper-feeding mechanism for transport. The pages with short sides glued together are picked up by the paper-gripping and page-dropping mechanism on the short side and guided by the guide roller and the pressure roller. The pages with short sides glued together are transported vertically downwards. When one corner of the falling page contacts the inclined edge of the lower end of the rotation limit strip, the page deflects and rotates to the horizontal position to continue falling. After the pages with short sides glued together fall, they are inserted one by one with the pages with long sides glued together. The pages are then sent to the book-collecting mechanism for sorting and recycling by the pressing mechanism.