Pre-pressing mechanism

Abstract

The utility model relates to the field of book production, in particular to a pre-pressing mechanism. The page pushing device comprises a rack, a page pushing assembly and a pre-pressing assembly, the page pushing assembly comprises a first guide rail and a pushing flag, the first guide rail is arranged on the rack, the pushing flag is in sliding connection with the first guide rail so as to push pages placed on the first guide rail to move along the first guide rail, the pre-pressing assembly is arranged on the rack, and the pre-pressing assembly is arranged on the rack. The pre-pressing assembly is used for pressing the book pages. The pre-pressing assembly exerts proper pressure on the book pages, all layers of materials of the book pages are tightly attached, air is exhausted, elastic rebound and displacement of the materials are restrained, and the book pages are in a relatively stable and well-attached state before entering a final pressing station.

Description

Technical Field

[0001] This utility model relates to the field of book production, and in particular to a pre-compression mechanism. Background Technology

[0002] In book manufacturing and other lamination processes, the lamination effect during the initial bonding stage has a significant impact on the final product quality. If the layers of material are not evenly bonded during lamination, problems such as air bubbles, wrinkles, or areas of weak adhesion can easily occur, affecting the book's appearance and durability. In traditional flat pressing methods, the material typically enters the final pressing station directly after the glue application process. Air may become trapped between the glue and the substrate interface, forming an insulating layer that hinders subsequent curing efficiency. The material may also become misaligned due to uneven glue flow or tension, which is difficult to completely correct at the final pressing station. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide at least one beneficial option or create conditions to solve one or more technical problems existing in the prior art.

[0004] The solution to the technical problem of this utility model is: a pre-pressing mechanism, which includes a frame, a page-pushing assembly and a pre-pressing assembly. The page-pushing assembly includes a first guide rail and a push flag. The first guide rail is disposed on the frame, and the push flag is slidably connected to the first guide rail to push the pages placed on the first guide rail to move along the first guide rail. The pre-pressing assembly is disposed on the frame and is used to press the pages.

[0005] The beneficial effects of this invention are as follows: The first guide rail is set on the frame, supporting and guiding the pages to move, preventing them from deviating from the predetermined path and ensuring the continuity of the entire pre-pressing process; the pusher flag is slidably connected to the first guide rail, and slides along the guide rail under the action of a driving device such as a motor, allowing the pages to pass through the pre-pressing mechanism page by page in an orderly manner, entering the pre-pressing and subsequent related processes, ensuring a stable and orderly production rhythm; the pre-pressing component applies appropriate pressure to the pages, tightly bonding each layer of material, expelling air, and suppressing the elastic rebound and displacement of the material, so that the pages are in a relatively stable and well-bonded state before entering the final pressing station. Pre-pressing eliminates the elastic rebound or displacement of the material after gluing, providing a stable substrate for subsequent final pressing and reducing the final pressing pressure requirement.

[0006] As a further improvement to the above technical solution, the pre-compression assembly includes a pre-compression frame, a pressure plate, a drive motor, and at least one linear bearing assembly. The pre-compression frame is mounted on the machine frame, the drive motor is mounted on the pre-compression frame, a lifting groove is provided inside the pre-compression frame, the pressure plate is mounted inside the lifting groove, the top of the pressure plate is slidably connected to the pre-compression frame through at least one linear bearing assembly, and the drive motor is drively connected to the pressure plate.

[0007] As a further improvement to the above technical solution, the pressure plate includes a connecting plate and a plurality of pressure blocks. The connecting plate is provided with a second guide rail. The pressure blocks are slidably connected to the second guide rail. All the pressure blocks are detachably mounted on the connecting plate, so that the pressure blocks are relatively fixed to the second guide rail.

[0008] As a further improvement to the above technical solution, the connecting plate is provided with a guide groove that is perpendicular to the first guide rail. The guide groove is the second guide rail, and all the pressure blocks are fixed to the guide groove by bolts.

[0009] As a further improvement to the above technical solution, the pre-compression mechanism also includes multiple spring pieces, all of which are arranged sequentially on the second limiting member. The spring pieces are fixed to the second limiting member by screws, and the spring pieces have a tendency to push the pages toward the first limiting member.

[0010] As a further improvement to the above technical solution, the pre-compression mechanism further includes a first bushing, a second bushing, and a limiting shaft perpendicular to the first guide rail. The first bushing is fixedly connected to the first limiting member, and the second bushing is fixedly connected to the second limiting member. The limiting shaft is disposed on the frame and can rotate relative to the frame. The limiting shaft is provided with a first threaded section and a second threaded section, and the threads of the first threaded section and the second threaded section have opposite directions. The first bushing is threadedly connected to the first threaded section, and the second bushing is threadedly connected to the second threaded section.

[0011] As a further improvement to the above technical solution, the pre-compression mechanism also includes a transmission shaft mounted on the frame, a first bevel gear mounted on the transmission shaft, the transmission shaft and the first bevel gear being coaxially driven together, a second bevel gear mounted on the limiting shaft, the limiting shaft and the second bevel gear being coaxially driven together, and the first bevel gear and the second bevel gear meshing with each other.

[0012] As a further improvement to the above technical solution, the limiting shaft includes a first rotating shaft, a second rotating shaft, and a coupling. The coupling is used to connect the first rotating shaft and the second rotating shaft, so that the first rotating shaft and the second rotating shaft can be driven coaxially.

[0013] As a further improvement to the above technical solution, the pre-compression mechanism further includes an auxiliary shaft, which is disposed on the frame and is arranged parallel to the limiting shaft. The first limiting member is provided with a first slot, and the second limiting member is provided with a second slot. The first slot engages with the auxiliary shaft, and the second slot engages with the auxiliary shaft. The auxiliary shaft is used to assist the first limiting member and the second limiting member to move smoothly along the axial direction of the limiting shaft. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the pre-compression component according to one embodiment of the present invention;

[0016] Figure 3 This is an assembly diagram of the first limiting member, the second limiting member, and the limiting shaft according to one embodiment of the present invention.

[0017] In the attached diagram: 100-frame, 200-push-page assembly, 210-first guide rail, 220-push flag, 310-first limiting component, 311-first slot, 320-second limiting component, 321-second slot, 330-limiting shaft, 331-second bevel gear, 332-first rotating shaft, 333-second rotating shaft, 334-coupling, 340-spring, 350-first bushing, 360-second bushing, 370-drive shaft, 371-first bevel gear, 380-auxiliary shaft, 400-pre-pressure assembly, 410-pre-pressure frame, 411-lifting groove, 420-pressure plate, 421-connecting plate, 4221-second guide rail, 4222-guide groove, 422-pressure block, 430-drive motor, 440-linear bearing assembly. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of this utility model, not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0020] In book manufacturing and other lamination processes, the lamination effect during the initial bonding stage has a significant impact on the final product quality. If the layers of material are not evenly bonded during lamination, problems such as air bubbles, wrinkles, or areas of weak adhesion can easily occur, affecting the book's appearance and durability. In traditional flat pressing methods, the material typically enters the final pressing station directly after the glue application process. Air may become trapped between the glue and the substrate interface, forming an insulating layer that hinders subsequent curing efficiency. The material may also become misaligned due to uneven glue flow or tension, which is difficult to completely correct at the final pressing station.

[0021] Therefore, this utility model proposes a pre-compression mechanism, referring to... Figures 1-3 It includes a frame 100, a page pusher assembly 200, and a pre-pressing assembly 400. The page pusher assembly 200 includes a first guide rail 210 and a pusher flag 220. The first guide rail 210 is disposed on the frame 100, and the pusher flag 220 is slidably connected to the first guide rail 210 to push the pages placed on the first guide rail 210 to move along the first guide rail 210. The pre-pressing assembly 400 is disposed on the frame 100 and is used to press the pages.

[0022] The first guide rail 210 is mounted on the frame 100, supporting and guiding the pages to prevent them from deviating from the predetermined path, thus ensuring the continuity of the entire pre-pressing process. The pusher 220 is slidably connected to the first guide rail 210 and slides along the guide rail under the action of a drive device such as a motor, allowing the pages to pass through the pre-pressing mechanism page by page in an orderly manner, entering the pre-pressing and subsequent related processes, ensuring a stable and orderly production rhythm. The pre-pressing component 400 applies appropriate pressure to the pages, tightly bonding each layer of material, expelling air, and suppressing the elastic rebound and displacement of the material, ensuring the pages are in a relatively stable and well-bonded state before entering the final pressing station. Pre-pressing eliminates the elastic rebound or displacement of the material after gluing, providing a stable substrate for subsequent final pressing and reducing the final pressing pressure requirement.

[0023] During the book mounting process, after the pages pass through the glue application process, they enter the pre-pressing mechanism. The pusher flag 220 of the page pusher assembly 200 pushes the pages along the first guide rail 210. As the pages are pushed along the guide rail by the pusher flag 220, the positions of the first limiter 310 and the second limiter 320 are adjusted according to the actual size of the pages to ensure they are in contact with or maintain a suitable distance from the edges of the pages. When the pages move below the pre-pressing assembly 400, the pre-pressing assembly 400 presses the pages to achieve the purpose of pre-pressing. Afterward, the pages are conveyed to the subsequent final pressing station for the next step of the production process.

[0024] During the lifting and lowering process, the pressure plate 420 may deviate from a straight line due to friction, wear, or design defects, resulting in swaying or offset. Therefore, in one embodiment, the pre-pressing assembly 400 includes a pre-pressing frame 410, a pressure plate 420, a drive motor 430, and at least one linear bearing assembly 440. The pre-pressing frame 410 is mounted on the frame 100, the drive motor 430 is mounted on the pre-pressing frame 410, the pre-pressing frame 410 has a lifting groove 411, the pressure plate 420 is mounted in the lifting groove 411, the top of the pressure plate 420 is slidably connected to the pre-pressing frame 410 through at least one linear bearing assembly 440, and the drive motor 430 is drively connected to the pressure plate 420. The pressure plate 420 is slidably connected to the pre-pressure frame 410 via at least one linear bearing assembly 440. The linear bearing assembly 440 has high-precision guiding and supporting functions, which can ensure that the pressure plate 420 moves along a precise straight line during the lifting and lowering process, reduce the shaking and offset of the pressure plate 420 during the movement, enhance the stability of the pre-pressure assembly 400 structure, and enable the pressure plate 420 to apply pressure more evenly and stably when pressing the pages, thereby improving the pre-pressure effect.

[0025] During the pre-compression process, due to factors such as vibration and pressure changes, the pressure block 422 may easily shift, resulting in poor pre-compression effect and even damage to the pages or equipment. Therefore, in one embodiment, the pressure plate 420 includes a connecting plate 421 and multiple pressure blocks 422. The connecting plate 421 is provided with a second guide rail 4221, and the pressure blocks 422 are slidably connected to the second guide rail 4221. All the pressure blocks 422 are detachably mounted on the connecting plate 421, so that the pressure blocks 422 and the second guide rail 4221 are relatively fixed. The pressure plate 420 is composed of a connecting plate 421 and multiple pressure blocks 422, and the pressure blocks 422 are slidably connected to and relatively fixed to the second guide rail 4221 on the connecting plate 421. The position of each pressure block 422 can be flexibly adjusted according to the different sizes, shapes, and mounting requirements of the pages, thereby achieving targeted pressure on different parts of the pages, conforming to the actual mounting requirements of the pages, improving the pre-compression effect, and ensuring that each layer of material is tightly bonded in different positions.

[0026] During the production process, it may be necessary to apply targeted pressure to different parts of the book pages. Therefore, in one embodiment, the connecting plate 421 is provided with a guide groove 4222 that is perpendicular to the first guide rail 210. The guide groove 4222 serves as the second guide rail 4221, and all the pressure blocks 422 are fixed to the guide groove 4222 by bolts. The guide groove 4222 on the connecting plate 421, which is perpendicular to the first guide rail 210, serves as the second guide rail 4221, so that the pressure blocks 422 can move precisely in a direction perpendicular to the book page conveying direction. The pressure blocks 422 are fixed to the guide groove 4222 by bolts, ensuring that the pressure blocks 422 remain stable after being adjusted to the appropriate position and will not easily shift due to vibration, pressure changes, or other factors during the pre-pressing process.

[0027] During the book binding process, pages may experience slight positional shifts due to machine vibrations, material properties, or other factors. Therefore, in one embodiment, the pre-pressing mechanism further includes multiple spring clips 340, all of which are sequentially arranged on the second limiting member 320. The spring clips 340 are fixed to the second limiting member 320 by screws, and each spring clip 340 has a tendency to push the pages towards the first limiting member 310. When the pages enter the pre-pressing mechanism and are pushed forward by the page pusher assembly 200, the spring clips 340 actively apply a lateral pushing force to the pages, thereby ensuring the pages are better positioned centered between the first limiting member 310 and the second limiting member 320, improving the accuracy of the page's lateral positioning and preventing page skewing. During the book binding process, pages may experience slight positional shifts due to machine vibrations, material properties, or other factors. The continuous thrust applied by the spring 340 can keep the pages in a relatively stable lateral position at all times, effectively preventing the pages from falling out of the page space limit range, ensuring that the pages are always in an accurate and stable position throughout the entire conveying and pre-compression process, improving the pre-compression quality and the continuity of production.

[0028] If the limiting forces applied by the first limiting member 310 and the second limiting member 320 to both sides of the page are uneven, one side may be too tight and the other side too loose, affecting the stability of the page and potentially damaging it. Therefore, in one embodiment, the pre-pressing mechanism further includes a first bushing 350, a second bushing 360, and a limiting shaft 330 perpendicular to the first guide rail 210. The first bushing 350 is fixedly connected to the first limiting member 310, and the second bushing 360 is fixedly connected to the second limiting member 320. The limiting shaft 330 is mounted on the frame 100 and is rotatable relative to the frame 100. The limiting shaft 330 has a first threaded section and a second threaded section with opposite thread directions. The first bushing 350 is threadedly connected to the first threaded section, and the second bushing 360 is threadedly connected to the second threaded section. When the limiting shaft 330 is rotated, the first limiting member 310 and the second limiting member 320 can move synchronously towards or away from each other, and the distance between the first limiting member 310 and the second limiting member 320 can be adjusted very precisely to accommodate pages of different widths. The position adjustment of the limiting members is achieved by means of threaded transmission. The first limiting member 310 and the second limiting member 320 can always maintain a relatively symmetrical movement state, ensuring that the limiting force applied by the two to both sides of the page is uniform and balanced, so that the page can be stably and correctly positioned within the limited range of the page space in the lateral direction.

[0029] When fine-tuning of the position of the limiting component is required, manually operating the limiting shaft 330 may be difficult to achieve precise adjustment, affecting the accuracy and stability of the page's lateral limiting. Therefore, in one embodiment, the pre-pressing mechanism further includes a transmission shaft 370 mounted on the frame 100. The transmission shaft 370 is equipped with a first bevel gear 371, which is coaxially driven with the first bevel gear 371. The limiting shaft 330 is equipped with a second bevel gear 331, which is coaxially driven with the second bevel gear 331, and the first bevel gear 371 and the second bevel gear 331 mesh with each other. By setting up the transmission shaft 370 and configuring the first bevel gear 371 on it, which meshes with the second bevel gear 331 on the limiting shaft 330, coaxial transmission is achieved. This allows operation of the transmission shaft 370 from a position away from the limiting shaft 330, overcoming the previous limitation of having to directly rotate and adjust at the limiting shaft 330, thus improving the convenience and flexibility of operation.

[0030] After prolonged use, the limiting shaft 330 may experience wear, deformation, or other problems, requiring it to be removed from the equipment and replaced. Therefore, in one embodiment, the limiting shaft 330 includes a first rotating shaft 332, a second rotating shaft 333, and a coupling 334. The coupling 334 connects the first rotating shaft 332 and the second rotating shaft 333, enabling coaxial transmission between them. By designing the limiting shaft 330 as a structure consisting of a first rotating shaft 332, a second rotating shaft 333, and a coupling 334, when the first rotating shaft 332 or the second rotating shaft 333 malfunctions, the coupling 334 can be disconnected, allowing the faulty shaft to be removed individually for repair or replacement. This eliminates the need for large-scale disassembly of the entire limiting shaft 330 and its numerous connected components, reducing maintenance workload and difficulty. Furthermore, during installation, the process can be carried out step by step according to space requirements, avoiding the assembly difficulties that may occur with integrated limiting shaft 330 due to interference between components, thus improving installation efficiency.

[0031] The first limiting member 310 and the second limiting member 320 may wobble or deviate during movement due to uneven force or lack of stable guidance. Therefore, in one embodiment, the pre-compression mechanism further includes an auxiliary shaft 380, which is disposed on the frame 100 and parallel to the limiting shaft 330. The first limiting member 310 is provided with a first slot 311, and the second limiting member 320 is provided with a second slot 321. The first slot 311 engages with the auxiliary shaft 380, and the second slot 321 engages with the auxiliary shaft 380. The auxiliary shaft 380 is used to assist the first limiting member 310 and the second limiting member 320 in moving smoothly along the axial direction of the limiting shaft 330. The auxiliary shaft 380 and the limiting shaft 330 cooperate to form a dual-guided stable structure. The limiting shaft 330 focuses on driving the limiting component to move and bearing the main axial force through threaded transmission and other means, while the auxiliary shaft 380 focuses on assisting in maintaining the stability of the limiting component during movement. The two work together to further enhance the stability of the first limiting component 310 and the second limiting component 320 during the entire movement process, reducing problems such as unstable movement that may cause the pages to not be clamped properly or the positioning to be inaccurate.

[0032] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A pre-compression mechanism, characterized in that, include: Rack (100); A page pusher assembly (200) includes a first guide rail (210) and a pusher flag (220). The first guide rail (210) is disposed on the frame (100), and the pusher flag (220) is slidably connected to the first guide rail (210) to push the pages placed on the first guide rail (210) to move along the first guide rail (210). A pre-press assembly (400) is disposed on the frame (100) and is used to press the pages.

2. The pre-compression mechanism according to claim 1, characterized in that, The pre-compression assembly (400) includes a pre-compression frame (410), a pressure plate (420), a drive motor (430), and at least one linear bearing assembly (440). The pre-compression frame (410) is mounted on the frame (100), and the drive motor (430) is mounted on the pre-compression frame (410). The pre-compression frame (410) has a lifting groove (411) inside, and the pressure plate (420) is mounted inside the lifting groove (411). The top of the pressure plate (420) is slidably connected to the pre-compression frame (410) through at least one linear bearing assembly (440), and the drive motor (430) is drively connected to the pressure plate (420).

3. The pre-compression mechanism according to claim 2, characterized in that, The pressure plate (420) includes a connecting plate (421) and a plurality of pressure blocks (422). The connecting plate (421) is provided with a second guide rail (4221). The pressure blocks (422) are slidably connected to the second guide rail (4221). All the pressure blocks (422) are detachably installed on the connecting plate (421) so that the pressure blocks (422) are relatively fixed to the second guide rail (4221).

4. A pre-compression mechanism according to claim 3, characterized in that, The connecting plate (421) has a guide groove (4222) that is perpendicular to the first guide rail (210). The guide groove (4222) is the second guide rail (4221). All the pressure blocks (422) are fixed to the guide groove (4222) by bolts.

5. A pre-compression mechanism according to claim 3, characterized in that, The pre-compression mechanism further includes a first limiting member (310) and a second limiting member (320). The first limiting member (310) and the second limiting member (320) are disposed on the frame (100). The first limiting member (310), the second limiting member (320) and the first guide rail (210) enclose a page space to limit the lateral position of the page.

6. A pre-compression mechanism according to claim 5, characterized in that, The pre-compression mechanism also includes a plurality of spring pieces (340), all of which are arranged sequentially on the second limiting member (320). The spring pieces (340) are fixed to the second limiting member (320) by screws, and the spring pieces (340) have a tendency to push the pages toward the first limiting member (310).

7. A pre-compression mechanism according to claim 5, characterized in that, The preloading mechanism further includes a first bushing (350), a second bushing (360), and a limiting shaft (330) perpendicular to the first guide rail (210). The first bushing (350) is fixedly connected to the first limiting member (310), and the second bushing (360) is fixedly connected to the second limiting member (320). The limiting shaft (330) is disposed on the frame (100) and can rotate relative to the frame (100). The limiting shaft (330) is provided with a first threaded section and a second threaded section. The first threaded section and the second threaded section have opposite thread directions. The first bushing (350) is threadedly connected to the first threaded section, and the second bushing (360) is threadedly connected to the second threaded section.

8. A pre-compression mechanism according to claim 7, characterized in that, The preloading mechanism also includes a drive shaft (370) mounted on the frame (100), a first bevel gear (371) mounted on the drive shaft (370), the drive shaft (370) and the first bevel gear (371) being coaxially driven together, a second bevel gear (331) mounted on the limiting shaft (330), the limiting shaft (330) and the second bevel gear (331) being coaxially driven together, and the first bevel gear (371) and the second bevel gear (331) meshing with each other.

9. A pre-compression mechanism according to claim 7, characterized in that, The limiting shaft (330) includes a first rotating shaft (332), a second rotating shaft (333), and a coupling (334). The coupling (334) is used to connect the first rotating shaft (332) and the second rotating shaft (333) so that the first rotating shaft (332) and the second rotating shaft (333) can be driven coaxially.

10. A pre-compression mechanism according to claim 7, characterized in that, The pre-compression mechanism further includes an auxiliary shaft (380), which is mounted on the frame (100). The auxiliary shaft (380) is parallel to the limiting shaft (330). The first limiting member (310) is provided with a first slot (311), and the second limiting member (320) is provided with a second slot (321). The first slot (311) engages with the auxiliary shaft (380), and the second slot (321) engages with the auxiliary shaft (380). The auxiliary shaft (380) is used to assist the first limiting member (310) and the second limiting member (320) to move smoothly along the axial direction of the limiting shaft (330).

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