Push block position adjusting mechanism of a cover pasting machine

Abstract

This utility model discloses a pusher position adjustment mechanism for a book cover pasting machine, including a frame body, a sprocket pushing assembly, and a pusher adjustment assembly. The sprocket pushing assembly includes a pushing chain, a drive wheel, a driven wheel, and a pusher, which pushes the book pages. The pusher adjustment assembly includes multiple drive shafts, adjusting wheels, a lifting drive device, and a synchronous chain. During normal operation, the rotary drive device drives the drive shafts to rotate, which in turn drives the pushing chain to rotate, and the pusher pushes the book pages to the pasting position. When adjusting the phase of the book pages, the lifting drive device is controlled to raise and lower the lifting slider, which drives the adjusting wheels, drive wheels, and pushing chain to rotate accordingly, moving the pusher forward or backward as a whole, ensuring that the book pages and book core arrive at the pasting position synchronously. This utility model mechanism does not require complex structural adjustments, can quickly and effectively eliminate phase differences, improve the stability and reliability of the book cover pasting operation, and is easy to operate, has high adjustment accuracy, and can adapt to pasting operations of different specifications and requirements.

Description

Technical Field

[0001] This utility model relates to the field of book cover application technology, specifically to a pusher position adjustment mechanism for a cover application machine. Background Technology

[0002] The cover application to the book block is a crucial step in the book production process, and its quality directly affects the book's appearance and usability. Currently, the page application process typically involves the following: the pages are placed flat on a feeding slide and moved by a pusher; simultaneously, the book block, propelled by a motion fixture, moves to a sideways position above the pages. During the application process, both the book block and the pages must move to the application station at the same time and make contact at the same speed during synchronized movement, allowing the pages to adhere to the adhesive on the book block, thus completing the cover application. This process demands extremely high synchronization between the book block and the pages, requiring them to move at the same speed and to the same position at the same moment.

[0003] However, in actual production and use, especially under high-speed conditions, a phase difference problem can easily occur between the book block and the pages. In other words, the book block and the pages cannot move to the bonding station simultaneously. This situation is very likely to cause the pages to partially misalign with the book block, resulting in substandard bonding between the pages and the book block.

[0004] To solve this problem, existing technologies require complex structural adjustments or reconfigurations of the entire device. This is not only cumbersome and time-consuming, but also makes it difficult to guarantee the accuracy of the adjustment, eliminate phase differences quickly and effectively, and meet the requirements for stability and reliability of the cover application operation in actual production. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the prior art by providing a pusher position adjustment mechanism for a book cover applicator, which can quickly and effectively eliminate the phase difference between the book block and the pages, greatly improving the stability and reliability of the applicator operation and reducing the problem of unqualified applicator due to phase difference.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pusher position adjustment mechanism for a cover pasting machine includes a frame body, and a sprocket pushing assembly and a pusher adjustment assembly disposed on the frame body. The sprocket pushing assembly includes a pushing chain, a drive wheel and several driven wheels connected to the pushing chain, the top edge of the pushing chain extending along a feeding slide plate, and several pushers spaced apart on the pushing chain, the pushers extending beyond the upper side of the feeding slide plate for pushing the pages to be conveyed. The pusher adjustment assembly includes a first drive shaft, a second drive shaft, a third drive shaft, a fourth drive shaft, and a lifting drive device. The first drive shaft is connected to an adjustment wheel and a synchronous wheel that rotate with it. First, the second drive shaft connects to the second adjusting wheel and the second synchronous wheel, which rotate with it; the third drive shaft connects to the third adjusting wheel, which rotates with it; the fourth drive shaft connects to the fourth adjusting wheel, which rotates with it; the four adjusting wheels are arranged in a quadrilateral shape and are connected to an adjusting chain; the lifting drive device is equipped with a lifting slider, which moves up and down between the four adjusting wheels; the lifting slider is connected to the fifth and sixth adjusting wheels, which are arranged vertically; the outer side of the top edge of the adjusting chain is wrapped around the fifth adjusting wheel, and the outer side of the bottom edge of the adjusting chain is wrapped around the sixth adjusting wheel; the first drive shaft connects to a rotation drive device; a synchronous chain connects the first synchronous wheel and the second synchronous wheel, and the two rotate synchronously; the first drive shaft moves through the drive wheel; the first drive shaft is connected to a first bushing, one end of which is connected to the first adjusting wheel, and the other end is connected to the drive wheel, and the two rotate synchronously.

[0008] Furthermore, it includes two sprocket pushing assemblies, with the pushing chains of the two sprocket pushing assemblies extending along both sides of the feeding slide plate respectively; the drive wheels of the two sprocket pushing assemblies are connected by a bushing and rotate synchronously.

[0009] Furthermore, the second drive shaft is connected to a guide roller that rotates with it. The guide roller is located at the end of the feeding slide plate and is used for feeding.

[0010] Furthermore, the first, second, third, and fourth adjusting wheels are arranged in a rectangular shape, with the third and fourth adjusting wheels located below the second and first adjusting wheels, respectively; the portion of the adjusting chain between the first and second adjusting wheels passes around the fifth adjusting wheel, and the portion of the adjusting chain between the third and fourth adjusting wheels passes around the sixth adjusting wheel.

[0011] Furthermore, the lifting drive device includes a motor, a lead screw, a lifting slider, a guide rail, and a mounting housing. The mounting housing is connected to the frame body, the lead screw and the guide rail are vertically connected to the mounting housing, the output shaft of the motor is connected to the lead screw, and the lifting slider is threadedly connected to the lead screw and slidably connected to the guide rail.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This mechanism uses the coordinated operation of the sprocket pushing component and the pusher adjustment component to adjust the phase of all pushers as a whole, ensuring that the book block and the pages arrive at the bonding station at the same time. Without the need for complex structural adjustments or resets to the entire device, it can quickly and effectively eliminate the phase difference between the book block and the pages, greatly improving the stability and reliability of the bonding operation and reducing bonding defects caused by phase differences.

[0014] The method of adjusting the push block phase by raising and lowering the slider allows for precise adjustment of the push block phase, meeting the needs of book blocks and pages of different specifications and requirements. Furthermore, the operation is simple and reduces the skill requirements for operators. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the pusher position adjustment mechanism in one embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the pusher adjustment assembly in one embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the lifting drive device in one embodiment of this application;

[0019] In the diagram: 1. Push chain; 2. Drive wheel; 3. Driven wheel; 4. Feeding slide plate; 5. Push block; 6. Drive shaft one; 7. Drive shaft two; 8. Drive shaft three; 9. Drive shaft four; 10. Adjusting wheel one; 11. Synchronous wheel one; 12. Adjusting wheel two; 13. Synchronous wheel two; 14. Adjusting wheel three; 15. Adjusting wheel four; 16. Adjusting chain; 17. Lifting slider; 18. Adjusting wheel five; 19. Adjusting wheel six; 20. Synchronous chain; 21. Bushing one; 22. Bushing two; 23. Guide roller; 24. Motor; 25. Lead screw; 26. Guide rail; 27. Mounting housing. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In actual production and use, especially under high-speed conditions, a phase difference problem can easily occur between the book block and the pages. That is to say, the book block and the pages cannot move to the bonding station at the same time. This situation is very likely to cause the pages to be partially misaligned with the book block, resulting in unqualified bonding between the pages and the book block.

[0025] To solve this problem, existing technologies require complex structural adjustments or reconfigurations of the entire device. This is not only cumbersome and time-consuming, but also makes it difficult to guarantee the accuracy of the adjustment, eliminate phase differences quickly and effectively, and meet the requirements for stability and reliability of the cover application operation in actual production.

[0026] To address the above technical issues, such as Figures 1 to 3As shown, this embodiment provides a pusher position adjustment mechanism for a cover pasting machine, including a frame body, a sprocket pushing assembly and a pusher adjustment assembly disposed on the frame body; the sprocket pushing assembly includes a pushing chain 1, a drive wheel 2 and several driven wheels 3 connected to the pushing chain 1, the top edge of the pushing chain 1 extends along the feeding slide plate 4, and several pushers 5 are spaced apart on the pushing chain 1, the pushers 5 extending out of the upper side of the feeding slide plate 4 for pushing the pages to be conveyed; the pusher adjustment assembly includes a first drive shaft 6, a second drive shaft 7, a third drive shaft 8, a fourth drive shaft 9, and a lifting drive device; the first drive shaft 6 is connected to an adjusting wheel 10 and a synchronous wheel 11 that rotate with it, the second drive shaft 7 is connected to an adjusting wheel 12 and a synchronous wheel 13 that rotate with it, and the third drive shaft 8 is connected to an adjusting wheel 14 that rotates with it. The drive shaft 38 is connected to the adjusting wheel 4 15, which rotates with it. The four adjusting wheels are arranged in a quadrilateral shape and are connected to the adjusting chain 16. The lifting drive device is equipped with a lifting slider 17, which moves up and down between the four adjusting wheels. The lifting slider 17 is connected to the adjusting wheel 5 18 and the adjusting wheel 6 19, which are arranged vertically. The outer side of the top edge of the adjusting chain 16 is wrapped around the adjusting wheel 5 18, and the outer side of the bottom edge of the adjusting chain 16 is wrapped around the adjusting wheel 6 19. The drive shaft 16 is connected to the rotation drive device. The synchronous wheel 11 and the synchronous wheel 23 are connected by a synchronous chain 20, which rotate synchronously. The drive shaft 16 moves through the drive wheel 2. The drive shaft 16 is connected to the bushing 1 21. One end of the bushing 1 21 is connected to the adjusting wheel 10, and the other end is connected to the drive wheel 2, which rotate synchronously.

[0027] During normal operation, the rotary drive device drives the transmission shaft 6 to rotate. The synchronous pulley 11 connected to the transmission shaft 6 drives the synchronous pulley 13 and the transmission shaft 7 connected to it to rotate synchronously via the synchronous chain 20. The transmission shaft 7 drives the adjusting pulley 12 to rotate, which in turn drives the adjusting pulleys 14, 15, and 10 to rotate via the adjusting chain 16. The adjusting pulley 10 drives the drive wheel 2 to rotate via the bushing 21, and the drive wheel 2 ultimately drives the push chain 1 to rotate. The top edge of the push chain 1 extends along the feeding slide 4, and several push blocks 5 spaced apart on it extend from the upper side of the feeding slide 4. Under the rotation of the push chain 1, the pages are pushed along the feeding slide 4 to the bonding station to cooperate with the book block to complete the cover bonding operation.

[0028] When it is necessary to adjust the phase of the pages to ensure that the book block and pages arrive at the bonding station synchronously, this can be achieved by adjusting the phase of all push blocks 5 as a whole. When it is necessary to move all push blocks 5 backward as a whole, the lifting drive device is controlled to raise the lifting slider 17. During this process, the adjusting chain 16 drives the adjusting wheel 10 and adjusting wheel 4 15 to rotate clockwise, and simultaneously drives the adjusting wheel 2 12 and adjusting wheel 3 14 to rotate counterclockwise. Since the adjusting wheel 10 is connected to the drive wheel 2 through the bushing 21 and rotates synchronously, the clockwise rotation of the adjusting wheel 10 will drive the drive wheel 2 to rotate clockwise, which in turn causes the push chain 1 to rotate clockwise by a certain angle, ultimately causing all push blocks 5 to move backward by a certain phase. Conversely, when it is necessary to move all push blocks 5 forward as a whole, the lifting slider 17 is controlled to descend, and each adjusting wheel, drive wheel, and push chain will rotate in the opposite direction accordingly, causing all push blocks 5 to move forward by a certain phase, thereby ensuring that the pages and book block arrive at the bonding station at the same time and ensuring bonding quality.

[0029] The pusher position adjustment mechanism of the cover pasting machine provided in this embodiment effectively solves the technical problem of phase difference between the book block and the pages under high-speed conditions, leading to unqualified pasting, through the coordinated design of the sprocket pushing component and the pusher adjustment component. Without complex structural adjustments or resets, it can quickly and effectively eliminate phase difference, ensuring that the book block and pages arrive at the pasting position at the same time, guaranteeing a smooth pasting process, and greatly improving the stability and reliability of the cover pasting operation.

[0030] The phase of the push block 5 is adjusted by raising and lowering the slider 17. The operation is simple and the adjustment is highly accurate. The position of the push block 5 can be quickly and accurately adjusted according to the actual production situation to adapt to the bonding operation of book blocks and pages of different specifications and requirements.

[0031] In some embodiments, two sprocket pushing assemblies are included, with the pushing chains 1 of the two sprocket pushing assemblies extending along both sides of the feeding slide plate 4 respectively; the drive wheels 2 of the two sprocket pushing assemblies are connected by bushings 22 and rotate synchronously.

[0032] Two push chains 1 extend along both sides of the feeding slide plate 4, respectively, and can apply pushing force from both sides of the book page simultaneously, making the force on the book page more uniform and stable during displacement, and avoiding the problem of the book page shifting during the push process. Secondly, the two drive wheels 2 achieve synchronous rotation through the bushing 22, ensuring that the running speed and rhythm of the two push chains 1 are completely consistent, further ensuring the smoothness of the book page displacement on the feeding slide plate 4.

[0033] In some embodiments, the drive shaft 27 is connected to a guide roller 23 that rotates with it. The guide roller 23 is located at the end of the feeding slide plate 4 and is used for feeding.

[0034] When the book pages begin to be conveyed, they are first placed on the guide roller 23. When the rotary drive device is activated, it drives the drive shaft 6 to rotate. Through the transmission of the synchronous pulley 11, the synchronous pulley 13, and the synchronous chain 20, the drive shaft 7 rotates synchronously. The rotation of the drive shaft 7 drives the guide roller 23 to rotate as well. The rotating guide roller 23 contacts the book pages, and the friction generated by its rotation guides the book pages forward, smoothly conveying them from the guide roller 23 to the feeding slide plate 4. Subsequently, the push block 5 on the push chain 1 begins to push the book pages to continue moving along the feeding slide plate 4 until the book pages reach the bonding station, where they cooperate with the book core, which has moved to the top of the book pages in a sideways position, to complete the cover bonding operation.

[0035] As a guiding component for the initial feeding of book pages, the guide roller 23 can accurately introduce the book pages into the feeding process, avoiding the problem of positional deviation or failure to smoothly enter the feeding slide plate 4 when the book pages are initially placed, thus ensuring the starting accuracy of book page feeding.

[0036] In some embodiments, adjusting wheel 10, adjusting wheel 2 12, adjusting wheel 3 14, and adjusting wheel 4 15 are arranged in a rectangular shape, with adjusting wheel 3 14 and adjusting wheel 4 15 located below adjusting wheel 2 12 and adjusting wheel 10, respectively; the portion of adjusting chain 16 between adjusting wheel 10 and adjusting wheel 2 12 passes around adjusting wheel 5 18, and the portion of adjusting chain 16 between adjusting wheel 3 14 and adjusting wheel 4 15 passes around adjusting wheel 6 19.

[0037] The rectangular distribution of the adjustment wheels is compact and reasonable, making full use of the space within the frame, making the entire push block position adjustment mechanism more compact, reducing the equipment footprint, and facilitating installation and layout.

[0038] In some embodiments, the lifting drive device includes a motor 24, a lead screw 25, a lifting slider 17, a guide rail 26, and a mounting housing 27. The mounting housing 27 is connected to the frame body. The lead screw 25 and the guide rail 26 are vertically connected to the mounting housing 27. The output shaft of the motor 24 is connected to the lead screw 25. The lifting slider 17 is threadedly connected to the lead screw 25 and slidably connected to the guide rail 26.

[0039] When phase adjustment of push block 5 is required, motor 24 starts, and its output shaft drives lead screw 25 to rotate. Since the lifting slider 17 is threadedly connected to lead screw 25 and slidably connected to guide rail 26, the lifting slider 17 moves vertically up and down along guide rail 26 under the threaded transmission action generated by the rotation of lead screw 25. When all push blocks 5 need to be moved backward, motor 24 is controlled to rotate forward, lead screw 25 rotates clockwise, and lifting slider 17 rises under the guidance of threaded force and guide rail 26; when all push blocks 5 need to be moved forward, motor 24 is controlled to rotate in reverse, lead screw 25 rotates counterclockwise, and lifting slider 17 descends. The rising and falling movement of lifting slider 17 causes changes in the position of connected adjusting wheels 18 and 19, which in turn drive the adjustment wheels to rotate via adjusting chain 16, ultimately achieving precise phase adjustment of push block 5.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pusher position adjustment mechanism for a cover applicator, characterized in that, It includes a frame body, and a sprocket pushing assembly and a push block adjusting assembly disposed on the frame body; The sprocket push assembly includes a push chain (1), a drive wheel (2) connected to the push chain (1), and several passive wheels (3). The top edge of the push chain (1) extends along the feeding slide plate (4). The push chain (1) is provided with several push blocks (5) at intervals. The push blocks (5) extend out of the upper side of the feeding slide plate (4) and are used to push the pages to be conveyed. The push block adjustment assembly includes a first drive shaft (6), a second drive shaft (7), a third drive shaft (8), a fourth drive shaft (9), and a lifting drive device; The first drive shaft (6) is connected to the first adjusting wheel (10) and the first synchronous wheel (11) that follow its rotation. The second drive shaft (7) is connected to the second adjusting wheel (12) and the second synchronous wheel (13) that follow its rotation. The third drive shaft (8) is connected to the third adjusting wheel (14) that follows its rotation. The third drive shaft (8) is connected to the fourth adjusting wheel (15) that follows its rotation. The four adjusting wheels are arranged in a quadrilateral shape and are connected to the adjusting chain (16). The lifting drive device is equipped with a lifting slider (17), which moves up and down between the four adjusting wheels. The lifting slider (17) is connected to the adjusting wheel five (18) and adjusting wheel six (19) arranged vertically. The outer side of the top edge of the adjusting chain (16) is wrapped around the adjusting wheel five (18), and the outer side of the bottom edge of the adjusting chain (16) is wrapped around the adjusting wheel six (19). The first transmission shaft (6) is connected to a rotary drive device, and a synchronous chain (20) is connected between the first synchronous wheel (11) and the second synchronous wheel (13), and the two rotate synchronously. The drive shaft (6) moves through the drive wheel (2). The drive shaft (6) is connected to a bushing (21). One end of the bushing (21) is connected to the adjusting wheel (10), and the other end is connected to the drive wheel (2). The two rotate synchronously.

2. The pusher position adjustment mechanism of a cover applicator according to claim 1, characterized in that, It includes two sprocket push assemblies, and the push chains (1) of the two sprocket push assemblies extend along both sides of the feeding slide plate (4); The drive wheels (2) of the two sprocket push assemblies are connected by bushing two (22) and rotate synchronously.

3. The pusher position adjustment mechanism of a cover applicator according to claim 1, characterized in that, The second drive shaft (7) is connected to a guide roller (23) that rotates with it. The guide roller (23) is located at the end of the feeding slide plate (4) and is used for feeding.

4. The pusher position adjustment mechanism of a cover applicator according to claim 1, characterized in that, The first adjusting wheel (10), the second adjusting wheel (12), the third adjusting wheel (14), and the fourth adjusting wheel (15) are arranged in a rectangular shape, with the third adjusting wheel (14) and the fourth adjusting wheel (15) located below the second adjusting wheel (12) and the first adjusting wheel (10), respectively. The portion of the adjusting chain (16) between the first adjusting wheel (10) and the second adjusting wheel (12) bypasses the fifth adjusting wheel (18), and the portion of the adjusting chain (16) between the third adjusting wheel (14) and the fourth adjusting wheel (15) bypasses the sixth adjusting wheel (19).

5. The pusher position adjustment mechanism of a cover applicator according to claim 1, characterized in that, The lifting drive device includes a motor (24), a lead screw (25), a lifting slider (17), a guide rail (26), and a mounting shell (27). The mounting shell (27) is connected to the frame body. The lead screw (25) and the guide rail (26) are vertically connected to the mounting shell (27). The output shaft of the motor (24) is connected to the lead screw (25). The lifting slider (17) is threadedly connected to the lead screw (25) and slidably connected to the guide rail (26).

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