Glue tank adjusting mechanism of primer machine

Abstract

The utility model discloses a glue tank adjusting mechanism of a primer machine. Two laterally rotating primer wheels are arranged on the inner side of a glue tank, and a first supporting assembly and a second supporting assembly are arranged on the lower side of the glue tank; in the first supporting assembly, two first supporting seats are fixed to the rack body, and first shaft rods are rotationally connected to the first supporting seats; the two adjusting wheels are connected with the first shaft rod and rotate along with the first shaft rod, and each adjusting wheel is provided with an eccentric arc-shaped groove; the two second supporting seats are fixed to the lower side of the glue groove, and the second shaft rod is connected to the second supporting seats and penetrates through the arc-shaped groove; in the second supporting assembly, a third supporting base is fixed to the rack body, a fourth supporting base is fixed to the lower side of the glue groove, and the third supporting base and the fourth supporting base are rotationally connected through a third shaft rod; according to the utility model, by adjusting the inclination of the glue groove, the book block is glued twice through the two bottom glue wheels, the thin glue is firstly glued to facilitate paper adsorption, and then the glue is glued to enable the lower glue to be more easily adsorbed on the back ridge of the book block, so that the paper is ensured to fully adsorb the glue, bubbles are avoided, the gluing is fuller, and the fitting quality of the book block and a book page is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of book binding technology, specifically to a glue tank adjustment mechanism for a bottom glue machine. Background Technology

[0002] Traditional glue applicators typically employ a single glue application method. Specifically, the book block passes through a glue roller during transport, where one glue application operation is completed. However, this simple glue application method has revealed numerous shortcomings in practical applications.

[0003] Because the book block itself has a certain thickness, ensuring that the glue is fully and evenly adhered to the spine during a single application is not easy. Applying too much glue at once can lead to uneven distribution, with some areas having too much glue and others too little, and may even result in air bubbles. These bubbles not only affect the bonding strength between the book block and the pages but may also gradually expand during subsequent use, causing problems such as page bulging and deformation, affecting the overall aesthetics. Conversely, applying too little glue, while avoiding uneven bonding and air bubbles, cannot guarantee sufficient adhesion between the book block and the pages, making pages prone to coming undone. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a glue tank adjustment mechanism for a bottom glue machine. By applying glue in two stages, the paper can fully absorb the glue, avoid air bubbles, and achieve a fuller glue application, thus significantly improving the bonding quality between the book block and the pages.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A glue tank adjustment mechanism for a base glue machine includes two laterally rotating base glue wheels on the inner side of the glue tank, comprising a first support assembly and a second support assembly located on the lower side of the glue tank. The first support assembly includes a first shaft, a second shaft, two adjusting wheels, two first support seats, and two second support seats. The two first support seats are fixedly mounted on the frame body of the base glue machine, and the first shaft is rotatably connected to the two first support seats. The two adjusting wheels are connected to the first shaft and rotate with it. The two adjusting wheels are provided with arc-shaped grooves, which are eccentrically arranged with respect to the adjusting wheels. The two second support seats are fixedly mounted on the lower side of the glue tank, and the second shaft is connected to the two second support seats. The second shaft passes through the two arc-shaped grooves respectively. The second support assembly includes two third support seats fixedly mounted on the frame body and two fourth support seats fixedly mounted on the lower side of the glue tank, and the two third support seats and the two fourth support seats are rotatably connected by the third shaft.

[0007] Furthermore, the main frame includes a fixed bracket, a lifting plate, and a lifting drive assembly; the lifting drive assembly includes several vertically arranged lead screws, one of which is connected to a first handwheel, each lead screw is rotatably connected to the fixed bracket, each lead screw is provided with a sprocket, and several sprockets are connected in series by a chain to rotate synchronously; the lifting plate is provided with several threaded holes, and several lead screws are respectively connected to the threaded holes; the first support base and the third support base are both fixedly connected to the lifting plate.

[0008] Furthermore, the frame body is provided with a clamping seat, which includes a fixing part and a clamping arm. A locking bolt is connected between the fixing part and the clamping arm, and a clamping hole is formed between the fixing part and the clamping arm. The first shaft passes through the clamping hole and is connected to a second handwheel.

[0009] Furthermore, the clamping seat is equipped with a pointer, the first shaft is equipped with a measuring sleeve that rotates with it, the measuring sleeve is provided with a scale line around its periphery, and the pointer points to the measuring sleeve along the axial direction.

[0010] Furthermore, several support springs are provided between the lower left side of the glue tank and the main body of the frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By adjusting the glue tray to an inclined state through the first support component, the book block passes through two bottom glue rollers of different heights for two glue applications. The left bottom glue roller is first coated with a thin layer of glue to facilitate paper adsorption. The right bottom glue roller is then coated with a second layer of glue to make the lower layer of glue more easily adsorbed onto the spine of the book block. This two-coat method ensures that the paper fully absorbs the glue, avoids the formation of air bubbles, makes the glue application more complete, and significantly improves the bonding quality between the book block and the pages.

[0013] 2. The first support component adopts the structure of adjusting wheel and arc groove. The height and tilt angle of the glue tray can be easily adjusted by rotating the first shaft. This adjustability allows the glue tray adjustment mechanism to adapt to the glue application requirements of different book blocks and different glue application processes. Operators do not need complicated operating procedures and can quickly adjust the glue tray status according to the actual situation, which greatly improves the versatility and applicability of the equipment and reduces production costs and equipment replacement frequency.

[0014] 3. The main frame includes a fixed bracket, a lifting plate, and a lifting drive assembly. By rotating the first handwheel, the lifting plate can be raised and lowered using a transmission structure of screw, sprocket, and chain. Since both the first and second support assemblies are fixedly connected to the lifting plate, the raising and lowering of the lifting plate will drive the entire glue tray and the two bottom glue rollers within the glue tray to rise and fall. This adjustment method allows for precise adjustment of the relative position of the bottom glue rollers and the book block, ensuring that the bottom glue rollers can accurately apply glue to the bottom side of the spine of different types of book blocks, thus improving the accuracy and efficiency of glue application. 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 connection structure of the glue tank and its adjustment mechanism in one embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the overall structure of the glue tank adjustment mechanism in one embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the first support component in one embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the clamping seat in one embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing part, the lifting plate, and the lifting drive assembly in one embodiment of this application;

[0021] In the diagram: 1. Glue groove; 2. Bottom rubber wheel; 3. First shaft; 4. Second shaft; 5. Adjusting wheel; 6. First support seat; 7. Second support seat; 8. Main frame; 9. Arc groove; 10. Third support seat; 11. Fourth support seat; 12. Third shaft; 13. Fixed bracket; 14. Lifting plate; 15. Lead screw; 16. First handwheel; 17. Sprocket; 18. Chain; 19. Threaded hole; 20. Clamping seat; 21. Fixing part; 22. Clamping arm; 23. Locking bolt; 24. Second handwheel; 25. Pointer; 26. Measuring sleeve; 27. Support spring. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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," not that the structure must be completely horizontal, but can be slightly tilted.

[0025] 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.

[0026] Traditional glue applicators typically employ a single glue application method. Specifically, the book block passes through a glue roller during transport, where one glue application operation is completed. However, this simple glue application method has revealed numerous shortcomings in practical applications.

[0027] Because the book block itself has a certain thickness, ensuring that the glue is fully and evenly adhered to the spine during a single application is not easy. Applying too much glue at once can lead to uneven distribution, with some areas having too much glue and others too little, and may even result in air bubbles. These bubbles not only affect the bonding strength between the book block and the pages but may also gradually expand during subsequent use, causing problems such as page bulging and deformation, affecting the overall aesthetics. Conversely, applying too little glue, while avoiding uneven bonding and air bubbles, cannot guarantee sufficient adhesion between the book block and the pages, making pages prone to coming undone.

[0028] Regarding the above technical issues, such as Figures 1 to 5 As shown, this embodiment provides a glue tank adjustment mechanism for a base glue machine. The glue tank 1 has two laterally rotating base glue wheels 2 on its inner side, including a first support assembly and a second support assembly located on the lower side of the glue tank 1. The first support assembly includes a first shaft 3, a second shaft 4, two adjusting wheels 5, two first support seats 6, and two second support seats 7. The two first support seats 6 are fixedly mounted on the frame body 8 of the base glue machine, and the first shaft 3 is rotatably connected to the two first support seats 6. The two adjusting wheels 5 are connected to the first shaft 3 and rotate with it. The two adjusting wheels 5 are provided with arc-shaped grooves 9, which are eccentrically positioned with respect to the adjusting wheels 5. The two second support seats 7 are fixedly mounted on the lower side of the glue tank 1, and the second shaft 4 is connected to the two second support seats 7. The second shaft 4 passes through the two arc-shaped grooves 9 respectively. The second support assembly includes two third support seats 10 fixedly mounted on the frame body 8 and two fourth support seats 11 fixedly mounted on the lower side of the glue tank 1. The two third support seats 10 and the two fourth support seats 11 are rotatably connected by a third shaft 12.

[0029] During the gluing process, the book block is moved in a side-standing position with its spine facing down, driven by the motion fixture. As the book block passes over the bottom glue roller 2, the rotating side of the bottom glue roller 2 contacts the bottom side of the spine of the book block, evenly applying hot melt glue to the bottom side of the book block. The book block passes through the left and right bottom glue rollers 2 in sequence, undergoing two gluing processes. Because the first support component adjusts the glue groove 1 in an inclined state, the height of the left bottom glue roller 2 is higher than that of the right bottom glue roller 2. When the book block moves from left to right at the same height, the left bottom glue roller 2 is relatively closer to the bottom of the spine of the book block, so a thinner layer of glue is applied to the bottom of the spine of the book block first, which facilitates paper adhesion. When the book block moves to the right bottom glue roller 2, since the right bottom glue roller 2 is relatively farther from the bottom of the spine of the book block, a second layer of glue can be applied on top of the already applied glue layer, making it easier for the lower layer of glue to adhere to the spine of the book block.

[0030] Specifically, the process of adjusting the tilt angle of the glue tank 1 is as follows.

[0031] The first support assembly provides support for the left side of the glue tank 1. Rotating the first shaft 3 causes the adjusting wheel 5 to rotate accordingly. Due to the eccentric setting of the arc-shaped groove 9 and the adjusting wheel 5, the position of the arc-shaped groove 9 changes during the rotation of the adjusting wheel 5, thereby causing the second shaft 4, which passes through the arc-shaped groove 9, to move vertically. The movement of the second shaft 4, in turn, causes the second support base 7 connected to it and the entire glue tank 1 to move vertically on the left side, thereby adjusting the height of the left side of the glue tank 1.

[0032] The second support assembly provides support to the right side of the glue tank 1. When the height of the first support assembly changes, the height of the second support assembly remains unchanged, thereby achieving the tilt adjustment of the glue tank 1. Specifically, since the third support seat 10 and the fourth support seat 11 are rotatably connected by the third shaft 12, when the height of the glue tank 1 is adjusted by the first support assembly, the glue tank 1 can rotate around the third shaft 12, thereby achieving the adjustment of the tilt angle of the glue tank 1.

[0033] In this embodiment, the first support component adjusts the glue groove 1 to an inclined state, allowing the book block to be glued twice as it passes through the two bottom glue rollers 2. A thin layer of glue is applied first to facilitate paper adhesion, and then another layer of glue is applied on top of this first layer to make it easier for the next layer to adhere to the spine of the book block. This two-stage glue application method allows the paper to fully absorb the glue, avoids air bubbles, and results in a more complete glue application, thereby improving the bonding quality between the book block and the pages.

[0034] The first support component adopts an adjusting wheel 5 and an arc-shaped groove 9. The height and tilt angle of the glue tray 1 can be easily adjusted by rotating the first shaft 3, making operation simple and flexible. This adjustability allows the glue tray adjustment mechanism to adapt to the glue application requirements of different book blocks and different glue application processes, improving the versatility and applicability of the equipment.

[0035] In some embodiments, the frame body 8 includes a fixed bracket 13, a lifting plate 14, and a lifting drive assembly; the lifting drive assembly includes a plurality of vertically arranged lead screws 15, one of which is connected to a first handwheel 16, each lead screw 15 is rotatably connected to the fixed bracket 13, each lead screw 15 is provided with a sprocket 17, and the plurality of sprockets 17 are connected in series by a chain 18 and rotate synchronously; the lifting plate 14 is provided with a plurality of threaded holes 19, and the plurality of lead screws 15 are respectively connected to the threaded holes 19; the first support seat 6 and the third support seat 10 are both fixedly connected to the lifting plate 14.

[0036] When the first handwheel 16 is turned, it drives the connected lead screw 15 to rotate. The sprocket 17 on the lead screw 15 drives the sprockets 17 on the other lead screws 15 to rotate synchronously via the chain 18, thus making all the lead screws 15 rotate synchronously. Since the lead screw 15 is engaged with the threaded hole 19 on the lifting plate 14, the rotation of the lead screw 15 is converted into the linear motion of the lifting plate 14, realizing the lifting and lowering of the lifting plate 14. Furthermore, since both the first support assembly and the second support assembly are fixedly connected to the lifting plate 14, the lifting and lowering of the lifting plate 14 will drive the first support assembly and the second support assembly to rise and fall together, thereby driving the entire rubber groove 1 and the two bottom rubber wheels 2 inside the rubber groove 1 to rise and fall.

[0037] In actual production, different types of book blocks have different sizes and glue application requirements. By adjusting the first handwheel 16, the glue groove 1 and the two bottom glue wheels 2 can be raised and lowered, which can accurately adjust the relative position of the bottom glue wheels 2 and the book block, ensuring that the bottom glue wheels 2 can accurately apply glue to the bottom side of the spine of different types of book blocks.

[0038] In some embodiments, the frame body 8 is provided with a clamping seat 20, which includes a fixing part 21 and a clamping arm 22. A locking bolt 23 is connected between the fixing part 21 and the clamping arm 22. A clamping hole is formed between the fixing part 21 and the clamping arm 22. A first shaft 3 passes through the clamping hole and is connected to a second handwheel 24.

[0039] When it is necessary to adjust the rotation of the first shaft 3, the operator can turn the second handwheel 24 to rotate the first shaft 3 within the clamping hole. After the adjustment is completed, tightening the locking bolt 23 moves the clamping arm 22 closer to the fixing part 21, reducing the gap of the clamping hole and thus firmly clamping the first shaft 3 to prevent accidental rotation during operation and ensure the stability of the first support assembly after adjusting the height of the rubber groove 1.

[0040] In some embodiments, the clamping seat 20 is provided with a pointer 25, the first shaft 3 is provided with a measuring sleeve 26 that rotates with it, the measuring sleeve 26 is provided with a scale line around its periphery, and the pointer 25 points to the measuring sleeve 26 along the axial direction.

[0041] When the operator turns the second handwheel 24, causing the first shaft 3 to rotate, the measuring sleeve 26 also rotates accordingly. At this time, the scale value on the measuring sleeve 26 indicated by the pointer 25 will change accordingly. By observing the scale value indicated by the pointer 25, the operator can intuitively and accurately understand the rotation angle of the first shaft 3, and thus know the adjustment range of the height and tilt angle of the rubber groove 1, greatly improving the accuracy and efficiency of the adjustment.

[0042] In some embodiments, a plurality of support springs 27 are provided between the lower left side of the glue tank 1 and the frame body 8.

[0043] When the glue tank 1 is stationary, the support spring 27 utilizes the elastic deformation properties of its material to generate an elastic restoring force. This force acts upward on the lower left side of the glue tank 1, providing a certain elastic support and sharing the pressure on the glue tank 1. When the operator adjusts the first support component to change the tilt angle of the glue tank 1, the position and orientation of the glue tank 1 will change, and the magnitude and direction of its pressure on the first support component will also change accordingly. During this process, the support spring 27 will be further compressed or stretched according to the movement of the glue tank 1, and its elastic force will always maintain its supporting effect on the lower left side of the glue tank 1, assisting the first support component in bearing the weight of the glue tank 1 and the dynamic force generated during the adjustment process, so that the glue tank 1 can move smoothly during the adjustment process, making the adjustment process smoother.

[0044] 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 glue tank adjusting mechanism of a primer machine, the inner side of the glue tank (1) is provided with two laterally rotating primer wheels (2), characterized in that, It includes a first support assembly and a second support assembly disposed on the lower side of the glue tank (1); The first support assembly includes a first shaft (3), a second shaft (4), two adjusting wheels (5), two first support seats (6), and two second support seats (7); Two first support seats (6) are fixedly mounted on the frame body (8) of the base adhesive machine, and the first shaft (3) is rotatably connected to the two first support seats (6); the two adjusting wheels (5) are connected to the first shaft (3) and rotate with it; the two adjusting wheels (5) are provided with arc grooves (9), and the arc grooves (9) are eccentrically set with the adjusting wheels (5); Two second support seats (7) are fixedly disposed on the lower side of the glue groove (1), and the second shaft (4) is connected to the two second support seats (7); the second shaft (4) passes through the two arc-shaped grooves (9) respectively. The second support assembly includes two third support seats (10) fixedly disposed on the frame body (8) and two fourth support seats (11) fixedly disposed on the lower side of the glue tank (1). The two third support seats (10) and the two fourth support seats (11) are rotatably connected by a third shaft (12).

2. The adhesive tank adjusting mechanism of the primer machine according to claim 1, wherein, The main body of the frame (8) includes a fixed bracket (13), a lifting plate (14), and a lifting drive assembly; The lifting drive assembly includes several vertically arranged lead screws (15), one of which is connected to a first handwheel (16). Each lead screw (15) is rotatably connected to the fixed bracket (13). Each lead screw (15) is provided with a sprocket (17). Several sprockets (17) are connected in series by a chain (18) and rotate synchronously. The lifting plate (14) is provided with a plurality of threaded holes (19), and a plurality of screw rods (15) are respectively connected to the threaded holes (19). The first support base (6) and the third support base (10) are both fixedly connected to the lifting plate (14).

3. The glue tank adjusting mechanism of the bottom gluer according to claim 1, wherein, The frame body (8) is provided with a clamping seat (20), the clamping seat (20) includes a fixing part (21) and a clamping arm (22), a locking bolt (23) is connected between the fixing part (21) and the clamping arm (22), a clamping hole is formed between the fixing part (21) and the clamping arm (22), the first shaft (3) passes through the clamping hole, and the first shaft (3) is connected to the second handwheel (24).

4. The adhesive tank adjusting mechanism of the primer machine according to claim 3, wherein The clamping seat (20) is equipped with a pointer (25), and the first shaft (3) is equipped with a measuring sleeve (26) that rotates with it. The measuring sleeve (26) has a scale line around its periphery, and the pointer (25) points to the measuring sleeve (26) along the axial direction.

5. The glue tank adjusting mechanism of the under-gluing machine according to claim 1, wherein, Several support springs (27) are provided between the lower left side of the glue tank (1) and the main body of the frame (8).

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