Side rubber wheel adjusting mechanism of side rubber machine

Abstract

The utility model discloses a side rubber wheel adjusting mechanism of a side rubber machine. The side rubber wheel adjusting mechanism comprises a machine body, a left base, a left side rubber wheel, a right base and a right side rubber wheel, parallel screw rods and guide rods are arranged between the two sides of the machine body; the left rubber wheel and the right rubber wheel are rotationally connected with the left base and the right base respectively; the left base and the right base are connected with the lead screw and the guide rod in a penetrating mode through the through holes and connected with the left guide plate and the right guide plate respectively. The left guide plate is in threaded connection with the first screw rod and the second screw rod; the right guide plate is in threaded connection with the third screw rod and the fourth screw rod; the first screw rod and the second screw rod as well as the third screw rod and the fourth screw rod synchronously rotate through chain wheel assemblies respectively; the risk that the lead screw deforms or is damaged due to long-term use is reduced, the situation that when a book block passes through, extrusion on the side rubber wheel directly acts on the lead screw is avoided, and the service life of equipment is prolonged.

Description

Technical Field

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

[0002] The book block side gluing mechanism, as an important component of a perfect binding machine, is responsible for evenly applying hot melt adhesive to both sides of the book block's spine to ensure precise adhesion between the book block and the cover, forming the finished book. Therefore, the accuracy and stability of the book block side gluing mechanism are crucial for improving the quality of bookbinding.

[0003] In the prior art, patent publication number CN214295170U discloses a book block side gluing mechanism for a fully automatic binding machine. This mechanism realizes the side gluing function on the spine of the book block through a front driven frame (left base) and a rear transmission frame (right base) that are movably mounted on the support shaft, and a pair of side glue rollers installed on the upper ends of the two.

[0004] However, this mechanism has certain shortcomings in its side roller spacing adjustment mechanism. First, it uses a single screw to drive the front driven frame or rear transmission frame to adjust the spacing between the two side rollers. The single-screw design limits its ability to withstand the load during adjustment. With prolonged use, the screw is prone to deformation or damage due to frequent load transmission, affecting the stability and accuracy of the side roller spacing adjustment.

[0005] Secondly, every slight change in the book block thickness requires frequent adjustments to the spacing between the two side glue rollers, consuming significant time and effort for operators and reducing production efficiency. Furthermore, during actual production, operators may forget or fail to adjust the side glue roller spacing due to negligence or other reasons. When the book block thickness does not match the side glue roller spacing, the book block will exert pressure on the side glue rollers as it passes through, causing the front driven frame or rear drive frame to compress the screw. This additional compressive force accelerates screw wear and damage, shortens equipment lifespan, and increases maintenance costs and downtime. Utility Model Content

[0006] The purpose of this invention is to address the problems existing in the prior art by providing a side glue wheel adjustment mechanism for a side glue machine. This mechanism reduces the risk of lead screw deformation or damage due to long-term use, avoids the direct pressure of the side glue wheel on the lead screw when the book core passes through, and extends the service life of the equipment.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A side-adhesive roller adjustment mechanism for a side-adhesive machine includes a machine body, a left base, a left side roller, a right base, and a right side roller. Parallel first, second, third, and fourth lead screws, a first guide rod, and a second guide rod are provided between the two sides of the machine body. The left side roller is rotatably connected to the left base, and the right side roller is rotatably connected to the right base. The left and right bases have corresponding through holes, which are respectively connected to the first, second, third, and fourth lead screws, the first guide rod, and the second guide rod. A left guide plate is floatingly connected to the left side of the left base, and the left guide plate is threadedly connected to both the first and second lead screws. A right guide plate is floatingly connected to the right side of the right base, and the right guide plate is threadedly connected to both the third and fourth lead screws. The first and second lead screws are connected by a first sprocket assembly for synchronous rotation; the third and fourth lead screws are connected by a second sprocket assembly for synchronous rotation.

[0009] Furthermore, one end of the first lead screw extends out of the machine body and is provided with a first square head; one end of the third lead screw extends out of the machine body and is provided with a second square head.

[0010] Furthermore, the first sprocket assembly includes a first sprocket disposed on the first lead screw, a second sprocket disposed on the second lead screw, and a chain connecting the two sprockets; the machine body is provided with a first rotary drive device, the first rotary drive device is connected to a third sprocket, and the third sprocket is connected to the chain.

[0011] Furthermore, the left base is connected to the left guide plate by a first bolt, which includes a screw and a screw head. One end of the screw is connected to the threaded hole of the left base, and the other end passes through the through hole of the left guide plate and is connected to the screw head. The screw is fitted with a buffer spring, one end of which abuts against the left guide plate and the other end of which abuts against the left base.

[0012] Furthermore, both the left base and the right base are provided with guide holes and guide grooves. The guide holes are connected to the second guide rod, and the guide grooves are connected to the first guide rod. The cross-section of the guide groove is rectangular, with one side being open.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting multiple lead screws to share the load during the adjustment process, the load capacity of the entire adjustment mechanism is greatly enhanced, effectively reducing the risk of lead screw deformation or damage due to long-term use, thereby significantly improving the stability and accuracy of the side rubber wheel spacing adjustment;

[0015] 2. The left guide plate is floatingly connected to the left base, and the right guide plate is floatingly connected to the right base. The lead screw drives the guide plate, which in turn moves the base. That is, the lead screw is not in rigid contact with the base. When the book block passes between the two side rubber rollers, the force exerted by the book block on the side rubber rollers is slightly expanded due to the floating connection between the guide plate and the base. This creates a floating clamping effect on the book block, preventing the pressure exerted by the book block on the side rubber rollers from directly acting on the lead screw. This effectively prevents the base from exerting force on the lead screw, reduces the risk of damage to the lead screw, and extends the service life of the equipment.

[0016] 3. The first lead screw and the second lead screw are connected by the first sprocket assembly, and the third lead screw and the fourth lead screw are connected by the second sprocket assembly, which realizes the synchronous rotation between the lead screws and ensures the high synchronicity and consistency of the left guide plate and the right guide plate during the adjustment process, making the position adjustment of the left rubber wheel and the right rubber wheel more precise and coordinated. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of the rubber wheel adjustment mechanism in one embodiment of this application;

[0019] Figure 2 This is a diagram showing the connection structure between the left / right base and the lead screw / guide rod in one embodiment of this application;

[0020] Figure 3 This is a connection structure diagram of the left / right base and the lead screw / guide rod from another perspective in one embodiment of this application;

[0021] Figure 4 This is a connection structure diagram of the left guide plate and the left base in a split state according to an embodiment of this application;

[0022] In the diagram: 1. Body; 2. Left base; 3. Left rubber wheel; 4. Right base; 5. Right rubber wheel; 6. First lead screw; 7. Second lead screw; 8. Third lead screw; 9. Fourth lead screw; 10. First guide rod; 11. Second guide rod; 12. Left guide plate; 13. Right guide plate; 14. First square head; 15. Second square head; 16. First sprocket; 17. Second sprocket; 18. Chain; 19. First rotary drive device; 20. Third sprocket; 21. Screw; 22. Screw head; 23. Buffer spring; 24. Guide hole; 25. Guide groove. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] In the prior art, patent publication number CN214295170U discloses a book block side gluing mechanism for a fully automatic binding machine. This mechanism realizes the side gluing function on the spine of the book block through a front driven frame (left base) and a rear transmission frame (right base) that are movably mounted on the support shaft, and a pair of side glue rollers (side glue wheels) installed on the upper ends of the two.

[0028] However, this mechanism has certain shortcomings in its side roller spacing adjustment mechanism. First, it uses a single screw to drive the front driven frame or rear transmission frame to adjust the spacing between the two side rollers. The single-screw design limits its ability to withstand the load during adjustment. With prolonged use, the screw is prone to deformation or damage due to frequent load transmission, affecting the stability and accuracy of the side roller spacing adjustment.

[0029] Secondly, every slight change in the book block thickness requires frequent adjustments to the spacing between the two side glue rollers, consuming significant time and effort for operators and reducing production efficiency. Furthermore, during actual production, operators may forget or fail to adjust the side glue roller spacing due to negligence or other reasons. When the book block thickness does not match the side glue roller spacing, the book block will exert pressure on the side glue rollers as it passes through, causing the front driven frame or rear drive frame to compress the screw. This additional compressive force accelerates screw wear and damage, shortens equipment lifespan, and increases maintenance costs and downtime.

[0030] To address the above technical issues, such as Figures 1 to 4 As shown, this embodiment provides a side roller adjustment mechanism for a side-adhesive machine, including a machine body 1, a left base 2, a left side roller 3, a right base 4, and a right side roller 5; a first lead screw 6, a second lead screw 7, a third lead screw 8, a fourth lead screw 9, a first guide rod 10, and a second guide rod 11 are provided between the two sides of the machine body 1; the left side roller 3 is rotatably connected to the left base 2, and the right side roller 5 is rotatably connected to the right base 4; the left base 2 and the right base 4 are provided with corresponding through holes, which are respectively connected to the first lead screw 6, the second lead screw 7, the third lead screw 8, and the fourth lead screw 9. 9. The first guide rod 10 and the second guide rod 11 are connected through each other; the left guide plate 12 is floatingly connected to the left side of the left base 2, and the left guide plate 12 is threadedly connected to the first lead screw 6 and the second lead screw 7 respectively; the right guide plate 13 is floatingly connected to the right side of the right base 4, and the right guide plate 13 is threadedly connected to the third lead screw 8 and the fourth lead screw 9 respectively; the first lead screw 6 and the second lead screw 7 are connected by the first sprocket assembly to achieve synchronous rotation; the third lead screw 8 and the fourth lead screw 9 are connected by the second sprocket assembly to achieve synchronous rotation.

[0031] In the above embodiment, a left guide plate 12 is connected to one side of the left base 2. The left guide plate 12 is threadedly connected to the first lead screw 6 and the second lead screw 7. The first lead screw 6 and the second lead screw 7 are connected by a first sprocket assembly to achieve synchronous rotation. When the first lead screw 6 and the second lead screw 7 rotate synchronously, due to the threaded connection between the left guide plate 12 and the two lead screws, the left guide plate 12 will move left and right on the lead screws according to the direction of rotation. The displacement of the left guide plate 12 will drive the left base 2 and the left rubber wheel 3 connected to it to move left and right, thereby realizing the adjustment of the position of the left rubber wheel.

[0032] A right guide plate 13 is connected to one side of the right base 4. The right guide plate 13 is threadedly connected to the third lead screw 8 and the fourth lead screw 9. The third lead screw 8 and the fourth lead screw 9 are connected by a second sprocket assembly to achieve synchronous rotation. When the third lead screw 8 and the fourth lead screw 9 rotate synchronously, the right guide plate 13 will move left and right on the lead screws, thereby driving the right base 4 and the right rubber wheel 5 to move left and right, thus adjusting the position of the right rubber wheel.

[0033] During operation, the book block, propelled by the motion fixture, passes between two side rollers along its lower spine. Hot melt adhesive adhering to the surface of the rollers applies glue to both sides of the book block's spine during rotation, ensuring precise adhesion to the book cover later.

[0034] By synchronously rotating the first lead screw 6 and the second lead screw 7, as well as the third lead screw 8 and the fourth lead screw 9, the interval between the left rubber wheel 3 and the right rubber wheel 5 can be adjusted to adapt to book blocks of different thicknesses, thereby improving the versatility and flexibility of the equipment.

[0035] This embodiment uses multiple lead screws to share the load during the adjustment process, which greatly enhances the load capacity of the entire adjustment mechanism and effectively reduces the risk of lead screw deformation or damage due to long-term use, thereby significantly improving the stability and accuracy of the adjustment.

[0036] The first lead screw 6 and the second lead screw 7 are connected by a first sprocket assembly to achieve synchronous rotation; the third lead screw 8 and the fourth lead screw 9 are connected by a second sprocket assembly to achieve synchronous rotation. When the first lead screw 6 and the second lead screw 7 rotate synchronously, the left guide plate 12, due to its threaded connection with the two lead screws, will shift left and right on the lead screws according to the direction of rotation, thereby causing the connected left base 2 and left rubber wheel 3 to shift left and right, thus adjusting the position of the left rubber wheel. Similarly, when the third lead screw 8 and the fourth lead screw 9 rotate synchronously, the right guide plate 13 will shift left and right on the lead screws, causing the right base 4 and right rubber wheel 5 to shift left and right, thus adjusting the position of the right rubber wheel. The synchronous rotation between the lead screws through the sprocket assembly ensures a high degree of synchronicity and consistency between the left guide plate 12 and the right guide plate 13 during the adjustment process, making the position adjustment of the left rubber wheel 3 and the right rubber wheel 5 more precise and coordinated.

[0037] The left guide plate 12 is floatingly connected to the left base 2, and the right guide plate 13 is floatingly connected to the right base 4. The lead screw drives the guide plate, which in turn moves the base, meaning the lead screw is not in rigid contact with the base. In the prior art, when the book block thickness changes slightly without adjusting the spacing between the two side rollers, the book block's pressure on the side rollers can cause the front driven frame or rear transmission frame to press on the screw, easily damaging it. In this embodiment, when the book block passes between the two side rollers, it exerts a force on them. Due to the floating connection between the guide plate and the base, the two side rollers can be slightly spread apart, thus creating a floating clamp on the book block. This avoids the pressure from the book block on the side rollers directly acting on the lead screw, effectively preventing the base from exerting force on the lead screw, reducing the risk of lead screw damage, and extending the equipment's service life.

[0038] In some embodiments, one end of the first lead screw 6 extends out of the machine body and is provided with a first square head 14; one end of the third lead screw 8 extends out of the machine body and is provided with a second square head 15.

[0039] When it is necessary to adjust the spacing between the side rubber wheels, the operator can use a suitable tool, such as a wrench, and place the tool on the first square head 14 and the second square head 15. Since the square head facilitates the application of torque, manually turning the tool will drive the first lead screw 6 and the third lead screw 8 to rotate. The first lead screw 6 drives the second lead screw 7 to rotate synchronously through the first sprocket assembly, thereby driving the left guide plate 12 to move left and right, and moving the left base 2 and the left rubber wheel 3; the third lead screw 8 drives the fourth lead screw 9 to rotate synchronously through the second sprocket assembly, driving the right guide plate 13 to move left and right, and moving the right base 4 and the right rubber wheel 5, thereby realizing the adjustment of the spacing between the side rubber wheels.

[0040] In some embodiments, the first sprocket assembly includes a first sprocket 16 disposed on a first lead screw 6, a second sprocket 17 disposed on a second lead screw 7, and a chain 18 connecting the two sprockets; the machine body 1 is provided with a first rotary drive device 19, the first rotary drive device 19 is connected to a third sprocket 20, and the third sprocket 20 is connected to the chain 18.

[0041] When it is necessary to adjust the spacing between the side rubber wheels, the first rotary drive device 19 is activated, driving the third sprocket 20 to rotate. Since the third sprocket 20 meshes with the chain 18, the chain 18 moves accordingly, thereby driving the first sprocket 16 and the second sprocket 17 to rotate synchronously, ultimately causing the first lead screw 6 and the second lead screw 7 to rotate synchronously, driving the left guide plate 12 to move left and right, thus realizing the electric adjustment of the position of the left rubber wheel 3.

[0042] In some embodiments, the second sprocket assembly has the same structure and connection method as the first sprocket assembly.

[0043] In some embodiments, the left base 2 and the left guide plate 12 are connected by a first bolt, which includes a screw 21 and a screw head 22. One end of the screw 21 is connected to the threaded hole of the left base 2, and the other end passes through the through hole of the left guide plate 12 and is connected to the screw head 22. The screw 21 is fitted with a buffer spring 23, one end of which abuts against the left guide plate 12 and the other end of which abuts against the left base 2.

[0044] Under normal operating conditions, when the book block passes between the two side rollers, it exerts a force on them. Due to the presence of the buffer spring 23, the two side rollers can be slightly spread apart, thus creating a floating clamping effect on the book block. When adjusting the position of the side rollers, when the left guide plate 12 is driven to the left by the lead screw, it directly drives the left base 2 to move rigidly through the first bolt, causing the left roller 3 to move accordingly. When the left guide plate 12 is driven to the right by the lead screw, due to the elasticity of the buffer spring 23, the buffer spring 23 needs to be compressed first. Only after the spring is compressed to a certain extent will it push the left base 2 to move to the right.

[0045] By setting a buffer spring 23, when the book block passes between the two side rubber rollers, the buffer spring 23 enables the two side rubber rollers to slightly expand the book block, achieving floating clamping. This eliminates the need to frequently adjust the distance between the two side rubber rollers when the book block has only a slight thickness difference, greatly simplifying the operation process and improving production efficiency.

[0046] In some embodiments, the above floating structure is also provided between the right base 4 and the right guide plate 13, and is arranged symmetrically with the left base 2.

[0047] When the book block passes between the right rubber roller 5 and the left rubber roller 3, the book block exerts a force on the right rubber roller 5. Due to the presence of the buffer spring in the floating structure between the right base 4 and the right guide plate 13, the right rubber roller 5 can also be slightly opened within a certain range, thereby forming a floating clamp on the book block.

[0048] In some embodiments, both the left base 2 and the right base 4 are provided with guide holes 24 and guide grooves 25. The guide holes 24 are connected to the second guide rod 11, and the guide grooves 25 are connected to the first guide rod 10. The cross-section of the guide grooves 25 is rectangular, and one side of it is open.

[0049] The guide hole 24 and guide groove 25 are connected to the second guide rod 11 and the first guide rod 10 respectively, providing reliable guidance for the movement of the base and ensuring the accuracy of the side rubber wheel spacing adjustment. The guide groove 25 adopts a rectangular cross-section and an open design on one side, which fully considers the assembly and design errors that may occur in actual production and improves the assembly fault tolerance of the equipment.

[0050] 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 side rubber wheel adjusting mechanism of a side rubber machine, characterized by, Includes the main body (1), left base (2), left rubber wheel (3), right base (4), and right rubber wheel (5); The machine body (1) is provided with a first lead screw (6), a second lead screw (7), a third lead screw (8), a fourth lead screw (9), a first guide rod (10), and a second guide rod (11) in parallel between its two sides. The left rubber wheel (3) is rotatably connected to the left base (2), and the right rubber wheel (5) is rotatably connected to the right base (4); the left base (2) and the right base (4) are provided with corresponding through holes, which are respectively connected to the first lead screw (6), the second lead screw (7), the third lead screw (8), the fourth lead screw (9), the first guide rod (10) and the second guide rod (11); The left base (2) is floatingly connected to a left guide plate (12), which is threadedly connected to the first lead screw (6) and the second lead screw (7); the right base (4) is floatingly connected to a right guide plate (13), which is threadedly connected to the third lead screw (8) and the fourth lead screw (9). The first lead screw (6) and the second lead screw (7) are connected by a first sprocket assembly to achieve synchronous rotation; the third lead screw (8) and the fourth lead screw (9) are connected by a second sprocket assembly to achieve synchronous rotation.

2. A side rubber wheel adjusting mechanism of a side rubber machine according to claim 1, wherein One end of the first lead screw (6) extends out of the machine body (1) and is provided with a first square head (14); One end of the third lead screw (8) extends out of the machine body (1) and is provided with a second square head (15).

3. The side glue wheel adjustment mechanism of a side glue machine according to claim 1, characterized in that, The first sprocket assembly includes a first sprocket (16) disposed on the first lead screw (6), a second sprocket (17) disposed on the second lead screw (7), and a chain (18) connecting the two sprockets. The body (1) is provided with a first rotary drive device (19), the first rotary drive device (19) is connected to a third sprocket (20), and the third sprocket (20) is connected to the chain (18).

4. The side rubber wheel adjusting mechanism of the side rubber machine according to claim 1, wherein The left base (2) and the left guide plate (12) are connected by a first bolt, which includes a screw (21) and a screw head (22). One end of the screw (21) is connected to the threaded hole of the left base (2), and the other end passes through the through hole of the left guide plate (12) and is connected to the screw head (22). The screw (21) is fitted with a buffer spring (23), one end of which abuts against the left guide plate (12) and the other end of which abuts against the left base (2).

5. The side rubber wheel adjusting mechanism of the side rubber machine according to claim 1, wherein The left base (2) and the right base (4) are both provided with guide holes (24) and guide grooves (25). The guide holes (24) are connected to the second guide rod (11), and the guide grooves (25) are connected to the first guide rod (10). The cross-section of the guide grooves (25) is rectangular, and one side of it is open.

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