Stick blanking connection mechanism

Abstract

The invention provides a book paste discharging connection mechanism which comprises a rotatable rotating shaft, a plurality of book paste conveying guide rollers are arranged on the rotating shaft, and a reciprocating mechanism and a connection claw which is in linkage with the reciprocating mechanism and can swing in a reciprocating mode are arranged in each book paste conveying guide roller. When the book conveying guide roller carries the whole reciprocating mechanism to revolve around the rotating shaft, the guide wheel can roll along the outer contour of the fixed cam, so that the tooth-shaped block is driven by the connecting arm and the rotating arm to generate accurate reciprocating swing. By means of the ingenious design, it is ensured that the connection claw can automatically execute the connection action of opening and closing at the absolutely same phase every time when the book conveying guide roller rotates to the discharging station. By means of the connection mode which is strictly synchronous with the rotation period of the conveying rollers, the problems of deviation and curling of the book stickers caused by unstable connection at the moment of discharging are fundamentally solved, stable and reliable transition is provided for the book stickers from discharging to entering the high-speed conveying belt, and the initial orderliness and reliability of conveying are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of book processing machinery technology, specifically to a book sticker feeding and connecting mechanism. Background Technology

[0002] On a bookbinding production line, bookmarks, after being unloaded from the previous process, need to be quickly and accurately transferred to the next processing station. In existing technology, bookmarks often fall directly onto continuously running conveyor belts, relying on friction and inertia for transport. However, this direct unloading method has significant drawbacks: because bookmarks are soft and their falling trajectory is unstable, they are prone to shifting, tilting, or even curling when they come into contact with the high-speed conveyor belt, failing to immediately form an orderly clamping state. This initial disorder directly leads to inconsistent starting paces in bookmark transport, affecting not only overall transport efficiency but also potentially causing misalignment or jamming in subsequent collating and matching processes, severely impacting production quality and the continuity of equipment operation.

[0003] To address the aforementioned issues, the industry has attempted to implement simple guiding or actuating mechanisms between the book sticker feeding point and the main conveyor belt to improve the book sticker handover. However, common reciprocating mechanisms often rely on actively rotating cams to drive the actuators, and their operating cycles are difficult to precisely and periodically match the rotational motion of the book sticker conveyor wheels. This means that the mechanism cannot guarantee that the connecting components can accurately "welcome" and "clamp" the book sticker at a fixed position at the moment of its arrival, resulting in insufficient reliability of dynamic connection. Therefore, there is still a risk of unstable connection and untimely transfer of book stickers at the moment of feeding, failing to fundamentally solve the technical challenge of a smooth and rapid transition of book stickers to the high-speed conveyor belt, thus hindering further improvements in production line speed and stability. Summary of the Invention

[0004] This invention proposes a book sticker feeding and connecting mechanism, which solves the problem that existing technologies mostly rely on actively rotating cams to drive the actuators, and the cycle of these cams is difficult to match precisely and periodically with the rotation of the book sticker conveying wheel.

[0005] The technical solution of this invention is implemented as follows: The book sticker feeding and connecting mechanism includes a rotatable shaft with multiple book sticker conveying guide rollers on the shaft. The book sticker conveying guide rollers are equipped with a reciprocating mechanism and a connecting claw that is linked to the reciprocating mechanism and can swing back and forth. A cam fixed on a rotating shaft is used for the reciprocating mechanism. A guide wheel is rolled on the outer contour of the cam. A connecting arm is rotatably provided on the guide wheel. A rotating arm is fixed on the connecting arm and extends into and rotatably connected to the book sticker conveying guide roller. A toothed block is fixed on the rotating arm. A gear meshes on the toothed block. A reciprocating shaft is fixed on the gear and rotatably connected to the book sticker conveying guide roller. A connecting claw extends out of the book sticker conveying guide roller on the reciprocating shaft.

[0006] Furthermore, a tension spring is attached to the toothed block, and the other end of the tension spring is attached to the book cover conveying guide roller so that the guide roller is always in close contact with the outer contour of the cam.

[0007] Furthermore, it also includes a fixed base, wherein the rotating shaft is rotatably mounted on the fixed base via bearings.

[0008] Furthermore, a book sticker material platform fixed to the fixed base is provided above the book sticker conveying guide roller.

[0009] Furthermore, there are at least two connecting claws, which are symmetrically distributed on both sides of one of the book sticker conveying guide rollers.

[0010] Furthermore, the book sticker conveying guide rollers corresponding to the connecting claws have extended edges on both sides to serve as clamping and fixing points after the connecting claws connect the book stickers.

[0011] The beneficial effects of the technical solution provided in this application are as follows: 1. The book sticker feeding and connecting mechanism, when the book sticker conveying guide roller carries the entire reciprocating mechanism around the rotating shaft, the guide roller rolls along the outer contour of the fixed cam, thereby driving the toothed block to generate precise reciprocating oscillation through the connecting arm and rotating arm. This ingenious design ensures that the connecting claw automatically performs an "open-close" connecting action at the exact same phase every time the book sticker conveying guide roller rotates to the feeding station. This connecting method, which is strictly synchronized with the rotation cycle of the conveying roller, fundamentally solves the problem of book sticker offset and curling caused by unstable connecting at the moment of feeding, providing a seamless, smooth, and reliable transition for book stickers from feeding to entering the high-speed conveyor belt, greatly improving the initial orderliness and reliability of the transmission; 2. The book cover feeding and connecting mechanism integrates the entire reciprocating transmission chain within the book cover conveying guide rollers, resulting in a compact structure and a direct and efficient power transmission path. This integrated design not only makes the mechanism more stable and quieter but also ensures a high degree of coordination and consistency between the swinging motion of the connecting claws and the rotational motion of the conveying rollers. Compared to traditional reciprocating mechanisms that rely on independent power sources, this invention utilizes the rotation of the main shaft as the sole power source, achieving automation and precision in the connecting action. It eliminates the need for complex independent control and synchronization systems, simplifying the equipment structure, reducing costs, and significantly improving the mechanism's working efficiency and long-term operational stability. It is particularly well-suited to the high-speed, continuous production requirements of modern binding production lines. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the book cover feeding and connecting mechanism of the present invention; Figure 2 This is a schematic cross-sectional view of the book-pasting and connecting mechanism of the present invention; Figure 3 This is an exploded view of the book-pasting and connecting mechanism of the present invention; Figure 4 This is a schematic diagram of the reciprocating mechanism of this invention.

[0014] In the diagram: 10 Fixed base, 20 Rotating shaft, 30 Book sticker conveying guide roller, 40 Book sticker material table, 50 Reciprocating mechanism, 51 Cam, 52 Guide wheel, 53 Connecting arm, 54 Rotating arm, 55 Toothed block, 56 Gear, 57 Reciprocating shaft, 58 Connecting claw, 59 Tension spring, 60 Extension edge. Detailed Implementation

[0015] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1 to 4This invention provides a specific embodiment of a book cover feeding and connecting mechanism. The mechanism is entirely mounted on a fixed base, namely a fixed base 10, which provides a stable and reliable mounting foundation for the entire mechanism. A rotating shaft 20 is rotatably supported on the fixed base 10 via bearings and is driven continuously by an external drive device. This is the main power source for the entire mechanism.

[0017] Multiple book sticker conveying guide rollers 30 are arranged at intervals along the axial direction on the rotating shaft 20. These rollers rotate synchronously with the rotating shaft 20, forming the main carrier for book sticker conveying. Above the book sticker conveying guide rollers 30, a book sticker material platform 40 is fixedly installed. The book sticker material platform 40 is fixed relative to the fixed base 10 and is used to carry and guide the book stickers to be unloaded, so that they can fall accurately to the predetermined work position.

[0018] The core innovation of this invention lies in the reciprocating mechanism 50 integrated inside the book sticker conveying guide roller 30. The driving source of this reciprocating mechanism 50 is a stationary cam 51. It is worth noting that this cam 51 is not an active rotating component driven by an independent motor as in conventional designs, but is indirectly fixed to the fixed base 10 through a suitable connection structure, such as a key connection or screws. Therefore, there is no relative rotation between the cam 51 and the rotating shaft 20, and it remains stationary in space relative to the fixed base 10.

[0019] The movement of the reciprocating mechanism 50 originates from a guide wheel 52 that remains in constant contact with the outer contour of the cam 51. The guide wheel 52 is rotatably mounted at one end of a connecting arm 53. The other end of the connecting arm 53 is fixed to a rotating arm 54. The rotating arm 54 extends into the internal cavity of the book sticker conveying guide roller 30 and is rotatably connected to the book sticker conveying guide roller 30 via a structure such as a bearing or bushing, allowing the rotating arm 54 to swing at a small angle relative to the book sticker conveying guide roller 30.

[0020] A toothed block 55 is fixedly mounted on the portion of the rotating arm 54 located inside the book sticker conveying guide roller 30. The toothed surface of the toothed block 55 meshes with a gear 56. The gear 56 is fixedly mounted on a reciprocating shaft 57, which is also rotatably connected to the book sticker conveying guide roller 30 via bearings or other supports. This means that the gear 56 and the reciprocating shaft 57 can rotate together relative to the book sticker conveying guide roller 30. At least one connecting claw 58 is fixedly provided on the reciprocating shaft 57, extending from the side or a specific opening of the book sticker conveying guide roller 30, for performing a connecting action.

[0021] To ensure the reliability and stability of the mechanism's movement, in a preferred embodiment, a tension spring 59 is attached between the toothed block 55 and the inner wall of the book cover conveying guide roller 30. The continuous tension provided by the tension spring 59 ensures that the guide wheel 52, connected to the connecting arm 53, is always firmly pressed against the outer contour of the fixed cam 51, thereby avoiding motion inaccuracies caused by inertia or backlash and ensuring that the motion trajectory strictly follows the profile of the cam 51.

[0022] Regarding the arrangement of the connecting claws 58, to further enhance the stability and balance of clamping, it is preferable to have at least two connecting claws 58, symmetrically distributed on both sides of one of the book sticker transport guide rollers 30. These connecting claws 58 are all fixed on the same reciprocating shaft 57, thus enabling synchronous opening and closing actions. Correspondingly, radially protruding extension edges 60 are provided on both sides of the book sticker transport guide roller 30 used to mount the connecting claws 58. When the connecting claws 58 are closed, their ends engage with the extension edges 60 to form a clamping area, reliably pressing the book sticker onto the extension edges 60.

[0023] The mechanism operates as follows: An external drive unit drives the rotating shaft 20 and its book-strip conveying guide roller 30 to rotate continuously. Since the cam 51 remains stationary, the entire reciprocating mechanism 50 revolves with the book-strip conveying guide roller 30, forcing the guide wheel 52 to roll along the irregular outer contour of the cam 51. The height variation of the outer contour of the cam 51 is converted into the reciprocating oscillation of the rotating arm 54 through the guide wheel 52 and the connecting arm 53.

[0024] The swing arm 54 drives the toothed block 55 on it to swing back and forth, and the toothed block 55 in turn drives the gear 56 meshing with it to rotate in both directions. The rotational motion of the gear 56 is directly transmitted to the reciprocating shaft 57, and finally converted into the opening and closing action of the connecting claw 58 fixed on the reciprocating shaft 57. The outer contour of the cam 51 is precisely designed to ensure that when the book sticker conveying guide roller 30 rotates to directly below the book sticker material table 40's discharge port, the connecting claw 58 moves to its maximum opening angle, ready to "welcome" the falling book sticker. As the roller continues to rotate a very small angle, the connecting claw 58 quickly closes, firmly clamping the book sticker onto the extended edge 60 of the roller.

[0025] The clamped book stickers are then carried away from the unloading station by the rotation of the book sticker conveyor guide roller 30. A conveyor belt A (not shown in the figure) is usually fitted around the outside of the book sticker conveyor guide roller 30, and the outer side of conveyor belt A is pressed against another conveyor belt B (not shown in the figure) by friction. When the book sticker is pulled by the connecting claw 58 to the clamping inlet of conveyor belts A and B, the book sticker is smoothly transferred from between the connecting claw 58 and the extension edge 60 into the clamping and conveying channel formed by conveyor belts A and B, and is then continuously conveyed by the friction of the belts.

[0026] In summary, this invention, through the ingenious design of "fixed cam + follower mechanism", utilizes a single rotary power source to achieve an automatic connection function that is strictly synchronized with the main conveyor's rotational motion and has a precise cycle within a compact space, effectively solving the technical problem of easy disorder in the initial stage of book sticker feeding.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A book label feeding and connecting mechanism, characterized in that, It includes a rotatable shaft (20), on which multiple book sticker conveying guide rollers (30) are provided. The book sticker conveying guide rollers (30) are provided with a reciprocating mechanism (50) and a connecting claw (58) that is linked with the reciprocating mechanism (50) and can swing back and forth. The reciprocating mechanism (50) is fixed to a cam (51) on a rotating shaft (20). A guide wheel (52) is rolled on the outer contour of the cam (51). A connecting arm (53) is rotatably provided on the guide wheel (52). A rotating arm (54) is fixed on the connecting arm (53) and extends into the book sticker conveying guide roller (30) and is rotatably connected to it. A toothed block (55) is fixed on the rotating arm (54). A gear (56) meshes on the toothed block (55). A reciprocating shaft (57) is fixed on the gear (56) and is rotatably connected to the book sticker conveying guide roller (30). A connecting claw (58) extending out of the book sticker conveying guide roller (30) is provided on the reciprocating shaft (57).

2. The book cover feeding and connecting mechanism as described in claim 1, characterized in that, A tension spring (58) is attached to the toothed block (55), and the other end of the tension spring (58) is attached to the book sticker conveying guide roller (30) so that the guide roller (52) is always in close contact with the outer contour of the cam (51).

3. The book cover feeding and connecting mechanism as described in claim 1, characterized in that, It also includes a fixed base (10), wherein the rotating shaft (20) is rotatably mounted on the fixed base (20) via a bearing.

4. The book cover feeding and connecting mechanism as described in claim 1, characterized in that, Above the book sticker conveying guide roller (30) is a book sticker material platform (40) fixed to the fixed base (10).

5. The book cover feeding and connecting mechanism as described in claim 1, characterized in that, There are at least two connecting claws (58), which are symmetrically distributed on both sides of one of the book sticker conveying guide rollers (30).

6. The book cover feeding and connecting mechanism as described in claim 1, characterized in that, The book sticker conveying guide roller (30) corresponding to the connecting claw (58) has an extension edge (60) on both sides, which serves as the clamping and fixing point for the connecting claw (58) after the book sticker is connected.

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