A book block trimming device for a perfect binding line

Abstract

A book block aligning device for a perfect binding line, comprising a book block vibrating aligning mechanism, a book block conveying mechanism and a detecting mechanism; the book block vibrating aligning mechanism comprises a vibrating bottom plate, a rear side baffle and a front side baffle; the rear side baffle is arranged perpendicularly to the vibrating bottom plate, and is fixed to the vibrating bottom plate; the front side baffle is supported on the vibrating bottom plate in a floating manner, and can move close to or away from the rear side baffle along with a push plate and a driving device; the book block conveying mechanism comprises a chain conveyor and a plurality of poking rods, the poking rods are arranged on the chain conveyor at equal intervals, the interval between two adjacent poking rods is greater than the height of the book block, and the poking rods are perpendicular to the conveying direction of the book block; the detecting mechanism comprises a photoelectric switch for detecting whether the book block is too high; and the device further comprises a controller for receiving the signal of the photoelectric switch and controlling the chain conveyor and the vibrating motor. The book block moving device is arranged to facilitate the entry and exit of the book block, improve the production efficiency, and increase the detecting device to improve the yield.

Description

Technical Field

[0001] This utility model belongs to the technical field of book assembly production equipment, specifically relating to a book block alignment device for perfect binding lines. Background Technology

[0002] The perfect binding line is a combined processing line that includes collating, spine milling, gluing, cover application, and trimming. The book blocks collated by the collating machine are directly transferred to the perfect binding machine. During the collating process, the collated book blocks may have crooked edges and uneven spines, which will affect the subsequent bookbinding quality. Therefore, the book blocks need to be straightened after collating.

[0003] Utility model patent CN220841982U discloses a book block alignment mechanism, including a channel, a vibration mechanism, a first alignment mechanism, and a second alignment mechanism. The channel includes a base plate and two side plates, both of which are disposed on the base plate and face each other to prevent the book block from slipping. The base plate is used to transport the book block. The vibration mechanism is disposed on the channel and located on the base plate. The vibration mechanism includes a motor mounting plate and a miniature vibration motor. The motor mounting plate is threadedly fixed to the base plate to fix the motor. The miniature vibration motor is disposed on the motor mounting plate and is used to align the back of the book block by vibrating the base plate. The alignment mechanisms are disposed on the channel and located on the side plates. The two alignment mechanisms are located at opposite ends of the channel. Each alignment mechanism includes a stop bar, which is disposed on the channel and parallel to the base plate. When the book block moves along the channel direction to the top of the channel, the front end of the book block collides with the two stop bars, further adjusting the top and bottom edges of the book block. The book block entry and exit alignment mechanism relies on manual labor or vibration to position the book blocks, which is inefficient and unsuitable for automated perfect binding production lines. Furthermore, the alignment lever in this mechanism blocks the passageway, requiring manual intervention to move it and allow the book blocks to pass smoothly, significantly impacting production efficiency. Additionally, the lack of a detection device necessitates manual judgment to ensure book block alignment. Prolonged manual work can lead to misjudgments, resulting in defective products flowing to subsequent stations and reducing the yield rate. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a book block alignment device for perfect binding lines. It includes a book block moving device to facilitate the entry and exit of book blocks, improve production efficiency, and add a detection device to increase the yield rate.

[0005] A book block alignment device for perfect binding lines includes a book block alignment mechanism, a book block conveying mechanism, and a detection mechanism; The book core vibration mechanism includes a vibration base plate, a rear baffle plate, and a front baffle plate; The rear baffle is perpendicular to the vibrating base plate and is fixed to the vibrating base plate. The front baffle is floatingly supported on the vibrating base plate and can move closer to or further away from the rear baffle along with the push plate and the drive device. The book block conveying mechanism includes a chain conveyor and multiple levers. The multiple levers are mounted on the chain conveyor at equal intervals. The distance between two adjacent levers is greater than the height of the book block. The levers are perpendicular to the book block conveying direction. The detection mechanism includes a photoelectric switch for detecting whether the book core is too high; It also includes a controller for receiving photoelectric switch signals and controlling the chain conveyor and vibrating motor.

[0006] The chain conveyor includes a chain frame and a conveyor chain. The conveyor chain is mounted on the chain frame via sprockets, one of which is connected to a drive motor.

[0007] The front baffle includes a vertical plate and a horizontal plate connected to the lower end of the vertical plate. The vertical plate and the rear baffle are parallel to each other. The horizontal plate is provided with a plurality of guide holes, which are arranged side by side along the length of the vibrating base plate. The flat push plate is bent downward on one side to be flush with the upright plate of the front baffle, and connected to the driving device on the other side. The flat push plate is provided with guide posts that correspond one-to-one with the guide through holes, and the guide posts are fitted with springs.

[0008] The guide hole is a stepped hole, including a large hole at the top and a small hole at the bottom. The guide post is clearance-fitted with the small hole of the stepped hole, and the spring is clearance-fitted with the large hole of the stepped hole. The upper end of the spring abuts against the lower end face of the flat push plate, and the lower end abuts against the stepped surface inside the stepped hole.

[0009] One end of the vibrating base plate is connected to the frame via an elastic element, and the other end is fixedly connected to the frame via a spring sheet. A vibrating motor is installed under the vibrating base plate.

[0010] The drive device includes two reciprocating lead screws and a servo motor. Lead screw nuts are fitted on the two reciprocating lead screws and are fixedly connected to the flat push plate. Two reciprocating lead screws are supported side by side on the frame. One end of each reciprocating lead screw extends out of the frame and is equipped with a sprocket at the rear end. The sprockets are connected by a chain to form a transmission chain. One of the reciprocating lead screws is connected to a servo motor.

[0011] The frame is equipped with a tensioning wheel for tensioning the chain.

[0012] It also includes a rear guard plate and a front guard plate. The rear guard plate is flush with the rear side baffle and fixed on the frame. The front guard plate is fixed on a flat plate, and one side of the flat plate is connected to the nut seat of the drive device.

[0013] There are notches between the rear guard plate and the rear side baffle, and between the flat plate and the push plate, to allow the book block translation lever to pass through.

[0014] The upper middle part of the front guard plate has a material discharge groove that protrudes outward for easy material discharge.

[0015] This invention facilitates the transport of book blocks through a book block conveying mechanism, improving conveying efficiency. It also includes a photoelectric switch to detect excessive book block height. When book blocks are aligned correctly, the photoelectric switch detects excessively tall page stops, sending a signal to the controller. The controller then stops the book block conveying mechanism and triggers an alarm, preventing defective products from flowing into subsequent stages and thus improving the yield rate. This utility model features an adjustable-spacing side plate, which facilitates the production of book blocks of different thicknesses without disassembly and assembly. The adjustment can be made directly through the drive device, which is quick and convenient, reduces equipment downtime, and improves production efficiency. This invention does not require different sized channels, resulting in low equipment cost. Attached Figure Description

[0016] Figure 1 This is a side view of the present invention; Figure 2 The three-dimensional representation of this utility model Figure 1 ; Figure 3 The three-dimensional representation of this utility model Figure 2 ; Figure 4 The three-dimensional representation of this utility model Figure 3 ; Figure 5 for Figure 4 A magnified view of a portion of the image; Detailed Implementation

[0017] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] like Figure 1-2As shown, the alignment device of this utility model includes a book core alignment mechanism composed of a vibrating base plate 1, a rear baffle 2, and a front baffle 3. The book core conveying mechanism and the detection mechanism are also included. One end of the vibrating base plate 1 is connected to the frame 10 via an elastic element 7, and the other end is fixedly connected to the frame 10 via two spring pieces 8. The elastic element 7 is a metal rubber shock absorber. There is a vibrating motor 14 under the vibrating base plate 1. The vibrating motor 14 drives the vibrating base plate 1 to vibrate. This is the prior art and is not the focus of this utility model. It is sufficient to make the vibrating base plate 1 vibrate. The rear baffle 2 is fixed to the vibrating base plate 1 and is perpendicular to the vibrating base plate 1. The front baffle 3 is floatingly supported on the vibrating base plate 1. The front baffle 3 can be adjusted by the push plate 4 and the drive device to move closer to or further away from the rear baffle 2. The book core conveying mechanism includes a chain conveyor and multiple levers. The chain conveyor includes a chain frame 20 and a conveying chain. The conveying chain is mounted on the chain frame 20 via sprockets. One sprocket is connected to a drive motor. Multiple levers are mounted on the conveying chain at equal intervals. The distance between two adjacent levers is greater than the height of the book core. The book core is located between two levers during conveying. The levers are perpendicular to the conveying direction of the book core. The detection mechanism includes a photoelectric switch 19 for detecting whether the book core is too high. The photoelectric switch 19 is fixed to the frame 10 by a mounting device. The alignment device also includes a controller for receiving the photoelectric switch signal and controlling the chain conveyor and the vibrating motor. The controller is a PLC controller.

[0019] Furthermore, a rear guard plate 14 is fixed on the frame 10, which is flush with the rear side baffle 2. Opposite to the rear guard plate 14 is a front guard plate 15, which is fixed on a flat plate 16. One side of the flat plate 16 is connected to the thread nut seat 12 of the drive device. There are notches 21 between the rear guard plate 14 and the rear side baffle 2, and between the flat plate 16 and the push plate 4, to allow the book block translation lever to pass through. The upper middle part of the front guard plate 15 has a feeding groove 17 that facilitates feeding.

[0020] like Figure 3-5As shown, the front baffle 3 includes a vertical plate 31 and a horizontal plate 32 connected to the lower end of the vertical plate. The vertical plate 31 is parallel to the rear baffle 2. The horizontal plate 32 is provided with multiple guide holes 33, which are arranged side by side along the length of the vibrating base plate 1. The guide holes 33 are stepped holes, including a large hole at the upper part and a small hole at the lower part. One side of the push plate 4 is bent downward to be flush with the front end face of the vertical plate 31 of the front baffle 3, and the other side is connected to the drive device. The push plate 4 is provided with guide posts 5 corresponding to the guide holes 33 one by one. The guide posts 5 are fitted with a sleeve. There is a spring 6, a guide post 5 with a clearance fit between the small hole of the stepped hole and the large hole of the stepped hole. The upper end of the spring 6 abuts against the lower end face of the flat push plate 4 and the lower end abuts against the stepped surface inside the stepped hole. There is a gap between the guide post 5 and the vibrating base plate 1 to avoid mutual interference during vibration. When the driving device drives the flat push plate 4 to move back and forth, the front baffle 3 moves back and forth under the drive of the guide post 5 and the spring 6 on the flat push plate 4. After moving into place, the guide post 5 and the spring 6 are installed in the corresponding guide hole, which can prevent the front baffle 3 from moving too much in the forward, backward and left and right directions.

[0021] like Figure 4-5 As shown, the drive device includes two reciprocating lead screws 9 and a servo motor. The two reciprocating lead screws 9 are supported side by side on the frame 10. One end of each reciprocating lead screw 9 extends out of the frame and is equipped with a sprocket 11. The sprocket 11 is connected by a chain to form a transmission chain. One of the reciprocating lead screws 9 is connected to the servo motor. A lead screw nut 12 is fitted on both reciprocating lead screws 9. The lead screw nut 12 is fixedly connected to the flat push plate 4. Furthermore, the frame 10 is provided with a tensioning wheel 13 for tensioning the chain.

Claims

1. A book block alignment device for perfect binding lines, characterized in that: This includes a book block alignment mechanism, a book block conveying mechanism, and a testing mechanism; The book core vibration mechanism includes a vibration base plate (1), a rear baffle (2), and a front baffle (3); The rear baffle (2) is perpendicular to the vibrating base plate (1), and the rear baffle (2) is fixed on the vibrating base plate (1); The front baffle (3) is floatingly supported on the vibrating base plate (1) and can move closer to or further away from the rear baffle (2) along with the push plate (4) and the driving device; The book block conveying mechanism includes a chain conveyor and multiple levers. The multiple levers are mounted on the chain conveyor at equal intervals. The distance between two adjacent levers is greater than the height of the book block. The levers are perpendicular to the book block conveying direction. The detection mechanism includes a photoelectric switch (19) for detecting whether the book core is too high; It also includes a controller for receiving photoelectric switch signals and controlling the chain conveyor and vibrating motor.

2. The book block alignment device for perfect binding lines according to claim 1, characterized in that: The chain conveyor includes a chain frame (20) and a conveyor chain. The conveyor chain is mounted on the chain frame (20) via sprockets, one of which is connected to a drive motor.

3. A book block alignment device for perfect binding lines according to claim 1 or 2, characterized in that: The front baffle (3) includes a vertical plate (31) and a horizontal plate (32) connected to the lower end of the vertical plate. The vertical plate (31) is parallel to the rear baffle (2). The horizontal plate (32) is provided with a plurality of guide holes (33). The plurality of guide holes (33) are arranged side by side along the length direction of the vibrating base plate (1). The flat push plate (4) is bent downward on one side to be flush with the upright plate (31) of the front baffle (3), and the other side is connected to the drive device. The flat push plate (4) is provided with guide posts (5) that correspond one-to-one with the guide through holes (33), and the guide posts (5) are fitted with springs (6).

4. A book block alignment device for perfect binding lines according to claim 3, characterized in that: The guide through hole (33) is a stepped hole, including a large hole at the top and a small hole at the bottom. The guide post (5) is in clearance fit with the small hole of the stepped hole, and the spring (6) is in clearance fit with the large hole of the stepped hole. The upper end of the spring (6) abuts against the lower end face of the push plate (4), and the lower end abuts against the stepped surface inside the stepped hole.

5. A book block alignment device for perfect binding lines according to claim 1, characterized in that: One end of the vibrating base plate (1) is connected to the frame (10) via an elastic element (7), and the other end is fixedly connected to the frame (10) via a spring piece (8). A vibrating motor (18) is installed under the vibrating base plate (1).

6. A book block alignment device for perfect binding lines according to claim 1, characterized in that: The drive device includes two reciprocating lead screws (9) and a servo motor. The two reciprocating lead screws (9) are fitted with lead screw nuts (12), and the lead screw nuts (12) are fixedly connected to the flat push plate (4). Two reciprocating lead screws (9) are supported side by side on the frame (10). One end of each reciprocating lead screw (9) extends out of the frame and is equipped with a sprocket (11). The sprocket (11) is connected by a chain to form a transmission chain. One of the reciprocating lead screws (9) is connected to a servo motor.

7. A book block alignment device for perfect binding lines according to claim 6, characterized in that: The frame (10) is provided with a tensioning wheel (13) for tensioning the chain.

8. A book block alignment device for perfect binding lines according to any one of claims 1-2 and 4-7, characterized in that: It also includes a rear guard plate (14) and a front guard plate (15). The rear guard plate (14) is flush with the rear side baffle (2) and fixed on the frame (10). The front guard plate (15) is fixed on the plate (16). One side of the plate (16) is connected to the nut seat (12) of the drive device.

9. A book block alignment device for perfect binding lines according to claim 8, characterized in that: There are notches (21) between the rear guard plate (14) and the rear side baffle (2), and between the flat plate (16) and the push plate (4) to allow the book block translation lever to pass through.

10. A book block alignment device for perfect binding lines according to claim 8, characterized in that: The upper middle part of the front guard plate (15) has a material discharge groove (17) that facilitates material discharge.

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