Conveying channel with chain wheel overload protection device

Abstract

The utility model relates to the technical field of printing equipment, in particular to a conveying channel with a chain wheel overload protection device, which comprises a conveying channel, the conveying channel consists of an arc-shaped plate and end plates arranged at two ends of the arc-shaped plate, a chain wheel is arranged on the conveying channel, a chain is arranged on the chain wheel, and a paper pushing rod is arranged on the chain. A baffle is arranged beside the chain, and a chain wheel overload protection device is arranged on the chain wheel. According to the conveying channel, the slope design is achieved through the arc-shaped plates, automatic production of books of special specifications such as octobooks or transverse books is completed, paper is prevented from being detained or disengaged from the end plates, the blocking risk is reduced, the paper conveying continuity is improved, and when the conveying channel suddenly stops, the slope structure can prevent the paper from continuously moving forwards due to inertia; according to the chain wheel overload protection device, chain deformation caused by overload is reduced, the maintenance cost is reduced, the safety is improved, and the equipment failure rate caused by blockage or chain wheel overload is reduced.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology. Background Technology

[0002] In the book printing process, with the improvement of automation, paper is often transported through fully automated conveyor channels. Existing paper conveyor channels are mostly straight-line connected channels, which can only be used for the production of regular books. For special-sized books such as octavo or landscape books, the paper needs to be manually rotated 90 degrees during the production process. The current conveyor channels cannot realize the automated production operation of this step. In addition, when using chain drive to transport paper, sprocket overload occurs frequently. Sprocket overload not only leads to equipment failure, but also shortens the service life of the equipment, and may even cause safety accidents. Utility Model Content

[0003] To overcome the problems of paper clogging and stagnation in traditional conveyor channels, the need for manual operation, and the impact of sprocket overload on equipment failure, this utility model provides a conveyor channel with a sprocket overload protection device.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A conveying channel with a sprocket overload protection device is provided. The conveying channel is inclined inward and has an arc plate in the middle and end plates at both ends. The end plates are installed at an incline on the side connected to the arc plate, and the other side of the end plate is horizontal. A sprocket is provided on the conveying channel and connected to a motor. A paper pusher is installed on the chain. A baffle is provided on one side of the chain. The sprocket is provided with a sprocket overload protection device.

[0006] The conveying channel is equipped with guide rails, and the guide rails have slots, with the chain located inside the slots.

[0007] Preferably, there are multiple paper pushers that are evenly distributed on the chain.

[0008] Preferably, the sprocket is connected to the motor via a sprocket shaft. The sprocket overload protection device includes a fixed seat that is keyed to the sprocket shaft. The fixed seat has a groove and is located adjacent to the sprocket. The sprocket has a through hole corresponding to the position of the groove. A ball is installed in the through hole. A flange sleeve is provided at the other end of the sprocket, and a spring is connected to the flange sleeve.

[0009] Preferably, there are two grooves, and the two grooves are at different distances from the center of the fixing seat.

[0010] Preferably, the sprocket protection device further includes a proximity switch, which is located at the front end of the flange sleeve.

[0011] The beneficial effects of this utility model are as follows:

[0012] The conveyor channel of this invention features a slope design achieved through an arc-shaped plate, enabling automated production of special-sized books such as octavo or landscape formats. In the event of a sudden stop in the conveyor channel, the slope structure prevents the paper from continuing to move forward due to inertia, keeping it in place and preventing it from scattering or becoming uneven. Furthermore, the inward tilt of the conveyor channel, influenced by centrifugal force, makes it less likely for the paper to detach from the channel, reducing the risk of blockage and improving the continuity of paper transport. The sprocket overload protection device of this invention reduces chain deformation caused by overload, lowers maintenance costs, improves safety, and reduces the equipment failure rate caused by blockage or sprocket overload. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0016] In the diagram, 1. Conveying channel; 2. Chain; 3. Paper pusher; 4. Guide rail; 5. Baffle; 6. Support column; 7. Sprocket overload protection device; 701. Sprocket shaft; 702. Spring; 703. Fixing seat; 704. Groove; 705. Through hole; 706. Ball bearing; 707. Sprocket; 708. Flange sleeve; 709. Proximity switch; 8. Motor; 9. Arc plate; 10. End plate; 11. Horizontal book. Detailed Implementation

[0017] like Figure 1 , 2 As shown, this utility model embodiment provides a conveying channel with a sprocket overload protection device. The conveying channel is inclined inward so that the paper will not fall out of the conveying channel due to centrifugal force during transportation. The conveying channel 1 consists of an arc plate 9 and end plates 10 set at both ends of the arc plate 9. The end plates are inclined on the side connected to the arc plate, and the other side is set horizontally. The conveying channel is S-shaped. If the conveying channel stops suddenly during operation, the slope design of the conveying channel through the arc plate will prevent the paper from moving forward due to inertia, so that it stays in place and avoids the paper from scattering or becoming uneven.

[0018] A sprocket 707 is installed on the conveying channel 1. The sprocket 707 is connected to the motor 8 through the sprocket shaft 701. A chain 2 is installed on the sprocket 707. Paper pushers 3 are installed on the chain 2. There are multiple paper pushers 3 and they are evenly distributed. A baffle 5 is installed next to the chain 2. The baffle 5 is used to support the bottom of the paper. The chain 2 forms a closed loop. Inside the loop, it is divided into two reverse running sections by the baffle 5 to form a bidirectional transmission path. A sprocket overload protection device 7 is installed on the sprocket 707. The conveying channel 1 is supported on the ground by the support column 6.

[0019] The conveying channel 1 is also equipped with a guide rail 4, which has a slot. The chain 2 is partially placed in the slot, that is, the chain 2 passes through the guide rail 4 for installation. The guide rail 4 restricts part of the chain 2's degree of freedom, ensuring that the chain 2 runs along the predetermined path and preventing deviation.

[0020] like Figure 3 As shown, the sprocket overload protection device 7 includes a fixed seat 703 keyed to the sprocket shaft 701. The fixed seat 703 has two grooves 704, which are at different distances from the center of the fixed seat 703. The fixed seat 703 is located adjacent to the sprocket 707. The sprocket 707 has a through hole 705 corresponding to the position of the groove 704. In this embodiment, the groove 704 is hemispherical and the through hole 705 is circular. A ball bearing 706 is installed in the through hole 705. A flange sleeve 708 is installed at the other end of the sprocket 707. The flange sleeve 708 is in close contact with the sprocket 707 and the fixed seat 703. A spring 702 is installed between the flange sleeve 708 and the end of the sprocket shaft 701. In this embodiment, the spring 702 is a disc spring. The spring 702 acts as a clamping force. The flange sleeve 708 is movably connected to the sprocket shaft 701.

[0021] This utility model embodiment can automate the production of books with special specifications such as octavo or 16mo horizontal format. The binding direction of both octavo and 16mo horizontal format books is along the short side. In this embodiment, if the size of the octavo book is 315mm×440mm and the size of the 16mo horizontal format book is 220mm×315mm, then the binding direction of the octavo book is along the 315mm side and the binding direction of the 16mo horizontal format book is along the 220mm side.

[0022] Working principle:

[0023] Motor 8 drives sprocket 707 to rotate, which in turn drives chain 2 and the paper pusher 3 on chain 2 to circulate. After the paper enters the conveying channel 1 from end plate 10, it is driven by the paper pusher 3 to move along the arc plate 9 to the outlet of the conveying channel 1. When the actual working conditions exceed the design limit, sprocket 707 may be overloaded, which may cause material damage, mechanical jamming, lubrication failure and other faults, resulting in sprocket failure and jamming. However, motor 8 drives sprocket shaft 701 and fixed seat 703 to continue rotating. The groove 704 and through hole 705 are misaligned, causing the ball 706 to move out of the groove 704. 4. The ball 706 pops out from the through hole 705, pushing the flange sleeve 708. The flange sleeve 708 hits the proximity switch 709, and the proximity switch 709 controls the motor 8 to stop running. Because the distance between the two grooves 704 and the center of the fixed seat 703 is different, after the overload occurs, the ball 706 will not return to the groove 704 before the flange sleeve 708 hits the proximity switch 709. After the overload fault of the sprocket 707 is eliminated, the ball 706 is manually reset by the staff. The flange sleeve 708 leaves the proximity switch 709 under the action of the spring 702 and comes close to the sprocket 707.

[0024] This utility model has been described through embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, modifications can be made to these features and embodiments to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A conveyor channel with a sprocket overload protection device, characterized in that, The conveying channel (1) is inclined inward and has an arc plate (9) in the middle and end plates (10) at both ends. The end plates (10) are installed at an incline on the side connected to the arc plate (9), and the other side of the end plates (10) is set horizontally. A sprocket (707) is installed on the conveying channel (1), and the sprocket (707) is connected to the motor (8). A paper pusher (3) is installed on the chain (2), and a baffle (5) is installed on one side of the chain (2). A sprocket overload protection device (7) is installed on the sprocket (707).

2. The conveyor channel with sprocket overload protection device according to claim 1, characterized in that, The conveying channel (1) is provided with a guide rail (4), and the guide rail (4) is provided with a slot, and the chain (2) is located in the slot.

3. The conveyor channel with sprocket overload protection device according to claim 1, characterized in that, The pusher rods (3) are multiple and evenly distributed on the chain (2).

4. The conveyor channel with sprocket overload protection device according to claim 1, characterized in that, The sprocket (707) is connected to the motor (8) via the sprocket shaft (701). The sprocket overload protection device (7) includes a fixed seat (703) keyed to the sprocket shaft (701). The fixed seat (703) is provided with a groove (704). The fixed seat (703) is located close to the sprocket (707). The sprocket is provided with a through hole (705) corresponding to the position of the groove (704). A ball (706) is provided in the through hole (705). A flange sleeve (708) is provided at the other end of the sprocket. A spring (702) is connected to the flange sleeve (708).

5. The conveyor channel with sprocket overload protection device according to claim 4, characterized in that, There are two grooves (704), and the distances between the two grooves (704) and the center of the fixing seat (703) are different.

6. The conveyor channel with sprocket overload protection device according to claim 4, characterized in that, The sprocket overload protection device (7) also includes a proximity switch (709), which is located at the front end of the flange sleeve (708).

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