A book block acceleration device for a high-speed roller type automatic page aligning machine and the page aligning machine

Abstract

The present invention discloses a book block acceleration device and a collator for a high-speed roller-type automatic collator, including a base body and a frame, including a sheet gripping device, a conveying channel and a book block acceleration device. Two speed reducers are sleeved on the base body, and belt pulleys are sleeved on the input shaft ends of the two speed reducers. The belt pulleys are connected to a sheet gripping main shaft through a belt drive. Cranks are fixedly connected to the output shaft ends of the two speed reducers, the other ends of the cranks are movably connected to connecting plates, and a pressing block is vertically penetrated through the connecting plates. The sheet gripping device includes a sheet gripping main shaft, a sheet gripping mechanism, a sheet feeding belt and an acceleration hopper. The sheet gripping main shaft is rotationally connected to the frame, and the sheet feeding belt is frictionally connected to the sheet gripping main shaft. The present invention greatly reduces various impacts generated during high-speed sheet feeding through the book block acceleration device; the falling book block will have a certain horizontal relative speed, which can cooperate with the book pushing rod to achieve a good effect of accelerating and conveying.

Description

Technical Field

[0001] The present invention relates to the technical field of book collating machines, and particularly to a book block acceleration device for a high-speed roller automatic collating machine and a collating machine thereof. Background Art

[0002] A roller automatic collating machine is a professional post-press processing device that stacks single sheets or book blocks completed by previous processes into a bound book core in page number order through a sheet-picking roller mechanism. Compared with other collating methods, the roller collating machine has a compact structure, stable operation, and high production efficiency, and is the mainstream of collating machines in the current post-press market; the stacking and collating working principle of the roller collating machine is as Figure 1 shown. First, the book blocks 105 to be collated are stacked in the corresponding stacking hoppers 104 at each station in page number order. A roller sheet-picking mechanism is installed under each station. When the machine runs, the sheet-picking mechanism picks out the bottommost book block 105 of the book blocks to be collated and places it on the first conveying channel 102. Immediately afterwards, the first pusher bar 103 pushes the book block on the first conveying channel 102 to move forward along the conveying chain 101 into the next station. The sheet-picking mechanism at the next station performs the same sheet-picking and feeding action to stack the next book block 105 to be collated on the previous book block; after passing through all stations in this way, a bound book core 106 is stacked.

[0003] And the specific structure of the current roller collating machine is as Figure 2 shown. Its specific working process includes five stages: sheet suction, page separation, sheet picking, sheet dropping, and conveying; the sheet suction stage is a process of sucking and pulling down the bottommost book block from the storage page table by a swingable suction nozzle with adsorption ability; the page separation stage is synchronized with the sheet suction stage. When the suction nozzle sucks the lower swing of the book block 204 to be collated, the page separation hook is lifted in the opposite direction of the movement of the suction nozzle, just passing by the sucked book block 204 to be collated, and then swings to the highest point to lift the stack of book blocks 201 to be collated on the storage page table, thus avoiding the double sheets being brought down by sticking; the sheet picking stage is that after the suction nozzle sucks the sheet and swings to the lowest point, it releases the book block 204 to be collated, and at the same time, the forward-rotating sheet-picking wheel 202 drives the sheet-picking claws to clamp the book block 204 to be collated and continue to make a circular motion; the sheet dropping stage is that when the sheet-picking claws clamp the book block 204 to be collated and move above the second conveying channel 203, they gradually release the book block 204 to be collated, and the book block 204 to be collated falls into the second conveying channel 203; the conveying stage is that after the book block 204 to be collated falls into the second conveying channel 203, it moves along the second conveying channel 203 under the push of the second pusher bar 205.

[0004] However, due to structural limitations, existing collating machines can only be applied to environments with low operating speeds. When the collating machine operates in a high-speed operating environment, such as when the operating speed is greater than 10,000 c / h, when the book block falls into the conveying channel as the picking wheel rotates at high speed, it will inevitably collide with the conveying channel. Especially when the paper of the book block is thick and heavy, there will even be phenomena such as the book block rebounding and skewing. Seriously, it will even cause the blockage of the conveying channel due to the flipping of the book block; when the paper of the book block is thin and light, especially when it is a single sheet of paper, when the picking wheel drops the book block at high speed, due to air resistance, the dropped book block will skew or even float up so that it cannot fall into the designated position; even if the book block drops accurately, because the traveling speed of the book block in the conveying channel is zero, and the following book pusher will hit the book block at high speed, which may cause the book block to skew or even fly off, making the book core conveying unsmooth. Seriously, it will knock over the book block and block the conveying channel, resulting in a very high failure rate of the high-speed collating machine and being unfavorable for production.

[0005] To solve the above problems, we made improvements and proposed a book block acceleration device for a high-speed roller type automatic collating machine and its collating machine. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] The present invention provides a book block acceleration device for a high-speed roller type automatic collating machine, including a seat body and a frame. The seat body is fixedly connected to the frame. Two reduction boxes are sleeved on the seat body. Belt wheels are sleeved on the input shaft ends of the two reduction boxes. The belt wheels are connected to a picking main shaft through a belt drive; crank shafts are fixedly connected to the output shaft ends of the two reduction boxes. The other ends of the crank shafts are movably connected to a connecting plate, and a pressing block is vertically penetrated through the connecting plate.

[0008] As a preferred technical solution of the present invention, three pressing blocks are provided, and elastic buffer members are provided between the three pressing blocks and the connecting plate.

[0009] As a preferred technical solution of the present invention, a tray is arranged below the seat body, and the tray is fixedly connected to the frame.

[0010] As a preferred technical solution of the present invention, three groups of rollers are sleeved on the front edge of the tray, and the three groups of rollers are respectively oppositely abutted against the three pressing blocks that swing to the lowest position.

[0011] A high-speed roller type automatic page aligning machine includes a page gripping device, a conveying channel and a book block accelerating device. The page gripping device includes a page gripping main shaft, a page gripping mechanism, a book block conveying belt and an accelerating hopper. The page gripping main shaft is rotationally connected to a machine frame. The page gripping mechanism grips a book block. The book block conveying belt is frictionally connected to the page gripping main shaft. The accelerating hopper is arranged at the end of the book block conveying belt. The book block accelerating device is arranged at the end of the book block conveying belt and is located above the conveying channel.

[0012] As a preferred technical solution of the present invention, the conveying channel includes an inclined bottom plate and a flat bottom plate, and a lever for bringing the book block from the previous working station is arranged between the inclined bottom plate and the flat bottom plate.

[0013] The beneficial effects of the present invention are as follows:

[0014] First, the book block accelerating device of the high-speed roller type automatic page aligning machine and the page aligning machine greatly reduce various impacts generated by the book block during high-speed book block feeding through the book block accelerating device.

[0015] Second, in the present invention, the book block first falls into the accelerating hopper, and after passing through a book block accelerating link in the middle, it then falls into the conveying channel, reducing the drop height of each book block feeding.

[0016] Third, the falling book block will have a certain horizontal relative speed, which can cooperate with the book pushing rod to achieve a good effect of accelerating and conveying. Description of the Drawings

[0017] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0018] Figure 1 is a schematic diagram of the working principle of the existing roller type page aligning machine;

[0019] Figure 2 is a schematic diagram of the structure of the existing roller type page aligning machine;

[0020] Figure 3 is a schematic diagram of the structure of the book block accelerating device of a high-speed roller type automatic page aligning machine of the present invention;

[0021] Figure 4 is a schematic diagram of the working principle of a high-speed roller type automatic page aligning machine of the present invention;

[0022] In the figure: 101, conveying chain; 102, first conveying channel; 103, first book pushing rod; 104, book stacking hopper; 105, book block to be collated; 106, bound book core; 201, stack of book blocks to be collated; 202, sheet gripper wheel; 203, second conveying channel; 204, book block being collated; 205, second book pushing rod; 301, seat body; 302, reduction gearbox; 303, belt pulley; 304, crank; 305, connecting plate; 306, pressing block; 307, tray; 308, roller; 309, elastic buffer; 401, frame; 402, book block acceleration device; 403, sheet gripper main shaft; 404, sheet gripper mechanism; 405, book block feeding belt; 406, acceleration hopper; 407, inclined bottom plate; 408, flat bottom plate; 409, pushing rod; 410, book block. Detailed implementation mode

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Embodiment: As Figure 3 and Figure 4 shown, a book block acceleration device of a high-speed roller type automatic collator includes a seat body 301 and a frame 401. The seat body 301 is fixedly connected to the frame 401. Two reduction gearboxes 302 are sleeved on the seat body 301. Belt pulleys 303 are sleeved on the input shaft ends of the two reduction gearboxes 302. The belt pulley 303 is connected to a sheet gripper main shaft 403 through a belt drive. Cranks 304 are fixedly connected to the output shaft ends of the two reduction gearboxes 302. The other ends of the cranks 304 are movably connected to a connecting plate 305. A pressing block 306 is vertically penetrated through the connecting plate 305.

[0025] There are three pressing blocks 306, and elastic buffers 309 are provided between each of the three pressing blocks 306 and the connecting plate 305. A tray 307 is arranged below the seat body 301. The tray 307 is fixedly connected to the frame 401. Three groups of rollers 308 are sleeved on the front edge of the tray 307. The three groups of rollers 308 are respectively opposite to and in contact with the three pressing blocks 306 that swing to the lowest position.

[0026] A high-speed roller type automatic page aligning machine, comprising a sheet picking device, a conveying channel and a book block accelerating device 402. The sheet picking device includes a sheet picking main shaft 403, a sheet picking mechanism 404, a sheet feeding belt 405 and an accelerating hopper 406. The sheet picking main shaft 403 is rotationally connected to a frame 401. The sheet picking mechanism 404 grabs a book block 410. The sheet feeding belt 405 is frictionally connected to the sheet picking main shaft 403. The accelerating hopper 406 is arranged at the end of the sheet feeding belt 405. The book block accelerating device is arranged at the end of the sheet feeding belt 405 and is located above the conveying channel. The conveying channel includes an inclined bottom plate 407 and a flat bottom plate 408. A lever 409 for bringing the book block 410 from the previous working station is arranged between the inclined bottom plate 407 and the flat bottom plate 408.

[0027] Working principle: The sheet picking main shaft 403 of the sheet picking device is the power source of the book block accelerating device of the present invention. When the sheet picking main shaft 403 rotates, it drives the sheet picking mechanism 404 to grab a book block 410 and send it into the sheet feeding belt 405. The book block 410 is conveyed by the sheet feeding belt 405 to a tray 307 and then slides into the accelerating hopper 406. At this time, a crank 304 drives three pressing blocks 306 on a connecting plate 305 to rotate to the lowest position, and just clamp the book block 410 together with three groups of rollers 308 below the book block 410 and quickly throw it forward into the channel, and stack it with the book block 410 brought by the lever 409 from the previous working station and convey it forward together to complete the work of collating and binding a book core.

[0028] Obviously, the high-speed roller type automatic page aligning machine of the present invention relies on the sheet feeding belt 405 to smoothly send books to the accelerating hopper 406, overcoming various drawbacks (such as: book block rebound, skew, curl, etc. causing blockage, etc.) caused by the free and unconstrained falling of the book block 410 into the channel in the traditional page aligning machine. Moreover, the book block accelerating device of the high-speed roller type automatic page aligning machine of the present invention allows the book block 410 to fall into the accelerating hopper 406 and then go through a book block 410 accelerating link before falling into the conveying channel, and perfectly synchronously cooperate with the lever 409 to convey the book block 410 forward.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0030] In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A book block acceleration device for a high-speed roller type automatic page aligning machine, comprising a base body (301) and a frame (401), characterized in that, The seat body (301) is fixedly connected to the frame (401). Two speed reducers (302) are sleeved on the seat body (301). Belt pulleys (303) are sleeved on the input shaft ends of the two speed reducers (302). The belt pulleys (303) are connected to the sheet-picking main shaft (403) through belt transmission. Cranks (304) are fixedly connected to the output shaft ends of the two speed reducers (302). The other ends of the cranks (304) are movably connected to connecting plates (305). Pressure blocks (306) are vertically penetrated through the connecting plates (305). Wherein, a tray (307) is arranged below the seat body (301). The tray (307) is fixedly connected to the frame (401). Three groups of rollers (308) are sleeved on the front edge of the tray (307). The three groups of rollers (308) are respectively and directly opposite to and in contact with the three pressure blocks (306) swung to the lowest position.

2. The book block acceleration device of a high-speed roller type automatic page aligning machine according to claim 1, characterized in that, Three pressure blocks (306) are provided. Elastic buffer members (309) are arranged between the three pressure blocks (306) and the connecting plates (305).

3. A high-speed roller type automatic page aligning machine, comprising a sheet gripping device, a conveying channel, and a signature accelerating device (402) as described in claim 1, characterized in that, The sheet-picking device includes a sheet-picking main shaft (403), a sheet-picking mechanism (404), a sheet-sending belt (405) and an accelerating hopper (406). The sheet-picking main shaft (403) is rotatably connected to the frame (401). The sheet-picking mechanism (404) grabs a book block (410). The sheet-sending belt (405) is frictionally connected to the sheet-picking main shaft (403). The accelerating hopper (406) is arranged at the end of the sheet-sending belt (405). The book block accelerating device is arranged at the end of the sheet-sending belt (405) and is located above the conveying channel.

4. The high-speed roller type automatic page aligning machine according to claim 3, characterized in that, The conveying channel includes an inclined bottom plate (407) and a flat bottom plate (408). A lever (409) for bringing the book block (410) from the previous working station is arranged between the inclined bottom plate (407) and the flat bottom plate (408).

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