A cover positioning mechanism

Abstract

The utility model discloses a cover positioning mechanism, apply in the field of printing and binding equipment, including base, the surface of base is hinged with motor, the output of motor extends to the inside of base and fixedly has first gear, the surface of first gear is engaged with two second gears, the axle of second gear fixedly has the pivot, the inner wall rotation sleeve of pivot and base, the utility model discloses through motor rotation makes first gear drive two second gears rotation, and second gear rotation drives the pivot to make the arm rotation, and the arm rotation makes the relative movement of support plate and left and right positioning block, and the book clip and book core positioning, can accurate positioning every book clip's book core with the upper seal synchronization, and the stable conveyance, and the design is specially for the quick operation, compared with traditional support seal mechanism, overcomes the book clip and the out of sync phenomenon of upper seal due to chain tightness error, reaches the maximum production capacity of customer.

Description

Technical Field

[0001] This utility model relates to the field of printing and binding equipment, and in particular to a cover positioning mechanism. Background Technology

[0002] Perfect binding, as an efficient and sturdy bookbinding method, is widely used in the post-processing of various printed materials such as books, magazines, and albums. The positioning mechanism is the key equipment to achieve precise binding between the book block and the cover, and its performance directly affects the quality and production efficiency of the bound products.

[0003] A search of Chinese patents revealed publication number CN215041554U, which discloses a quick-positioning and adjusting device for the cover of a perfect binding machine. The device includes an upper sealing mechanism composed of an upper wall plate and a lower wall plate, which are set parallel to each other. Alignment holes are provided on both the upper and lower wall plates, and a slide rail guide shaft fixes the upper and lower wall plates together within these holes. A movable block is slidably connected to the slide rail guide shaft, and a rack guide shaft is also fixedly connected between the upper and lower wall plates. In this quick-positioning and adjusting device for the cover of a perfect binding machine, when the handwheel is turned, the gear shaft rotates on the rack guide shaft and moves axially on both the rack guide shaft and the slide rail guide shaft. Simultaneously, the page stop positioning plate moves, and a locking plate is fixed to the movable block. A locking handle is located within the locking plate, preventing axial movement of the movable block assembly. A long groove on the side of the page stop positioning plate serves as a cover positioning feature, facilitating the limiting of covers of different lengths and improving their adaptability.

[0004] Existing positioning mechanisms suffer from poor positioning accuracy. Current mechanisms primarily rely on chain drives to synchronize the transport of the book clip and the top cover. However, during frequent and prolonged engagement, chain wear is inevitable, leading to increased chain pitch and inconsistent chain tension. This tension error severely impacts transmission accuracy. Furthermore, the instability of chain drives causes a discrepancy between the book clip's movement speed and the top cover's transport speed, resulting in asynchrony. When the book clip and top cover are out of sync, the cover may become skewed upon contact with the book block, and the fit between them may be loose, significantly affecting the quality of the bound product. To ensure product quality, manufacturers are forced to reduce production speed to minimize quality issues caused by asynchrony, thus lowering production efficiency. To address these problems, we propose a cover positioning mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a cover positioning mechanism, which has the advantage of high positioning accuracy.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cover positioning mechanism, including a base, a motor bolted to the surface of the base, the output end of the motor extending into the interior of the base and fixedly sleeved with a first gear, two second gears meshing on the surface of the first gear, a rotating shaft fixedly sleeved at the axis of the second gear, the rotating shaft rotatably sleeved with the inner wall of the base, a support arm fixedly sleeved at one end of the rotating shaft, a fixed shaft fixedly sleeved on the inner wall of the support arm, a transmission cam fixedly sleeved on the surface of the fixed shaft, a positioning mechanism provided at the top of the support arm, a book pushing mechanism provided on the surface of the positioning mechanism, and a glue rolling mechanism provided on the surface of the base.

[0007] Using the above technical solution, the first gear drives the two second gears to rotate through the rotation of the motor. The rotation of the second gears drives the shaft to rotate the support arm. The rotation of the support arm causes the tray and the left and right positioning blocks to move relative to each other, positioning the book clips and book blocks. It can accurately position the book block of each book clip synchronously with the top cover, and the conveying is smooth. It is designed for high-speed operation. Compared with the traditional book clip and top cover mechanism, it overcomes the phenomenon of asynchronous movement of book clips and top cover caused by chain tension error, achieving maximum production capacity for customers.

[0008] The present invention is further configured such that: the positioning mechanism includes a support plate, the support plate is rotatably sleeved with the surface of a fixed shaft, a toothed rod is installed at the bottom of the support plate, a right positioning block is bolted to the surface of the toothed rod, a sector gear is installed at the bottom of the support plate, a first cam follower is installed at one end of the sector gear, and the first cam follower is slidably connected to the surface of the right transmission cam, a left positioning block is slidably connected to the inner wall of the support plate, a tension spring is provided between the left positioning block and the inner wall of the support plate, a connecting rod is hinged to the bottom of the left positioning block, a transmission rod is hinged to the other end of the connecting rod, and the transmission rod is rotatably connected to the bottom of the support plate, a second cam follower is installed at one end of the transmission rod, and the second cam follower is slidably connected to the surface of the left transmission cam.

[0009] The above technical solution uses a positioning mechanism to position the book clip.

[0010] The present invention is further configured such that: the book pushing mechanism includes a book pushing rod, the book pushing rod is slidably sleeved with the inner wall of the left positioning block, and a spring is provided between the book pushing rod and the left positioning block.

[0011] By adopting the above technical solution and setting up a book-pushing mechanism, it is easy to push the book clips onto the tray for positioning.

[0012] The present invention is further configured such that: the glue rolling mechanism includes a glue rolling cylinder, the glue rolling cylinder is hinged to the surface of the base, a first rotating block is rotatably connected to the bottom of the glue rolling cylinder, a screw is rotatably connected to the bottom of the first rotating block, a second rotating block is threadedly connected to the surface of the screw, a fixed rod is rotatably connected to the surface of the second rotating block, and the fixed rod is bolted to the surface of the base.

[0013] By adopting the above technical solution, the glue on the book block and cover is rolled by setting up a glue rolling mechanism, which makes the glue more uniform and improves the quality of perfect binding.

[0014] The present invention is further configured such that: two fixing blocks are bolted to the surface of the tray, a sliding rod is bolted between the fixing blocks, and the right positioning block is slidably sleeved with the surface of the sliding rod.

[0015] By adopting the above technical solution, a fixed block and a sliding rod are set to prevent the positioning block from shifting.

[0016] The present invention is further configured such that a rotating head is bolted to the bottom of the screw.

[0017] By adopting the above technical solution, a rotating head is provided to facilitate the rotation of the screw.

[0018] The present invention is further configured such that a counterweight wheel is fixedly sleeved at the other end of the rotating shaft.

[0019] By adopting the above technical solution and setting a counterweight wheel, the transmission process is made more stable, and the impact and vibration during movement are reduced.

[0020] In summary, this utility model has the following beneficial effects:

[0021] This invention uses a motor to rotate a first gear, which in turn drives two second gears to rotate. The rotation of the second gears drives a rotating shaft, which in turn rotates the support arm. The rotation of the support arm causes the support plate and the left and right positioning blocks to move relative to each other, thus positioning the book clips and book blocks. It can accurately position the book blocks of each book clip synchronously with the top cover, and the conveying is smooth. It is designed for high-speed operation. Compared with traditional book clip and top cover mechanisms, it overcomes the problem of asynchronous movement of book clips and top cover caused by chain tension errors, thereby maximizing the customer's production capacity. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural view of the present invention;

[0023] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0024] Figure 3 This is a three-dimensional structural view of the present invention;

[0025] Figure 4This is a three-dimensional structural view of the present invention;

[0026] Figure 5 This is a partial three-dimensional structural view of this utility model.

[0027] Reference numerals: 1. Base; 2. Motor; 3. First gear; 4. Second gear; 5. Rotating shaft; 6. Support arm; 7. Fixed shaft; 8. Transmission cam; 9. Counterweight wheel; 10. Support plate; 11. Gear rack; 12. Right positioning block; 13. Sector gear; 14. First cam follower; 15. Left positioning block; 16. Tension spring; 17. Connecting rod; 18. Transmission rod; 19. Second cam follower; 20. Book pusher; 21. Spring; 22. Glue roller; 23. First rotating block; 24. Screw; 25. Second rotating block; 26. Fixed rod; 27. Fixed block; 28. Slide rod; 29. ​​Rotating head. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example:

[0030] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A cover positioning mechanism includes a base 1, a motor 2 bolted to the surface of the base 1, the output end of the motor 2 extending into the interior of the base 1 and fixedly sleeved with a first gear 3, two second gears 4 meshing with the surface of the first gear 3, a rotating shaft 5 fixedly sleeved at the axis of the second gears 4, the rotating shaft 5 rotatably sleeved with the inner wall of the base 1, a support arm 6 fixedly sleeved at one end of the rotating shaft 5, a fixed shaft 7 fixedly sleeved on the inner wall of the support arm 6, a transmission cam 8 fixedly sleeved on the surface of the fixed shaft 7, and a positioning mechanism provided at the top of the support arm 6. The base 1 is equipped with a book-pushing mechanism and a glue-rolling mechanism. The rotation of the motor 2 causes the first gear 3 to drive the two second gears 4 to rotate. The rotation of the second gears 4 drives the rotating shaft 5 to rotate the support arm 6. The rotation of the support arm 6 causes the support plate 10 and the left and right positioning blocks 12 to move relative to each other, positioning the book clips and book blocks. It can accurately position the book block of each book clip synchronously with the top cover, and the conveying is smooth. It is designed for high-speed operation. Compared with the traditional book-carrying mechanism, it overcomes the phenomenon of asynchronous movement between the book clips and the top cover caused by chain tension error, achieving maximum production capacity for customers.

[0031] refer to Figure 4 and Figure 5The positioning mechanism includes a support plate 10, which is rotatably sleeved with the surface of a fixed shaft 7. A rack 11 is installed at the bottom of the support plate 10, and a right positioning block 12 is bolted to the surface of the rack 11. A sector gear 13 is installed at the bottom of the support plate 10, and a first cam follower 14 is installed at one end of the sector gear 13. The first cam follower 14 is slidably connected to the surface of the right transmission cam 8. A left positioning block 15 is slidably connected to the inner wall of the support plate 10. A tension spring 16 is provided between the left positioning block 15 and the inner wall of the support plate 10. A connecting rod 17 is hinged to the bottom of the left positioning block 15, and a transmission rod 18 is hinged to the other end of the connecting rod 17. The transmission rod 18 is rotatably connected to the bottom of the support plate 10. A second cam follower 19 is installed at one end of the transmission rod 18, and the second cam follower 19 is slidably connected to the surface of the left transmission cam 8. By setting up the positioning mechanism, the book clip is positioned.

[0032] refer to Figure 3 The book pushing mechanism includes a book pushing rod 20, which is slidably sleeved with the inner wall of the left positioning block 15. A spring 21 is provided between the book pushing rod 20 and the left positioning block 15. By setting the book pushing mechanism, it is easy to push the book clip onto the tray 10 for positioning.

[0033] refer to Figure 1 The glue-rolling mechanism includes a glue-rolling cylinder 22, which is hinged to the surface of the base 1. A first rotating block 23 is rotatably connected to the bottom of the glue-rolling cylinder 22. A screw 24 is rotatably connected to the bottom of the first rotating block 23. A second rotating block 25 is threadedly connected to the surface of the screw 24. A fixing rod 26 is rotatably connected to the surface of the second rotating block 25 and bolted to the surface of the base 1. By setting up the glue-rolling mechanism, the glue on the book block and the cover is rolled, making the glue more uniform and improving the quality of the perfect binding.

[0034] refer to Figure 1 Two fixing blocks 27 are bolted to the surface of the support plate 10, and a sliding rod 28 is bolted between the fixing blocks 27. The right positioning block 12 is slidably sleeved with the surface of the sliding rod 28. By setting the fixing blocks 27 and the sliding rod 28, the positioning block is prevented from shifting.

[0035] refer to Figure 1 and Figure 4 A rotating head 29 is bolted to the bottom of the screw 24, which facilitates the rotation of the screw 24.

[0036] refer to Figure 2 , Figure 3 and Figure 4 The other end of the rotating shaft 5 is fixedly sleeved with a counterweight wheel 9. By setting the counterweight wheel 9, the transmission process is made more stable and the impact and vibration during movement are reduced.

[0037] Brief description of the operation: The rotation of motor 2 drives the first gear 3 to rotate, which in turn drives the two second gears 4 to rotate synchronously. The rotation of the second gears 4 drives the rotating shaft 5 to rotate, which in turn drives the support arm 6 to rotate. The rotation of the support arm 6 drives the fixed shaft 7 to rotate, which in turn drives the support plate 10 to move up and down. The rotation of the fixed shaft 7 drives the two transmission cams 8 to rotate. The rotation of the right transmission cam 8 drives the first cam follower 14 to make the sector gear 13 swing back and forth. The swinging of the sector gear 13 drives the rack 11 to move the right positioning block 12 back and forth. The rotation of the left transmission cam 8 causes the second cam follower 19 to move the transmission rod 18. The movement of the transmission rod 18 drives the connecting rod 17 to move the left positioning block 15. The movement of the left positioning block 15 is reciprocated under the action of the tension spring 16, so that the left positioning block 15 and the right positioning block 12 move back and forth relative to each other or away from each other. This allows the left positioning block 15 and the right positioning block 12 to position the book clip and cover during the lifting process, thereby achieving the purpose of accurate positioning.

[0038] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A cover positioning mechanism, comprising a base (1), characterized in that, A motor (2) is bolted to the surface of the base (1). The output end of the motor (2) extends into the interior of the base (1) and is fixedly fitted with a first gear (3). Two second gears (4) mesh with the surface of the first gear (3). A rotating shaft (5) is fixedly fitted at the axis of the second gear (4). The rotating shaft (5) is rotatably fitted with the inner wall of the base (1). A support arm (6) is fixedly fitted at one end of the rotating shaft (5). A fixed shaft (7) is fixedly fitted on the inner wall of the support arm (6). A transmission cam (8) is fixedly fitted on the surface of the fixed shaft (7). A positioning mechanism is provided at the top of the support arm (6). A book pushing mechanism is provided on the surface of the positioning mechanism. A glue rolling mechanism is provided on the surface of the base (1).

2. The cover positioning mechanism according to claim 1, characterized in that, The positioning mechanism includes a support plate (10), which is rotatably sleeved with the surface of a fixed shaft (7). A rack (11) is installed at the bottom of the support plate (10), and a right positioning block (12) is bolted to the surface of the rack (11). A sector gear (13) is installed at the bottom of the support plate (10), and a first cam follower (14) is installed at one end of the sector gear (13). The first cam follower (14) is slidably connected to the surface of the right-side transmission cam (8). The inner wall of the support plate (10) A left positioning block (15) is slidably connected. A tension spring (16) is provided between the left positioning block (15) and the inner wall of the support plate (10). A connecting rod (17) is hinged to the bottom of the left positioning block (15). A transmission rod (18) is hinged to the other end of the connecting rod (17). The transmission rod (18) is rotatably connected to the bottom of the support plate (10). A second cam follower (19) is installed at one end of the transmission rod (18). The second cam follower (19) is slidably connected to the surface of the left transmission cam (8).

3. The cover positioning mechanism according to claim 2, characterized in that, The book pushing mechanism includes a book pushing rod (20), which is slidably sleeved with the inner wall of the left positioning block (15), and a spring (21) is provided between the book pushing rod (20) and the left positioning block (15).

4. The cover positioning mechanism according to claim 1, characterized in that, The glue rolling mechanism includes a glue rolling cylinder (22), which is hinged to the surface of the base (1). A first rotating block (23) is rotatably connected to the bottom of the glue rolling cylinder (22), and a screw (24) is rotatably connected to the bottom of the first rotating block (23). A second rotating block (25) is threadedly connected to the surface of the screw (24), and a fixing rod (26) is rotatably connected to the surface of the second rotating block (25). The fixing rod (26) is bolted to the surface of the base (1).

5. A cover positioning mechanism according to claim 2, characterized in that, Two fixing blocks (27) are bolted to the surface of the tray (10), and a sliding rod (28) is bolted between the fixing blocks (27), and the right positioning block (12) is slidably sleeved with the surface of the sliding rod (28).

6. A cover positioning mechanism according to claim 4, characterized in that, A rotating head (29) is bolted to the bottom of the screw (24).

7. A cover positioning mechanism according to claim 1, characterized in that, The other end of the rotating shaft (5) is fixedly sleeved with a counterweight wheel (9).

Images