Special staggered gathering platform of printing gathering machine

Abstract

The application provides a special misalignment collecting platform of a printing collating machine, which effectively solves the problems of poor misalignment effect, easy page missing, and disorder of multiple book pages in a book when a book is collected by an existing book collecting platform; the technical solution is that the platform comprises a workbench, the workbench is provided with a U-shaped frame, the U-shaped frame is provided with misalignment units on the front and back sides, and the U-shaped frame is provided with a gap on the side plate; the misalignment unit comprises a spline shaft, the spline shaft is provided with two spline barrels, two spiral blades are arranged between the two spline barrels, the edges of the spiral blades extend into the U-shaped frame cavity through the gap, the end of the spiral blade is fixed on the spline barrel, two spiral spaces are formed between the two spiral blades, and a plurality of elastic rods are arranged in one of the spiral spaces; the spline shaft is provided with an extension mechanism on one side; when the spline shaft drives the two spiral blades to rotate through the spline barrels, the edges of the book enter the spiral spaces formed by the two spiral blades, so that the book moves to the left.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing equipment, in particular to a special misalignment collecting platform of a printing collator. BACKGROUND

[0002] In the traditional equipment, as disclosed in the patent document CN203580378U, after the collating is completed, the book block is transported to the end of the collator by the conveying belt, and then the book block is pushed to the movable collecting table by the paper pusher, waiting for the next process. For the collation of books and calendars, separate binding is required in the later stage. In order to facilitate subsequent work, misalignment of the collected book blocks is required. In existing factories, a hydraulic cylinder or an air cylinder is usually used to drive the whole collecting platform to move back and forth, so that multiple book blocks are misaligned and collected. However, there are many obvious defects: first, during the back-and-forth movement of the platform, there is interference or friction between the last book block on the collecting platform and the book block to be pushed on the conveying belt, which causes the pages of the two book blocks in contact with each other to be disordered, and extra or missing pages are likely to occur during subsequent binding; second, during the back-and-forth movement of the platform, all the book blocks on the platform move back and forth with the platform, and due to inertia, the misalignment between the book blocks is easily aligned again, which greatly reduces the misalignment effect, especially for book blocks with thick and smooth pages, such as calendars; third, during the collating process, the edges of the book blocks in the same book are not completely aligned, and the existing collecting mechanism also lacks the function of arranging multiple book blocks in the same book, so that vibration arrangement is required in the later stage, which also needs to be improved to reduce the workload and improve the work efficiency; fourth, poor adaptability, the number of pages and the thickness of different printed books vary greatly, and the existing technology cannot flexibly cope with the collection of book blocks with different thicknesses, especially for book blocks with many pages and thick pages, after the collection is completed, the edges of multiple book blocks in a single book block are not aligned and have small misalignment, which seriously affects the quality of the later binding.

[0003] In the existing technology, the patent document CN205257443U discloses a book arranging machine collecting device, which increases a baffle 4 between the paper pusher and the collecting platform to solve the problem of misalignment caused by the interference and friction between the last book block on the platform and the book block to be collected on the conveying belt; and the patent document CN203600810U discloses a book block misalignment device, which uses a counting sensor to realize the misalignment between multiple book blocks. However, actual application proves that during the back-and-forth movement of the platform, the misalignment effect between multiple book blocks is greatly reduced due to the inertia of the book blocks themselves during the back-and-forth movement, and even there is no misalignment between the book blocks on the whole platform, so that the misalignment collecting function of the platform is invalid. Both of them cannot fundamentally solve the above problems.

[0004] The special staggered collecting platform of the printing and collating machine can collect the book blocks stably, arrange the single book block after collection, ensure the staggered effect of the multiple book blocks and the alignment of the edges of the multiple book block pages in the same book block, realize the staggered collecting in the relatively stable state, reduce the noise, improve the reliability and greatly improve the neatness of the book blocks. SUMMARY

[0005] In view of the above, in order to overcome the defects of the prior art, the special staggered collecting platform of the printing and collating machine is provided, which effectively solves the problems of poor staggered effect, easy page missing, and the unneatness of the multiple book block pages in the book block.

[0006] The technical solution is that the working table is provided with a U-shaped frame with an opening to the right, the U-shaped frame is provided with staggered units on the front and back sides, and the U-shaped frame side plate is provided with a clearance opening corresponding to the staggered units.

[0007] The staggered unit comprises a horizontal spline shaft, the spline shaft can be actively rotated, the spline shaft is arranged outside the U-shaped frame, two spline barrels are sleeved on the spline shaft, the spline barrel on the right side cannot move left and right, two spiral vanes are arranged between the two spline barrels, the edges of the spiral vanes extend into the U-shaped frame cavity through the clearance opening, the end of the spiral vane is fixed on the spline barrel, the two spiral vanes are coaxial and do not interfere with each other, two independent spiral spaces with equal width are formed between the two spiral vanes, a plurality of elastic rods are uniformly distributed in one of the spiral spaces, and a spherical hinge is arranged between the end of the elastic rod and the corresponding spiral vane; a telescopic mechanism is arranged on one side of the spline shaft, the telescopic mechanism can control the two spline barrels to move close to or away from each other, so as to realize the narrowing or widening of the spiral space; when the spline shaft drives the two spiral vanes to rotate through the spline barrel, the edges of the book blocks enter the spiral space formed by the two spiral vanes, so that the book blocks move to the left.

[0008] It should be emphasized that the phase difference between the two spiral vanes in the same staggered unit is 180°, so that the width of the two spiral spaces formed by the spiral vanes remains the same, and the width is equal to half of the lead of the spiral vane. The spline shaft rotates 180° each time, assuming that the front edge of the first book block enters the spiral space provided with the elastic rod, at this time, the elastic rod forces the book block to move a certain distance to the back side, at the same time, the other side of the book block is in the spiral space without the elastic rod in the other staggered unit; the second book block is opposite to the first book block, the front edge of the second book block enters the spiral space without the elastic rod, and the back edge of the second book block enters the spiral space provided with the elastic rod, the elastic rod makes the second book block move a certain distance forward, so as to repeat the above process to complete the staggering.

[0009] Furthermore, the telescopic mechanism includes an electric cylinder, which has long strips corresponding to the spline tube fixed at both ends. The spline tube passes through the long strips and a bearing is installed between the two. The long strip at the right end is fixed on the side plate of the U-shaped frame; the telescopic ability of the electric cylinder can drive the spline tube on it to move left and right through the long strip on the left, thereby realizing the extension and contraction of the spiral blade, and finally realizing the width adjustment of the spiral space.

[0010] Furthermore, a conveyor belt is provided at the lower side of the right end of the U-shaped frame cavity, and the conveyor belt and the spline shaft rotate or stop simultaneously.

[0011] Furthermore, a worm gear mechanism is provided at the left end of the spline shaft, wherein the worm is coaxially fixed with the spline, the worm gear is coaxially connected to the roller in the transmission belt, a servo motor is connected to the spline shaft, and the servo motor is fixed on the U-shaped frame; a sensor is provided at the right end of the U-shaped frame, and the sensor can control the start or shut down of the servo motor; each time the sensor is triggered, the servo motor drives the spline shaft to rotate 180°.

[0012] Furthermore, the right ends of the front and rear side panels of the U-shaped frame are in an outwardly folded arc structure.

[0013] Furthermore, a movable plate capable of moving left and right is provided in the U-shaped frame, and a plurality of compression springs are installed between the left side of the movable plate and the left side plate of the U-shaped frame.

[0014] Furthermore, the U-shaped frame and the workbench are fixed via a plurality of support rods.

[0015] The present invention has an ingenious structure and can collect book sheets in a staggered manner. After collection, it can be sorted in units of single book sheets, and multiple book sheets do not interfere with each other while ensuring the staggered effect. At the same time, the edges of multiple book pages in the same book sheet can be aligned with each other, and staggered collection can be achieved in a relatively quiet manner with low noise and high reliability, and the neatness of the book sheets is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the present invention.

[0017] Figure 2 It is the front view of the present invention.

[0018] Figure 3 It is the right view of the present invention.

[0019] Figure 4 It is a top view of the present invention.

[0020] Figure 5 The figure shows the specific structure of the workbench, U-shaped frame, movable plate and upper compression spring in the present invention.

[0021] Figure 6 Schematic diagram of the positional relationship among the transmission belt, worm gear mechanism, and spline shaft in the present invention.

[0022] Figure 7 This is a structural diagram of the spline shaft and its spline cylinder, spiral blades, and elastic rod in the present invention.

[0023] Figure 8 This is a schematic diagram of the working state of the present invention when collecting books.

[0024] Figure 9 This is a diagram showing the effect of dislocation between multiple book sheets after the present invention is used to store books in a dislocated manner. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0026] Depend on Figures 1 to 9 The present invention comprises a workbench 1, a U-shaped frame 2 with an opening facing right is provided on the workbench 1, staggered units are provided on both the front and rear sides of the U-shaped frame 2, and a clearance opening corresponding to the staggered units is provided on the side panels of the U-shaped frame 2;

[0027] The staggered unit includes a horizontal spline shaft 3, which can rotate actively. The spline shaft 3 is placed outside the U-shaped frame 2. Two spline cylinders 4 are mounted on the spline shaft 3. The spline cylinder 4 on the right cannot move left or right. There are two spiral blades 5 between the two spline cylinders 4. The edges of the spiral blades 5 extend into the cavity of the U-shaped frame 2 through the clearance opening. The ends of the spiral blades 5 are fixed on the spline cylinder 4. The two spiral blades 5 are coaxial and do not interfere with each other. Two independent spiral spaces of equal width are formed between the two spiral blades 5, one of which is evenly distributed with multiple elastic rods 6. The ends of the elastic rods 6 are spherically jointed with the corresponding spiral blades 5; a telescopic mechanism is provided on one side of the spline shaft 3, which can control the two spline cylinders 4 to move closer or farther away from each other, thereby achieving the narrowing or widening of the width of the spiral space; when the spline shaft 3 drives the two spiral blades 5 to rotate through the spline cylinder 4, the edge of the book enters the spiral space formed by the two spiral blades 5, causing the book to move to the left.

[0028] It is emphasized that the phase difference between two spiral vanes 5 in the same staggered unit is 180°, so as to ensure that the width of the two spiral spaces formed by the spiral vanes 5 remains consistent, which is equal to half of the lead of the spiral vanes 5, no matter the spiral vanes 5 are stretched or compressed. The spline shaft 3 rotates 180° each time, assuming that the front side edge of the first book block enters the spiral space provided with the elastic rod 6, at this time, the elastic rod 6 forces the book block to push a certain distance to the rear side, while the other side of the book block is in the spiral space without the elastic rod 6 in the other staggered unit; immediately after the second book block is opposite to the first book block, the front side edge of the second book block enters the spiral space without the elastic rod 6, and the rear side edge enters the spiral space provided with the elastic rod 6, the elastic rod 6 makes the second book block move a certain distance forward, so as to repeat the above process to complete the staggering.

[0029] In order to ensure that the spline barrel 4 on the right side cannot move left and right, and to realize the adjustment of the width of the spiral space formed between the two spiral body vanes to adapt to book blocks of different thicknesses, the telescopic mechanism includes an electric cylinder 7, both ends of the electric cylinder 7 are fixed with a long strip plate 8 corresponding to the spline barrel 4, the spline barrel 4 penetrates through the long strip plate 8 and a bearing is installed therebetween, and the right end of the long strip plate 8 is fixed on the side plate of the U-shaped frame 2; the telescopic electric cylinder 7 can drive the spline barrel 4 on the left side to move left and right, thereby realizing the stretching and contraction of the spiral vanes 5, and finally realizing the control of the width adjustment of the spiral space.

[0030] In order to be able to arrange the edges of multiple book blocks in the same book block neatly, and to enable the book blocks to be transported stably and reduce the wear of the lower edge of the book block, the right end of the cavity of the U-shaped frame 2 is provided with a conveying belt, and the conveying belt rotates or stops simultaneously with the spline shaft 3.

[0031] In order to realize that the spline shaft 3 can rotate 180° each time, and simultaneously realize that the conveying belt rotates or stops simultaneously with the spline shaft 3, the left end of the spline shaft 3 is provided with a worm and gear mechanism, wherein the worm 10 is fixed coaxially with the spline, the worm wheel 9 is connected coaxially with the roller 11 in the conveying belt, the spline shaft 3 is connected with a servo motor 12, the servo motor 12 is fixed on the U-shaped frame 2; the right end of the U-shaped frame 2 is provided with a sensor, the sensor can control the start or stop of the servo motor 12; the sensor triggers once, and the servo motor 12 drives the spline shaft 3 to rotate 180°.

[0032] In order to facilitate the entry of the book block into the right end of the U-shaped frame 2, the right end of the front and rear side plates of the U-shaped frame 2 is in an outwardly folded arc structure.

[0033] In order to enable the collected book blocks to be in close contact with each other, the U-shaped frame 2 is provided with a movable plate 13 which can move left and right, and a plurality of compression springs are installed between the left side of the movable plate 13 and the left side plate of the U-shaped frame 2.

[0034] The U-shaped frame 2 is fixed with the workbench 1 through a plurality of supporting rods 14.

[0035] It is worth noting that, for the convenience of illustration, it is assumed that the spiral space with the elastic rods 6 is a spiral space a, and the spiral space without the elastic rods is a spiral space b. The elastic rods 6 in the present application can be a rod-shaped object with deformation ability, such as a spring rod or a rubber rod.

[0036] In use, when the book pushing mechanism pushes the first book block with the completed collation into the right end opening of the U-shaped frame 2, the sensor controls the servo motor 12 to start, and the servo motor 12 drives the spline barrel 4 to rotate 180°, so that the front end of the book block enters the a spiral space in the front offset unit, and the plurality of elastic rods 6 in the a spiral space force the book block to move backward, and the rear end of the book block is placed in the b spiral space in the rear offset unit; at the same time, the worm 10 drives the worm wheel 9 to rotate, and the rotation of the worm wheel 9 drives the transmission belt to rotate, and the belt in the transmission belt synchronously drives the lower end of the book block to the left, at this time, the first book block completely enters the U-shaped frame 2 and is clamped by the spiral blades 5 in the two offset units; when the second book block is pushed to the right end opening of the U-shaped frame 2, the front end of the second book block enters the b spiral space, and the rear end of the book block enters the a spiral space, so that the second book block is displaced forward by a certain distance, and thus the first book block and the second book block are offset; in this way, when a plurality of book blocks reach the left side of the U-shaped frame 2 in turn, the plurality of book blocks are tightly pressed against each other under the extrusion of the movable plate 13, and remain offset and do not separate, thus completing the offset and book collection.

[0037] In the above process, before the plurality of book blocks are separated from the spiral blades 5, the adjacent book blocks remain in the offset state and have gaps between them and do not extrude each other, so that the friction between the plurality of book blocks is relatively small, and the plurality of elastic rods 6 make the edges of the plurality of book pages in the same book block tend to be neat in the process of being contacted in turn; when the book block moves to the left and is completely separated from the spiral blades 5, the plurality of book blocks are close to each other and extrude each other, so that the book blocks cannot easily displace, ensuring the offset effect.

[0038] When the traditional book collecting platform collects books, the book block is pushed to the platform by the paper pushing mechanism, and the platform needs to move back and forth. On this basis, the last book block of the platform is easy to interfere with the book block to be pushed on the conveying belt of the book collecting machine, causing the last book block of the platform to deviate from the predetermined position, and causing the book collecting misalignment effect to be greatly discounted. In view of this problem, in the present application, the front and rear ends of the book block are clamped by the front and rear misalignment units, and at the same time, the transmission belt on the U-shaped frame 2 also drives the lower end of the book block to move left, causing the lower end of the book block to completely interfere with the next book block to be pushed, ensuring the misalignment effect.

[0039] In the present application, the platform does not need to move back and forth throughout the misalignment collecting process, and does not need to consider the inertial influence in the reciprocating movement. The adjacent book blocks are obviously misaligned, which can effectively prevent the misaligned and missing pages in the subsequent binding, but the collecting effect and neatness are greatly improved.

[0040] The misalignment structure in the present application uses double helical blades and multiple elastic rods 6 to separate the adjacent book blocks and maintain the misaligned posture. In this way, the elastic rod 6 continuously contacts and collides with multiple book pages in the same book block, so that they can have enough time and space to align, greatly improving the quality of the later glue nails.

[0041] For book blocks of different thicknesses, the present application adopts a telescopic helical blade 5 structure. When the telescopic mechanism is the helical blade 5 extension, the width of the helical space increases, which is suitable for book blocks with larger thickness. Conversely, when the helical blade 5 is retracted, the helical space width decreases, which is suitable for book blocks with smaller thickness.

Claims

1. A special staggered collection platform for a printing and collating machine, characterized in that: The workbench (1) comprises a U-shaped frame (2) with an opening facing right, the U-shaped frame (2) is provided with offset units on both the front and rear sides, and the side panels of the U-shaped frame (2) are provided with clearance openings corresponding to the offset units; The dislocation unit includes a horizontal spline shaft (3), the spline shaft (3) can actively rotate, the spline shaft (3) is placed outside the U-shaped frame (2), two spline cylinders (4) are mounted on the spline shaft (3), the spline cylinder (4) on the right cannot move left and right, there are two spiral blades (5) between the two spline cylinders (4), the edge of the spiral blade (5) extends into the cavity of the U-shaped frame (2) through the clearance opening, the end of the spiral blade (5) is fixed on the spline cylinder (4), the two spiral blades (5) are coaxial and do not interfere with each other, and two spiral blades (5) are formed between the two spiral blades (5). The invention discloses a plurality of spiral spaces which are independent of each other and have equal widths, wherein a plurality of elastic rods (6) are evenly distributed in one of the spiral spaces, and a ball joint is formed between the end of the elastic rod (6) and the corresponding spiral blade (5); a telescopic mechanism is provided on one side of the spline shaft (3), and the telescopic mechanism can control the two spline cylinders (4) to move closer to or farther away from each other, thereby achieving the narrowing or widening of the width of the spiral space; when the spline shaft (3) drives the two spiral blades (5) to rotate via the spline cylinder (4), the edge of the book sheet enters the spiral space formed by the two spiral blades (5), causing the book sheet to move leftward.

2. The special staggered collection platform for a printing and collating machine according to claim 1, characterized in that: The telescopic mechanism includes an electric cylinder (7), and long strips (8) corresponding to the spline cylinder (4) are fixed at both ends of the electric cylinder (7). The spline cylinder (4) passes through the long strips (8) and a bearing is installed between the two. The long strip (8) at the right end is fixed on the side plate of the U-shaped frame (2); the telescopic mechanism of the electric cylinder (7) can drive the spline cylinder (4) on the left side of the long strip (8) to move left and right, thereby realizing the extension and contraction of the spiral blade (5), and finally realizing the width adjustment of the spiral space.

3. A special staggered collection platform for a printing and collating machine according to claim 1 or 2, characterized in that: A conveyor belt is provided on the lower right side of the cavity of the U-shaped frame (2), and the conveyor belt and the spline shaft (3) rotate or stop simultaneously.

4. The special staggered collection platform for a printing and collating machine according to claim 3, characterized in that: The left end of the spline shaft (3) is provided with a worm gear mechanism, wherein the worm (10) is fixed coaxially with the spline, the worm wheel (9) is coaxially connected to the roller (11) in the transmission belt, the spline shaft (3) is connected to a servo motor (12), and the servo motor (12) is fixed on the U-shaped frame (2); a sensor is provided at the right end of the U-shaped frame (2), and the sensor can control the start or stop of the servo motor (12); each time the sensor is triggered, the servo motor (12) drives the spline shaft (3) to rotate 180 degrees.

5. The special staggered collection platform for a printing and collating machine according to claim 1 or 2, characterized in that: The right ends of the front and rear side panels of the U-shaped frame (2) are in an outwardly folded arc structure.

6. The special staggered collection platform for a printing and collating machine according to claim 1, characterized in that: A movable plate (13) capable of moving left and right is provided in the U-shaped frame (2), and a plurality of compression springs are installed between the left side of the movable plate (13) and the left side plate of the U-shaped frame (2).

7. The special staggered collection platform for a printing and collating machine according to claim 1, characterized in that: The U-shaped frame (2) and the workbench (1) are fixed via a plurality of support rods (14).

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