A sheet material sorting system

Abstract

The present invention discloses a sheet material sorting system, comprising a frame, a conveying device arranged on the frame for conveying sheets to a handling station, a receiving device for collecting sheets, and a handling device for conveying sheets to be sorted on the handling station to the receiving device; the receiving device comprises a plurality of receiving mechanisms, each receiving mechanism comprises a receiving platform arranged on the frame and a limiting mechanism arranged on the receiving platform for centering and limiting the sorted sheets; the handling device comprises a handling manipulator and a handling drive mechanism for driving the handling manipulator to move so as to convey the sheets to be sorted to the corresponding receiving mechanism, wherein the handling drive mechanism comprises a vertical handling drive mechanism and a horizontal handling drive mechanism. The sheet material sorting system of the present invention can sort and collect different types of sheets on the same production line, thereby improving efficiency.

Description

Technical Field

[0001] The invention relates to a screen printing device, in particular to a sheet material sorting system. Background Art

[0002] During the printing process of the screen printing equipment, the substrate to be printed will first be transported to the printing table below the screen of the printing table, and then the scraper will move downward to press the screen so that the pressed part of the screen is pressed tightly on the substrate. Then the scraper will move from one end of the screen to the other end, and while scraping the ink on the screen to the other end, the pattern on the screen will be printed on the substrate through the extrusion effect, thus completing the printing process. Finally, through drying or other treatments, the entire screen printing process can be completed.

[0003] Nowadays, with the continuous development of science and technology, the existing screen printing production line can process a variety of different specifications of sheets at the same time or process the same specifications of sheets with different printing processes. For example, the invention patent application with application publication number CN109228645A discloses a "printing production system", which can process multiple sheets at the same time through screen printing machines arranged on both sides of the multi-layer tunnel furnace. Specifically: first, different types of sheets are printed or the same type of sheets are processed with a variety of different printing processes by multiple screen printing machines arranged on both sides of the multi-layer tunnel furnace, and then the unloading device on the screen printing machine transports the printed sheets to the conveying device of the multi-layer tunnel furnace, and the conveying device drives these sheets through the multi-layer tunnel furnace to complete the drying process of the sheets, and finally these sheets are sent to the receiving platform for collection.

[0004] However, the existing material receiving platform collects the sheets coming out of the multi-layer tunnel furnace by means of a handling robot and then sorts them, which is not only time-consuming but also inefficient. Summary of the invention

[0005] The object of the present invention is to overcome the deficiencies of the prior art and to provide a sheet material sorting system, wherein the sheet material sorting system can sort and collect different types of sheets on the same production line, thereby improving efficiency.

[0006] The technical solution of the present invention to solve the above technical problems is:

[0007] A sheet material sorting system comprises a frame, a conveying device arranged on the frame for conveying sheets to a handling station, a receiving device for collecting sheets, and a conveying device for conveying sheets to be sorted on the handling station to the receiving device, wherein:

[0008] The material receiving device comprises a plurality of material receiving mechanisms, each of which comprises a material receiving platform arranged on a frame and a limiting mechanism arranged on the material receiving platform for centering and limiting the sorted sheets;

[0009] The transport device includes a transport robot and a transport drive mechanism for driving the transport robot to move so as to transport the sheets to be sorted to the corresponding material receiving mechanism, wherein the transport drive mechanism includes a vertical transport drive mechanism for driving the transport robot to move vertically and a horizontal transport drive mechanism for driving the transport robot to move along the transport direction of the conveying device.

[0010] Preferably, the conveying device comprises a plurality of conveying rollers arranged in parallel and a conveying drive mechanism for driving the conveying rollers to rotate, and the conveying rollers on the conveying device constitute a conveying channel for conveying the sheet material.

[0011] Preferably, it also includes a centering device for centering the two sides of the sheet material in the conveying channel parallel to the conveying direction, wherein the centering device includes a first limit plate arranged at the end of the conveying channel, a first movable clapper and a second movable clapper arranged on both sides of the first limit plate, and a centering mechanism for driving the first movable clapper and the second movable clapper to move synchronously towards each other, wherein the length directions of the first movable clapper and the second movable clapper are parallel to the conveying direction of the conveying channel, and the first movable clapper and the second movable clapper are provided with avoidance holes at positions corresponding to the conveying rollers.

[0012] Preferably, there are two centering mechanisms, namely a first centering mechanism and a second centering mechanism, wherein the first centering mechanism includes a first cylinder fixing plate and a first cylinder arranged on the first cylinder fixing plate, wherein the piston rod of the first cylinder is connected to the first movable clapper; the second centering mechanism includes a second cylinder fixing plate and a second cylinder arranged on the second cylinder fixing plate, wherein the piston rod of the second cylinder is connected to the second movable clapper.

[0013] Preferably, the centering device also includes a synchronous driving mechanism for adjusting the spacing between the first movable clapper and the second movable clapper, the synchronous driving mechanism including a forward and reverse threaded screw arranged on the frame, a first screw nut and a second screw nut arranged at both ends of the forward and reverse threaded screw, and a rotating driving mechanism for driving the forward and reverse threaded screw to rotate, wherein the length direction of the forward and reverse threaded screw is perpendicular to the first movable clapper and the second movable clapper, and the two sides of the forward and reverse threaded screw are provided with external threads with opposite spiral directions; the first screw nut and the second screw nut are provided with internal threads matching the external threads, and the spiral directions of the external threads on the first screw nut and the second screw nut are the same; the first screw nut is mounted on the first cylinder fixing plate, and the second screw nut is mounted on the second cylinder fixing plate.

[0014] Preferably, the limiting mechanism includes a second limiting plate arranged on the material receiving platform, a limiting rod and a limiting driving mechanism for driving the limiting rod to move toward or away from the center point of the material receiving platform, wherein the limiting rod is arranged on both sides of the second limiting plate and on the side of the material receiving platform opposite to the second limiting plate, wherein the limiting rods arranged on both sides of the second limiting plate are first limiting rods, and the limiting rods arranged on the side of the material receiving platform opposite to the second limiting plate are second limiting rods; the material receiving platform is provided with avoidance grooves for sliding limiting rods at positions corresponding to the first limiting rod and the second limiting rod.

[0015] Preferably, there are three limit driving mechanisms, which are respectively used to drive the second limit rod and the first limit rods on both sides; each limit driving mechanism includes a limit cylinder fixing plate, a limit cylinder arranged on the limit cylinder fixing plate, and a connecting block for connecting multiple first limit rods or second limit rods, wherein the first limit rod or the second limit rod is installed on the connecting block, and the connecting block is connected to the piston rod of the limit cylinder; the limit cylinder fixing plate is installed on the frame.

[0016] Preferably, the material receiving mechanism further comprises a vertical driving mechanism for driving the material receiving platform to perform vertical movement.

[0017] Preferably, there are two groups of centering devices, and the two groups of centering devices divide the conveying channel into two conveying channels; each group of centering devices is used to center the sheets to be sorted in a single conveying channel.

[0018] Preferably, the material collecting mechanism is in two groups, which are used to collect the sheets from the two conveying channels respectively; each group of material collecting mechanisms is in two groups, and the two material collecting mechanisms are arranged in sequence along the conveying direction of the conveying channels; the transporting devices are in two groups, and each group of transporting devices is used to transport the sheets on a single conveying channel to the two corresponding material collecting mechanisms.

[0019] Preferably, it further comprises a visual detection device for detecting the sheet material, wherein the visual detection device is used to detect whether the sheet material has arrived at the handling station and to detect the type of the sheet material that has arrived at the handling station.

[0020] The working principle of the sheet material sorting system of the present invention is:

[0021] During operation, the sheets that have completed the drying process enter the conveying device, which transports them to the handling station. Then, the handling drive mechanism drives the handling robot to move, and transports the sheets located at the handling station to the corresponding material receiving mechanism, thereby completing the sorting of different types of sheets.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The sheet material sorting system of the present invention can sort and collect different types of sheet materials on the same production line, thereby improving the collection efficiency.

[0024] 2. The sheet material sorting system of the present invention is provided with a plurality of material receiving mechanisms, so that the sheet material sorting system of the present invention can collect a variety of different types of sheet materials, and the staff does not need to frequently replace the material receiving mechanisms, which not only makes the operation convenient, but also makes the efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1-Figure 4 It is a structural schematic diagram of a specific embodiment of the sheet material sorting system of the present invention, wherein: Figure 1 For the main view, Figure 2 is a top view, Figure 3 is a side view, Figure 4 It is a schematic diagram of the three-dimensional structure.

[0026] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of two straightening devices.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the material receiving mechanism.

[0029] Figure 8 It is a three-dimensional structural schematic diagram of a second limiting rod and a limiting driving mechanism for driving the second limiting rod. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0031] See also Figure 1-Figure 8 The sheet material sorting system of the present invention comprises a frame 1, a conveying device 3 arranged on the frame 1 for conveying sheets to a handling station, a receiving device for collecting sheets, and a conveying device 4 for conveying sheets to be sorted on the handling station to the receiving device, wherein the receiving device comprises a plurality of receiving mechanisms 5.

[0032] See also Figure 1-Figure 8 The transport device 4 includes a transport robot 4-1 and a transport drive mechanism for driving the transport robot 4-1 to move so as to transport the sheet material to be sorted to the corresponding material receiving mechanism 5, wherein the transport robot 4-1 can adopt an existing robot, for example, including a bracket and a plurality of suction cups arranged on the bracket, and the bracket and the suction cups arranged on the bracket are driven to move by the transport drive mechanism, so as to realize the transport of the sheet material. The transport drive mechanism includes a vertical transport drive mechanism 4-3 for driving the transport robot 4-1 to move vertically and a horizontal transport drive mechanism 4-2 for driving the transport robot 4-1 to move along the transport direction of the conveying device 3, wherein the vertical transport drive mechanism 4-3 and the horizontal transport drive mechanism 4-2 can be driven by a cylinder, or by a combination of a motor and a screw drive mechanism, or by a combination of a motor and a synchronous belt drive mechanism. The specific implementation of the above three methods can refer to the existing device implementation.

[0033] See also Figure 1-Figure 8 The conveying device 3 includes a plurality of conveying rollers and a conveying drive mechanism for driving the conveying rollers to rotate, wherein the plurality of conveying rollers are arranged in parallel to form a conveying channel for conveying the sheet. The conveying drive mechanism can be composed of a driving motor and a synchronous belt transmission mechanism, and the driving motor drives the synchronous belt to rotate, thereby driving the plurality of conveying rollers to rotate synchronously, thereby realizing the conveying of the sheet.

[0034] See also Figure 1-Figure 8The sheet sorting system of the present invention also includes a centering device 2 for centering the two sides of the sheet in the conveying channel parallel to the conveying direction, wherein the centering device 2 includes a first limit plate 2-12 arranged at the end of the conveying channel, a first movable clapper 2-1 and a second movable clapper 2-2 arranged on both sides of the first limit plate 2-12, and a centering mechanism for driving the first movable clapper 2-1 and the second movable clapper 2-2 to move synchronously toward each other, wherein the length direction of the first movable clapper 2-1 and the second movable clapper 2-2 is parallel to the conveying direction of the conveying channel, and the first movable clapper 2-1 and the second movable clapper 2-2 are provided with avoidance holes 2-10 at positions corresponding to the conveying rollers.

[0035] See also Figure 1-Figure 8 There are two centering mechanisms, namely the first centering mechanism and the second centering mechanism, wherein the first centering mechanism includes a first cylinder fixing plate 2-3 arranged on the frame 1 and a first cylinder 2-5 arranged on the first cylinder fixing plate 2-3, wherein the piston rod of the first cylinder 2-5 is connected to the first moving clapper 2-1; the second centering mechanism includes a second cylinder fixing plate 2-4 arranged on the frame 1 and a second cylinder 2-6 arranged on the second cylinder fixing plate 2-4, wherein the piston rod of the second cylinder 2-6 is connected to the second moving clapper 2-2. The first cylinder 2-5 and the second cylinder 2-6 drive the first moving clapper 2-1 and the second moving clapper 2-2 to move synchronously toward each other, thereby realizing the centering of the sheet in the handling station.

[0036] See also Figure 1-Figure 8The centering device 2 also includes a synchronous drive mechanism for adjusting the spacing between the first movable clapper 2-1 and the second movable clapper 2-2, and the synchronous drive mechanism includes a forward and reverse threaded screw 2-8 arranged on the frame 1, a first screw nut and a second screw nut arranged at both ends of the forward and reverse threaded screw 2-8, and a rotating drive mechanism for driving the forward and reverse threaded screw 2-8 to rotate, wherein the length direction of the forward and reverse threaded screw 2-8 is perpendicular to the first movable clapper 2-1 and the second movable clapper 2-2, and the two sides of the forward and reverse threaded screw 2-8 are provided with external threads with opposite spiral directions; the first screw nut and the second screw nut are provided with internal threads matching the external threads; the first screw nut is installed on the first cylinder fixing plate 2-3, and the second screw nut is installed on the second cylinder fixing plate 2-4. In this way, the forward and reverse screws 2-8 are driven to rotate by the rotary drive mechanism, thereby driving the first screw nut and the second screw nut to move toward each other or in the opposite direction, and then adjusting the distance between the first mobile clapper 2-1 and the second mobile clapper 2-2, so that the first mobile clapper 2-1 and the second mobile clapper 2-2 can be used to realize the centering of sheets of different sizes. In addition, the synchronous drive mechanism can also be set to adjust the initial distance between the first mobile clapper 2-1 and the second mobile clapper 2-2, so that when the centering mechanism drives the first mobile clapper 2-1 and the second mobile clapper 2-2 to move toward each other, the first mobile clapper 2-1 and the second mobile clapper 2-2 move to the extreme position, and the first mobile clapper 2-1 and the second mobile clapper 2-2 just center the sheet. If the first mobile clapper 2-1 and the second mobile clapper 2-2 move toward each other and reach the extreme position, the distance between the first mobile clapper 2-1 and the second mobile clapper 2-2 is less than the width of the sheet, which will damage the sheet. Therefore, by setting up a synchronous drive mechanism, not only can the sheet be protected, but also the operation can be made more convenient, that is, there is no need to accurately control the movement stroke of the piston rods of the first cylinder 2-5 and the second cylinder 2-6. It is only necessary to ensure that the distance between the first moving clapper 2-1 and the second moving clapper 2-2 is equal to the width of the sheet after the first moving clapper 2-1 and the second moving clapper 2-2 move towards each other and reach the extreme position.

[0037] See also Figure 1-Figure 8 The rotation drive mechanism includes a hand wheel 2-7 located outside the frame 1, and the hand wheel 2-7 is connected to one end of the positive and negative threaded screw 2-8. By rotating the hand wheel 2-7, the positive and negative threaded screw 2-8 can be driven to rotate, thereby adjusting the distance between the first movable clapper 2-1 and the second movable clapper 2-2. In addition, in addition to manual adjustment, the rotation drive mechanism can also be electrically adjusted, such as driven by a servo motor.

[0038] See also Figure 1-Figure 8 The synchronous drive mechanism further includes a guide mechanism 2-9, which includes a guide shaft provided on the frame 1 and a guide hole provided on the first cylinder fixing plate 2-3 and the second cylinder fixing plate 2-4 and matched with the guide shaft, wherein the length direction of the guide shaft is parallel to the length direction of the forward and reverse threaded screw 2-8. The guide mechanism 2-9 is provided to guide the first mobile clapper 2-1 and the second mobile clapper 2-2 to move toward and move in the reverse direction, thereby improving the positioning accuracy of the first mobile clapper 2-1 and the second mobile clapper 2-2.

[0039] See also Figure 1-Figure 8 The guide mechanism 2-9 is divided into two groups, and the two groups of guide mechanisms 2-9 are respectively arranged on both sides of the forward and reverse threaded screws 2-8.

[0040] See also Figure 1-Figure 8 The first movable clapper 2-1 and the second movable clapper 2-2 are both provided with an outwardly inclined guide plate 2-11 at the end away from the first limit plate 2-12. The guide plate 2-11 is provided to guide the sheet material to smoothly enter the conveying channel.

[0041] See also Figure 1-Figure 8The material receiving mechanism 5 includes a material receiving platform 5-1 arranged on the frame 1 and a limiting mechanism arranged on the material receiving platform 5-1 for centering and limiting the sorted sheets, wherein the limiting mechanism includes a second limiting plate 5-2, a limiting rod and a limiting driving mechanism for driving the limiting rod to move toward or away from the center point of the material receiving platform 5-1, wherein the limiting rod is arranged on both sides of the second limiting plate 5-2 and on the side of the material receiving platform 5-1 opposite to the second limiting plate 5-2, wherein the limiting rods arranged on both sides of the second limiting plate 5-2 are first limiting rods 5-3, and the side of the material receiving platform 5-1 opposite to the second limiting plate 5-2 is second limiting rod 5-4; the material receiving platform 5-1 is provided with an avoidance groove 5-5 for sliding the limiting rod at the corresponding position of the first limiting rod 5-3 and the second limiting rod 5-4. In this way, by setting up a limiting mechanism, the second limiting plate 5-2, the first limiting rod 5-3, the second limiting rod 5-4 and the material receiving platform 5-1 together constitute a material receiving trough for storing sheet materials, and the length and width of the material receiving trough can be automatically adjusted according to the specifications of the sheet materials to be stored. The first limiting rod 5-3 and the second limiting rod 5-4 are driven by the limiting driving mechanism to move toward the center point of the material receiving platform 5-1 or away from the center point of the material receiving platform 5-1, thereby adjusting the length and width of the material receiving trough, and then sheets of different sizes can be collected. In addition, by driving the first limit rod 5-3 and the second limit rod 5-4 toward the center point of the material receiving platform 5-1 through the limit drive mechanism, the sheet material in the material receiving trough can be centered so that it is in the center position of the material receiving platform 5-1 and the front end is close to the second limit plate 5-2. In this way, when the conveying device 4 conveys the sheet material in the material receiving trough to the next processing equipment for subsequent processing, there is no need to correct the position of the sheet material again.

[0042] See also Figure 1-Figure 8 There are four first limiting rods 5-3 on both sides of the second limiting plate 5-2, and the distance between two adjacent first limiting rods 5-3 is equal; there are two second limiting rods 5-4.

[0043] See also Figure 1-Figure 8There are three limit drive mechanisms, which are used to drive the second limit rod 5-4 and the first limit rods 5-3 on both sides. Each limit drive mechanism includes a limit cylinder fixing plate 5-7, a limit cylinder 5-6 arranged on the limit cylinder fixing plate 5-7, and a connecting block 5-11 for connecting multiple first limit rods 5-3 or second limit rods 5-4, wherein the first limit rod 5-3 or the second limit rod 5-4 is installed on the connecting block 5-11, and the connecting block 5-11 is connected to the piston rod of the limit cylinder 5-6; the limit cylinder fixing plate 5-7 is installed on the frame 1. The limit cylinder 5-6 drives the connecting block 5-11 to move, thereby driving the first limit rod 5-3 and the second limit rod 5-4 to move, and then adjusting the size of the material receiving trough, so as to collect sheets of different sizes.

[0044] See also Figure 1-Figure 8 The limiting cylinder fixing plate 5-7 is provided with an adjustment slot 5-8 at the part connected to the frame 1, and the extension direction of the adjustment slot 5-8 is the same as the movement direction of the first limiting rod 5-3 or the second limiting rod 5-4, that is, the extension direction of the adjustment slot 5-8 of the limiting mechanism for driving the movement of the first limiting rod 5-3 is the same as the movement direction of the first limiting rod 5-3, and the extension direction of the adjustment slot 5-8 of the limiting mechanism for driving the movement of the second limiting rod 5-4 is the same as the movement direction of the second limiting rod 5-4. By providing the adjustment slot 5-8, the initial distance between the second limiting plate 5-2 and the second limiting rod 5-4 and the initial distance between the first limiting rods 5-3 on both sides of the second limiting plate 5-2 can be adjusted, so as to realize the collection of sheets of different sizes. Before collecting the sheet material, adjust the initial distance between the second limit plate 5-2 and the second limit rod 5-4 and the initial distance between the first limit rod 5-3 on both sides of the second limit plate 5-2, so that when the limit cylinder 5-6 drives the first limit rod 5-3 and the second limit rod 5-4 to move toward the center point of the material receiving platform 5-1, when the piston rod of the limit cylinder 5-6 moves to the maximum stroke, the first limit rod 5-3 and the second limit rod 5-4 just center the sheet material, which can also prevent the first limit rod 5-3 and the second limit rod 5-4 from damaging the sheet material due to excessive movement stroke, thereby protecting the sheet material.

[0045] See also Figure 1-Figure 8, the material receiving mechanism 5 also includes a vertical driving mechanism for driving the material receiving platform 5-1 to make vertical movement. Its purpose is that when more and more sheets are on the material receiving platform 5-1, the height of the sheets piled on the material receiving platform 5-1 will also increase. If its height is higher than the height of the material receiving trough formed by the limiting rod and the second limiting plate 5-2, the limiting mechanism will not be able to limit and center the sheets that are higher than its height. Therefore, the material receiving platform 5-1 is driven to move downward by the vertical driving mechanism, and the material receiving platform 5-1 is used as a reference. Then, the height of the first limiting rod 5-3, the second limiting rod 5-4 and the second limiting plate 5-2 at the upper end of the material receiving platform 5-1 increases, which is equivalent to the increase in the height of the material receiving trough, which is equivalent to increasing the capacity of the material receiving trough, thereby storing more sheets. Wherein, the vertical driving mechanism includes a vertical cylinder 5-9, the vertical cylinder 5-9 is installed on the frame 1, and the piston rod of the vertical cylinder 5-9 is connected to the material receiving platform 5-1.

[0046] See also Figure 1-Figure 8 , the vertical driving mechanism also includes a vertical sliding mechanism 5-10 for guiding the vertical movement of the material receiving platform 5-1, the vertical sliding mechanism 5-10 includes a guide sleeve arranged on the frame 1 and a guide column arranged on the material receiving platform 5-1 and matched with the guide sleeve, wherein the guide column is arranged vertically. By setting the vertical sliding mechanism 5-10, it is possible to guide the vertical movement of the material receiving platform 5-1, wherein the vertical sliding mechanism 5-10 is a plurality of groups. In this embodiment, there are two groups of vertical sliding mechanisms 5-10, which are arranged at the diagonal corners of the material receiving platform 5-1.

[0047] See also Figure 1-Figure 8 There are two conveying channels, and the two conveying channels are arranged in parallel; correspondingly, there are two groups of centering devices 2, and the two groups of centering devices 2 are respectively used to center the sheets to be sorted in the two conveying channels.

[0048] See also Figure 1-Figure 8 The material collecting mechanism 5 is divided into two groups, which are respectively used to collect the sheets from the two conveying channels; each group of material collecting mechanisms 5 is two, and the two material collecting mechanisms 5 are arranged in sequence along the conveying direction of the conveying channel, so that the sheet sorting system of the present invention can sort four sheets of different specifications at the same time.

[0049] See also Figure 1-Figure 8 The transporting devices 4 are divided into two groups, and each group of transporting devices 4 is used to transport the sheets on a single conveying channel to the two corresponding receiving mechanisms 5. By setting two groups of transporting devices 4, each group of transporting devices 4 is responsible for transporting the sheets in one conveying channel. Compared with the method of using one group of transporting devices 4 to transport the sheets in two conveying channels, the transporting method of the present invention has higher transporting efficiency.

[0050] See also Figure 1-Figure 8 The sheet sorting system of the present invention also includes a visual inspection device 6 for detecting sheets. The visual inspection device 6 is divided into two groups, which are respectively used to detect whether the sheets in the two conveying channels have arrived at the handling station and to detect the type of the sheets that have arrived at the handling station. When the visual inspection device 6 detects that the sheets in the conveying channel it is responsible for have arrived at the handling station, and detects the type or size of the sheets, and then feeds back to the control system, the control system controls the centering device 2 to work, thereby centering the sheets; and controls the handling device 4 to carry the sheets to the corresponding receiving mechanism 5. The visual inspection device 6 in this embodiment can use an existing visual sensor on the market or a camera.

[0051] See also Figure 1-Figure 8 The working principle of the sheet material sorting system of the present invention is:

[0052] During operation, the conveying drive mechanism drives the conveying roller to rotate, thereby conveying the sheet to the transport station. The portion of the conveying channel located between the first limit plate 2-12, the first mobile clapper 2-1 and the second mobile clapper 2-2 forms the transport station. When the front end of the sheet contacts the first limit plate 2-12, the centering drive mechanism drives the first mobile clapper 2-1 and the second mobile clapper 2-2 to move toward each other synchronously, thereby centering the sheet. Then the conveying drive mechanism drives the conveying manipulator 4-1 to move, thereby conveying the sheet to the corresponding receiving mechanism 5, thereby completing the collection of the sheet. Similarly, when it is necessary to sort and collect sheets of different sizes, it is only necessary to convey these sheets of different sizes to the corresponding receiving mechanism 5 through the conveying device 4. Because the centering device 2 has already centered the position of the sheet before the conveying device 4 conveys the sheet to the receiving mechanism 5, the conveying device 4 can smoothly convey the sheet to the receiving mechanism 5, thereby improving the sorting efficiency.

[0053] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A sheet sorting system, comprising a frame, a conveying device arranged on the frame for conveying sheets to a handling station, a receiving device for collecting sheets, and a conveying device for conveying sheets to be sorted on the handling station to the receiving device, characterized in that: The conveying device comprises a plurality of conveying rollers arranged in parallel and a conveying driving mechanism for driving the conveying rollers to rotate, and the conveying rollers on the conveying device constitute a conveying channel for conveying sheets; The material receiving device comprises a plurality of material receiving mechanisms, each of which comprises a material receiving platform arranged on a frame and a limiting mechanism arranged on the material receiving platform for centering and limiting the sorted sheets; The transport device includes a transport robot and a transport drive mechanism for driving the transport robot to move so as to transport the sheets to be sorted to the corresponding material receiving mechanism, wherein the transport drive mechanism includes a vertical transport drive mechanism for driving the transport robot to move vertically and a horizontal transport drive mechanism for driving the transport robot to move along the transport direction of the conveying device; It also includes a centering device for centering the two sides of the sheet material in the conveying channel that are parallel to the conveying direction, wherein the centering device includes a first limit plate arranged at the end of the conveying channel, a first movable clapper and a second movable clapper arranged on both sides of the first limit plate, and a centering mechanism for driving the first movable clapper and the second movable clapper to synchronously move toward each other, wherein the length directions of the first movable clapper and the second movable clapper are parallel to the conveying direction of the conveying channel, and the first movable clapper and the second movable clapper are provided with avoidance holes at positions corresponding to the conveying rollers; there are two centering mechanisms, namely a first centering mechanism and a second centering mechanism, wherein the first centering mechanism includes a first cylinder fixing plate and a first cylinder arranged on the first cylinder fixing plate, wherein the piston rod of the first cylinder is connected to the first movable clapper; the second centering mechanism includes a second cylinder fixing plate and a second cylinder arranged on the second cylinder fixing plate, wherein the piston rod of the second cylinder is connected to the second movable clapper; The centering device also includes a synchronous driving mechanism for adjusting the spacing between the first movable clapper and the second movable clapper, and the synchronous driving mechanism includes a positive and negative threaded screw arranged on the frame, a first screw nut and a second screw nut arranged at both ends of the positive and negative threaded screw, and a rotation driving mechanism for driving the positive and negative threaded screw to rotate, wherein the length direction of the positive and negative threaded screw is perpendicular to the first movable clapper and the second movable clapper, and the two sides of the positive and negative threaded screw are provided with external threads with opposite spiral directions; the first screw nut and the second screw nut are provided with internal threads matching the external threads, and the spiral directions of the internal threads on the first screw nut and the second screw nut are the same; the first screw nut is mounted on the first cylinder fixing plate, and the second screw nut is mounted on the second cylinder fixing plate; Also included is a visual detection device for detecting the sheet material, the visual detection device is used to detect whether the sheet material has arrived at the handling station and to detect the type of the sheet material that has arrived at the handling station; The limit mechanism includes a second limit plate arranged on the material receiving platform, a limit rod and a limit driving mechanism for driving the limit rod to move toward the center point of the material receiving platform or away from the center point of the material receiving platform, wherein the limit rod is arranged on both sides of the second limit plate and on the side of the material receiving platform opposite to the second limit plate, wherein the limit rods arranged on both sides of the second limit plate are first limit rods, and the limit rods arranged on the side of the material receiving platform opposite to the second limit plate are second limit rods; the material receiving platform is provided with avoidance grooves for sliding of the limit rods at positions corresponding to the first limit rod and the second limit rod; The transport station and the material receiving platform are arranged along the conveying direction of the sheet material in the conveying channel. The first limit plate is located at one end of the centering device close to the material receiving platform, and the second limit plate is located at one end of the material receiving platform away from the transport station.

2. The sheet material sorting system according to claim 1, characterized in that: The material receiving mechanism also includes a vertical driving mechanism for driving the material receiving platform to perform vertical movement.

3. The sheet material sorting system according to claim 1, characterized in that: There are two groups of centering devices, which divide the conveying channel into two conveying channels; each group of centering devices is used to center the sheets to be sorted in a single conveying channel.

4. The sheet material sorting system according to claim 3, characterized in that: There are two groups of material collecting mechanisms, which are used to collect the sheets from the two conveying channels respectively; there are two material collecting mechanisms in each group, and the two material collecting mechanisms are arranged in sequence along the conveying direction of the conveying channels; there are two groups of conveying devices, and each group of conveying devices is used to convey the sheets on a single conveying channel to the two corresponding material collecting mechanisms.

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