Feeding equipment

Abstract

The utility model discloses a feeding device, which relates to the technical field of sheet material conveying and comprises a frame body, a feeding device and a stripping device. Comprising a tray which is used for placing sheet stock and can move vertically, a limiting rod which is arranged on the tray in a penetrating mode to limit the sheet stock to move left and right, a material blocking plate with inclined faces arranged at the two corners of the top end and a driving wheel used for driving the sheet stock to move. The stripping device is arranged on the frame body and located above the tray and comprises an adsorption belt used for adsorbing the front end of the sheet stock and a stripping air cylinder used for adsorbing the rear end of the sheet stock, the adsorption belt is located between the driving wheel and the stripping air cylinder, and inclined faces are arranged at the two corners of the top end of a material blocking plate abutting against the front end of the sheet stock so that the single sheet stock sucked by the stripping air cylinder can be separated from the front end of the material blocking plate. And the sheet stock is attached to the inclined face under the driving of the follow-up adsorption belt, the sheet stock can be conveyed to the driving wheel through the inclined face to complete feeding, and the problem that the sheet stock collides with the limiting baffle in the sheet stock stripping and conveying process, and consequently paper clamping and shutdown are caused can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet material conveying, in particular to a feeding device. Background Art

[0002] There are many single-sheet feeding devices on the market, such as the feeder on the printing machine, the paging machine that can peel off single sheets, etc. Usually, it includes the peeling and conveying of the sheet. When the sheet is sucked up and peeled off by the single sheet, the suction point is in the middle of the sheet, causing the two ends to droop naturally. When the sheet is taken forward by the suction belt, the drooping end of the sheet will collide with the limit baffle, causing paper jam and shutdown, making the sheet production efficiency low.

[0003] Therefore, how to avoid the problem of paper jam and machine shutdown caused by collision with the limit baffle during sheet stripping and conveying is a technical problem that technicians in this field need to solve at present. Utility Model Content

[0004] The utility model aims to provide a feeding device, which can avoid the problem of paper jam and machine stop caused by collision with a limit baffle during sheet stripping and conveying, thereby improving sheet production efficiency.

[0005] In order to achieve the above object, the utility model provides a feeding device, comprising:

[0006] Frame;

[0007] The loading device is arranged on the frame, and includes a tray for placing the sheet and capable of vertical movement, a limit rod passing through the tray to limit the left and right movement of the sheet, a baffle plate with inclined surfaces at the two corners of the top, and a driving wheel for driving the sheet to move;

[0008] The stripping device is arranged on the frame and located above the tray, and includes an adsorption belt for adsorbing the front end of the sheet and a stripping cylinder for adsorbing the rear end of the sheet. The adsorption belt is located between the driving wheel and the stripping cylinder to drive the sheet to fit the inclined surface and then move to the driving wheel to complete the feeding.

[0009] Preferably, it also includes a correction device, which is arranged on the frame and located on the side of the driving wheel away from the peeling device, including a guide component, a distance correction component and a positioning sensor. The guide component drives the sheet after passing the driving wheel to be aligned left and right and then transported to the distance correction component. The positioning sensor can detect the position of the sheet so that the distance correction component can adjust the distance between adjacent sheets in the front and rear.

[0010] Preferably, the limit rod includes a left limit and a right limit, the left limit is connected to a first hand wheel, and the right limit is connected to a second hand wheel, and the first hand wheel and the second hand wheel can drive the left limit and the right limit to move closer to and away from each other to limit the movement of the stacked sheets.

[0011] Preferably, the loading device also includes a rack, a first motor and a second motor. The tray is connected to the top of the rack. The output end of the first motor is provided with a gear that can engage with the rack to drive the tray to move along the extension direction of the rack. A pressure wheel is provided above the driving wheel. The second motor is used to rotate the driving wheel to drive the sheet between the pressure wheel and the driving wheel to move to the correction device.

[0012] Preferably, the stripping cylinder is connected to the frame through a guide rod, and the guide rod can drive the stripping cylinder to move closer to and away from the adsorption belt. The stripping device also includes a spring sheet, a rear limit group, two groups of first blowing components for blowing up the rear end of the sheet material, and two groups of second blowing components for blowing up the front end of the sheet material. The rear limit group and the material baffle are used for front and rear limiting of the sheet material. The spring sheet is attached to the upper surface of the uppermost layer of the sheet material to limit the detachment of the lower layer of the sheet material when the stripping cylinder adsorbs the sheet material blown up by the first blowing component. The adsorption belt is provided with a number of negative pressure holes for adsorbing the sheet material blown up by the second blowing component.

[0013] Preferably, the first blowing assembly includes a first air outlet pipe and a first air blowing valve for controlling the gas flow of the first air outlet pipe, the second blowing assembly includes a second air outlet pipe and a second air blowing valve for controlling the gas flow of the second air outlet pipe, the axes of all the first air outlet pipes are parallel to each other, and the axes of all the second air outlet pipes are consistent.

[0014] Preferably, the stripping device further comprises a photoelectric sensor for detecting the height of the sheet, and the photoelectric sensor is connected to the first motor;

[0015] When the height of the sheet is lower than the first preset height, the photoelectric sensor controls the first motor to operate so that the tray moves upward;

[0016] When the height of the sheet is not lower than the first preset height, the photoelectric sensor controls the first motor to pause, and the tray is relatively fixed.

[0017] Preferably, the guide assembly includes a conveyor belt, an upper limit plate, a guide surface and a guide strip parallel to the guide surface. The conveyor belt and the guide strip are arranged at an angle to drive one side of all the sheets to adhere to the guide surface. The upper limit plate is located above the guide strip to prevent the sheets from warping after being adhered to the guide surface. A cover plate capable of pressing the sheets is provided above the conveyor belt. The guide assembly also includes an adjustment rod capable of adjusting the distance between the cover plate and the upper limit plate.

[0018] Preferably, the correction assembly includes a feed correction roller and an upper pressure roller spaced apart from each other, the upper pressure roller is used to compress the sheet between the feed correction roller and the upper pressure roller, and the feed correction roller is used to adjust the distance between the compressed sheet and the adjacent sheet.

[0019] Preferably, the cover plate is provided with a plurality of cylinders, each of which is provided with a ball that can fit the sheet material.

[0020] Compared with the above-mentioned background technology, the feeding equipment provided by the utility model includes a frame, a loading device and a stripping device. The loading device is arranged on the frame, including a tray for placing sheets and capable of vertical movement, a limit rod passed through the tray to limit the left and right movement of the sheets, a baffle plate with inclined surfaces at the two corners of the top, and a driving wheel for driving the sheet to move; the stripping device is arranged on the frame and located above the tray, including an adsorption belt for adsorbing the front end of the sheet and a stripping cylinder for adsorbing the rear end of the sheet, the adsorption belt is located between the driving wheel and the stripping cylinder to drive the sheet to fit the inclined surface and then move to the driving wheel to complete the feeding.

[0021] The camming device is arranged on a frame and is used to hold the sheet material in place and to move it vertically, so that the sheet material is moved to a predetermined height. The limit rod is used to limit the movement of the sheet material to the left and right, so that the sheet material is neat. The two corners of the top of the baffle plate abutting the front end of the sheet material are provided with inclined surfaces, so that a single sheet material sucked up by the peeling cylinder can be attached to the inclined surface under the drive of the subsequent adsorption belt, and the sheet material can be transported to the driving wheel through the inclined surface to complete the feeding. This arrangement can avoid the problem of paper jam and machine shutdown caused by collision with the limit baffle plate during sheet material peeling and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the feeding device provided by the embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the structure of a feeding device provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of a material baffle provided in an embodiment of the utility model;

[0026] Figure 4 A schematic structural diagram of a material baffle plate provided by an embodiment of the utility model from another perspective;

[0027] Figure 5 A schematic diagram of the structure of the sheet material and the baffle plate provided in the embodiment of the utility model when they are matched;

[0028] Figure 6 A schematic diagram of the structure of a peeling device provided in an embodiment of the utility model;

[0029] Figure 7 A schematic diagram of the structure of the stripping cylinder provided in the embodiment of the utility model when adsorbing the sheet;

[0030] Figure 8 A schematic diagram of the structure of the adsorption belt provided in the embodiment of the utility model when adsorbing a sheet;

[0031] Fig. 9 A schematic diagram of the structure of the deviation correction device provided by an embodiment of the utility model;

[0032] Fig.10 This is a schematic diagram of the structure of the conveyor belt provided in an embodiment of the utility model.

[0033] in:

[0034] 100-frame;

[0035] 200-feeding device, 210-tray, 221-left limit, 222-right limit, 223-blocking plate, 224-first hand wheel, 225-second hand wheel, 226-inclined surface, 230-driving wheel, 240-rack, 250-first motor, 260-pressing wheel;

[0036] 300-stripping device, 310-adsorption belt, 320-stripping cylinder, 321-cylinder body, 322-suction cup, 330-guide rod, 340-spring sheet, 350-rear limit group, 361-first air outlet pipe, 362-first air blowing valve, 371-second air outlet pipe, 372-second air blowing valve, 380-photoelectric sensor, 390-vacuum tube;

[0037] 400-correction device, 410-guide assembly, 411-conveyor belt, 412-upper limit plate, 413-guide surface, 414-guide strip, 415-cover plate, 416-adjustment rod, 417-cylinder, 418-ball, 421-feed correction roller, 422-upper pressure roller, 430-positioning sensor;

[0038] 500-sheet. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top" and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0042] The utility model aims to provide a feeding device, which can avoid the problem of paper jam and machine stop caused by collision with a limit baffle during sheet stripping and conveying, thereby improving sheet production efficiency.

[0043] See also Figure 1 To achieve the above objectives, the utility model provides a feeding device, including a frame 100, a loading device 200 and a stripping device 300.

[0044] See also Figure 2 The loading device 200 is arranged on the frame 100, including a tray 210 for placing the sheet material 500 and capable of vertical movement, a limit rod passing through the tray 210 to limit the left and right movement of the sheet material 500, a baffle plate 223 with inclined surfaces 226 at the two corners of the top, and a driving wheel 230 for driving the sheet material 500 to move.

[0045] See also Figures 3 to 5 The two corners of the top of the baffle are beveled to form two inclined surfaces 226. The ends of the two inclined surfaces 226 that are separated from each other are lower than the ends that are facing each other, so that the sheet material 500 with slightly drooping at both ends can fit on the two inclined surfaces 226. The inclined surfaces 226 are used to offset the drooping height of the left and right ends of the sheet material 500, so that the sheet material 500 can be smoothly introduced onto the subsequent driving wheel 230.

[0046] See also Figure 6 The stripping device 300 is arranged on the frame 100 and is located above the tray 210, including an adsorption belt 310 for adsorbing the front end of the sheet material 500 and a stripping cylinder 320 for adsorbing the rear end of the sheet material 500. The adsorption belt 310 is located between the driving wheel 230 and the stripping cylinder 320 to drive the sheet material 500 to fit the inclined surface 226 and then move to the driving wheel 230 to complete the feeding.

[0047] The feeding equipment includes a loading device 200 and a stripping device 300 arranged on the frame 100. The stripping device 300 is located above the tray 210 in the loading device 200. When the tray 210 for placing the sheet material 500 and capable of vertical movement moves to a preset height, the limit rod can limit the left and right movement of the sheet material 500, so that the sheet material 500 is neat. The two corners of the top of the baffle plate 223 abutting against the front end of the sheet material 500 are provided with inclined surfaces 226, so that the single sheet material 500 sucked up by the stripping cylinder 320 can be attached to the inclined surface 226 under the drive of the subsequent adsorption belt 310, and the sheet material 500 can be transported to the driving wheel 230 through the inclined surface 226 to complete the feeding. Such a configuration can avoid the problem of paper jam and shutdown caused by collision between the sheet material 500 and the limit baffle during the stripping and conveying process.

[0048] Preferably, the limit rod includes a left limit 221 and a right limit 222, the left limit 221 is connected to a first hand wheel 224, and the right limit 222 is connected to a second hand wheel 225, the first hand wheel 224 and the second hand wheel 225 can drive the left limit 221 and the right limit 222 to move closer to and away from each other to limit the movement of the stacked sheet 500.

[0049] In this embodiment, the left limit 221 and the right limit 222 can be driven to move by rotating the first hand wheel 224 and the second hand wheel 225. The distance between the left limit 221 and the right limit 222 is consistent with the distance between the left and right sides of the sheet 500 to limit the left and right movement of the stacked sheet 500. For example, when the first hand wheel 224 rotates clockwise, the left limit 221 moves toward the right limit 222; when the first hand wheel 224 rotates counterclockwise, the left limit 221 moves away from the right limit 222.

[0050] Preferably, the loading device 200 also includes a rack 240, a first motor 250 and a second motor. The tray 210 is connected to the top of the rack 240. The output end of the first motor 250 is provided with a gear that can engage with the rack 240 to drive the tray 210 to move along the extension direction of the rack 240. A pressure wheel 260 is provided above the driving wheel 230. The second motor is used to drive the driving wheel 230 to rotate, so as to drive the sheet 500 located between the pressure wheel 260 and the driving wheel 230 to move to the subsequent process.

[0051] Specifically, the tray 210 is connected to the top of the rack 240, and the rack 240 can mesh with the gear mounted on the output end of the first motor 250. The gear is driven to rotate by the first motor 250, thereby driving the rack 240 and the tray 210 to rise and fall vertically. When lowering, it is used to place the sheet 500. When raising, it is used to drive the sheet 500 to a preset position. The second motor can drive the driving wheel 230 to rotate, so as to drive the sheet 500 located between the pressure wheel 260 and the driving wheel 230 to move to the subsequent process.

[0052] See also Figure 7 and Figure 8 Preferably, the stripping cylinder 320 is connected to the frame 100 through a guide rod 330, and the guide rod 330 can drive the stripping cylinder 320 to approach and move away from the adsorption belt 310. The stripping device 300 also includes a spring sheet 340, a rear limit group 350, two groups of first blowing components for blowing up the rear end of the sheet material 500, and two groups of second blowing components for blowing up the front end of the sheet material 500. The rear limit group 350 and the baffle plate 223 are used for front and rear limit of the sheet material 500. The spring sheet 340 is attached to the upper surface of the uppermost sheet material 500 so that the stripping cylinder 320 can adsorb When the sheet material 500 is blown up by the first blowing assembly, the lower layer of the sheet material 500 is restricted from detaching. The adsorption belt 310 is provided with a plurality of negative pressure holes for adsorbing the sheet material 500 blown up by the second blowing assembly. The first blowing assembly includes a first air outlet pipe 361 and a first air blowing valve 362 for controlling the gas flow of the first air outlet pipe 361. The second blowing assembly includes a second air outlet pipe 371 and a second air blowing valve 372 for controlling the gas flow of the second air outlet pipe 371. The axes of all the first air outlet pipes 361 are parallel to each other, and the axes of all the second air outlet pipes 371 are consistent.

[0053] It can be understood that the two sets of first air outlet pipes 361 arranged in parallel in the first blowing assembly are used to blow up the rear end of the sheet 500, and the gas flows from the rear end of the sheet 500 to the front end of the sheet 500 to make the sheet 500 fluffy so that the stacked sheets 500 have a certain space to reduce mutual contact and adsorption. The stripping cylinder 320 adsorbs the rear end of the top sheet 500 blown up by the first blowing assembly, and the spring sheet 340 attached to the upper surface of the top sheet 500 restricts the lower sheet 500 from detaching, so as to avoid the stripping cylinder 320 adsorbing two sheets 500 at the same time. Afterwards, when the stripping cylinder 320 puts down the adsorbed sheet 50 At 0, the adsorption belt 310 provided with a plurality of negative pressure holes sucks up the front end of the sheet material 500, there are multiple small holes and all are connected to the vacuum tube 390 in a negative pressure state, and the adsorption belt 310 rotates to drive the sheet material 500 adsorbed by it to move and enter the subsequent process, wherein, when the adsorption belt 310 adsorbs the sheet material 500, all the second air outlet pipes 371 of the two groups of second blowing assemblies blow air toward each other, and the gas flows from the left and right sides of the sheet material 500 to the middle part of the sheet material 500, so as to promote the adsorption process of the front end of the sheet material 500 by the adsorption belt 310, and the first blowing valve 362 and the second blowing valve 372 are used to control the gas flow rate.

[0054] It should be noted that the stripping cylinder 320 is connected to the frame 100 through the guide rod 330. The stripping cylinder 320 is installed at different positions of the guide rod 330 to change the distance between the stripping cylinder 320 and the adsorption belt 310, thereby adapting to sheets 500 of various sizes. The stripping cylinder 320 includes a cylinder body 321 and a suction cup 322 located at the bottom of the cylinder body 321. The suction cup 322 is in a negative pressure environment to complete the adsorption process of the tail end of the sheet 500.

[0055] There are two groups of rear limit groups 350, which are respectively arranged at the left and right ends of the sheet material 500, and both include a first limit column and a second limit column arranged vertically. The first limit column abuts against the rear end of the sheet material 500, and is used to cooperate with the baffle plate 223 to limit the front and rear positions of the sheet material 500. The second limit column is spaced apart from the first limit column and can contact the upper surface of the sheet material 500 to prevent the end of the sheet material 500 from tilting. The spring sheet 340 is preferably located between the two groups of rear limit groups 350, and is used to fit the middle part of the rear end of the sheet material 500.

[0056] In addition, the peeling device 300 also includes a photoelectric sensor 380 for detecting the height of the sheet material 500, and the photoelectric sensor 380 is connected to the first motor 250; when the height of the sheet material 500 is lower than the first preset height, the photoelectric sensor 380 controls the first motor 250 to operate so that the tray 210 moves up; when the height of the sheet material 500 is not lower than the first preset height, the photoelectric sensor 380 controls the first motor 250 to pause, and the tray 210 is relatively fixed. Preferably, the height difference between the first preset height and the bottom end of the adsorption belt 310 is H, and this height can be adjusted according to actual conditions as long as the above purpose can be achieved.

[0057] See also Fig. 9 and Fig.10Preferably, the feeding device further comprises a deviation correction device 400, which is arranged on the frame 100 and located on the side of the driving wheel 230 away from the stripping device 300, and comprises a guide assembly 410, a distance correction assembly and a positioning sensor 430. The guide assembly 410 drives the sheet 500 after the driving wheel 230 to align left and right and then convey it to the distance correction assembly. The positioning sensor 430 can detect the position of the sheet 500 so that the distance correction assembly adjusts the distance between the front and rear adjacent sheets 500. The guide assembly 410 comprises a conveyor belt 411, an upper limit plate 412, a guide surface 413 and a guide parallel to the guide surface 413. The guide strip 414, the conveyor belt 411 and the guide strip 414 are arranged at an angle to drive one side of all the sheets 500 to fit against the guide surface 413. The upper limit plate 412 is located above the guide strip 414 to prevent the sheets 500 that fit against the guide surface 413 from warping. A cover plate 415 capable of pressing the sheets 500 is arranged above the conveyor belt 411. The guide assembly 410 also includes an adjusting rod 416 capable of adjusting the distance between the cover plate 415 and the upper limit plate 412. A plurality of cylinders 417 are arranged on the cover plate 415. Balls 418 capable of fitting against the sheets 500 are arranged in the cylinders 417.

[0058] The sheet material 500 is conveyed forward above the conveyor belt 411 and driven by the conveyor belt 411. A plurality of cylinders 417 are installed on the cover plate 415 so that the ball bearings 418 in the cylinders 417 are pressed on the sheet material 500 so that the sheet material 500 has a certain pressure on the conveyor belt 411, so as to enhance the friction between the sheet material 500 and the conveyor belt 411 during the conveying process, and can avoid the sheet material 500 from slipping or jamming during the conveying process. Among them, the conveyor belt 411 and the guide strip 414 are arranged at a certain angle so that one side of the sheet material 500 can contact the guide surface 413 during the forward conveying of the sheet material 500, so that the sheet material 500 is aligned left and right. The upper limit plate 412 is located above the sheet material 500 to prevent the sheet material 500 from warping and jamming. The width of the guide assembly 410 can be adjusted by the adjusting rod 416 to adapt to the conveying of sheets 500 of various widths.

[0059] Preferably, the correction assembly includes a feed correction roller 421 and an upper pressure roller 422 spaced apart from each other, the upper pressure roller 422 is used to press the sheet 500 between the feed correction roller 421 and the upper pressure roller 422, and the feed correction roller 421 is used to adjust the distance between the pressed sheet 500 and the adjacent sheet 500.

[0060] The feed correction roller 421 can correct the front and rear sheets 500 to an equal spacing, so that the subsequent sleeve cutting is accurate. The upper pressure roller 422 can increase the friction of the sheet 500 to ensure that the sheet 500 does not slip when moving at high speed, thereby ensuring the subsequent cutting accuracy.

[0061] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0062] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0063] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A feeding device, characterized in that: include: Frame (100); A loading device (200) is arranged on the frame (100), comprising a tray (210) for placing the sheet material (500) and capable of vertical movement, a limit rod passing through the tray (210) to limit the left and right movement of the sheet material (500), a baffle plate (223) having inclined surfaces (226) at two corners of the top end, and a driving wheel (230) for driving the sheet material (500) to move; The stripping device (300) is arranged on the frame (100) and located above the tray (210), and comprises a suction belt (310) for sucking the front end of the sheet material (500) and a stripping cylinder (320) for sucking the rear end of the sheet material (500). The suction belt (310) is located between the driving wheel (230) and the stripping cylinder (320) to drive the sheet material to adhere to the inclined surface (226) and then move to the driving wheel (230) to complete the feeding.

2. The feeding device according to claim 1, characterized in that: It also includes a deviation correction device (400), which is arranged on the frame (100) and located on the side of the driving wheel (230) away from the stripping device (300), and includes a guide component (410), a distance correction component and a positioning sensor (430). The guide component (410) drives the sheet (500) after passing the driving wheel (230) to be aligned left and right and then transported to the distance correction component. The positioning sensor (430) can detect the position of the sheet (500) so that the distance correction component can adjust the distance between the front and rear adjacent sheets (500).

3. The feeding device according to claim 1, characterized in that: The limit rod comprises a left limit (221) and a right limit (222); the left limit (221) is connected to a first hand wheel (224); the right limit (222) is connected to a second hand wheel (225); the first hand wheel (224) and the second hand wheel (225) are capable of driving the left limit (221) and the right limit (222) to move closer to and farther from each other, so as to limit the movement of the stacked sheets (500).

4. The feeding device according to claim 2, characterized in that: The loading device (200) further comprises a rack (240), a first motor (250) and a second motor; the tray (210) is connected to the top end of the rack (240); the output end of the first motor (250) is provided with a gear that can mesh with the rack (240) to drive the tray (210) to move along the extension direction of the rack (240); a pressure wheel (260) is provided above the driving wheel (230); the second motor is used to rotate the driving wheel (230) to drive the sheet (500) located between the pressure wheel (260) and the driving wheel (230) to move to the deviation correction device (400).

5. The feeding device according to claim 3, characterized in that: The stripping cylinder (320) is connected to the frame (100) via a guide rod (330), and the guide rod (330) can drive the stripping cylinder (320) to approach and move away from the adsorption belt (310). The stripping device (300) further comprises a spring sheet (340), a rear limiter group (350), two groups of first blowing assemblies for blowing up the rear end of the sheet material (500), and two groups of second blowing assemblies for blowing up the front end of the sheet material (500). The limiting group (350) and the baffle plate (223) are used for front and rear limiting of the sheet material (500); the spring sheet (340) is attached to the upper surface of the uppermost sheet material (500) so that when the stripping cylinder (320) adsorbs the sheet material (500) blown up by the first blowing component, the lower sheet material (500) is restricted from detaching; the adsorption belt (310) is provided with a plurality of negative pressure holes for adsorbing the sheet material (500) blown up by the second blowing component.

6. The feeding device according to claim 5, characterized in that: The first air blowing assembly comprises a first air outlet pipe (361) and a first air blowing valve (362) for controlling the gas flow of the first air outlet pipe (361); the second air blowing assembly comprises a second air outlet pipe (371) and a second air blowing valve (372) for controlling the gas flow of the second air outlet pipe (371); the axes of all the first air outlet pipes (361) are parallel to each other, and the axes of all the second air outlet pipes (371) are consistent.

7. The feeding device according to claim 4, characterized in that: The stripping device (300) further comprises a photoelectric sensor (380) for detecting the height of the sheet (500), wherein the photoelectric sensor (380) is connected to the first motor (250); When the height of the sheet (500) is lower than a first preset height, the photoelectric sensor (380) controls the first motor (250) to operate, so that the tray (210) moves upward; When the height of the sheet (500) is not lower than a first preset height, the photoelectric sensor (380) controls the first motor (250) to pause, and the tray (210) is relatively fixed.

8. The feeding device according to claim 2, characterized in that: The guide assembly (410) comprises a conveyor belt (411), an upper limit plate (412), a guide surface (413) and a guide strip (414) parallel to the guide surface (413); the conveyor belt (411) and the guide strip (414) are arranged at an angle to drive one side of all the sheets (500) to be attached to the guide surface (413); the upper limit plate (412) is located above the guide strip (414) to prevent the sheets (500) attached to the guide surface (413) from warping; a cover plate (415) capable of pressing the sheets (500) is provided above the conveyor belt (411); and the guide assembly (410) further comprises an adjustment rod (416) capable of adjusting the distance between the cover plate (415) and the upper limit plate (412).

9. The feeding device according to claim 2, characterized in that: The distance correction component comprises a feed deflection correction roller (421) and an upper pressing roller (422) which are arranged at an interval up and down, the upper pressing roller (422) being used to press the sheet material (500) between the feed deflection correction roller (421) and the upper pressing roller (422), and the feed deflection correction roller (421) being used to adjust the distance between the pressed sheet material (500) and an adjacent sheet material (500).

10. The feeding device according to claim 8, characterized in that: A plurality of cylinders (417) are provided on the cover plate (415), and each of the cylinders (417) has a rolling ball (418) inside it that can fit the sheet material (500).

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