A waste removal apparatus and method of conveying

Abstract

The application discloses a kind of waste removal equipment and conveying method, including platform, input, output, control unit, input is set to the front end of the platform, output is set to the rear end of platform, and input, output are respectively electrically connected with control unit, the top of platform is liftablely provided with several upper pins, the lower of platform is liftablely provided with several lower pins, the diameter of upper pin is 2mm-3mm, input is used to send printed product into between upper pin and lower pin, to make several upper pins drop when press the waste edge of printed product, and several lower pins rise when printed product is lifted and separated from waste edge, and waste edge is sent out the platform by output, the thickness of printed product is 5.4mm-75mm each time stack, and positioning module is provided on platform, for positioning printed product. The present application realizes full-automatic conveying and removing waste edge, makes the waste edge of printed product more fine, saves layout space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste removing machines, in particular to a waste removing device and a conveying method. BACKGROUND

[0002] The waste edge cleaning of printed products in the printing and packaging industry is called waste removing, which is a necessary procedure for the edge forming process of printed products. The emergence of waste removing machines has replaced manual hammer waste removing, not only reducing labor intensity, but also improving work efficiency.

[0003] At present, Japanese equipment uses two sets of top pins to complete the waste removing work of printed products. The number of top pins required is quite large, the production of finished products is huge, and the accuracy of the equipment is high, the fault tolerance is low, the installation steps of the top pins are too complicated, and the replacement is quite difficult, which takes half a day to install. The push pin position is controlled by a baffle, and the top pin of the Japanese equipment needs to be pushed from top to bottom. Since the waste removing machine often stacks a large number of printed products at a time, the top pin needs to bear a large force, so it is not possible to use a top pin with a small diameter. However, in order to save the layout space of printed products, generally only 2-3mm of waste edge is reserved after die cutting of printed products, and a large diameter top pin is easy to press the printed product and the waste edge, which causes the printed product and the waste edge to be unable to separate smoothly or the printed product and the waste edge to be unable to separate completely. If a top pin of a corresponding size is used for the waste edge of this size, the load of the top pin will be too large and the top pin will be bent and deformed. If the number of printed products stacked is reduced to reduce the load of the top pin, it will make the worker stack the printed products more frequently, which not only greatly increases the labor intensity of the worker, but also greatly reduces the waste removing efficiency. Therefore, there is an urgent need for a structure that can automatically transport printed products to the waste removing station and automatically send the waste edge away from the waste removing station.

[0004] At present, the conveyor belt is the most suitable for carrying and conveying goods. However, the traditional conveyor belt has a ring structure, which drives the conveyor belt to rotate by using main and auxiliary drive rollers. Although the conveyor belt can realize automatic conveying of printed products, the lower top pin needs to be lifted to lift the printed product, which makes it impossible to directly set the lower top pin in the conveyor belt. If the traditional conveyor belt is used, the length of the lower top pin needs to be higher than the distance between the upper belt and the lower belt of the conveyor belt to completely pass through the conveyor belt. However, the length of the lower top pin is too long, which greatly reduces the load capacity and easily causes the lower top pin to bend and deform when lifting the printed product. Therefore, the traditional conveyor belt is not suitable for the upper and lower top pin waste removing equipment.

[0005] In addition, the conveyor belt cannot guarantee accurate transmission ratio, and the conveyor belt is prone to slack under long-time work, thereby generating errors. The conveyor belt cannot accurately convey the printed products to the corresponding position, which easily causes the top pin to be unable to align with the waste edge of the printed product, thereby causing the waste edge to be unable to completely separate from the printed product. SUMMARY

[0006] The technical problem to be solved by the embodiments of the present application is to provide a waste cleaning device and a conveying method, which realize full-automatic conveying of printed products and waste edge cleaning functions, have high conveying precision, and can make the diameter of the lower ejector pin as small as 2mm-3mm, so that the waste edge of the printed product is reserved to be thinner, and the printing layout space is greatly saved, and material is saved.

[0007] To achieve the above object, the present application discloses a waste cleaning device, which comprises a platform, an input end, an output end, the input end is arranged at the front end of the platform, the output end is arranged at the rear end of the platform, and the input end and the output end are respectively electrically connected with a control unit, a movable upper die needle plate is arranged above the platform, a plurality of upper ejector pins are inserted into the upper die needle plate, a plurality of lower ejector pins are arranged below the platform, the diameter of the upper ejector pin is 2mm-3mm, the input end is used for feeding the printed product between the upper ejector pins and the lower ejector pins, so that the waste edge of the printed product is pressed by the plurality of upper ejector pins when the plurality of upper ejector pins are lowered, and the printed product is lifted by the plurality of lower ejector pins when the plurality of lower ejector pins are raised, so as to separate the printed product from the waste edge, and the thickness of the printed product is 5.4mm-75mm each time.

[0008] Further, a sheet belt is arranged between the input end and the output end, a plurality of pin holes are arranged on the surface of the platform in an array, a plurality of through holes are arranged on the surface of the sheet belt corresponding to the plurality of pin holes, the printed product is fed onto the platform through the input end and the sheet belt, or the waste edge is fed out of the platform through the output end and the sheet belt.

[0009] Further, the input end comprises a return main roller, the return main roller is rotatably arranged at the front end of the platform, one end of the sheet belt is wound on the return main roller, and the return main roller is driven to rotate through the return driving device.

[0010] The output end comprises a departure main roller, the departure main roller is rotatably arranged at the rear end of the platform, the other end of the sheet belt is wound on the departure main roller, and the departure main roller is driven to rotate through the departure driving device.

[0011] So that the sheet belt makes horizontal reciprocating motion in the plane under the linkage of the return main roller and the departure main roller, and the printed product is conveyed to the waste cleaning station for waste cleaning work.

[0012] Further, the outer diameter of the upper ejector pin is 2mm, and the length is 85mm-163mm, and the thickness of the paper stack pierced by the upper ejector pin is 5.4mm-18.6mm.

[0013] Further, the upper ejector pin has an outer diameter of 3mm and a length of 85mm-163mm, and the paper stack thickness penetrated by the upper ejector pin is 5.4mm-75mm.

[0014] By setting the different specifications of the ejector pins, the present application can meet the waste removal work of a certain number of stacks, and the sheet-shaped belt continuously reciprocates to automatically convey the printed products of a certain number of stacks, which not only ensures the load capacity of the ejector pins and prevents the ejector pins from being bent and deformed, but also saves the layout space and saves materials.

[0015] Further, the upper die needle plate is provided with a plurality of insertion holes matched with the size of the upper ejector pin, and the spacing between any adjacent insertion holes is 0.5mm-7mm.

[0016] Further, the platform is provided with a positioning module for positioning the printed products, the positioning module comprising an encoder disc and a displacement detection module, the encoder disc being fixedly arranged on the end of the return main roller and the outgoing main roller, and the displacement detection module being arranged opposite to the encoder disc and fixedly arranged on the return driving device and the outgoing driving device, for obtaining the absolute position information of the return main roller and the outgoing main roller, so that the sheet-shaped belt can be accurately conveyed, and the printed products can reach the designated station, thereby greatly improving the waste removal precision.

[0017] Further, the positioning module comprises a positioning detection module, and the positioning detection module is arranged at the head and tail of the platform, and the sheet-shaped belt is provided with a positioning hole, so that the positioning detection module can position the positioning hole on the sheet-shaped belt, and the positioning detection module can further ensure that the through hole of the sheet-shaped belt is aligned with the needle hole on the platform, avoid the deviation between the through hole and the needle hole caused by the error of the sheet-shaped belt, and ensure the stability of the waste removal work.

[0018] Further, the platform is provided with a visual monitoring module for obtaining the image information of the through hole on the sheet-shaped belt, and comparing the error value between the through hole and the needle hole according to the image information, so that the visual detection module can realize the accurate alignment of the through hole of the sheet-shaped belt and the needle hole of the platform, and ensure the stability of the waste removal work.

[0019] Further, a control unit is further included, which is electrically connected with the displacement detection module, the positioning module and the visual monitoring module, so that the control unit adjusts the moving distance of the sheet-shaped belt in the return or go direction according to the size of the printed product, and performs displacement compensation on the sheet-shaped belt according to the error value obtained by the visual monitoring module, so as to ensure that the sheet-shaped belt can accurately deliver the printed product from the paper receiving station to the waste removing station, and the through hole of the sheet-shaped belt and the pinhole can be kept in alignment, and the linkage between the control unit and the positioning module and the visual monitoring module can realize accurate control of the sheet-shaped belt.

[0020] The application further provides a transmission method, comprising the following steps:

[0021] S101, the printed product on the paper receiving station is taken by the sheet-shaped belt, the go main roller and the return main roller are synchronously rotated in the go direction, the sheet-shaped belt is pulled to move horizontally in the go direction by a set distance, and the printed product is delivered to the waste removing station;

[0022] S102, the waste edge of the printed product is pressed by the descending upper pins, and the printed product is lifted by the descending lower pins passing through the through hole of the sheet-shaped belt, so that the printed product is separated from the waste edge;

[0023] S103, after the printed product is separated from the waste edge, the upper pins are lifted and reset, the printed product without the waste edge is delivered by the paper collecting equipment, and the lower pins are lowered and reset;

[0024] S104, the go main roller and the return main roller are continuously synchronously rotated in the go direction, the sheet-shaped belt is pulled to move horizontally in the go direction by a set distance, and the sheet-shaped belt delivers the waste edge out of the waste removing station;

[0025] S105, finally, the return main roller and the go main roller are synchronously rotated in the return direction, the sheet-shaped belt is pulled to move horizontally in the return direction by a set distance, and the sheet-shaped belt returns to the paper receiving station to continue to receive the next printed product.

[0026] Compared with the prior art, the application has the following beneficial effects:

[0027] (1) The small size of the upper and lower ejector pins and the arrangement can not only meet the waste removal work of closely arranged products, but also make the position of the ejector pin layout more flexible, better match the shape of the printed product, and greatly increase the stress area of the ejector pin. The greater the stress area of the ejector pin, the smaller the pressure of the same force it receives, so that the ejector pin is not easy to deform.(2) The horizontal reciprocating motion of the sheet belt in the present application realizes the full-automatic conveying and waste edge removal of the printed product. Not only the conveying precision is high, but also the production efficiency is greatly improved, the conveying efficiency of the printed product is improved, and the labor intensity is reduced.(3) The sheet belt used in the present application can greatly shorten the length of the lower ejector pin, not only improve the load capacity of the ejector pin, but also avoid the bending deformation caused by the small diameter and long length of the upper and lower ejector pins, so that the waste edge of the printed product is reserved more finely, the printing layout space is greatly saved, and the material is saved.(4) The positioning module and the visual monitoring module are used to improve the conveying precision of the sheet belt, so that the through hole of the sheet belt and the needle hole of the platform can be kept in alignment, the situation that the sheet belt blocks the needle hole is avoided, and the stability of the work is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the structure of the platform;

[0030] Figure 3 It is a schematic diagram of the structure of the sheet belt;

[0031] Figure 4 It is a side view of the structure of the sheet belt. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.

[0033] Referring to Figure 1 , Figure 2 , a waste removal device includes a platform 1, an input end 3, an output end 4, a control unit, the input end 3 is arranged at the front end of the platform 1, the output end 4 is arranged at the rear end of the platform 1, and the input end 3 and the output end 4 are respectively electrically connected with the control unit. The sheet belt 2 is arranged between the input end 3 and the output end 4, so that the printed product on the paper receiving station is sent into the platform 1 or the waste edge separated from the printed product on the waste removal station is sent out of the platform 1 by cooperating the sheet belt 2 with the input end 3 or the output end 4.

[0034] The paper receiving station in the present embodiment can refer to a paper stack separating and conveying device with a publication number of CN222042138U of Chinese utility model patent, which is not repeated here, so as to realize the separation and conveying of the printed product into the sheet belt.

[0035] In the embodiment, the input end 3 comprises a return main roller 31 and a return secondary roller 32, the return main roller 31 is rotationally arranged on the front end of the platform 1, the return secondary roller 32 is arranged in parallel above the return main roller 31 and rotationally connected with the front end of the platform 1, a return driving device is fixedly installed in the platform 1, and the return driving device preferably adopts a servo motor in the embodiment, and an output shaft of the servo motor is in transmission connection with the return main roller 31.

[0036] The output end 4 comprises a departure main roller 41 and a departure secondary roller 42, the departure main roller 41 is rotationally arranged on the rear end of the platform 1, the departure secondary roller 42 is arranged in parallel above the departure main roller 41 and rotationally connected with the rear end of the platform 1, a departure driving device is fixedly installed in the platform 1, and the departure driving device preferably adopts a servo motor in the embodiment, and an output shaft of the servo motor is in transmission connection with the departure main roller 41.

[0037] Further, one end of the sheet-shaped belt 2 is wound on the return main roller 31 via the return secondary roller 32, and the other end of the sheet-shaped belt is wound on the departure main roller 41 via the departure secondary roller 42.

[0038] During departure, the departure driving device drives the departure main roller 41 to rotate to wind the sheet-shaped belt 2, and the return driving device drives the return main roller 31 to rotate synchronously and in the same direction with the departure main roller 41 to unwind the sheet-shaped belt 2, so that the sheet-shaped belt 2 moves horizontally in the departure direction.

[0039] During return, the return driving device drives the return main roller 31 to rotate to wind the sheet-shaped belt 2, and the departure driving device drives the departure main roller 41 to rotate synchronously and in the same direction with the return main roller 31 to unwind the sheet-shaped belt 2, so that the sheet-shaped belt 2 moves horizontally in the return direction.

[0040] Such repeated circulation realizes horizontal reciprocating motion of the sheet-shaped belt in the plane, continuously sends the printed products on the paper receiving station to the waste removing station for waste removing work, compared with the rotation motion of the traditional annular belt, the embodiment avoids the error caused by relaxation of the traditional annular belt after long time work, solves the problem of correspondence of pinholes on the upper and lower surfaces of the annular belt, and greatly shortens the length of the ejector pin, further reduces the accumulated error caused by deformation of the belt, and avoids the problem that the through hole of the belt cannot correspond to the pinhole of the platform.

[0041] Reference Figure 2 , Figure 3As shown, a plurality of pinholes 11 are arranged on the surface of the platform 1 in the embodiment, and a plurality of through holes 21 corresponding to the pinholes are arranged on the surface of the sheet-shaped belt 2, the inner diameter of the through holes 21 is larger than that of the pinholes 11, so as to compensate for the error of the sheet-shaped belt 2 in the conveying process, avoid the sheet-shaped belt 2 from blocking the pinholes 11 on the platform 1, and a plurality of lower ejector pins are arranged under the surface of the sheet-shaped belt 2 in a liftable manner, a plurality of upper ejector pins are arranged above the platform 1 in a liftable manner, an upper ejector pin plate is arranged above the platform 1, and a downward pressing driving device is arranged on the platform 1, which is preferably a pneumatic cylinder, the telescopic end of which is fixedly connected with the upper ejector pin plate, and an upper die pin plate is slidably arranged on the upper ejector pin plate, a plurality of insertion holes matched with the size of the upper ejector pins are arranged on the upper die pin plate in a matrix manner, so as to enable the plurality of upper ejector pins to be inserted into the upper die pin plate according to the shape of the printed product, and the distance between any adjacent insertion holes is 0.5mm-7mm, and a lower ejector pin plate is arranged below the platform 1, and an upper ejector driving device is fixedly installed on the platform, which is preferably a pneumatic cylinder, the telescopic end of which is fixedly connected with the lower ejector pin plate, and a lower die pin plate is arranged on the lower ejector pin plate, and a plurality of lower ejector pins are inserted into the lower die pin plate according to the pattern of the printed product.

[0042] When the printed product on the sheet-shaped belt 2 reaches the waste removing station, the upper ejector pins are lowered to press the waste edge of the printed product, and the lower ejector pins are raised to lift the printed product, so as to separate the printed product from the waste edge, and the printed product after removing the waste edge is taken away from the platform by a paper collecting device, and the sheet-shaped belt is driven by the go-away driving device to send the waste edge on the waste removing station out of the platform, and the paper collecting device in the embodiment can refer to the lower paper conveying device for ejector waste removing in the Chinese utility model patent with the publication number CN222079467U, which will not be repeated here.

[0043] Further, the parameters of the printed product in the embodiment are taken as an example of 400g / m 2 paper, and the thickness of the printed product stacked each time is 5.4mm-75mm, the outer diameter of the upper ejector pin is 2mm-3mm, and the length thereof is 85mm-163mm, and the upper ejector pins with different lengths of 2mm and 3mm are tested in the embodiment, the number of papers that the upper ejector pin can penetrate is tested in a superimposed manner until the upper ejector pin is bent, and the test results are as follows:

[0044] As shown in Table 1, the upper ejector pin with an outer diameter of 2mm and a length of 85mm has a limit load of 808N, and the thickness of the paper pile that can be penetrated is 18mm, which is suitable for the waste removing work of the printed product with a stacking number of <30.

[0045] Table 1:

[0046]

[0047] Table 2:

[0048]

[0049] As shown in Table 3, the upper ejector pin with an outer diameter of 2 mm and a length of 163 mm has a limit load of 295 N, can penetrate a paper stack with a thickness of 5.4 mm, and is suitable for waste removal work for a stack of printed products < 9 sheets.

[0050] Table 3:

[0051]

[0052] Table 4:

[0053]

[0054] As shown in Table 5, the upper ejector pin with an outer diameter of 3 mm and a length of 85 mm has a limit load of 3.01 KN, can penetrate a paper stack with a thickness of 75 mm, and is suitable for waste removal work for a stack of printed products < 125 sheets.

[0055] Table 5:

[0056]

[0057] Table 6:

[0058]

[0059] As shown in Table 7, the upper ejector pin with an outer diameter of 3 mm and a length of 163 mm has a limit load of 1.72 KN, can penetrate a paper stack with a thickness of 48.6 mm, and is suitable for waste removal work for a stack of printed products < 81 sheets.

[0060] Table 7:

[0061]

[0062] Table 8:

[0063]

[0064] As can be seen from the above, the embodiment can meet the waste removal work for a waste edge of 2-3 mm, make the waste edge of the printed product thinner, greatly save the layout space and material, and the ejector pins of different specifications can meet the waste removal work for a certain number of stacks, and the sheet-shaped belt continuously automatically conveys the printed products of a certain number of stacks to the waste removal work, without manual manual placement in the waste removal machine, greatly improving the waste removal efficiency, and a small amount of multiple batches of conveying can reduce the number of ejector pins, reduce the cost, and reduce the load of the ejector pins.

[0065] And the use of sheet-shaped belts can greatly shorten the length of the lower ejector pin, not only improving the load capacity of the lower ejector pin, but also preventing the lower ejector pin from bending and deforming due to its excessive length.

[0066] Furthermore, the outer diameter of the existing upper ejector pin is mostly 5mm, and the upper ejector pin is provided with a cap with an outer diameter of 8mm, the distance between any adjacent cap covers of the upper ejector pin is 0.5mm, and the total distance between any adjacent upper ejector pins is 16.5mm, which cannot be applied to the waste removal process of closely arranged products.

[0067] Compared with the existing 5mm upper ejector pin, the present embodiment adopts a 3mm outer diameter upper ejector pin and is inserted into a 4.2mm center distance socket, wherein the 3mm specification upper ejector pin is provided with a 4mm cap, and the distance between the cap covers of the 3mm specification upper ejector pin is 0.2mm, so that 4 3mm specification upper ejector pins can be accommodated within the length range of two 5mm specification ejector pins, or 4 3mm specification upper ejector pins can also be accommodated within the width range of two 5mm specification ejector pins, so that 16 3mm specification upper ejector pins can be inserted within the range of 272.25mm 2 .

[0068] Alternatively, the present embodiment adopts a 2mm outer diameter upper ejector pin and is inserted into a 2.6mm center distance socket, which is provided with a 2.5mm cap on the upper part, and the distance between the cap covers of the 2mm specification upper ejector pin is 0.1mm, and the cap area of the 2.5mm outer diameter is about 4.9mm, so that 21 2mm specification upper ejector pins can be accommodated within the length range of two 5mm specification ejector pins, or 21 3mm specification upper ejector pins can also be accommodated within the width range of two 5mm specification ejector pins, so that 42 2mm specification upper ejector pins can be inserted within the range of 272.25mm 2 .

[0069] Based on the above specification of the ejector pin, the stress area A of 16 3mm upper ejector pins in the present embodiment is 113.04mm 2 , and the force F acting on the upper ejector pin is taken as an example of 3.01KN, and the resulting pressure S is about 26.63Pa, or the stress area A of 42 2mm upper ejector pins is 131.88mm 2 , and the force F acting on the upper ejector pin is taken as an example of 3.01KN, and the resulting pressure S is about 22.82Pa, and the stress area A of the existing 5mm specification ejector pin is 39.25mm 2, the force F received is taken as an example of 3.01 KN, and the pressure S generated is about 76.69 Pa. From the above calculation, it can be seen that the pressure received by the 3mm specification ejector pin is about one third of the 5mm specification, and the pressure received by the 2mm specification is close to one fourth of the 5mm specification. The smaller the size, the greater the pressure that can be withstood. Under the same conditions, the ejector pin can be made longer, overcoming the traditional technical prejudice that the thicker the ejector pin, the greater the force it can withstand.

[0070] It can be seen that through the above arrangement, not only can the waste removal work of closely arranged products be met, but also the force receiving area of the ejector pin is greatly increased. The greater the force receiving area of the ejector pin, the smaller the pressure it receives under the same force, so that the ejector pin is not easy to deform, and therefore the length of the ejector pin can be made longer, and the position of the small size ejector pin layout is more flexible, which can better match the shape of the printed product.

[0071] Further, the input end and the output end are respectively provided with a positioning module, the positioning module comprises an encoder disc and a displacement detection module, the encoder disc is fixedly arranged on the end of the return main roller 31 and the outgoing main roller 41, and the displacement detection module is arranged opposite to the encoder disc and is fixedly arranged on the return driving device and the outgoing driving device. In the embodiment, the displacement detection module preferably adopts an angular displacement sensor. The absolute position information of the return main roller 31 and the outgoing main roller 41 is detected by the displacement detection module and fed back to the control unit, so that the return driving device and the outgoing driving device respectively drive the return main roller and the outgoing main roller to rotate by a set angle, so as to ensure that the sheet-shaped belt can accurately deliver the printed product to the waste removal station, and the through hole of the sheet-shaped belt is on the same axis as the pinhole on the platform.

[0072] In the embodiment, the control unit is electrically connected with the displacement detection module, the return driving device and the outgoing driving device. The control unit preferably adopts a programmable logic controller. In the embodiment, the moving distance of the sheet-shaped belt in the return or outgoing direction can be adjusted according to the size of the printed product, so that the sheet-shaped belt can accurately deliver the printed product to the waste removal station or send the waste edge away from the platform 1 and the sheet-shaped belt 2 back to the original position.

[0073] For example, in the embodiment, the position of the receiving station is taken as the initial position. After the printed product to be removed is sent to the sheet-shaped belt, the outgoing driving device drives the outgoing main roller to rotate by a set angle n in the direction of the waste removal station, i.e. the rotating angle n required for the printed product to be delivered from the waste removal station to the waste removal station according to the size of the printed product, and the sheet-shaped belt is positioned by the positioning module, so that the sheet-shaped belt 2 accurately delivers the printed product to the waste removal station.

[0074] Further, in the embodiment, after the printed product is separated from the waste edge at the waste removal station, the waste edge needs to be sent out of the platform. Therefore, the outgoing driving device drives the outgoing main roller to continue to rotate by a set angle n in the outgoing direction1 the rotation angle n required for sending the scrap edge away from the platform 1 so that the scrap edge leaves the scrap edge cleaning station under the drive of the sheet belt 2.

[0075] After the separation of the printed product and the scrap edge is completed, the return driving device drives the return main roller to rotate in the return direction by a set angle n 2 , that is, the rotation angle n and the rotation angle n 1 are added to obtain the rotation angle n 2 , so that the sheet belt returns to the initial position to continue to receive the printed product to be cleaned.

[0076] In another embodiment, the positioning module includes a pair of positioning detection modules arranged at the beginning and end of the platform and electrically connected to the control unit, and the sheet belt is provided with a positioning hole. In this embodiment, the positioning detection module preferably uses an optical fiber sensor. When the positioning hole reaches the position of the positioning detection module during the return process of the sheet belt, the positioning detection module feeds back to the control unit, or when the positioning hole reaches the position of the positioning detection module during the outbound process of the sheet belt, the positioning detection module feeds back to the control unit. Then the return driving device and the outbound driving device stop acting to ensure that the sheet belt can accurately deliver the printed product to the designated position.

[0077] In another embodiment, the platform 1 is provided with a visual monitoring module. In this embodiment, the visual monitoring module is used to obtain image information of the through hole 21 on the sheet belt 2, and compare the error value between the through hole 21 and the pinhole 11 according to the image information, and feed back to the control unit. The error value fed back by the visual monitoring module is used to displace the sheet belt 2 by the return driving device and the outbound driving device, so as to ensure that the through hole on the sheet belt 2 can be aligned with the pinhole, avoid the pinhole being blocked by the sheet belt, and make the cleaning work more stable.

[0078] Referring to Figures 1-4 , the present application based on the above-mentioned scrap edge cleaning device also provides a conveying method, comprising the following steps:

[0079] S101, the printed product on the material receiving station is taken by the sheet belt, and the outbound main roller and the return main roller are synchronously rotated in the outbound direction to pull the sheet belt to move horizontally in the outbound direction by a set distance, so as to send the printed product to the scrap edge cleaning station.

[0080] In S101, the control unit moves the printed product to the scrap edge cleaning station according to the size of the printed product to set the rotation angle n required for the outbound driving device and the return driving device, so as to accurately control the sheet belt to send the printed product to the designated position.

[0081] S102, the upper ejector pins lower to press the waste edge of the printed product, and the lower ejector pins rise to lift the printed product through the through hole of the sheet belt, so that the printed product is separated from the waste edge.

[0082] In the embodiment, the through hole on the sheet belt and the pin hole on the platform are positioned by the positioning detection module or the visual monitoring module, and the control unit can control the return driving device and the away driving device to compensate according to the error between the through hole and the pin hole, so that the through hole and the pin hole are kept in alignment, and the pin hole of the platform is prevented from being blocked and the pin from being struck due to the error between the through hole and the pin hole of the sheet belt.

[0083] S103, after the printed product is separated from the waste edge, the upper ejector pins rise to reset, the printed product with the waste edge removed is sent out by the paper collecting equipment, and the lower ejector pins lower to reset.

[0084] S104, the away main roller and the return main roller continue to rotate in the away direction synchronously, the sheet belt is pulled to move horizontally in the away direction by a set distance, and the sheet belt sends the waste edge out of the waste edge removing station.

[0085] In S104, the control unit sets the rotation angle n required by the away driving device and the return driving device according to the size of the printed product 1 , so as to accurately control the sheet belt to send the waste edge out of the waste edge removing station.

[0086] S105, finally, the return main roller and the away main roller rotate in the return direction synchronously, the sheet belt is pulled to move horizontally in the return direction by a set distance, and the sheet belt returns to the receiving station to continue to receive the next printed product.

[0087] In S105, the control unit sets the rotation angle n required by the away driving device and the return driving device according to the rotation angle n 1 combined with the rotation angle n 2 , so as to accurately control the sheet belt to return to the receiving station.

[0088] Based on the above conveying method, the return driving device and the away driving device are used to drive the sheet belt, so that the sheet belt moves horizontally back and forth at a set position, realizing the functions of full-automatic conveying of the printed product and removal of the waste edge. The conveying precision is high, the production efficiency and the conveying efficiency of the printed product are greatly improved, and the labor intensity is reduced.

[0089] Of course, the above embodiment is only for illustrating the technical concept and characteristics of the present application, and its purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any modification made according to the spirit and essence of the main technical solution of the present application should be covered within the protection scope of the present application.

Claims

1. A waste removal apparatus, characterized in that, The utility model provides a printing product waste edge separating device, including platform (1), input end (3), output end (4), the input end (3) is located the front end of platform (1), the output end (4) is located the rear end of platform (1), and the input end (3), output end (4) are electrically connected with control unit respectively, the upper die needle plate is liftably arranged on the top of platform (1), a plurality of upper ejector pins are inserted in the upper die needle plate, a plurality of lower ejector pins are liftably arranged below platform (1), the diameter of upper ejector pin is 2mm-3mm, the input end (3) is used to send printing product into the upper ejector pin, lower ejector pin between to make a plurality of upper ejector pins drop when press the waste edge of printing product, and a plurality of lower ejector pins lift when printing product is lifted and separates with waste edge, and the thickness of printing product is stacked every time 5.4mm-75mm. The input end (3) and the output end (4) are provided with a sheet belt (2), a plurality of pinholes (11) are arranged on the surface of the platform (1), a plurality of through holes (21) are provided on the surface of the sheet belt (2) corresponding to the plurality of pinholes, the sheet belt (2) is driven by the input end (3) to send printing product into the platform (1), or the sheet belt (2) is driven by the output end (4) to send waste edge out of the platform (1). The input end (3) includes a return main roller (31), the return main roller (31) is rotatably arranged on the front end of the platform (1), one end of the sheet belt (2) is wound on the return main roller (31), and the return main roller (31) is driven to rotate by a return driving device. The output end (4) includes a departure main roller (41), the departure main roller (41) is rotatably arranged on the rear end of the platform (1), the other end of the sheet belt (2) is wound on the departure main roller (41), and the departure main roller (41) is driven to rotate by a departure driving device. So that the sheet belt (2) makes horizontal reciprocating motion in the plane under the linkage of the return main roller (31) and the departure main roller (41), and the printing product received by the receiving station is transported to the waste removing station for waste removing work.

2. A waste removal apparatus according to claim 1, wherein, The outer diameter of the upper ejector pin is 2mm, and the length is 85mm-163mm, and the thickness of the paper stack penetrated by the upper ejector pin is 5.4mm-18.6mm.

3. The waste removal apparatus of claim 1, wherein, The outer diameter of the upper ejector pin is 3mm, and the length is 85mm-163mm, and the thickness of the paper stack penetrated by the upper ejector pin is 5.4mm-75mm.

4. The waste removal apparatus of claim 1, wherein, A plurality of insertion holes matched with the size of the upper ejector pin are arranged on the upper die needle plate in matrix, and the spacing between any adjacent insertion holes is 0.5mm-7mm.

5. The waste removal apparatus of claim 1, wherein, The platform (1) is provided with a positioning module for positioning the printed product, the positioning module comprises an encoder disc and a displacement detection module, the encoder disc is fixedly arranged on the end of the return main roller (31) and the outgoing main roller (41), the displacement detection module is arranged opposite to the encoder disc and is fixedly arranged on the return driving device and the outgoing driving device respectively, and is used for acquiring the absolute position information of the return main roller (31) and the outgoing main roller (41).

6. The waste removal apparatus of claim 5, wherein, The positioning module comprises a pair of positioning detection modules which are arranged at the head and tail of the platform (1) respectively, and the sheet-shaped belt (2) is provided with a pair of positioning holes, so that the positioning detection modules position the positioning holes on the sheet-shaped belt (2).

7. The waste removal apparatus of claim 1, wherein, The platform (1) is provided with a visual monitoring module for acquiring image information of the through hole (21) on the sheet-shaped belt (2), and comparing the error value between the through hole (21) and the pinhole (11) according to the image information.

8. A conveying method for the waste removal apparatus according to claim 1, characterized in that, The method comprises the following steps: S101, the printed product on the material receiving station is taken by the sheet-shaped belt, the outgoing main roller and the return main roller rotate synchronously in the outgoing direction, the sheet-shaped belt is pulled to move horizontally in the outgoing direction by a set distance, and the printed product is sent to the waste removing station; S102, the upper pins are lowered to press the waste edge of the printed product, and the lower pins are raised to pass through the through hole of the sheet-shaped belt to lift the printed product, so that the printed product is separated from the waste edge; S103, after the printed product is separated from the waste edge, the upper pins are raised to reset, the printed product without the waste edge is sent out by the paper collecting equipment, and the lower pins are lowered to reset; S104, the outgoing main roller and the return main roller continue to rotate synchronously in the outgoing direction, the sheet-shaped belt is pulled to move horizontally in the outgoing direction by a set distance, and the sheet-shaped belt sends the waste edge out of the waste removing station; S105, finally, the outgoing main roller and the return main roller rotate synchronously in the return direction, the sheet-shaped belt is pulled to move horizontally in the return direction by a set distance, and the sheet-shaped belt returns to the material receiving station to continue to receive the next printed product.

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