WO2019042109A1 - 一种送纸装置 - Google Patents

一种送纸装置 Download PDF

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Publication number
WO2019042109A1
WO2019042109A1 PCT/CN2018/099593 CN2018099593W WO2019042109A1 WO 2019042109 A1 WO2019042109 A1 WO 2019042109A1 CN 2018099593 W CN2018099593 W CN 2018099593W WO 2019042109 A1 WO2019042109 A1 WO 2019042109A1
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WO
WIPO (PCT)
Prior art keywords
paper feeding
feeding device
paper feed
shaft
hinged
Prior art date
Application number
PCT/CN2018/099593
Other languages
English (en)
French (fr)
Inventor
唐灼林
吴永祥
Original Assignee
广东东方精工科技股份有限公司
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Application filed by 广东东方精工科技股份有限公司 filed Critical 广东东方精工科技股份有限公司
Publication of WO2019042109A1 publication Critical patent/WO2019042109A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/10—Suction rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0607—Rollers or like rotary separators cooperating with means for automatically separating the pile from roller or rotary separator after a separation step
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0692—Vacuum assisted separator rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed

Definitions

  • the invention relates to the field of printing machinery, and in particular to a paper feeding device.
  • Conventional paper feeding methods for paperboard printing include: two-roll paper feeding and vacuum suction paper feeding. Both of these paper feeding methods require at least one set of paper feed rollers to clamp the cardboard to achieve the conveyance of the paperboard.
  • the most commonly used cardboard is corrugated cardboard.
  • the core layer is not solid and the compression resistance is weak.
  • the paper feeding roller clamps the corrugated cardboard, the thickness of the cardboard is thinned. The board is deformed in the thickness direction.
  • the force of the paper feed roller to clamp the cardboard must be smaller, but this tends to cause the cardboard to be unstable, and deviation occurs during the paper feeding process, which affects the printing quality.
  • a paper feeding device comprises a frame, a table for supporting the cardboard, a plurality of paper feed rollers arranged under the work table for conveying the cardboard, and four connecting rods respectively hinged to the work table about the horizontal axis.
  • a first driving device for moving up and down the two connecting rods on the output side of the table, and a second driving device arranged on the frame for driving the two links on the other side of the table to move up and down
  • the driving device has an opening corresponding to each of the paper feeding wheels, and an upper portion of each paper feeding wheel can protrude from a corresponding opening on the working table.
  • the first driving device and the second driving device respectively comprise two pendulum shaft bearing seats, a pendulum shaft hinged on the pendulum shaft bearing seat, and a driving motor for driving the pendulum shaft to rotate;
  • Each of the swing shafts is respectively provided with a link seat, and the bottom ends of each of the links are respectively hinged with the corresponding link bases.
  • a cam is respectively disposed on an output shaft of each of the driving motors, and each of the swing shafts is respectively provided with a swing arm; the outer edges of the respective cams respectively abut against the corresponding swing arms.
  • each of the swing arms includes a body, and each of the bodies is respectively provided with a fixed shaft, and each of the fixed shafts is respectively provided with a driven bearing; the outer edges of the respective cams respectively correspond to The outer edge of the driven bearing is offset.
  • the paper feeding device further comprises a vertical supporting plate disposed on the frame and located at the output ends of the two driving motors; the two pendulum shafts corresponding to the two driving motors are respectively connected to the vertical
  • the support plate is hinged.
  • the main shafts of the respective driving motors are respectively connected to one output shaft through one coupling; two auxiliary supporting plates are fixed on the vertical supporting plate; the end of each output shaft away from the cam respectively passes through the corresponding
  • the auxiliary support plate is hinged by bearings.
  • each of the links includes a lower link and an upper link; each lower link is respectively hinged with its corresponding link seat, and each upper link is respectively hinged with the work table; away from the workbench output
  • the upper and lower links of the side are respectively connected by a rocker, and the bottoms of the rockers are respectively hinged with the top ends of the corresponding lower links, and the upper portions of the rockers are respectively hinged with the bottom ends of the corresponding upper links;
  • Each of the rocking blocks is respectively hinged with a connecting rod support, and each of the connecting rod supports is respectively fixed on the frame;
  • a linear bearing is respectively fixed on each upper connecting rod corresponding to the output side of the working table, and each linear bearing is slidably connected with a straight line Guide rails, each of which is fixed to the frame.
  • the tops of the respective upper links respectively comprise two fork arms, and a pivot shaft is disposed between the two fork arms; and a work block is respectively provided with a bump at the top of each upper link
  • Each of the bumps is respectively provided with a circular hole, and each of the convex blocks is respectively inserted between the corresponding two fork arms and is matched with the corresponding pivot shaft.
  • a plurality of paper feed rollers are arranged under the workbench, and each of the paper feed rollers in the same row is sleeved on the same hollow paper feed roller shaft; each of the paper feed rollers is provided with a plurality of communicating outer walls thereof. And a through hole of the inner wall, and a through hole for connecting the air inlet hole and the inner cavity of the paper feed wheel shaft respectively on the side wall of each paper feed wheel shaft.
  • the paper feed rollers of any two adjacent rows in the projection on the horizontal surface are arranged offset along the longitudinal direction of the paper feed roller shaft.
  • the invention provides a paper feeding device, which is convenient for controlling the lifting and lowering of the working table by setting a work table, four connecting rods and two driving devices, so as to realize the paper feeding wheel conveying the paperboard.
  • the paper feeding device provided by the invention avoids the manner of using two rollers to clamp the paperboard for paper feeding, so that the paperboard is not subjected to extrusion deformation, and in addition, during the conveying process, the control table is controlled. One side rises, reducing the pressure on the paperboard in the paper stack, further ensuring that the paperboard will not be deformed during transport.
  • Fig. 1 is a perspective view of a paper feeding device provided by the present invention.
  • Figure 2 is a partial enlarged view of the S1 area of Figure 1.
  • Figure 3 is a partial enlarged view of the S2 area of Figure 1.
  • Fig. 4 is a schematic view showing the connection of the lower link and the upper link away from the output side of the table in the paper feeding device provided by the present invention.
  • Figure 5 is a side elevational view of the paper feeding device provided by the present invention in an unpapered state.
  • Figure 6 is a side elevational view of the paper feeding device provided by the present invention, in which the left side of the table is in a raised state.
  • Fig. 7 is a schematic view showing the arrangement of a paper feed roller in a projection on a horizontal plane in the paper feeding device provided by the present invention.
  • the present invention provides a paper feeding device.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • the present invention provides a paper feeding device.
  • the paper feeding device comprises a frame (not shown), a table 10 for supporting the cardboard, a plurality of paper feed rollers 11 disposed under the table for conveying the cardboard, and four rollers respectively around the horizontal axis
  • a connecting rod 20 hinged to the table (only three are observed in Fig. 1), a first drive that is disposed on the frame and drives the two links of the table output side (shown on the right side) to move up and down a device, and a second driving device disposed on the frame and driving the two links of the other side of the table (shown as the left side) to move up and down;
  • the working table has an opening corresponding to each of the paper feeding wheels 101.
  • the upper portion of each of the paper feed rollers may protrude from a corresponding opening in the table.
  • the rack itself is not the point of the invention, so the drawing is not shown, and the present invention does not limit the specific shape of the rack.
  • the rack can be set according to specific needs. It satisfies the support of necessary components (such as driving devices).
  • the second driving device of the first driving device has the same structural principle, and the first driving device and the second driving device respectively comprise two pendulum shaft bearing seats 301, and the pendulum shaft 31 hinged on the pendulum shaft bearing seat And a driving motor 401 for driving the swinging shaft; each of the swing shafts is respectively provided with a connecting rod seat 33, and the bottom ends of each of the connecting rods are respectively hinged with the corresponding connecting rods.
  • Each of the above-mentioned pendulum shaft support seats and the drive motor is disposed on the frame.
  • the driving motor drives the pendulum shaft to rotate within a certain angle range, and the connecting rod seat rotates together with the swinging shaft, thereby driving the connecting rod to swing (including horizontal displacement and vertical displacement), thereby realizing the lifting and lowering of the left and right sides of the control table.
  • a plurality of cams 404 are respectively disposed on the output shafts of the respective driving motors 401, and each of the swing shafts 31 is respectively provided with a swing arm 32; the outer edges of the respective cams respectively abut against the corresponding swing arms.
  • the cam rotates with the corresponding drive motor, thereby causing the corresponding swing arm to swing in a certain arc.
  • the specific swing range is determined by the actual working conditions and is not limited herein.
  • each of the swing arms 32 includes a body 321 respectively, and each of the main bodies is respectively provided with a fixed shaft 323, and each of the fixed shafts is respectively sleeved with a driven bearing 323; the outer edges of the respective cams respectively correspond to The outer edge of the driven bearing is offset.
  • the purpose of this setting is to cause rolling friction where the cam contacts the swing arm, reducing wear on the cam and swing arm.
  • the paper feeding device further comprises a vertical supporting plate 302 disposed on the frame and located at the output ends of the two driving motors; the two ends of the two pendulum shafts corresponding to the two driving motors are respectively hinged with the vertical supporting plate.
  • the vertical support plate is disposed on the frame.
  • the main shafts of the respective driving motors are respectively connected to one output shaft 403 through a coupling 402; two auxiliary supporting plates (not shown) are fixed on the vertical supporting plate; the end of each output shaft away from the cam Pass through the corresponding auxiliary support plate and hinge through the bearing. Due to the supporting action of the auxiliary support plate, the output shaft can withstand the shearing force generated by the cam, thereby making the output shaft run more stably.
  • the respective connecting rods 20 respectively The lower link 201 and the upper link 202 are included; each lower link is respectively hinged 33 with its corresponding link seat, and each upper link 202 is respectively hinged with the table 10; away from the output side of the table (the left side is shown)
  • Each of the upper link and the lower link are respectively connected by a rocker 203, and the bottoms of the respective rockers are respectively hinged to the top ends of the corresponding lower links, and the upper portions of the respective rockers are respectively hinged to the bottom ends of the corresponding upper links;
  • the rocker block is respectively hinged with a link support 204 (the figure shows that the rocker block 203 hinges the link support 204 through the shaft 205), and the respective link supports are respectively fixed to the frame (the connection is illustrated in FIG.
  • each linear bearing 21 fixed to each of the upper links corresponding to the output side of the worktable (shown as the right side), each linear bearing sliding Connected to a linear guide (not shown) Out), each linear guide is fixed to the frame.
  • the following is a brief description of the specific working principle: (1) away from the motion principle of the output side of the workbench, the swinging arm swings the lower link to swing (the lower link has both horizontal and vertical displacement), and the lower link drives the rocker to swing ( As shown in FIG. 4, the rocker rotates around the shaft 205.
  • the rotation of the rocker drives the swing shaft and the link base to rotate, further driving the upper link to swing, and finally driving the side of the work table to move up and down; as shown in Fig. 2, the upper link
  • the length of the rod is smaller than the length of the lower link. Since the length of the upper link is short, the horizontal displacement generated by the upper link to the table is small and does not affect the normal operation of the table.
  • the rotation of the rocker drives the swing shaft and the link base to rotate, further drives the lower link to swing, and the lower link drives the upper link. Move up and down along the linear guide to move up and down on the output side of the table.
  • the purpose is to use the lifting movement on the output side of the table as a reference to ensure that the table does not shift every time it reaches the highest point or the lowest point.
  • the tops of the respective upper links 202 respectively include two fork arms 2021, and a pivot shaft 2022 is disposed between the two fork arms; the workbench is respectively disposed corresponding to the tops of the respective upper links.
  • There is a bump 11 and each of the bumps is respectively provided with a circular hole (not visible in the figure), and each of the bumps is respectively inserted between the corresponding two fork arms and is matched with the corresponding pivot shaft.
  • a plurality of paper feed rollers are arranged under the workbench (only four rows of paper feed rollers are schematically illustrated in the drawing), and the respective paper feed rollers of the same column are sleeved on the same hollow paper feed roller shaft;
  • the paper wheel is provided with a plurality of air suction holes communicating with the outer wall and the inner wall, and a through hole for connecting the air suction hole and the inner cavity of the paper feed wheel shaft is respectively disposed on each side wall of each paper feed wheel shaft.
  • the inner chambers of the respective paper feed roller shafts are connected to a vacuuming device (not shown), and the vacuuming device is not within the scope of the present invention.
  • the end of each of the paper feed roller shafts close to the drive motor is blindly blocked.
  • Each of the above-described paper feed roller shafts is coupled to a power unit (not shown) to effect simultaneous rotation of the respective paper feed roller shafts.
  • any two adjacent rows of paper feed rollers in the projection on the horizontal plane are offset along the longitudinal direction of the hollow shaft. This setting makes the force of the paperboard and the paper feed roller more uniform when it is in contact with the paper feed wheel, and is more stable during transportation and is less prone to deviation.
  • the two cams are in the proper position so that the table is at the highest position, and the upper portions of the respective paper feed rollers are not from the respective openings on the table.
  • the middle extension that is, the bottom of the cardboard at the bottom of the stack is not in contact with the paper feed roller.
  • the two driving motors respectively drive the two cams to rotate, so that the table is lowered to the lowest point, and the upper part of each paper feeding wheel protrudes from each opening of the table, so that the bottom of the paperboard at the bottom of the paper pile and the respective pieces are sent.
  • the paper wheel contacts and is sucked, and the paper feed wheel rotates to send the lowest sheet of paper.
  • the drive motor when the paper feed is half, the drive motor is rotated away from the exit side (the left side is shown), and the left side of the table is raised to the highest position, so that the left side of the stack 90 is separated from the paper feed roller.
  • the cardboard 901 being conveyed is prevented from being completely crushed by the paper stack, that is, the pressure of the paper stack 90 against the paperboard 901 is alleviated, so that it can be smoothly fed by the paper feed roller.
  • the drive motor corresponding to the output side shown as the right side
  • rotates so that the corresponding cam rotates, and the right side of the table is raised to the highest position (the workbench is horizontal).
  • the next cardboard to be conveyed (at the bottom of the stack) is completely separated from the paper feed roller, and the paper feed is stopped, thereby completing a paper feed work cycle.
  • the above-mentioned output cardboard enters the next process, and the specific device of the next process is not shown in the drawing.
  • the paper feeding device provided by the invention avoids the use of the upper and lower rollers to clamp and transport the cardboard, thereby avoiding the deformation of the cardboard; during the feeding process, the left side of the stack is lifted to avoid The entire gravity of the paper pile is pressed against the paperboard being transported, further preventing the cardboard from being deformed by compression, thereby ensuring that no deformation occurs during the paperboard conveyance.

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Abstract

一种送纸装置，该送纸装置包括机架，用于支承纸板的工作台（10），多个设置于工作台（10）下方的用于输送纸板的送纸轮（11），四根分别绕水平轴线与工作台（10）铰接的连杆（20），设置于机架上且用于驱动工作台（10）输出侧的两根连杆（20）上下运动的第一驱动装置，以及设置于机架上且用于驱动工作台（10）另一侧的两根连杆（20）上下运动的第二驱动装置；工作台（10）对应各个送纸轮（11）处分别开设有一个开口（101），各个送纸轮（11）的上部可从工作台（10）上对应的开口（101）中伸出。该送纸装置避免了使用两个辊筒夹紧纸板进行送纸，保证了纸板输送过程中不会发生挤压变形。

Description

一种送纸装置 技术领域
本发明涉及印刷机械领域，特别涉及一种送纸装置。
背景技术
用于纸板印刷的印刷机常规的送纸方式有：双辊送纸与真空吸附送纸两种。这两种送纸方式都要求至少有一组送纸辊夹住纸板，从而实现纸板的输送。然而，通常情况下纸板的机械强度不高，最常用的纸板为瓦楞纸板，其芯层并非实心，抗压能力较弱；当送纸辊夹紧瓦楞纸板时会把纸板的厚度压薄，即纸板厚度方向上发生变形。然而，为了使纸板变形越少，送纸辊夹住纸板的力必须越小，但这样往往夹不稳纸板，送纸过程中就会产生偏差，影响印刷质量。
可见，现有技术还有待改进和提高。
发明内容
鉴于上述现有技术的不足之处，本发明的目的在于提供一种送纸装置，旨在解决现有技术中送纸装置送纸时导致纸板变形的技术问题。
为了达到上述目的，本发明采取了以下技术方案：
一种送纸装置,包括机架，用于支承纸板的工作台，多个设置于工作台下方的用于输送纸板的送纸轮，四根分别绕水平轴线与工作台铰接的连杆，设置于机架上且用于驱动工作台输出侧的两根连杆上下运动的第一驱动装置，以及设置于机架上且用于驱动工作台另一侧的两根连杆上下运动的第二驱动装置；工作台对应各个送纸轮处分别开设有一个开口，各个送纸轮的上部可从工作台上对应的开口中伸出。
所述的送纸装置中，所述第一驱动装置和第二驱动装置分别包括两个摆轴支承座，铰接于摆轴支承座上的摆轴，以及用于驱动摆轴转动的驱动电机；每根摆轴上分别设置有一个连杆座，每根连杆的底端分别与对应的连杆座铰接。
所述的送纸装置中，所述各个驱动电机的输出轴上分别套设有一个凸轮，每根摆轴上分别设置有一个摆臂；各个凸轮的外缘分别与对应的摆臂相抵。
所述的送纸装置中，所述各个摆臂分别包括一个本体，各个本体上分别设置有一根固定轴，每根固定轴上分别套设有一个从动轴承；各个凸轮的外缘分别与对应的从动轴承的外缘相抵。
所述的送纸装置中，该送纸装置还包括一块设置于机架上且位于两台驱动电机输出端的竖直支承板；两根摆轴对应两个驱动电机的那一端分别与该竖直支承板铰接。
所述的送纸装置中，各个驱动电机的主轴分别通过一个联轴器连接一根输出轴；竖直支承板上固定有两块辅助支承板；各个输出轴远离凸轮的那一端分别穿过对应的那块辅助支承板并通过轴承铰接。
所述的送纸装置中，所述各个连杆分别包括下连杆和上连杆；各个下连杆分别与其对应的连杆座铰接，各个上连杆分别与工作台铰接；远离工作台输出侧的各个上连杆和下连杆分别通过一个摇块连接，各个摇块的底部分别与其对应的下连杆的顶端铰接，各个摇块的上部分别与其对应的上连杆的底端铰接；各个摇块分别铰接有一个连杆支座，各个连杆支座分别固定于机架上；对应工作台输出侧的各个上连杆上分别固定有一个直线轴承，各个直线轴承滑动连接有一根直线导轨，各个直线导轨固定于机架上。
所述的送纸装置中，所述各个上连杆的顶部分别包括两个叉臂，两个叉臂之间设置有一根枢轴；工作台对应各个上连杆顶部处分别设置有一个凸块，各个凸块上分别设置有一个圆孔，各个凸块分别插入对应的两个叉臂之间并且与对应的那根枢轴进行孔轴配合。
所述的送纸装置中，工作台下方设置有若干列送纸轮，同一列的各个送纸轮套设于同一根中空的送纸轮轴上；各个送纸轮上开设有多个连通其外壁和内壁的吸气孔，各个送纸轮轴的侧壁上对应各个送纸轮处分别开设有用于连通吸气孔和送纸轮轴内腔的通孔。
所述的送纸装置中，在水平面上的投影中任意相邻两列的送纸轮沿送纸轮轴长度方向错位设置。
有益效果：
本发明提供了一种送纸装置，通过设置工作台，四根连杆，以及两根驱动装置，从而便于控制工作台的升降，以实现送纸轮输送纸板。相比现有技术，本发明所提供的送纸装置避免了使用两个辊筒夹紧纸板进行送纸的方式，因此不会对纸板造成挤压变形，此外，输送过程中，通过控制工作台一侧升起，减轻了纸堆对输送中的那张纸板的压力，进一步保证了纸板输送过程中不会发生变形。
附图说明
图1为本发明提供的送纸装置的立体图。
图2为图1中S1区域的局部放大图。
图3为图1中S2区域的局部放大图。
图4为本发明提供的送纸装置中，远离工作台输出侧的下连杆和上连杆的连接示意图。
图5本发明提供的送纸装置的侧视示意图，处于未送纸状态。
图6本发明提供的送纸装置的侧视示意图，图中工作台的左侧处于升起状态。
图7为本发明提供的送纸装置中，水平面上的投影中送纸轮的布置示意图。
具体实施方式
本发明提供一种送纸装置，为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
请参阅图1至图6，本发明提供一种送纸装置。
所述的送纸装置包括机架(图中未示出)，用于支承纸板的工作台10，多个设置于工作台下方的用于输送纸板的送纸轮11，四根分别绕水平轴线与工作台铰接的连杆20(图1中仅观察到3根)，设置于机架上且用于驱动工作台输出侧(图示为右侧)的两根连杆上下运动的第一驱动装置，以及设置于机架上且用于驱动工作台另一侧(图示为左侧)的两根连杆上下运动的第二驱动装置；工作台对应各个送纸轮处分别开设有一个开口101，各个送纸轮的上部可从工作台上对应的开口中伸出。需要说明的是，在本发明中机架本身并非发明点所在，因此附图未示出，且本发明也不限定机架的具体形状，实际应用时，可根据具体需求进行机架的设置以满足对必要的部件(如驱动装置等)进行支承。
具体地，上述第一驱动装置的第二驱动装置的结构原理相同，所述第一驱动装置和第二驱动装置分别包括两个摆轴支承座301，铰接于摆轴支承座上的摆轴31，以及用于驱动摆轴转动的驱动电机401；每根摆轴上分别设置有一个连杆座33，每根连杆的底端分别与对应的连杆座铰接。上述各个摆轴支承座和驱动电机设置于机架上。驱动电机驱动摆轴在一定角度范围内转动，连杆座随摆轴一起转动，从而带动连杆摆动(包括水平位移和竖直位移)，从而实现控制工作台左右 两侧的升降。
进一步地，所述各个驱动电机401的输出轴上分别套设有一个凸轮404，每根摆轴31上分别设置有一个摆臂32；各个凸轮的外缘分别与对应的摆臂相抵。工作时，所述凸轮随对应的驱动电机转动，从而带动对应的摆臂进行一定弧度地摆动。具体摆动范围由实际工况决定，此处不作限定。
进一步地，所述各个摆臂32分别包括一个本体321，各个本体上分别设置有一根固定轴323，每根固定轴上分别套设有一个从动轴承323；各个凸轮的外缘分别与对应的从动轴承的外缘相抵。该设置的目的在于使得凸轮与摆臂接触的地方发生滚动摩擦，减少凸轮和摆臂的磨损。
进一步地，该送纸装置还包括一块设置于机架上且位于两台驱动电机输出端的竖直支承板302；两根摆轴对应两个驱动电机的那一端分别与该竖直支承板铰接。上述竖直支承板设置于机架上，通过该设置，使得设置有摆臂的那一段摆轴形成了简支梁结构，提高了摆轴的稳定性。
进一步地，各个驱动电机的主轴分别通过一个联轴器402连接一根输出轴403；竖直支承板上固定有两块辅助支承板(图中未示出)；各个输出轴远离凸轮的那一端分别穿过对应的那块辅助支承板并通过轴承铰接。由于辅助支承板的支承作用，使得输出轴能够承受凸轮所产生的剪切力，从而使得输出轴运行更加稳定。
实际应用中，当送纸装置的尺寸较大时，相应的连杆长度也会较长，为了进一步避免连杆顶部摆动的位移较大的问题，可以进行如下设置：所述各个连杆20分别包括下连杆201和上连杆202；各个下连杆分别与其对应的连杆座铰接33，各个上连杆202分别与工作台10铰接；远离工作台输出侧(图示为左侧)的各个上连杆和下连杆分别通过一个摇块203连接，各个摇块的底部分别与其对应的下连杆的顶端铰接，各个摇块的上部分别与其对应的上连杆的底端铰接；各个摇块分别铰接有一个连杆支座204(附图所示为摇块203通过轴205铰接连杆支座204)，各个连杆支座分别固定于机架上(附图2中示意出连接孔2041，用于穿过螺栓将连杆支座固定于机架上)；对应工作台输出侧(图示为右侧)的各个上连杆上分别固定有一个直线轴承21，各个直线轴承滑动连接有一根直线导轨(图中未示出)，各个直线导轨固定于机架上。以下简述具体工作原理：(1) 远离工作台输出侧的运动原理，摆臂摆动时带动下连杆摆动(下连杆既有水平位移也有竖直位移)，下连杆带动摇块摆动(如图4所示，摇块绕轴205转动)，摇块的转动带动摆轴和连杆座转动，进一步带动上连杆摆动，最终带动工作台一侧上下移动；由图2可知，上连杆的长度小于下连杆的长度，由于上连杆的长度较短，因此上连杆对工作台产生的水平位移很小，不影响工作台正常工作。(2)对应工作台输出侧的运动原理，对于远离工作台输出侧的运动原理，摇块的转动带动摆轴和连杆座转动，进一步时带动下连杆摆动，下连杆带动上连杆沿直线导轨上下移动，从而实现工作台输出侧的上下移动。通过设置直线轴承，目的在于将工作台输出侧的升降运动作为基准，从而保证工作台的每次升降到最高点或最低点时都不会发生偏移。
请参参阅图2，进一步地，所述各个上连杆202的顶部分别包括两个叉臂2021，两个叉臂之间设置有一根枢轴2022；工作台对应各个上连杆顶部处分别设置有一个凸块11，各个凸块上分别设置有一个圆孔(图中观察不到)，各个凸块分别插入对应的两个叉臂之间并且与对应的那根枢轴进行孔轴配合。通过该设置，既能实现上连杆与工作台铰接，又使得上连杆能够稳定地支承工作台。
进一步地，工作台下方设置有若干列送纸轮(附图中仅示意性画出4列送纸轮)，同一列的各个送纸轮套设于同一根中空的送纸轮轴上；各个送纸轮上开设有多个连通其外壁和内壁的吸气孔，各个送纸轮轴的侧壁上对应各个送纸轮处分别开设有用于连通吸气孔和送纸轮轴内腔的通孔。上述各个送纸轮轴的内腔连接至抽真空设备(图中未画出)，所述抽真空设备不在本发明保护范围内。由图1可知，各个送纸轮轴靠近驱动电机的那一端分别进行了盲堵。上述各个送纸轮轴连接至一动力装置(图中未示出)，从而实现各个送纸轮轴的同步转动。
请参阅图7，进一步地，在水平面上的投影中任意相邻两列的送纸轮沿中空轴长度方向错位设置。该设置使得纸板与送纸轮的接触时受力更加均匀，输送过程中更加稳定不容易发生偏差。
以下简述该送纸装置的工作原理：如图5所示，在送纸之前，两个凸轮位于合适位置正好使得工作台处于最高位置，各个送纸轮的上部未从工作台上的各个开口中伸出，即纸堆最底层的那张纸板的底部未与送纸轮接触。两个驱动电机分别带动两个凸轮转动，从而使得工作台降低到最低点，各个送纸轮的上部从工作 台的各个开口中伸出，使得纸堆最底层的那张纸板的底部与各个送纸轮接触且被吸附，送纸轮转动将最底层的那张纸板送出。请参阅图6，当送纸一半时，远离出口侧(图示为左侧)的驱动电机转动，将工作台的左侧升高到最高位置，让纸堆90的左侧与送纸轮分离，正被传送的那张纸板901就避免了被纸堆完全压住，即，减轻了纸堆90对纸板901的压力，因此能平稳的被送纸轮送出。当一张纸板被完全送出后，对应输出侧(图示为右侧)的驱动电机转动，从而让对应的凸轮转动，转到让工作台右侧升到最高的位置(此时工作台呈水平)，这时下一张待输送的纸板(此时位于纸堆最底层)与送纸轮完全分离，停止送纸，从而完成一个送纸工作循环。上述输出的纸板进入了下一个工序，图中未示出下一工序的具体装置。由此可见，本发明提供的送纸装置避免了使用上、下两个辊筒夹紧和输送纸板，避免了纸板被挤压变形；送纸过程中，纸堆的左侧被抬起，避免了纸堆的全部重力压在正在输送中的那张纸板上，进一步避免了纸板被压迫变形，从而保证了纸板输送过程中不发生任何变形。
可以理解的是，对本领域普通技术人员来说，可以根据本发明的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本发明所附的权利要求的保护范围。

Claims (10)

  1. 一种送纸装置，其特征在于，包括机架，用于支承纸板的工作台，多个设置于工作台下方的用于输送纸板的送纸轮，四根分别绕水平轴线与工作台铰接的连杆，设置于机架上且用于驱动工作台输出侧的两根连杆上下运动的第一驱动装置，以及设置于机架上且用于驱动工作台另一侧的两根连杆上下运动的第二驱动装置；工作台对应各个送纸轮处分别开设有一个开口，各个送纸轮的上部可从工作台上对应的开口中伸出。
  2. 根据权利要求1所述的送纸装置，其特征在于，所述第一驱动装置和第二驱动装置分别包括两个摆轴支承座，铰接于摆轴支承座上的摆轴，以及用于驱动摆轴转动的驱动电机；每根摆轴上分别设置有一个连杆座，每根连杆的底端分别与对应的连杆座铰接。
  3. 根据权利要求2所述的送纸装置，其特征在于，所述各个驱动电机的输出轴上分别套设有一个凸轮，每根摆轴上分别设置有一个摆臂；各个凸轮的外缘分别与对应的摆臂相抵。
  4. 根据权利要求3所述的送纸装置，其特征在于，所述各个摆臂分别包括一个本体，各个本体上分别设置有一根固定轴，每根固定轴上分别套设有一个从动轴承；各个凸轮的外缘分别与对应的从动轴承的外缘相抵。
  5. 根据权利要求4所述的送纸装置，其特征在于，该送纸装置还包括一块设置于机架上且位于两台驱动电机输出端的竖直支承板；两根摆轴对应两个驱动电机的那一端分别与该竖直支承板铰接。
  6. 根据权利要求4所述的送纸装置，其特征在于，各个驱动电机的主轴分别通过一个联轴器连接一根输出轴；竖直支承板上固定有两块辅助支承板；各个输出轴远离凸轮的那一端分别穿过对应的那块辅助支承板并通过轴承铰接。
  7. 根据权利要求2或5所述的送纸装置，其特征在于，所述各个连杆分别包括下连杆和上连杆；各个下连杆分别与其对应的连杆座铰接，各个上连杆分别与工作台铰接；远离工作台输出侧的各个上连杆和下连杆分别通过一个摇块连接，各个摇块的底部分别与其对应的下连杆的顶端铰接，各个摇块的上部分别与其对应的上连杆的底端铰接；各个摇块分别铰接有一个连杆支座，各个连杆支座分别固定于机架上；对应工作台输出侧的各个上连杆上分别固定有一个直线轴承，各个直线轴承滑动连接有一根直线导轨，各个直线导轨固定于机架上。
  8. 根据权利要求7所述的送纸装置，其特征在于，所述各个上连杆的顶部分别包括两个叉臂，两个叉臂之间设置有一根枢轴；工作台对应各个上连杆顶部处分别设置有一个凸块，各个凸块上分别设置有一个圆孔，各个凸块分别插入对应的两个叉臂之间并且与对应的那根枢轴进行孔轴配合。
  9. 根据权利要求2或5所述的送纸装置，其特征在于，工作台下方设置有若干列送纸轮，同一列的各个送纸轮套设于同一根中空的送纸轮轴上；各个送纸轮上开设有多个连通其外壁和内壁的吸气孔，各个送纸轮轴的侧壁上对应各个送纸轮处分别开设有用于连通吸气孔和送纸轮轴内腔的通孔。
  10. 根据权利要求9所述的送纸装置，其特征在于，在水平面上的投影中任意相邻两列的送纸轮沿送纸轮轴长度方向错位设置。
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CN107472942A (zh) * 2017-08-31 2017-12-15 广东东方精工科技股份有限公司 一种送纸装置

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