Paper feeding and turning structure applied to printer and processing method thereof

Abstract

The application discloses a paper feeding and overturning structure applied to a printer and an overturning method thereof in the technical field of paper feeding machines, which comprises a fixing frame, a sliding plate is slidably arranged in the fixing frame, a conveying frame is rotatably connected to the front end of the fixing frame, a first conveying belt is arranged at the front end of the conveying frame, a first printing assembly is fixedly connected to the first conveying belt, a spiral frame is arranged at the front end of the first conveying belt, a rotary conveying assembly is connected to the front end of the spiral frame, a second conveying belt is connected to the other end of the rotary conveying assembly, and a second printing assembly is fixedly connected to the second conveying belt.

Description

TECHNICAL FIELD

[0001] The application relates to a paper feeding and turning structure applied to a printer and a processing method thereof. BACKGROUND

[0002] The paper feeding machine is a chain type paper feeding device applied to paperboard printing, and can automatically convey a large amount of paperboard produced, and improves the low efficiency of manual single paper feeding.

[0003] The existing paper feeding machine can complete the step of automatically conveying paperboard for printing, but for paperboard that needs to be printed on both sides, the paper needs to be turned over for printing after single-sided printing is completed. Since the graphite powder on the surface of the paperboard after single-sided printing is not completely dried, direct turning and transportation for printing again will cause the pattern on the first printed surface to be deformed by friction, and the paper needs to be turned over and transported after the first printed surface is dried. In addition, there may be excess floating powder on the surface of the printed paper, and the floating powder will still exist on the printed surface after drying, and will be printed on the blank part of the paper during turning and transportation.

[0004] Therefore, the paper feeding and turning structure applied to the printer and the processing method thereof are designed to solve the above problems. SUMMARY

[0005] The application aims to provide a paper feeding and turning structure applied to a printer and a processing method thereof to solve the problems in the background.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a paper feeding and turning structure applied to a printer, comprising a fixed frame, a sliding plate slidingly arranged in the fixed frame, a conveying frame rotatably connected to the front end of the fixed frame, a first conveying belt arranged at the front end of the conveying frame, a first printing assembly fixedly connected to the first conveying belt, a spiral frame arranged at the front end of the first conveying belt, a rotary conveying assembly connected to the front end of the spiral frame, a second conveying belt connected to the other end of the rotary conveying assembly, a second printing assembly fixedly connected to the second conveying belt, and a floating powder cleaning assembly arranged on the spiral frame, which is used for cleaning the graphite floating powder existing on the surface of the printed paper, so as to ensure that the floating powder will not be printed on the blank part of the paper during subsequent turning and transportation.

[0007] As a further scheme of the present application, the floating powder cleaning assembly comprises a sliding block, the sliding block is sleeved at both ends of the spiral frame, a friction wheel is rotatably arranged in the sliding block, a fixed motor for rolling connection with the spiral frame is fixedly connected to one end of the sliding block, the output shaft of the fixed motor is fixedly connected with the friction wheel, a bottom rod is rotatably connected to the top end of the sliding block, a supporting rod is slidably connected to the top end of the bottom rod, a reset spring for resetting the supporting rod is fixedly connected to the bottom end of the supporting rod, a fixed plate is fixedly connected to the top end of the supporting rod, a fixed cylinder is fixedly connected to each of the two sides of the top end of the fixed plate, a positioning roller is arranged on the inner side of the fixed plate, the positioning roller is rotatably arranged at the front end of the first conveying belt, a connecting rod is fixedly connected to one end of the fixed plate, a rotating block is rotatably connected to the bottom end of the connecting rod, a rotating seat is fixedly connected to one end of the rotating block, a torsional spring for resetting the rotating seat is fixedly connected to the inside of the rotating seat, a plurality of protrusions for contacting the rotating block are fixedly connected to the spiral frame at equal intervals, and a hot air blower is fixedly connected to one side of the top end of the fixed plate.

[0008] As a further scheme of the present application, the sliding block is rotatably connected with a plurality of rolling balls for contacting the side wall of the spiral frame.

[0009] As a further scheme of the present application, the top end of the fixed plate is fixedly connected with a dust collecting box, a filter screen is fixedly connected to one side of the opening of the dust collecting box, and an electric heating wire is fixedly connected to the inside of the hot air blower.

[0010] As a further scheme of the present application, the top end of the fixed frame is fixedly connected with a counter, one side of the fixed frame is fixedly connected with a driving motor, and the output shaft of the driving motor is fixedly connected with the conveying frame.

[0011] As a further scheme of the present application, the bottom end of the rotating block is provided with an inclined wall capable of being attached to the side wall of the protrusion, and the outer wall of the protrusion is a smooth wall.

[0012] As a further scheme of the present application, the turning angle of the spiral frame is one hundred and eighty degrees.

[0013] A paper feeding and turning method applied to a printer, the method comprising the following steps:

[0014] Step one: stacking the paper to be printed on the sliding plate, the paper stacked on the sliding plate is transported to the first conveying belt by the conveying frame in sequence and printed by the first printing assembly;

[0015] Step two: after the single-sided printed paper is adsorbed by the floating powder cleaning assembly, the floating powder cleaning assembly and the cylinder are turned and transported on the spiral frame, and the floating powder cleaning assembly removes the floating powder on the surface of the paper during the transportation process;

[0016] Step three: the paper is transported to the rotary conveying assembly after the removal of the dust, and then transported to the second conveying belt through the rotary conveying assembly;

[0017] Step four: the paper is printed again on the second conveying belt through the second printing assembly to realize double-sided printing, and the printing process is completed.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1. The present application adopts a dust cleaning assembly, which removes the dust on the surface of the paperboard that has been printed during the turning process, so that the excess graphite powder can be effectively removed from the surface of the paperboard during printing, and the printed surface of the paperboard will not deform after turning and transportation.

[0020] 2. The present application provides height changes during the sliding process of the fixed plate through the protrusion and the rotating block, and resets the fixed plate under the elastic force of the return spring, removes the graphite dust on the surface of the paperboard through elastic shaking, blows the surface of the paperboard through the hot air blower containing an electric heating wire, and dries the printed pattern on the surface of the paperboard, so that the problem of pattern deformation can be effectively avoided during the turning and transportation of the printed paperboard. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the paper feeder structure;

[0023] Figure 3 It is a schematic diagram of the paper feeding and turning structure of the present application;

[0024] Figure 4 It is Figure 3 It is an enlarged structure schematic diagram of position A in the present application;

[0025] Figure 5 It is Figure 3 It is an enlarged structure schematic diagram of position B in the present application;

[0026] Figure 6 It is a schematic diagram of the connection structure of the fixed plate, the sliding block and the spiral frame;

[0027] Figure 7 It is a schematic diagram of the connection rod structure;

[0028] Figure 8 It is a flow chart of the method of the present application.

[0029] In the drawings, the components represented by each reference number are listed as follows:

[0030] 1, counter; 2, fixed frame; 3, sliding plate; 4, conveying frame; 5, driving motor; 6, first printing assembly; 7, first conveying belt; 8, spiral frame; 9, second conveying belt; 10, second printing assembly; 11, rotary conveying assembly; 12, hot air blower; 13, positioning roller; 14, dust collecting box; 15, filter screen; 16, fixed air cylinder; 17, sliding block; 18, connecting rod; 19, fixed plate; 20, supporting rod; 21, protruding block; 22, return spring; 23, bottom rod; 24, friction wheel; 25, fixed motor; 26, rotating block; 27, rotating seat. DETAILED DESCRIPTION

[0031] Please refer to Figures 1-8 The present application provides a technical solution: a paper feeding and turning structure applied to a printer, comprising a fixed frame 2, a sliding plate 3 is slidably arranged inside the fixed frame 2, a conveying frame 4 is rotatably connected to the front end of the fixed frame 2, a first conveying belt 7 is arranged at the front end of the conveying frame 4, a first printing assembly 6 is fixedly connected to the first conveying belt 7, a spiral frame 8 is arranged at the front end of the first conveying belt 7, a rotary conveying assembly 11 is connected to the front end of the spiral frame 8, a second conveying belt 9 is connected to the other end of the rotary conveying assembly 11, a second printing assembly 10 is fixedly connected to the second conveying belt 9, a powder cleaning assembly is arranged on the spiral frame 8, and the powder cleaning assembly is used for cleaning the graphite powder on the surface of the paper after printing, so as to ensure that the powder will not be printed on the blank part of the paper during subsequent turning transportation.

[0032] The above scheme will be used in actual use, the paper to be printed is stacked above the sliding plate 3, the paper stacked on the sliding plate 3 is transported to the first conveying belt 7 through the conveying frame 4, and then printed through the first printing assembly 6, after single-sided printing, the paper is adsorbed by the powder cleaning assembly, and then turned and transported on the spiral frame 8 together with the powder cleaning assembly, the powder cleaning assembly removes the powder on the surface of the paper during the transportation process, and then the paper is transported to the rotary conveying assembly 11 after the powder removal treatment, and then transported to the second conveying belt 9 through the rotary conveying assembly 11, and then printed through the second printing assembly 10 to realize double-sided printing, that is, the printing process is completed, the powder cleaning assembly is adopted in the present application, the surface of the paper after single-sided printing is shaken to remove the powder during the turning process, so that the excess graphite powder can be effectively removed from the surface of the paper during printing, and the printed surface of the paper will not deform the pattern on the surface of the paper due to the powder after the paper is turned and transported.

[0033] As a further scheme of the present application, the floating powder cleaning assembly comprises a sliding block 17 slidingly sleeved at both ends of the spiral frame 8, a friction wheel 24 rotatably arranged inside the sliding block 17, a fixed motor 25 fixedly connected at one end of the sliding block 17 for rolling connection with the spiral frame 8, an output shaft of the fixed motor 25 fixedly connected with the friction wheel 24, a bottom rod 23 rotatably connected at the top end of the sliding block 17, a supporting rod 20 slidingly connected at the top end of the bottom rod 23, a reset spring 22 fixedly connected at the bottom end of the supporting rod 20 for resetting thereof, a fixed plate 19 fixedly connected at the top end of the supporting rod 20, a fixed cylinder 16 fixedly connected at both sides of the top end of the fixed plate 19, a positioning roller 13 arranged at the inner side of the two fixed plates 19, the positioning roller 13 rotatably arranged at the front end of the first conveying belt 7, a connecting rod 18 fixedly connected at one end of the fixed plate 19, a rotating block 26 rotatably connected at the bottom end of the connecting rod 18, a rotating seat 27 fixedly connected at one end of the rotating block 26, a torsional spring fixedly connected inside the rotating seat 27 for resetting thereof, a plurality of protrusions 21 fixedly connected on the spiral frame 8 for contact with the rotating block 26, and a hot air machine 12 fixedly connected at one side of the top end of the fixed plate 19;

[0034] When the above scheme is put into actual use, the printed paperboard is transported to above the positioning roller 13 through the first conveying belt 7, the fixed cylinder 16 at the four corners is started to fix the paperboard on the fixed cylinder 16 through negative pressure suction, the fixed motor 25 is started to drive the friction wheel 24 to rotate, so that the sliding block 17 slides forward along the spiral frame 8, and the air blower 12 is started to blow, so that the graphite dust on the printed paperboard is blown away from the paperboard, when the sliding block 17 slides along the spiral frame 8, the connecting rod 18 on one side of the fixed plate 19 will contact the protrusion 21 on the spiral frame 8 through the rotating block 26 at the bottom, and push the supporting rod 20 upward along the protrusion 21, when the rotating block 26 is separated from the protrusion 21, the supporting rod 20 is pulled downward under the elastic force of the reset spring 22, so that the shaking action of the supporting rod 20 is completed through the elastic force of the reset spring 22, the rotating block 26 is repeatedly contacted and separated from the protrusion 21, so that the shaking action of the paperboard on the fixed cylinder 16 is completed, the excess graphite dust on the paperboard is effectively separated from the paperboard through the shaking mode, and the excess graphite dust is removed from the paperboard under the action of the air blower 12, until the sliding block 17 slides to the other end of the spiral frame 8, at this time, the sliding block 17 is completely turned over up and down, so that the upper and lower surfaces of the paperboard are also completed, at this time, the fixed cylinder 16 is separated from the negative pressure state, so that the paperboard is separated from the fixed cylinder 16 and falls on the rotary conveying assembly 11, and then the fixed motor 25 is reversed to drive the sliding block 17 to slide along the spiral frame 8 to the initial position, when the rotating block 26 contacts the protrusion 21 in the sliding process, the protrusion 21 drives the rotating block 26 to rotate around the rotating seat 27, so that the connecting rod 18 is not hindered to slide back, when the connecting rod 18 is separated from the protrusion 21, the rotating seat 27 drives the rotating block 26 to reset, the height change of the fixed plate 19 in the sliding process is provided through the protrusion 21 and the rotating block 26, and the fixed plate 19 is reset under the elastic force of the reset spring 22, the graphite dust on the surface of the paperboard is removed through elastic shaking, the bottom rod 23 and the sliding block 17 are rotationally connected, so that the fixed plate 19 is not only shaken in the up-down direction in the shaking process, but also can rotate left and right above the sliding block 17, and the strong spring for automatic reset is arranged on the bottom rod 23, so that the fixed plate 19 can always maintain the vertical state above the sliding block 17.

[0035] As a further scheme of the present application, the two sides of the sliding block 17 are respectively rotationally connected with the ball bearings for contacting the side wall of the spiral frame 8.

[0036] When the above scheme is put into actual use, the sliding block 17 on both sides is replaced by rolling friction instead of sliding friction between the sliding block 17 and the spiral frame 8 through the ball bearings on both sides, so that the friction is reduced and the service life of the sliding block 17 is improved.

[0037] As a further scheme of the present application, the top end side of the fixed plate 19 is fixedly connected with a dust collecting box 14, one side opening of the dust collecting box 14 is fixedly connected with a filter screen 15, and the inside of the hot air blower 12 is fixedly connected with an electric heating wire;

[0038] When the above scheme is put into actual use, the dust collecting box 14 is arranged at a position directly opposite the air outlet direction of the hot air blower 12, so that the floating powder dispersed by the hot air blower 12 can be collected into the dust collecting box 14, avoiding the floating powder from being blown everywhere and being blocked and filtered by the filter screen 15 at one end of the dust collecting box 14, avoiding the hot air blower 12 from directly blowing into the dust collecting box 14, and blowing away the floating powder collected in the dust collecting box 14, effectively collecting the floating powder by the dust collecting box 14, and heating the electric heating wire at the same time when the hot air blower 12 blows, so that the air blown by the hot air blower 12 has a higher temperature, and the paperboard can be dried at the same time when the floating powder on the surface of the paperboard is removed, so that the printed pattern can be quickly shaped.

[0039] As a further scheme of the present application, the top end of the fixed frame 2 is fixedly connected with a counter 1, one side of the fixed frame 2 is fixedly connected with a driving motor 5, and the output shaft of the driving motor 5 is fixedly connected with the conveying frame 4;

[0040] When the above scheme is put into actual use, the counter 1 is used to record the number of printed paperboards, facilitating query and monitoring, and the driving motor 5 is used as a power source to drive the conveying frame 4 to rotate, so as to convey the paperboard to the first conveying belt 7 for printing.

[0041] As a further scheme of the present application, the bottom end side wall of the rotating block 26 is an inclined wall capable of being attached to the side wall of the convex block 21, and the outer wall of the convex block 21 is a smooth wall;

[0042] When the above scheme is put into actual use, the completely attached rotating block 26 and the convex block 21 enable the rotating block 26 to be smoothly slid upward along the side wall of the convex block 21 in the sliding process, the smooth surface of the convex block 21 causes smaller frictional resistance to the rotating block 26, and the effect is better in use.

[0043] As a further scheme of the present application, the overturning angle of the spiral frame 8 is one hundred and eighty degrees;

[0044] When the above scheme is put into actual use, the sliding block 17 can be conveyed to rotate and overturn when sliding from one end of the spiral frame 8 to the other end, so as to complete the overturning and conveying of the paperboard.

[0045] The paper conveying and overturning method applied to the printer comprises the following steps:

[0046] Step one: the paper to be printed is stacked on the sliding plate 3, and the paper stacked on the sliding plate 3 is transported to the first conveying belt 7 through the conveying frame 4 and printed by the first printing assembly 6;

[0047] Step two: after the single-sided printed paper passes through the powder cleaning assembly for adsorption, the powder cleaning assembly and the cylinder are turned and transported on the spiral frame 8, and the powder cleaning assembly removes the powder on the surface of the paper during the transportation process;

[0048] Step three: after the paper is treated by removing the powder, it is transported to the rotary conveying assembly 11, and then transported to the second conveying belt 9 through the rotary conveying assembly 11;

[0049] Step four: the paper is printed on the second conveying belt 9 by the second printing assembly 10 to realize double-sided printing, that is, the printing process is completed.

[0050] Working principle: the above scheme in practical use, will need to print the paper stack on the sliding plate 3, stacked on the sliding plate 3 on the paper is transported to the first conveying frame 4 in turn to the first conveying belt 7 through the first printing assembly 6 printing, printing after the paper board through the first conveying belt 7 to the positioning roller 13 above, start four corner fixed cylinder 16 through the negative pressure suction will be fixed on the fixed cylinder 16 paper board, start fixed motor 25 drive friction wheel 24 rotation makes the sliding block 17 along the spiral frame 8 forward sliding, at the same time start hot air blower 12 blow paper board on the printing of graphite powder from the paper board blowing, sliding block 17 along the spiral frame 8 sliding, fixed plate 19 side connecting rod 18 will pass through the bottom of the rotating block 26 and the protrusion 21 on the spiral frame 8 contact, and along the protrusion 21 upward push support rod 20, when the rotating block 26 from the contact with the protrusion 21, in the reset spring 22 elastic force under the pull support rod 20 down sliding, through the reset spring 22 elastic force complete the shaking action of support rod 20, through the rotating block 26 repeatedly with a protrusion 21 contact off, complete the shaking action of the paper board on the fixed cylinder 16, through the shaking way effectively the paper board on the excess graphite powder from the contact with the paper board, and under the action of the hot air blower 12 the excess graphite powder from the paper board, until the sliding block 17 sliding to the other end of the spiral frame 8, dust collection tank 14 is set in the position opposite the hot air blower 12 out of the wind direction, so that the graphite powder through the hot air blower 12 blowing can be collected into the dust collection tank 14, avoid the graphite powder is blown everywhere, through the dust collection tank 14 one end of the filter screen 15 blocking filter, avoid the hot air blower 12 straight blow dust collection tank 14 inside, the graphite powder collected in the dust collection tank 14 also blow off, through the dust collection tank 14 on the graphite powder effectively concentrated collection, the hot air blower 12 contains electric heating wire inside when blowing electric heating wire heating, so that the hot air blower 12 blowing wind temperature is higher, in the removal of the graphite powder on the surface of the paper board, but also can dry the paper board, so that the printing pattern can be quickly shaped, the sliding block 17 completely upside down at this time, so that the paper board also complete the change of the upper and lower surface at this time, the fixed cylinder 16 from the negative pressure state so that the paper board from the fixed cylinder 16 and fall on the rotary transport assembly 11, after the rotary transport assembly 11 continue to transport, then fixed motor 25 reverse rotation, drive sliding block 17 along the spiral frame 8 sliding to the initial position, in the sliding process, rotating block 26 and the protrusion 21 contact, the protrusion 21 will drive rotating block 26 rotating around the rotating seat 27, so that the protrusion 21 will not hinder the connecting rod 18 back sliding, when the connecting rod 18 from the contact with the protrusion 21, rotating seat 27 will drive rotating block 26 reset, paper after the removal of the graphite powder processing transport to the rotary transport assembly 11, after the rotary transport assembly 11 again transport to the second conveying belt 9, paper in the second conveying belt 9 through the second printing assembly 10 for twice printing to realize double-sided printing, that is, the printing process can be completed.

Claims

1. A paper feeding and flipping structure for a printer, comprising a fixed frame (2), wherein a sliding plate (3) is slidably disposed inside the fixed frame (2), and a conveyor frame (4) is rotatably connected to the front end of the fixed frame (2), characterized in that: The conveyor frame (4) is provided with a first conveyor belt (7) at the front end, and a first printing component (6) is fixedly connected to the first conveyor belt (7). A spiral frame (8) is provided at the front end of the first conveyor belt (7), and a rotary transport component (11) is connected to the front end of the spiral frame (8). A second conveyor belt (9) is connected to the other end of the rotary transport component (11). A second printing component (10) is fixedly connected to the second conveyor belt (9). A powder cleaning component is provided on the spiral frame (8). The powder cleaning component is used to clean the graphite powder on the surface of the paper after printing, so as to ensure that the powder will not be printed on the blank areas of the paper during subsequent flipping and transport. The powder removal assembly includes a slider (17) that is slidably sleeved on both ends of a spiral frame (8). A friction wheel (24) is rotatably mounted inside the slider (17). A fixed motor (25) for rolling connection with the spiral frame (8) is fixedly connected to one end of the slider (17). The output shaft of the fixed motor (25) is fixedly connected to the friction wheel (24). A bottom rod (23) is rotatably connected to the top of the slider (17). A support rod (20) is slidably connected to the top of the bottom rod (23). A reset spring (22) for resetting is fixedly connected to the bottom end of the support rod (20). A fixing plate (19) is fixedly connected to the top of the support rod (20). Fixed cylinders (16) are fixedly connected to both sides of the top end. Positioning rollers (13) are provided on the inner side of the two fixed plates (19). The positioning rollers (13) are rotatably set at the front end of the first conveyor belt (7). A connecting rod (18) is fixedly connected to one end of the fixed plate (19). A rotating block (26) is rotatably connected to the bottom end of the connecting rod (18). A rotating seat (27) is fixedly connected to one end of the rotating block (26). A torsion spring for resetting is fixedly connected inside the rotating seat (27). Several protrusions (21) that are equidistantly distributed and used to contact the rotating block (26) are fixedly connected to the spiral frame (8). A hot air blower (12) is fixedly connected to one side of the top end of the fixed plate (19).

2. The paper feeding and flipping structure for a printer according to claim 1, characterized in that: Both sides of the slider (17) are rotatably connected to ball bearings for contacting the side wall of the screw frame (8).

3. The paper feeding and flipping structure for a printer according to claim 1, characterized in that: A dust collection box (14) is fixedly connected to one side of the top of the fixed plate (19), a filter screen (15) is fixedly connected to one side opening of the dust collection box (14), and an electric heating wire is fixedly connected inside the hot air blower (12).

4. The paper feeding and flipping structure for a printer according to claim 1, characterized in that: A counter (1) is fixedly connected to the top of the fixed frame (2), and a drive motor (5) is fixedly connected to one side of the fixed frame (2). The output shaft of the drive motor (5) is fixedly connected to the conveyor frame (4).

5. The paper feeding and flipping structure for a printer according to claim 1, characterized in that: The bottom sidewall of the rotating block (26) is an inclined wall that can fit against the sidewall of the protrusion (21), and the outer wall of the protrusion (21) is a smooth wall.

6. The paper feeding and flipping structure for a printer according to claim 1, characterized in that: The rotation angle of the spiral frame (8) is 180 degrees.

7. A paper feeding and flipping method for a printer, applicable to the paper feeding and flipping structure for a printer as described in any one of claims 1-6, characterized in that, The method includes the following steps: Step 1: Place the paper to be printed on the sliding plate (3). The paper stacked on the sliding plate (3) is transported sequentially through the conveyor frame (4) to the first conveyor belt (7) and printed by the first printing component (6). Step 2: After single-sided printing, the paper is adsorbed by the powder removal component and then transported together with the powder removal component on the spiral frame (8). During the transportation process, the powder removal component removes the powder from the paper surface. Step 3: After the paper is treated to remove loose powder, it is transported to the rotary conveyor assembly (11), and then transported to the second conveyor belt (9). Step 4: The paper passes through the second printing component (10) on the second conveyor belt (9) for double-sided printing, thus completing the printing process.

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