Feeding device of split four-color offset press
Through the design of the loading device of the flip-open four-color offset printing machine, the paper is limited and cleaned by using the extrusion plate and the wind blowing system, the problem of position deviation of the paper during the conveying process is solved and the quality of the finished printing is improved.
Patent Information
- Application Number
- CN202422171782.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-04
AI Technical Summary
When used in the existing folio four-color offset printing machine, the offset of the paper at the output end causes the offset of the printing position, affecting the quality of the finished printing product.
A flip-out four-color offset printing machine loading device is designed, including a conveyor belt, an extrusion plate and a wind blowing system. The paper is limited by the extrusion plate, and the wind blowing system is used to make the paper fit with the conveyor belt to reduce paper offset, while using a brush to remove dust and impurities on the surface of the paper.
Effectively reduce the positional offset of the paper during the conveying process, ensure the paper is flat and improve the quality of the finished printed products.
Smart Images
Figure CN223087187U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the printing technology field, and specifically relates to a feeding device for a folio four-color offset press. Background Art
[0002] A folio four-color offset press is a printing device, specifically referring to a machine that prints in three colors: yellow, magenta, and cyan.
[0003] During the use of the existing folio four-color offset press, it is necessary to place the paper at the output end of the folio four-color offset press, and then start the folio four-color offset press. At this time, the folio four-color offset press will perform color adjustment. When the color adjustment is completed, the paper can be printed.
[0004] During the long-term use and observation of the existing folio four-color offset press, it is found that when using the folio four-color offset press, it is necessary to continuously convey the paper to the output end of the folio four-color offset press to achieve continuous printing. When the position of the paper placed at the output end of the folio four-color offset press is offset, it will cause the printing position to be offset, thereby affecting the quality of the printed product.
[0005] Therefore, the utility model provides a feeding device for a folio four-color offset press. Summary of the Utility Model
[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.
[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A feeding device for a folio four-color offset press described in the utility model includes a conveyor belt; two groups of support legs are fixedly connected to the side wall of the conveyor belt; the two groups of support legs are arranged in pairs opposite to each other; two support plates are fixedly connected to the side wall of the conveyor belt; a lead screw is rotatably connected to the middle of each of the two support plates; a rotating handle is fixedly connected to the end of the lead screw; an extrusion plate is rotatably connected to the end of the lead screw away from the rotating handle; two guide rods are fixedly connected to the side wall of the extrusion plate; both of the two guide rods penetrate through the support plate; through holes are formed in the side walls of both of the two extrusion plates; sleeves are communicated with the ends of a plurality of the through holes; a telescopic rod is fixedly connected to the inner side wall of the sleeve; the end of the sleeve extends to the outside of the extrusion plate; a cross plate is fixedly connected to the ends of a plurality of the sleeves; the cross plate is located above the conveyor belt and has a certain gap from the conveyor belt. Through the above structure, the conveyor belt can drive the paper to feed the folio four-color offset press, so as to perform offset printing on the paper. When the paper moves on the top of the conveyor belt, the two extrusion plates can cooperate with the cross plate to limit the position of the paper, thereby reducing the offset of the paper during movement on the top of the conveyor belt, which may otherwise cause the paper to be difficult to correspond to the folio four-color offset press and affect the feeding.
[0008] Preferably, two vertical plates are fixedly connected to the top of the transverse plate; the two vertical plates are symmetrically arranged; an air inlet hole is formed in the side wall of one of the vertical plates; a motor is fixedly connected to one side wall of the vertical plate adjacent to the air inlet hole; the output end of the motor is fixedly connected to a rotating rod; the rotating rod penetrates through the vertical plate; a plurality of fan blades are fixedly connected to the middle of the rotating rod; the middle parts of the two vertical plates are communicated with a first air duct; a plurality of the fan blades are all located inside the first air duct; a plurality of air outlet holes are formed in the middle of the first air duct; the plurality of air outlet holes penetrate through the transverse plate; a second air duct is communicated with the middle of the air outlet hole. Through the above structure, the paper on the top of the conveyor belt can be blown and pressed from above, so that the paper fits more closely to the conveyor belt, thereby reducing the deviation of the paper during movement. At the same time, blowing air on the paper can reduce the influence on subsequent offset printing caused by residual debris or dust on the surface of the paper.
[0009] Preferably, two first support members are fixedly connected to the side wall of the transverse plate; a convex column is fixedly connected to the middle of the two first support members; second support members are fixedly connected to the two side walls of the transverse plate; the second support members are located above the convex column; a plurality of first brushes are fixedly connected to the middle of the second support members; the plurality of first brushes are equidistantly distributed and are in contact with the convex column. Through the above structure, the plurality of first brushes can contact the paper, and at this time, the dust or impurities adsorbed on the surface of the paper can be cleaned by the plurality of first brushes. At the same time, the paper in contact with the plurality of first brushes will be smoothed by the plurality of first brushes, so that the paper is in a flat state when it enters the output end of the four-color offset printing machine.
[0010] Preferably, fixing rings are fixedly connected to the side walls of the two support plates; the lead screw penetrates through the fixing rings; a lubricating block is fixedly connected to the inner ring of the fixing rings; a plurality of second brushes are fixedly connected to the side walls of the fixing rings; the plurality of second brushes are equidistantly distributed and are in contact with the middle of the lead screw. Through the above structure, the middle of the lead screw can be lubricated in time, thereby reducing the wear caused by the long-term rotation of the lead screw in the middle of the support plate. At the same time, the plurality of second brushes can level the lead screw, reducing the situation that the lubricating block caking in the middle of the lead screw makes the lead screw difficult to rotate.
[0011] Preferably, a dust-proof net is fixedly connected to the middle of the air inlet hole; the dust-proof net is made of elastic material. Through the above structure, it can reduce the situation that too much dust or impurities in the first air duct cause the air to drive the dust or impurities to blow onto the surface of the paper, thereby causing the paper surface to adsorb dust or impurities.
[0012] Preferably, an arc-shaped plate is fixedly connected to one end of the transverse plate away from the convex column; the arc-shaped plate is upwardly warped. Through the above structure, the paper can be placed on the top of the conveyor belt along the contour of the arc-shaped plate and then blocked and limited by the transverse plate.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. For the feeding device of the two-color offset printing machine of the present utility model, the conveyor belt drives the paper to feed the two-color offset printing machine, so as to perform offset printing on the paper. When the paper moves on the top of the conveyor belt, two pressing plates and the cross plate can cooperate to limit the position of the paper, thereby reducing the deviation of the paper's position when it moves on the top of the conveyor belt, which may otherwise make it difficult for the paper to correspond to the two-color offset printing machine and affect the feeding.
[0015] 2. For the feeding device of the two-color offset printing machine of the present utility model, by blowing and pressing the paper on the top of the conveyor belt from above, the paper can be more closely attached to the conveyor belt, thereby reducing the deviation of the paper during movement. At the same time, blowing air on the paper can reduce the situation where residual debris or dust on the paper surface affects subsequent offset printing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present utility model will be further described below with reference to the accompanying drawings.
[0017] Figure 1 is a three-dimensional view of the present utility model;
[0018] Figure 2 is a schematic structural view of the lead screw in the present utility model;
[0019] Figure 3 is a schematic structural view of the second brush in the present utility model;
[0020] Figure 4 is a schematic structural view of the dust-proof net in the present utility model;
[0021] Figure 5 is a schematic structural view of the anti-slip ring in the present utility model;
[0022] In the figure: 1, conveyor belt; 12, support leg; 13, support plate; 14, lead screw; 15, rotating handle; 16, guide rod; 17, pressing plate; 18, cross plate; 19, through hole; 110, sleeve; 111, telescopic rod; 2, vertical plate; 21, air inlet hole; 22, motor; 23, first air duct; 24, air outlet hole; 25, second air duct; 26, rotating rod; 27, fan blade; 3, first support member; 31, convex column; 32, second support member; 33, first brush; 4, fixing ring; 41, second brush; 42, lubricating block; 5, dust-proof net; 6, arc plate; 7, anti-slip ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] As shown Figures 1 to 5 in the figure, a feeding device for a two-color four-color offset printing press according to an embodiment of the present invention includes a conveyor belt 1; two groups of support legs 12 are fixedly connected to the side wall of the conveyor belt 1; the two groups of support legs 12 are arranged in pairs opposite to each other; two support plates 13 are fixedly connected to the side wall of the conveyor belt 1; a lead screw 14 is rotatably connected to the middle of each of the two support plates 13; a rotating handle 15 is fixedly connected to the end of the lead screw 14; an extrusion plate 17 is rotatably connected to the end of the lead screw 14 away from the rotating handle 15; two guide rods 16 are fixedly connected to the side wall of the extrusion plate 17; both of the two guide rods 16 penetrate through the support plate 13; through holes 19 are formed in the side walls of both of the two extrusion plates 17; sleeves 110 are communicated with the ends of the plurality of through holes 19; a telescopic rod 111 is fixedly connected to the inner side wall of the sleeve 110; the end of the sleeve 110 extends to the outside of the extrusion plate 17; a cross plate 18 is fixedly connected to the ends of the plurality of sleeves 110; the cross plate 18 is located above the conveyor belt 1 and has a certain gap from the conveyor belt 1. During operation, the device is placed on the side wall of the two-color four-color offset printing press. At this time, the paper to be offset printed is placed on the top of the conveyor belt 1, and then the conveyor belt 1 is started, and the paper can move on the top of the conveyor belt 1 and then move to the output end of the two-color four-color offset printing press. At this time, with the start of the conveyor belt 1, the rotating handle 15 is rotated synchronously. As the rotating handle 15 rotates, the rotating handle 15 will drive the lead screw 14 to rotate in the middle of the support plate 13. At this time, there is damping in the middle of the support plate 13. As the lead screw 14 rotates, the extrusion plate 17 at the end of the lead screw 14 will move synchronously along the guidance of the two guide rods 16. At this time, by moving the two extrusion plates 17, the two extrusion plates 17 will gradually approach until the two extrusion plates 17 are located at the ends of the paper, so as to realize the limit on both sides of the paper. At the same time, as the two extrusion plates 17 move, the plurality of telescopic rods 111 on the side walls of the extrusion plates 17 will continuously expand and contract. At this time, the cross plate 18 located in the middle of the plurality of telescopic rods 111 will be adjusted in position along with the expansion and contraction of the telescopic rods 111 and always be located above the conveyor belt 1. At this time, the limit and block on the top of the paper can be realized. Through the above structure, the conveyor belt 1 can drive the paper to feed the two-color four-color offset printing press, so as to offset print the paper. When the paper moves on the top of the conveyor belt 1, the two extrusion plates 17 can cooperate with the cross plate 18 to limit the paper, so as to reduce the deviation of the paper position during the movement of the paper on the top of the conveyor belt 1, which may cause the paper to be difficult to correspond to the two-color four-color offset printing press and thus affect the feeding.
[0025] As Figure 1 and Figure 4As shown in the figure, two vertical plates 2 are fixedly connected to the top of the horizontal plate 18; the two vertical plates 2 are symmetrically arranged; an air inlet hole 21 is formed in the side wall of one of the vertical plates 2; a motor 22 is fixedly connected to one side wall of the vertical plate 2 adjacent to the air inlet hole 21; the output end of the motor 22 is fixedly connected to a rotating rod 26; the rotating rod 26 penetrates through the vertical plate 2; a plurality of fan blades 27 are fixedly connected to the middle of the rotating rod 26; the middle parts of the two vertical plates 2 are communicated with a first air duct 23; a plurality of fan blades 27 are all located inside the first air duct 23; a plurality of air outlet holes 24 are formed in the middle of the first air duct 23; a plurality of air outlet holes 24 penetrate through the horizontal plate 18; the middle part of the air outlet hole 24 is communicated with a second air duct 25. During operation, when the paper is placed on the top of the conveyor belt 1, the motor 22 is synchronously started. As the motor 22 is started, the output end of the motor 22 will rotate, thereby driving the rotating rod 26 to rotate. At this time, the rotation of the rotating rod 26 will synchronously drive a plurality of fan blades 27 to rotate. At this time, air is sent into the first air duct 23 through the air inlet hole 21, and then through the fan blades 27, the fan blades 27 can drive the air flow to generate wind. At this time, as the fan blades 27 rotate to generate wind, the wind can enter the inside of the second air duct 25 through a plurality of air outlet holes 24, and then be blown to the top of the conveyor belt 1. At this time, the wind will contact the paper on the top of the conveyor belt 1. Through the above structure, the paper on the top of the conveyor belt 1 can be blown and pressed from above, so that the paper fits more closely to the conveyor belt 1, thereby reducing the deviation of the paper during movement. At the same time, blowing air on the paper can reduce the influence on subsequent offset printing caused by residual debris or dust on the paper surface.
[0026] As Figure 3 shown in the figure, two first support members 3 are fixedly connected to the side wall of the horizontal plate 18; a convex column 31 is fixedly connected to the middle of the two first support members 3; second support members 32 are fixedly connected to both side walls of the horizontal plate 18; the second support members 32 are located above the convex column 31; a plurality of first brushes 33 are fixedly connected to the middle of the second support members 32; the plurality of first brushes 33 are equidistantly distributed and contact the convex column 31. During operation, when the paper moves to the end of the conveyor belt 1 as the conveyor belt 1 starts, it will contact the convex column 31 synchronously. At this time, the height of the convex column 31 is slightly higher than the height of the conveyor belt 1. Therefore, with the drive of the conveyor belt 1, the paper can be driven to move along the contour of the convex column 31. At this time, as the paper moves up, the paper can be brought into contact with the plurality of first brushes 33. Through the above structure, the plurality of first brushes 33 can contact the paper, and the dust or impurities adsorbed on the paper surface can be cleaned by the plurality of first brushes 33. At the same time, the paper in contact with the plurality of first brushes 33 will be smoothed by the plurality of first brushes 33, so that the paper is in a flat state when it enters the output end of the four-color offset printing machine.
[0027] As Figure 4As shown, fixed rings 4 are fixedly connected to the side walls of both of the two support plates 13; the lead screw 14 passes through the fixed rings 4; a lubricating block 42 is fixedly connected to the inner ring of the fixed ring 4; a plurality of second brushes 41 are fixedly connected to the side wall of the fixed ring 4; the plurality of second brushes 41 are equidistantly distributed and are in contact with the middle part of the lead screw 14. During operation, as the rotation handle 15 is rotated, the rotation handle 15 will drive the lead screw 14 to rotate, thereby driving the pressing plate 17 to move to limit the paper. At this time, when the lead screw 14 rotates, the lead screw 14 will come into contact with the inner ring of the fixed ring 4. When the lead screw 14 contacts the inner ring of the fixed ring 4, it can contact the lubricating block 42, and at this time, lubrication of the lead screw 14 can be achieved. At the same time, when the lubricating block 42 is coated on the middle part of the lead screw 14, as the lead screw 14 rotates, it can be simultaneously leveled by the second brushes 41. Through the above structure, the middle part of the lead screw 14 can be lubricated in a timely manner, thereby reducing the wear situation caused by the long-term rotation of the lead screw 14 in the middle of the support plate 13. At the same time, leveling the lead screw 14 with a plurality of second brushes 41 can reduce the situation where the lubricating block 42 caking in the middle of the lead screw 14 makes it difficult for the lead screw 14 to rotate.
[0028] As Figure 1 and Figure 4 As shown, a dust-proof net 5 is fixedly connected to the middle of the air inlet hole 21; the dust-proof net 5 is made of an elastic material. During operation, as the air inlet hole 21 intakes air into the inside of the first air cylinder 23, it can make a plurality of fan blades 27 rotate to generate wind. At this time, by setting the dust-proof net 5, dust or impurities can be reduced from entering the inside of the first air cylinder 23 through the air inlet hole 21. Through the above structure, excessive dust or impurities in the inside of the first air cylinder 23 can be reduced, which may cause the wind to drive the dust or impurities to blow onto the surface of the paper, and then cause dust or impurities to be adsorbed on the surface of the paper.
[0029] As Figure 1 and Figure 2 As shown, an arc-shaped plate 6 is fixedly connected to one end of the cross plate 18 away from the convex column 31; the arc-shaped plate 6 is upwardly warped. During operation, by setting the arc-shaped plate 6, the paper can be guided. Through the above structure, the paper can be placed on the top of the conveyor belt 1 along the contour of the arc-shaped plate 6 and then blocked and limited by the cross plate 18.
[0030] As Figures 1 to 5 As shown, anti-slip rings 7 are fixedly connected to the middle parts of both of the two rotation handles 15. Through the above setting, when the rotation handle 15 is rotated, the lead screw 14 can be driven to rotate. At this time, by setting the anti-slip rings 7, the friction between the rotation handle 15 and the hand can be increased, thereby reducing the situation where the friction between the hand and the lead screw 14 is insufficient and causing the rotation handle 15 to become loose when rotated.
[0031] During operation, place the device on the side wall of a sheet-fed four-color offset press. At this time, place the paper to be offset printed on top of conveyor belt 1, then start conveyor belt 1, and the paper can move on top of conveyor belt 1 and then move to the output end of the sheet-fed four-color offset press. At this time, with the start of conveyor belt 1, synchronously rotate the turning handle 15. As the turning handle 15 rotates, the turning handle 15 will drive the lead screw 14 to rotate in the middle of the support plate 13. At this time, there is a damping in the middle of the support plate 13. As the lead screw 14 rotates, the pressing plates 17 at the ends of the lead screw 14 will move synchronously along the guidance of the two guide rods 16. At this time, by moving the two pressing plates 17, the two pressing plates 17 will gradually approach until the two pressing plates 17 are located at the ends of the paper, thus realizing the limit on both sides of the paper. At the same time, as the two pressing plates 17 move, the multiple telescopic rods 111 on the side walls of the pressing plates 17 will continuously expand and contract. At this time, the cross plate 18 in the middle of the multiple telescopic rods 111 will be adjusted in position as the telescopic rods 111 expand and contract and will always be located above conveyor belt 1. At this time, the limit and block on the top of the paper can be realized. When the paper is placed on top of conveyor belt 1, synchronously start the motor 22. As the motor 22 is started, the output end of the motor 22 will rotate, thereby driving the rotating rod 26 to rotate. At this time, the rotation of the rotating rod 26 will synchronously drive the multiple fan blades 27 to rotate. At this time, air is sent to the first air cylinder 23 through the air inlet hole 21, and then through the fan blades 27, the fan blades 27 can drive the air flow to generate wind. At this time, as the wind is generated by the rotation of the fan blades 27, the wind can pass through the multiple air outlet holes 24 and enter the inside of the second air cylinder 25, and then blow to the top of conveyor belt 1. At this time, the wind will contact the paper on the top of conveyor belt 1. When the paper moves to the end of conveyor belt 1 as conveyor belt 1 starts, it will synchronously contact the convex column 31. At this time, the height of the convex column 31 is slightly higher than the height of conveyor belt 1. Therefore, with the drive of conveyor belt 1, the paper can be driven to move along the contour of the convex column 31. At this time, as the paper moves up, the paper can contact the multiple first brushes 33. As the turning handle 15 is rotated, the turning handle 15 will drive the lead screw 14 to rotate, thereby driving the pressing plate 17 to move to realize the limit on the paper. At this time, when the lead screw 14 rotates, the lead screw 14 will contact the inner ring of the fixed ring 4. When the lead screw 14 contacts the inner ring of the fixed ring 4, it can contact the lubricating block 42. At this time, the lubrication of the lead screw 14 can be realized. At the same time, when the lubricating block 42 is coated on the middle of the lead screw 14, as the lead screw 14 rotates, it can be swept flat by the second brush 41 synchronously. As air enters the inside of the first air cylinder 23 through the air inlet hole 21, the multiple fan blades 27 can be made to rotate to generate wind. At this time, by setting the dust-proof net 5, the entry of dust or impurities into the inside of the first air cylinder 23 through the air inlet hole 21 can be reduced. By setting the arc-shaped plate 6, the paper can be guided.
[0032] The basic principles, main features, and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A feeding device for a two-color offset printing press, comprising a conveyor belt (1); characterized in that: Two sets of support legs (12) are fixedly connected to the side walls of the conveyor belt (1); the two sets of support legs (12) are arranged in pairs opposite to each other; two support plates (13) are fixedly connected to the side walls of the conveyor belt (1); lead screws (14) are rotatably connected to the middle parts of the two support plates (13); a rotating handle (15) is fixedly connected to the end of the lead screw (14); an extrusion plate (17) is rotatably connected to the end of the lead screw (14) far from the rotating handle (15); two guide rods (16) are fixedly connected to the side wall of the extrusion plate (17); the two guide rods (16) penetrate through the support plate (13); through holes (19) are formed in the side walls of the two extrusion plates (17); sleeves (110) are communicated with the ends of the plurality of through holes (19); a telescopic rod (111) is fixedly connected to the inner side wall of the sleeve (110); the end of the sleeve (110) extends to the outside of the extrusion plate (17); a cross plate (18) is fixedly connected to the ends of the plurality of sleeves (110); the cross plate (18) is located above the conveyor belt (1) and has a certain gap from the conveyor belt (1).
2. The feeding device of an octuple-color offset printing press according to claim 1, wherein: Two vertical plates (2) are fixedly connected to the top of the cross plate (18); the two vertical plates (2) are symmetrically arranged; an air inlet hole (21) is formed in the side wall of one of the vertical plates (2); a motor (22) is fixedly connected to one side wall of the vertical plate (2) adjacent to the air inlet hole (21); a rotating rod (26) is fixedly connected to the output end of the motor (22); the rotating rod (26) penetrates through the vertical plate (2); a plurality of fan blades (27) are fixedly connected to the middle of the rotating rod (26); a first air duct (23) is communicated with the middle parts of the two vertical plates (2); the plurality of fan blades (27) are all located inside the first air duct (23); a plurality of air outlet holes (24) are formed in the middle of the first air duct (23); the plurality of air outlet holes (24) penetrate through the cross plate (18); a second air duct (25) is communicated with the middle of the air outlet hole (24).
3. The feeding device for a two-color offset printing machine according to claim 2, characterized in that: Two first support members (3) are fixedly connected to the side wall of the cross plate (18); a convex column (31) is fixedly connected to the middle of the two first support members (3); second support members (32) are fixedly connected to the two side walls of the cross plate (18); the second support members (32) are located above the convex column (31); a plurality of first brush hairs (33) are fixedly connected to the middle of the second support members (32); the plurality of first brush hairs (33) are equidistantly distributed and contact the convex column (31).
4. A feeding device for an octuple offset printing machine according to claim 3, characterized in that: Fixed rings (4) are fixedly connected to the side walls of the two support plates (13); the lead screw (14) penetrates through the fixed ring (4); a lubricating block (42) is fixedly connected to the inner ring of the fixed ring (4); a plurality of second brush hairs (41) are fixedly connected to the side wall of the fixed ring (4); the plurality of second brush hairs (41) are equidistantly distributed and contact the middle of the lead screw (14).
5. The feeding device for a two-color offset printing press according to claim 4, wherein: A dust-proof net (5) is fixedly connected to the middle of the air inlet hole (21); the dust-proof net (5) is made of an elastic material.
6. The loading device of an octuple-color offset printing press according to claim 5, characterized in that: An arc-shaped plate (6) is fixedly connected to the end of the cross plate (18) far from the convex column (31); the arc-shaped plate (6) is upturned.