CN213325770U

CN213325770U - Quick feed mechanism

Info

Publication number: CN213325770U
Application number: CN202021466416.XU
Authority: CN
Inventors: 路大如
Original assignee: Hangzhou Xiaoshan Haifeng Printing Co ltd
Current assignee: Hangzhou Xiaoshan Haifeng Printing Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-06-01
Anticipated expiration: 2030-07-22

Abstract

The application relates to a quick feeding mechanism, which relates to the technical field of printing and comprises a containing assembly for containing paper, a picking assembly arranged right above the containing assembly and used for picking the paper in pages, and a plurality of first feeding assemblies arranged beside the containing assembly and used for feeding the paper into a printing machine, wherein each first feeding assembly comprises a positioning piece, each positioning piece comprises a vertically arranged positioning plate, a feeding roller horizontally and rotatably arranged on the positioning plate and a driving motor for driving the roller to rotate, the axis of the feeding roller is perpendicular to the feeding direction of the printing machine, and the axis of the feeding roller is perpendicular to the main plane of the positioning plate; a long-shaped offset piece is spirally fixed on the feeding roller along the axial direction. The application has the effect of improving the printing quality.

Description

Quick feed mechanism

Technical Field

The application relates to the field of printing, in particular to a quick feeding mechanism.

Background

An offset printing machine is a kind of offset printing machine, when printing, a blanket cylinder for printing pictures and texts is firstly made, and then the images and texts are transferred to paper by the blanket cylinder. Offset presses can be divided into sheet-fed offset presses and web-fed offset presses according to different paper feeding modes; the printing colors finished by one-time paper feeding can be divided into single-color, double-color, four-color and multi-color printing machines.

According to the chinese patent with the publication number CN101108551B, it discloses a sheet-fed offset printing press for double-sided multicolor printing, comprising a first row of printing devices arranged one after the other for printing a first side of a sheet; a turn-over device following the printing device; a second row of printing units following the reversing device and arranged one behind the other for printing on another sheet; and at least two varnishing units following the second line printing unit, the varnishing units or the blanket cylinders thereon being arranged in such a way that the front and back sides of the passing-through sheet are varnishinged, wherein a further turn-over unit is inserted between the two varnishing units. This solution has the advantage of double-sided multicolor printing.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the paper is fed, the paper feeding angle cannot be corrected after the paper has an angle deviation, so that the defect of printing quality problem is caused.

SUMMERY OF THE UTILITY MODEL

In order to make the improvement print quality, this application provides a quick feed mechanism.

In a first aspect, the application provides a quick feed mechanism that adopts following technical scheme:

a quick feeding mechanism comprises a containing assembly for containing paper, a picking assembly arranged right above the containing assembly and used for picking the paper in pages, and a plurality of first feeding assemblies arranged beside the containing assembly and used for feeding the paper into a printing machine, wherein each first feeding assembly comprises a positioning piece, each positioning piece comprises a vertically arranged positioning plate, a feeding roller horizontally and rotatably arranged on the positioning plate and a driving motor for driving the roller to rotate, the axis of the feeding roller is perpendicular to the feeding direction of the printing machine, and the axis of the feeding roller is perpendicular to the main plane of the positioning plate; a long-strip-shaped offset piece is spirally fixed on the feeding roller in the direction of the electric main line.

Through adopting above-mentioned technical scheme, pick up the subassembly through the paper and pick up the paper paging, appear under the incorrect condition of position angle at the release paper, the cooperation of heliciform skew piece and locating plate on the paper feed roll for the paper edge is laminated with the main plane of locating plate, makes paper feeding angle correct, improves printing quality.

Preferably, the offset member is made of elastic rubber.

Through adopting above-mentioned technical scheme, the piece 33 that squints of rubber preparation makes the frictional force of exerting on the paper bigger, is favorable to the positional deviation of paper more.

Preferably, the positioning plate is further provided with a second feeding assembly, the second feeding assembly comprises a rotating roller which is rotatably provided with two arc surfaces and abutted against each other, and the axis of the rotating roller is parallel to the feeding roller.

Through adopting above-mentioned technical scheme, second pay-off subassembly can enter into the printing machine for the paper and provide power, plays the effect of leveling the paper simultaneously.

Preferably, the arc surface of the rotating roller is provided with an elastic friction ring.

Through adopting above-mentioned technical scheme, the friction ring is used for increasing the frictional force of live-rollers and reduces the paper and appear the possibility of skidding between two live-rollers.

Preferably, the two positioning plates are arranged in parallel; the containing assembly comprises a bearing plate arranged between two positioning plates arranged in parallel, and the bearing plate is arranged in the middle of the positioning plates; the picking assembly is arranged between the two positioning plates and comprises a rotating shaft, a negative pressure pipe fixed on the rotating shaft and used for sucking the paper, and a driving assembly for driving the rotating shaft to rotate.

Through adopting above-mentioned technical scheme, the loading board is used for depositing the paper of treating the printing, and negative pressure pipe absorbs the paper and is favorable to paging more and picks up.

Preferably, the driving assembly comprises a dowel bar fixed at one end of the rotating shaft and a driving cylinder hinged on the dowel bar, the axis of the dowel bar is perpendicular to that of the rotating shaft, and the driving cylinder is an air cylinder or a hydraulic cylinder or a linear electric cylinder.

By adopting the technical scheme, the driving assembly is used for driving the rotating shaft, so that the sucked paper can be moved to the feeding roller of the first feeding assembly; the driving cylinder has the characteristics of small occupied space and quick response, and can reduce the occupied space of the driving assembly, so that the overall structure of the feeding mechanism is more compact.

Preferably, one end of the negative pressure pipe, which is far away from the rotating shaft, is provided with a sucking disc communicated with the negative pressure pipe.

Through adopting above-mentioned technical scheme, compare the pipeline, the sucking disc has bigger absorption mouth for it is more convenient when picking up the mechanism and absorbing the paper.

Preferably, the suction cup is made of elastic rubber.

Through adopting above-mentioned technical scheme, when the sucking disc contacted with the paper, the sucking disc of rubber preparation can reduce the paper and receive the possibility of impact deformation.

In a second aspect, the application provides a printing apparatus using a fast feeding mechanism, which adopts the following technical scheme:

a printing device applying a quick feeding mechanism comprises a printing machine and a feeding mechanism used for feeding paper to the printing machine; and a rotating roller of the feeding mechanism is arranged outside a feeding hole of the printing machine.

Through adopting above-mentioned technical scheme, use this feed mechanism can correct the angular deviation of paper for the product quality of printing machine printing is higher.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first feeding mechanism provided with the spiral offset piece and the positioning plate act together, so that the possibility of incorrect paper feeding angle can be reduced, and the printing quality is improved;

2. the second feeding mechanism can improve power for paper entering the printing machine and can play a role in flattening the paper.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram showing the installation relationship of the parts of the picking assembly.

Fig. 3 is a schematic structural view of the first feeding assembly.

Fig. 4 is a schematic structural view of the second feed assembly.

Fig. 5 is a schematic view of the overall structure of embodiment 2 of the present application.

Description of reference numerals: 1. a containment assembly; 11. a base; 12. a carrier plate; 2. a picking assembly; 21. a rotating shaft; 22. a negative pressure tube; 23. a drive assembly; 231. a dowel bar; 232. a drive cylinder; 24. a suction cup; 25. a rotating frame; 251. a long bar member; 3. a first feeding assembly; 31. positioning a plate; 311. a notch; 32. a feed roller; 33. a biasing member; 4. a second feeding assembly; 41. a rotating roller; 42. a friction ring; 5. a power assembly; 51. a transmission gear; 52. a reversing gear; 6. a printing press; 61. a split roll printing machine; 611. and (4) feeding a material inlet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses quick feed mechanism. Referring to fig. 1, a fast feeding mechanism comprises a containing assembly 1 for containing paper, a picking assembly 2 arranged right above the containing assembly 1 and used for picking up the paper in pages, and a plurality of first feeding assemblies 3 arranged beside the containing assembly 1 and used for feeding the paper into a printing machine 6, wherein each first feeding assembly 3 comprises a positioning piece, each positioning piece comprises a vertically arranged positioning plate 31, a feeding roller 32 horizontally and rotatably arranged on the positioning plate 31 and a driving motor for driving the roller to rotate, the axis of the feeding roller 32 is perpendicular to the feeding direction of the printing machine 6, and the axis of the feeding roller 32 is perpendicular to the main plane of the positioning plate 31; an elongated offset member 33 is screwed to the feed roller 32 in the axial direction thereof. The device has the advantage of improving the printing quality.

Example 1

Referring to fig. 1, the containing assembly 1 comprises a base 11, wherein the base 11 is a rectangular steel plate; two positioning plates 31 are fixed on two sides of the base 11, the positioning plates 31 are two rectangular steel plates arranged in parallel, and the positioning plates 31 can be fixed on the base 11 by welding or bolts.

The two parallel positioning plates 31 and the base 11 form a groove body, a bearing plate 12 is fixed between the two parallel positioning plates 31, the bearing plate 12 is a rectangular steel plate, and the bearing plate 12 can be fixed in the middle of the positioning plates 31 by welding or bolts. The bearing plate 12 is used for containing paper to be printed, and the base 11 can be used for containing standby paper, so that the workload of back-and-forth transportation of an operator between a warehouse for storing paper and a working site is reduced.

A notch 311 is formed at the top of the positioning plate 31, and the notch 311 is used for installing the electromechanical control button.

Referring to fig. 1 and 2, a pickup assembly 2 is installed directly above the carrier plate 12, and the pickup assembly 2 includes a rotation shaft 21 rotatably connected between two positioning plates 31, a negative pressure pipe 22, and a driving assembly 23. The rotating shaft 21 is a cylindrical rod, the rotating shaft 21 is rotatably mounted between the two positioning plates 31, and one end of the rotating shaft 21 extends out of the positioning plates 31.

The rotating frame 25 is fixed on the rotating shaft 21, the rotating frame 25 includes three long rod members 251, the three long rod members 251 enclose a rectangular frame with one side open, and adjacent long rod members 251 can be fixed and formed by bolts. The open end of the rotating frame 25 is fixed on the rotating shaft 21, the closed end of the rotating frame 25 is fixed with the negative pressure pipe 22, the negative pressure pipe 22 is a tubular member with two open ends, and the axis of the negative pressure pipe 22 is vertical to the main plane of the base 11. A suction cup 24 is fixed to the end of the suction pipe 22 that opens into the carrier plate 12.

The suction cup 24 can be made of rubber into a circular truncated cone shell member with an open large end, and the small end of the suction cup 24 is closed and communicated with the negative pressure pipe 22. The suction cup 24 can optionally be fitted over the suction tube 22. When the paper is picked up, the rotating shaft 21 rotates around the axis of the rotating shaft to enable the suction cup 24 to be in contact with the paper, the negative pressure pipe 22 is communicated with the vacuum generator through the control valve, the paper is sucked by the negative pressure pipe 22, and the paper can be picked up in a paging mode by the reverse rotation of the rotating shaft 21. The rubber suction cup 24 can reduce the possibility of impact deformation of the paper.

Referring to fig. 2, the driving assembly 23 is mounted on the rotating shaft 21, the driving assembly 23 includes a dowel 231 fixed at one end of the rotating shaft 21 extending out of the positioning plate 31, the dowel 231 is a rod-shaped member, and the dowel 231 and the rotating shaft 21 can be fixed by bolts. One end of the dowel bar 231, which is far away from the rotating shaft 21, is hinged with a driving cylinder 232, the driving cylinder 232 can select a commercially available air cylinder or hydraulic cylinder or linear electric cylinder, one end of the driving cylinder 232 is hinged with the dowel bar 231, and the other end of the driving cylinder 232 is hinged on the positioning plate 31.

Referring to fig. 1 and 3, the first feeding assembly 3 is installed between the two positioning plates 31 and adjacent to the picking assembly 2. Three first feeding assemblies 3 are selected and used, each first feeding assembly 3 comprises a feeding roller 32 which is rotatably installed between two positioning plates 31, each feeding roller 32 is a cylindrical rod, one end of each feeding roller 32 extends out of the corresponding positioning plate 31, an offset part 33 is spirally fixed on the cylindrical surface of each feeding roller 32 along the axial direction of the cylindrical surface, each offset part 33 is in a long condition, each offset part 33 is made of elastic rubber, and each offset part 33 can be fixed on the surface of each feeding roller 32 through bolts or bonding. The rubber offset member 33 makes the friction force applied on the paper larger, and is more beneficial to the position offset of the paper.

After the picking assembly 2 picks up and places the paper on the first feeding assembly 3, the paper moves towards the discharge opening of the feeding mechanism under the action of the rotating feeding roller 32 and the offset piece 33, and moves towards the positioning plate 31 on one side under the action of the offset piece 33, the angle of the paper of an incorrect angle is changed to a correct direction under the combined action of the offset piece 33 and the positioning plate 31, and the printing quality is improved.

Referring to fig. 1 and 4, a second feeding assembly 4 is further installed between the two positioning plates 31, and the second feeding assembly 4 is installed adjacent to the first feeding assembly 3. The second feeding assembly 4 includes two rotating rollers 41 rotatably mounted between the two positioning plates 31, the rotating rollers 41 are cylindrical long rods, one end of one of the rotating rollers 41 extends out of the positioning plate 31, friction rings 42 are fixed on one of the rotating rollers 41 at intervals along the axial direction thereof, and the friction rings 42 may be made of elastic rubber. The outer arc surface of the friction ring 42 abuts against the arc surface of the adjacent rotating roller 41. The second feeding assembly 4 is used for feeding paper into the printing machine 6, and the second feeding assembly 4 has a function of flattening the paper.

The feeding roller 32 extending out of the positioning plate 31 and the rotating roller 41 extending out of the positioning plate 31 are in the same plane, a power assembly 5 for driving each roller to rotate is mounted on the positioning plate 31, the power assembly 5 comprises a transmission gear 51 fixed at the extending end of each roller and a plurality of reversing gears 52 rotatably mounted between the adjacent transmission gears 51, and the reversing gears 52 are used for changing the transmission direction so that the rotating directions of the rollers in the same plane are the same. The positioning plate 31 is provided with a driving motor, an output shaft of the driving motor is connected with one of the gears, and the driving motor can be purchased in the market.

The procedure used in example 1 was: placing the paper to be printed on the bearing plate 12, and starting the driving motor; starting the driving cylinder 232 to enable the rotating shaft 21 to rotate the other suction cup 24 to be close to the paper, communicating the negative pressure pipe 22 with the vacuum pump to enable the suction cup 24 to form negative pressure, and sucking the paper on the suction cup 24; in addition, the cylinder 232 is driven to move reversely, in the process that the pickup assembly 2 lifts up the paper, the negative pressure pipe 22 is blocked, so that the suction cup 24 releases the lifted paper, the paper continues to move forwards to the feeding roller 32 under the action of inertia, the paper moves towards the positioning plate 31 on one side under the action of the feeding roller 32 and the spiral deviation piece 33, the paper deflected in angle is corrected under the action of the positioning plate 31, the first feeding assembly 3 feeds the paper into the second feeding assembly 4, and the paper flattened by the second feeding assembly 4 is sent to the printing machine 6 for printing.

Example 2

Referring to fig. 5, in a printing apparatus using a fast feeding mechanism, a printing machine 6 includes a plurality of split roller printing machines 61 arranged in a row, a feeding mechanism is installed beside the printing machine 6, a rotating roller 41 of the feeding mechanism is located near an outer side of a feeding port 611 of the printing machine 6, and when paper passes through the feeding mechanism, the paper is fed into the printing machine 6 to perform step printing.

The advantage of this example is that the printing quality of a printing device feeding paper via a fast feed mechanism is higher, reducing the possibility of affecting the printing quality due to an incorrect angle of paper feeding.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a quick feed mechanism which characterized in that: the paper sorting machine comprises a containing assembly (1) for containing paper, a pickup assembly (2) arranged right above the containing assembly (1) and used for picking up the paper in a paging mode, and a plurality of first feeding assemblies (3) arranged beside the containing assembly (1) and used for feeding the paper into a printing machine (6), wherein each first feeding assembly (3) comprises a positioning piece, each positioning piece comprises a vertically arranged positioning plate (31), a feeding roller (32) horizontally and rotatably arranged on the positioning plate (31) and a driving motor for driving the roller to rotate, the axis of the feeding roller (32) is perpendicular to the feeding direction of the printing machine (6), and the axis of the feeding roller (32) is perpendicular to the main plane of the positioning plate (31); an elongated offset member (33) is fixed to the feed roller (32) in a spiral manner along the axial direction thereof.

2. A rapid feeding mechanism according to claim 1, characterized in that: the offset part (33) is made of elastic rubber.

3. A rapid feeding mechanism according to claim 1, characterized in that: the positioning plate (31) is further provided with a second feeding assembly (4), the second feeding assembly (4) comprises a rotating roller (41) which is rotatably provided with two arc surfaces and abutted against each other, and the axis of the rotating roller (41) is parallel to the feeding roller (32).

4. A rapid feeding mechanism according to claim 3, characterized in that: the arc surface of the rotating roller (41) is provided with an elastic friction ring (42).

5. A rapid feeding mechanism according to claim 2, characterized in that: two positioning plates (31) are arranged in parallel; the containing assembly (1) comprises a bearing plate (12) arranged between two positioning plates (31) arranged in parallel, and the bearing plate (12) is arranged in the middle of the positioning plates (31); the picking assembly (2) is arranged between the two positioning plates (31), and the picking assembly (2) comprises a rotating shaft (21), a negative pressure pipe (22) fixed on the rotating shaft (21) and used for sucking paper, and a driving assembly (23) for driving the rotating shaft (21) to rotate.

6. A rapid feeding mechanism according to claim 5, characterized in that: the driving assembly (23) comprises a dowel bar (231) fixed at one end of the rotating shaft (21) and a driving cylinder (232) hinged on the dowel bar (231), the axis of the dowel bar (231) is perpendicular to the axis of the rotating shaft (21), and the driving cylinder (232) is an air cylinder, a hydraulic cylinder or a linear electric cylinder.

7. A rapid feeding mechanism according to claim 5, characterized in that: and one end of the negative pressure pipe (22) far away from the rotating shaft (21) is provided with a sucker (24) communicated with the negative pressure pipe (22).

8. A rapid feeding mechanism according to claim 7, characterized in that: the sucking disc (24) is made of elastic rubber.