CN215207495U

CN215207495U - Paper feeding mechanism

Info

Publication number: CN215207495U
Application number: CN202022838175.3U
Authority: CN
Inventors: 梁耀强
Original assignee: Shenzhen Tianbang Printing And Packaging Co ltd
Current assignee: Shenzhen Tianbang Printing And Packaging Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-12-17
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a lithography apparatus's technical field aims at providing a paper feed mechanism, including being used for stacking putting the paper platform and setting of paper buttress put the platform of form advancing of paper platform one side, the top of putting the paper platform is provided with paper transfer mechanism, branch paper mechanism and nipper and constructs, the side of putting the paper platform is provided with the pine paper mechanism, the upper end of pine paper mechanism is provided with and keeps off the paper brush, put the paper platform with it is provided with thickness detection mechanism to form advance between the platform. The utility model discloses a set up and keep off paper brush and thickness detection mechanism and can realize the sola to go up paper in succession steadily.

Description

Paper feeding mechanism

Technical Field

The utility model relates to a lithography apparatus's technical field, concretely relates to paper feed mechanism.

Background

Modern printing machines are generally composed of mechanisms for plate loading, inking, stamping, paper feeding, etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred onto paper or other printing material, so that the same printed matter as that of the printing plate can be reproduced. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

In the printing machine, the paper feeding mechanism is used for continuously feeding paper to the printing machine, the requirement is accurate and correct in the working process, and double or multiple paper sheets and empty paper sheets can not appear. When absorbing a paper on the top of a paper pile, especially when absorbing thin paper, the existing paper feeding mechanism is easy to absorb double or multiple papers once, and if the double or multiple papers are fed into a printing machine to be printed at the same time, the paper jamming phenomenon can be generated, so that the equipment is stopped, the waste of the papers is caused, the working efficiency is influenced, and great troubles are caused to producers.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective is to solve the material loading instability that prior art paper feed mechanism exists, appears two or more material loading easily and leads to the problem of printing card paper.

In order to realize the technical problem, the utility model provides a can stably realize the continuous paper feed mechanism of going up of sola.

The utility model adopts the technical proposal that: including the platform of form advancing of putting paper platform and setting that is used for stacking the paper buttress put paper platform one side, the top of putting the paper platform is provided with paper feed mechanism, branch paper mechanism and nipper and constructs, the side of putting the paper platform is provided with paper loosening mechanism 6, the upper end of paper loosening mechanism 6 is provided with the fender paper brush, put the paper platform with it is provided with thickness detection mechanism to form advance between the platform.

Optionally, the thickness detection mechanism is an ultrasonic detection assembly disposed at the front end of the paper feeding platform.

Optionally, the paper transfer mechanism includes a first air cylinder vertically arranged, a second air cylinder horizontally arranged and connected to the first air cylinder, a third air cylinder obliquely arranged and connected to the second air cylinder, and a paper transfer nozzle connected to the third air cylinder.

Optionally, put the paper platform with be provided with paper receiving roller between the platform of form advancing, paper receiving roller's top is provided with the roller of form advancing, paper feeding roller sets up on removing the slide, be provided with first spring on removing the slide, the one end of first spring with remove slide fixed connection, the other end with paper feeding roller is connected.

Optionally, a bridge plate is arranged between the paper receiving roller and the paper feeding platform, one end of the bridge plate is connected with the paper receiving roller, and the other end of the bridge plate is connected with the paper feeding platform.

Optionally, the paper feeding platform includes a paper feeding plate, a belt transmission mechanism disposed on the paper feeding plate, and a paper guide mechanism disposed above the paper feeding plate.

Optionally, the tail end of the paper feeding platform is provided with a stop gauge, and the stop gauge comprises a paper stop front gauge and a paper stop side gauge.

Optionally, the belt transmission mechanism includes a belt, and a driving belt roller and a driven belt roller respectively disposed at two ends of the sheet feeding plate, a plurality of tensioning wheels are disposed between the driving belt roller and the driven belt roller, and the belt is connected to the driving belt roller and the driven belt roller by bypassing the plurality of tensioning wheels.

Optionally, the paper guide mechanism includes a bracket, and a front paper pressing wheel, a rear paper pressing wheel, a paper pressing ball, and a paper pressing brush wheel sequentially arranged along the paper direction. The front paper pressing wheel, the rear paper pressing wheel, the paper pressing ball and the paper pressing hairbrush wheel are all arranged on the support, and the lower end of the front paper pressing wheel is provided with a paper pressing sheet.

Optionally, the paper placing platform comprises a bottom plate and a bearing plate arranged above the bottom plate, guide rods are arranged at four corners of the bottom plate, the bearing plate is in sliding fit with the guide rods, a second spring is sleeved on the guide rods, one end of the second spring is connected with the bottom plate, and the other end of the second spring is connected with the bearing plate.

According to the technical scheme, the paper feed mechanism of the application has the advantages and positive effects that: the upper end of the paper loosening mechanism is provided with the paper blocking hairbrush, so that a plurality of paper sheets can be prevented from being sucked by the paper separating mechanism, and the paper blocking hairbrush can brush redundant paper sheets sucked by the paper separating mechanism back to a paper stack to ensure that a single paper sheet is fed with paper; the paper feeding device is characterized in that a thickness detection mechanism is arranged between the paper placing platform and the paper feeding platform, the thickness detection mechanism can detect the thickness of paper, when a detection value is larger than a preset value, double or multiple pieces of paper are fed, the machine is automatically stopped, the condition that paper jam or paper is scrapped is avoided, and single paper feeding is further ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for a person skilled in the art that other drawings can be obtained according to the drawings without inventive exercise:

FIG. 1 is a schematic diagram of the structure of the present invention;

wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is as follows:

1. the paper feeding device comprises a paper placing platform, 2, a paper feeding platform, 3, a paper conveying mechanism, 4, a paper separating mechanism, 5, a paper pressing mechanism, 6, a paper loosening mechanism, 7, a paper blocking brush, 8, a thickness detection mechanism, 9, a paper receiving roller, 10, a paper feeding roller, 11, a moving sliding seat, 12, a first spring, 13, a bridge plate, 21, a paper feeding plate, 22, a belt transmission mechanism, 23, a paper guide mechanism, 24, a stop gauge, 231, a support, 232, a front paper pressing wheel, 233, a rear paper pressing wheel, 234, a paper pressing ball, 235 and a paper pressing brush wheel.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying fig. 1 in conjunction with an embodiment.

As shown in fig. 1, in the present embodiment, the paper feeding mechanism includes a paper placing platform 1 for placing a stack of paper and a paper feeding platform 2 disposed on one side of the paper placing platform 1, and the paper feeding platform 2 is used for feeding paper to be printed into the printing machine.

A paper transferring mechanism 3, a paper separating mechanism 4 and a paper pressing mechanism 5 are arranged above the paper placing platform 1, and a paper loosening mechanism 6 is arranged on the side surface of the paper placing platform 1. The paper separating mechanism 4 is used for sucking the uppermost paper from the paper stack; the paper transfer mechanism 3 is used for receiving the separated paper passing through the paper separating mechanism 4 and conveying the paper to the paper feeding platform 2; the paper pressing mechanism 5 has the functions of 1 pressing the paper stack to prevent excessive paper from being blown up during paper separation, 2 blowing air under the separated paper to further separate the paper from the paper stack, and 3 detecting the height of the paper stack; the paper loosening mechanism 6 functions to blow loose the uppermost 5 or so sheets of paper in the stack so that the paper separating mechanism 4 separates the uppermost sheet of paper in the stack.

In order to avoid the paper separating mechanism 4 from sucking up a plurality of pieces of paper, the upper end of the paper loosening mechanism 6 is provided with a paper blocking hairbrush 7, and the paper blocking hairbrush 7 can brush the redundant paper sucked by the paper separating mechanism 4 back into the paper stack to ensure that a single piece of paper is fed; in order to further ensure that a single sheet of paper can be fed, a thickness detection mechanism 8 is arranged between the paper placing platform 1 and the paper feeding platform 2, the thickness detection mechanism 8 can detect the thickness of the paper, when the detection value is larger than the preset value, the paper feeding with two or more sheets is indicated, the machine is automatically stopped, and the condition that paper is jammed or the paper is scrapped is avoided.

Preferably, in this embodiment, the thickness detection mechanism 8 is an ultrasonic detection component disposed at the front end of the paper feeding platform 2, the ultrasonic detection component includes a transmitter and a receiver, the receiver receives a signal sent by the transmitter, when the paper passes through, the signal received by the receiver attenuates, and the thickness of the paper is determined according to the value of the signal attenuation.

Specifically, in this embodiment, the paper separating mechanism 4 includes a vertically arranged fourth cylinder, a fifth cylinder which is obliquely arranged and connected with the fourth cylinder, and a paper separating suction nozzle arranged on the fifth cylinder. The fourth cylinder controls the up-and-down motion of the paper separating suction nozzle to ensure that the paper separating suction nozzle reliably contacts with the paper and the paper on the uppermost layer is separated from the paper stack, and the fifth cylinder ensures that the paper separating suction nozzle can immediately turn over an angle after sucking the paper to avoid the occurrence of double sheets and multiple sheets.

Specifically, in this embodiment, the paper feeding mechanism 3 includes a first cylinder vertically disposed, a second cylinder horizontally disposed and connected to the first cylinder, a third cylinder obliquely disposed and connected to the second cylinder, and a paper feeding suction nozzle connected to the third cylinder. The first air cylinder is used for controlling the paper transfer suction nozzle to descend onto the paper surface, the paper transfer suction nozzle sucks the paper, the third air cylinder is used for controlling the paper transfer suction nozzle to move the paper upwards and towards the direction of the paper separating mechanism 4, so that the paper between the two suction nozzles is loosened, the paper is prevented from being torn, and the second air cylinder is used for controlling the paper transfer suction nozzle to finish the transfer of the paper to the paper feeding platform 2.

Specifically, in this embodiment, the paper pressing mechanism 5 includes a horizontally disposed sixth cylinder, a vertically disposed seventh cylinder connected to the sixth cylinder, and a paper pressing blow nozzle disposed on the seventh cylinder. The sixth cylinder controls the swing of the paper pressing blowing nozzle so as to avoid the interference of the paper pressing blowing nozzle and paper when the paper separating suction nozzle and the paper transferring suction nozzle work, and the seventh cylinder ensures that the paper pressing blowing nozzle is vertical during the movement of the paper pressing blowing nozzle during the paper pressing so as to avoid the paper from being rubbed to cause the disordered paper.

In one embodiment, a paper receiving roller 9 is arranged between the paper placing platform 1 and the paper feeding platform 2, a paper feeding roller 10 is arranged above the paper receiving roller 9, the paper receiving roller 9 receives the paper sent by the paper transferring mechanism 3, and the paper is conveyed to the paper feeding platform 2 by means of friction force between the paper receiving roller 9 and the paper feeding roller 10. The paper feeding roller 10 is arranged on a moving slide 11, and the moving slide 11 can move up and down and is used for adjusting the distance between the paper feeding roller 10 and the paper receiving roller 9 so as to adapt to the transportation of paper with different thicknesses. The moving slide 11 is provided with a first spring 12, one end of the first spring 12 is fixedly connected with the moving slide 11, and the other end is connected with the paper feeding roller 10.

In one embodiment, a bridge plate 13 is arranged between the paper receiving roller 9 and the paper feeding platform 2, one end of the bridge plate 13 is connected with the paper receiving roller 9, the other end of the bridge plate 13 is connected with the paper feeding platform 2, and the bridge plate 13 plays an excessive role to ensure that paper can be stably conveyed from the paper receiving roller 9 to the paper feeding platform 2.

In this embodiment, the paper needs to be aligned before being fed into the printing press, so that the stop gauge 24 is provided at the end of the paper feeding platform 2, and the stop gauge 24 includes one side stop gauge and two front stop gauges. When positioning, the two paper blocking front gauges are used for positioning the paper in the front-back direction, and the paper blocking side gauges are used for positioning the paper in the left-right direction. The positioning significance lies in ensuring that the pictures and texts are printed at the same position of each piece of paper, ensuring the accurate position of the pictures and texts on the paper during monochromatic printing and the registration during multicolor printing and double-sided printing so as to ensure the printing precision.

In this embodiment, the paper feeding platform 2 includes a paper feeding plate 21, a belt transmission mechanism 22 disposed on the paper feeding plate 21, and a paper guide mechanism 23 disposed above the paper feeding plate 21, the paper feeding plate 21 is used for supporting a belt to convey paper and eliminating static electricity, the belt transmission mechanism 22 is used for conveying paper to the printing machine, and the mechanism is used for ensuring the paper to move stably on the paper feeding plate 21 and avoiding relative sliding between the paper and the paper feeding plate 21.

Specifically, belt drive mechanism 22 includes the belt and sets up initiative area roller and the driven area roller at form feeding plate 21 both ends respectively, and the initiative area roller is connected with the motor, provides transmission power, is provided with a plurality of take-up pulleys between initiative area roller and the driven area roller, and the belt is connected on initiative area roller and driven area roller around a plurality of take-up pulleys, through the position of adjusting the take-up pulley, can adjust the elasticity degree of belt, avoids the belt phenomenon of skidding to appear.

Specifically, the paper guide mechanism 23 includes a bracket 231, and a front paper pressing wheel 232, a rear paper pressing wheel 233, a paper pressing ball 234, and a paper pressing brush wheel 235 that are sequentially arranged along the paper direction. The front paper pressing wheel 232, the rear paper pressing wheel 233, the paper pressing ball 234 and the paper pressing brush wheel 235 are all arranged on the bracket 231, and the lower end of the front paper pressing wheel 232 is provided with a paper pressing sheet. The front paper pressing wheel 232 and the rear paper pressing wheel 233 enable paper to be reliably contacted with the belt, and sufficient friction force is generated, so that the paper moves forwards stably, and the paper and the belt are prevented from sliding relatively; the paper pressing brush wheel 235 and the paper pressing ball 234 can prevent the paper from rebounding after being positioned, the paper pressing brush wheel 235 is used when thin paper is printed, and the paper pressing ball 234 is used when thick paper is printed.

In one embodiment, the paper placing platform 1 includes a bottom plate and a support plate disposed above the bottom plate, guide rods are disposed at four corners of the bottom plate, the support plate is slidably engaged with the guide rods, a second spring is sleeved on the guide rods, one end of the second spring is connected to the bottom plate, and the other end of the second spring is connected to the support plate. The bottom plate is used for supporting, the bearing plate is used for placing the paper stack, after placing the paper stack on the bearing plate, the second spring is compressed, the upper end face of the paper stack is flush with the paper receiving roller 9 during paper feeding, the paper is conveyed one by one, the pressure of the paper stack on the second spring is reduced, under the elastic action of the second spring, the upper end face of the paper stack is always flush with the paper receiving roller 9 during height, paper feeding is more stable, and the guide rod can ensure that the bearing plate can move vertically relative to the bottom plate.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a paper feed mechanism which characterized in that: including the platform of form advancing of putting paper platform and setting that is used for stacking the paper buttress put paper platform one side, the top of putting the paper platform is provided with paper feed mechanism, branch paper mechanism and nipper and constructs, the side of putting the paper platform is provided with paper loosening mechanism, paper loosening mechanism's upper end is provided with the fender paper brush, put the paper platform with it is provided with thickness detection mechanism to form between the platform.

2. The paper feeding mechanism according to claim 1, characterized in that: the thickness detection mechanism is an ultrasonic detection element arranged at the front end of the paper feeding platform.

3. The paper feeding mechanism according to claim 1, characterized in that: the paper transfer mechanism comprises a first air cylinder, a second air cylinder, a third air cylinder and a paper transfer suction nozzle, wherein the first air cylinder is vertically arranged, the second air cylinder is horizontally arranged and connected with the first air cylinder, the third air cylinder is obliquely arranged and connected with the second air cylinder, and the paper transfer suction nozzle is connected to the third air cylinder.

4. The paper feeding mechanism according to claim 1, characterized in that: put the paper platform with it connects the paper roll to be provided with between the platform to form advanced, the top that connects the paper roll is provided with the roller of form advancing, the roller setting of form advancing is on removing the slide, it is provided with first spring on the slide to remove, the one end of first spring with remove slide fixed connection, the other end with it is connected to form advanced the roller.

5. The paper feeding mechanism according to claim 4, characterized in that: and a bridge plate is arranged between the paper receiving roller and the paper feeding platform, one end of the bridge plate is connected with the paper receiving roller, and the other end of the bridge plate is connected with the paper feeding platform.

6. The paper feeding mechanism according to claim 1, characterized in that: the paper feeding platform comprises a paper feeding plate, a belt transmission mechanism arranged on the paper feeding plate and a paper guide mechanism arranged above the paper feeding plate.

7. The paper feeding mechanism according to claim 6, characterized in that: the belt transmission mechanism comprises a belt, a driving belt roller and a driven belt roller, the driving belt roller and the driven belt roller are respectively arranged at two ends of the paper feeding plate, a plurality of tension pulleys are arranged between the driving belt roller and the driven belt roller, and the belt is connected to the driving belt roller and the driven belt roller by bypassing the tension pulleys.

8. The paper feeding mechanism according to claim 6, characterized in that: the paper guide mechanism comprises a support, and a front paper pressing wheel, a rear paper pressing wheel, a paper pressing ball and a paper pressing hairbrush wheel which are sequentially arranged along the paper direction, wherein the front paper pressing wheel, the rear paper pressing wheel, the paper pressing ball and the paper pressing hairbrush wheel are all arranged on the support, and a paper pressing sheet is arranged at the lower end of the front paper pressing wheel.

9. The paper feeding mechanism according to claim 1, characterized in that: the tail end of the paper feeding platform is provided with a stop gauge, and the stop gauge comprises a paper stop front gauge and a paper stop side gauge.

10. The paper feeding mechanism according to claim 1, characterized in that: the paper placing platform comprises a bottom plate and a bearing plate arranged above the bottom plate, guide rods are arranged at four corners of the bottom plate, the bearing plate is in sliding fit with the guide rods, a second spring is sleeved on the guide rods, one end of the second spring is connected with the bottom plate, and the other end of the second spring is connected with the bearing plate.