WO2016065924A1

WO2016065924A1 - Sheet material flattening device

Info

Publication number: WO2016065924A1
Application number: PCT/CN2015/083524
Authority: WO
Inventors: 罗攀峰; 谭栋; 吴红军; 孙志强
Original assignee: 广州广电运通金融电子股份有限公司
Priority date: 2014-10-29
Filing date: 2015-07-08
Publication date: 2016-05-06
Also published as: CN104444519A; CN104444519B

Abstract

Disclosed is a sheet material flattening device, comprising a first guide roller (1), a second guide roller (2), a left side plate (3), a right side plate (4) and a driving mechanism (5), wherein the first guide roller (1) and the second guide roller (2) are installed in parallel between the left side plate (3) and the right side plate (4); the first guide roller (1) has left-hand threads (6) on the left side of the roller body, and right-hand threads (7) on the right side, the left-hand threads (6) and the right-hand threads (7) being bilaterally symmetrical relative to the circular section at the center of the first guide roller (1); the radius of the circular section of the first guide roller (1) is equal to that of the second guide roller (2); the first guide roller (1) and the second guide roller (2) are installed close to each other; and the driving mechanism (5) is used for driving the first guide roller (1) and the second guide roller (2) to rotate synchronously, the direction of rotation of the first guide roller (1) being opposite to that of the second guide roller (2). The device is used to flatten a clamped sheet material and deliver same forward, and has a high working efficiency.

Description

Sheet flattening device

The present application claims priority to Chinese Patent Application No. 201410597773.2, filed on Oct. 29, 2014, the entire disclosure of which is incorporated herein by reference. .

Technical field

The invention relates to the field of machinery, and in particular to a sheet flattening device.

Background technique

In equipment for processing sheets, such as ATM machines, printers, fax machines, etc., often encounter some folded, curled, pleated sheets, such as banknotes, paper, etc., these uneven sheets are easy to cause equipment after entering the equipment. The failure, the occurrence of downtime, and the fact that the parts are stuck, greatly reduces the utilization rate of the equipment.

At present, it is common to manually process uneven sheets and then put them into the transport mechanism of the corresponding equipment to feed the sheets into the equipment. However, manual processing is inefficient and prone to omissions.

Summary of the invention

The embodiment of the invention provides a sheet flattening device, which can flatten and convey the clamped sheet, has high work efficiency, and greatly improves the utilization rate of the device.

A sheet flattening device provided by an embodiment of the invention includes:

a first guide roller, a second guide roller, a left side plate, a right side plate, and a driving mechanism;

The first guide roller and the second guide roller are installed in parallel between the left side plate and the right side plate;

a left-hand thread is disposed on a left side of the roller body of the first guide roller, and a right-hand thread is disposed on a right side, and the left-hand thread and the right-hand thread are bilaterally symmetric with respect to a central circular cross section of the roller body of the first guide roller;

a right-handed thread is disposed on the left side of the roller body of the second guide roller, and a left-handed thread is disposed on the right side, and the left-hand thread and the right-hand thread are bilaterally symmetric with respect to a central circular cross section of the roller body of the second guide roller;

The first guide roller and the second guide roller have the same circular section radius;

The first guide roller and the second guide roller are in close proximity to each other;

The driving mechanism is configured to drive the first guiding roller and the second guiding roller to rotate synchronously, and the first guiding roller and the second guiding roller rotate in opposite directions.

Optionally,

There are a plurality of sets of the first guide roller and the second guide roller.

Optionally,

The thread of the left-handed thread and the right-handed thread coincide with the angle in the horizontal direction.

Optionally,

The first guide roller and the second guide roller have the same helical pitch.

Optionally,

The first guide roller and the second guide roller have the same thread width, and the threaded teeth of the two are facing each other.

Optionally,

The threaded teeth and the thread grooves of the first guide roller and the second guide roller are fitted to each other.

Optionally,

The thread teeth and the thread grooves are close to each other.

Optionally, the driving mechanism specifically includes: an electric motor and a transmission mechanism;

The transmission mechanism includes a plurality of synchronizing gear combinations and a transmission gear set;

a plurality of gears on the synchronizing gear set are bitten with each other and respectively connected to the first guide roller and the second guide roller of the same group;

The transmission gear set is configured to be driven to the synchronous gear set by the motor.

Optionally,

The distance between the roller bodies of the first guide roller and the second guide roller is adjustable.

Optionally,

The left-handed thread and the right-handed thread are a rectangular spiral, a trapezoidal spiral, a circular spiral, a rounded trapezoidal spiral, a triangular spiral, a chamfered spiral or a chamfered trapezoidal spiral.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

A sheet flattening device according to an embodiment of the present invention includes: a first guide roller, a second guide roller, a left side plate, a right side plate, and a driving mechanism; the first guide roller and the second guide roller are mounted in parallel Between the left side plate and the right side plate; the left side of the roll body of the first guide roller is provided with a left-hand thread, and the right side is provided with a right-hand thread, and the left-hand thread and the right-hand thread are related to the first guide Roller center of the roll The circular cross section is bilaterally symmetrical; the left side of the roll body of the second guide roller is provided with a right-handed thread, and the right side of the roll body is provided with a left-handed thread, and the left-handed thread and the right-handed thread are related to the center circular section of the roll body of the second guide roll Symmetrical; the first guide roller and the second guide roller have the same circular cross-section radius; the first guide roller and the second guide roller are closely mounted; the drive mechanism is configured to drive the first guide roller and the second The guide rollers rotate synchronously, and the first guide roller and the second guide roller rotate in opposite directions. In the embodiment of the present invention, the first guide roller and the second guide roller are synchronously rotated by the driving mechanism, and the clamping sheet conveys forward, because the threads of the first guide roller and the second guide roller are bilaterally symmetric and opposite in direction. The upper and lower surfaces of the sheet are produced with lifting force along both ends of the shaft, thereby flattening the folded, curled, and pleated sheets by the lifting force, and simultaneously conveying the clamped sheets, and the working efficiency is high. Increased device usage.

DRAWINGS

1 is a schematic structural view of an embodiment of a sheet flattening device according to an embodiment of the present invention;

2 is a schematic structural view of an embodiment of a first guide roller of a sheet flattening device;

Figure 3 is a schematic structural view of an embodiment of a second guide roller of a sheet flattening device;

Figure 4 is a schematic view showing an assembly structure of the first guide roller and the second guide roller;

Figure 5 is a schematic view showing another assembly structure of the first guide roller and the second guide roller;

Figure 6 is a schematic structural view of another embodiment of a second guide roller of a sheet flattening device;

Figure 7 is a partially enlarged assembled view of Figure 5;

Figure 8 is a schematic view showing the force direction and distribution of the sheet passing through a set of first guide rollers and second guide rollers;

Figure 9 is a perspective view of the three-dimensional structure of Figure 1;

Figure 10 is a schematic structural view of a trapezoidal spiral;

Figure 11 is a schematic view showing the structure of a circular spiral;

Figure 12 is a schematic structural view of a rounded trapezoidal spiral;

Figure 13 is a schematic view showing the structure of a triangular helix.

detailed description

The embodiment of the invention provides a sheet flattening device for flattening and feeding the clamped sheet, which has high work efficiency and greatly improves the utilization rate of the device.

In order to make the object, the features and the advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the description, it is apparent that the embodiments described below are only a part of the embodiments of the invention, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1, an embodiment of a sheet flattening device according to an embodiment of the present invention includes:

First guide roller 1, second guide roller 2, left side plate 3, right side plate 4 and drive mechanism 5;

As shown in FIG. 1, the first guide roller 1 and the second guide roller 2 are installed in parallel between the left side plate 3 and the right side plate 4; the circular cross-section radius of the first guide roller 1 and the second guide roller 2 The first guide roller 1 and the second guide roller 2 are mounted in close proximity; the driving mechanism 5 is configured to drive the first guide roller 1 and the second guide roller 2 to rotate synchronously, the first guide roller 1 and the second guide The direction of rotation of the roller 2 is reversed.

As shown in FIG. 2, the left side of the roller body of the first guide roller 1 is provided with a left-hand thread 6 and the right side is provided with a right-hand thread 7, and the left-hand thread 6 and the right-hand thread 7 are related to the roller body of the first guide roller 1. The center circular section is bilaterally symmetrical. It can be understood that the center circular section of the roll body refers to the middle (center) cross section of the length of the roll body, and since the roll body is a cylinder, it is a circular cross section.

As shown in FIG. 3, the second guide roller 2 is provided with a right-hand thread 7 on the left side and a left-hand thread 6 on the right side. The left-hand thread 6 and the right-hand thread 7 are related to the roller body of the second guide roller 2. The center circular section is bilaterally symmetrical.

It should be noted that the angle between the thread of the left-hand thread 6 and the right-hand thread 7 and the horizontal direction may be the same, and the spiral pitch of the first guide roller 1 and the second guide roller 2 are the same, so that the first guide roller 1 When the second guide roller 2 is rotated in synchronization, the left-hand thread 6 and the right-hand thread 7 on the same can be engaged with each other without a thread misalignment. Moreover, the distance between the roller bodies of the first guide roller 1 and the second guide roller 2 is adjustable, so that the sheet flattening device can be applied to the sheets 8 of different thicknesses. The left-handed thread 6 and the right-handed thread 7 may be a rectangular spiral, a trapezoidal spiral, a circular spiral, a rounded trapezoidal spiral, a triangular spiral, a chamfered spiral or a chamfered trapezoidal spiral, which is not limited herein. 10 to 13 are schematic diagrams of a trapezoidal spiral, a circular spiral, a rounded trapezoidal spiral, and a triangular spiral. In addition, a chamfered spiral with a chamfered or chamfered spiral is not provided here, but it is a trapezoidal spiral with a rounded corner. Similar, no longer repeat them.

It should be noted that the left-hand thread 6 or the right-hand thread 7 on the first guide roller 1 and the second guide roller 2 may not require the roller body to be covered with the guide roller. Preferably, whether it is the left-handed thread 6 or the right-handed thread 7, it is discontinuous on the roller body and can be arranged in sections as long as the first guide roller 1 and the second guide roller 2 are The left-hand thread 6 or the right-hand thread 7 may be provided in cooperation. Thus, by setting the left-handed thread 6 or the right-handed thread 7 in sections, the area of action on the sheet can be reduced, and excessive indentation on the surface of the sheet can be avoided, which is advantageous for ensuring the integrity of the sheet.

It should be noted that there may be a plurality of sets of the first guide roller 1 and the second guide roller 2. By providing a plurality of sets of the first guide roller 1 and the second guide roller 2 between the left side panel 3 and the right side panel 4, the smoothing effect of the sheet flattening device can be enhanced, and the sheet 8 can be conveyed more smoothly. smooth.

4 and FIG. 5 are two different assembling manners of the first guide roller 1 and the second guide roller 2. As shown in FIG. 4, the first guide roller 1 and the second guide roller 2 have the same thread width, both of which are The threaded teeth are mounted facing each other, and when the first guide roller 1 and the second guide roller 2 are rotated, the tooth-tooth is positively pressed, thereby generating lift force on the sheet 8 thereon for smoothing. In another assembly manner, as shown in FIG. 5, the threaded teeth and the thread grooves of the first guide roller 1 and the second guide roller 2 are matched with each other, and the thread groove of the first guide roller 1 and the second guide roller 2 are The threaded teeth are paired, and the thread teeth of the first guide roller 1 are paired with the thread grooves of the second guide roller 2, similarly to each other, wherein FIG. 6 is a schematic structural view of the second guide roller 2 in the assembled manner. It should be noted that there should be sufficient clearance between the groove and the tooth. As shown in FIG. 7, the thread tooth and the thread groove are close to each other, so that the thread of the first guide roller 1 and the thread of the second guide roller 2 The teeth will form a slight overlap, and when the sheet 8 passes through the gap, a wave-like deformation will be formed which enhances the amount of lift in the axial direction, thereby enhancing the smoothing effect, while the sheet 8 is slightly deformed in the sheet. 8 can recover itself within the rigid range of its own.

The working principle of the sheet flattening device in this embodiment will be analyzed below:

P in Figs. 2, 3, and 6 is a spiral pitch, R is the radius of the guide roller, and Fig. 9 is the direction and distribution of the force when the sheet 8 passes through a set of the first guide roller 1 and the second guide roller 2, wherein F1 is the left side of the force, and F2 is the right side of the force.

The sheet flattening device utilizes the first guide roller 1 and the second guide roller 2 to generate a certain lift force in the axial direction during the rotation, and the left and right symmetrical and oppositely directed guide rollers will generate a pair of opposite directions. Lifting force, the curled, pleated sheet 8 is flattened by the lift; while the circumferential movement of the rotation is used, the sheet 8 is rubbed against the guide roller to roll the sheet 8 forward for transport. Therefore, you can get:

In general, the parametric equation for a spiral is:

Spiral angle

According to this equation, in order to ensure the balance of the force of the sheet 8 on the left and right sides of the first guide roller 1, Then F1=F2, θ1=θ2, from which it can be inferred that θ is the same size and opposite directions, and R is equal on the same roller axis, so that P1=P2. The first guide roller 1 and the spiral of the second guide roller 2 operate synchronously, because the first guide roller 1 and the second guide roller 2 rotate in opposite directions, y1+y2=0, z1=z2, which can be synchronized, so It is found that P1=P3, R1=R2, and the spiral angle of inclination θ is opposite. It can be concluded that the first guide roller 1 is centrally symmetrical, both sides are spiral, the spiral direction is opposite, and the pitch is the same; the second guide roller 2 is similar to the first guide roller 1, both sides are spiral, and the spiral direction is opposite The pitch is the same, except that the spiral directions of the first guide roller 1 and the second guide roller 2 are opposite. Therefore, when the sheet 8 passes the guide roller, the sheet 8 rubs against the surface of the guide roller, and the pressure between the first guide roller 1 and the second guide roller 2 is pressed, and the spiral is rotated to form a surface on the sheet 8 The force distribution map shown. The F1, F2 generated by the spiral friction spreads the sheet 8 to the both sides along the center of the shaft, thereby achieving the smoothing of the curled, pleated sheet 8, and making the sheet 8 flatter.

As shown in Figure 9, the driving mechanism 5 in this embodiment specifically includes: an electric motor 51 and a transmission mechanism 52;

The transmission mechanism includes a plurality of synchronizing gear sets 53 and a transmission gear set 54;

a plurality of gears on the synchronizing gear set 53 are bitten to each other and connected to the first guide roller 1 and the second guide roller 2 of the same group;

The transmission gear set 54 is used to drive the synchronizing gear set 53 under the driving of the electric motor.

In the present embodiment, the first guide roller 1 and the second guide roller 2 are synchronously rotated by the driving mechanism 5, and the holding sheet 8 is conveyed forward, due to the threads of the first guide roller 1 and the second guide roller 2 Symmetrical and oppositely directed, the upper and lower surfaces of the sheet 8 produce lifts that are spread along the ends of the shaft, thereby flattening the folded, curled, pleated sheet 8 with the lift and simultaneously slid the sheet 8 Pre-transport, high work efficiency, greatly improving the utilization rate of equipment.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or replacements do not make the corresponding technologies The essence of the technical solution lies in the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A sheet flattening device, comprising:

a first guide roller, a second guide roller, a left side plate, a right side plate, and a driving mechanism;

The first guide roller and the second guide roller are installed in parallel between the left side plate and the right side plate;

a left-hand thread is disposed on a left side of the roller body of the first guide roller, and a right-hand thread is disposed on a right side, and the left-hand thread and the right-hand thread are bilaterally symmetric with respect to a central circular cross section of the roller body of the first guide roller;

a right-handed thread is disposed on the left side of the roller body of the second guide roller, and a left-handed thread is disposed on the right side, and the left-hand thread and the right-hand thread are bilaterally symmetric with respect to a central circular cross section of the roller body of the second guide roller;

The first guide roller and the second guide roller have the same circular section radius;

The first guide roller and the second guide roller are in close proximity to each other;

The driving mechanism is configured to drive the first guiding roller and the second guiding roller to rotate synchronously, and the first guiding roller and the second guiding roller rotate in opposite directions.
The sheet flattening device according to claim 1, wherein

There are a plurality of sets of the first guide roller and the second guide roller.
The sheet flattening device according to claim 1, wherein

The thread of the left-handed thread and the right-handed thread coincide with the angle in the horizontal direction.
The sheet flattening device according to claim 1, wherein

The first guide roller and the second guide roller have the same helical pitch.
The sheet flattening device according to claim 1, wherein

The first guide roller and the second guide roller have the same thread width, and the threaded teeth of the two are facing each other.
The sheet flattening device according to claim 1, wherein

The threaded teeth and the thread grooves of the first guide roller and the second guide roller are fitted to each other.
A sheet flattening device according to claim 6, wherein

The thread teeth and the thread grooves are close to each other.
The sheet flattening device according to claim 1, wherein the driving mechanism specifically comprises: an electric motor and a transmission mechanism;

The transmission mechanism includes a plurality of synchronizing gear combinations and a transmission gear set;

a plurality of gears on the synchronizing gear set are bitten with each other and respectively connected to the first guide roller and the second guide roller of the same group;

The transmission gear set is configured to be driven to the synchronous gear set by the motor.
The sheet flattening device according to claim 1, wherein

The distance between the roller bodies of the first guide roller and the second guide roller is adjustable.
A sheet flattening device according to any one of claims 1 to 9, wherein

The left-handed thread and the right-handed thread are a rectangular spiral, a trapezoidal spiral, a circular spiral, a rounded trapezoidal spiral, a triangular spiral, a chamfered spiral or a chamfered trapezoidal spiral.