CN220866756U - Collecting device for folding machine - Google Patents

Abstract

The utility model relates to the technical field of folding machines, in particular to a collecting device for a folding machine, which comprises a workbench arranged at a discharge hole at the tail part of the folding machine, wherein a clamping mechanism is arranged on the workbench, the clamping mechanism comprises a rotating block arranged on the workbench, the rotating block is positioned at one side of paper to be collected, two grabbing rods which can be inserted into gaps of the paper to be collected are arranged at one side of the rotating block, which is close to the paper, two bidirectional screw rods which are used for driving the two grabbing rods to move towards directions which are close to or far away from each other are arranged in the rotating block, a rotating shaft which is inserted into the rotating block and fixedly connected with the rotating block is arranged on the workbench, the central axis of the rotating shaft is parallel to the conveying direction of the paper to be collected, and one end of the rotating shaft is connected with a motor II. The utility model provides a collecting device for a folding machine, which reduces the possibility of hand injuries of operators.

Description

Collecting device for folding machine

Technical Field

The application relates to the technical field of folding machines, in particular to a collecting device for a folding machine.

Background

The folding machine is modern printing equipment generated along with modern printing industry, is mainly used for folding paper with various sizes and thicknesses in a design range, and is suitable for folding large quantities of fast printing centers, production enterprises, public letter files and business letters.

The collecting device of the folding machine is arranged at the tail part of the folding machine and comprises a workbench with a horizontal upper surface, one end of the workbench is connected with a discharge hole of the folding machine, and a pressing mechanism is arranged at a position, opposite to the discharge hole of the folding machine, on the workbench. During operation, the paper that accomplishes folding in the folder is moved to the workstation upper surface through the discharge gate, and hold-down mechanism can drive the paper on the workstation and remove to the direction that is close to the folder, because the inside folding paper of accomplishing of folder can constantly carry on the workstation, so under hold-down mechanism and folder's effect, the paper after folding is stacked on the workstation in batches, and the direction that the paper was stacked is unanimous with the direction that the paper was carried.

When the folded paper needs to be taken down, an operator needs to insert hands into the paper stack to forcefully lift the paper between the two hands and then place the paper at a specified position, and the inventor finds that the hands are easy to hurt during carrying.

Disclosure of utility model

The application provides a collecting device for a folding machine, which aims to reduce the possibility of hand injuries of operators.

The technical aim of the application is realized by the following technical scheme:

The utility model provides a collection device for folding machine, including setting up the workstation in folding machine tail discharge gate position, be provided with on the workstation and press from both sides and get the mechanism, press from both sides and get the mechanism including setting up the turning block on the workstation, the turning block is located the one side of waiting to collect the paper, one side that the turning block is close to the paper is provided with two grab bars that can insert to waiting to collect in the paper gap, the inside two-way lead screw that is used for driving two grab bars to being close to each other or the direction removal that keeps away from that is provided with of turning block, be provided with on the workstation insert the turning block inside and with turning block fixed connection's axis of rotation, the central axis of rotation is parallel with the direction of delivery of waiting to collect the paper, the one end of axis of rotation is connected with motor two.

Through adopting above-mentioned scheme, during operation, at first, drive clamp and get the mechanism, clamp and get the bidirectional screw in the mechanism and drive the grab bar and move to the direction that is close to each other or keep away from, when two grab bars remove to the distance that is fit for snatching a certain amount of paper, pause the drive and clamp and get the mechanism, manual drive two grab bars insert the gap of stacking the paper that is to be gathered together, afterwards start again and press from both sides and get the mechanism, clamp and get the bidirectional screw in the mechanism and drive the grab bar and remove to the direction that is close to each other for paper between two grab bars closely laminates each other, at this moment, switch on motor two, motor two drives the axis of rotation and makes the turning block that it connects rotate around the central axis of rotation, the turning block can drive the grab bar again and rotate, the paper between two grab bars is got along with it is got to clamp, operating personnel can carry the paper that the clamp to the assigned position, the operation has avoided operating personnel to directly intubate the paper pile with the hand, and the condition that causes the injury.

Preferably, the upper surface of the workbench is provided with a sliding block, the rotating block is arranged on the sliding block, and the workbench is provided with a sliding component for driving the sliding block to reciprocate along the central axis direction of the rotating shaft.

Through adopting above-mentioned scheme, when snatching the paper of assigned position on the table surface, the sliding block can be under the effect of sliding component reciprocating motion on the table surface to drive the turning block and remove, the grab bar of connecting on the turning block alright remove to assigned position, thereby do not need the manual work to remove collection device to assigned position, use manpower sparingly more like this.

Preferably, one side that two grab bars kept away from each other is provided with vertical dialling board respectively, dials the board and is provided with two altogether, and one side that two dialling boards kept away from each other is connected with the extension rod respectively, and the extension rod is provided with two altogether, and the length direction of extension rod is unanimous with the width direction of sliding block, is provided with on the sliding block and drives two and dials the isolation component that the board moved to being close to each other or keep away from the direction.

Through adopting above-mentioned scheme, when grabbing the pole and inserting the gap of waiting to collect the paper, two grab bars keep away from each other the setting of one side dial the board can separate the paper that snatchs between the pole and grab the pole and keep away from each other one side paper to the isolation component drives and dials the board and remove to the direction that keeps away from each other, in the in-process that grab the pole presss from both sides the paper like this, can not cause the grab pole to keep away from each other one side paper because of the deletion of partial paper and slope and even scatter the condition on the workstation.

Preferably, one end of the extension rod away from the shifting plate penetrates through the side surface of the sliding block away from the paper, the isolation assembly comprises a bidirectional motor fixed on the sliding block, the bidirectional motor is located between the two extension rods, two output shafts of the bidirectional motor are connected with rotating screw rods, threads of the two rotating screw rods are opposite, and the two rotating screw rods penetrate through one extension rod respectively and are in threaded fit with the extension rods.

Through adopting above-mentioned scheme, extension rod and isolation component can move on the workstation together with the sliding block, and the bi-directional motor in the isolation component can drive the rotation lead screw and rotate, because the screw thread of two rotation lead screws is opposite, so rotate the lead screw and can drive the extension rod to be close to each other or the direction removal of keeping away from, the extension rod alright drive the plectrum that is connected with it and remove.

Preferably, the workbench is provided with a sliding plate, the sliding block is arranged on the sliding plate, and the workbench is provided with an air cylinder for driving the sliding plate to move towards the direction close to or far away from the paper.

Through adopting above-mentioned scheme, the cylinder can drive the sliding plate and the sliding block on the sliding plate to be close to or keep away from the direction removal of paper, and the sliding block alright drive the turning block and the grabbing rod that is connected on the turning block is to be close to or keep away from the direction removal of paper, just so need not two grabbing rods of manual drive to insert in the gap of waiting to collect paper that stacks together, uses manpower sparingly more.

Preferably, the sliding assembly comprises a T-shaped block arranged on the lower surface of the sliding block and embedded into the upper surface of the sliding plate, and a sliding groove matched with the T-shaped block and used for enabling the T-shaped block to reciprocate along the central axis direction of the rotating shaft is formed in the upper surface of the sliding plate.

Through adopting above-mentioned scheme, T type piece and the sliding block of connecting thereof can be in the spout reciprocal slip, and the sliding block alright drive each part that links to each other with it reciprocal slip on the sliding plate, uses manpower sparingly more when removing the sliding block like this and each part that links to each other.

Preferably, the grabbing rod comprises a contact plate contacted with paper, one side of the two contact plates, which is close to each other, is vertically connected with a connecting rod, the two connecting rods on the two contact plates extend towards the direction of being close to each other, one end of the two connecting rods, which is close to each other, is vertically connected with an auxiliary rod, and one end of the auxiliary rod, which is far away from the connecting rod, is connected with a bidirectional screw rod.

By adopting the scheme, because the length of the bidirectional screw rod is limited, the distance that the auxiliary rod connected to the bidirectional screw rod moves towards the direction of approaching or separating from each other is limited, and because the connecting rod is perpendicular to the contact plate and is perpendicular to the auxiliary rod, the auxiliary rod is parallel to the contact plate, the distance between the two grabbing rods can be flexibly changed by the bidirectional screw rod, and on the basis, the distance between the two grabbing rods is increased by the connecting rod, so that more paper can be clamped by the two grabbing rods.

Preferably, the side surface of the poking plate, which is close to the paper, is pointed, one end of the grabbing rod, which is close to the paper, is also pointed, and the cross sections of the pointed parts of the grabbing rod and the poking plate are right-angled triangles and still have triangle shapes when contacted together.

Through adopting above-mentioned scheme, bi-directional motor drives and dials the board and to being close to the direction removal of grabbing the pole and contact together with grabbing the pole, because dial the board and grab the point portion when the pole contacts together and be triangle-shaped shape, so grab the pole and dial the board and insert more easily and wait to gather in the paper to grab the pole and dial the board and be difficult for causing the damage to the side of paper, in addition, triangle-shaped shape plays the effect of expanding to grabbing the pole and dialling the board and keeping away from the paper of both sides mutually, is favorable to dialling the board and separates paper.

In summary, the application has the following technical effects:

1. the clamping mechanism is arranged, so that the condition of hand injury caused by the process of manually inserting paper is avoided;

2. By arranging the isolation assembly, the rest paper is not easy to skew or even scatter after the paper is clamped, so that the continuity of the collection process is realized, and the labor is saved;

3. Through having set up slip subassembly, need not artifical transport collection device, use manpower sparingly more.

Drawings

FIG. 1 is an overall construction view of a collecting device for a folder in an embodiment of the present application (a square frame in the drawing shows a sheet stacking area);

FIG. 2 is an enlarged partial view of a collecting device for a folder in accordance with an embodiment of the present application;

fig. 3 is a view showing another angle of a collecting device for a folder in accordance with an embodiment of the present application.

In the figure, 1, a sliding block; 11. yielding groove I; 12. a third abdicating groove; 2. a clamping mechanism; 21. a rotating block; 211. a second abdicating groove; 22. a first motor; 23. a bidirectional screw rod; 24. a grab bar; 241. a contact plate; 242. a connecting rod; 243. an auxiliary lever; 25. a rotating assembly; 251. a second motor; 252. a rotating shaft; 3. a sliding assembly; 31. a sliding plate; 311. a chute; 32. a T-shaped block; 4. an isolation assembly; 41. a poking plate; 42. an extension rod; 43. a bi-directional motor; 44. rotating a screw rod; 5. a cylinder; 6. a working table.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the application provides a collecting device for a folder, which is mounted on a workbench 6 with a horizontal upper surface and is positioned at one side of stacked sheets to be collected, wherein the stacking direction of the sheets is consistent with the length direction of the workbench 6, the collecting device comprises a sliding block 1, a clamping mechanism 2, a sliding component 3, a separation component 4 and a driving piece, the sliding block 1 is arranged on the workbench 6, the clamping mechanism 2 is mounted on the sliding block 1 and is used for clamping a certain amount of sheets to the outer side of the stacked sheets to be collected, the sliding component 3 is mounted on the workbench 6 and is used for driving the sliding block 1 to slide back and forth along the length direction of the workbench 6, the separation component 4 is mounted at two sides of the clamping mechanism 2 and enables the sheets clamped by the clamping mechanism 2 to be separated from the non-clamped sheets, and the driving piece is mounted at one side of the sliding component 3 and can enable the sliding component 3 to move towards or away from the direction of the sheets to be collected on the workbench 6.

During the use, slider 1 moves to the position that is fit for snatching the paper under the effect of sliding component 3, and the driving piece drives slider 1 and removes towards the direction of paper, and the slider 1 stops the motion when removing to press from both sides the position that gets mechanism 2 can snatch the paper, and it snatchs to press from both sides mechanism 2 to snatch a certain amount of paper, to not snatch the paper, isolation component 4 makes it separate with the paper that is snatched, later people can take off the paper from pressing from both sides mechanism 2, has avoided the condition that the manual work snatched the paper like this and has reduced the possibility that operating personnel hand is injured.

Referring to fig. 1 and 2, the gripping mechanism 2 includes a rotating block 21, a first motor 22, a bi-directional screw 23, a gripping rod 24 and a rotating assembly 25, wherein a first yielding groove 11 capable of accommodating the rotating block 21 is formed on one side of the sliding block 1 close to the paper to be collected, the first yielding groove 11 penetrates through the upper surface of the sliding block 1, and the rotating block 21 is mounted in the middle of the first yielding groove 11; the rectangle groove two 211 of stepping down has been seted up to the rotating block 21 near one side of waiting to gather paper, the length direction of stepping down groove two 211 is unanimous with the length direction of rotating block 21, two-way lead screw 23 sets up in stepping down groove two 211 insidely and run through the two sides of rotating block 21, two-way lead screw 23 and rotating block 21 rotate and be connected, the one end of two-way lead screw 23 and the output shaft of motor one 22, grab bar 24 is provided with two, two grab bar 24 are close to two ends that two-way lead screw 23's one end is close to two-way lead screw 23 respectively and are set up, two-way lead screw 23 runs through grab bar 24 and with grab bar 24 threaded connection, rotating assembly 25 installs on slider 1 and can drive rotating block 21 at the inside rotation of slider 1.

When the paper stack gripper is used, the motor I22 is started firstly, the motor I22 drives the bidirectional screw rod 23 to rotate, the bidirectional screw rod 23 drives the gripper bars 24 to move towards the direction of approaching or separating from each other, the two gripper bars 24 can clamp a certain amount of paper, the rotating assembly 25 can drive the rotating block 21 and the gripper bars 24 connected with the rotating block 21 to rotate, and the gripper bars 24 can grip the clamped paper from the paper stack.

Referring to fig. 1 and 2, the rotating assembly 25 includes a second motor 251 and a rotating shaft 252, the axial direction of the rotating shaft 252 is identical to the length direction of the bi-directional screw rod 23, the rotating shaft 252 simultaneously passes through the sliding block 1 and the rotating block 21, the rotating shaft 252 is rotationally connected with the sliding block 1 and fixedly connected with the rotating block 21, and one end of the rotating shaft 252 is connected with the second motor 251. When the paper stacking machine is used, the motor II 251 is started, the motor II 251 drives the rotating shaft 252 to rotate, the rotating shaft 252 drives the rotating block 21 and the grabbing rods 24 connected to the rotating block 21 to rotate around the axis of the rotating shaft 252, at the moment, the grabbing rods 24 clamping a certain amount of paper can take out the paper from the paper stacking machine, and an operator can put the taken paper at a specified position.

Referring to fig. 1, the sliding assembly 3 includes a sliding plate 31 and a T-shaped block 32, the upper surface of the sliding plate 31 is horizontal, the length direction of the sliding plate 31 is consistent with the length direction of the workbench 6, a rectangular sliding groove 311 adapted to the T-shaped block 32 is formed in the upper surface of the sliding plate 31, the T-shaped block 32 is arranged inside the sliding groove 311 and can reciprocate inside the sliding groove 311, the upper surface of the T-shaped block 32 is fixedly connected with the bottom surface of the sliding block 1, bolts (not labeled in the drawing) perpendicular to the T-shaped block 32 are arranged on two side surfaces of the sliding plate 31, the axial direction of the bolts is consistent with the length direction of the sliding plate 31, the bolts are in threaded connection with the sliding plate 31, and the bolts extend inside the sliding groove 311 and are in butt joint with the T-shaped block 32.

When the paper at a specified position is required to be grabbed during use, the movable sliding block 1 moves on the sliding plate 31 along the length direction of the workbench 6, when the sliding block 1 moves to a proper position, the rotatable bolt enables the sliding block to be abutted to the T-shaped block 32, the bolt arranged on the sliding plate 31 plays a limiting role on the T-shaped block 32, so that the position of the sliding block 1 on the workbench 6 is fixed, when the sliding block 1 is required to be moved again, only the bolt is required to be reversely rotated to enable the sliding block 1 to be far away from the T-shaped block 32, the sliding assembly 3 is beneficial to saving labor, so that an operator can flexibly adjust the position of the collecting device on the workbench 6, and the collecting device can grab paper at any position.

Referring to fig. 3, the isolation assembly 4 includes two pulling plates 41, an extension rod 42, a bi-directional motor 43 and a rotating screw 44, the pulling plates 41 are provided with two pulling plates 41 and are in vertical states, the two pulling plates 41 are respectively positioned at one side of the two grabbing rods 24 away from each other, the distance between the pulling plates 41 and the surface of the workbench 6 is equal to the distance between the grabbing rods 24 and the surface of the workbench 6, one end of the pulling plate 41 close to paper is pointed, and the section of the pointed part of the pulling plate 41 is a right triangle; the extension rods 42 are arranged in the first abdication groove 11 and penetrate through the sliding block 1, the length direction of the extension rods 42 is consistent with the width direction of the sliding block 1, and the number of the extension rods 42 is two; the side surface of the sliding block 1, which is far away from the paper, is provided with a rectangular yielding groove III 12, and two extension rods 42 penetrate through the yielding groove III 12 and can be mutually close to or far away from each other along the length direction of the yielding groove III 12; one side of the two poking plates 41, which are far away from each other, is fixedly connected with two extension rods 42 respectively; the two rotating screw rods 44 are arranged, the threads of the two rotating screw rods 44 are opposite, the length direction of the two rotating screw rods 44 is consistent with the length direction of the sliding block 1, and the two extension rods 42 respectively penetrate through the two rotating screw rods 44 and are respectively in threaded connection with the two rotating screw rods 44; the bi-directional motor 43 is fixed on the side of the slider 1 away from the paper, and one end of the two rotating screws 44, which are close to each other, is simultaneously connected with the output shaft of the bi-directional motor 43.

When the paper gripping device is used, firstly, the bidirectional motor 43 is started, the rotating screw rods 44 connected with the two sides of the bidirectional motor 43 can be driven to rotate, as the threads of the two rotating screw rods 44 are opposite, the extending rods 42 connected with the rotating screw rods 44 can move towards the directions of approaching or separating from each other, the extending rods 42 drive the two shifting plates 41 to move towards the directions of approaching or separating from each other, when the grabbing rods 24 grab paper, the shifting plates 41 are clung to the grabbing rods 24 and are inserted into a paper pile together, when the grabbing rods 24 clamp paper, the two shifting plates 41 are driven to move towards the directions of separating from each other by changing the steering direction of the bidirectional motor 43, and the shifting plates 41 drive the paper on the side of the grabbing rods 24 away from each other to move towards the directions of separating from the grabbing rods 24, so that the paper on the side of the grabbing rods 24 away from each other is separated from the paper on the side of grabbing rods 24, and the shifting plates 41 limit the positions of the paper on the side of the grabbing rods 24 away from each other, so that the paper on the side of the grabbing rods 24 is not easy to incline or even scatter.

Referring to fig. 3, the driving member includes a cylinder 5, one end of a piston rod of the cylinder 5 far away from the cylinder 5 is fixedly connected with one side of a sliding plate 31 far away from the paper to be collected, the cylinder 5 is started, the piston rod of the cylinder 5 can drive the sliding plate 31 to reciprocate along the telescopic direction of the piston rod, a sliding block 1 installed on the sliding plate 31 can move along the direction close to the paper to be collected, a shifting plate 41 and a grabbing rod 24 connected to the sliding block 1 can also move along the direction close to the paper to be collected, the grabbing rod 24 and the shifting plate 41 can be inserted into a paper pile together, the grabbing rod 24 clamps the paper, the shifting plate 41 separates the paper, after the grabbing rod 24 clamps the paper, the two shifting plates 41 drive the residual paper to move along the direction close to each other, when the grabbing rod 24 clamps the paper, the two shifting plates 41 drive the shifting plate 41 to move along the direction close to each other, when the paper on one side of the two shifting plates 41 moves together, the cylinder 5 drives the shifting plate 41 to separate from the paper pile, the paper on the workbench 6 is stacked together again, and the paper on the workbench 6 becomes a new paper pile, the collection device can be repeatedly stacked, and the collection efficiency can be increased.

Referring to fig. 1 and 2, the grabbing rod 24 includes a contact plate 241, a connecting rod 242 and an auxiliary rod 243, the contact plate 241 is vertical and parallel to the pulling plate 41, one end of the contact plate 241 close to the paper is pointed, the cross section of the pointed part of the contact plate 241 is right triangle and still is triangular when contacting the pulling plate 41, one side of the two contact plates 241 close to each other is vertically connected with the connecting rod 242, the connecting rod 242 is far away from the pointed part of the contact plate 241, the two connecting rods 242 on the two contact plates 241 extend towards the direction of approaching each other, one end of the two connecting rods 242 close to each other is vertically connected with the auxiliary rod 243, and one end of the auxiliary rod 243 far away from the connecting rod 242 is in threaded connection with the bidirectional screw 23. When the grabbing rod 24 and the pulling plate 41 can be inserted into the paper pile together, the contact plate 241 is tightly attached to the side surface of the pulling plate 41, which is close to each other, at this time, the cross section of the pointed part of the contact plate 241 and the pulling plate 41 is triangular, so that the contact plate 241 and the pulling plate 41 can be conveniently inserted, and the triangular effect of gradually separating the pulling plate 41 and the paper on two sides of the grabbing rod 24 is achieved.

The principle of the application is that a pressing mechanism on a workbench 6 drives paper conveyed by a discharge hole of the folding machine to move towards the direction approaching the folding machine, the folded paper is stacked on the workbench 6 in batches under the action of the pressing mechanism and the folding machine, the stacking direction of the paper is consistent with the conveying direction of the paper, a collecting device is arranged on one side of the paper stack, the length direction of the collecting device is consistent with the stacking direction of the paper, firstly, a cylinder 5 is started to drive a sliding plate 31 to move towards the direction approaching the paper stack, meanwhile, a bidirectional motor 43 is started to drive a shifting plate 41 to move towards a grabbing rod 24 until the sides of the shifting plate 41 and a contact plate 241, which are mutually approaching, are closely attached together, and the pointed part is triangular, at the moment, the shifting plate 41 and the contact plate 241 are inserted into the paper stack together, then a motor 22 is started to drive the grabbing rod 24 to move towards the direction approaching each other, after the paper between the contact plates 241 is clamped, the turning direction of the bidirectional motor 43 is changed to drive the shifting plates 41 to move in the direction away from each other, the paper on one side away from each other by the shifting plates 41 also moves along with the shifting plates, the second motor 251 is started to drive the grabbing rod 24 to rotate around the central axis of the bidirectional screw 23, the grabbing rod 24 takes the clamped paper upwards from the paper pile, an operator carries the clamped paper to a designated position, finally, the turning direction of the bidirectional motor 43 is changed to drive the shifting plates 41 to move in the direction close to each other, the paper on one side away from each other by the shifting plates 41 also moves along with the shifting plates 41 until the paper on one side away from each other by the shifting plates 41 moves together, the cylinder 5 is started again to drive the shifting plates 41 to move away from the paper pile, and thus the paper on the workbench 6 is stacked together to form a new paper pile, and the collecting device can continuously collect the paper repeatedly.

The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims (8)

1. The utility model provides a collection device for folding machine, includes workstation (6) of setting in folding machine tail discharge gate position, its characterized in that: be provided with on workstation (6) and press from both sides and get mechanism (2), press from both sides and get mechanism (2) including setting up rotating block (21) on workstation (6), rotating block (21) are located the one side of waiting to collect paper, one side that rotating block (21) is close to the paper is provided with two grab bars (24) that can insert to waiting to collect in the paper gap, rotating block (21) inside is provided with and is used for driving two grab bars (24) to be close to each other or the direction of keeping away from two-way lead screw (23), be provided with on workstation (6) insert rotating block (21) inside and with rotating block (21) fixed connection's axis of rotation (252), the central axis of rotation (252) is parallel with the direction of delivery of waiting to collect paper, one end of axis of rotation (252) is connected with motor two (251).

2. The collecting device for a folder as recited in claim 1, wherein: the upper surface of the workbench (6) is provided with a sliding block (1), a rotating block (21) is arranged on the sliding block (1), and the workbench (6) is provided with a sliding component (3) which drives the sliding block (1) to reciprocate along the central axis direction of the rotating shaft (252).

3. A collecting device for a folder as recited in claim 2, wherein: two snatch one side that pole (24) kept away from each other are provided with vertical dialling board (41) respectively, and dialling board (41) are provided with two altogether, and one side that two dialling boards (41) kept away from each other is connected with extension rod (42) respectively, and extension rod (42) are provided with two altogether, and the length direction of extension rod (42) is unanimous with the width direction of sliding block (1), is provided with on sliding block (1) and drives two and dials board (41) to be close to each other or keep away from isolation component (4) that the direction removed.

4. A collecting device for a folder as recited in claim 3, wherein: one end that the extension rod (42) kept away from the shifting board (41) runs through the side that the sliding block (1) kept away from the paper, and isolation component (4) are including fixing bi-directional motor (43) on sliding block (1), and bi-directional motor (43) are located between two extension rods (42), and two output shafts of bi-directional motor (43) all are connected with rotation lead screw (44), and the screw thread of two rotation lead screws (44) is opposite, and two rotation lead screws (44) run through an extension rod (42) respectively and with extension rod (42) screw-thread fit.

5. The collecting device for a folder as recited in claim 4, wherein: the workbench (6) is provided with a sliding plate (31), the sliding block (1) is arranged on the sliding plate (31), and the workbench (6) is provided with an air cylinder (5) which drives the sliding plate (31) to move towards the direction close to or far away from the paper.

6. The collecting device for a folder as recited in claim 5, wherein: the sliding assembly (3) comprises a T-shaped block (32) which is arranged on the lower surface of the sliding block (1) and embedded into the upper surface of the sliding plate (31), and a sliding groove (311) which is matched with the T-shaped block (32) and is used for enabling the T-shaped block (32) to reciprocate along the central axis direction of the rotating shaft (252) is formed in the upper surface of the sliding plate (31).

7. The collecting device for a folder as recited in claim 1, wherein: the grabbing rod (24) comprises contact plates (241) which are in contact with paper, connecting rods (242) are vertically connected to one sides, close to each other, of the two contact plates (241), the two connecting rods (242) on the two contact plates (241) extend towards the direction, auxiliary rods (243) are vertically connected to one ends, close to each other, of the two connecting rods (242), and one ends, far away from the connecting rods (242), of the auxiliary rods (243) are connected with the bidirectional screw rod (23).

8. A collecting device for a folder as recited in claim 3, wherein: the side surface of the poking plate (41) close to the paper is pointed, one end of the grabbing rod (24) close to the paper is pointed, and the cross sections of the pointed parts of the grabbing rod (24) and the poking plate (41) are right-angled triangles and still have triangle shapes when contacted together.