CN212269035U

CN212269035U - Folding device for flexible sheet

Info

Publication number: CN212269035U
Application number: CN202021550475.5U
Authority: CN
Inventors: 梁庆金
Original assignee: Hangtian Technology Guangdong Co ltd
Current assignee: Hangtian Technology Guangdong Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-01-01
Anticipated expiration: 2030-07-30

Abstract

The utility model provides a folding device for flexible sheet relates to flexible sheet processing technology field, roller in first interior roller and the second of cavity design, all be provided with the groove position in first interior roller, the second, the groove position is provided with first air suction duct, first air suction duct runs through to the cavity department of roller in first interior roller or the second, first interior roller, second are wrapped up respectively outward and are had first outer roller, the outer roller of second. The utility model discloses an useful part is, can cut off and folding work to flexible sheet, degree of automation is high, but its core lies in interior roller sustainable constant voltage, the second suction channel or the third suction channel of first outer roller and the outer roller of second are shorter, and the inspiration distance of every second suction channel or third suction channel is equal, does not have the time difference of vacuum conversion, guaranteed that the vacuum negative pressure of every adsorption point on the flexible sheet on roller surface can all realize opening in step or closing.

Description

Folding device for flexible sheet

Technical Field

The utility model belongs to the technical field of flexible sheet processing technique and specifically relates to a folding device for flexible sheet.

Background

Flexible sheets such as leather, chemical fibers, non-woven fabrics, paper, etc. need to be cut and folded during the production process to facilitate finishing and packing for shipment. Especially, in the currently used paper extraction, the edges of the adjacent paper towels and the folding lines of the other paper towel are aligned, folded and clamped in a packaging bag or a paper box, so that the mutual pressing and folding effects are achieved, and when the paper extraction is carried out, the next paper towel can be taken out by the previous paper towel, and the subsequent taking is convenient. However, most of the existing production modes are manual folding of cut flexible sheets, which not only has low speed and affects the overall production efficiency, but also has poor stacking effect.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes shortcoming among the prior art provides a folding device for flexible sheet, can carry out folding work to flexible sheet to only need the miniwatt vacuum pump just can high-efficient work, not only environmental protection but also great energy consumption of having saved, and improved product quality.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model provides a folding device for flexible sheet, includes the first interior roller and the interior roller of second of cavity design, the both ends of roller in first interior roller, the second all are connected with the ventilation head that is used for with external vacuum pump intercommunication, all be provided with the draw-in groove on the roller in first interior roller, the second, the draw-in groove is provided with first air suction pipe, first air suction pipe runs through to the cavity department of first interior roller or second interior roller, first interior roller, second interior roller are wrapped up first outer roller, second outer roller outward respectively, first outer roller, second outer roller rotate respectively and connect on first interior roller, second interior roller, the surface of first outer roller, second outer roller all is provided with fluting and breach annularly, fluting with the breach interval sets up, the fluting is provided with the cutter body, the front end shape of cutter body with the breach shape matches, on the first outer roller, The notches correspond to the notches and the grooves in the second outer roller one by one, second air suction channels are arranged on two sides of each groove, third air suction channels are arranged on two sides of each notch, the second air suction channels and the third air suction channels penetrate through the first outer roller or the second outer roller, cutters are arranged above the first outer roller and the second outer roller, and the cambered surfaces of the cutters are close to the circumferential track of the cutter body.

Preferably, first interior roller or second interior roller are including the inner tube that adopts high strength material to make and the urceolus that adopts solid self-lubricating composite material to make to form, urceolus parcel rigid coupling is in on the inner tube, the groove position is seted up on the urceolus.

Preferably, the outer cylinder is provided with a through hole, the inner cylinder is provided with a bolt hole, the through hole corresponds to the bolt hole in position, and the locking bolt penetrates through the through hole and is screwed into the bolt hole.

Preferably, the groove position is formed with a cut-off opening air passage position and a folded closing air passage position, the end of the cut-off opening air passage position is provided with the folded opening air passage position, and the end of the folded closing air passage position is provided with the cut-off closing air passage position.

Preferably, the folding closed air channel position and the cutting open air channel position are arranged in a strip shape.

Preferably, the both sides of first outer roller and the outer roller of second all are connected with rotatory flange joint, the other bearing that is provided with of rotatory flange joint, the bearing is fixed on the mounting panel.

Preferably, the outer walls of the first inner roller and the second inner roller are smoothly attached to the inner walls of the first outer roller and the second outer roller.

Preferably, the groove position is located at the inner side position of the opposite surfaces of the first inner roller and the second inner roller.

Preferably, the notch is a V notch.

Compared with the prior art, the beneficial effects of the utility model are that:

when the external vacuum pump is started, negative pressure is formed inside the first inner roller and the second inner roller, the suction force is provided, when the flexible sheets on two sides rotate to a position for cutting off an opening air passage along with the first outer roller or the second outer roller, the flexible sheets are adsorbed on the first outer roller or the second outer roller and break under the action of the cutter and the cutter body, then the flexible sheets continuously move between the position for folding the opening air passage and the position for cutting off the closing air passage, the cutter body of the first outer roller or the second outer roller can be pressed into the notch of the second outer roller or the first outer roller, so that the flexible sheets have an indentation, when the flexible sheets continuously move away from the position for folding the closing air passage, the flexible sheets can be folded under the action of gravity, and as the notches on the first outer roller are in one-to-one correspondence with the notches and the slots on the second outer roller, the flexible sheets entering from two sides can be cut off at intervals, Folding work so as to be stacked thereunder; this design can cut off and folding work to flexible sheet, and degree of automation is high, and its core is in the sustainable constant voltage of interior roller, and outer roller second air suction duct is shorter, and the suction distance of every second air suction duct is equal moreover, does not have the time difference of vacuum conversion, has guaranteed that the vacuum negative pressure of every adsorption point on the flexible sheet of absorption roller surface can all realize opening in step or closing. And the high-efficiency work can be realized only by a low-power vacuum pump, so that the environment is protected, the energy consumption is greatly saved, and the product quality is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention, and do not constitute a limitation on the invention, in which:

fig. 1 is an overall view of the folding device of the present invention;

fig. 2 is a schematic view of the working state of the present invention;

fig. 3 is a sectional internal schematic view of the folding device of the present invention;

FIG. 4 is a schematic view of the structure of the first inner roller;

fig. 5 is a schematic diagram of a circle a in fig. 4.

In the figure: 1-a first inner roller, 2-a second inner roller, 3-an air vent head, 5-a groove position, 6-a first air suction channel, 7-a first outer roller, 8-a second outer roller, 9-a notch, 10-a cutter body, 11-a second air suction channel, 12-an inner cylinder, 13-an outer cylinder, 14-a perforation, 15-a bolt hole, 16-a locking bolt, 17-a folding closed air channel position, 18-a cutting open air channel position, 19-a rotary flange joint, 20-a bearing, 21-a mounting plate, 22-a flexible sheet, 23-a folding open air channel position, 24-a cutting closed air channel position, 25-a cutter and 26-a third air suction channel.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 5, a folding device for a flexible sheet comprises a first inner roller 1 and a second inner roller 2 which are hollow, wherein two ends of the first inner roller 1 and the second inner roller 2 are both connected with a ventilation head 3 for communicating with an external vacuum pump, and when the external vacuum pump is started, negative pressure is formed inside the first inner roller 1 and the second inner roller 2, so that suction force is generated; the first inner roller 1 and the second inner roller 2 are respectively provided with a groove position 5, except the groove position 5, the rest parts of the outer walls of the first inner roller 1 and the second inner roller 2 are smoothly attached to the inner walls of the first outer roller 7 and the second outer roller 8, the groove position 5 is provided with a first air suction duct 6, the first air suction duct 6 vertically penetrates through the hollow part of the first inner roller 1 or the second inner roller 2, the first inner roller 1 and the second inner roller 2 are respectively wrapped with a first outer roller 7 and a second outer roller 8, the first outer roller 7 and the second outer roller 8 are respectively and rotatably connected to the first inner roller 1 and the second inner roller 2 through bearings, in the design, the first inner roller 1 or the second inner roller 2 comprises an inner cylinder 12 made of a high-strength material, so that the supporting rigidity is high, and an outer cylinder 13 made of a solid self-lubricating composite material is adopted, so that the first outer roller 7 or the second outer roller 8 can smoothly rotate on the outer cylinder 13, the outer cylinder 13 is wrapped and fixedly connected on the inner cylinder 12, specifically, as can be seen from fig. 3, the outer cylinder 13 is provided with a through hole 14, the inner cylinder 12 is provided with a bolt hole 15, the through hole 14 corresponds to the bolt hole 15, and the locking bolt 16 is further included, and the locking bolt 16 penetrates through the through hole 14 and is screwed into the bolt hole 15, so that the outer cylinder 13 can be fixed on the inner cylinder 12 to form a whole; the groove position 5 is arranged on the outer cylinder 13, the first inner roller 1 and the second inner roller 2 are same in structure and are symmetrically arranged, as can be seen from figures 3 and 4, the groove position 5 is positioned at the inner side of the opposite surface of the first inner roller 1 and the second inner roller 2, the groove position 5 extends upwards to form a cut-off opening air passage position 18 and extends downwards to form a folded closed air passage position 17, as can be seen from figure 5, the folded closed air passage position 17 and the cut-off opening air passage position 18 are arranged in a strip shape and extend along an arc surface, the end part of the cut-off opening air passage position 18 is provided with a folded opening air passage position 23, the end part of the folded closed air passage position 17 is provided with a cut-off closing air passage position 24, the surfaces of the first outer roller 7 and the second outer roller 8 are both annularly provided with a groove and a gap 9, the groove and the gap 9 are arranged at intervals, a cutter body 10 is inserted in the groove, the shape of the front end of the, and the

notches

9 and 9 on the first outer roller 7 correspond to the

notches

9 and 9 on the second outer roller 8 one by one, namely, in the rotating process, the cutter body 10 of the first outer roller 7 or the second outer roller 8 is inserted into the notch 9 of the second outer roller 8 or the first outer roller 7, so that the flexible sheet has creases, and the folding can be realized.

The notch 9 is a V-shaped notch, and the front end of the cutter body 10 is also arranged to be in a sharp-cornered shape, so that the indentation effect is enhanced; the two sides of the groove are provided with second air suction channels 11 and third air suction channels 26, the two sides of the notch 9 are provided with third air suction channels 26, the second air suction channels 11 and the third air suction channels 26 penetrate through the first outer roller 7 or the second outer roller 8, so that when the second air suction channels 11 or the third air suction channels 26 rotate to the groove position 5, the second air suction channels 11 or the third air suction channels 26, the groove position 5 and the first air suction channels 6 are in air communication with the inside of the first inner roller 1 or the second inner roller 2, and the second air suction channels 11 or the third air suction channels 26 have suction force, wherein the air inlet ends of the second air suction channels 11 and the third air suction channels 26 are arranged in a fan-shaped hole design, and the purpose is to increase the suction area.

The two sides of the first outer roller 7 and the second outer roller 8 are both connected with a rotary flange joint 19, the rotary flange joint 19 is beneficial to rotating connection, a bearing 20 is arranged beside the rotary flange joint 19, and the bearing 20 is fixed on a mounting plate 21 through screws.

Compared with the prior art, the utility model discloses only need the miniwatt vacuum pump just can high-efficient work, not only environmental protection but also great energy consumption of having saved, product quality has been ensured to equipment under high-speed running state, has also improved production efficiency simultaneously.

The working principle of the equipment is that after an external vacuum pump is started, negative pressure is formed inside the first inner roller 1 and the second inner roller 2 and has suction force, when the flexible sheets 22 on two sides rotate to the air channel cutting and opening position 18 along with the first outer roller 1 or the second outer roller 2, the flexible sheets 22 are adsorbed on the first outer roller 7 or the second outer roller 8 and are broken under the action of the cutter 25 and the cutter body 10, then the flexible sheets 22 continuously move between the air channel folding and opening position 23 and the air channel cutting and closing position 24, the cutter body 10 of the first outer roller 7 or the second outer roller 8 is pressed into the notch 9 of the second outer roller 8 or the first outer roller 7, so that the flexible sheets 22 have indentation, when the flexible sheets 22 continuously move away from the air channel folding and closing position 17, the flexible sheets 22 are folded under the action of gravity, and the slotting on the first outer roller 7, the notch 9 on the second outer roller 8 and the notch 9 on the first outer roller 8 are formed, The slots correspond one-to-one so that the flexible sheets 22 entering from both sides are cut and folded at intervals to be stacked thereunder.

This design can cut off and folding work to flexible sheet 22, and degree of automation is high, and its core is in the sustainable constant voltage of interior roller, and outer roller second air suction duct 11 is shorter, and every second air suction duct 11's suction distance is equal, does not have the time difference of vacuum conversion, has guaranteed that the vacuum negative pressure of every adsorption point on the flexible sheet 22 of absorption on roller surface can all realize opening or closing in step. And the high-efficiency work can be realized only by a low-power vacuum pump, so that the environment is protected, the energy consumption is greatly saved, and the product quality is improved.

The former structure is that a plurality of first air suction channels 6 penetrating through the whole roller are annularly and uniformly distributed on the end surface of the roller, a plurality of rows of second air suction channels 11 which are arranged from the center of the roller to two sides along the axial direction are distributed on the circumferential surface of the roller, the second air suction channels 11 are communicated with the first air suction channels 6 to form longer adsorption channels, the distance between each air suction channel and the two end surfaces of the roller is unequal, and the opening and closing of the vacuum negative pressure conversion are arranged on the two end surfaces of the roller without precision matching, so the sealing performance is very poor and certain air leakage phenomenon exists, the second air suction channels have longer and unequal time difference no matter being opened or closed, namely the second air suction channels 11 can not realize the synchronous opening or closing of the roller when adsorbing the flexible sheet 22, the defect is that the production efficiency is low, the product is not folded neatly, and a high-power vacuum pump is needed to maintain the negative pressure, high noise, high energy consumption and no environmental protection.

When the cutter body 10 and the notch 9 rotate relatively and synchronously to 180 degrees tangentially, namely, the air channel closing position 24 is cut off, the second air suction channel 11 on the first outer roller 7 is closed, the third air suction channel 26 on the second outer roller 8 is simultaneously positioned at the folding opening air channel 23, the third air suction channel 26 on the second outer roller 8 is opened, the flexible sheet 22 on the first outer roller 7 is adsorbed on the surface of the notch 9 to form a crease when the second air suction channel 11 is in the closed state by the third air suction channel 26 on the second outer roller 8 in the opened state, the flexible sheet 22 is taken down along with the relative rotation of the two rollers, the third air suction channel 26 on the second outer roller 8 is closed when the flexible sheet 22 reaches the folding closing air channel position 17, the negative pressure is zero, the flexible sheet is folded under the action of gravity or a manipulator, and the principle that the second air suction channel 11 on the first outer roller 7 and the third air suction channel 26 on the second outer roller 8 are closed and opened is followed, the first outer roller 7 and the second outer roller 8 repeat the above-described cyclic exchange to form the flexible sheet 22 into the right and left zigzag-hinge type folds.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. A folding device for flexible sheets is characterized by comprising a first inner roller and a second inner roller which are designed in a hollow mode, wherein two ends of the first inner roller and the second inner roller are respectively connected with an air ventilation head used for being communicated with an external vacuum pump, the first inner roller and the second inner roller are respectively provided with a groove position, the groove positions are provided with a first air suction passage, the first air suction passage penetrates through the hollow position of the first inner roller or the second inner roller, the first inner roller and the second inner roller are respectively wrapped with a first outer roller and a second outer roller, the first outer roller and the second outer roller are respectively and rotatably connected onto the first inner roller and the second inner roller, the surfaces of the first outer roller and the second outer roller are respectively provided with a groove and a notch in an annular mode, the groove and the notch are arranged at intervals, the groove is provided with a cutter body, and the shape of the front end of the cutter body is matched with the shape of the notch, the outer roller is characterized in that the grooves and the gaps on the first outer roller correspond to the gaps and the grooves on the second outer roller one by one, the two sides of each groove are provided with second air suction channels, the two sides of each gap are provided with third air suction channels, the second air suction channels and the third air suction channels penetrate through the first outer roller or the second outer roller, cutters are arranged above the first outer roller and the second outer roller, and the cambered surfaces of the cutters are close to the circumferential track of the cutter body.

2. The folding device for the flexible sheet according to claim 1, wherein the first inner roller or the second inner roller comprises an inner cylinder made of a high-strength material and an outer cylinder made of a solid self-lubricating composite material, the outer cylinder is wrapped and fixedly connected to the inner cylinder, and the groove is formed in the outer cylinder.

3. A folding device for flexible sheet material according to claim 2, characterized in that said outer cylinder is provided with a perforation and said inner cylinder is provided with a bolt hole, said perforation corresponding to the position of said bolt hole, and further comprising a locking bolt which penetrates said perforation and is screwed into said bolt hole.

4. A folding device for a flexible sheet according to claim 1, characterized in that the groove position is formed with a cut-off open air passage position and a folded closed air passage position, the end of the cut-off open air passage position is provided with the folded open air passage position, and the end of the folded closed air passage position is provided with the cut-off closed air passage position.

5. A folding device for flexible sheet material according to claim 4, characterized in that said folding closed airway position, said cutting open airway position are provided in the shape of a strip.

6. A folding apparatus for flexible sheet material as claimed in claim 1, wherein a rotary flange joint is connected to each side of the first outer roller and the second outer roller, and a bearing is provided beside the rotary flange joint and fixed on the mounting plate.

7. A folding device for flexible sheet material according to claim 1, characterized in that the outer walls of said first and second inner rollers fit smoothly with the inner walls of said first and second outer rollers.

8. A folding device for flexible sheet material according to claim 1 wherein said groove is located inwardly of facing surfaces of said first and second inner rollers.

9. A folding device for flexible sheets according to claim 1, characterized in that said notch is a V-notch.