阅读说明：本技术 定位通气转辊、半吸风式翻面机构及印刷装置 (Positioning ventilation roller, half-suction type turn-over mechanism and printing device ) 是由 郭剑慧 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种定位通气转辊、半吸风式翻面机构及印刷装置,定位通气转辊包括限流板和转辊本体,所述转辊本体沿左右方向水平设置,且其两端分别同轴凸设有与其固定连接的转轴,所述限流板转动安装在任意一根所述转轴上,并与所述转辊本体的靠近其的一端端部贴合；所述转辊本体靠近所述限流板一端的端部沿周向间隔均匀的凹设有多个沿其轴向设置的气流通道,每个所述气流通道的孔壁上沿其长度方向间隔设有多个贯穿所述转辊本体辊面的气孔；所述限流板上对应多个所述气流通道转动的轨迹处设有一个贯穿其的通孔,且所述转辊本体与所述限流板相对转动时,至少有一个所述气流通道与所述通孔连通,其结构简单。(The invention discloses a positioning ventilation rotating roller, a half air suction type turnover mechanism and a printing device, wherein the positioning ventilation rotating roller comprises a flow limiting plate and a rotating roller body, the rotating roller body is horizontally arranged along the left-right direction, rotating shafts fixedly connected with the rotating roller body are coaxially and convexly arranged at two ends of the rotating roller body respectively, and the flow limiting plate is rotatably arranged on any one rotating shaft and is attached to one end part of the rotating roller body, which is close to the rotating roller body; a plurality of airflow channels which are axially arranged are uniformly and concavely arranged at intervals along the circumferential direction at the end part of the roller body close to one end of the flow limiting plate, and a plurality of air holes which penetrate through the roller surface of the roller body are arranged at intervals along the length direction of the hole wall of each airflow channel; the flow limiting plate is provided with a through hole penetrating through the flow limiting plate corresponding to the rotating tracks of the plurality of air flow channels, and at least one air flow channel is communicated with the through hole when the roller body and the flow limiting plate rotate relatively.)

1. The positioning ventilation roller is characterized by comprising a flow limiting plate (11) and a roller body (12), wherein the roller body (12) is horizontally arranged along the left-right direction, two ends of the roller body are respectively coaxially and convexly provided with a rotating shaft (13) fixedly connected with the roller body, and the flow limiting plate (11) is rotatably arranged on any one rotating shaft (13) and is attached to one end part, close to the rotating shaft, of the roller body (12);

a plurality of air flow channels (121) which are axially arranged along the axial direction are uniformly and concavely arranged at the end part of the rotary roller body (12) close to one end of the flow limiting plate (11) at intervals along the circumferential direction, the air flow channels (121) all extend to the other end of the rotary roller body (12), a plurality of air holes (122) which penetrate through the roller surface of the rotary roller body (12) are arranged on the hole wall of each air flow channel (121) at intervals along the length direction, one end, close to the roller surface of the rotary roller body (12), of each air hole (122) corresponding to each air flow channel (121) is axially distributed along the rotary roller body (12), and one end, corresponding to the roller surface of the rotary roller body (12), of each air hole (122) is close to the corresponding air flow channel (121);

a through hole (111) penetrating through the restrictor plate (11) is formed in the position, corresponding to the rotating track of the airflow channels (121), of the restrictor plate, when the roller body (12) and the restrictor plate (11) rotate relatively, at least one airflow channel (121) is communicated with the through hole (111), and airflow is introduced into or sucked away from one end, far away from the roller body (12), of the through hole (111).

2. The positioning ventilation roller as claimed in claim 1, characterized in that the through holes (111) are arc-shaped strip holes, the arc centers of the through holes are positioned on the axis of the roller body (12), the arc center angles of the through holes are 30-60 degrees, and 12-24 air flow channels (121) are arranged.

3. A positioning ventilated roller according to claim 1 or 2, characterized in that each air hole (122) is a straight hole and is arranged in a radial direction of the roller body (12).

4. A half-suction type turn-over mechanism is characterized by comprising a conveying belt (2), a driving piece (3), a cover plate (4), two supporting plates (5), two first rotating rollers (6) and two positioning ventilating rotating rollers (1) according to any one of claims 1 to 3, wherein the two supporting plates (5) are vertically arranged along the front-back direction and are distributed at intervals along the left-right direction, the conveying belt (2) and the cover plate (4) are positioned between the two supporting plates (5), the cover plate (4) is a C-shaped plate with a backward opening, two sides of the cover plate respectively extend to be fixedly connected with the two supporting plates (5), the two positioning ventilating rotating rollers (1) and the two first rotating rollers (6) are horizontally arranged along the left-right direction and are distributed at intervals along the up-down direction respectively and are positioned in a ring of the conveying belt (2), and the two positioning ventilating rollers (1) are positioned in the cover plate (4), the two first rotating rollers (6) are positioned behind the two positioning ventilation rotating rollers (1) and jointly prop open the conveying belt (2), a gap forming a paper feeding channel is formed between the cover plate (4) and the conveying belt (2), a rotating shaft (13) at two ends of each positioning ventilation rotating roller (1) and two ends of each first rotating roller (6) are respectively and rotatably connected with the two supporting plates (5), the conveying belt (2) is fully distributed with suction holes, two sides of each conveying belt extend to be close to the two supporting plates (5), each flow limiting plate (11) is fixedly connected with the supporting plate (5) at one side close to the flow limiting plate, through holes (111) of each flow limiting plate are positioned at positions corresponding to the positions where the rotating roller bodies (12) are contacted with the conveying belt (2), and one end, far away from the corresponding rotating roller body (12), of each through hole (111) is used for being communicated with an air inlet of negative pressure equipment, the driving piece (3) is arranged on any one of the supporting plates (5) and is used for driving the two first rotating rollers (6), the two positioning ventilation rotating rollers (1) and the conveying belt (2) to rotate.

5. The half air suction type turnover mechanism according to claim 4, characterized by further comprising a second rotating roller (7), wherein the second rotating roller (7) is horizontally arranged between the two support plates (5) along the left-right direction, is positioned in the middle between the two positioning ventilating rotating rollers (1) and the two first rotating rollers (6), and is positioned outside the ring of the conveying belt (2), two ends of the second rotating roller (7) respectively extend to and are rotatably connected with the two support plates (5), and the second rotating roller (7), the two positioning ventilating rotating rollers (1) and the two first rotating rollers (6) jointly prop open the conveying belt (2).

6. Half-suction turnover mechanism according to claim 4, characterized in that the upper end of the upper roller body (12) and the upper end of the upper first roller (6) are in the same horizontal plane, and the lower end of the lower roller body (12) and the lower end of the lower first roller (6) are in the same horizontal plane.

7. The half-suction type turn-over mechanism according to claim 4, wherein two of the flow restriction plates (11) are located on the same side, and are attached to the corresponding support plates (5) and fixedly connected to each other, and an interface for communicating with an air inlet of a negative pressure device is respectively arranged on the corresponding support plates (5) at the positions of the two through holes (111).

8. The half-suction type turn-over mechanism according to claim 4, further comprising three air suction plates (8) arranged between the two support plates (5) in the left-right direction and positioned in the ring of the conveying belt (2), wherein the air suction plates (8) are hollow inside and are provided with holes on one side surface thereof communicated with the inside thereof, the air suction plates (8) are provided with air pipe connectors communicated with the inside thereof, one air suction plate (8) is horizontally arranged between the first rotating roller (6) positioned above and the positioning and ventilating rotating roller (1) positioned above, the other air suction plate (8) is horizontally arranged between the first rotating roller (6) positioned below and the positioning and ventilating rotating roller (1) positioned below, and the rest air suction plate (8) is vertically arranged between the two positioning and ventilating rotating rollers, three suction plate (8) all with two backup pad (5) are connected, and three one side that suction plate (8) were equipped with the eye with conveyer belt (2) laminating, the trachea interface is used for the air inlet intercommunication with negative pressure equipment.

9. A printing unit comprising a half-suction turnover mechanism according to any one of claims 4-5.

Technical Field

The invention belongs to the field of printing equipment, and particularly relates to a positioning ventilation rotating roller, a half-suction type turn-over mechanism and a printing device.

Background

The existing turnover mechanism is generally small in turnover speed, large in size and multiple in parts, and cannot meet the requirement of industrial high-speed printing.

Disclosure of Invention

In order to solve the above-mentioned problems, it is an object of the present invention to provide a positioning ventilation roller which has a simple structure and can ensure that a roller surface is always ventilated at one position when the roller rotates.

In order to achieve the purpose, the technical scheme of the invention is as follows: a positioning ventilation roller comprises a flow limiting plate and a roller body, wherein the roller body is horizontally arranged along the left-right direction, rotating shafts fixedly connected with the roller body are coaxially and convexly arranged at two ends of the roller body respectively, and the flow limiting plate is rotatably arranged on any one rotating shaft and is attached to one end part, close to the rotating shaft, of the roller body;

a plurality of air flow channels which are axially arranged are uniformly and concavely arranged at intervals along the circumferential direction at the end part of the roller body close to one end of the flow limiting plate, the air flow channels all extend to the other end close to the roller body, a plurality of air holes penetrating through the roller surface of the roller body are arranged on the hole wall of each air flow channel at intervals along the length direction, one end, close to the roller surface of the roller body, of each air hole corresponding to each air flow channel is axially distributed along the roller body, and one end, corresponding to the roller surface of the roller body, of each air hole is close to the corresponding air flow channel;

the flow limiting plate is provided with a through hole penetrating through the flow limiting plate corresponding to the rotating tracks of the plurality of air flow channels, at least one air flow channel is communicated with the through hole when the roller body and the flow limiting plate rotate relatively, and one end of the through hole, far away from the roller body, is introduced with air flow or sucks away the air flow.

The beneficial effects of the above technical scheme are that: the structure is simple, when the current limiting plate is kept static, the rotary roller body rotates along with the rotating shaft, the air flow channel of the rotary roller body is communicated with the through hole when the rotary roller body rotates to the position corresponding to the through hole, so that the air holes of the rotary roller body are always provided with air flow when the rotary roller body rotates to the position corresponding to the through hole, the rotary roller body is positioned and ventilated, if the air flow is introduced into the through hole, the air holes jet out the air flow, and if the air flow is sucked away from the through hole, the air holes are in negative pressure.

In the technical scheme, the through hole is an arc strip-shaped hole, the arc center of the through hole is positioned on the axis of the rotating roller body, and the arc center angle is 30-60 degrees; 12-24 airflow channels are arranged.

The beneficial effects of the above technical scheme are that: the hole area of the through hole is the minimum, and no matter how the roller body rotates, at least one air flow channel is communicated with the through hole all the time.

In the technical scheme, each air hole is a straight hole and is arranged along the radial direction of the rotary roller body.

The beneficial effects of the above technical scheme are that: therefore, the angles of the airflow channel and the corresponding air holes are kept consistent, and the control is convenient.

The invention also aims to provide a half-suction type turn-over mechanism which is simple in structure, small in size and high in turn-over speed.

In order to achieve the purpose, the technical scheme of the invention is as follows: a half-suction type turn-over mechanism comprises a conveying belt, a driving piece, a cover plate, two supporting plates, two first rotating rollers and two positioning ventilating rotating rollers, wherein the two supporting plates are vertically arranged along the front and back direction and are distributed at intervals along the left and right direction, the conveying belt and the cover plate are both positioned between the two supporting plates, the cover plate is a C-shaped plate with a backward opening, two sides of the cover plate respectively extend to be connected and fixed with the two supporting plates, the two positioning ventilating rotating rollers and the two first rotating rollers are horizontally arranged along the left and right direction and are respectively distributed at intervals along the up and down direction and are both positioned in a ring of the conveying belt, the two positioning ventilating rotating rollers are positioned in the cover plate, the two first rotating rollers are positioned behind the two positioning ventilating rotating rollers and jointly prop open the conveying belt, and a gap forming a paper feeding channel is formed between the cover plate and the conveying belt, every pivot and every of location commentaries on classics roller both ends of ventilating respectively with two the backup pad rotates to be connected, be covered with on the conveyer belt and inhale the hole, and its both sides all extend to and are close to two the backup pad, every the current-limiting plate all with be close to its one side the backup pad is connected fixedly, and its through-hole all is located and corresponds the roller body with the position department that the conveyer belt contacted, and every the through-hole is kept away from and is corresponded the one end of changeing the roller body is used for communicating with the air inlet of negative pressure equipment, the driving piece is installed in arbitrary one in the backup pad, it is used for driving two first commentaries on classics roller and two location commentaries on classics rollers and conveyer belt rotation of ventilating.

The beneficial effects of the above technical scheme are that: the paper turning device is simple in structure, small in size and capable of conveniently and rapidly turning over the paper.

Still include the second among the above-mentioned technical scheme and change the roller, the second changes the roller and is in two along left right direction level setting between the backup pad, and is located two location ventilation and changes roller and two middle part between the fourth of first roller, and be located outside the ring of conveyer belt, the second changes the both ends of roller and extends to respectively with two the backup pad rotates to be connected, the second changes roller, two location ventilation and changes the roller and two first rollers will jointly the conveyer belt struts.

The beneficial effects of the above technical scheme are that: so make two space that make the conveyer belt occupy littleer, the setting of other parts of being convenient for is convenient for simultaneously sending into and sending out of paper.

In the technical scheme, the upper end of the rotary roller body positioned above and the upper end of the first rotary roller positioned above are positioned in the same horizontal plane, and the lower end of the rotary roller body positioned below and the lower end of the first rotary roller positioned below are positioned in the same horizontal plane.

The beneficial effects of the above technical scheme are that: thus, the upper part and the lower part of the conveying belt are both in a horizontal state for conveying.

In the technical scheme, the two throttling plates are positioned on the same side and are attached to the corresponding supporting plates and fixedly connected with each other, and the positions of the two through holes on the corresponding supporting plates are respectively provided with an interface communicated with an air inlet of negative pressure equipment in a penetrating manner.

The beneficial effects of the above technical scheme are that: this makes its structure more compact.

The technical proposal also comprises three air suction plates which are arranged between the two supporting plates along the left-right direction and are positioned in the conveying belt ring, the air suction plates are hollow, and one side surface of the air suction plate is fully distributed with holes communicated with the inside of the air suction plate, the air suction plate is provided with an air pipe connector communicated with the inside of the air suction plate, one of the air suction plates is horizontally arranged between the first rotating roller positioned above and the positioning ventilation rotating roller positioned above, the other air suction plate is horizontally arranged between the first rotating roller positioned below and the positioning ventilation rotating roller positioned below, the rest one air suction plate is vertically arranged between the two positioning ventilation rotating rollers, and the three air suction plates are all connected with the two supporting plates, and three one side that the board that induced drafts was equipped with the eye with the conveyer belt laminating, the trachea interface is used for communicating with negative pressure equipment's air inlet.

The beneficial effects of the above technical scheme are that: so make the passageway of form advancing of conveyer belt all can provide the negative pressure by three aerofoil and two location ventilation change rollers for the paper adsorbs on the conveyer belt and conveyer belt synchronous motion at the turn-over in-process, thereby makes its turn-over fast.

The invention also aims to provide a printing device comprising the half-suction type turnover mechanism.

The beneficial effects of the above technical scheme lie in that its turn-over is fast, and turn-over is efficient.

Drawings

FIG. 1 is a schematic view of a positioning vented roller according to example 1 of the present invention;

FIG. 2 is a partial view of a positioning vented roller according to example 1 of the present invention;

FIG. 3 is a schematic structural diagram of a half-suction type turn-over mechanism according to embodiment 2 of the present invention;

fig. 4 is an internal view of a half-suction type turn-over mechanism according to embodiment 2 of the present invention;

fig. 5 is a position distribution diagram of the positioning ventilation rotating roller, the first rotating roller and the suction plate in the embodiment 2 of the invention.

In the figure: the device comprises a positioning ventilation rotating roller 1, a flow limiting plate 11, a 111 through hole, a rotating roller body 12, an airflow channel 121, an air hole 122, a rotating shaft 13, a conveying belt 2, a driving piece 3, a cover plate 4, a support plate 5, a first rotating roller 6, a second rotating roller 7 and an air suction plate 8.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 and fig. 2, the present embodiment provides a positioning ventilation roller, which includes a restrictor plate 11 and a roller body 12, wherein the roller body 12 is horizontally disposed along the left-right direction, and two ends of the roller body 12 are respectively and coaxially protruded with a rotating shaft 13 fixedly connected thereto, and the restrictor plate 11 is rotatably mounted on any one of the rotating shafts 13 and attached to one end of the roller body 12 close to the rotating shaft;

a plurality of air flow channels 121 axially arranged along the end portion of the roller body 12 close to one end of the restrictor plate 11 are uniformly and concavely arranged at intervals along the circumferential direction, the plurality of air flow channels 121 all extend to the other end close to the roller body 12, a plurality of air holes 122 penetrating through the roller surface of the roller body 12 are arranged on the hole wall of each air flow channel 121 along the length direction at intervals, one end of each air hole 122 corresponding to each air flow channel 121 close to the roller surface of the roller body 12 is axially distributed along the roller body 12, and one end of each air hole 122 corresponding to the roller surface of the roller body 12 is close to the corresponding air flow channel 121;

a through hole 111 penetrating through the restrictor plate 11 is formed at a position corresponding to a rotating track of the plurality of air flow channels 121, and when the roller body 12 and the restrictor plate 11 rotate relatively, at least one air flow channel 121 is communicated with the through hole 111, and air flow is introduced into or sucked away from one end of the through hole 111, which is far away from the roller body 12. The structure is simple, when the current limiting plate is kept static, the rotary roller body rotates along with the rotating shaft, the air flow channel of the rotary roller body is communicated with the through hole when the rotary roller body rotates to the position corresponding to the through hole, so that the air holes of the rotary roller body are always provided with air flow when the rotary roller body rotates to the position corresponding to the through hole, the rotary roller body is positioned and ventilated, if the air flow is introduced into the through hole, the air holes jet out the air flow, and if the air flow is sucked away from the through hole, the air holes are in negative pressure. The shape of the flow limiting plate is unlimited, only the through hole needs to be formed, the circular plate is preferably adopted, the flow limiting plate and one end, close to each other, of the rotary roller body are smooth surfaces, and friction between the flow limiting plate and the rotary roller body is the minimum.

In the above technical solution, the through hole 111 is an arc-shaped hole, and the arc center of the through hole is located on the axis of the rotating roller body 12, and the arc center angle is 30-60 °; the number of the air flow channels 121 is 12-24, so that the hole area of the through holes is the minimum, and no matter how the roller body rotates, at least one air flow channel is always communicated with the through holes. Preferably, there are 16 gas flow passages and the angle of the centre of arc of the through-hole is 45 °.

In the above technical solution, each air hole 122 is a straight hole and is radially disposed along the roller body 12, so that the air flow channel and the corresponding air holes have the same angle, and the control is facilitated.

Example 2

As shown in fig. 3-5, this embodiment provides a half-suction turn-over mechanism, which includes a conveyor belt 2, a driving member 3, a cover plate 4, two support plates 5, two first rotating rollers 6, and two positioning ventilating rotating rollers 1 as in embodiment 1, wherein the two support plates 5 are vertically disposed along a front-back direction and are spaced apart from each other along a left-right direction, the conveyor belt 2 and the cover plate 4 are both located between the two support plates 5, the cover plate 4 is a C-shaped plate with a rear opening, two sides of the C-shaped plate respectively extend to be connected and fixed with the two support plates 5, the two positioning ventilating rotating rollers 1 and the two first rotating rollers 6 are both horizontally disposed along the left-right direction and are spaced apart from each other along a top-bottom direction, and are both located in a ring of the conveyor belt 2, the two positioning ventilating rotating rollers 1 are located in the cover plate 4, the two first rotating rollers 6 are located behind the two positioning ventilating rotating, the conveying belt 2 is jointly propped open, a gap forming a paper feeding channel is formed between the cover plate 4 and the conveying belt 2, a rotating shaft 13 at two ends of each positioning ventilation rotating roller 1 and two ends of each first rotating roller 6 are respectively and rotatably connected with the two supporting plates 5, suction holes are fully distributed in the conveying belt 2, two sides of each conveying belt are extended to be close to the two supporting plates 5, each flow limiting plate 11 is fixedly connected with the supporting plate 5 close to one side of the flow limiting plate, a through hole 111 of each flow limiting plate is located at a position corresponding to the contact position of the rotating roller body 12 and the conveying belt 2, one end, far away from the rotating roller body 12, of each through hole 111 is communicated with an air inlet of negative pressure equipment, the driving piece 3 is installed on any one supporting plate 5 and used for driving the two first rotating rollers 6, the two positioning ventilation rotating rollers 1 and the conveying belt 2 to rotate, the paper turning device is simple in structure, small in size and capable of conveniently and rapidly turning over the paper. The paper can be adsorbed on the conveying belt under the action of the negative pressure of the positioning ventilation roller at two turning positions of the conveying belt, the conveying of the paper by the conveying belt is realized, and meanwhile, the paper is pushed forward by the conveying belt for one stroke to complete turnover. Wherein, the upper and lower both ends of cover plate extend to respectively and are close to two first commentaries on classics roller.

And the diameter of the first roller is smaller than that of the roller body.

Still include the second among the above-mentioned technical scheme and change roller 7, the second changes roller 7 and sets up two along left right direction level between backup pad 5, and is located two location ventilation and changes roller 1 and two middle part between the first roller 6 four, and be located outside the ring of conveyer belt 2, the second changes the both ends of roller 7 and extends to respectively and two backup pad 5 rotates to be connected, the second changes roller 7, two location ventilation and changes roller 1 and two first roller 6 will jointly conveyer belt 2 struts, so make two spaces that the conveyer belt occupy littleer, the setting of other parts of being convenient for, the paper of being convenient for simultaneously send into and send out.

In the technical scheme, the upper end of the roller body 12 positioned above and the upper end of the first roller 6 positioned above are positioned in the same horizontal plane, the lower end of the roller body 12 positioned below and the lower end of the first roller 6 positioned below are positioned in the same horizontal plane, and thus, the upper part and the lower part of the conveying belt are both conveyed in a horizontal state.

In the above technical solution, the two restrictor plates 11 are located on the same side, and are attached to the corresponding support plates 5 and fixed to each other, and the corresponding support plates 5 are located at the positions of the two through holes 111, and are respectively provided with an interface for communicating with an air inlet of a negative pressure device, so that the structure of the negative pressure device is more compact. And preferably, the two restrictor plates and the corresponding support plate are integrally formed.

Specifically, as shown in fig. 5, the above technical solution further includes three air suction plates 8 disposed between the two support plates 5 in the left-right direction and located in the ring of the conveyor belt 2, the air suction plates 8 are hollow, and one side surface of each air suction plate 8 is fully provided with holes communicated with the inside of the air suction plate, the air suction plate 8 is provided with an air pipe connector communicated with the inside of the air suction plate, one of the air suction plates 8 is horizontally disposed between the first rotating roller 6 located above and the positioning ventilation rotating roller 1 located above, the other air suction plate 8 is horizontally disposed between the first rotating roller 6 located below and the positioning ventilation rotating roller 1 located below, the remaining air suction plate 8 is vertically disposed between the two positioning ventilation rotating rollers, the three air suction plates 8 are all connected to the two support plates 5, and one side of the three air suction plates 8 provided with holes is attached to the conveyor belt 2, the air pipe interface is used for being communicated with an air inlet of negative pressure equipment, so that a paper feeding channel of the conveying belt can be provided with negative pressure by the three air suction plates and the two positioning ventilation rotating rollers, paper is adsorbed on the conveying belt in the turnover process and moves synchronously with the conveying belt, and the turnover speed of the paper is high.

Preferably, the driving piece is a motor, and the motor is preferably connected with two rotating shafts at the same end of the positioning ventilation rotating roller through a synchronous belt in a transmission manner, and other connection modes can be adopted, so that the details are omitted.

Example 3

This embodiment provides a printing apparatus comprising the half-suction type turn-over mechanism according to embodiment 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.