CN113910789B - Induced draft platform device and digital printing machine - Google Patents
Induced draft platform device and digital printing machine Download PDFInfo
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- CN113910789B CN113910789B CN202111003542.0A CN202111003542A CN113910789B CN 113910789 B CN113910789 B CN 113910789B CN 202111003542 A CN202111003542 A CN 202111003542A CN 113910789 B CN113910789 B CN 113910789B
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- air suction
- platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0005—Curl smoothing, i.e. smoothing down corrugated printing material, e.g. by pressing means acting on wrinkled printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0085—Using suction for maintaining printing material flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0022—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using convection means, e.g. by using a fan for blowing or sucking air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
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- Handling Of Sheets (AREA)
Abstract
The invention relates to an air suction platform device and a digital printing machine, wherein the air suction platform device comprises an air suction platform, and a plurality of pairs of upper supporting pieces and lower supporting pieces which are uniformly distributed at the bottom of the air suction platform along the length direction of the air suction platform, the upper supporting pieces are fixedly connected with the air suction platform, and the lower supporting pieces are fixedly connected with a rack of the digital printing machine; the air suction platform adopts an integrated air suction platform, a negative pressure cavity is arranged in the air suction platform, each pair of upper supporting pieces and lower supporting pieces are connected through at least two groups of dynamic balance connecting pieces, the dynamic balance connecting pieces enable the upper supporting pieces and the lower supporting pieces to form a top-to-bottom pulling mutual holding effect, and the upper supporting pieces and the lower supporting pieces can move mutually in the horizontal direction and do not interfere with each other. The digital printing machine is provided with the air suction platform device, so that the digital printing machine can output flatter printing media, the installation and adjustment of the air suction platform are convenient, the installation precision of the air suction platform is not reduced due to different expansion coefficients between the air suction platform and the frame, and the printing precision is ensured.
Description
Technical Field
The invention relates to the technical field of digital printing machines, in particular to an air suction platform device and a digital printing machine.
Background
The utility model provides a paper product digital printing machine's platform device that induced drafts usually includes the platform that induced drafts and mounting structure thereof, the platform that induced drafts sets up the induced draft hole on print platform, utilize negative pressure principle to adsorb paper on print platform, be difficult for appearing the stranding phenomenon behind the assurance paper ink absorption, present printing platform that induced drafts usually includes induced drafts apron and casing, for example, it is shown in the patent of CN208452592U to authorize the bulletin number, the induced draft hole has been seted up on the apron that induced drafts, the apron that induced drafts is installed on the casing, the casing has the negative pressure chamber, when the print platform that induced drafts is great, can lead to the leakproofness that the apron that induced drafts is installed on the casing to can not be guaranteed, thereby make negative pressure effect reduce.
In addition, there are the following disadvantages in the mounting structure of the suction platform: the existing induced draft platform is usually made of aluminum materials through integral forming, the induced draft platform is installed on a frame of a printing machine through a fastener, the frame of the printing machine is usually made of steel materials, the frame or the induced draft platform can generate certain deformation due to the fact that the printing machine can generate heat or is influenced by the temperature of an external working environment after long-time running, and the generated deformation is different due to the fact that expansion coefficients of the frame or the induced draft platform are different, the installation accuracy of the induced draft platform is not guaranteed, and printing accuracy is further influenced.
Accordingly, there is a need for improvements and optimizations to existing suction platform arrangements.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the air suction platform device which is reasonable in structural design, convenient to install and adjust and good in adsorption effect, and the digital printing machine with the air suction platform device.
The invention solves the problems by adopting the following technical scheme: the air suction platform device comprises an air suction platform, and a plurality of pairs of upper supporting pieces and lower supporting pieces which are uniformly distributed at the bottom of the air suction platform along the length direction of the air suction platform, wherein the upper supporting pieces are fixedly connected with the air suction platform, and the lower supporting pieces are fixedly connected with a rack of a digital printing machine; the method is characterized in that: the air suction platform adopts an integrated air suction platform, a negative pressure cavity is arranged in the air suction platform, a plurality of wave-shaped air suction grooves are arranged on the upper surface of the air suction platform side by side, the air suction grooves extend along the moving direction of the printing medium, a plurality of air suction holes are uniformly distributed at the bottom of the air suction platform along the extending direction of the air suction grooves, and the air suction holes are communicated with the negative pressure cavity; two ends of the air suction groove are respectively spaced from the edge of the upper surface of the adjacent air suction platform; each pair of upper support members and lower support members are connected by at least two sets of dynamically balanced connectors, each set of dynamically balanced connectors comprising an upper top member and a lower pull member; the upper supporting piece is fixedly connected with the lower supporting piece, the upper end of the upper supporting piece is propped against the bottom surface of the upper supporting piece, and the upper supporting piece is used for acting upward propping force on the upper supporting piece; the upper part of the pull-down piece is fixedly connected with the upper supporting piece, the lower part of the pull-down piece is elastically connected with the lower supporting piece, the pull-down piece and the lower supporting piece can move relatively in the horizontal direction, and the pull-down piece is used for acting downward pulling force on the upper supporting piece.
Preferably, the air suction platform comprises a platform main body and a bottom shell integrally formed and connected with the bottom of the platform main body, the negative pressure cavity is formed by the bottom shell and the platform main body, and the air suction groove is formed in the upper surface of the platform main body.
Preferably, the two sides of the upper surface of the platform main body are respectively provided with a flying ink absorbing through hole for absorbing flying ink.
Preferably, a connecting rib is arranged between the platform main body and the bottom shell.
Preferably, the air suction holes in all the air suction grooves are arranged in a plurality of rows, and the bottom surface of the platform main body between every two adjacent rows of air suction holes is connected with a strip-shaped reinforcing rib.
Preferably, the strip-shaped reinforcing ribs are arranged along the length direction of the platform main body, and the strip-shaped reinforcing ribs are hollow strip-shaped reinforcing ribs.
Preferably, the bottom surface of the bottom shell is provided with a mounting hole for mounting the fan.
Preferably, the upper top piece comprises a first bolt and a cylindrical pin, a first stepped through hole with a thick upper part and a thin lower part is formed in the lower support piece, and a fine hole of the first stepped through hole is an internal threaded hole; the first bolt is connected with the first stepped through hole through fine threads; the cylindrical pin is arranged in the rough hole of the first stepped through hole, one end of the cylindrical pin is abutted against the first bolt, and the other end of the cylindrical pin is abutted against the bottom surface of the upper supporting piece.
Preferably, the pull-down piece comprises a second bolt and a spring, a blind hole with internal threads is formed in the bottom surface of the upper support piece, and a second stepped through hole with thin upper part and thick lower part is formed in the lower support piece; the spring is arranged in the rough hole of the step through hole II, and a certain radial gap exists between the spring and the rough hole; the second bolt sequentially penetrates through the spring and the second pore of the stepped through hole and is in threaded connection with the blind hole of the upper support piece, and the second bolt and the second pore of the stepped through hole are in clearance fit installation.
Preferably, a counter bore I is formed in the upper support piece, and a bolt is arranged in the counter bore I so as to fixedly connect the upper support piece with the air suction platform; and the lower support piece is fixedly connected with the frame of the digital printing machine by arranging a bolt in the counter bore II.
The invention also provides a digital printing machine, which comprises a frame and is characterized in that: the air suction platform device is characterized by further comprising the air suction platform device.
Preferably, one end of the digital printing machine is provided with a winding and unwinding mechanism with an unwinding roller and a winding roller, and at least a first cloth guide roller, a first floating spreading cloth guide brush roller, a second cloth guide roller, a second spreading cloth guide brush roller, a third cloth guide roller, a main power rubber roller, a first cloth guide step roller, a third floating spreading cloth guide brush roller and a second cloth guide step roller are arranged on a rack according to a feeding route of printing media from the unwinding roller to the winding roller; wherein the air suction platform device is positioned between the main power rubber roller and the first cloth guide step roller.
Compared with the prior art, the invention has the following advantages and effects:
1. the air suction platform is made of integral molding, so that the existing mounting gaps are fewer, and the generated negative pressure effect is good;
2. the two ends of the air suction groove are respectively spaced from the edge of the upper surface of the adjacent platform main body, so that printing media, particularly transfer paper, can smoothly enter and exit the printing platform;
3. the air suction holes are formed in the air suction grooves, so that the air suction area is increased, the adsorption effect is good, the drying effect on the printing medium is good, and the medium is smoother;
4. the upper supporting piece and the lower supporting piece are connected through dynamic balance connecting pieces, each group of dynamic balance connecting pieces comprises an upper top piece and a lower pull piece, the upper top piece and the lower pull piece form a top-pull mutual holding function between the upper supporting piece and the lower supporting piece, the upper supporting piece and the lower supporting piece can move mutually in the horizontal direction and do not interfere with each other, and the installation space between the upper supporting piece and the lower supporting piece in the height direction can be adjusted, so that the defect that the installation precision of an air suction platform is reduced due to different expansion coefficients of the air suction platform and a frame can be overcome;
5. the digital printing machine uses the air suction platform device, so that a flatter printing medium can be output, the installation and adjustment of the air suction platform are convenient, the installation precision of the air suction platform is not reduced due to different expansion coefficients between the air suction platform and the frame, and the printing precision is ensured;
6. the digital printing machine adopts the hairbrush roller to conduct multi-stage cloth guiding and expanding, so that the printed medium is not easy to wrinkle and has good flatness.
Drawings
In order to more clearly illustrate the embodiments of the invention or the solutions in the prior art, a brief description will be given below of the drawings that are needed in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a front view structure of an air suction platform device installed on a frame of a digital printing machine according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of an air suction platform device according to an embodiment of the present invention.
Fig. 3 is a schematic side view of an air suction platform device according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of the upper and lower support members of fig. 3 connected together.
Fig. 5 is a schematic top view of an air suction platform according to an embodiment of the present invention.
Fig. 6 is an enlarged schematic view of the structure at a in fig. 5.
Fig. 7 is a schematic cross-sectional view of a digital printing machine according to an embodiment of the present invention.
Reference numerals illustrate:
an air suction platform 1;
a platform main body 100; a bottom case 101; a negative pressure chamber 102; a connecting rib 103; a bar-shaped reinforcing rib 104;
a mounting hole 1010;
an upper support 2; a blind hole 21; counterbore one 22;
a lower support 3; step through hole one 31; step through hole two 32; a second counter bore 33;
a frame 4;
an upper top 5; bolt one 51; cylindrical pin 52;
a pull-down member 6; a second bolt 61; a spring 62;
a winding and unwinding mechanism 7; an unwind roller 700; a wind-up roll 701; fourth spread cloth guide brush roller 702; a spreading brush roller 703 before winding; a swivel arm 704;
a first cloth guide roller 8; a first floating spreading cloth-guiding brush roller 9; a second cloth guide roller 10; a second spreading cloth-guiding brush roller 11; a third cloth guide roll 12; a main power rubber roller 13; a first cloth guide step roller 14; a third floating spreading cloth-guiding brush roller 15; a second cloth guide step roller 16.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
See fig. 1-7.
The embodiment discloses an induced draft platform device, including induced draft platform 1 and follow induced draft platform 1 length direction equipartition is in its bottom a plurality of pairs of upper support piece 2 and lower support piece 3, and upper support piece 2 and induced draft platform 1 fixed connection, lower support piece 3 and digital printing machine's frame 4 fixed connection.
In this embodiment, the air suction platform 1 is an integrated air suction platform, which includes a platform main body 100 and a bottom shell 101 integrally formed and connected to the bottom of the platform main body 100, the platform main body 100 and the bottom shell 101 are made into the air suction platform 1 by an aluminum integrated forming process, two sides of the air suction platform 1 are open, and when in use, two sides of the air suction platform are to be installed with sealing plates (not shown in the drawing) for sealing.
In this embodiment, the bottom shell 101 and the platform body 100 form a negative pressure cavity 102, and a connecting rib 103 for reinforcing connection is disposed between the platform body 100 and the bottom shell 101. The upper surface of the platform main body 100 is provided with a plurality of air suction grooves 1001 in a wave shape (S-shape) side by side, the air suction grooves 1001 extend along the moving direction of the printing medium, and a plurality of air suction holes 1002 distributed along the extending direction are uniformly distributed at the bottom of the air suction grooves 1001, the air suction holes 1002 are communicated with the negative pressure cavity 102, the bottom surface of the bottom shell 101 is provided with a mounting hole 1010 for mounting a fan, and negative pressure is generated in the negative pressure cavity 102 by using the fan for exhausting, so that the printing medium is adsorbed on the platform main body 100.
In this embodiment, two ends of the suction groove 1001 are spaced apart from the edges of the upper surface of the platform body 100 adjacent thereto, respectively, so that the printing medium, particularly the transfer paper, can be smoothly fed into and discharged from the printing platform.
In this embodiment, both sides of the upper surface of the platform main body 100 are respectively provided with a through hole 1003 for absorbing the flying ink, so as to prevent the flying ink ejected from the nozzle from scattering.
In this embodiment, considering that the platform main body 100 is provided with a plurality of air suction holes 1002 and ink suction through holes 1003, all the ink suction through holes 1003 and the air suction holes 1002 in the air suction grooves 1001 are arranged in a plurality of rows, the strength of the platform main body 100 is reduced to a certain extent by the porous structure, so that the strip-shaped reinforcing ribs 104 are connected to the bottom surface of the platform main body 100 between every two adjacent rows of air suction holes 1002, so that the strength of the platform main body 100 can be enhanced. The bar-shaped reinforcing ribs 104 are arranged along the length direction of the platform main body 100, and the bar-shaped reinforcing ribs 104 are hollow bar-shaped reinforcing ribs. The strip-shaped reinforcing ribs 104 are hollow, so that weight is reduced on one hand, and sealing plates are conveniently arranged on two sides of the air suction platform on the other hand.
In this embodiment, the upper support member 2 is made of the same material as the air suction platform 1, the lower support member 3 is made of the same material as the frame 4 of the digital printing machine, and in this embodiment, the frame 4 of the digital printing machine is made of steel.
In this embodiment, the upper support 2 is provided with a first counterbore 22, and the upper support 2 is fixedly connected with the air suction platform 1 by installing a bolt in the first counterbore 22. The lower support piece 3 is provided with a second counter bore 33, and the lower support piece 3 is fixedly connected with the frame 4 of the digital printing machine by installing bolts in the second counter bore 33.
In this embodiment, each pair of upper support 2 and lower support 3 is connected by two sets of dynamically balanced connectors, respectively connecting the two ends of upper support 2 and lower support 3 together. In other embodiments, if the suction platform 1 is wide in the width direction, more than two sets of dynamic balance connectors should be provided. In this embodiment, the dynamic balance connector enables the connection between the upper support 2 and the lower support 3 to be non-rigid, and the two are flexibly connected, so that when either one of the two is deformed, the deformation of the other is not limited.
In this embodiment, each set of dynamically balancing connectors includes an upper top member 5 and a lower pull member 6, wherein the upper top member 5 is configured to apply an upward top force to the upper support member 2, and the lower pull member 6 is configured to apply a downward pull force to the upper support member 2. The upper top piece 5 comprises a first bolt 51 and a cylindrical pin 52, and the pull-down piece 6 comprises a second bolt 61 and a spring 62.
In this embodiment, a first stepped through hole 31 with a thick upper part and a thin lower part is formed on the lower support member 3, and the fine hole of the first stepped through hole 31 is an internal threaded hole; the first bolt 51 is connected with the thin thread of the first stepped through hole 31; the cylindrical pin 52 is fitted in the rough hole of the stepped through hole one 31 with one end abutting against the bolt one 51 and the other end abutting against the bottom surface of the upper support 2.
In this embodiment, the bottom surface of the upper support 2 is provided with a blind hole 21 with internal threads, and the lower support 3 is provided with a stepped through hole 32 with a thin upper part and a thick lower part. The spring 62 is arranged in the rough hole of the step through hole II 32, and a certain radial gap exists between the spring and the rough hole; the second bolt 61 is threaded with the blind hole 21 of the upper support 2 after sequentially penetrating through the spring 62 and the fine hole of the second stepped through hole 32, and the second bolt 61 and the fine hole of the second stepped through hole 32 are installed in a clearance fit manner.
In this embodiment, if the air suction platform 1 and the upper support 2 are deformed, such as horizontally moved (i.e. deformed in the horizontal direction, the lower support is the same), the upper support 2 will drive the lower support 6 to translate together, the lower support 3 will not interfere with the translation of the lower support 6, and similarly, if the frame 4 of the digital printing machine is deformed, such as horizontally moved, the lower support 3 will drive the upper top 5 to translate together, and the upper support 2 will not interfere with the translation of the upper top 5.
In this embodiment, the upper supporting member 5 and the lower supporting member 6 form a top-to-bottom pulling and holding function between the upper supporting member 2 and the lower supporting member 3, and the two members can move in the horizontal direction without interference, and the installation space between the two members in the height direction can be adjusted, so that dynamic balance adjustment can be performed.
The embodiment also provides a digital printing machine, which comprises a frame 4 and the air suction platform device. One end of the digital printing machine is provided with a winding and unwinding mechanism 7 with an unwinding roller 700 and a winding roller 701, and a first cloth guide roller 8, a first floating spreading cloth guide brush roller 9, a second cloth guide roller 10, a second spreading cloth guide brush roller 11, a third cloth guide roller 12, a main power rubber roller 13, a first cloth guide step roller 14, a third floating spreading cloth guide brush roller 15 and a second cloth guide step roller 16 are arranged on a frame 4 according to a feeding route of printing media from the unwinding roller 700 to the winding roller 701; wherein the air suction platform device is positioned between the main power rubber roller 13 and the first cloth guide step roller 14.
The digital printing machine adopts the brush roller to conduct multistage cloth guiding and expanding, so that the printed medium is not easy to wrinkle, has good flatness, and is further provided with a fourth cloth expanding and guiding brush roller 702 and a cloth expanding brush roller 703 before rolling in the winding and unwinding mechanism 7. The printing medium transferred from the second cloth guide step roller 16 passes through the fourth expanding cloth guide brush roller 702, and is then wound onto the winding roller 701 after being expanded by the expanding brush roller 703 before being wound. The before-winding expanding brush roller 703 is used to cooperate with the wind-up roller 701, apply pressure to the medium before being wound up, and expand and flatten the medium, specifically, two V-shaped rotating arms 704 need to be configured for installing the before-winding expanding brush roller 703, the two rotating arms 704 are respectively located at two ends of the before-winding expanding brush roller 703, one end of the rotating arm 704 is hinged with a wallboard in the winding and unwinding mechanism 7, and the other end of the rotating arm 704 is rotatably connected with an end of the before-winding expanding brush roller 703. As the thickness of the printed medium in the form of a roll on the wind-up roller 701 increases gradually, the wind-up pre-expanding brush roller 703 and the rotating arm 704 rotate around the hinge point of the rotating arm 704 and the wallboard of the winding and unwinding mechanism 7 to lift upwards, and in this process, the wind-up pre-expanding brush roller 703 always contacts with the side of the medium without printing, and provides a pressing force to the medium.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present invention. Equivalent or simple changes of the structure, characteristics and principle of the present invention are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The air suction platform device comprises an air suction platform (1), and a plurality of pairs of upper supporting pieces (2) and lower supporting pieces (3) which are uniformly distributed at the bottom of the air suction platform (1) along the length direction of the air suction platform, wherein the upper supporting pieces (2) are made of the same material as the air suction platform (1) and are fixedly connected, and the lower supporting pieces (3) are made of the same material as a frame (4) of a digital printing machine and are fixedly connected; the method is characterized in that: the air suction platform (1) comprises a platform main body (100) and a bottom shell (101) which is integrally formed and connected to the bottom of the platform main body (100), the bottom shell (101) and the platform main body (100) form a negative pressure cavity (102), a plurality of wave-shaped air suction grooves (1001) are arranged on the upper surface of the platform main body (100) side by side, the air suction grooves (1001) extend along the moving direction of a printing medium, a plurality of air suction holes (1002) are uniformly distributed on the bottom of the groove along the extending direction of the air suction grooves, and the air suction holes (1002) are communicated with the negative pressure cavity (102); two ends of the air suction groove (1001) are respectively spaced from the edge of the upper surface of the adjacent platform main body (100) at a certain distance; each pair of upper supporting pieces (2) and lower supporting pieces (3) are connected through at least two groups of dynamic balance connecting pieces, and each group of dynamic balance connecting pieces comprises an upper top piece (5) and a lower pull piece (6); the upper top piece (5) is fixedly connected with the lower support piece (3), the upper end of the upper top piece is abutted against the bottom surface of the upper support piece (2) and is used for acting upward top force on the upper support piece (2); the upper part of the pull-down piece (6) is fixedly connected with the upper support piece (2), the lower part of the pull-down piece (6) is elastically connected with the lower support piece (3) and can move relatively in the horizontal direction, and the pull-down piece (6) is used for applying downward pulling force to the upper support piece (2);
the upper top piece (5) comprises a first bolt (51) and a cylindrical pin (52), a first stepped through hole (31) with a thick upper part and a thin lower part is formed in the lower support piece (3), and a fine hole of the first stepped through hole (31) is an internal threaded hole; the first bolt (51) is connected with the first stepped through hole (31) through fine threads; the cylindrical pin (52) is arranged in a rough hole of the first stepped through hole (31), one end of the cylindrical pin is abutted against the first bolt (51), and the other end of the cylindrical pin is abutted against the bottom surface of the upper supporting piece (2);
the pull-down piece (6) comprises a second bolt (61) and a spring (62), a blind hole (21) with internal threads is formed in the bottom surface of the upper support piece (2), and a second stepped through hole (32) with a thin upper part and a thick lower part is formed in the lower support piece (3); the spring (62) is arranged in a rough hole of the step through hole II (32), and a certain radial gap exists between the spring and the rough hole; the second bolt (61) sequentially penetrates through the spring (62) and the fine hole of the second stepped through hole (32) and is in threaded connection with the blind hole (21) of the upper support piece (2), and the second bolt (61) and the fine hole of the second stepped through hole (32) are in clearance fit installation.
2. The suction platform arrangement according to claim 1, wherein: and two sides of the upper surface of the platform main body (100) are respectively provided with a flying ink absorbing through hole (1003) for absorbing flying ink.
3. The suction platform arrangement according to claim 1, wherein: connecting ribs (103) are arranged between the platform main body (100) and the bottom shell (101).
4. The suction platform arrangement according to claim 1, wherein: the air suction holes (1002) in all the air suction grooves (1001) form a plurality of rows, and the bottom surface of the platform main body (100) between every two adjacent rows of air suction holes (1002) is connected with a strip-shaped reinforcing rib (104).
5. The suction platform arrangement according to claim 4, wherein: the strip-shaped reinforcing ribs (104) are arranged along the length direction of the platform main body (100), and the strip-shaped reinforcing ribs (104) are hollow strip-shaped reinforcing ribs.
6. The suction platform arrangement according to claim 1, wherein: the bottom surface of the bottom shell (101) is provided with a mounting hole (1010) for mounting a fan.
7. The suction platform arrangement according to claim 1, wherein: the upper support piece (2) is provided with a first counter bore (22), and the upper support piece (2) is fixedly connected with the air suction platform (1) through a bolt arranged in the first counter bore (22); and a counter bore II (33) is formed in the lower support piece (3), and the lower support piece (3) is fixedly connected with a frame (4) of the digital printing machine through a bolt arranged in the counter bore II (33).
8. The utility model provides a digital printing machine, includes frame (4), its characterized in that: a suction platform arrangement according to any of claims 1 to 7.
9. The digital printing machine of claim 8, wherein: one end of the digital printing machine is provided with a winding and unwinding mechanism (7) which is provided with an unwinding roller (700) and a winding roller (701) at the same time, and a frame (4) is provided with at least a first cloth guide roller (8), a first floating spreading cloth guide brush roller (9), a second cloth guide roller (10), a second spreading cloth guide brush roller (11), a third cloth guide roller (12), a main power rubber roller (13), a first cloth guide step roller (14), a third floating spreading cloth guide brush roller (15) and a second cloth guide step roller (16) according to the feeding route of printing media from the unwinding roller (700) to the winding roller (701); wherein the air suction platform device is positioned between the main power rubber roller (13) and the first cloth guide step roller (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111003542.0A CN113910789B (en) | 2021-08-30 | 2021-08-30 | Induced draft platform device and digital printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111003542.0A CN113910789B (en) | 2021-08-30 | 2021-08-30 | Induced draft platform device and digital printing machine |
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| Publication Number | Publication Date |
|---|---|
| CN113910789A CN113910789A (en) | 2022-01-11 |
| CN113910789B true CN113910789B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111003542.0A Active CN113910789B (en) | 2021-08-30 | 2021-08-30 | Induced draft platform device and digital printing machine |
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| CN115071279B (en) * | 2022-07-07 | 2024-02-23 | 杭州宏华数码科技股份有限公司 | Flying ink collecting device and inkjet printing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4343918A1 (en) * | 1993-12-22 | 1995-07-13 | Gerhard Hoffmann | Workbench, especially for welding and steel construction work |
| CN205890248U (en) * | 2016-06-24 | 2017-01-18 | 郑州奥德利数控设备有限公司 | UV printer platform leveling mechanism of induced drafting |
| CN208452592U (en) * | 2018-06-04 | 2019-02-01 | 深圳市润天智数字设备股份有限公司 | Digit printing air intake device and digital decorating machine |
| CN108638670A (en) * | 2018-06-04 | 2018-10-12 | 深圳市润天智数字设备股份有限公司 | Digit printing air intake device and digital decorating machine |
| CN209240695U (en) * | 2018-11-12 | 2019-08-13 | 杭州御澜科技有限公司 | A kind of air draught leveling platform for smooth printing paper |
| CN209718638U (en) * | 2019-02-19 | 2019-12-03 | 张启友 | The magnet construction model platform of 3D printer |
| CN212097998U (en) * | 2019-11-07 | 2020-12-08 | 杭州宏华数码科技股份有限公司 | Digital printing machine with negative pressure jet printing platform |
| CN111204122B (en) * | 2020-01-10 | 2022-01-25 | 杭州御澜科技有限公司 | Printing machine |
| CN211769246U (en) * | 2020-09-09 | 2020-10-27 | 广东希望高科数字技术有限公司 | DDR driven synchronous paper guide mechanism and digital printing machine thereof |
| CN113022166A (en) * | 2021-03-12 | 2021-06-25 | 苏州天陆图文科技有限公司 | Precise printing platform |
| CN112895721A (en) * | 2021-04-01 | 2021-06-04 | 广东立彩数码科技有限公司 | Superspeed digital printing machine |
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