CN112356584A - Opposite direction adjustment structure and package decoration printing edge-changing equipment - Google Patents

Opposite direction adjustment structure and package decoration printing edge-changing equipment Download PDF

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Publication number
CN112356584A
CN112356584A CN202011262942.9A CN202011262942A CN112356584A CN 112356584 A CN112356584 A CN 112356584A CN 202011262942 A CN202011262942 A CN 202011262942A CN 112356584 A CN112356584 A CN 112356584A
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CN
China
Prior art keywords
clamping
printing
shaft
moving block
fixedly connected
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011262942.9A
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Chinese (zh)
Inventor
卢平安
李标雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changde Tongchuang Packaging Co ltd
Original Assignee
Changde Tongchuang Packaging Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changde Tongchuang Packaging Co ltd filed Critical Changde Tongchuang Packaging Co ltd
Priority to CN202011262942.9A priority Critical patent/CN112356584A/en
Publication of CN112356584A publication Critical patent/CN112356584A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00Devices 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/001Mechanisms for bodily moving print heads or carriages parallel to the paper surface

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The invention discloses a facing adjustment structure and packaging decoration printing and trimming equipment, which comprises a processing box; and a clamping and rotating mechanism used for clamping the packaging box and driving the packaging box to rotate and change edges and a printing mechanism matched with the clamping and rotating mechanism to print the outer surface of the packaging box are arranged in the processing box. The invention realizes the edge-changing printing of the packing box by arranging the bearing disc for clamping and driving the packing box to rotate and the printing mechanism matched with the bearing disc, improves the efficiency of the edge-changing printing of the packing box, and has simple structure and few control nodes; simultaneously through being equipped with including adjustment mechanism and the centre gripping subassembly of adjusting printer head interval, the centre gripping and the printing of the packing box of adaptation different specifications have better adaptability.

Description

Opposite direction adjustment structure and package decoration printing edge-changing equipment
Technical Field
The invention relates to the field of printing equipment, in particular to a facing adjustment structure and packaging decoration printing and edge changing equipment.
Background
In the printing field, decoration printing needs to be carried out on each face of a packaging box, a traditional packaging printing device can only carry out single-face printing, when edges need to be changed, a rotating mechanism needs to be controlled independently to carry out gradual edge changing operation, four sides need to carry out four-time edge changing operation, the control structure is complex, and the efficiency of edge changing printing is reduced.
The application provides a subtend adjustment structure and packing decoration printing change limit equipment.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background, the invention provides a facing adjustment structure and a printing and trimming device for packaging decoration.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
an opposite direction adjusting structure comprises a processing box; a clamping and rotating mechanism used for clamping the packaging box and driving the packaging box to rotate and change edges and a printing mechanism matched with the clamping and rotating mechanism to print the outer surface of the packaging box are arranged in the processing box;
the clamping and rotating mechanism comprises a bearing plate, a clamping assembly and a rotating power mechanism, wherein the clamping assembly is arranged on the bearing plate and used for clamping the packaging box, and the rotating power mechanism is used for driving the bearing plate to rotate; the printing mechanism comprises a printing assembly and an opposite power mechanism for driving the printing assembly to transversely move.
As a further scheme of the invention: the clamping assembly comprises a group of clamping plates which are oppositely arranged above the bearing disc, a first moving block is fixedly connected below the clamping plates, and a first sliding groove for the first moving block to slide is formed in the bearing disc; a first screw rod is nested in the first sliding groove, penetrates through the first moving block and is in threaded connection with the first moving block; the inner side of the first screw rod is connected with a first double-shaft motor through a coupler, and the first double-shaft motor is nested in the bearing disc.
As a further scheme of the invention: the printing assembly comprises a group of printer heads which are oppositely arranged; the upper part of the printing assembly is connected with an adjusting mechanism for adjusting the distance between printer heads which are arranged oppositely, the adjusting machine head is connected with a reciprocating assembly, the reciprocating assembly comprises a sliding block fixedly connected with the adjusting mechanism, a guide plate fixedly connected with the inner wall of the processing box is sleeved on the outer side of the sliding block, and the guide plate is provided with a guide groove for the sliding block to slide transversely; the sliding block upper end fixedly connected with chute board, the chute board is equipped with the rectangular channel, the nested post that pulls that has in the rectangular channel, pull post fixedly connected with eccentric disc, eccentric disc fixedly connected with second pivot, there is driving motor's output shaft second pivot upper end through the coupling joint.
As a further scheme of the invention: the adjusting mechanism comprises a moving frame connected with the printer head, a second moving block is fixedly connected to the upper end of the moving frame, a first mounting plate is arranged on the outer side of the second moving block, and a second sliding groove for the second moving block to transversely move is formed in the first mounting plate; a second screw rod is arranged in the second sliding groove, penetrates through the second moving block and is in threaded connection with the second moving block; the second screw rod is connected with an output shaft of a second double-shaft motor which is nested and installed in the first installation plate through a coupler.
As a further scheme of the invention: the rotating power mechanism comprises a first rotating shaft fixedly connected with the bearing disc, and the first rotating shaft is rotatably connected with the bottom plate of the processing box through a bearing seat; the first rotating shaft is connected with a motor through a coupler.
As a further scheme of the invention: the rotating power mechanism comprises a first rotating shaft fixedly connected with the bearing disc, and the first rotating shaft is connected with the opposite power mechanism through a linkage mechanism for transmission; the linkage mechanism comprises a third rotating shaft connected with the first rotating shaft through a sheave mechanism, and the third rotating shaft is rotatably connected with a base through a bearing seat; the third rotating shaft is connected with a first transmission shaft through a first transmission gear set; the first transmission shaft is connected with a second transmission shaft through a second transmission gear set, the second transmission shaft is connected with a third transmission shaft through a third transmission gear set, and the third transmission shaft is connected with the second rotating shaft through a fourth transmission gear set.
A package decoration printing and trimming device comprises the opposite direction adjusting structure.
After adopting the structure, compared with the prior art, the invention has the following advantages: the invention has the advantages that the edge-changing printing device comprises the bearing disc for clamping and driving the packing box to rotate and the printing mechanism matched with the bearing disc, the bearing disc drives the packing box to rotate and change edges, so that the edge-changing printing of the packing box is realized, the efficiency of the edge-changing printing of the packing box is improved, the structure is simple, and the number of control nodes is small; simultaneously through being equipped with including adjustment mechanism and the centre gripping subassembly of adjusting printer head interval, the centre gripping and the printing of the packing box of adaptation different specifications have better adaptability.
Drawings
Fig. 1 is a schematic view of an internal structure of the opposite direction adjustment structure.
Fig. 2 is a schematic structural view of a clamping assembly in an opposite direction adjustment structure.
FIG. 3 is a schematic diagram of a printing assembly in an opposing adjustment configuration.
FIG. 4 is a schematic view of the geneva mechanism in the opposite direction adjustment configuration.
FIG. 5 is a schematic view of a reciprocating assembly in an opposite direction adjustment structure.
Fig. 6 is a schematic structural view of a guide plate in the opposite direction adjustment structure.
In the figure: 1-a box body; 2-carrying tray; 201-a first runner; 3-clamping the plate; 4-a first moving block; 5-a first screw rod; 6-a first double shaft motor; 7-a first rotating shaft; 8-printer head; 9-a movable rack; 10-a second moving mass; 11-a first mounting plate; 1101-a second chute; 12-a slider; 13-a second screw rod; 14-a second dual shaft motor; 15-a chute plate; 1501-rectangular slot; 16-a traction column; 17-an eccentric disc; 18-a second shaft; 19-a drive motor; 20-a sheave mechanism; 21-a third rotating shaft; 22-a first drive gear set; 23-a first drive shaft; 24-a second drive gear set; 25-a second drive shaft; 26-a third drive gear set; 27-a third drive shaft; 28-a fourth drive gear set; 29-a guide plate; 2901-guide groove.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 6, in an embodiment of the present invention, an opposite direction adjustment structure includes a processing box 1; and a clamping and rotating mechanism used for clamping the packaging box and driving the packaging box to rotate and change edges and a printing mechanism matched with the clamping and rotating mechanism to print the outer surface of the packaging box are arranged in the processing box 1.
The clamping and rotating mechanism comprises a bearing plate 2, a clamping assembly and a rotating power mechanism, wherein the clamping assembly is arranged on the bearing plate 2 and used for clamping the packaging box, and the rotating power mechanism is used for driving the bearing plate 2 to rotate;
the printing mechanism comprises a printing assembly and an opposite power mechanism for driving the printing assembly to transversely move.
Specifically, a packing box is placed on the bearing plate 2 and is fixed by a clamping assembly; the subtend power unit drive prints subassembly lateral shifting, and the terminal surface prints and prints around the packing box, then, rotates power unit drive and bears dish 2 and rotate 90 degrees, and subtend power unit secondary drive prints subassembly lateral shifting, prints for the surface of the packing box of printing, accomplishes the change limit printing of packing box fast, has higher efficiency.
In another embodiment of the present invention, the clamping assembly includes a set of clamping plates 3 disposed above the carrier plate 2 and disposed oppositely, a first moving block 4 is fixedly connected to the lower side of the clamping plates 3 of the clamping assembly, and a first sliding slot 201 for the first moving block 4 to slide is disposed on the carrier plate 2; a first lead screw 5 is nested in the first sliding groove 201, and the first lead screw 5 penetrates through the first moving block 4 and is in threaded connection with the first moving block 4; the inner side of the first screw rod 5 is connected with a first double-shaft motor 6 through a coupler, and the first double-shaft motor 6 is nested in the bearing disc 2.
Specifically, the first double-shaft motor 6 drives the first lead screw 5 to rotate, the first lead screw 5 drives the first moving block 4 and the clamping plate 3 on the first moving block to move, so that the clamping plates 3 which are arranged oppositely move in opposite directions or move back to back, and then the packaging boxes of different specifications are clamped and fixed, and the packaging box clamping device has good adaptability.
In another embodiment of the present invention, the printing assembly includes a set of printer heads 8 disposed oppositely, and the printer heads 8 are not described again in detail for the prior art; an adjusting mechanism for adjusting the distance between the printer heads 8 arranged oppositely is connected above the printing assembly, the adjusting machine heads are connected with a reciprocating assembly, the reciprocating assembly comprises sliding blocks 12 fixedly connected with the adjusting mechanism, guide plates 29 fixedly connected with the inner wall of the processing box are sleeved on the outer sides of the sliding blocks 12, and the guide plates 29 are provided with guide grooves 2901 for the sliding blocks 12 to slide transversely; sliding block 12 upper end fixedly connected with chute board 15, chute board 15 is equipped with rectangular channel 1501, nested the drawing post 16 in the rectangular channel 1501, draw post 16 fixedly connected with eccentric disc 17, eccentric disc 17 fixedly connected with second pivot 18, there is driving motor 19's output shaft second pivot 18 upper end through the coupling joint.
Specifically, the driving motor 19 drives the eccentric disc 17 to rotate, the traction column 16 drives the chute plate 15 to move transversely, and the chute plate 15 drives the printing component to move transversely through the sliding block 12, so as to print the surface of the packaging box on the bearing disc 2.
In another embodiment of the present invention, the adjusting mechanism includes a moving frame 9 connected to the printer head 8, a second moving block 10 is fixedly connected to the upper end of the moving frame 9, a first mounting plate 11 is disposed on the outer side of the second moving block 10, and the first mounting plate 11 is provided with a second sliding slot 1101 for the second moving block 10 to move laterally; a second lead screw 13 is arranged in the second sliding groove 1101, and the second lead screw 13 penetrates through the second moving block 10 and is in threaded connection with the second moving block 10; the second screw rod 13 is connected with an output shaft of a second double-shaft motor 14 which is nested in the first mounting plate 11 through a coupling.
Specifically, the second double-shaft motor 14 drives the second lead screw 13 to rotate, the second lead screw 13 drives the second moving block 10 and the moving frame 9 on the second moving block to move in opposite directions or in the opposite directions, so that the distance between the printer heads 8 is adjusted, the printing of the packing boxes with different width specifications is adapted, and the printing effect is guaranteed.
In another embodiment of the present invention, the rotating power mechanism comprises a first rotating shaft 7 fixedly connected with the bearing plate 2, and the first rotating shaft 7 is rotatably connected with the bottom plate of the processing box 1 through a bearing seat; the first rotating shaft 7 is connected with a motor through a coupler.
Specifically, after the printing of terminal surface is accomplished around the packing box, the motor drives through first pivot 7 bear dish 2 rotates 90 degrees and carries out the change limit of packing box, then starts printing mechanism again and prints other two sides.
In another embodiment of the present invention, the rotational power mechanism includes a first rotating shaft 7 fixedly connected to the carrier tray 2, and the first rotating shaft 7 is connected to the opposite power mechanism through a linkage mechanism for transmission; the linkage mechanism comprises a third rotating shaft 21 connected with the first rotating shaft 7 through a sheave mechanism 20, the sheave mechanism is in the prior art, and the third rotating shaft 21 is rotatably connected with a base through a bearing seat; the third rotating shaft 21 is connected with a first transmission shaft 23 through a first transmission gear set 22, and the transmission ratio of the first transmission gear set 22 is 1 to 2; the first transmission shaft 23 is connected with a second transmission shaft 25 through a second transmission gear set 24, the second transmission shaft 25 is connected with a third transmission shaft 27 through a third transmission gear set 26, and the third transmission shaft 27 is connected with the second rotating shaft 18 through a fourth transmission gear set 28; the gear ratios of the second drive gear set 24, the third drive gear set 26 and the fourth drive gear set 28 are all 1 to 1.
Specifically, when the driving motor 19 drives the eccentric disc 17 to rotate 180 degrees, the second rotating shaft 18 drives the first rotating shaft 7 to rotate 90 degrees through the linkage mechanism, so that 90 degrees are rotated after printing of the front and rear end faces of the packing box is realized, edge changing after printing of the front and rear end faces of the packing box is realized, and then the printing component returns to the initial position again to print the unprinted surface of the packing box.
In yet another embodiment of the present invention, a package decoration printing and trimming apparatus includes the above-described opposing adjustment structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.

Claims (7)

1. An opposite direction adjusting structure comprises a processing box (1); the automatic edge changing machine is characterized in that a clamping and rotating mechanism used for clamping a packing box and driving the packing box to rotate and change edges and a printing mechanism matched with the clamping and rotating mechanism to print the outer surface of the packing box are arranged in the processing box (1);
the clamping and rotating mechanism comprises a bearing plate (2), a clamping component arranged on the bearing plate (2) and used for clamping the packing box, and a rotating power mechanism for driving the bearing plate (2) to rotate; the printing mechanism comprises a printing assembly and an opposite power mechanism for driving the printing assembly to transversely move.
2. An opposite direction adjustment structure as claimed in claim 1, wherein the clamping assembly comprises a set of clamping plates (3) oppositely disposed above the carrier plate (2), the clamping plates (3) are fixedly connected with a first moving block (4) below the clamping plates (3), and the carrier plate (2) is provided with a first sliding slot (201) for the first moving block (4) to slide; a first screw rod (5) is nested in the first sliding groove (201), and the first screw rod (5) penetrates through the first moving block (4) and is in threaded connection with the first moving block (4); the inner side of the first screw rod (5) is connected with a first double-shaft motor (6) through a coupler, and the first double-shaft motor (6) is nested in the bearing disc (2).
3. An opposite direction adjustment structure as claimed in claim 1 or 2, wherein the printing assembly comprises a set of oppositely disposed printer heads (8); an adjusting mechanism for adjusting the distance between printer heads (8) which are arranged oppositely is connected above the printing assembly, the adjusting machine heads are connected with a reciprocating assembly, the reciprocating assembly comprises sliding blocks (12) which are fixedly connected with the adjusting mechanism, guide plates (29) which are fixedly connected with the inner wall of the processing box are sleeved on the outer sides of the sliding blocks (12), and the guide plates (29) are provided with guide grooves (2901) for the sliding blocks (12) to slide transversely; sliding block (12) upper end fixedly connected with chute board (15), chute board (15) are equipped with rectangular channel (1501), nested in rectangular channel (1501) have pull post (16), pull post (16) fixedly connected with eccentric disc (17), eccentric disc (17) fixedly connected with second pivot (18), there is the output shaft of driving motor (19) second pivot (18) upper end through the coupling joint.
4. A counter adjustment structure according to claim 3, wherein the adjustment mechanism comprises a moving frame (9) connected to the printer head (8), a second moving block (10) is fixedly connected to the upper end of the moving frame (9), a first mounting plate (11) is arranged outside the second moving block (10), and the first mounting plate (11) is provided with a second sliding groove (1101) for the second moving block (10) to move transversely; a second lead screw (13) is arranged in the second sliding groove (1101), and the second lead screw (13) penetrates through the second moving block (10) and is in threaded connection with the second moving block (10); the second screw rod (13) is connected with an output shaft of a second double-shaft motor (14) which is nested and installed in the first installation plate (11) through a coupler.
5. An opposite direction adjusting structure as claimed in claim 1 or 4, wherein the rotating power mechanism comprises a first rotating shaft (7) fixedly connected with the bearing plate (2), and the first rotating shaft (7) is rotatably connected with the bottom plate of the processing box (1) through a bearing seat; the first rotating shaft (7) is connected with a motor through a coupler.
6. An opposite direction adjusting structure as claimed in claim 1 or 4, wherein the rotating power mechanism comprises a first rotating shaft (7) fixedly connected with the bearing disc (2), and the first rotating shaft (7) is connected with the opposite direction power mechanism through a linkage mechanism for transmission; the linkage mechanism comprises a third rotating shaft (21) connected with the first rotating shaft (7) through a sheave mechanism (20), and the third rotating shaft (21) is rotatably connected with a base through a bearing seat; the third rotating shaft (21) is connected with a first transmission shaft (23) through a first transmission gear set (22); first transmission shaft (23) are connected with second transmission shaft (25) through second transmission gear group (24), second transmission shaft (25) are connected with third transmission shaft (27) through third transmission gear group (26), third transmission shaft (27) through fourth transmission gear group (28) with second pivot (18) are connected.
7. A package decoration printing trimming apparatus comprising the opposing adjustment structure of any one of claims 1 to 6.
CN202011262942.9A 2020-11-12 2020-11-12 Opposite direction adjustment structure and package decoration printing edge-changing equipment Withdrawn CN112356584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011262942.9A CN112356584A (en) 2020-11-12 2020-11-12 Opposite direction adjustment structure and package decoration printing edge-changing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011262942.9A CN112356584A (en) 2020-11-12 2020-11-12 Opposite direction adjustment structure and package decoration printing edge-changing equipment

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CN112356584A true CN112356584A (en) 2021-02-12

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103786446A (en) * 2014-01-11 2014-05-14 青岛景升冷鲜食品有限公司 Quick double-faced date and batch number printer
CN105270694A (en) * 2015-11-18 2016-01-27 江苏省烟草公司无锡市公司 Side face marking device for encased cigarette packages
CN106079910A (en) * 2016-05-23 2016-11-09 合肥东彩印刷科技有限公司 A kind of carton multiaspect continuous stamp equipment
CN106739542A (en) * 2017-01-22 2017-05-31 广州市申发机电有限公司 A kind of full-automatic rapidly and efficiently surface of revolution Digital ink-jet printer
CN208084025U (en) * 2018-04-20 2018-11-13 谢继富 A kind of sanding side device of tire inner ring
CN208118717U (en) * 2018-03-13 2018-11-20 深圳市耀威镀膜科技有限公司 A kind of UV printer having curved surface printing function
CN110124930A (en) * 2019-06-24 2019-08-16 赵言 A kind of steel pipe oiling station
CN110299565A (en) * 2019-06-20 2019-10-01 亿纬新能源科技(山东)有限公司 One kind is for lithium battery assembling multi-angle rotary fixed frame
CN211730721U (en) * 2019-12-30 2020-10-23 鞍山市庆龙机电有限公司 Bearing marking device with overturning function
CN211868921U (en) * 2019-12-17 2020-11-06 蜀誉(长兴)汽车零部件有限公司 Ink jet device is used in plastic products processing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103786446A (en) * 2014-01-11 2014-05-14 青岛景升冷鲜食品有限公司 Quick double-faced date and batch number printer
CN105270694A (en) * 2015-11-18 2016-01-27 江苏省烟草公司无锡市公司 Side face marking device for encased cigarette packages
CN106079910A (en) * 2016-05-23 2016-11-09 合肥东彩印刷科技有限公司 A kind of carton multiaspect continuous stamp equipment
CN106739542A (en) * 2017-01-22 2017-05-31 广州市申发机电有限公司 A kind of full-automatic rapidly and efficiently surface of revolution Digital ink-jet printer
CN208118717U (en) * 2018-03-13 2018-11-20 深圳市耀威镀膜科技有限公司 A kind of UV printer having curved surface printing function
CN208084025U (en) * 2018-04-20 2018-11-13 谢继富 A kind of sanding side device of tire inner ring
CN110299565A (en) * 2019-06-20 2019-10-01 亿纬新能源科技(山东)有限公司 One kind is for lithium battery assembling multi-angle rotary fixed frame
CN110124930A (en) * 2019-06-24 2019-08-16 赵言 A kind of steel pipe oiling station
CN211868921U (en) * 2019-12-17 2020-11-06 蜀誉(长兴)汽车零部件有限公司 Ink jet device is used in plastic products processing
CN211730721U (en) * 2019-12-30 2020-10-23 鞍山市庆龙机电有限公司 Bearing marking device with overturning function

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Application publication date: 20210212

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