CN211730635U

CN211730635U - Holographic positioning digital thermoprinting machine

Info

Publication number: CN211730635U
Application number: CN201922428482.1U
Authority: CN
Inventors: 郑晓敏; 姚林伟; 潘中华; 吴进平; 王伟烽
Original assignee: Zhejiang Wellvast Packing Printing Products Co ltd
Current assignee: Zhejiang Wellvast Packing Printing Products Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-23
Anticipated expiration: 2029-12-30

Abstract

An object of the utility model is to provide a holographic location digital thermoprinting machine for solve the problem that exists among the prior art, including the first blowing end and the first second blowing end and the second blowing end of receiving material end and conveying thermoprint substrate of conveying thermoprint membrane, the below of thermoprint substrate is equipped with thermoprint lining platform, be equipped with the thermoprint die head between first blowing end and second blowing end, still include retaining device, the thermoprint die head is located in the retaining device, retaining device is including the holder that is used for installing the thermoprint die head and the servo system who connects the holder and drive its removal, the holder edge is equipped with a plurality of laser positioning device and laser range unit. Through this digital thermoprinting machine of holographic location, can realize (when thermoprint work and maintenance) real-time tensioning that is two-dimensional plane between thermoprint regional thermoprint membrane and thermoprint substrate, and the die head can carry out corresponding regulation according to actual thermoprint substrate position, guarantees the continuity and the uniformity of thermoprint shaping pattern.

Description

Holographic positioning digital thermoprinting machine

Technical Field

The utility model relates to a lithography apparatus technical field especially relates to a holographic location digital thermoprinting machine.

Background

At present, the hot stamping machines on the market can only stamp fixed characters and patterns, and are divided into single-sheet hot stamping (intermittent) and web hot stamping (continuous). The hot stamping machine is mainly composed of a hot stamping head (plate) for heating, a hot stamping film for discharging, a hot stamping film for receiving, a material for feeding a material to be stamped, a material for receiving the material to be stamped and the like. The working principle is that the object to be hot is positioned below and the hot stamping film is positioned above; the hot stamping film is hot-pressed by a heated hot stamping die head, an adhesive layer of the hot stamping film is melted, a pigment carrier is separated from a base film, and an image pigment is hot-pressed on the surface of an object to be stamped to form characters or patterns on a die head plate.

For example, the mechanism described in chinese patent application No. 201110293570.0 realizes a continuous hot stamping effect by arranging a variable digital hot stamping die head and a hot stamping lining table between the discharging and receiving structures at both ends, and when the mechanism is maintained, the variable digital hot stamping die head needs to be lifted for maintenance and replacement, and during the replacement and restarting, the hot stamping film and the object to be stamped may be relatively displaced due to the loss of the tensioning effect, which may cause possible changes in the direction of the printed pattern before and after the die head is maintained and replaced, or may cause the problem of deformation of the hot stamping pattern due to relative wrinkles and the like, and further may cause the failure of accurately cutting out the required pattern during subsequent cutting. This problem is more pronounced in the case of intermittent sheet stamping. And the tensioning mode that generally sets up the tensioning roller can only provide the tensioning of a dimension, can't realize the tensioning of the fold that the tensioning roller axial produced, and is difficult to adjust.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a holographic location digital thermoprinting machine for solve the problem that exists among the prior art, through this holographic location digital thermoprinting machine, can realize (when thermoprint work and maintenance) real-time tensioning that is two-dimensional plane between thermoprint area thermoprint membrane and thermoprint substrate, and the die head can carry out the regulation that corresponds according to the thermoprint substrate position of reality, guarantees thermoprint shaping pattern's continuity and uniformity.

To realize the purpose of the utility model, the utility model adopts the following technical scheme:

holographic location digital thermoprinting machine, including first blowing end and the first material end of receiving of conveying thermoprinting membrane and the second blowing end and the second material end of receiving of conveying thermoprinting substrate, the below of thermoprinting substrate is provided with the thermoprint substrate platform, is equipped with the thermoprint die head that can heat between first blowing end and the second blowing end, thermoprint substrate platform, thermoprint substrate, thermoprint membrane and thermoprint membrane head are from bottom to top setting gradually, still includes retaining device, the thermoprint die head is located in the retaining device, retaining device is including being used for the installation the holder of thermoprint die head and connecting the servo system of holder and its removal of drive, the holder edge is equipped with a plurality of laser positioning device and laser range unit.

As an optimization of the utility model, the holder edge is equipped with a plurality of holders, the holder front end stop to support in thermoprint bushing stage, the rear end articulate in the holder.

Preferably, an elastic device is disposed between the rear end of the supporting frame and the holding frame, and the elastic force provided by the elastic device acts on the supporting frame to continuously maintain the supporting frame in a state of being abutted against the hot stamping lining table.

Preferably, the holders are evenly distributed along the edge shape of the holder.

Preferably, the front end of the supporting frame is rotatably connected with a roller.

Preferably, the rollers are POM rollers.

Preferably, the holder comprises a plurality of base rods detachably connected end to end.

As the utility model discloses a preferred, two liang of connections the continuous head and the tail both ends upper surface of base rod is stopped jointly to have supported and is joined in marriage the flat board.

As an optimization of the present invention, the holder inner side is provided with a plurality of distance sensors pointing to the stamping die head.

As the utility model discloses a preferred, servo includes interconnect's triaxial servo assembly and the control unit, the control unit electric connection laser positioning device and laser rangefinder.

The beneficial effects of the utility model reside in that:

1. through the laser positioning device and the laser ranging device, the servo system can downwards determine the positions of the hot stamping base material and the hot stamping film and also can determine the position of the hot stamping film head, so that the corresponding position of the hot stamping film head is correspondingly adjusted through the servo system, high-precision positioning hot stamping capability under a higher automation level is realized, and higher output quality is realized;

2. through the elastic pressing and resisting action of the support frame, the thermoprinting base material and the thermoprinting film have good unfolded and tensioned states on the thermoprinting lining table, and the high quality of the thermoprinted pattern is ensured;

3. through setting up the holder for removable formation and cooperation join in marriage flat board, stand and distance sensor, can guarantee that its position does not change basically after maintaining the change thermoprint die head, the thermoprint substrate of treating the thermoprint below simultaneously and thermoprint membrane relative position also do not change, can be quick, accurate resume production, have higher production efficiency.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present invention;

fig. 2 is an enlarged schematic view of a position a according to a first embodiment of the present invention;

fig. 3 is a schematic top view of a part of a retainer according to a first embodiment of the present invention;

fig. 4 is a schematic side view of a second embodiment of the present invention;

the items in the figure are respectively: 11 a first discharging end, 12 a first receiving end, 13 a hot stamping film, 21 a second discharging end, 22 a second receiving end, 23 a hot stamping substrate, 3 a hot stamping die head, 4 a retainer, 41 a support frame, 42 an elastic device, 43 rollers, 44 a base rod, 45 a matching plate, 46 a distance sensor, 47 a laser positioning device, 48 a laser distance measuring device, 51 a three-axis servo assembly and 6a hot stamping lining platform.

Detailed Description

The present invention is described in detail below with reference to the attached drawings:

example one

The holographic positioning digital hot stamping machine shown in fig. 1, 2 and 3 comprises a first discharging end 11 and a first receiving end 12 for transmitting a hot stamping film 13 and a second discharging end 21 and a second receiving end 22 for transmitting a hot stamping substrate 23, which are arranged on an external frame, wherein the discharging ends and the receiving ends are driving rollers driven by a motor, and material rolls of the hot stamping film 13 and the hot stamping substrate 23 are sleeved outside the discharging ends for discharging. A hot stamping lining table 6 with a plane top is arranged below the hot stamping base material 23, a hot stamping die head 3 capable of being heated is arranged between the first discharging end 11 and the second discharging end 21, referring to fig. 1, the hot stamping lining table 6, the hot stamping base material 23, the hot stamping film 13 and the hot stamping die head 3 are sequentially arranged from bottom to top, and in the hot stamping work, the hot stamping die head 3 downwards presses the hot stamping film 13 and the hot stamping base material 23 after being heated and realizes hot stamping on the hot stamping lining table 6. The stamping die head structure further comprises a holding device, the stamping die head 3 is arranged in the holding device, the holding device comprises a holding frame 4 used for accommodating the stamping die head 3 and a servo system which is connected with the holding frame 4 and drives the holding frame 4 to move, and the servo system is also connected with the stamping die head 3 positioned in the holding frame 4. The edge of the retainer 4 is provided with a plurality of laser positioning devices 47 and laser distance measuring devices 48 in a threaded manner, the laser positioning devices 47 and the laser distance measuring devices 48 can be separate laser sensors or integrated laser sensors, when the laser positioning devices 47 work, the laser positioning devices 47 are used for positioning the position of the hot stamping film 13 so as to determine the position of a hot stamping die head, and the hot stamping film 13 can be a type which is convenient for laser positioning and has positioning color blocks or reflecting blocks and is similar to laser holographic special gravure positioning printing paper disclosed in the invention patent with the publication number of CN 101574876A; the laser distance measuring device 48 measures the distance between the holder 4 and the lower hot stamping pad 6 at these positions (the thicknesses of the hot stamping film 13 and the hot stamping base material 23 are negligible) by a plurality of devices provided around the holder 4, thereby measuring whether the holder 6 and the hot stamping die head 3 are in the horizontal state with the highest hot stamping quality as a whole. The servo system comprises a three-axis servo assembly 51 and a control unit which are connected with each other, wherein the three-axis servo assembly 51 is a three-axis gantry manipulator which is controlled by a common servo motor and accurately driven by a lead screw nut pair, so that convenient and accurate adjustment is realized. The control unit is electrically connected with the laser positioning device 47 and the laser distance measuring device 48 so as to obtain the measured information from them and drive the three-axis servo assembly 51 to perform the adjustment action of the stamping die head 3 according to the preset program or manual control. The retainer 4 in this embodiment is connected to a Z-axis mechanical arm of the three-axis servo assembly through a connecting rod, the hot stamping die heads 3 are connected through cylinders located at the lower ends of the Z-axis mechanical arm, and when the hot stamping die works, the hot stamping film 13 and the hot stamping substrate 23 are overlapped and pass through the lower portions of the hot stamping film and the hot stamping substrate, and the cylinders intermittently push out/retract the hot stamping die heads 3 to be pressed downwards at intervals to heat the hot stamping die heads and realize hot stamping. The lower surface of the hot stamping die head 3 is provided with various patterns (planar, three-dimensional and holographic patterns) which can meet the output requirement, and the hot stamping heat is provided by common heating elements such as resistance wires which are arranged on the back of the hot stamping die head and connected with an external power supply line.

In this embodiment, the holder 4 is square and is formed by combining four base rods 44 detachably connected end to end by bolts. The upper surfaces of the two connected end parts of the base rods 44 connected in pairs are commonly abutted against a right-angled L-shaped trim plate 45, and the two ends of the L-shaped trim plate 45 are respectively in threaded connection with the two ends of the end parts of the two base rods 44, so that the two ends of the two base rods 44 are kept aligned in the same plane below the two ends of the base rods 44 through the plane abutting action of the lower surfaces of the two base rods.

In this embodiment, two symmetrical supporting frames 41 are disposed on each side edge of the holding frame 4, the front ends of the supporting frames 41 are stopped against the hot stamping lining table 6, and the rear ends are hinged to the holding frame 4 through butterfly hinges. An elastic device 42 made of a torsion spring is arranged between the rear end of the support frame 41 and the support frame 4, two arms of the torsion spring respectively abut against the support frame 4 and the support frame 41 through a side flanging structure, a central ring body of the torsion spring is sleeved at the end part of a pin shaft of the butterfly hinge, and elastic force provided by the elastic device 42 acts on the support frame 41 to continuously maintain the state of abutting against the hot stamping lining table 6. Therefore, the material to be hot stamped is pressed and kept in a tensioned state under the action of elastic force all the time in the working process.

In this embodiment, the holders 41 are evenly distributed on the holder 4 along the edge shape thereof, i.e. two symmetrical per side as shown in fig. 3, and in other preferred embodiments may be other numbers evenly arranged.

In this embodiment, the roller 43 is rotatably connected to the front end of the holder 41 by a pin, and the roller 43 is disposed so that the end of the holder 41 is in rolling contact with the hot stamping film, and thus wrinkles are not caused by adjusting the operation of the hot stamping die 3.

In this embodiment, the roller 43 is a POM roller 43, and the POM is a hard and wear-resistant polymer material that can be processed to a relatively smooth surface, so that the surface roughness caused by wear and other problems during use is avoided. On one hand, the smooth surface is kept, so that the material stamped below can not be scratched; on the other hand, the friction force for maintaining contact is small, and the problem of pushing in displacement, which may be caused by high friction, is further reduced.

In this embodiment, a plurality of infrared or other similar distance sensors 46 are provided on the inside of the holder 4 and directed towards the stamping die 3. So that the replacement of the stamping die head 3 can be performed during the stamping of the same roll of stamping film 13/stamping substrate 23. In the replacing process, a space for enough operation is provided by detaching the base rod 44 on one side, the hot stamping die head 3 arranged at the tail end of the Z shaft of the three-shaft servo assembly 51 can be detached and replaced, and in the replacing process, the distance sensor 46 guides a replacing worker to conveniently adjust the installation precision by detecting the position where the hot stamping die head 3 is located and displaying a distance value through an external display device. In the whole replacement process, the support frame 41 is always kept in a state of pressing down and tensioning the stamping film 13/the stamping base material 23, so that the problem of poor production quality caused by possible dislocation between the two is avoided.

Example two

The technical solution described in the second embodiment is similar to that of the first embodiment, and the difference is that:

as shown in fig. 4, the stamping die head 3 in the second embodiment is a roller type die head for continuous stamping, which is directly connected to the lower end of the Z axis of the three-axis servo assembly 51 through a bearing frame connecting two ends thereof, and one side of the die head is also coupled and connected with a driving motor fixedly connected to the bearing frame and driven by the driving motor. When the three-axis servo assembly 51 works, the Z axis moves downwards to the lower end of the hot stamping die head to be tangent to the hot stamping lining table 6, and then the three-axis servo assembly starts to work, and the rotating speed (edge linear speed) of the three-axis servo assembly is controlled to be the same as the linear speed of each discharging end and each receiving end, so that stable hot stamping operation can be realized.

The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the various modifications and improvements made by the ordinary person in the art without departing from the design concept of the present invention all fall into the protection scope of the present invention.

Claims

1. A holographic positioning digital hot stamping machine comprises a first discharging end (11) and a first receiving end (12) for transmitting a hot stamping film (13) and a second discharging end (21) and a second receiving end (22) for transmitting a hot stamping base material (23), a hot stamping lining table (6) is arranged below the hot stamping base material (23), a hot stamping die head (3) capable of being heated is arranged between the first discharging end (11) and the second discharging end (21), the hot stamping lining table (6), the hot stamping base material (23), the hot stamping film (13) and the hot stamping die head (3) are arranged in sequence from bottom to top, characterized by also comprising a holding device, wherein the hot stamping die head (3) is arranged in the holding device, the holding device comprises a holder (4) for accommodating the hot stamping die head (3) and a servo system which is connected with the holder (4) and drives the holder to move, the edge of the retainer (4) is provided with a plurality of laser positioning devices (47) and laser distance measuring devices (48).

2. Holographic positioning digital thermoprinting machine according to claim 1, characterized in that said holding frame (4) is provided at its edge with a plurality of holders (41), said holders (41) being such that their front ends are stopped against said thermoprinting table (6) and their rear ends are hinged to said holding frame (4).

3. The holographic positioning digital hot stamping machine according to claim 2, characterized in that an elastic device (42) is arranged between the rear end of the supporting frame (41) and the holding frame (4), and the elastic force provided by the elastic device (42) acts on the supporting frame (41) to keep the supporting frame continuously in a state of being stopped against the hot stamping lining table (6).

4. Holographic positioning digital thermoprinting machine according to claim 3, characterized in that said holders (41) are uniformly distributed on said holding frame (4) along its edge shape.

5. Holographic positioning digital thermoprinting machine according to claim 3, characterized in that said support (41) is rotatably connected with a roller (43) at its front end.

6. Holographic positioning digital thermoprinting machine according to claim 5, characterized in that said rollers (43) are POM rollers (43).

7. Holographic positioning digital thermoprinting machine according to claim 2, characterized in that said holder (4) comprises a plurality of base bars (44) detachably connected end to end.

8. The holographic positioning digital hot stamping machine as claimed in claim 7, wherein the upper surfaces of the connected head and tail ends of the base rods (44) connected in pairs are commonly prevented from abutting against the matching flat plate (45).

9. Holographic positioning digital thermoprinting machine according to claim 1, characterized in that inside said holder (4) there are provided a plurality of distance sensors (46) directed towards said thermoprinting die head (3).

10. Holographic positioning digital thermoprinting machine according to claim 1, characterized in that said servo system comprises a three-axis servo assembly (51) and a control unit connected to each other, said control unit electrically connecting said laser positioning device (47) and laser ranging device (48).