CN212555255U - Flat embossing device that flattens - Google Patents
Flat embossing device that flattens Download PDFInfo
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- CN212555255U CN212555255U CN202020954635.6U CN202020954635U CN212555255U CN 212555255 U CN212555255 U CN 212555255U CN 202020954635 U CN202020954635 U CN 202020954635U CN 212555255 U CN212555255 U CN 212555255U
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Abstract
The utility model provides a flat pressing embossing apparatus, includes frame, bottom plate and impressed watermark subassembly, and bottom plate fixed mounting is in the frame, and the impressed watermark subassembly is located the bottom plate directly over, its characterized in that: the flat pressing and embossing device further comprises an upper air blowing device, and the upper air blowing device comprises a first air supply device and a first air conveying pipe; the mother plate comprises an embossing working area with concave-convex grains on the lower surface and a blank area with a flat lower surface, and at least one air outlet through hole is formed in the blank area of the mother plate; the air supply port of the first air supply device is communicated with the air inlet end of the first air conveying pipe, and the openings at the upper ends of the air outlet through holes are communicated with the air outlet end of the first air conveying pipe. The utility model discloses when accomplishing after the impressed watermark shaping need make paper and mother set separation, utilize the gas that enters into between paper and the mother set lower surface, break the vacuum state between paper and the mother set lower surface to paper and mother set separate smoothly, are favorable to improving the product percent of pass and ensure going on smoothly of production.
Description
Technical Field
The utility model relates to a lithography apparatus, concretely relates to flat pressing embossing apparatus.
Background
The embossing process is that the pattern on the mother plate is embossed on the paper under large pressure and certain temperature, and the special picture and text surface modification effect with concave-convex stereoscopic impression is formed on the surface of the printed matter through pressure and temperature physical molding, particularly the deep embossing process has very strong stereoscopic impression. The embossing process can achieve the surface modification effect of the printed matter, does not cause environmental pollution, and does not need related consumables, so that the embossing process is a process very suitable for the surface modification of the printed matter along with the increasing environmental protection requirement.
However, such a good process is not very good for popularization in the printing and packaging industry at present, and the reason is that most of the existing embossing devices are in a flat pressing mode, namely, the whole master plate layout is pressed down simultaneously, the master plate layout is in surface contact with paper, a three-dimensional pattern effect is formed through physical deformation, the lines of the embossing devices need a certain depth, a certain area occupation ratio relative to the paper is needed, the paper surface can be seen well, and when embossing is carried out, the paper and the master plate are basically in a vacuum state under the action of temperature and pressure during embossing forming, so that the paper is not easy to separate from the master plate after the embossing is finished, the paper is often torn, a large number of unqualified products are produced, even normal production cannot be carried out due to the fact that some automatic production equipment cannot carry out continuously, and waste during production is large, forming a difficult problem in the industry.
Disclosure of Invention
The utility model aims to solve the technical problem that a flat pressing embossing apparatus is provided, this kind of flat pressing embossing apparatus can ensure to separate smoothly paper and mother set after accomplishing the impressed watermark shaping, is favorable to improving the product percent of pass and ensures going on smoothly of production. The technical scheme is as follows:
the utility model provides a flat pressing embossing device, includes frame, bottom plate and impressed watermark subassembly, and bottom plate fixed mounting is in the frame, and the impressed watermark subassembly is in directly over the bottom plate, and the impressed watermark subassembly includes the mother set and can be to the heating device of mother set heating, is equipped with the impressed watermark subassembly elevating system that can drive the impressed watermark subassembly and go up and down in the frame, its characterized in that: the flat pressing and embossing device further comprises an upper air blowing device, and the upper air blowing device comprises a first air supply device and a first air conveying pipe; the mother plate comprises an embossing working area with concave-convex grains on the lower surface and a blank area with a flat lower surface, at least one air outlet through hole is arranged on the blank area of the mother plate, the upper end of the air outlet through hole is opened on the upper surface of the mother plate, and the lower end of the air outlet through hole is opened on the lower surface of the mother plate; the air supply port of the first air supply device is communicated with the air inlet end of the first air conveying pipe, and the openings at the upper ends of the air outlet through holes are communicated with the air outlet end of the first air conveying pipe.
In general, a paper conveying device is provided on the frame to convey the paper to be embossed forward to the base plate and convey the embossed paper backward.
When the flat pressing embossing device works, the heating device provides heat for the master plate, so that the master plate reaches the temperature required by embossing molding; the paper conveying device conveys the paper to be embossed forwards to the bottom plate, and the bottom plate provides support for the paper; then the embossing assembly lifting mechanism drives the embossing assembly to descend, the master plate is pressed down and is in contact with the paper, and the paper and the master plate complete embossing molding under the action of temperature and pressure; when the paper needs to be separated from the master plate after embossing forming is completed, the embossing assembly lifting mechanism drives the embossing assembly to ascend, meanwhile, the upper air blowing device provides downward air flow for the air outlet through holes, the air outlet through holes blow air towards the paper, the air enters between the paper and the lower surface of the master plate, the vacuum state between the paper and the lower surface of the master plate is broken, and therefore the paper and the master plate are smoothly separated.
When the paper and the mother set are subjected to embossing molding under the action of temperature and pressure, the flat pressing and embossing device is in a pressing state (air between the paper and the mother set is extruded out in the pressing state and basically in a vacuum state); when the embossing assembly lifting mechanism drives the embossing assembly to ascend, the flat pressing embossing device is in a releasing state. The upper air blowing device is only opened for air blowing in the process from pressing to pressing, and is closed at other time, downward air flow is not provided for the air outlet through holes, and the air outlet through holes do not blow air, so that the paper transmission and the embossing forming are not influenced.
Most of the paper (for example, the paper used for making the packing boxes of cigarette cases, medicine cases and the like) is mostly printed in a way that small plates are combined into large plates in actual production, that is, when embossing is carried out, a plurality of packing box units are embossed by one master plate, so that certain gaps are generated at the connecting parts between the packing box units, and the gaps do not need to be embossed. In addition, each packing box unit comprises a plurality of rubberizing parts for rubberizing in the subsequent process, and the rubberizing parts do not need to be embossed. Therefore, the vent holes are formed in the positions (namely blank areas) of the master plate corresponding to the positions which do not need embossing, and the quality of lines formed after embossing is not affected.
In a preferable scheme, a first electromagnetic switch valve used for controlling the on-off of the first air conveying pipe is arranged on the first air conveying pipe. The first electromagnetic switch valve is usually controlled by a controller, and is opened for blowing only in the process that the flat pressing and flat embossing device is pressed to be pressed away, and is in a closed state at other times.
Usually, the blank area of the master plate is provided with a plurality of air outlet through holes which are distributed on the master plate more uniformly, so that the vacuum state between the paper and the lower surface of the master plate can be broken more quickly.
In a preferred scheme, the upper blowing device further comprises at least one branch pipe, the number of the branch pipes is the same as that of the air outlet through holes, the branch pipes correspond to the air outlet through holes one by one, and openings in the upper ends of the air outlet through holes are communicated with the air outlet end of the first air conveying pipe through the corresponding branch pipes.
In another preferred scheme, the upper blowing device further comprises an air supply cover body, the air supply cover body is arranged on the mother plate, openings at the upper ends of the air outlet through holes are communicated with the cavity of the air supply cover body, and the air outlet end of the first air conveying pipe is communicated with the cavity of the air supply cover body.
In a preferred scheme, the heating device comprises a heating plate, an electric heating element (such as an electric heating tube) is arranged in the heating plate, and the heating plate is tightly contacted with the upper surface of the master plate.
Generally, the master plate is made of stainless steel or nickel, and has good heat conducting property. In a more preferable scheme, the heating device further comprises a temperature sensor for detecting the temperature of the master plate or the heating plate. The temperature sensor detects the temperature of the mother board or the heating plate (the mother board has good heat conducting property and can rapidly reach the temperature consistent with the heating plate, so the temperature of the mother board can be accurately reflected by detecting the temperature of the heating plate), and transmits a temperature signal to the controller, and the controller controls the current on-off of the electric heating element (the detected temperature is lower than the temperature reference value, the electric heating element is electrified, otherwise, the electric heating element is powered off) according to the received temperature signal and after being compared with the temperature reference value, thereby realizing the control of the temperature of the mother board and keeping the temperature of the mother board in a required range.
The embossing assembly lifting mechanism can adopt a conventional lifting mechanism, such as: the embossing assembly lifting mechanism comprises an embossing assembly lifting cylinder, a cylinder body of the embossing assembly lifting cylinder is installed on the rack, and a piston rod of the embossing assembly lifting cylinder faces downwards and is connected with the embossing assembly. In addition, the embossing assembly lifting cylinder can be replaced by a hydraulic cylinder. The embossing assembly lifting mechanism can also adopt a lifting mechanism formed by combining a motor with a nut/screw rod, or a lifting mechanism formed by combining a motor with a slider-crank mechanism or a cam mechanism. In addition, a plurality of guide columns which move up and down can be arranged on the rack, guide sleeves with corresponding quantity are arranged on the embossing assembly, the guide sleeves are respectively sleeved on the guide columns, the embossing assembly is more stably lifted and lowered by utilizing the matching of the guide sleeves and the guide columns, and the embossing assembly is accurately embossed on paper.
In a preferred scheme, a plurality of high-resilience sponge blocks are arranged on the lower surface of the blank area of the master mask. When the embossing is pressed, the high resilience sponge blocks are compressed, and when the embossing is released, the high resilience sponge blocks rebound, so that the paper can be smoothly separated from the master plate.
In the preferred scheme, the rack is also provided with a rear blowing device capable of blowing forward, and the rear blowing device is arranged on the rear side of the bottom plate. Through setting up the back air-blowing device, blow to the laminating portion between paper and the mother set after accomplishing the impressed watermark shaping, with the cooperation of the through-hole of giving vent to anger on the mother set, can open the vacuum state between paper and the mother set more fast, further ensure paper and the smooth separation of mother set for the separating rate.
In a more preferable scheme, the rear blowing device comprises a second air supply device, a second air delivery pipe and a blowing pipe arranged transversely, and the front side wall of the blowing pipe is provided with at least one second air outlet through hole (the second air outlet through holes are usually provided with a plurality of air outlet through holes); the air inlet end of the second air conveying pipe is communicated with the air supply port of the second air supply device, and the air outlet end of the second air conveying pipe is communicated with the cavity of the air blowing pipe. Preferably, the second air delivery pipe is provided with a second electromagnetic switch valve for controlling the on-off of the second air delivery pipe. The second electromagnetic switch valve is usually controlled by a controller, and is opened for blowing only in the process that the flat pressing and flat embossing device is pressed to be pressed away, and is in a closed state at other times.
In another more preferable scheme, the rear blowing device comprises a second air supply device, a second air delivery pipe and at least one air nozzle (the air nozzle is usually provided with a plurality of air nozzles, and the air nozzles are arranged transversely), and the blowing opening of each air nozzle faces forwards; the air inlet end of the second air conveying pipe is communicated with the air supply port of the second air supply device, and each air nozzle is communicated with the air outlet end of the second air conveying pipe. Preferably, the second air delivery pipe is provided with a second electromagnetic switch valve for controlling the on-off of the second air delivery pipe.
In addition, the first air supply device and the second air supply device can be the same air supply device, the air inlet end of the first air conveying pipe and the air inlet end of the second air conveying pipe are communicated with the air supply port of the air supply device through an air conveying main pipe, and an electromagnetic switch valve is arranged on the air conveying main pipe.
The utility model discloses a set up gas blowing device and give vent to anger the through-hole, when accomplishing after the impressed watermark shaping and need making paper and mother set separation, go up gas blowing device and provide downward air current for respectively giving vent to anger the through-hole, respectively give vent to anger the through-hole and blow towards the paper, gas enters into between paper and the mother set lower surface, breaks the vacuum state between paper and the mother set lower surface to paper and the smooth separation of mother set are favorable to improving the product percent of pass and ensure going on smoothly of production.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a bottom view of the master of FIG. 1;
figure 3 is a view in the direction of A of the insufflation tube of figure 1.
Detailed Description
As shown in fig. 1 and 2, the flat embossing press includes a frame 1, a base plate 2, an embossing unit 3, and an upper air blowing unit 4. The embossing machine comprises a frame 1, a base plate 2, an embossing assembly 3, a heating device and an embossing assembly lifting mechanism, wherein the base plate 2 is fixedly installed on the frame 1, the embossing assembly 3 is located right above the base plate 1, the embossing assembly 3 comprises a mother plate 31 and the heating device capable of heating the mother plate 31, and the frame 1 is provided with the embossing assembly lifting mechanism capable of driving the embossing assembly 3 to lift (the embossing assembly lifting mechanism is not shown in the attached drawings). The heating device comprises a heating plate 32, an electric heating element 33 (such as an electric heating tube) is arranged in the heating plate 32, and the heating plate 32 is tightly contacted with the upper surface of the master plate 31. The heating device further comprises a temperature sensor 34 for detecting the temperature of the master 31 or the heating plate 32. The upper air blowing device 4 comprises a first air supply device 41 and a first air conveying pipe 42; the mother plate 31 comprises an embossing working area 311 with concave-convex grains on the lower surface and a blank area 312 with a flat lower surface, a plurality of air outlet through holes 313 are arranged on the blank area 312 of the mother plate 31, the upper ends of the air outlet through holes 313 are opened on the upper surface of the mother plate 1, and the lower ends of the air outlet through holes 313 are opened on the lower surface of the mother plate 31; the air supply port of the first air supply device 41 communicates with the air inlet end of the first air delivery pipe 42, and the openings at the upper ends of the air outlet through holes 313 communicate with the air outlet end of the first air delivery pipe 42. The first air delivery pipe 42 is provided with a first electromagnetic switch valve 43 for controlling the on-off of the first air delivery pipe 42. The master 31 is made of stainless steel (which may be etched to form the desired relief in its lower surface).
In this embodiment, the upper blowing device 4 further includes a plurality of branch pipes 44, the number of the branch pipes 44 is the same as that of the air outlet through holes 313, and the branch pipes 44 correspond to the air outlet through holes 313 one by one, and the openings at the upper ends of the air outlet through holes 313 are respectively communicated with the air outlet ends of the first air pipes 42 through the branch pipes 44.
The heating plate 32 may be a honeycomb plate having a plurality of through holes distributed thereon, and the gaps of the through holes may be used for mounting the temperature sensors 34 and the respective branch pipes 44.
A plurality of high resilience sponge blocks 5 are arranged on the lower surface of the blank area 312 of the master 31.
The embossing assembly lift mechanism may employ a conventional lift mechanism, such as: the embossing assembly lifting mechanism comprises an embossing assembly lifting cylinder, a cylinder body of the embossing assembly lifting cylinder is installed on the rack, and a piston rod of the embossing assembly lifting cylinder faces downwards and is connected with the embossing assembly. In addition, the embossing assembly lifting cylinder can be replaced by a hydraulic cylinder. The embossing assembly lifting mechanism can also adopt a lifting mechanism formed by combining a motor with a nut/screw rod, or a lifting mechanism formed by combining a motor with a slider-crank mechanism or a cam mechanism. In addition, a plurality of guide columns which move up and down can be arranged on the rack, guide sleeves with corresponding quantity are arranged on the embossing assembly, the guide sleeves are respectively sleeved on the guide columns, the embossing assembly is more stably lifted and lowered by utilizing the matching of the guide sleeves and the guide columns, and the embossing assembly is accurately embossed on paper.
In this embodiment, the frame 1 is further provided with a rear blowing device 6 capable of blowing forward, and the rear blowing device 6 is disposed at the rear side of the bottom plate 2. Referring to fig. 1 and 3, in the present embodiment, the rear blowing device 6 includes a second air supply device 61, a second air pipe 62 and a blowing pipe 63 arranged transversely, and a plurality of second air outlet through holes 64 are arranged on the front side wall of the blowing pipe 63; the air inlet end of the second air pipe 62 is communicated with the air supply port of the second air supply device 61, and the air outlet end of the second air pipe 62 is communicated with the cavity of the air blowing pipe 63 (one end of the air blowing pipe 63 can be communicated with the air outlet end of the second air pipe 62, and the other end of the air blowing pipe 63 is closed). The second air pipe 62 is provided with a second electromagnetic switch valve 65 for controlling the on-off of the second air pipe 62.
The frame 1 is provided with a paper conveying device which can convey paper to be embossed forwards to the bottom plate 2 and convey the embossed paper backwards. The paper conveying device can comprise a feeder, a front paper conveying table, a front paper gripping tooth row and a rear paper gripping tooth row, the feeder, the front paper conveying table, the front paper gripping tooth row, a bottom plate and the rear paper gripping tooth row are sequentially arranged from front to back, the feeder can convey paper in a stacked paper to the front paper conveying table one by one, a front gauge and a side gauge used for positioning the paper are arranged on the front paper conveying table, the front paper gripping tooth row forwards conveys the paper positioned on the front paper conveying table to the bottom plate, and the rear paper gripping tooth row backwards conveys the paper subjected to embossing forming (namely, the paper is taken out from the bottom plate and backwards conveyed). The blow pipe 63 in the rear blowing device 6 may be disposed above the rear gripper bar 7.
The working principle of the flat pressing and embossing device is briefly described as follows:
when the embossing device works, the heating device provides heat for the master plate 31, so that the master plate 31 reaches the temperature required by embossing; the temperature sensor 34 detects the temperature of the master 31 or the heating plate 32 and transmits a temperature signal to the controller, and the controller controls the on-off of the current of the electric heating element 33 (the detected temperature is lower than the temperature reference value, the electric heating element 33 is powered on, otherwise, the electric heating element 33 is powered off) after comparing the received temperature signal with the temperature reference value, so that the temperature of the master 31 is controlled, and the temperature of the master 31 is kept in a required range.
The paper conveying device conveys the paper 8 to be embossed forwards to the bottom plate 2, and the bottom plate 2 provides support for the paper 8; then the embossing assembly lifting mechanism drives the embossing assembly 3 to descend, the master plate 31 presses down and contacts with the paper 8, and the paper 8 and the master plate 31 complete embossing under the action of temperature and pressure (a pressing state, in which air between the paper 8 and the master plate 31 is extruded out and basically in a vacuum state); when the paper 8 needs to be separated from the mother plate 31 after embossing, the embossing assembly lifting mechanism drives the embossing assembly 3 to ascend (in a pressure-leaving state), meanwhile, the upper air blowing device 4 provides downward air flow for the air outlet through holes 313, the air outlet through holes 313 blow air towards the paper 8, the air enters between the paper 8 and the lower surface of the mother plate 31, the vacuum state between the paper 8 and the lower surface of the mother plate 31 is broken, and therefore the paper 8 and the mother plate 31 are smoothly separated. The upper air blowing device 4 is only opened for air blowing in the process that the flat pressing and embossing device is pressed from on to off, and is in a closed state at other time, downward air flow is not provided for the air outlet through holes 313, air blowing is not performed for the air outlet through holes 313, and paper transmission and embossing forming are not affected.
The first electromagnetic switch valve 43 controls the on-off of the first air conveying pipe 42, the first electromagnetic switch valve 43 is controlled by the controller, the first electromagnetic switch valve 43 is opened for blowing only in the process that the flat pressing flat embossing device is pressed from the closing state to the releasing state, and the first electromagnetic switch valve 43 is in the closing state at other times.
After the embossing is completed, the rear blowing device 6 blows air to the joint part between the paper 8 and the mother plate 31, and the vacuum state between the paper 8 and the mother plate 31 can be opened more quickly by matching with the air outlet through holes 313 on the mother plate 31.
The second electromagnetic switch valve 65 controls the on-off of the second air conveying pipe 62, the second electromagnetic switch valve 65 is controlled by the controller, the second electromagnetic switch valve 65 is opened for blowing only when the flat pressing and flat embossing device is pressed from the closed state to the open state, and the second electromagnetic switch valve 65 is in the closed state at other times.
In other embodiments, the upper blowing device may also include an air supply cover body, the air supply cover body is mounted on the master plate, the openings at the upper ends of the air outlet through holes are communicated with the cavity of the air supply cover body, and the air outlet end of the first air pipe is communicated with the cavity of the air supply cover body.
In other embodiments, the rear blowing device can also comprise a second air supply device, a second air conveying pipe and at least one air nozzle which is transversely arranged, and the blowing opening of each air nozzle faces forwards; the air inlet end of the second air conveying pipe is communicated with the air supply port of the second air supply device, and each air nozzle is communicated with the air outlet end of the second air conveying pipe.
In other embodiments, the first air supply device and the second air supply device can be the same air supply device, the air inlet end of the first air conveying pipe and the air inlet end of the second air conveying pipe are communicated with the air supply port of the air supply device through an air conveying main pipe, and an electromagnetic switch valve is arranged on the air conveying main pipe, so that the on-off of the first air conveying pipe and the second air conveying pipe is controlled by the electromagnetic switch valve, and the structure can be simplified.
Claims (10)
1. The utility model provides a flat pressing embossing device, includes frame, bottom plate and impressed watermark subassembly, and bottom plate fixed mounting is in the frame, and the impressed watermark subassembly is in directly over the bottom plate, and the impressed watermark subassembly includes the mother set and can be to the heating device of mother set heating, is equipped with the impressed watermark subassembly elevating system that can drive the impressed watermark subassembly and go up and down in the frame, its characterized in that: the flat pressing and embossing device further comprises an upper air blowing device, and the upper air blowing device comprises a first air supply device and a first air conveying pipe; the mother plate comprises an embossing working area with concave-convex grains on the lower surface and a blank area with a flat lower surface, at least one air outlet through hole is arranged on the blank area of the mother plate, the upper end of the air outlet through hole is opened on the upper surface of the mother plate, and the lower end of the air outlet through hole is opened on the lower surface of the mother plate; the air supply port of the first air supply device is communicated with the air inlet end of the first air conveying pipe, and the openings at the upper ends of the air outlet through holes are communicated with the air outlet end of the first air conveying pipe.
2. The platen embossing apparatus of claim 1, wherein: and the first air delivery pipe is provided with a first electromagnetic switch valve for controlling the on-off of the first air delivery pipe.
3. The platen embossing apparatus of claim 1, wherein: the upper blowing device further comprises at least one branch pipe, the number of the branch pipes is the same as that of the air outlet through holes, the branch pipes correspond to the air outlet through holes one by one, and openings in the upper ends of the air outlet through holes are communicated with the air outlet end of the first air conveying pipe through the corresponding branch pipes.
4. The platen embossing apparatus of claim 1, wherein: the upper blowing device further comprises an air supply cover body, the air supply cover body is arranged on the mother plate, openings at the upper ends of the air outlet through holes are communicated with the cavity of the air supply cover body, and the air outlet end of the first air conveying pipe is communicated with the cavity of the air supply cover body.
5. The platen embossing apparatus of claim 1, wherein: the heating device comprises a heating plate, an electric heating element is arranged in the heating plate, and the heating plate is in close contact with the upper surface of the master plate.
6. The platen embossing apparatus of claim 5, wherein: the master plate is made of stainless steel or nickel; the heating device also comprises a temperature sensor for detecting the temperature of the master plate or the heating plate.
7. The platen embossing apparatus of claim 1, wherein: and a plurality of high resilience sponge blocks are arranged on the lower surface of the blank area of the master mask.
8. The platen embossing apparatus as set forth in any one of claims 1 to 7, wherein: the rack is also provided with a rear blowing device capable of blowing forward, and the rear blowing device is arranged at the rear side of the bottom plate.
9. The platen embossing apparatus of claim 8, wherein: the rear blowing device comprises a second air supply device, a second air conveying pipe and a blowing pipe arranged transversely, and at least one second air outlet through hole is formed in the front side wall of the blowing pipe; the air inlet end of the second air conveying pipe is communicated with the air supply port of the second air supply device, and the air outlet end of the second air conveying pipe is communicated with the cavity of the air blowing pipe; and a second electromagnetic switch valve for controlling the on-off of the second gas conveying pipe is arranged on the second gas conveying pipe.
10. The platen embossing apparatus of claim 8, wherein: the rear blowing device comprises a second air supply device, a second air delivery pipe and at least one air nozzle, and the blowing port of each air nozzle faces forwards; the air inlet end of the second air conveying pipe is communicated with the air supply port of the second air supply device, and each air nozzle is communicated with the air outlet end of the second air conveying pipe; the second air delivery pipe is provided with a second electromagnetic switch valve for controlling the on-off of the second air delivery pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020954635.6U CN212555255U (en) | 2020-05-30 | 2020-05-30 | Flat embossing device that flattens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020954635.6U CN212555255U (en) | 2020-05-30 | 2020-05-30 | Flat embossing device that flattens |
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| Publication Number | Publication Date |
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| CN212555255U true CN212555255U (en) | 2021-02-19 |
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| CN202020954635.6U Active CN212555255U (en) | 2020-05-30 | 2020-05-30 | Flat embossing device that flattens |
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| CN (1) | CN212555255U (en) |
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