CN209953763U - Pneumatic magnetic strip pressing device - Google Patents
Pneumatic magnetic strip pressing device Download PDFInfo
- Publication number
- CN209953763U CN209953763U CN201920129058.4U CN201920129058U CN209953763U CN 209953763 U CN209953763 U CN 209953763U CN 201920129058 U CN201920129058 U CN 201920129058U CN 209953763 U CN209953763 U CN 209953763U
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- Prior art keywords
- magnetic stripe
- pressing
- fixed
- limiting
- roller shaft
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- 238000003825 pressing Methods 0.000 title claims abstract description 110
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 210000004907 gland Anatomy 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a pneumatic magnetic stripe pressing device, which is used for positioning and loading a magnetic stripe on an injection limiting rod, and comprises an operation platform, and an air cylinder mechanism, at least one group of magnetic stripe pressing mechanisms and a linkage structure which are arranged on the operation platform, wherein the air cylinder mechanism comprises an air cylinder with a piston rod, the linkage structure is provided with a plurality of mounting holes, and the injection limiting rod and the piston rod are arranged in the mounting holes; the magnetic stripe pressing mechanism is used for bearing the injection limiting rod and pressing the magnetic stripe into the groove of the injection limiting rod; the air cylinder mechanism provides power for the magnetic stripe pressing mechanism and drives the injection limiting rod in the magnetic stripe pressing mechanism to move forwards or backwards through the linkage structure. The utility model transmits power through the cylinder without manual pulling, the transmission output is stable, and the product quality is stable; the fixing mode is reliable, the position accuracy of the magnetic pressing strip is guaranteed, the device is durable, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to a die casting machine technical field especially relates to a pneumatic pressure magnetic stripe device.
Background
The magnetic strips of injection limiting rods in the die casting machine industry are generally installed manually or pressed by simple manufacturing devices, and the installation methods have the following defects:
firstly, the magnetic strips can only be flatly placed in the grooves in manual installation, and the magnetic strips are easy to fall off in later use due to the fact that the magnetic strips cannot be compressed, time is consumed, and cost is increased;
secondly, the simple magnetic strip pressing device is easy to swing, and the quality is not high due to the fact that the simple magnetic strip pressing device is easy to press and deviate in the pressing process; the pressing by human pulling may result in significant differences in the pressed products and unstable quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pneumatic pressure magnetic stripe device is in order to solve above-mentioned technical problem.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
a pneumatic magnetic stripe pressing device is used for positioning and loading a magnetic stripe on an injection limiting rod and comprises an operating platform, and an air cylinder mechanism, at least one group of magnetic stripe pressing mechanisms and a linkage structure which are arranged on the operating platform, wherein the air cylinder mechanism comprises an air cylinder with a piston rod, the linkage structure is provided with a plurality of mounting holes, and the injection limiting rod and the piston rod are arranged in the mounting holes; the magnetic stripe pressing mechanism is used for bearing the injection limiting rod and pressing the magnetic stripe into a groove of the injection limiting rod; the air cylinder mechanism provides power for the magnetic stripe pressing mechanism and drives the injection limiting rod in the magnetic stripe pressing mechanism to move forwards or backwards through the linkage structure.
Preferably, when the number of the groups of the magnetic stripe pressing mechanisms is even, the magnetic stripe pressing mechanisms are evenly distributed on two sides of the air cylinder mechanism.
Preferably, the magnetic stripe pressing mechanism comprises a fixed seat, at least one fixed roller shaft, two sliding blocks and a pressing roller shaft, the fixed seat is of a U-shaped structure formed by a base and side plates connected to two sides of the base, rectangular holes with openings from the top ends of the side plates are formed in the upper portions of the side plates, shaft holes are formed in the lower portions of the side plates, two ends of the fixed roller shaft are respectively fixed in the shaft holes of the two side plates, two ends of the fixed roller shaft are respectively connected with a fixed roller adjusting structure, two ends of the pressing roller shaft are respectively connected with the two sliding blocks, and the two sliding blocks are respectively fixed in the rectangular holes of the two side plates.
Preferably, the fixed roller adjusting structure comprises a first bearing and a gland, two ends of the bearing are respectively connected with the end part of the fixed roller shaft and the gland, and the fixed roller shaft is stably rotated through the support of the first bearing and the limit of the gland.
Preferably, one end of the sliding block is fixed at the end part of the pressing roller shaft, the other end of the sliding block is connected with an adjusting pressure plate through a second bearing, and the adjusting pressure plate realizes the left-right fixation of the pressing roller shaft through a pressing screw.
Preferably, the device further comprises a pressing plate, the pressing plate is fixed above the fixed seat and the sliding block, and the pressing plate realizes the up-and-down fixation of the pressing roller shaft through a pressing screw.
Preferably, the cylinder mechanism further comprises an air inlet pipe, a switching power supply, a selection switch, an electromagnetic valve, a throttle valve and a filtering pressure reducing valve, wherein two output ends of the electromagnetic valve are connected to a front cavity and a rear cavity in the cylinder through the throttle valve respectively, an input end of the electromagnetic valve is connected with the air inlet pipe through the filtering pressure reducing valve, the selection switch is electrically connected with the switching power supply and the electromagnetic valve respectively, and the selection switch controls the piston rod in the cylinder to move forwards or backwards through the switches at the two output ends of the electromagnetic valve.
Preferably, a muffler is connected to the solenoid valve.
Preferably, when only one side of the two sides of the air cylinder mechanism is provided with the magnetic stripe pressing mechanism, the other side of the air cylinder mechanism is provided with the guide mechanism, and the guide mechanism is used for maintaining stable operation.
Preferably, the guide mechanism comprises a cushion block, a limiting seat and a guide rod, the limiting seat is fixed on the cushion block, a through hole is formed in the limiting seat, the guide rod penetrates through the through hole of the limiting seat and is fixed through a front limiting structure and a rear limiting structure, and the front end of the guide rod is fixed in a mounting hole of the linkage structure.
Preferably, the rear end of the guide rod is sleeved with a limiting protective cover, the limiting structure comprises a copper sleeve and a copper sleeve gland, the two copper sleeves are respectively sleeved on the part of the guide rod penetrating into and penetrating out of the limiting seat, two ends of the copper sleeve are respectively connected with the limiting seat and the copper sleeve gland, and the copper sleeve gland at the rear end of the guide rod is fixedly connected with the limiting protective cover.
Preferably, the device further comprises a protective cover with an opening at the lower end, the edge of the protective cover is fixed on the operating platform, and the air cylinder mechanism and the guide mechanism are arranged in the protective cover.
Compared with the prior art, the utility model transmits power through the cylinder, does not need manual pulling, and has stable transmission output and stable product quality; the fixing mode is reliable, the position accuracy of the magnetic pressing strip is guaranteed, the device is durable, and the working efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the pneumatic magnetic stripe pressing device of the present invention;
FIG. 2 is a schematic structural view of the pneumatic bar magnet pressing device of the present invention for removing the protective cover;
fig. 3 is a schematic view of an explosion structure of the magnetic stripe pressing mechanism in the pneumatic magnetic stripe pressing device of the present invention;
FIG. 4 is a gas circuit diagram of the cylinder mechanism in the pneumatic bar magnet pressing device of the present invention;
fig. 5 is a schematic structural diagram of a guiding mechanism in the pneumatic magnetic stripe pressing device of the present invention;
in the figure, 1-magnetic strip pressing mechanism, 2-air cylinder mechanism, 3-linkage mechanism, 4-guide mechanism, 5-operating platform, 6-injection limiting rod, 7-magnetic strip, 8-protective cover, 101-fixed seat, 102-pressing plate, 103-pressing roller shaft, 104-fixed roller shaft, 105-first bearing, 106-pressing cover, 107-adjusting pressing plate, 108-second bearing, 109-sliding block, 110-pressing screw, 111-adjusting screw, 201-switching power supply, 202-electromagnetic valve, 203-silencer, 204-quick joint, 205-air inlet pipe, 206-filtering pressure reducing valve, 207-air pipe, 208-throttling valve, 209-selection switch, 210-air cylinder, 211-piston rod, 212-air source, 301-cushion block, 302-guide rod, 303-copper sleeve gland, 304-limiting seat, 305-copper sleeve and 306-limiting shield.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
As shown in fig. 1, a pneumatic magnetic stripe pressing device is used for positioning and loading a magnetic stripe on an injection limiting rod, and comprises an operation platform 5, and an air cylinder mechanism 2, at least one set of magnetic stripe pressing mechanisms 1 and a linkage structure 3 which are arranged on the operation platform 5, wherein the air cylinder mechanism 2 comprises an air cylinder 201 with a piston rod 202, the linkage structure 3 is provided with a plurality of mounting holes, and the injection limiting rod 6 and the piston rod 202 are arranged in the mounting holes; the magnetic stripe pressing mechanism 1 is used for bearing the injection limiting rod 6 and pressing the magnetic stripe 7 into the groove of the injection limiting rod 6; the cylinder mechanism 2 provides power for the magnetic stripe pressing mechanism 1, and drives the injection limiting rod 6 in the magnetic stripe pressing mechanism 1 to move forwards or backwards through the linkage structure 3.
When the number of the groups of the magnetic stripe pressing mechanisms 1 is even, the magnetic stripe pressing mechanisms 1 can be evenly distributed on two sides of the cylinder mechanism 2. Under the condition of ensuring the guide balance, two or more pressing and shooting limiting rods 6 can be simultaneously pressed and installed on the magnetic strips 7.
As shown in fig. 2, the cylinder mechanism 2 further includes an air inlet pipe 205, a switching power supply 201, a selection switch 209, an electromagnetic valve 202, a throttle valve 208, and a filtering and pressure reducing valve 206 in addition to the cylinder 210 and the piston rod 211, wherein two output ends of the electromagnetic valve 202 are respectively connected to a front cavity and a rear cavity in the cylinder 201 through the throttle valve 208, an input end of the electromagnetic valve 202 is connected to the air inlet pipe 205 through the filtering and pressure reducing valve 206 to connect an air source 212, the selection switch 209 is respectively electrically connected to the switching power supply 201 and the electromagnetic valve 202, and the selection switch 209 controls the advance or retreat of the piston rod 211 in the cylinder 210 through the.
To reduce noise, a muffler 203 may be connected to the solenoid valve 202.
As shown in fig. 3, the magnetic stripe pressing mechanism 1 includes a fixing base 101, at least one fixed roller shaft 104, two sliders 109 and a pressing roller shaft 103, wherein the fixing base 101 is a U-shaped structure formed by a base and side plates connected to both sides of the base, rectangular holes opened to the top ends of the side plates are formed in the upper portions of the side plates, shaft holes are formed in the lower portions of the side plates, both ends of the fixed roller shaft 104 are respectively fixed in the shaft holes of the two side plates, both ends of the fixed roller shaft 104 are further respectively connected with a fixed roller adjusting structure, both ends of the pressing roller shaft 103 are respectively connected with the two sliders 109, and the two sliders 109 are respectively fixed in the rectangular holes of the.
The utility model discloses an implementation, fixed roller adjust the structure and include first bearing 105 and gland 106, and the both ends of bearing 105 are connected with tip, gland 106 of fixed roller axle 104 respectively, and the support through first bearing 105 and the stable rotation of fixed roller axle 104 of spacing realization of gland 106.
The number of the fixed roller shaft 104 and the shaft holes of the side plates can be one or more, and can be set according to actual needs. In fig. 1, there are 2 fixed roller shafts 104, and each side plate has 2 shaft holes.
One end of the sliding block 109 is fixed at the end of the pressing roller shaft 103, the other end of the sliding block 109 is connected with the adjusting pressure plate 107 through the second bearing 108, and if the pressing roller shaft 103 swings left and right due to assembly error or abrasion, the adjusting pressure plate 107 can be additionally arranged to realize left and right fixation of the pressing roller shaft 103 through the adjusting screw 110. In addition, the device also comprises a pressing plate 102, wherein the pressing plate 102 is fixed above the side plate of the fixed seat 101 and the slide block 109, and the pressing plate 102 realizes the vertical fixation of the pressing roller shaft 103 through a pressing screw 111. The above components are all arranged symmetrically.
The connection between the above devices is very tight, the matching is also very stable, the adjusting screw 110 can enable the pressing roller shaft 103 to be positioned left and right, the magnetic strip 7 can be compacted in the middle, and if the part processing is not good, or the device is worn for a long time and is too worn to cause the upper pressing roller shaft 103 to swing left and right, the magnetic strip can be adjusted again when the effect of the magnetic strip is not good, namely the magnetic strip can be used continuously after being worn out. The fixed adjustable design of above device when the device appears wearing and tearing or the assembly is unreasonable, can realize the extension of device life through adjusting the refastening. All parts of the device are detachably connected, and the press mounting of the injection limiting rod 6 and the magnetic stripe 7 with different specifications can be realized by replacing part of the parts.
When the magnetic stripe pressing mechanism 1 is arranged on only one side of the two sides of the cylinder mechanism 2, the guide mechanism 4 can be arranged on the other side of the cylinder mechanism 2, and the guide mechanism 4 is used for maintaining stable operation. Because only when the single-side bar pressing mechanism 1 is arranged, if the guide mechanism 4 is not additionally arranged, the condition that the magnetic bar pressing process is blocked or biased is easily generated in the analysis of force balance, and the stable quality of the magnetic bar pressing can be maintained after the balance design.
As shown in fig. 4, the guide mechanism 4 includes a cushion block 301, a limiting seat 304, and a guide rod 302, the cushion block 301 is fixed on the operating platform 5, the limiting seat 304 is fixed on the cushion block 301, a through hole is provided in the middle of the limiting seat 304, the guide rod 302 passes through the through hole of the limiting seat 304 and is fixed by two limiting structures, and the front end of the guide rod 302 is fixed in the mounting hole of the linkage structure 3.
The rear end of the guide rod 302 is sleeved with a limiting shield 306, the limiting structure comprises copper sleeves 305 and copper sleeve pressing covers 303, the two copper sleeves 305 are respectively sleeved on the parts of the guide rod 302 penetrating into and out of the limiting seat 304, the two ends of each copper sleeve 305 are respectively connected with the limiting seat 304 and the copper sleeve pressing cover 303, and the copper sleeve pressing cover 303 at the rear end of the guide rod 302 is fixedly connected with the limiting shield 306.
In order to protect cylinder mechanism 2 and guiding mechanism 4, the utility model discloses pneumatic pressure magnetic stripe device can also include lower extreme open-ended safety cover 8, and on 8's the edge-fixed of safety cover 5, cylinder mechanism 2 and guiding mechanism 4 all set up in safety cover 8, and select switch 209's control button can stretch out 8 table of safety cover and expose so that open and stop control outside.
When the utility model is used, the air inlet pipe 205 is connected with the air source 212, the injection limiting rod 6 of the die casting machine is placed above the fixed roller shaft 104 in the U-shaped groove of the fixing seat 101 of the magnetic stripe pressing mechanism 2, the magnetic stripe 7 is placed above the injection limiting rod 6 and aligned with the notch on the injection limiting rod 6 for placing the magnetic stripe 7, and the positions of the fixed roller shaft 104 and the pressing roller shaft 103 are well adjusted; the twist selection switch 209 controls the piston rod 211 in the cylinder 210 to advance or retreat to drive the shot-stop rod 6 to advance or retreat, thereby completing the operation of attaching the magnetic stripe 7 to the shot-stop rod 6.
Compared with the manual installation effect, the utility model has high quality, less time consumption and cost saving; compared with a simple magnetic strip pressing device, the magnetic strip pressing device is stable and reliable in design and good in universality, a balance guide device is additionally arranged, the output effect is stable, the product quality is stable, parts can be designed in a replaceable manner, and the requirements of products of different specifications can be met; the influence of human operation on the effect of pressing the magnetic strips is reduced, the effect of pressing the magnetic strips is better than manual pulling of human, the pressed products are uniform and attractive, and the efficiency is high.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (12)
1. A pneumatic magnetic stripe pressing device is used for positioning and loading a magnetic stripe on an injection limiting rod and is characterized by comprising an operation platform, and an air cylinder mechanism, at least one group of magnetic stripe pressing mechanisms and a linkage structure which are arranged on the operation platform, wherein the air cylinder mechanism comprises an air cylinder with a piston rod, the linkage structure is provided with a plurality of mounting holes, and the injection limiting rod and the piston rod are arranged in the mounting holes;
the magnetic stripe pressing mechanism is used for bearing the injection limiting rod and pressing the magnetic stripe into a groove of the injection limiting rod;
the air cylinder mechanism provides power for the magnetic stripe pressing mechanism and drives the injection limiting rod in the magnetic stripe pressing mechanism to move forwards or backwards through the linkage structure.
2. The pneumatic magnetic stripe pressing device according to claim 1, wherein when the number of the groups of the magnetic stripe pressing mechanisms is even, the magnetic stripe pressing mechanisms are equally distributed on two sides of the cylinder mechanism.
3. The pneumatic magnetic stripe pressing device according to claim 1, wherein the magnetic stripe pressing mechanism comprises a fixed seat, at least one fixed roller shaft, two sliding blocks and a pressing roller shaft, the fixed seat is a U-shaped structure formed by a base and side plates connected to both sides of the base, the upper portions of the side plates are provided with rectangular holes opened to the top ends of the side plates, the lower portions of the side plates are provided with shaft holes, both ends of the fixed roller shaft are respectively fixed in the shaft holes of the two side plates, both ends of the fixed roller shaft are also respectively connected with a fixed roller adjusting structure, both ends of the pressing roller shaft are respectively connected with the two sliding blocks, and the two sliding blocks are respectively fixed in the rectangular holes of the two side plates.
4. The pneumatic magnetic stripe pressing device of claim 3, wherein the fixed roller adjusting structure comprises a first bearing and a gland, two ends of the bearing are respectively connected with the end part of the fixed roller shaft and the gland, and the stable rotation of the fixed roller shaft is realized through the support of the first bearing and the limit of the gland.
5. The pneumatic magnetic stripe pressing device as claimed in claim 3, wherein one end of the sliding block is fixed on the end of the pressing roller shaft, the other end of the sliding block is connected with an adjusting pressure plate through a second bearing, and the adjusting pressure plate realizes the left and right fixation of the pressing roller shaft through a pressing screw.
6. The pneumatic magnetic stripe pressing device of claim 3 further comprising a pressing plate fixed above the fixed seat and the sliding block, wherein the pressing plate realizes the up-and-down fixation of the pressing roller shaft through a pressing screw.
7. The pneumatic magnetic stripe pressing device of claim 1, wherein the cylinder mechanism further comprises an air inlet pipe, a switching power supply, a selection switch, a solenoid valve, a throttle valve, and a filtering pressure reducing valve, two output ends of the solenoid valve are respectively connected to the front cavity and the rear cavity in the cylinder through the throttle valve, an input end of the solenoid valve is connected to the air inlet pipe through the filtering pressure reducing valve, the selection switch is respectively electrically connected to the switching power supply and the solenoid valve, and the selection switch controls the advance or retreat of a piston rod in the cylinder through the switches at the two output ends of the solenoid valve.
8. The pneumatic bar magnet apparatus of claim 7 wherein a muffler is attached to said solenoid valve.
9. The pneumatic magnetic stripe pressing device according to claim 1, wherein when only one side of the two sides of the cylinder mechanism is provided with the magnetic stripe pressing mechanism, the other side of the cylinder mechanism is provided with a guiding mechanism for maintaining stable operation.
10. The pneumatic magnetic stripe pressing device of claim 9, wherein the guiding mechanism comprises a cushion block, a limiting seat and a guiding rod, the limiting seat is fixed on the cushion block, the limiting seat is provided with a through hole, the guiding rod passes through the through hole of the limiting seat and is fixed by a front limiting structure and a rear limiting structure, and the front end of the guiding rod is fixed in a mounting hole of the linkage structure.
11. The pneumatic magnetic stripe pressing device of claim 10, wherein the rear end of the guide rod is sleeved with a limiting shield, the limiting structure comprises a copper sleeve and a copper sleeve gland, the two copper sleeves are respectively sleeved on the parts of the guide rod penetrating into and out of the limiting seat, two ends of the copper sleeve are respectively connected with the limiting seat and the copper sleeve gland, and the copper sleeve gland at the rear end of the guide rod is fixedly connected with the limiting shield.
12. The pneumatic bar magnet pressing device according to claim 9, further comprising a protecting cover with an opening at the lower end, wherein the edge of the protecting cover is fixed on the operating platform, and the cylinder mechanism and the guiding mechanism are both arranged in the protecting cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129058.4U CN209953763U (en) | 2019-01-25 | 2019-01-25 | Pneumatic magnetic strip pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129058.4U CN209953763U (en) | 2019-01-25 | 2019-01-25 | Pneumatic magnetic strip pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209953763U true CN209953763U (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920129058.4U Expired - Fee Related CN209953763U (en) | 2019-01-25 | 2019-01-25 | Pneumatic magnetic strip pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209953763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759556A (en) * | 2019-01-25 | 2019-05-17 | 宁波海天金属成型设备有限公司 | Pneumatic pressure magnetic stripe devices |
-
2019
- 2019-01-25 CN CN201920129058.4U patent/CN209953763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759556A (en) * | 2019-01-25 | 2019-05-17 | 宁波海天金属成型设备有限公司 | Pneumatic pressure magnetic stripe devices |
| CN109759556B (en) * | 2019-01-25 | 2024-04-19 | 宁波海天金属成型设备有限公司 | Pneumatic magnetic stripe pressing device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |