CN218869569U - Shoe eyelet punching device for shoe production - Google Patents

Shoe eyelet punching device for shoe production Download PDF

Info

Publication number
CN218869569U
CN218869569U CN202222844144.8U CN202222844144U CN218869569U CN 218869569 U CN218869569 U CN 218869569U CN 202222844144 U CN202222844144 U CN 202222844144U CN 218869569 U CN218869569 U CN 218869569U
Authority
CN
China
Prior art keywords
adjusting plate
drilling
shoes
base
control panel
Prior art date
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.)
Active
Application number
CN202222844144.8U
Other languages
Chinese (zh)
Inventor
吕玉霞
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.)
Chaohu Huayang Shoes Co ltd
Original Assignee
Chaohu Huayang Shoes 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 Chaohu Huayang Shoes Co ltd filed Critical Chaohu Huayang Shoes Co ltd
Priority to CN202222844144.8U priority Critical patent/CN218869569U/en
Application granted granted Critical
Publication of CN218869569U publication Critical patent/CN218869569U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Press Drives And Press Lines (AREA)

Abstract

The utility model discloses a shoe production is with beating eyelet device, include: the base is provided with a support column; the driving mechanism is arranged on the support column and is at least partially positioned below the support column; the drilling mechanism is arranged on the driving mechanism; the transmission mechanism is arranged on the base, and the transmission mechanism and the drilling mechanism are positioned on the same plane; the transmission mechanism can drive the limiting and adjusting mechanism to move on the base; and the control panel is arranged on the base and is electrically connected with the driving mechanism, the drilling mechanism, the transmission mechanism and the limiting and adjusting mechanism. The utility model discloses degree of automation is higher, can reduce staff's intensity of labour to make the more accuracy of drilling of shoes, improved the efficiency that shoes were drilled greatly, guarantee the quality of drilling of shoes simultaneously.

Description

Shoe eyelet punching device for shoe production
Technical Field
The utility model relates to a make eyelet device, especially a shoes production is with making eyelet device.
Background
In the production process of the shoe, the shoe upper needs to be punched by using the punching device, so that the shoe is convenient to further process and manufacture. The water discharge when the eyelet on the one hand can be convenient for wash shoes, secondly still has ventilative effect, and the face of ventilating of increase shoes lets shoes more ventilative, makes shoes be difficult to smelly, can also let shoes wear tighter at last, ties up through the shoelace, can let shoes fit the foot more like this.
When the existing eyelet punching device is used, the automation degree of the device is low, the eyelet punching efficiency is low, the labor intensity of workers is high, the eyelet punching accuracy is low, and the eyelet punching quality of shoes is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shoes production is with device of drilling a hole to solve the technical problem among the prior art, it can improve the degree of automation of device, has improved the efficiency that shoes were drilled greatly, has reduced staff's intensity of labour, and can make the more accuracy of drilling of shoes, guarantee the quality of drilling of shoes.
The utility model provides a shoe production is with beating eyelet device, include: the base is provided with a support column; the driving mechanism is arranged on the support column and is at least partially positioned below the support column; the drilling mechanism is arranged on the driving mechanism; the transmission mechanism is arranged on the base, and the transmission mechanism and the drilling mechanism are positioned on the same plane; the transmission mechanism can drive the limit adjusting mechanism to move on the base; and the control panel is arranged on the base and electrically connected with the driving mechanism, the drilling mechanism, the transmission mechanism and the limiting and adjusting mechanism.
According to the technical scheme of the embodiment of the application, when shoes are punched, the vamps are placed on the limiting adjusting mechanisms, and the punching positions of the shoes can be adjusted through the limiting adjusting mechanisms and the punching mechanisms, so that the accuracy of punching the vamps can be ensured, and the symmetrical positions of the shoes can be punched simultaneously; furthermore, the transmission mechanism can drive the punching mechanism to continuously punch holes on the vamp, and meanwhile, the quantity of punched holes on the vamp is controlled, so that the punching efficiency of the shoes is improved; furthermore, the driving mechanism can realize the punching of the vamp, and the positions and the quantity of the punched holes of the shoes can be edited through the control panel, so that the punching work of the shoes can be quickly realized, and the punching quality of the shoes cannot be influenced.
Preferably, actuating mechanism includes cylinder, telescopic link and mounting panel, the cylinder sets up the top of pillar, cylinder and control panel electric connection, the telescopic link sets up the bottom of pillar, the cylinder with the telescopic link is connected, the mounting panel is connected the bottom of telescopic link. Thus, the stability of the shoe during punching can be ensured.
Preferably, the drilling mechanism comprises; the two grooves are symmetrically formed in the bottom end of the mounting plate; the threaded rods are arranged inside the two grooves, the driving motors connected with the threaded rods are arranged outside the mounting plate and electrically connected with the control panel, and the thread directions of the threaded rods in the two grooves are symmetrically arranged; the two thread blocks are symmetrically arranged outside the threaded rod in the two grooves; and the two stamping rods are connected to the bottom of the thread block. The two thread blocks are driven by the driving motor to move oppositely or oppositely, so that the position of the stamping rod is adjusted, and drilling at different positions of the shoe can be facilitated.
Preferably, transport mechanism includes electronic slide and electronic guide block, electronic slide sets up the top of base, electronic slide and control panel electric connection, electronic guide block sets up in the electronic slide, electronic slide can adjust the longitudinal position of electronic guide block. The electric guide block is driven to move through the electric slide way, so that the relative position of the vamp and the stamping rod can be automatically adjusted, and the hole drilling of the shoe can be more accurate.
Preferably, the limit adjusting mechanism includes: the workbench is arranged on the electric guide block; the first adjusting plate and the second adjusting plate are arranged on the workbench, and the cross sections of the first adjusting plate and the second adjusting plate are in a T shape and an inverted T shape; the punching holes are symmetrically formed in the first adjusting plate and the second adjusting plate, and the size of each punching hole is matched with that of the punching rod; the baffle is arranged on the workbench and can limit the shoes. Through the position in adjustment punching press hole, with the position looks adaptation of punching press pole, can avoid like this to cause the damage to the vamp when drilling shoes, the waste material that produces when drilling simultaneously can be discharged through the both sides of first regulating plate and second regulating plate.
Preferably, the limit adjusting mechanism further comprises: the racks are symmetrically arranged on the sides, close to each other, of the first adjusting plate and the second adjusting plate; the two gears are symmetrically arranged on the sides, close to each other, of the first adjusting plate and the second adjusting plate, and the gears are meshed with the racks; the rotating motor is arranged on the side wall of the workbench, the output end of the rotating motor is connected with one of the gears, and the rotating motor is electrically connected with the control panel. Such design can be convenient for the synchronous adjustment of first regulating plate and second regulating plate position, avoids the position of first regulating plate and second regulating plate to take place the skew, influences the drilling of shoes.
Compared with the prior art, the utility model discloses degree of automation is higher, can reduce staff's intensity of labour to make the more accuracy of holing of shoes, improved the efficiency that shoes were bored greatly, guarantee the quality of holing of shoes simultaneously.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic bottom view of the mounting plate of the present invention;
fig. 3 is a schematic structural view of the base of the present invention;
FIG. 4 is a schematic structural view of the workbench of the present invention;
FIG. 5 is a schematic structural view of a first regulating plate and a second regulating plate according to the present invention;
fig. 6 is a schematic sectional structure view of the workbench, the first adjusting plate and the second adjusting plate of the present invention.
Description of reference numerals: 1. a base; 2. a pillar; 3. a cylinder; 4. a telescopic rod; 5. mounting a plate; 6. a drive motor; 7. a groove; 8. a threaded rod; 9. a thread block; 10. a stamping rod; 11. an electric slideway; 12. an electric guide block; 13. a work table; 14. a first adjusting plate; 15. a second adjusting plate; 16. punching a hole; 17. a baffle plate; 18. a rack; 19. a gear; 20. a rotating electric machine; 21. a control panel.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used for convenience in describing the embodiments of the present application and for simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1-3, embodiments of the present invention provide an eyelet device for producing shoes, comprising: the device comprises a base 1, wherein a support column 2 is arranged on the base 1; the driving mechanism is arranged on the support column 2, and at least part of the driving mechanism is positioned below the support column 2; the drilling mechanism is arranged on the driving mechanism; the transmission mechanism is arranged on the base 1, and the transmission mechanism and the drilling mechanism are positioned on the same plane; the limiting and adjusting mechanism is arranged on the transmission mechanism, and the transmission mechanism can drive the limiting and adjusting mechanism to move on the base 1; and the control panel 21 is arranged on the base 1, and the control panel 21 is electrically connected with the driving mechanism, the drilling mechanism, the transmission mechanism and the limiting and adjusting mechanism.
According to the technical scheme of the embodiment of the application, when shoes are punched, the vamps are placed on the limiting adjusting mechanisms, and the punching positions of the shoes can be adjusted through the limiting adjusting mechanisms and the punching mechanisms, so that the accuracy of punching the vamps can be ensured, and the symmetrical positions of the shoes can be punched simultaneously; furthermore, the transmission mechanism can drive the punching mechanism to continuously punch holes on the vamp, and meanwhile, the quantity of punched holes on the vamp is controlled, so that the punching efficiency of the shoes is improved; further, the driving mechanism can achieve punching of the shoe upper, the positions and the number of the shoe punching can be edited through the control panel 21, so that punching work of the shoes can be rapidly achieved, and punching quality of the shoes cannot be affected.
In the embodiment that this application provided, as shown in fig. 1, actuating mechanism includes cylinder 3, telescopic link 4 and mounting panel 5, and cylinder 3 sets up at the top of pillar 2, and cylinder 3 and control panel 21 electric connection, and telescopic link 4 sets up in the bottom of pillar 2, and cylinder 3 is connected with telescopic link 4, and mounting panel 5 is connected in the bottom of telescopic link 4.
Technical scheme among the prior art can be referred to the concrete structure of cylinder 3 and telescopic link 4, and technical personnel in this field can know, do not describe here any more, can start cylinder 3 through control panel 21 and drive telescopic link 4 at the motion of vertical direction to realize the work of drilling of shoes.
In the embodiments provided herein, as shown in fig. 1-2, a drilling mechanism includes; the two grooves 7 are symmetrically formed at the bottom end of the mounting plate 5; the threaded rods 8 are arranged inside the two grooves 7, the driving motor 6 connected with the threaded rods 8 is arranged outside the mounting plate 5, the driving motor 6 is electrically connected with the control panel 21, and the threaded directions of the threaded rods 8 in the two grooves 7 are symmetrically arranged; two thread blocks 9 symmetrically arranged outside the threaded rods 8 in the two grooves 7; and two stamping rods 10 are connected to the bottom of the thread block 9.
When the motor rotates, the threaded rod 8 can be driven to rotate, so that the two threaded blocks 9 are driven to move relatively or oppositely, the positions of the two stamping rods 10 are adjusted, the shoes can be conveniently punched, and the distance between the two stamping rods 10 can be controlled through the control panel 21.
In the embodiment provided by the application, as shown in fig. 1 and fig. 3, the transmission mechanism includes an electric slideway 11 and an electric guide block 12, the electric slideway 11 is arranged on the top of the base 1, the electric slideway 11 is electrically connected with the control panel 21, the electric guide block 12 is arranged in the electric slideway 11, and the electric slideway 11 can adjust the longitudinal position of the electric guide block 12.
Technical scheme among the prior art can be referred to the concrete structure of electronic slide 11 and electronic guide block 12, and technical personnel in this field can know, do not describe here again, can make through control panel 21 and carry out the back of drilling to shoes, and electronic guide block 12 of drive removes in electronic slide 11, can drill to the different positions of shoes to can control the distance between the adjacent eyelet, thereby realize holing to the automation of shoes.
In the embodiments provided in this application, as shown in fig. 1, 4 and 6, the limit adjusting mechanism includes: a table 13 provided on the electric guide block 12; the first adjusting plate 14 and the second adjusting plate 15 are arranged on the workbench 13, and the sections of the first adjusting plate 14 and the second adjusting plate 15 are in a T shape and an inverted T shape; the punching holes 16 are symmetrically formed in the first adjusting plate 14 and the second adjusting plate 15, and the size of each punching hole 16 is matched with that of the punching rod 10; baffle 17 sets up on workstation 13, and baffle 17 can carry on spacingly to shoes.
When electronic guide block 12 removed, can drive the motion of workstation 13 to the position of adjustment shoes eyelet, be hollow form between first regulating plate 14 and second regulating plate 15 outside and the punching press hole 16, when the eyelet to shoes, the waste material of production can drop to the bottom through punching press hole 16, along with the horizontal motion of first regulating plate 14 and second regulating plate 15, when the continuous increase of waste material of hollow department, can make the waste material of bottom arrange to the outside of workstation 13 through hollow department.
In the embodiments provided in this application, as shown in fig. 4 to 5, the limit adjusting mechanism further includes: a plurality of racks 18 symmetrically disposed at sides of the first adjusting plate 14 and the second adjusting plate 15 adjacent to each other; the two gears 19 are symmetrically arranged on the sides, close to each other, of the first adjusting plate 14 and the second adjusting plate 15, and the gears 19 are meshed with the racks 18; and the rotating motor 20 is arranged on the side wall of the workbench 13, the output end of the rotating motor 20 is connected with one gear 19, and the rotating motor 20 is electrically connected with the control panel 21.
Under the effect of control panel 21, when adjusting the distance between two punching rods 10, can drive rotating electrical machines 20 and rotate, drive first regulating plate 14 and the motion of second regulating plate 15 through gear 19 and rack 18 for the axle center of punching press hole 16 is located same straight line with the axle center of punching press pole 10, guarantees the stability of shoes drilling.
The utility model discloses a use method: when holing shoes, place shoes on first regulating plate 14 and second regulating plate 15 on workstation 13, with the top and the baffle 17 contact of shoes, shoes can be supported through the staff, also can fix through fixing device, and fixing device can adopt conventional technological means, only need guarantee shoes can not take place the skew when holing.
The frequency of the drilling, the positions and the number of the drilling can be edited through the control panel 21, wherein the air cylinder 3 drives the telescopic rod 4 to move in the vertical direction, so that the drilling of the shoes can be realized; the threaded rod 8 is driven to rotate by the driving motor 6, and the two threaded blocks 9 are driven to move relatively or oppositely, so that the positions of the two stamping rods 10 are adjusted, and holes can be conveniently punched at different positions of the shoe; meanwhile, the gear 19 is driven to rotate by the rotating motor 20, and the first adjusting plate 14 and the second adjusting plate 15 are driven to move relatively or oppositely by the rack 18, so that the position of the punching hole 16 is matched with the position of the punching rod 10.
The punched scrap may fall to the bottoms of the first regulating plate 14 and the second regulating plate 15, and the scrap may be discharged out of the table 13 as the positions of the first regulating plate 14 and the second regulating plate 15 are changed.
After the drilling is finished, the control panel 21 drives the electric guide block 12 to move in the electric slideway 11 to drill the next position of the shoe, so that the drilling work of the shoe can be automatically finished, and the drilling accuracy is higher.
The above description is only for the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the conception of the present invention or equivalent embodiments modified to equivalent changes are not beyond the spirit covered by the description and drawings, and should be within the protection scope of the present invention.

Claims (6)

1. A shoe eyelet device for shoe production, comprising:
the base is provided with a support column;
the driving mechanism is arranged on the support column and is at least partially positioned below the support column;
the drilling mechanism is arranged on the driving mechanism;
the transmission mechanism is arranged on the base, and the transmission mechanism and the drilling mechanism are positioned on the same plane;
the transmission mechanism can drive the limiting and adjusting mechanism to move on the base;
and the control panel is arranged on the base and is electrically connected with the driving mechanism, the drilling mechanism, the transmission mechanism and the limiting and adjusting mechanism.
2. The eyelet device of claim 1, wherein said eyelet device comprises: actuating mechanism includes cylinder, telescopic link and mounting panel, the cylinder sets up the top of pillar, cylinder and control panel electric connection, the telescopic link sets up the bottom of pillar, the cylinder with the telescopic link is connected, the mounting panel is connected the bottom of telescopic link.
3. The eyelet device for producing shoes according to claim 2, wherein: the drilling mechanism comprises;
the two grooves are symmetrically formed in the bottom end of the mounting plate;
the threaded rods are arranged inside the two grooves, the driving motors connected with the threaded rods are arranged outside the mounting plate and electrically connected with the control panel, and the threaded directions of the threaded rods in the two grooves are symmetrically arranged;
the two thread blocks are symmetrically arranged outside the threaded rod in the two grooves;
and the two stamping rods are connected to the bottom of the thread block.
4. The eyelet device for producing shoes according to claim 3, wherein said eyelet device comprises: the transmission mechanism comprises an electric slide and an electric guide block, the electric slide is arranged at the top of the base, the electric slide is electrically connected with the control panel, the electric guide block is arranged in the electric slide, and the electric slide can be adjusted to the longitudinal position of the electric guide block.
5. The eyelet device for producing shoes according to claim 4, wherein said eyelet device comprises: spacing adjustment mechanism includes:
the workbench is arranged on the electric guide block;
the first adjusting plate and the second adjusting plate are arranged on the workbench, and the cross sections of the first adjusting plate and the second adjusting plate are in a T shape and an inverted T shape;
the punching holes are symmetrically formed in the first adjusting plate and the second adjusting plate, and the size of each punching hole is matched with that of the punching rod;
the baffle sets up on the workstation, the baffle can carry on spacingly to shoes.
6. The eyelet device for producing shoes according to claim 5, wherein said eyelet device comprises: spacing adjustment mechanism still includes:
the racks are symmetrically arranged on the sides, close to each other, of the first adjusting plate and the second adjusting plate;
the two gears are symmetrically arranged on the sides, close to each other, of the first adjusting plate and the second adjusting plate, and the gears are meshed with the racks;
the rotating motor is arranged on the side wall of the workbench, the output end of the rotating motor is connected with one of the gears, and the rotating motor is electrically connected with the control panel.
CN202222844144.8U 2022-10-26 2022-10-26 Shoe eyelet punching device for shoe production Active CN218869569U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222844144.8U CN218869569U (en) 2022-10-26 2022-10-26 Shoe eyelet punching device for shoe production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222844144.8U CN218869569U (en) 2022-10-26 2022-10-26 Shoe eyelet punching device for shoe production

Publications (1)

Publication Number Publication Date
CN218869569U true CN218869569U (en) 2023-04-18

Family

ID=85956275

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222844144.8U Active CN218869569U (en) 2022-10-26 2022-10-26 Shoe eyelet punching device for shoe production

Country Status (1)

Country Link
CN (1) CN218869569U (en)

Similar Documents

Publication Publication Date Title
CN108817184A (en) A kind of automation sheet metal member feeding machine-shaping device
CN210308160U (en) PCB board multiaxis puncher
CN218869569U (en) Shoe eyelet punching device for shoe production
CN109108157B (en) multifunctional adjustable punching and folding integrated special machine for cable bridge
CN113020653A (en) Truss 3D floor board puncher
CN107199282B (en) A kind of processing mold of easy-to-mount auto parts and components
CN109719220A (en) A kind of positioning device applied in creeper tread stamping die
CN111889731A (en) Perforating device is made to circuit board for electron machinery
CN210587393U (en) Stainless steel section bar cutting device
CN210633783U (en) Perforating device is used in paper products processing
CN220093959U (en) Punching mechanism for mounting metal corner seat
CN216828195U (en) Strong-adaptability circle rotating machine for stamping iron-wood disc
CN220329777U (en) Stamping die for automobile parts
CN220128102U (en) Perforating device is used in aluminium alloy processing
CN218015941U (en) Metal button drilling equipment
CN113102610B (en) Rotary punching press
KR100219391B1 (en) Press with tap
CN217529296U (en) Drilling equipment is used in metal product production
CN214983599U (en) Table top type multi-station wine box outer package rivet hole pre-punching positioning device
CN220127279U (en) Stable bending equipment for metal product processing
CN220343787U (en) Flying weaving vamp punching equipment
CN211758239U (en) Motor stator lead-out wire cutting device
CN216502782U (en) Lateral grooving device for hole sealing ring
CN210908177U (en) Numerical control super-porous three-side drilling device
CN219581471U (en) Punching device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant