CN223250336U - Double-hole stamping device for filter cover plate - Google Patents
Double-hole stamping device for filter cover plateInfo
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- CN223250336U CN223250336U CN202422581966.0U CN202422581966U CN223250336U CN 223250336 U CN223250336 U CN 223250336U CN 202422581966 U CN202422581966 U CN 202422581966U CN 223250336 U CN223250336 U CN 223250336U
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Abstract
本申请涉及冲压模具设备技术领域，公开了一种滤波器盖板双孔冲压装置，其包括底板、双孔上模板和双孔下模板，底板一侧设置有支撑座，且支撑座上升降设置有动模座，双孔上模板设置在动模座的底部，双孔下模板位于双孔上模板的正下方且设置在底板上，双孔上模板上匹配双孔比例开设有两个冲裁孔，且每个冲裁孔朝向双孔下模板一侧的周圈均设置有一圈冲裁刀具，双孔下模板朝向双孔上模板的一侧对应每个冲裁孔均同轴开设有一个直径大于冲裁孔的安装槽，且每个安装槽内均设置有插接配合的圆环结构，圆环结构沿轴向分隔的截面呈凸形设置，圆环结构的内圈为与冲裁孔之间配合设置的落料孔。本申请具有提高滤波器盖板双孔冲压稳定性和加工效率的效果。
The present application relates to the technical field of stamping die equipment and discloses a double-hole stamping device for a filter cover plate, which includes a base plate, a double-hole upper template, and a double-hole lower template. A support seat is provided on one side of the base plate, and a movable die seat is provided on the support seat for lifting. The double-hole upper template is provided at the bottom of the movable die seat. The double-hole lower template is located directly below the double-hole upper template and is provided on the base plate. Two punching holes are provided on the double-hole upper template to match the double-hole ratio, and a circle of punching tools is provided around each punching hole facing the double-hole lower template. A mounting groove with a diameter larger than the punching hole is coaxially provided on the side of the double-hole lower template facing the double-hole upper template corresponding to each punching hole, and a plug-in ring structure is provided in each mounting groove. The cross-section of the ring structure separated along the axial direction is convex, and the inner ring of the ring structure is a blanking hole provided to cooperate with the punching hole. The present application has the effect of improving the stability and processing efficiency of the double-hole stamping of the filter cover plate.
Description
Technical Field
The application relates to the technical field of stamping die equipment, in particular to a double-hole stamping device for a filter cover plate.
Background
Filters serve as an important electronic component and play a vital role in various types of communication equipment. The quality of the cover plate directly affects its performance and reliability during the filter manufacturing process. Current filter cover plates typically require precise hole site machining on the profile plate, which is extremely demanding in terms of machining accuracy. With the increase of the demand of the market for the filter, how to improve the efficiency and quality of the processing of the cover plate hole site becomes one of key elements of industry upgrading.
At present, the common filters in the market are mostly made of metal materials, and the metal materials have good corrosion resistance and mechanical strength, but have extremely high requirements on processing precision. The existing processing method of the hole site of the filter cover plate mostly adopts a single-hole punching mode. The specific measures include using a single-hole stamping die to stamp one hole site on the profile plate, or after one stamping is completed, adjusting the position of the profile plate, and repeating the same stamping operation for the next hole site. The method is widely applied to mass production of the filter cover plate, and machining of one hole site can be finished through one-time stamping. In addition, a continuous stamping mode is adopted, and a continuous die is arranged on the punch, so that the section plate gradually completes the processing of all hole sites in the process of stamping for many times.
Because only one hole site can be operated at a time, when two hole sites with shorter blanking intervals are needed on the section bar plate for manufacturing the filter cover plate, the two hole sites are sequentially blanked in a single-hole punching mode, the hole sites which are blanked after being very easy to cause are uneven in stress, so that the section bar plate part between the two hole sites is broken, the reject rate for manufacturing the filter cover plate is increased, and the processing efficiency of the filter cover plate is reduced.
Disclosure of utility model
In order to improve the stability and the processing efficiency of double-hole punching of the filter cover plate, the application provides a double-hole punching device of the filter cover plate.
The application provides a double-hole punching device for a filter cover plate, which adopts the following technical scheme:
The utility model provides a two hole stamping device of wave filter apron, includes bottom plate, diplopore cope match-plate pattern and diplopore lower bolster, bottom plate one side is provided with the supporting seat, just the supporting seat goes up and down to be provided with the die holder, diplopore cope match-plate pattern sets up the bottom at the die holder, diplopore lower bolster is located the diplopore cope match-plate pattern under and sets up on the bottom plate, two blanking holes have been seted up to the diplopore proportion on the diplopore cope match-plate pattern, and every the circumference of blanking hole orientation diplopore lower bolster one side all is provided with round blanking cutter, the mounting groove that a diameter is greater than the blanking hole has all been coaxially been seted up to one side of diplopore lower bolster orientation every blanking hole, and every all be provided with grafting complex ring structure in the mounting groove, ring structure is the convex setting along the cross-section of axial separation, the inner circle of ring structure is the blanking hole, the cooperation sets up between blanking hole and the blanking hole.
Through adopting above-mentioned technical scheme, this two hole punching press devices of filter apron can carry out accurate blanking to two hole sites on the section bar board simultaneously, has effectively improved machining efficiency and stability. The design of the double-hole upper template and the double-hole lower template ensures that two hole positions can be machined at the same station at one time, and the problems of errors and low efficiency caused by repeated adjustment of the positions of the profile plates are avoided. The cooperation design between blanking cutter and the ring structure makes the blanking in-process force distribution more even, has reduced the section bar board position fracture risk that leads to because of the atress is uneven to reduce the rejection rate and promote the whole processingquality of filter apron.
Optionally, the ring structure includes the grafting ring of grafting in the mounting groove and extends the supporting ring of mounting groove top surface, the equidistant bead that distributes of slant stripe form of outer lane of supporting ring.
Through adopting above-mentioned technical scheme, ring structure is as auxiliary molding's support piece, and the equidistant inclined stripe form bead of outer lane of its support ring, when contacting with the section bar board, can be effectively through the pressure that produces in the inclined stripe form bead dispersion punching press in-process, effectively improved the stability between ring structure and the mounting groove, and then avoid the ring structure to take place the skew in the punching press in-process to filter apron diplopore punching press's precision and stability have been promoted.
Optionally, the upper lift of diplopore lower bolster is provided with the support layer board of a shape that returns, the diapire of support layer board is provided with a plurality of guide montants that distribute, corresponds every guide montant on the diplopore lower bolster and all has seted up the guide way along vertical, singly peg graft the cooperation between guide montant and the guide way, and every all overlap on the guide montant and be equipped with a pressure spring, pressure spring butt is between the roof of support layer board diapire and diplopore lower bolster, works as when diplopore cope match-plate pattern and diplopore lower bolster compound die, support layer board and conflict section bar board are extended on the top of holding ring.
By adopting the technical scheme, the support supporting plate can provide stable support for the profile plate before stamping operation, so that the possibility of position deviation of the profile plate caused by supporting the profile plate by the support ring before stamping is reduced, the double-hole upper die plate moves downwards in the stamping process of the stamping device, pressure is firstly applied to the support supporting plate, so that the double-hole upper die plate and the support supporting plate clamp the profile plate, then the double-hole upper die plate moves downwards continuously, the support supporting plate moves downwards stably under the elastic action of the guide vertical rod and the spring, and the support supporting plate clamps the profile plate with the double-hole upper die plate all the time until the support ring supports the partial plate at the edge of the profile plate to be punched, so that the punching cutter is tangential with the inner ring, and accurate blanking is realized. The support supporting plate provides stable support, and accuracy of the position of the section bar plate in the double-hole punching process is improved, so that breakage of the section bar plate between hole positions caused by uneven stress is avoided, and machining accuracy and efficiency of the filter cover plate are improved.
Optionally, the bottom of movable mould base is provided with the mounting panel of cooperation diplopore cope match-plate pattern, diplopore cope match-plate pattern passes through countersunk bolt and installs the bottom at the mounting panel, the grafting groove has been seted up on the bottom of movable mould base, be provided with on the roof of mounting panel with grafting groove grafting complex dead lever, just be provided with the fastener that is used for fixed dead lever on the movable mould base.
Through adopting above-mentioned technical scheme, this two hole stamping device of filter apron passes through the fixed two hole cope match-plates of mounting panel in the movable mould base bottom, utilizes countersunk head bolt to realize firm installation to through the cooperation of spliced groove and dead lever, the effect of combined fastener has realized the quick replacement and the fixed of two hole cope match-plates on the movable mould base, has improved the flexibility and the maintenance efficiency of equipment.
Optionally, the butt plane has been seted up along self axial on the lateral wall of dead lever, the screw hole has been seted up to the intercommunication jack groove on the lateral wall of movable mould base, the fastener is the tight bolt of support layer board screw hole of wearing to establish through the screw thread rotation, tight bolt rotation of supporting wears to establish the screw hole butt on the butt plane of dead lever, and will the dead lever is supported tightly on the lateral wall of jack groove one side of keeping away from the screw hole.
Through adopting above-mentioned technical scheme, along the butt plane cooperation movable mould base lateral wall of seting up on the lateral wall of dead lever on the axial screw hole, utilize to support tight bolt with the dead lever fastening on the lateral wall of spliced groove one side of keeping away from the screw hole, effectively improved the mounting stability and the reliability of diplopore cope match-plate pattern in movable mould base bottom, ensured the accurate counterpoint of diplopore punching press in-process, avoided the processing deviation because of fixed infirm leads to.
Optionally, the blanking cutter is arranged in a triangle shape along the axially separated section.
By adopting the technical scheme, the blanking cutter is triangular, so that the strength of the cutter is enhanced, and the stability of the double-hole punching can be remarkably improved.
Optionally, the inclined plane that blanking cutter deviates from the blanking hole is the arc setting, and its arc center is located the oblique below of keeping away from the blanking hole.
Through adopting above-mentioned technical scheme, the inclined plane that blanking cutter deviates from the blanking hole is the arc setting for under the bearing of ring structure, the edge of section bar board blanking hole receives the extrusion of cambered surface, thereby reduces the burr rate that appears after the section bar board is by the blanking, thereby reduces the disability rate of filter apron, promotes machining precision and efficiency.
Optionally, be provided with the locating lever between diplopore cope match-plate pattern and the diplopore lower bolster, the locating lever slides and wears to establish the support layer board, a plurality of locating screw holes have been seted up near peripheral position distribution to the roof of diplopore lower bolster, the locating lever corresponds every locating screw hole and all is provided with one, just the screw thread section with locating screw hole complex has been seted up to the bottom of locating lever, the locating through-hole has been seted up to a plurality of locating levers on the diplopore cope match-plate pattern corresponding diplopore lower bolster, the diplopore cope match-plate pattern overlaps jointly and establishes on a plurality of locating levers.
Through adopting above-mentioned technical scheme, realize accurate location through the locating lever between diplopore cope match-plate pattern and the diplopore lower bolster, ensure that the relative position between the two is accurate to improve the precision and the stability of wave filter apron diplopore punching press. The locating rod is slidably penetrated through the supporting ring and is matched and fixed with the threaded section through the locating screw hole on the double-hole lower template, so that the stability of the locating rod is ensured. The locating through holes on the double-hole upper template enable the double-hole upper template to be smoothly sleeved on the locating rod, and the assembly precision and the use reliability of the whole device are further improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. This two hole stamping device of wave filter apron can carry out accurate blanking to two hole sites on the section bar board simultaneously, has effectively improved machining efficiency and stability. The design of the double-hole upper template and the double-hole lower template ensures that two hole positions can be machined at the same station at one time, and the problems of errors and low efficiency caused by repeated adjustment of the positions of the profile plates are avoided. The matched design between the blanking cutter and the circular ring structure enables the force distribution in the blanking process to be more uniform, reduces the fracture risk of the section bar plate part caused by uneven stress, thereby reducing the rejection rate and improving the overall processing quality of the filter cover plate;
2. The circular ring structure is used as a supporting piece for auxiliary forming, inclined stripe ribs are distributed on the outer ring of the supporting ring at equal intervals, and when the supporting piece is contacted with a profile plate, pressure generated in the stamping process can be effectively dispersed through the inclined stripe ribs, so that the stability between the circular ring structure and the mounting groove is effectively improved, the circular ring structure is prevented from being deviated in the stamping process, and the accuracy and the stability of double-hole stamping of the filter cover plate are improved;
3. Before the stamping operation, the support supporting plate can provide stable support for the profile plate, so that the possibility that the profile plate is offset due to the fact that the support ring supports the profile plate before stamping is reduced, during the stamping process of the stamping device, the double-hole upper die plate moves downwards, pressure is firstly applied to the support supporting plate, so that the double-hole upper die plate and the support supporting plate clamp the profile plate, then the double-hole upper die plate continuously moves downwards, the support supporting plate moves downwards steadily under the guiding action of the guide vertical rods and the elastic action of the springs, and the support supporting plate always clamps the profile plate with the double-hole upper die plate until the support ring supports the partial plate of the edge of the profile plate to be punched, so that the punching cutter is tangent to the inner ring, and accurate blanking is realized. The support supporting plate provides stable support, and accuracy of the position of the section bar plate in the double-hole punching process is improved, so that breakage of the section bar plate between hole positions caused by uneven stress is avoided, and machining accuracy and efficiency of the filter cover plate are improved.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
FIG. 2 is a cross-sectional view showing the connection relationship between the movable die holder and the mounting plate in an embodiment of the application.
Fig. 3 is a cross-sectional view showing the connection relationship among the support pallet, the guide vertical rods, the compression springs and the double-hole lower template in the embodiment of the present application.
Reference numerals illustrate:
1. The device comprises a bottom plate, 2, a supporting seat, 21, a driving cylinder, 3, a movable die holder, 31, a plugging groove, 32, a fastener, 33, a threaded hole, 4, a mounting plate, 41, a fixing rod, 411, an abutting plane, 5, a double-hole upper die plate, 51, a punching hole, 52, a punching tool, 53, a positioning through hole, 6, a double-hole lower die plate, 61, a mounting groove, 62, a guide groove, 63, a positioning threaded hole, 7, a ring structure, 71, a plugging ring, 72, a supporting ring, 721, a blanking hole, 722, a convex edge, 8, a supporting plate, 81, a guide vertical rod, 811, a compression spring, 9 and a positioning rod.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a double-hole stamping device for a filter cover plate.
Referring to fig. 1, a double-hole punching device for a filter cover plate comprises a bottom plate 1, a supporting seat 2 is fixedly arranged on one side of the bottom plate 1, a driving cylinder 21 is fixedly arranged at the top end of the supporting seat 2, a piston rod of the driving cylinder 21 slides through the supporting seat 2, a movable die holder 3 is fixedly arranged at the bottom end of the movable die holder 3, a mounting plate 4 is detachably arranged at the bottom end of the movable die holder 3, a double-hole upper die plate 5 is mounted at the bottom of the mounting plate 4 through a countersunk bolt, a double-hole lower die plate 6 is mounted on the bottom plate 1 through a countersunk bolt, and the double-hole lower die plate 6 is positioned under the double-hole upper die plate 5.
Referring to fig. 2, a socket groove 31 is formed in the bottom end of the movable die holder 3, a fixing rod 41 is fixedly arranged on the top wall of the mounting plate 4, the fixing rod 41 is in socket fit with the socket groove 31, and a fastener 32 for fixing the fixing rod 41 is arranged on the movable die holder 3. The side wall of the fixed rod 41 is provided with an abutting plane 411 along the axial direction of the side wall, the side wall of the movable die holder 3 is provided with a threaded hole 33 which is communicated with the inserting groove 31, the fastener 32 in the embodiment is an abutting bolt which penetrates through the threaded hole 33 of the supporting plate 8 through threaded rotation, the abutting bolt rotates to penetrate through the threaded hole 33 to abut on the abutting plane 411 of the fixed rod 41, and the fixed rod 41 is abutted on the side wall, far away from the threaded hole 33, of the inserting groove 31.
Referring to fig. 2, two blanking holes 51 are formed in the matching section plate on the double-hole upper die plate 5 in proportion to double holes, a circle of blanking cutters 52 are fixedly arranged on the periphery of one side of each blanking hole 51, facing the double-hole lower die plate 6, of the blanking cutters 52, the axially separated sections of the blanking cutters 52 are arranged in a triangular shape, inclined planes of the blanking cutters 52, facing away from the blanking holes 51, are arranged in an arc shape, and arc centers of the inclined planes of the blanking cutters are located below inclined planes, facing away from the blanking holes 51.
Referring to fig. 2, a mounting groove 61 with a diameter larger than that of each blanking hole 51 is coaxially formed in the side, facing to the upper double-hole die plate 5, of each blanking hole 51, each mounting groove 61 is internally provided with a circular ring structure 7 in a clamping manner, the circular ring structures 7 are arranged in a convex shape along the axially separated section, each circular ring structure comprises an integrally formed inserting ring 71 and a supporting ring 72, and the inserting rings 71 are inserted into the mounting grooves 61 and are in inserting fit with the mounting grooves 61. The support ring 72 extends out of the top surface of the mounting groove 61 for assisting in punch forming. The inner ring of the supporting ring 72 is provided with a blanking hole 721, and the size of the blanking hole 721 is matched with that of the blanking hole 51. The outer ring of the support ring 72 is provided with integrally formed diagonal stripe-shaped ribs 722 at equal intervals.
Referring to fig. 2 and 3, a support plate 8 with a shape of a loop is provided on the double-hole lower die plate 6, a plurality of guide vertical rods 81 are fixedly provided on the bottom wall of the support plate 8, in this embodiment, two guide vertical rods 81 are distributed on the bottom wall of the two ends of the support plate 8 in the length direction, a guide groove 62 is vertically provided on the double-hole lower die plate 6 corresponding to each guide vertical rod 81, a single guide vertical rod 81 is in plug-in fit with the guide groove 62, and each guide vertical rod 81 is sleeved with a pressure spring 811, 811 is abutted between the bottom wall of the support plate 8 and the top wall of the double-hole lower die plate 6.
Referring to fig. 2 and 3, in order to assist in assembling the punching device, a positioning rod 9 is detachably disposed between the upper double-hole die plate 5 and the lower double-hole die plate 6, a plurality of positioning screw holes 63 are distributed at positions, close to the periphery, of the top wall of the lower double-hole die plate 6, in this embodiment, two positioning screw holes 63 are taken as an example, a distribution connecting line of the two positioning screw holes 63 is mutually perpendicular to a distribution connecting line of the two guide vertical rods 81, and the positioning rod 9 is provided with one corresponding to each positioning screw hole 63. The screw thread section matched with the positioning screw hole 63 is arranged at the bottom end of the positioning rod 9, the positioning rod 9 slides through the supporting plate 8, and the positioning through holes 53 are arranged on the double-hole upper template 5 corresponding to the positioning rods 9 on the double-hole lower template 6. Before assembly, the double-hole upper template 5 is sleeved on the positioning rods 9 together, and after assembly, the double-hole upper template 5 moves upwards along with the movable die holder 3 and the two positioning rods 9 are unscrewed and removed from the double-hole lower template 6.
The implementation principle of the double-hole stamping device of the filter cover plate is that in the stamping process of the stamping device, the double-hole upper die plate 5 moves downwards, pressure is firstly applied to the supporting plate 8, so that the double-hole upper die plate 5 and the supporting plate 8 clamp profile plates, then the double-hole upper die plate 5 continuously moves downwards, the supporting plate 8 stably moves downwards under the guiding action of the guide vertical rods 81 and the elastic action of the springs, the profile plates are always clamped with the double-hole upper die plate 5 until the supporting ring 72 supports up the partial plates at the edge of the profile plates to be punched 51, so that the punching cutter 52 is tangent to the inner ring, and accurate blanking is realized. The stamping device of this scheme's flexibility ratio is high, can select different diplopore cope match-plate pattern 5, circular structure and diplopore lower bolster 6 to install the combination according to actual production needs.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (8)
1. The utility model provides a two hole stamping device of wave filter apron, its characterized in that, including bottom plate (1), two hole cope match-plates (5) and two hole lower bolster (6), bottom plate (1) one side is provided with supporting seat (2), just supporting seat (2) oscilaltion is provided with movable mould seat (3), two hole cope match-plates (5) set up in the bottom of movable mould seat (3), two hole lower bolster (6) are located two hole cope match-plates (5) under and set up on bottom plate (1), two blanking holes (51) have been seted up to the two hole proportion on the matching section bar board on two hole cope match-plates (5), and every the periphery of blanking hole (51) towards two hole lower bolster (6) one side all is provided with round blanking cutter (52), one side of two hole lower bolster (6) towards two hole cope match-plates (5) corresponds every blanking hole (51) all coaxial mounting groove (61) that has seted up a diameter and is greater than blanking hole (51), and every mounting groove (61) is located two blanking hole (61) on the matching section bar board is provided with annular (721), the annular structure is set up along the annular (721) between the annular cross-section (721).
2. The double-hole stamping device for the filter cover plate according to claim 1, wherein the circular ring structure (7) comprises a plugging ring (71) plugged in the mounting groove (61) and a supporting ring (72) extending out of the top surface of the mounting groove (61), and inclined stripe-shaped ribs (722) are distributed on the outer ring of the supporting ring (72) at equal intervals.
3. The device for punching the double holes of the filter cover plate according to claim 2, wherein a double-hole lower die plate (6) is provided with a support supporting plate (8) in a circular shape in an ascending and descending manner, a plurality of guide vertical rods (81) are distributed on the bottom wall of the support supporting plate (8), guide grooves (62) are vertically formed in the double-hole lower die plate (6) corresponding to each guide vertical rod (81), the guide vertical rods (81) are matched with the guide grooves (62) in an inserting manner, a compression spring (811) is sleeved on each guide vertical rod (81), the compression spring (811) is abutted between the bottom wall of the support supporting plate (8) and the top wall of the double-hole lower die plate (6), and when the double-hole upper die plate (5) and the double-hole lower die plate (6) are clamped, the top ends of the support rings (72) extend out of the support supporting plate (8) and abut against the profile plates.
4. The double-hole stamping device for the filter cover plate according to claim 1, wherein a mounting plate (4) matched with a double-hole upper template (5) is arranged at the bottom of the movable die holder (3), the double-hole upper template (5) is arranged at the bottom of the mounting plate (4) through countersunk bolts, a plugging groove (31) is formed in the bottom end of the movable die holder (3), a fixing rod (41) in plugging fit with the plugging groove (31) is arranged on the top wall of the mounting plate (4), and a fastener (32) used for fixing the fixing rod (41) is arranged on the movable die holder (3).
5. The double-hole punching device for the filter cover plate according to claim 4, wherein an abutting plane (411) is formed on the side wall of the fixing rod (41) along the axial direction of the fixing rod, a threaded hole (33) is formed in the side wall of the movable die holder (3) and communicated with the inserting groove (31), the fastening piece (32) is an abutting bolt penetrating the threaded hole (33) of the supporting plate (8) through threaded rotation, the abutting bolt rotates to penetrate the threaded hole (33) to abut against the abutting plane (411) of the fixing rod (41), and the fixing rod (41) abuts against the side wall, far away from the threaded hole (33), of the inserting groove (31).
6. A filter cover plate double hole stamping device as claimed in claim 1, wherein the blanking cutters (52) are arranged in a triangular configuration in axially spaced cross-section.
7. The double-hole punching device for the filter cover plate according to claim 6, wherein the inclined surface of the punching cutter (52) facing away from the punching hole (51) is arranged in an arc shape, and the arc center of the inclined surface is positioned obliquely below the inclined surface facing away from the punching hole (51).
8. The filter cover plate double-hole stamping device according to claim 3, characterized in that a positioning rod (9) is arranged between the double-hole upper die plate (5) and the double-hole lower die plate (6), the positioning rod (9) is slidably arranged through the supporting plate (8), a plurality of positioning screw holes (63) are distributed at positions, close to the periphery, of the top wall of the double-hole lower die plate (6), one positioning rod (9) is arranged corresponding to each positioning screw hole (63), a thread section matched with the positioning screw hole (63) is arranged at the bottom end of the positioning rod (9), a positioning through hole (53) is formed in the double-hole upper die plate (5) corresponding to the positioning rods (9) on the double-hole lower die plate (6), and the double-hole upper die plate (5) is sleeved on the positioning rods (9) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422581966.0U CN223250336U (en) | 2024-10-24 | 2024-10-24 | Double-hole stamping device for filter cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422581966.0U CN223250336U (en) | 2024-10-24 | 2024-10-24 | Double-hole stamping device for filter cover plate |
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| Publication Number | Publication Date |
|---|---|
| CN223250336U true CN223250336U (en) | 2025-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422581966.0U Active CN223250336U (en) | 2024-10-24 | 2024-10-24 | Double-hole stamping device for filter cover plate |
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| CN (1) | CN223250336U (en) |
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2024
- 2024-10-24 CN CN202422581966.0U patent/CN223250336U/en active Active
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