CN216914107U - Cross cutting machine safety arrangement - Google Patents
Cross cutting machine safety arrangement Download PDFInfo
- Publication number
- CN216914107U CN216914107U CN202220699437.9U CN202220699437U CN216914107U CN 216914107 U CN216914107 U CN 216914107U CN 202220699437 U CN202220699437 U CN 202220699437U CN 216914107 U CN216914107 U CN 216914107U
- Authority
- CN
- China
- Prior art keywords
- cutting machine
- die
- die cutting
- sensor
- safety protection
- 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
Links
Images
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The utility model relates to the technical field of die cutting machines, in particular to a safety protection device of a die cutting machine, which comprises a mounting seat, a shielding cover, a sensor and a locking assembly, wherein the mounting seat is mounted on an upper die seat of the die cutting machine, the shielding cover is movably connected with the mounting seat and can cover a part of a die cutting inlet, the sensor is arranged on the shielding cover and is used for sensing the approach of a foreign body, the locking assembly is arranged on the mounting seat and is used for enabling the shielding cover to leave the die cutting inlet and fixing the shielding cover, and the sensor is connected with a controller of the die cutting machine and cuts off the operation of the die cutting machine when the sensor is triggered. The utility model aims to overcome the problem that the safety protection device of the existing die-cutting machine is not high in use convenience in the actual application process, optimizes and integrates the safety protection function and the structure of the protection device, realizes the safety protection function, can facilitate the adjustment and the replacement of a die-cutting base material or the overhaul and maintenance of a die-cutting working interval, and is more suitable for the requirements of safety and practical convenience in the actual die-cutting process.
Description
Technical Field
The utility model relates to the technical field of die cutting machines, in particular to a safety protection device of a die cutting machine.
Background
The die-cutting machine is an important device for packaging and processing after printing, and has the working principle that a die-cutting knife, a steel knife, a hardware die, a steel wire and the like are utilized to apply certain pressure through a stamping plate to roll and cut a printing product or a paperboard into a certain shape. The cross cutting machine is at the course of the work, and the base material gets into from the entry of cross cutting machine, need the manual work to cooperate the cross cutting machine to carry out putting into of base material, change cross cutting base material or inspection base material cross cutting condition sometimes when the operation, consequently in operation process, because the operation of cross cutting machine and personnel's maloperation can have very big potential safety hazard, in case the accident appears, the condition of personal casualties and damage equipment appears in all probability.
The traditional protective measures of the die-cutting machine stop the operation of the machine by taking measures such as power failure, braking and the like after an accident occurs, have the defect of delay and lag, and can reduce loss but cannot prevent the machine from getting ill; although some protective measures of current contactless cross cutting machine can pass through the sensor response before the accident, the braking cuts off the power supply in advance, but structural design is complicated, inconvenient inspection and the change substrate operation in subsequent cross cutting space of carrying out, therefore, in order to optimize the safety arrangement of cross cutting machine, need synthesize safety protection function and protection device's structure, make cross cutting machine safety arrangement's structure simple and practical more, make it cross cutting entry form certain safety and block at cross cutting during operation, there is the foreign matter to be close to and can shut down fast, simultaneously can be applicable to putting into to the substrate more conveniently after the cross cutting, change actual operation demands such as cross cutting substrate or inspection substrate cross cutting situation, thereby more be applicable to the user demand of security and the practicality convenience of actual cross cutting in-process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problem that the conventional safety protection device of the die-cutting machine is not high in use convenience in the actual application process, and provides the safety protection device of the die-cutting machine, which optimizes and integrates the safety protection function and the structure of the protection device, can realize the safety protection function during die cutting, can facilitate the adjustment and replacement of a die-cutting base material after die cutting, or carries out maintenance on a die-cutting working interval, and is more suitable for the requirements of safety and practical convenience in the actual die cutting process.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides a cross cutting machine safety arrangement, is including installing in the mount pad of cross cutting machine upper die base, with mount pad swing joint and can cover the sheltering from lid of a part cross cutting entry, locate to shelter from covering and cover and be used for responding to the sensor that the foreign matter is close to and locate on the mount pad and be used for making to shelter from the lid and leave cross cutting entry and with its fixed locking subassembly, the sensor is connected with the controller of cross cutting machine and cuts off the operation of cross cutting machine when the sensor detects the foreign matter and is close to the cross cutting entry.
It should be noted that when the die-cutting machine is in operation, the die-cutting working section of the base material die-cutting machine needs to pass through, the upper die base of the die-cutting machine is driven by the driving device to press and cut towards the lower die base, the working section is arranged between the upper die base and the lower die base of the die-cutting machine, and one end of the base material for feeding is a die-cutting inlet, because the die-cutting knife is arranged on the upper die base, if in the die-cutting process, the limb is prevented from being extended into the working section from the die-cutting inlet by carelessness of a worker to cause bleeding accidents, or objects which are not base materials are prevented from entering the die-cutting working section to cause damage and production accidents of the production die-cutting knife, the utility model can prevent foreign materials from entering the working section through the die-cutting inlet by fixing the mounting base on the upper die base and shielding the cover to form a barrier at the die-cutting inlet, and can emergently stop the operation process of the die-cutting machine through the detection induction of the sensor when the foreign materials are close to or about to enter the die-cutting inlet, the safety accidents which can happen are reduced to the maximum extent;
on the other hand, when the die cutting machine stops working, the die cutting base material needs to be adjusted and replaced, or the die cutting working interval needs to be overhauled and maintained, for the working efficiency of the operation, the die cutting inlet is not shielded, and the operation is more convenient to carry out.
As a preferred scheme, the locking subassembly is equipped with the lock post with couple looks adaptation including the fixed axle of locating mount pad one side lateral wall to and swing joint in the epaxial couple of fixed, shelter from on the lateral wall of one side of lid.
Like this, will shelter from the lid and open at needs to when fully exposing the cross cutting entry, the accessible couple will shelter from the lock post of lid one side and hang and fix, shelter from the lid and be close to the mount pad and break away from the cross cutting entry, the adjustment and the change of the cross cutting substrate of being convenient for, perhaps overhaul the maintenance to cross cutting work interval, adopt mechanical type locking subassembly simple structure, the simple operation.
As another preferred scheme, the locking subassembly is equipped with the second magnetism and inhales the piece including the first magnetism that locates on the mount pad, and the position that covers and inhale the piece with first magnetism corresponds is equipped with the second magnetism. Like this, can break away from the cross cutting entry with sheltering from the lid through the principle of magnetism and inhale, simple structure, the simple operation.
Furthermore, the quantity of locking subassembly is a set of at least, and when the quantity of locking subassembly was greater than a set of, locking subassembly evenly distributed was on the mount pad. Like this, when designing multiunit locking subassembly, can be more firm be used for fixed sheltering from the lid, improve the stability of using.
Further, the sensor is one of an infrared sensor, a light curtain sensor and a laser sensor.
Furthermore, the quantity of sensor is a set at least, and when the quantity of sensor was greater than a set, the sensor evenly set up on the mount pad.
It should be noted that the sensors can select the installation quantity and position according to the type of the installed sensor, for example, if the light curtain sensor and the infrared sensor are installed, the sensors can be respectively and symmetrically installed on the side walls of the two sides of the installation base to fully cover the safe triggering range, if the laser sensor is installed, the sensors can be selected to be respectively and symmetrically installed on the side walls of the two sides of the installation base, and also can be selected to be installed in the position easy to trigger, so as to meet the requirement of safety protection. The sensor response is sensitive, can cut off the operation of cross cutting machine immediately after triggering, and convenient to use has the guard action to the operator before the accident happens, has foresight, safe and reliable's advantage.
Furthermore, the shielding cover and the mounting seat are connected through a hinge.
Further, the mounting seat is connected with the die cutting machine through threads.
Furthermore, a leveling bubble is arranged on the mounting seat. Therefore, the leveling bubble can facilitate the installation of the device and make installation and debugging well.
Furthermore, a photoelectric alarm is further arranged on the mounting seat and connected with a controller of the die cutting machine. Like this, after the sensor detects the foreign matter and is close to the cross cutting entry, not only can cut off the operation of cross cutting machine immediately, can also indicate other staff to handle abnormal conditions as early as possible, resume production as early as possible, guarantee production efficiency.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the mounting seat is fixed on the upper die base, the shielding cover forms a partition at the die cutting inlet, foreign matters can be prevented from entering a working area through the die cutting inlet, and meanwhile, when the foreign matters approach or are about to enter the die cutting inlet, the working process of the die cutting machine can be stopped emergently through detection and induction of the sensor, possible safety accidents are reduced to the maximum extent, the use is convenient, the mounting seat has a protection effect on operators before the accidents occur, and the mounting seat has the advantages of foresight, safety and reliability.
(2) According to the utility model, through designing the locking assembly, when a die-cutting inlet needs to be opened, the shielding cover can be opened through the locking assembly and is fixed on the mounting seat, so that the adjustment and the replacement of a die-cutting base material are facilitated, or the maintenance is carried out on a die-cutting working interval.
Drawings
FIG. 1 is a schematic view of the entire structure of embodiment 1;
FIG. 2 is a schematic view of the structure of FIG. 1 viewed from A;
FIG. 3 is a schematic view showing a folded state of embodiment 1;
FIG. 4 is a schematic diagram of an application of example 1;
fig. 5 is a schematic structural view of embodiment 3.
The graphic symbols are illustrated as follows:
the method comprises the following steps of 1-mounting seat, 2-shielding cover, 21-hinge, 3-sensor, 41-fixed shaft, 42-hook, 43-lock column, 44-first magnetic attraction piece, 45-second magnetic attraction piece, 5-die cutting machine, 6-upper die holder, 7-lower die holder and 8-die cutting inlet.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1
As shown in fig. 1 to 4, a die-cutting machine safety protection device comprises a mounting base 1 installed on an upper die base 6 of a die-cutting machine 5, a shielding cover 2 movably connected with the mounting base 1 and capable of covering a part of a die-cutting inlet 8, a sensor 3 arranged on the shielding cover 2 and used for sensing approach of foreign matters, and a locking assembly arranged on the mounting base 1 and used for enabling the shielding cover 2 to leave the die-cutting inlet 8 and fix the same, wherein the sensor 3 is connected with a controller of the die-cutting machine 5 and cuts off operation of the die-cutting machine 5 when the sensor 3 detects that the foreign matters approach the die-cutting inlet.
As shown in fig. 4, when the die cutting machine 5 is in operation, it is necessary to pass through the die cutting working space of the substrate die cutting machine 5, the upper die base 6 of the die cutting machine 5 is driven by the driving device to press and cut towards the lower die base 7, a working space is formed between the upper die base 6 and the lower die base 7 of the die cutting machine 5, one end of the substrate material is a die cutting inlet 8, because the die cutting knife is arranged on the upper die base 6, if in the die cutting process, it is intended to prevent a bleeding event caused by the careless extension of a limb from the die cutting inlet into the working space by a worker, or prevent a non-substrate object from entering the die cutting working space to cause damage and production accidents of the production die cutting knife, in this embodiment, the die cutting mounting base 1 is fixed on the upper die base 6, the shielding cover 2 forms a barrier at the die cutting inlet 8, so as to prevent a foreign object from entering the working space through the die cutting inlet 8, and at the same time when a foreign object is close to or about to enter the die cutting inlet 8, the operation process of the die-cutting machine 5 can be stopped emergently through the detection and induction of the sensor 3, and possible safety accidents are reduced to the maximum extent;
on the other hand, need adjust and change when the cross cutting substrate, perhaps need overhaul when maintaining cross cutting work interval, to the work efficiency of above-mentioned operation, the cross cutting entry does not shelter from more conveniently and carries out above-mentioned operation this moment, this embodiment is through designing the locking subassembly, can be when the open cross cutting entry 8 of needs, will shelter from lid 2 through the locking subassembly and open and will shelter from lid 2 and be fixed in on mount pad 1, the adjustment and the change of the cross cutting substrate of being convenient for like this, perhaps overhaul the maintenance to cross cutting work interval, structural design is ingenious simple, to actual use, can more be applicable to the demand of security and practical convenience in the actual cross cutting process.
As shown in fig. 1 to 3, the locking assembly includes a fixed shaft 41 disposed on a side wall of the mounting base 1, and a hook 42 movably connected to the fixed shaft 41, and a locking column 43 adapted to the hook 42 is disposed on a side wall of the shielding cover 2.
In this embodiment, the number of locking components is a set, and the locking components are arranged on the side wall of one side of the mounting base 1.
Like this, will shelter from lid 2 to open at needs to fully expose the cross cutting entry 8 time, accessible couple 42 will shelter from the lock post 43 of lid 2 one side and hang and fix, shelter from lid 2 and be close to mount pad 1 and break away from cross cutting entry 8, the adjustment and the change of the cross cutting substrate of being convenient for, perhaps overhaul the maintenance to cross cutting work interval, adopt mechanical type locking subassembly simple structure, the simple operation.
In this embodiment, the sensor 3 is an infrared sensor.
In this embodiment, the number of the sensors 3 is one, and the sensors 3 are disposed on a side wall of the mounting base 1.
In this embodiment, the sensor 3 response is sensitive, can cut off the operation of cross cutting machine 5 immediately after triggering, and convenient to use has the guard action to the operator before the accident takes place, has foresight, safe and reliable's advantage.
In this embodiment, the shield cover 2 and the mount base 1 are connected by a hinge 21.
In this embodiment, the mounting base 1 is connected to the die cutting machine through threads.
Example 2
As shown in fig. 1 to 4, a die cutting machine safety protection device includes a mounting base 1 mounted on an upper die base 6 of a die cutting machine 5, a shielding cover 2 movably connected to the mounting base 1 and capable of covering a part of a die cutting inlet 8, a sensor 3 disposed on the shielding cover 2 and used for sensing approach of a foreign object, and a locking assembly disposed on the mounting base 1 and used for enabling the shielding cover 2 to leave the die cutting inlet 8 and fix the same, wherein the sensor 3 is connected to a controller of the die cutting machine 5 and cuts off operation of the die cutting machine 5 when the sensor 3 detects that the foreign object approaches the die cutting inlet.
As shown in fig. 4, when the die cutting machine 5 is in operation, it is necessary to pass through the die cutting working space of the base material die cutting machine 5, the upper die base 6 of the die cutting machine 5 is driven by the driving device to press-cut to the lower die base 7, a working space is formed between the upper die base 6 and the lower die base 7 of the die cutting machine 5, and one end of the base material which is fed is a die cutting inlet 8, since the die cutting knife is arranged on the upper die base 6, if in the die cutting process, it is necessary to prevent a limb from carelessly extending into the working space from the die cutting inlet by a worker, or prevent a non-base material object from entering into the die cutting working space to cause damage and production accidents of the production die cutting knife, in this embodiment, the mounting base 1 is fixed on the upper die base 6, the shielding cover 2 forms a barrier at the die cutting inlet 8, so as to prevent a foreign material from entering into the working space through the die cutting inlet 8, and at the same time when a foreign material is close to or about to enter into the die cutting inlet 8, the operation process of the die-cutting machine 5 can be stopped emergently by the triggering induction of the sensor 3, and the possible safety accidents are reduced to the maximum extent;
on the other hand, need adjust and change when the cross cutting substrate, perhaps need overhaul when maintaining cross cutting work interval, to the work efficiency of above-mentioned operation, the cross cutting entry does not shelter from more conveniently and carries out above-mentioned operation this moment, this embodiment is through designing the locking subassembly, can be when the open cross cutting entry 8 of needs, will shelter from lid 2 through the locking subassembly and open and will shelter from lid 2 and be fixed in on mount pad 1, the adjustment and the change of the cross cutting substrate of being convenient for like this, perhaps overhaul the maintenance to cross cutting work interval, structural design is ingenious simple, to actual use, can more be applicable to the demand of security and practical convenience in the actual cross cutting process.
As shown in fig. 1 to 3, the locking assembly includes a fixed shaft 41 disposed on a side wall of the mounting base 1, and a hook 42 movably connected to the fixed shaft 41, and a locking column 43 adapted to the hook 42 is disposed on a side wall of the shielding cover 2.
In this embodiment, the number of locking components is a set, and the locking components are arranged on the side wall of one side of the mounting base 1.
Like this, will shelter from lid 2 to open at needs to fully expose the cross cutting entry 8 time, accessible couple 42 will shelter from the lock post 43 of lid 2 one side and hang and fix, shelter from lid 2 and be close to mount pad 1 and break away from cross cutting entry 8, the adjustment and the change of the cross cutting substrate of being convenient for, perhaps overhaul the maintenance to cross cutting work interval, adopt mechanical type locking subassembly simple structure, the simple operation.
In this embodiment, the sensor 3 is an infrared sensor.
In this embodiment, the number of the sensors 3 is one, and the sensors 3 are disposed on a side wall of the mounting base 1.
In this embodiment, the sensor 3 response is sensitive, can cut off the operation of cross cutting machine 5 immediately after triggering, and convenient to use has the guard action to the operator before the accident takes place, has foresight, safe and reliable's advantage.
In this embodiment, the shield cover 2 and the mount base 1 are connected by a hinge 21.
In this embodiment, the mounting base 1 is connected to the die cutting machine through threads.
In this embodiment, the mounting base 1 is further provided with a leveling bubble. Like this, can make things convenient for this embodiment to install and well installation and debugging through the air level.
In this embodiment, the mounting base 1 is further provided with a photoelectric alarm, and the photoelectric alarm is connected with a controller of the die cutting machine 5. Like this, after sensor 3 sensed the foreign matter and is close to the cross cutting entry, not only can cut off the operation of 5 machines of cross cutting immediately, can also indicate other staff to handle abnormal conditions as early as possible, resume production as early as possible, guarantee production efficiency.
Example 3
This embodiment is similar to embodiment 2, except that in this embodiment: the locking subassembly is including locating first magnetism piece 44 of inhaling on the mount pad 1, and the position that corresponds with first magnetism piece 44 on the shielding cover 2 is equipped with second magnetism and inhales piece 45. Like this, can break away from cross cutting entry 8 with sheltering from lid 2 through the principle of magnetism and inhale, simple structure, the simple operation.
Other structures and principles of this embodiment are the same as those of embodiment 2.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a cross cutting machine safety arrangement, its characterized in that, including install in mount pad (1) of cross cutting machine upper die base, with mount pad (1) swing joint and can cover sheltering from lid (2) of some cross cutting entry, locate shelter from on lid (2) and be used for responding to sensor (3) that the foreign matter is close to, and locate just be used for making on mount pad (1) shelter from lid (2) and leave cross cutting entry and with its fixed locking subassembly, sensor (3) are connected with the controller of cross cutting machine and sensor (3) detect the foreign matter and cut off the operation of cross cutting machine when being close to the cross cutting entry.
2. The die cutting machine safety protection device of claim 1, wherein the locking assembly comprises a fixing shaft (41) arranged on one side wall of the mounting base (1) and a hook (42) movably connected to the fixing shaft (41), and a locking column (43) matched with the hook (42) is arranged on one side wall of the shielding cover (2).
3. The die cutting machine safety protection device of claim 1, wherein the locking assembly comprises a first magnetic attraction piece (44) arranged on the mounting base (1), and a second magnetic attraction piece (45) is arranged on the shielding cover (2) at a position corresponding to the first magnetic attraction piece (44).
4. The die cutting machine safety protection device of claim 2 or 3, characterized in that the number of the locking assemblies is at least one, and when the number of the locking assemblies is more than one, the locking assemblies are uniformly distributed on the mounting seat (1).
5. The die cutting machine safety protection device of claim 1, wherein the sensor (3) is one of an infrared sensor, a light curtain sensor, and a laser sensor.
6. The die cutting machine safety protection device according to claim 5, characterized in that the number of the sensors (3) is at least one group, and when the number of the sensors (3) is more than one group, the sensors (3) are uniformly arranged on the mounting seat (1).
7. The die cutting machine safety protection device of claim 1, wherein the shielding cover (2) and the mounting base (1) are connected through a hinge (21).
8. The die cutting machine safety protection device of claim 1, wherein the mounting base (1) is in threaded connection with the die cutting machine.
9. The die cutting machine safety protection device according to claim 1, characterized in that a leveling bubble is further arranged on the mounting seat (1).
10. The die cutting machine safety protection device of claim 1, wherein a photoelectric alarm is further arranged on the mounting base (1), and the photoelectric alarm is connected with a controller of the die cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699437.9U CN216914107U (en) | 2022-03-28 | 2022-03-28 | Cross cutting machine safety arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699437.9U CN216914107U (en) | 2022-03-28 | 2022-03-28 | Cross cutting machine safety arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216914107U true CN216914107U (en) | 2022-07-08 |
Family
ID=82228167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220699437.9U Active CN216914107U (en) | 2022-03-28 | 2022-03-28 | Cross cutting machine safety arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216914107U (en) |
-
2022
- 2022-03-28 CN CN202220699437.9U patent/CN216914107U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4060160A (en) | Safety guard for power operated machine | |
| CN207390727U (en) | A kind of elevator manual emergency brake apparatus | |
| CN216914107U (en) | Cross cutting machine safety arrangement | |
| CN202881665U (en) | Intelligent monitoring device for electric cabinet of embroidery machine | |
| CN213846065U (en) | Non-electric alarm device for insulating rod operation method | |
| CN105590407A (en) | Live-line switchgear partition anti-straying device | |
| CN201456107U (en) | Safety optical grating of paper cutting machine with automatic procedures | |
| US4208772A (en) | Automatic metal working machine part counter | |
| CN205871208U (en) | 3D printer high temperature protection induction system | |
| CN104410040A (en) | Quick breaking device for power approach of engineering vehicle | |
| CN210400343U (en) | Device for dynamically detecting height of pedestrian | |
| CN212484567U (en) | Novel machine tool auxiliary alarm device | |
| CN208937649U (en) | The system for detecting power dispatching automation equipment fault | |
| CN106395542A (en) | Friction hoist overwinding-preventing and failure alarm system based on ABS | |
| CN218614816U (en) | Cutting line state detection device for slicing machine in photovoltaic field | |
| CN220210530U (en) | Urban gas station monitoring device | |
| CN219322484U (en) | Monitoring camera mounting base | |
| CN218783394U (en) | Low-voltage distribution cabinet casing electrification indicating device | |
| CN211619681U (en) | Elevator braking system state monitoring device | |
| CN218136699U (en) | A outer protective structure for plate shearing machine goes up infrared induction device | |
| CN220412572U (en) | Automatic detection device is inserted to staircase skirt panel foreign matter | |
| CN215954462U (en) | Adjustable induction electricity acousto-optic early warning device and safety helmet | |
| CN208848347U (en) | A kind of BOPS sheet material trimming guide margin warning device | |
| CN209118468U (en) | The anti-climbing detection alarm device of underground coal conveyer | |
| CN220784263U (en) | Protection device of electric chain saw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |