CN112518418A

CN112518418A - Safety protection device for punching of television backboard

Info

Publication number: CN112518418A
Application number: CN202011374721.0A
Authority: CN
Inventors: 时想
Original assignee: Nanjing Laitian Trading Co ltd
Current assignee: Nanjing Laitian Trading Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-19

Abstract

The invention relates to the technical field of television backboard processing, and discloses a safety protection device for punching a television backboard, which comprises a protection shell and a jacking block, wherein a positive plate is fixedly connected inside the protection shell, a negative plate is fixedly connected inside the protection shell, a first electromagnet is fixedly connected inside the protection shell, a movable elongated slot is formed inside the protection shell, and a first reset spring is fixedly connected on the inner wall of the movable elongated slot. This safety device for punching of TV set backplate, when protective housing bottom complete with TV set backplate surface contact, the inside inclosed dim light environment that is of protective housing, the light can not be responded to the photo resistance, first electro-magnet outage this moment, first magnet piece shifts up along the activity elongated slot, drive first dielectric medium board shifts up, the switch-on of positive plate and negative plate this moment, thereby control system's route, drive assembly drives the drill bit that punches, the holistic security performance of equipment has been improved, prevent accidental injury operating personnel.

Description

Safety protection device for punching of television backboard

Technical Field

The invention relates to the technical field of television backboard processing, in particular to a safety protection device for punching a television backboard.

Background

At present, the liquid crystal display television is widely used, the thickness of the liquid crystal display television is thinner and thinner, the processing requirement on the television backboard is more and more precise, and the processing process of the television backboard mainly comprises a punch forming process and a drilling process, wherein the punch forming process is to punch a metal plate into the television backboard with a characteristic shape through a punch, and the drilling process is to drill required through holes on the television backboard through an electric drill.

The drill bit of the existing drilling equipment is generally exposed outside, and in some machining procedures, manual operation is usually required, so that potential safety hazards are easily caused, the punching force of the drilling equipment is very large, and once a safety accident occurs, consequences are unreasonable, so that the safety protection device for punching the back plate of the television is provided to solve the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a safety protection device for punching a television backboard, which has the advantages of solving the potential safety hazard and improving the safety of operators, and solves the problem that the potential safety hazard is easily caused because the drill bit of the existing drilling equipment is generally exposed and usually needs manual operation in some machining procedures.

(II) technical scheme

In order to solve the potential safety hazard and improve the safety of operators, the invention provides the following technical scheme: a safety protection device for punching a television back plate comprises a protection shell and a top pressing block, wherein a positive plate is fixedly connected inside the protection shell, a negative plate is fixedly connected inside the protection shell, a first electromagnet is fixedly connected inside the protection shell, a movable long groove is formed inside the protection shell, a first reset spring is fixedly connected to the inner wall of the movable long groove, a first magnet block is fixedly connected to the bottom of the first reset spring, a first dielectric plate is fixedly connected inside the first magnet block, a pushing long groove is formed inside the protection shell, a top pressing block is movably connected inside the pushing long groove, a second dielectric plate is fixedly connected to the top of the top pressing block, a limiting clamping groove is formed inside the top pressing block, a second electromagnet is fixedly connected inside the protection shell, a second reset spring is fixedly connected to the inner wall of the pushing long groove, a clamping shaft corresponding to the limiting clamping groove is fixedly connected, the top pressure piece bottom fixedly connected with decides the contact, decides contact bottom fixedly connected with connecting spring, connecting spring bottom fixedly connected with moving contact, protection casing inner wall fixedly connected with photo resistance.

Preferably, the positive plate distributes in the protection casing left side, and the negative plate distributes on the protection casing right side, and negative plate electric connection to control system, thereby control system's on-off way through the switch-on of positive plate and negative plate.

Preferably, the first dielectric plate and the second dielectric plate have the same cross-sectional area, the positive electrode plate and the negative electrode plate have the same cross-sectional area, and the first dielectric plate has a cross-sectional area larger than the positive electrode plate, and the positive electrode plate and the negative electrode plate are controlled to be connected by the positional displacement of the first dielectric plate and the second dielectric plate.

Preferably, the photoresistor is electrically connected to an external power supply, the external power supply is electrically connected to the first electromagnet, the magnetism of the corresponding surface of the first electromagnet and the first magnet block is the same, when the photoresistor senses light, the resistance value is reduced, and at the moment, the first electromagnet is electrified to have magnetism and generate repulsive force with the first magnet block.

Preferably, the moving contact is electrically connected to the second electromagnet, the clamping shaft is made of a ferromagnetic material, the magnetism of the corresponding surface of the second electromagnet and the clamping shaft is opposite, and when the moving contact is communicated with the fixed contact, the second electromagnet is electrified to have magnetism and generate attraction with the clamping shaft.

Preferably, pass the elongated slot outside fixedly connected with holding tank, joint axle swing joint is inside the holding tank, and the joint axle is used for the position of fixed top briquetting, prevents that the maloperation from resulting in the removal of top briquetting.

Preferably, the protective housing has an installation cavity inside, and roof fixedly connected with drive assembly in the installation cavity, drive assembly output swing joint have a drill bit, and protective housing fixes behind the television backboard surface of treating processing, and drive assembly drives drill bit and punches.

(III) advantageous effects

Compared with the prior art, the invention provides a safety protection device for punching of a television backboard, which has the following beneficial effects:

1. this safety device for punching of TV set backplate, along with protective housing descends, when moving contact and fixed contact switch-on, the second electromagnetism iron circular telegram has magnetism, drives the joint axle and removes along advancing the elongated slot outside, releases the roof pressure piece, along with protective housing further descends, and the roof pressure piece is along advancing the elongated slot rebound, upwards passes second dielectric plate, provides first step safeguard function.

2. This safety device for punching of TV set backplate, when protective housing bottom complete with TV set backplate surface contact, the inside inclosed dim light environment that is of protective housing, the light can not be responded to the photo resistance, first electro-magnet outage this moment, first magnet piece shifts up along the activity elongated slot, drive first dielectric medium board shifts up, the switch-on of positive plate and negative plate this moment, thereby control system's route, drive assembly drives the drill bit that punches, the holistic security performance of equipment has been improved, prevent accidental injury operating personnel.

Drawings

FIG. 1 is a schematic side view of a second electromagnet according to the present invention in a power-off state;

FIG. 2 is a schematic diagram of a side view of a second electromagnet in accordance with the present invention;

FIG. 3 is a schematic side view of the first magnet block in a power-off state according to the present invention;

FIG. 4 is a side view of a press block of the present invention.

In the figure: 1. a protective housing; 2. a positive plate; 3. a negative plate; 4. a first electromagnet; 5. a movable long slot; 6. a first return spring; 7. a first magnet block; 8. a first dielectric plate; 9. a long pushing groove; 10. pressing the block; 11. a second dielectric plate; 12. a limiting clamping groove; 13. a second electromagnet; 14. a second return spring; 15. clamping the shaft; 16. fixing a contact; 17. a connecting spring; 18. a moving contact; 19. a light dependent resistor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a safety protection device for punching holes on a tv back plate comprises a protection casing 1 and a top pressing block 10, wherein a positive plate 2 is fixedly connected inside the protection casing 1, a negative plate 3 is fixedly connected inside the protection casing 1, the positive plate 2 is distributed on the left side of the protection casing 1, the negative plate 3 is distributed on the right side of the protection casing 1, the negative plate 3 is electrically connected to a control system, an open/close circuit of the control system is controlled by connecting the positive plate 2 and the negative plate 3, a first electromagnet 4 is fixedly connected inside the protection casing 1, a movable elongated slot 5 is formed inside the protection casing 1, a first return spring 6 is fixedly connected to the inner wall of the movable elongated slot 5, a first magnet block 7 is fixedly connected to the bottom of the first return spring 6, a first dielectric plate 8 is fixedly connected inside the first magnet block 7, and the sectional areas of the first dielectric plate, the cross-sectional areas of the positive electrode plate 2 and the negative electrode plate 3 are the same, the cross-sectional area of the first dielectric plate 8 is larger than that of the positive electrode plate 2, and the connection between the positive electrode plate 2 and the negative electrode plate 3 is controlled by the position movement of the first dielectric plate 8 and the second dielectric plate 11;

a pushing elongated slot 9 is formed in the protective shell 1, a pushing block 10 is movably connected in the pushing elongated slot 9, a second dielectric plate 11 is fixedly connected to the top of the pushing block 10, a limiting clamping slot 12 is formed in the pushing block 10, a second electromagnet 13 is fixedly connected in the protective shell 1, a second reset spring 14 is fixedly connected to the inner wall of the pushing elongated slot 9, a clamping shaft 15 corresponding to the limiting clamping slot 12 is fixedly connected to the outer side of the second reset spring 14, a containing slot is fixedly connected to the outer side of the pushing elongated slot 9, the clamping shaft 15 is movably connected in the containing slot, the clamping shaft 15 is used for fixing the position of the pushing block 10 to prevent the pushing block 10 from moving due to misoperation, a fixed contact 16 is fixedly connected to the bottom of the pushing block 10, a connecting spring 17 is fixedly connected to the bottom of the fixed contact 16, a movable contact 18 is fixedly connected, the clamping shaft 15 is made of ferromagnetic materials, the magnetism of the corresponding surface of the second electromagnet 13 and the clamping shaft 15 is opposite, when the moving contact 18 is communicated with the fixed contact 16, the second electromagnet 13 is electrified and has magnetism, attraction force is generated between the second electromagnet and the clamping shaft 15, the inner wall of the protective shell 1 is fixedly connected with a photosensitive resistor 19, the photosensitive resistor 19 is electrically connected to an external power supply, the external power supply is electrically connected to a first electromagnet 4, the magnetism of the corresponding surface of the first electromagnet 4 and the first magnet block 7 is the same, when the photosensitive resistor 19 senses light, the resistance value is reduced, at the moment, the first electromagnet 4 is electrified and has magnetism, repulsion force is generated between the first electromagnet 4 and the first magnet block 7, an installation cavity is arranged in the protective shell 1, the top wall in the installation cavity is fixedly connected with a driving assembly, the output end of the driving assembly is movably connected with a punching, the driving assembly drives the punching drill bit to punch.

The working principle is as follows: fixing a television backboard to be processed on an operation table board, wherein the top of the protective shell 1 is fixedly connected with a lifting driving device, the protective shell 1 is driven to be pressed down to the surface of the television backboard by the lifting driving device, the movable contact 18 is contacted with the surface of the television backboard along with the descending of the protective shell 1, the movable contact 18 is gradually contacted with the fixed contact 16, when the movable contact 18 is communicated with the fixed contact 16, the second electromagnet 13 is electrified and has magnetism, the clamping shaft 15 is driven to move outwards along the pushing long groove 9, the jacking block 10 is released, and the jacking block 10 moves upwards along the pushing long groove 9 along with the further descending of the protective shell 1, so that the second dielectric plate 11 is pushed upwards;

when the bottom of the protective shell 1 is completely contacted with the surface of the television back panel, the inside of the protective shell 1 is a closed dark light environment, the light cannot be sensed by the photoresistor 19, the first electromagnet 4 is powered off at the moment, the first magnet block 7 moves upwards along the movable long groove 5 under the driving of the first reset spring 6 to drive the first dielectric plate 8 to move upwards, the positive plate 2 and the negative plate 3 are connected at the moment, the passage of the control system is controlled, the driving assembly drives the punching drill to punch, the overall safety performance of the equipment is improved, and operators are prevented from being accidentally injured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a TV set backplate punches and uses safety device, includes protecting sheathing (1) and roof pressure piece (10), its characterized in that: the protection device is characterized in that a positive plate (2) is fixedly connected inside the protection shell (1), a negative plate (3) is fixedly connected inside the protection shell (1), a first electromagnet (4) is fixedly connected inside the protection shell (1), a movable elongated slot (5) is formed inside the protection shell (1), a first reset spring (6) is fixedly connected to the inner wall of the movable elongated slot (5), a first magnet block (7) is fixedly connected to the bottom of the first reset spring (6), a first dielectric plate (8) is fixedly connected inside the first magnet block (7), a pushing elongated slot (9) is formed inside the protection shell (1), a pushing block (10) is movably connected inside the pushing elongated slot (9), a second dielectric plate (11) is fixedly connected to the top of the pushing block (10), a limiting clamping groove (12) is formed inside the pushing block (10), and a second electromagnet (13) is fixedly connected inside the protection shell (1), a second reset spring (14) is fixedly connected to the inner wall of the pushing long groove (9), a clamping shaft (15) corresponding to the limiting clamping groove (12) is fixedly connected to the outer side of the second reset spring (14), a fixed contact (16) is fixedly connected to the bottom of the top pressing block (10), a connecting spring (17) is fixedly connected to the bottom of the fixed contact (16), a moving contact (18) is fixedly connected to the bottom of the connecting spring (17), and a photosensitive resistor (19) is fixedly connected to the inner wall of the protective shell (1).

2. The safety device for punching the back plate of the television set according to claim 1, wherein: the positive plate (2) is distributed on the left side of the protective shell (1), the negative plate (3) is distributed on the right side of the protective shell (1), and the negative plate (3) is electrically connected to the control system.

3. The safety device for punching the back plate of the television set according to claim 1, wherein: the cross sections of the first dielectric plate (8) and the second dielectric plate (11) are the same, the cross sections of the positive plate (2) and the negative plate (3) are the same, and the cross section of the first dielectric plate (8) is larger than that of the positive plate (2).

4. The safety device for punching the back plate of the television set according to claim 1, wherein: the photoresistor (19) is electrically connected to an external power supply, the external power supply is electrically connected to the first electromagnet (4), and the magnetism of the corresponding surface of the first electromagnet (4) and the first magnet block (7) is the same.

5. The safety device for punching the back plate of the television set according to claim 1, wherein: the moving contact (18) is electrically connected to the second electromagnet (13), the clamping shaft (15) is made of ferromagnetic materials, and the magnetism of the corresponding surface of the second electromagnet (13) and the clamping shaft (15) is opposite.

6. The safety device for punching the back plate of the television set according to claim 1, wherein: an accommodating groove is fixedly connected to the outer side of the pushing long groove (9), and a clamping shaft (15) is movably connected to the inside of the accommodating groove.

7. The safety device for punching the back plate of the television set according to claim 1, wherein: the protective casing (1) is internally provided with an installation cavity, the top wall in the installation cavity is fixedly connected with a driving assembly, and the output end of the driving assembly is movably connected with a punching drill bit.