CN204971843U - Wireless display formula auto -changing shade welds face guard and is equipped with its welding equipment - Google Patents

Abstract

The utility model discloses a wireless projection type automatic darkening welding mask, which comprises: a mask shell; a headband structure for fixing the mask shell; an automatic darkening filter fixed on the mask shell ; a wireless communication module; and a micro-projector that is data-connected to the automatic darkening filter and the wireless communication module, wherein, when the automatic darkening filter is in a transparent state, the micro-projector is suitable for Operating parameters of the auto darkening filter and/or data received via the wireless communication module are projected onto a plane in front of the welding helmet for viewing by a wearer of the welding helmet. The utility model also discloses welding equipment equipped with the wireless projection type automatic darkening welding mask.

Description

Wireless projection type automatic darkening welding helmet and welding equipment equipped with it

technical field

The utility model generally relates to a wireless welding mask with a micro-projector for displaying operating state data and a welding machine using the welding mask.

Background technique

In recent years, auto-darkening welding helmets have become widely used on welding sites. Such auto-darkening welding helmets are generally equipped with an auto-darkening filter. The main principle of the automatic darkening filter is to equip a liquid crystal panel, which is transparent before the welding arc is started, and the liquid crystal panel changes to an opaque state at the moment of arcing, so as to provide protection for the operator's eyes. Usually this automatic darkening filter is equipped with an adjustment knob or button. Before using the welding mask, the operator must take off the mask to adjust the operating parameters of the automatic darkening filter such as sensitivity, delay time, shading number, welding method, etc. Then wear the upper mask for welding operation.

In some welding work sites that require repeated changes in operating parameters (such as changing welding methods, adjusting sensitivity, etc.), repeated removal/wearing of masks greatly consumes the operator's physical strength and affects welding quality. In addition, during the process of removing the mask, setting parameters, and putting on the mask again, the operator's eyes need to constantly adjust to adapt to the changes in the surrounding light and dark environment, which may even cause serious discomfort to individual operators, thereby affecting the welding work. Seriously, it may even cause permanent damage to the eyes.

Taking the argon arc welding machine as an example, modern welding equipment generally includes electric welding machines, gas cylinders, welding torches and welding masks. Before welding, it is usually necessary to set the current, voltage, welding duration, wire feeding speed and other parameters of the electric welding machine accordingly, and there will be a display on the operation panel of the electric welding machine to display the parameter settings accordingly. The electric welding machine and the welding mask are connected via a cable, so that after the parameters of the electric welding machine and the welding mask are set, the operator starts to work wearing the welding mask.

Such a connection cable between the electric welding machine and the welding helmet may trip the operator while performing the welding work. In addition, limited by the length of the cable, it may restrict the welding work of the operator in a specific environment. In addition, due to the harsh environment of the welding site, the connection cable may be aged or broken due to frequent looping after long-term use, resulting in poor signal connection and affecting the normal use of the welding mask.

Utility model content

The utility model aims to propose an improved automatic darkening welding mask, whereby the operator can set the operating parameters of the automatic darkening filter without repeatedly taking off/wearing the mask, and at the same time allows the operator to always maintain the wearing posture That is, adjust various operating parameters to bring convenience to welding work.

According to one aspect of the present utility model, a wireless projection type automatic darkening welding mask is provided, which includes:

mask shell;

a headgear structure for securing the mask shell;

an auto-darkening filter affixed to the mask shell;

a wireless communication module; and

a micro-projector data-connected to the automatic darkening filter and the wireless communication module,

Wherein, when the automatic darkening filter is in a transparent state, the micro projector is adapted to project the operating parameters of the automatic darkening filter and/or the data received via the wireless communication module to the on a flat surface in front of the welding helmet for viewing by the wearer of the welding helmet.

Preferably, the micro-projector is integrated in the mask shell or detachably mounted on the mask shell.

Preferably, an adjustment knob is mounted on the mask housing of the welding helmet, the adjustment knob being adapted to adjust an operating parameter of the auto darkening filter via a control circuit of the welding helmet.

Preferably, the adjustment of the operating parameters of the automatic darkening filter includes: shading number adjustment, the gear is selected between 5-8/9-13; sensitivity adjustment, the gear is selected between 0-10; delay time Adjustment, gear selection between 0~10; welding mode adjustment, selection among welding, cutting and grinding.

Preferably, the wireless communication module is wirelessly connected with the wireless communication module of the electric welding machine, and the received data includes the operating parameters of the electric welding machine and/or the working time of the welding torch.

Preferably, the wireless communication module is a WIFI module, a Bluetooth module or an infrared data module.

Preferably, the projection focal length of the micro-projector can be adjusted manually or automatically, so that images can be clearly projected on a plane at a distance of 1 meter to 3 meters in front of the welding mask.

Preferably, the adjustment knob is suitable for adjusting the operating parameters of the electric welding machine and/or the working time of the welding torch through the control circuit of the welding mask. The adjustment of the operating parameters of the electric welding machine includes: current adjustment, voltage adjustment regulation and DC-AC switching.

Preferably, said micro-projector is located next to said auto dimmer on said welding helmet. Preferably, the projection focal length of the micro-projector can be adjusted manually or automatically, and the micro-projector can project black-and-white or color images.

Preferably, the auto-darkening filter is provided with a liquid crystal display for displaying operating parameters of the auto-darkening filter projected independently of the micro-projector and/or receiving via the wireless communication module of the welding helmet to the data.

According to another aspect of the present invention, there is also provided a welding equipment, which includes:

An electric welding machine equipped with a wireless communication module;

A welding torch connected to the electric welding machine via a cable;

A gas cylinder connected to the welding machine via a pipeline; and

In the aforementioned wireless projection type automatic darkening welding mask, the wireless communication module of the wireless projection type automatic darkening welding mask is wirelessly connected with the wireless communication module of the electric welding machine.

With the welding mask of the utility model, the operator can set the operating parameters of the automatic darkening filter without repeatedly taking off/wearing the mask, which reduces the discomfort caused by the operator's constant adjustment to the external light and dark environment, and at the same time makes The operator always maintains the wearing posture and adjusts various operating parameters, which brings convenience to the welding work. In addition, this improved automatic darkening welding mask is also equipped with a wireless transmission module, which is used to receive and display various operating parameter information of the electric welding machine of the welding equipment, so that the operating parameters of the electric welding machine can be directly observed by the operator wearing the mask , which is convenient for the operator to observe, while avoiding the probability of the operator being injured during the welding operation. In addition, the operating parameters of the electric welding machine are not limited by the length of the cable and are intuitively displayed on the welding mask, which can help the operator to monitor and/or adjust in real time The status of the welding machine. The operator can directly adjust the relevant operating parameters while wearing the mask, which not only improves the convenience of work, but also ensures that the eyes will not feel uncomfortable due to rapid changes in ambient light, thus improving work efficiency.

In addition, with the welding mask of the utility model, the operator can observe the operating parameters of the electric welding machine in real time or adjust the relevant parameters through the adjustment knob on the mask without taking off the mask, which is convenient for the operator to carry out on-site welding. The restraint of cables avoids the possibility of causing any danger to the operator.

Description of drawings

The foregoing and other aspects of the present invention will be more fully understood from the following detailed description in conjunction with the following drawings. It should be pointed out that the proportions of the drawings may be different for the purpose of clarity, but this will not affect the understanding of the utility model. In the attached picture:

Fig. 1 shows a schematic embodiment of welding equipment according to the present invention;

Fig. 2 schematically shows a perspective view of a wireless projection type welding helmet according to an embodiment of the present invention;

Fig. 3 schematically shows a schematic diagram of the structure of an automatic darkening filter equipped with a micro-projection device adopted in a welding mask according to the idea of the present invention;

Fig. 4 schematically shows the basic control block diagram of welding equipment according to the present utility model;

Fig. 5 schematically shows a three-dimensional exploded view of the wireless projection type welding helmet shown in Fig. 2;

Fig. 6 schematically shows a partial cutaway perspective view of the wireless projection type welding helmet shown in Fig. 2;

Fig. 7 schematically shows a perspective view of a wireless projection welding helmet according to another embodiment of the present invention.

detailed description

In the various figures of the application, structurally identical or functionally similar features are indicated by the same reference numerals.

Fig. 1 schematically shows an exemplary embodiment of the welding equipment of the present invention. The welding equipment includes an electric welder 300 , a gas cylinder 400 (such as an argon gas cylinder) and a welding torch 500 . The welding machine 300 , the gas cylinder 400 and the welding torch 500 are connected via cables known in the art. In addition, the welding equipment also includes, for example, a wireless communication module 100 a provided on the electric welding machine 300 . The wireless communication module 100a is connected to the electric welding machine circuit 301 (as shown in FIG. 4 ), and can be used to send signals related to the operating parameters of the electric welding machine such as current size, voltage size, DC or AC display and working time of the welding torch, etc., and After receiving the control instruction, the circuit of the electric welding machine can be set accordingly, so as to change the above-mentioned operating parameters of the electric welding machine accordingly.

It should be clear that the location of the wireless communication module 100a in the electric welding machine 300 is not limited to that shown in FIG.

Fig. 2 schematically shows a perspective view of a wireless projection welding helmet 1 according to an embodiment of the present invention. The welding helmet 1 includes a mask shell 40 , a head-up display type auto-dimming filter 10 mounted on the front of the mask shell 40 , and a headband structure 60 (see FIG. 5 ). The headband structure 60 is connected to the inner side of the mask shell 40 and is used to be directly worn on the operator's head to fix the mask shell 40 .

The automatic darkening filter 10 has a body on which a solar battery unit module 21 , a light control module 22 , and a liquid crystal display 23 are integrated. The liquid crystal display screen is transparent before the welding arc is started, and the liquid crystal display screen changes to an opaque state at the moment of arc start, thus providing protection for the eyes of the wearer of the welding mask.

A protective screen 20 is arranged in front of the automatic darkening filter 10 . The protective screen 20 is transparent so as to provide protection for the automatic darkening filter 10 from being damaged by flying chips generated during welding.

A control knob 30 is also provided on the mask shell 40 . The control knob 30 is connected to the automatic darkening filter 10 via a data cable not shown in the figure, and is used for adjusting its operating parameters. Here, the adjustment of the operating parameters may include the adjustment of the shading number (SHADE) of the automatic darkening filter 10, gear positions (for example, two gear ranges 5～8/9～13); sensitivity adjustment (SENSITIVITY), gear positions 0～ 10; Delay time adjustment, gear 0~10; Operation mode adjustment: welding (WELD), cutting (CUTTING) and grinding (GRIND).

As shown in FIG. 2 , the welding helmet 1 is also provided with a wireless communication module 100b. For example, the wireless communication module 100b is disposed on the mask shell 40 above the protective screen 20 . It should be clear to those skilled in the art that the wireless communication module 100b can also be arranged on any part of the mask shell 40 that will not affect signal transmission or reception, such as being hidden in the mask shell 40 .

The wireless communication module 100b can be connected with the control circuit of the welding mask shown in Figure 4, so that under the control of the knob 30, a control command for controlling the electric welding machine 300 can be sent out through the wireless communication module 100b or the wireless Any data information received by the communication module 100a is processed. The wireless communication modules 100a and 100b can be wireless networking technology-based (WIFI) modules, bluetooth modules, infrared communication modules or any other communication modules that can realize wireless data connection.

As shown in FIG. 2 , the welding helmet 1 according to the present invention further includes a micro projector 600 . In the exemplary embodiment shown in FIG. 2 , the micro-projector 600 is built into the housing 40 of the welding helmet 1 .

For example, the micro-projector adopted in the utility model can be a projection device adopting micro-laser projection technology, such as DMD (Digital Micromirror Device) of Texas Instruments (TI), LCos (Liquid Crystalon Silicon) of 3M, LCD (Liquid Crystal Display of Explay). ) technology-related products. Alternatively, any micro-projection device that can be found on the market and made using micro-electro-mechanical technology and projection technology can be used as the micro-projector of the present invention.

The micro-projector 600 is located next to the automatic darkening filter 10, is connected to the automatic darkening filter 10 via a corresponding cable, and is configured to be controlled by the control knob 30 via the control circuit 700 (see FIG. 4 ) of the welding helmet 1 .

As shown in Figures 1 and 3, the micro-projector 600 can be designed to adjust the shade number (SHADE) of the automatic darkening filter 10, the gears (for example, two gears) when the automatic darkening filter 10 is in a transparent state. Range 5～8/9～13); sensitivity adjustment (SENSITIVITY), gear 0～10; delay time adjustment, gear 0～10; operation mode adjustment: welding (WELD), cutting (CUTTING) and grinding (GRIND) Projected onto a plane in front. As shown in FIG. 3 , an independent liquid crystal display 24 is also provided on the automatic darkening filter 10 for displaying the above parameters of the automatic darkening filter 10 . Preferably, the liquid crystal display 24 is located on the side of the automatic darkening filter 10 facing the face of the wearer after the welding helmet 1 is put on by the wearer. For example, when the operator wears the welding helmet 1 for the first time, he can display the relevant parameters of the automatic darkening filter 10 through the independent liquid crystal display 24 in advance, and adjust accordingly through the knob 30, and then put on the welding helmet 1 again.

For example, during the welding operation, the wearer of the welding mask 1 can lower his head slightly and directly project the image of the above-mentioned operating parameters on the ground, so that he can directly observe the operation data and A corresponding adjustment is made via the control knob 30 .

For another example, in the process of welding operation, at the welding site, the wearer of the welding mask 1 can directly project the image of the above-mentioned operating parameters onto a vertical surface around him, such as a wall, so that he can also directly observe the operating data and A corresponding adjustment is made via the control knob 30 .

Fig. 4 shows a basic control block diagram adopted by the welding helmet according to the present invention. A battery is connected to the liquid crystal display 23 and the liquid crystal display 24 via the control circuit 700 of the welding helmet 1, and the knob 30 is also connected to the liquid crystal display 23 and the liquid crystal display 24 via the control circuit 700, so that the automatic dimming can be adjusted via the knob 30 Various operating parameters of the filter 10. In addition, the control circuit 700 is connected to the wireless communication module 100b. In this way, through the data exchange between the wireless communication modules 100a and 100b, various operating parameters of the electric welding machine 300 can also be projected by the micro projector 600 in real time. Various operating parameters of the electric welding machine 300 such as current magnitude, voltage magnitude, DC or AC display, and working time of the welding torch can be imaged in a manner similar to that shown in FIG. 2 .

As shown in FIG. 3 , the independent display on the automatic darkening filter 10 can also independently display various operating parameters of the electric welding machine 300 . For example, when the operator wears the welding helmet 1 for the first time, he can display the relevant parameters of the welding machine 300 through the independent liquid crystal display 24 in advance, and adjust accordingly through the knob 30, and then put on the welding helmet 1 again.

For example, in the process of welding operation, after the operator wears the welding helmet 1, the operating parameters of the automatic darkening filter 10 and the operating parameters of the electric welding machine 300 can be monitored via the micro-projector 600 via the wireless communication modules 100a and 100b at the same time. Projected onto a flat surface next to the wearer for easy observation by the wearer. Then, the operator presses the knob 30 once and rotates the knob 30 so that a highlight appears on the virtual image corresponding to a corresponding one of the operating parameters such as current. Then, the knob 30 can be rotated after being pressed again so as to increase or decrease the magnitude of the current parameter. After the current size is selected, press the knob 30 again to complete the adjustment. The above only introduces an exemplary embodiment of adjusting the operating parameters through the operation of the knob 30 . It should be clear to those skilled in the art that other suitable implementations of the knob 30 can be redesigned after understanding the corresponding principles.

For example, the focal length of the micro-projector 600 can be designed to be about 1 meter, preferably a distance between 1 meter and 3 meters, so that when the wearer projects the parametric image onto a plane about one meter in front of his head, he can just observe to the clearest image. Alternatively, the micro-projector can also be provided with a manual focusing device, which is convenient for the wearer of the welding mask to manually adjust the focal length so as to clearly image images on a plane with a suitable distance. It should be clear that the micro-projector used in the present invention can be a projector that projects black-and-white images or color images. Preferably, the brightness of the micro-projector can also be adjusted manually or automatically.

The welding helmet 1 according to the above-mentioned embodiment of the present invention will be further described below with reference to FIGS. 5 and 6 . The headband structure 60 is used to be directly worn on the operator's head, and plays a role of fixing the mask shell 40 . A substantially rectangular opening 40 a is opened at the front of the mask shell 40 , and the support frame 50 is, for example, detachably mounted in the opening 40 a. The automatic darkening filter 10 is fixedly mounted on the support frame 50 . It should be clear that the automatic darkening filter 10 can be fixed on the support frame 50 by any suitable fixing method such as bonding, screw connection structure, crimping structure, locking structure and the like.

The knob 30 for adjusting the automatic darkening filter 10 is provided on the mask shell 40 , which is convenient for the operator wearing the mask 1 to directly operate the knob 30 by hand to perform parameter adjustment operations. The transparent protective screen 20 is arranged in front of the automatic darkening filter 10 at the opening 40 a of the mask shell 40 . It should be clear that the transparent protective screen 20 can be fixed between the support frame 50 and the mask shell 40 in the opening 40a of the mask shell 40 by using any suitable fixing method such as bonding, screw connection structure, crimping structure, locking structure, etc. between.

In addition, an opening 40b is opened on the mask shell 40, and the opening 40b is located beside the opening 40a. The micro-projector 600 can be inserted into the opening 40b, so that its light source can project an image outward through the opening 40b. The micro-projector 600 may be fixed within the mask shell 40 in a position that does not interfere with the headgear structure 60 . In the embodiment shown in FIGS. 5 and 6, the micro-projector 600 is built-in and integrated into the welding helmet.

Fig. 7 schematically shows a welding helmet according to another embodiment. The only difference between this welding helmet and the welding helmet shown in FIGS. 5 and 6 is that an external micro-projector 601 is provided. The micro-projector 601 is detachably fixed on the mask shell 40 on the top of the mask shell 40 via a corresponding fixing structure 40 c such as a clip or the like. The relevant power supply and data cables of the micro projector 601 can also be arranged on the mask shell 40 accordingly. The benefit of this external micro-projector is that if the micro-projector breaks down, it can be replaced easily, or the manual focus device can be directly set on the micro-projector 601 to adjust the focal length, or even the micro-projector 601 The orientation can also be conveniently adjusted by the wearer without moving his head, so that the wearer can easily find a suitable projection surface for image projection. It should be clear that such an external micro-projector 601 can be arranged on any position on the mask shell 40 that does not affect the normal operation of the automatic darkening filter.

It should be clear that the micro projector 600 or 601 according to the present invention should be designed to project corresponding images only when the automatic darkening filter 10 is in a transparent state.

Alternatively, as shown in FIG. 3 , corresponding adjustment buttons can also be set on both sides of the independent liquid crystal display 24, which are used to cooperate with the knob 30 to realize the adjustment of the automatic darkening filter 10 before the welding helmet 1 is worn by the operator for the first time. And/or the parameter adjustment of electric welding machine 300.

Different from the welding helmets in the prior art, the operator can directly wear the wireless projection type welding helmet according to the utility model, and then turn the automatic darkening filter and/or the welding equipment under the condition that the automatic darkening filter 10 is in a transparent state. The operating parameters are projected onto a plane at a convenient location by the micro-projector, and the parameters are adjusted by manually adjusting the knob; then, the arc can be started directly for welding operation after the micro-projector is turned off. In addition, in the process of welding operation, in order to change the operating parameters or change the welding mode, the micro projector can be turned on again when the automatic darkening filter is in a transparent state, adjust various operating parameters accordingly, and then start the arc again for welding operation . It can be seen from this that with the wireless projection type welding mask of the present invention, the operator does not need to take off the mask, adjust the parameters, and then wear the mask as in the prior art, and can directly adjust the relevant operating parameters while wearing the mask. While improving work convenience, it ensures that the eyes will not feel uncomfortable due to rapid changes in ambient light, thus improving work efficiency. In addition, using the wireless projection type welding mask of the utility model, the operator is especially suitable for welding work in a dark environment—because the image formed by the micro-projector is clearer at this time.

In addition, for the above-mentioned welding mask equipped with the wireless communication module of the utility model, the operator is no longer limited by the cable between the welding mask and the welding machine in the prior art, avoiding any interference during welding work. At the same time, the operating parameters of the electric welding machine can be observed by the operator in real time and adjusted accordingly, which is convenient for the operator to adjust the operating parameters of the electric welding machine at any time according to the construction welding requirements, and improves the work efficiency.

While specific embodiments of the invention have been described in detail herein, they have been presented for purposes of illustration only and should not be considered limiting of the scope of the invention. Various alternatives, changes and modifications can be conceived without departing from the spirit and scope of the invention.

Claims (11)

1. A wireless projection type automatic darkening welding mask, characterized in that it comprises: mask shell; a headgear structure for securing the mask shell; an auto-darkening filter affixed to the mask shell; a wireless communication module; and a micro-projector data-connected to the automatic darkening filter and the wireless communication module, Wherein, when the automatic darkening filter is in a transparent state, the micro projector is adapted to project the operating parameters of the automatic darkening filter and/or the data received via the wireless communication module to the on a flat surface in front of the welding helmet for viewing by the wearer of the welding helmet. 2. The welding helmet according to claim 1, wherein the micro-projector is integrated in the mask shell or detachably mounted on the mask shell. 3. The welding helmet according to claim 1 or 2, characterized in that, an adjustment knob is installed on the mask shell of the welding helmet, and the adjustment knob is suitable for adjusting the welding helmet via the control circuit of the welding helmet. Operating parameters for the auto-darkening filter. 4. The welding mask according to claim 1 or 2, characterized in that the adjustment of the operating parameters of the automatic darkening filter includes: adjustment of the shading number, and the gear is selected between 5-8/9-13; Sensitivity adjustment, gear selection between 0-10; delay time adjustment, gear selection between 0-10; welding mode adjustment, selection among welding, cutting and grinding. 5. The welding mask according to claim 1 or 2, wherein the wireless communication module is wirelessly connected with the wireless communication module of the electric welding machine, and the received data includes the operating parameters of the electric welding machine and/or welding torch working hours. 6. The welding mask according to claim 1 or 2, wherein the wireless communication module is a WIFI module, a Bluetooth module or an infrared data module. 7. The welding helmet according to claim 1 or 2, wherein the projection focal length of the micro-projector can be manually or automatically adjusted to a plane at a distance of 1 to 3 meters in front of the welding helmet. Clear projection imaging. 8. The welding helmet according to claim 3, wherein the adjustment knob is adapted to adjust the operating parameters of the electric welding machine and/or the working time of the welding torch via the control circuit of the welding helmet, the operation of the electric welding machine The parameter adjustment includes: current size adjustment, voltage size adjustment, and DC-AC switching. 9. The welding helmet according to claim 1 or 2, wherein the projection focal length of the micro-projector can be adjusted manually or automatically, and the micro-projector can project black-and-white or color images. 10. The welding helmet according to claim 1 or 2, characterized in that the automatic darkening filter is provided with a liquid crystal display to display the operating parameters of the automatic darkening filter independently of the projection of the micro-projector and/or data received via the wireless communication module of the welding helmet. 11. A welding device, characterized in that it comprises: An electric welding machine equipped with a wireless communication module; A welding torch connected to the electric welding machine via a cable; A gas cylinder connected to the welding machine via a pipeline; and According to the wireless projection type automatic darkening welding helmet according to any one of the preceding claims, the wireless communication module of the wireless projection type automatic darkening welding helmet is wirelessly connected with the wireless communication module of the electric welding machine.