Protective device for metal cutting

Abstract

The utility model relates to a protective device for metal cutting, which belongs to the field of metal cutting and comprises a cutting machine main body, a protective mechanism convenient for adjusting protective height is arranged on the outer side of the cutting machine main body, a smoke exhaust mechanism for collecting and purifying cutting smoke dust is arranged on the upper surface of the cutting machine main body, and the protective mechanism comprises a protective half shell. According to the protection device for metal cutting, the protection mechanism is arranged, metal fragments and sparks which are possibly splashed and generated in the cutting process are protected, so that the safety of operators is ensured, and when the cutting machine body works, the bottoms of the protection side plates make contact with metal, so that the metal is prevented from splashing. By means of the mode, the protection side plates can be located on the outer side of the cutting machine all the time to protect operators from being injured by splashing and sparks possibly generated in the metal cutting process, and the protection device can adapt to workpieces of different heights and sizes and does not affect movable cutting of the cutting machine through the design of the springs and the push blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting, in particular to a protection device for metal cutting. Background Art

[0002] With the development of modern mechanical processing industry, the requirements for the quality and precision of cutting are constantly increasing, and the requirements for improving production efficiency, reducing production costs, and having a highly intelligent automatic cutting function are also on the rise. The development of numerical control cutting machines must meet the requirements of the development of modern mechanical processing industry. Cutting machines are divided into flame cutting machines, plasma cutting machines, laser cutting machines, water cutting machines, etc. Laser cutting machines have the fastest efficiency, the highest cutting precision, and generally a smaller cutting thickness. Plasma cutting machines also have a fast cutting speed and a certain slope on the cutting surface. Flame cutting machines are suitable for carbon steel materials with a larger thickness. Laser cutting machines have the fastest efficiency, the highest cutting precision, and generally a smaller cutting thickness.

[0003] For example, a protection device for metal cutting disclosed in the Chinese Patent Publication No. (CN209256621 U) includes a main body of the protective cover. A circular sliding groove is formed on the front inner surface of the main body of the protective cover. A dial block device is slidably installed inside the circular sliding groove. An inner sliding cover is installed inside the main body of the protective cover. A grinding wheel is arranged inside the inner sliding cover, and a clamping tooth is welded to the bottom of the inner sliding cover. An operating rod is arranged at the rear side of the main body of the protective cover, and a workbench is arranged below the main body of the protective cover. The utility model collects the flame generated during cutting through the inner sliding cover to prevent sparks from splashing during its operation. The dial block device is convenient for adjusting the inner sliding cover. The workbench and the inner sliding cover are connected by matching the clamping tooth and the clamping groove to form a controllable splashing route for the sparks generated by cutting. The cutting sparks are blocked and intercepted by multiple blocking devices. The U-shaped groove facilitates the overall replacement and maintenance of the blocking devices.

[0004] However, there is still a problem in the above-mentioned patent that the cutting protection effect on the cutting machine is relatively poor. In the above-mentioned patent, the cutting sparks are blocked and intercepted by multiple blocking devices, but in this method, it is not convenient to adjust the protection device according to the cutting depth of the cutting disc on the workpiece in the cutting device, thus affecting the cutting efficiency and protection effect of the cutting device. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a protection device for metal cutting, which has the advantages of good protection effect, etc., and solves the problem that the cutting protection effect on the cutting machine in the prior art is relatively poor.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A protective device for metal cutting, including a cutting machine main body, a protective mechanism for conveniently adjusting the protection height is arranged on the outer side of the cutting machine main body, and a smoke exhaust mechanism for collecting and purifying cutting fumes is arranged on the upper surface of the cutting machine main body;

[0007] The protective mechanism includes a protective half shell, two side frames, two support springs, two push blocks and two protective side plates. The protective half shell is fixed to the outer side of the cutting machine main body. The two side frames are respectively fixed to the left and right sides of the protective half shell. One ends of the two support springs are respectively fixed to the inner top walls of the two side frames, and the other ends of the two support springs are respectively fixedly connected to the upper surfaces of the two push blocks. The two protective side plates are respectively fixed to the lower surfaces of the two push blocks.

[0008] Further, the two push blocks are respectively slidably connected to the inner walls of the two side frames, and the length of the push block is equal to the distance between the inner walls of the front and rear sides of the side frame.

[0009] Further, adjustment openings are respectively formed in the lower surfaces of the two side frames, and the two protective side plates are respectively slidably connected to the inner walls of the two adjustment openings.

[0010] Further, the lengths of the two side frames are both greater than the length of the protective half shell, and the cross-sectional shape of the protective half shell is U-shaped.

[0011] Further, the smoke exhaust mechanism includes a fan, a collection pipe, a diversion cover, an exhaust pipe and a filter element. The fan is fixed to the upper surface of the cutting machine main body. One end of the collection pipe is communicated with the air inlet end of the fan, and the other end of the collection pipe penetrates and extends to the inner wall of the protective half shell and is communicated with the diversion cover. The exhaust pipe is communicated with the air outlet end of the fan. The filter element is arranged at the top end of the exhaust pipe to filter and discharge the collected flue gas.

[0012] Further, the filter element includes a filter cylinder, a first filter layer, a second filter layer, a catalytic converter and an exhaust pipe. The filter cylinder is communicated with the top end of the exhaust pipe. The first filter layer is fixed to the inner wall of the filter cylinder. The second filter layer is fixed to the inner wall of the filter cylinder and is located above the first filter layer. The catalytic converter is fixed to the inner wall of the filter cylinder and is located above the second filter layer. The exhaust pipe is communicated with the upper surface of the filter cylinder.

[0013] Further, a filter net is fixed to the inner wall of the diversion cover. The first filter layer is an activated carbon layer, and the second filter layer is a non-woven fabric layer.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] 1. The protective device for metal cutting provides protection against potentially splashing metal fragments and sparks generated during the cutting process by setting up a protective mechanism to ensure the safety of the operator. When the main body of the cutting machine is working, the bottom of the protective side plate contacts the metal. This way, the protective side plate can always be located outside the cutting machine to protect the operator from the possible splashes and sparks generated during metal cutting. The design of the spring and the push block enables the protective device to adapt to workpieces of different heights and sizes without affecting the moving cutting of the cutting machine.

[0016] 2. The protective device for metal cutting is equipped with an exhaust smoke mechanism. The fan guides the smoke and waste gas into the collection pipe through the exhaust smoke pipe. The flow guide cover helps to direct the waste gas flow towards the discharge pipe. The filter element filters and purifies the collected flue gas through the filter layer. The first filter layer is usually an activated carbon layer for adsorbing harmful substances such as volatile organic compounds. The second filter layer is usually a non-woven fabric layer for capturing finer particulate matter. The catalytic converter is used to convert harmful gases into relatively harmless substances to improve the cleanliness of the discharged gas. A filter net is fixed to the inner wall of the flow guide cover to further help capture particulate matter. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a schematic diagram of the protective mechanism of the present utility model;

[0019] Figure 3 It is the present utility model Figure 2 The enlarged schematic diagram of the structure at A in it;

[0020] Figure 4 It is a schematic diagram of the exhaust smoke mechanism of the present utility model;

[0021] Figure 5 It is a schematic diagram of the filter element of the present utility model.

[0022] In the figure: 1 main body of the cutting machine, 2 protective mechanism, 21 protective half shell, 22 side frame, 23 support spring, 24 push block, 25 protective side plate, 3 exhaust smoke mechanism, 31 fan, 32 collection pipe, 33 flow guide cover, 34 discharge pipe, 35 filter element, 351 filter cylinder, 352 first filter layer, 353 second filter layer, 354 catalytic converter, 355 exhaust smoke pipe, 36 filter net. Detailed Embodiment

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , a protective device for metal cutting in this embodiment includes a cutting machine main body 1. A protective mechanism 2 for conveniently adjusting the protection height is provided outside the cutting machine main body 1, and a smoke exhaust mechanism 3 for collecting and purifying cutting fumes is provided on the upper surface of the cutting machine main body 1.

[0025] Please refer to Figure 2-3 , for adjusting and protecting metal cutting, the protective mechanism 2 in this embodiment includes a protective half shell 21, two side frames 22, two support springs 23, two push blocks 24 and two protective side plates 25. The protective half shell 21 is fixed to the outside of the cutting machine main body 1, and the two side frames 22 are respectively fixed to the left and right sides of the protective half shell 21. When the cutting machine main body 1 works, the protective side plates 25 will be pushed outwards along the adjustment openings by the elastic force of the support springs 23. One ends of the two support springs 23 are respectively fixed to the inner top walls of the two side frames 22, and the other ends of the two support springs 23 are respectively fixedly connected to the upper surfaces of the two push blocks 24. The two protective side plates 25 are respectively fixed to the lower surfaces of the two push blocks 24. When cutting metal, the bottom of the protective side plate 25 contacts the metal, and as the cutting machine main body 1 moves down for cutting, the protective side plate 25 will squeeze the support spring 23 inwards to compress it and move the protective side plate 25 into the side frame 22.

[0026] In this embodiment, the two push blocks 24 are respectively slidably connected to the inner walls of the two side frames 22. The length of the push block 24 is equal to the distance between the inner walls of the front and rear sides of the side frame 22. Adjustment openings are provided on the lower surfaces of the two side frames 22. This way can make the protective side plates 25 always be located outside the cutting machine to protect the operator from the possible splashes and sparks generated during the metal cutting process. And the two protective side plates 25 are respectively slidably connected to the inner walls of the two adjustment openings. The lengths of the two side frames 22 are both greater than the length of the protective half shell 21. The cross-sectional shape of the protective half shell 21 is U-shaped. The design of the spring and the push block 24 can make the protective device adapt to workpieces of different heights and sizes without affecting the moving cutting of the cutting machine.

[0027] Please refer to Figure 4-5, for exhausting and purifying the fumes generated by cutting, the exhaust mechanism 3 in this embodiment includes a fan 31, a collection pipe 32, a flow guide cover 33, an exhaust pipe 34, and a filter element 35. The fan 31 is fixed to the upper surface of the cutting machine main body 1. One end of the collection pipe 32 is communicated with the air inlet end of the fan 31, and the other end of the collection pipe 32 penetrates and extends to the inner wall of the protective half shell 21 and is communicated with the flow guide cover 33. The exhaust pipe 34 is communicated with the air outlet end of the fan 31. The fan 31 guides the soot and waste gas into the collection pipe 32 through the exhaust pipe. The flow guide cover 33 conveys the soot to the collection pipe 32. The filter element 35 filters and purifies the collected fumes through the first filter layer 352 and the second filter layer 353. The filter element 35 is arranged at the top of the exhaust pipe 34 to filter and discharge the collected fumes.

[0028] The filter element 35 includes a filter cylinder 351, a first filter layer 352, a second filter layer 353, a catalytic converter 354, and an exhaust pipe 355. The filter cylinder 351 is communicated with the top of the exhaust pipe 34. The first filter layer 352 is fixed to the inner wall of the filter cylinder 351. The second filter layer 353 is fixed to the inner wall of the filter cylinder 351 and is located above the first filter layer 352. The catalytic converter 354 is fixed to the inner wall of the filter cylinder 351 and is located above the second filter layer 353. The exhaust pipe 355 is communicated with the upper surface of the filter cylinder 351. The catalytic converter 354 is used to convert harmful gases into relatively harmless substances to improve the cleanliness of the discharged gas. A filter net 36 is fixed to the inner wall of the flow guide cover 33 to further help capture particulate matter.

[0029] In this embodiment, a filter net 36 is fixed to the inner wall of the flow guide cover 33. The first filter layer 352 is an activated carbon layer, and the second filter layer 353 is a non-woven fabric layer. The first filter layer 352 is usually an activated carbon layer for adsorbing harmful substances such as volatile organic compounds. The second filter layer 353 is usually a non-woven fabric layer for capturing finer particulate matter.

[0030] The working principle of the above embodiment is as follows:

[0031] (1) When adjusting and protecting the metal cutting, when the cutting machine main body 1 works, the protective side plate 25 will extend outwards along the adjustment opening under the elastic force of the support spring 23. At the same time, when cutting the metal, the bottom of the protective side plate 25 contacts the metal. As the cutting machine main body 1 moves down for cutting, the protective side plate 25 will squeeze the support spring 23 inwards to compress it and move the protective side plate 25 into the side frame 22. This method can keep the protective side plate 25 outside the cutting machine all the time to protect the operator from the possible splashes and sparks generated during the metal cutting process. The design of the spring and the push block 24 can make the protective device adapt to workpieces of different heights and sizes without affecting the moving cutting of the cutting machine.

[0032] (2) When used for exhausting and purifying the fumes generated by cutting, the fan 31 guides the dust and waste gas to the collecting pipe 32 through the exhaust pipe. The flow guide cover 33 conveys the dust to the collecting pipe 32. The filter element 35 filters and purifies the collected fumes through the first filter layer 352 and the second filter layer 353. The first filter layer 352 is usually an activated carbon layer for adsorbing harmful substances such as volatile organic compounds. The second filter layer 353 is usually a non-woven fabric layer for capturing finer particulate matters. The catalytic converter 354 is used to convert harmful gases into relatively harmless substances, improving the cleanliness of the discharged gas. A filter net 36 is fixed to the inner wall of the flow guide cover 33 to further assist in capturing particulate matters.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0034] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. Therefore, the control method and circuit connection will not be explained in detail in this application document.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A protective device for metal cutting, comprising a cutting machine body (1), characterized in that: The outer side of the cutting machine body (1) is provided with a protection mechanism (2) for conveniently adjusting the protection height, and the upper surface of the cutting machine body (1) is provided with a smoke exhaust mechanism (3) for collecting and purifying cutting smoke; The protection mechanism (2) comprises a protection half shell (21), two side frames (22), two support springs (23), two push blocks (24) and two protection side plates (25); the protection half shell (21) is fixed to the outer side of the cutting machine body (1); the two side frames (22) are respectively fixed to the left and right sides of the protection half shell (21); one end of the two support springs (23) is respectively fixed to the inner top wall of the two side frames (22); the other ends of the two support springs (23) are respectively fixedly connected to the upper surfaces of the two push blocks (24); and the two protection side plates (25) are respectively fixed to the lower surfaces of the two push blocks (24).

2. A protective device for metal cutting according to claim 1, characterized in that: The two push blocks (24) are respectively slidably connected to the inner walls of the two side frames (22); the length of the push blocks (24) is equal to the distance between the inner walls at the front and rear sides of the side frames (22).

3. A protective device for metal cutting according to claim 1, characterized in that: The lower surfaces of the two side frames (22) are each provided with an adjustment opening, and the two protective side plates (25) are respectively slidably connected to the inner walls of the two adjustment openings.

4. A protective device for metal cutting according to claim 1, characterized in that: The lengths of the two side frames (22) are both greater than the length of the protective half shell (21), and the cross-sectional shape of the protective half shell (21) is U-shaped.

5. A protective device for metal cutting according to claim 1, characterized in that: The smoke exhaust mechanism (3) comprises a fan (31), a collecting pipe (32), a guide cover (33), an exhaust pipe (34) and a filter (35); the fan (31) is fixed to the upper surface of the cutting machine body (1); one end of the collecting pipe (32) is connected to the air inlet end of the fan (31); the other end of the collecting pipe (32) penetrates and extends to the inner wall of the protective half shell (21) and is connected to the guide cover (33); the exhaust pipe (34) is connected to the air outlet end of the fan (31); and the filter (35) is arranged at the top end of the exhaust pipe (34) to filter and exhaust the collected smoke.

6. A protective device for metal cutting according to claim 5, characterized in that: The filter element (35) comprises a filter cartridge (351), a first filter layer (352), a second filter layer (353), a catalytic converter (354) and a smoke exhaust pipe (355); the filter cartridge (351) is connected to the top end of the exhaust pipe (34); the first filter layer (352) is fixed to the inner wall of the filter cartridge (351); the second filter layer (353) is fixed to the inner wall of the filter cartridge (351) and is located above the first filter layer (352); the catalytic converter (354) is fixed to the inner wall of the filter cartridge (351) and is located above the second filter layer (353); and the smoke exhaust pipe (355) is connected to the upper surface of the filter cartridge (351).

7. A protective device for metal cutting according to claim 6, characterized in that: A filter screen (36) is fixed to the inner wall of the air guide cover (33); the first filter layer (352) is an activated carbon layer; and the second filter layer (353) is a non-woven fabric layer.

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