Semi-finished angle steel cutting device

Abstract

The invention relates to the technical field of laser beam cutting, and particularly discloses a semi-finished angle steel cutting device which is characterized in that a laser cutter is arranged beside a working frame and used for cutting angle steel, and a base is connected with the working frame; the supporting piece comprises a supporting part and sharp tooth parts, the supporting part is assembled in the base in an up-down sliding mode, a plurality of receding grooves are formed in the base, and the sharp tooth parts are arranged in the receding grooves in a penetrating mode respectively and connected with the supporting part; the two material scraping pieces are assembled in the base in a front-back sliding mode and provided with material scraping faces, and the material scraping faces of the two material scraping pieces are attached to the two tooth faces of the sharp tooth part respectively; a transmission mechanism is arranged between the scraping pieces and the supporting part so that when the supporting part moves downwards, the two scraping pieces can be pushed to slide oppositely, and the attaching state of the scraping faces and the tooth faces of the sharp tooth parts can be kept. According to the semi-finished angle steel cutting device, through dislocation of the scraping face and the tooth face, scraping of slag on the tooth face is achieved, and the quality and the using effect of the sharp tooth part are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of laser beam cutting, and in particular to a semi-finished angle steel cutting device. Background Art

[0002] Semi-finished angle steel usually refers to angle steel materials that have undergone preliminary processing but have not yet reached their final form. Laser cutting, as a high-precision and high-efficiency processing method, is used in the semi-finished processing of angle steel. Laser cutting uses a high-energy-density laser beam to irradiate the angle steel, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the cutting of the angle steel.

[0003] The Chinese patent document with the authorization announcement number CN117921212B discloses a laser cutting device, including a frame for placing the metal plate to be cut, a support hand fixedly installed in the frame, and a plurality of sharp teeth in contact with the metal plate are provided at the upper end of the support hand, which can reduce the contact area between the support hand and the metal plate. Scrapers are provided on both sides of the support hand. When a metal plate is placed on the upper end of the support hand, the two scrapers are attached to the two sides of the support hand to facilitate the cleaning of the residues adhering to the support hand. The scrapers are assembled on the frame by sliding up and down and connected to the frame through a second spring.

[0004] In the initial state, the scraper is located above the support hand. The operator can expose the sharp teeth on the support hand by pressing down the scraper, which is convenient for supporting the metal plate and is conducive to laser cutting of the metal plate. After the metal plate cutting is completed, the pressure on the scraper is released, and the scraper slides upward under the action of the second spring to reset. When resetting, the two scrapers scrape off the cutting residues on both sides of the support hand, thereby ensuring that the two sides of the support hand will not adhere to the cutting residues.

[0005] However, when laser cutting metal plates, slag will not only splash on both sides of the support hand, but may also splash between two adjacent tines, that is, on the tooth surface of the tines. Since these parts are on the inner side and have uneven shapes, the scraper cannot clean them. After a period of accumulation, the slag may affect the quality and use effect of the tines. Summary of the invention

[0006] The invention provides a semi-finished angle steel cutting device, aiming to solve the problem in the related art that slag adheres to the tooth surface of the sharp teeth, thus affecting the quality and use effect.

[0007] The semi-finished angle steel cutting device of the present invention comprises a working frame, a supporting unit and a laser cutter, wherein a plurality of the supporting units are arranged in the working frame at intervals on the left and right and are used to support the angle steel, the laser cutter is arranged on the side of the working frame and is used to cut the angle steel, the supporting unit comprises a base, a supporting member and a scraping member, the base is fixedly connected to the working frame; the supporting member comprises a supporting portion and a sharp tooth portion, the supporting portion is slidably assembled in the base up and down, a plurality of avoidance grooves spaced apart in the front and back are provided on the base, and a plurality of the sharp tooth portions are respectively penetrated in a plurality of The scraper is arranged in the avoidance groove and is connected to the supporting part. When the supporting part drives the sharp tooth part to move downward, the groove wall of the avoidance groove can scrape off the slag on the side surface of the sharp tooth part. There are two scraper members, which are slidably assembled in the base forward and backward. The scraper members are provided with scraping surfaces corresponding to the sharp tooth parts one by one, and the scraping surfaces of the two scraper members are respectively fitted with the two tooth surfaces of the corresponding sharp tooth parts. A transmission mechanism is provided between the scraper member and the supporting part, so that when the supporting part moves downward, the two scraper members are pushed to slide toward each other to keep the scraping surfaces fitting with the tooth surfaces of the sharp tooth part.

[0008] The effect is that the tooth surface of the sharp tooth part and the scraper surface move downward while keeping in contact, so that the tooth surface and the scraper surface are relatively displaced, so that the scraper surface can scrape off the slag on the tooth surface of the sharp tooth part, thereby avoiding the accumulation of slag on the tooth surface of the sharp tooth part, ensuring the quality and use effect of the sharp tooth part, and then ensuring the stability and reliability of the angle steel support of the sharp tooth part. The slag on the side of the sharp tooth part is scraped off by the groove wall of the avoidance groove when moving downward, thereby achieving comprehensive cleaning of the sharp tooth part and improving the cleaning effect.

[0009] Preferably, the transmission mechanism includes a limit buckle and a toggle piece, the limit buckle is located beside the scraper piece and is connected to the scraper piece through a connecting rod; the toggle piece is arranged obliquely and connected to the supporting part, and the top end of the toggle piece is above the limit buckle, and the toggle piece is used to squeeze the limit buckle when moving downward, so that the limit buckle drives the scraper piece to slide.

[0010] Preferably, a limiting flange is provided on the connecting rod, and the limiting flange is used to withstand the squeezing of the toggle member when the toggle member moves upward, thereby driving the scraper member to reset.

[0011] The effect is that when the support part drives the sharp tooth part to move downward, the cleaning of the sharp tooth part is completed synchronously. Then, when the support part moves upward, the toggle member can squeeze the limit flange, thereby causing the scraper member to slide in the opposite direction. On the one hand, the scraper member is reset, and on the other hand, the two scrapers are moved away from each other, so that the two scraper surfaces on both sides of the sharp tooth part gradually move away from each other. In this way, when the sharp tooth part moves upward with the support part, a gradually expanding channel is formed between the two scraper surfaces, which is just convenient for the sharp tooth part to pass through, and at the same time, the two scraper surfaces are in real-time contact with the tooth surfaces on both sides of the sharp tooth part.

[0012] Preferably, the top edge of the avoidance groove forms an inclined or arc-shaped material guiding surface, and the material guiding surface is used to guide the slag pushed by the sharp tooth portion out of the avoidance groove when the sharp tooth portion moves upward.

[0013] The effect is that the material guide surface can smoothly guide the slag out, thus avoiding the interference or jamming of the sharp teeth and ensuring the smooth resetting of the sharp teeth.

[0014] Preferably, the base includes a base body and a top cover, the top cover covers the top of the base body and is elastically connected to the base body, and the avoidance groove is opened on the top cover.

[0015] The effect is that when the slag on the side of the sharp teeth is scraped off by the groove wall of the avoidance groove, the bonding force between the slag and the sharp teeth will first force the top cover to move down a distance, thereby increasing the elastic force between the top cover and the base body. When the elastic force is greater than the bonding force of the slag, the top cover will scrape off the slag. At the moment of scraping off the slag, the top cover suddenly releases the force, thereby causing the top cover to vibrate, making it easier for the top cover to shake off the scraped slag to the outside. In this way, the amount of slag remaining on the base can be reduced, so that the amount of slag on the base is kept in a balanced state, which not only satisfies the surrounding protection of the sharp teeth by the slag, but also avoids the difficulty of cleaning due to too much slag residue.

[0016] Preferably, a groove is formed on the upper surface of the top cover, which is recessed from two sides to the middle avoidance groove, and the groove is used to accommodate cooling water.

[0017] The effect is that when the first batch of angle steels are cut, the slag will first fall into the cooling water and be cooled and shaped by the cooling water, thereby avoiding direct contact with the contact points of the sharp teeth and avoiding welding of the sharp teeth.

[0018] Preferably, the semi-finished angle steel cutting device also includes a machine tool, which has a processing area and a material changing area adjacent to each other on the left and right, and the working frame is divided into two layers, each layer of the working frame is slidably assembled on the machine tool left and right, and the machine tool is provided with a driving device for controlling the alternating sliding of the two layers of the working frames, so that when one layer of the working frame slides to the processing area, the other layer of the working frame slides to the material changing area.

[0019] Preferably, the machine tool is provided with a guide rail arranged along the left and right direction, and the guide rail includes a first horizontal section located in the processing area and a second horizontal section located in the material changing area, the first horizontal section and the second horizontal section are connected and the first horizontal section is higher than the second horizontal section; a matching piece is connected to the support part, and the matching piece is slidably fitted in the guide rail, and when the matching piece is transferred from the first horizontal section to the second horizontal section, the height of the matching piece decreases and drives the support part to move downward.

[0020] Preferably, the guide track further includes a transition section, wherein the transition section connects the first horizontal section and the second horizontal section, and an extension track of the transition section is an inclined straight line or a curve.

[0021] Preferably, the machine tool is provided with a central console, and the driving device and the laser cutter are electrically connected to the central console respectively.

[0022] By adopting the above technical solution, the beneficial effects of the present invention are as follows: The present invention allows the tooth surface of the sharp tooth part to be in contact with the scraping surface when the sharp tooth part moves downward, so that the scraping surface can scrape off the slag on the tooth surface of the sharp tooth part, thereby avoiding the accumulation of slag on the tooth surface of the sharp tooth part, ensuring the quality and use effect of the sharp tooth part, and then ensuring the stability and reliability of the angle steel support of the sharp tooth part. The slag on the side of the sharp tooth part is scraped off by the groove wall of the avoidance groove when the sharp tooth part moves downward, thereby achieving the cleaning of the tooth surface and side of the sharp tooth part, and improving the comprehensiveness of the cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the appearance of the semi-finished angle steel cutting device of the present invention.

[0024] Figure 2 It is a partial structural schematic diagram of the semi-finished angle steel cutting device of the present invention.

[0025] Figure 3 It is a three-dimensional schematic diagram of the support unit to the working frame part of the present invention.

[0026] Figure 4 It is a three-dimensional schematic diagram of the support unit of the present invention.

[0027] Figure 5 It is a three-dimensional cross-sectional view of the support unit of the present invention.

[0028] Figure 6 It is an exploded schematic diagram of the support member to the scraper member portion of the present invention.

[0029] Figure 7 It is an exploded schematic diagram of the base of the present invention.

[0030] Reference numerals: 100. Angle steel; 1. Machine tool; 11. Guide rail; 111. First horizontal section; 112. Second horizontal section; 113. Transition section; 12. Center console; 13. Folding plate; 131. Material gap; 2. Working frame; 21. Card slot; 3. Support unit; 31. Base; 311. Avoidance groove; 3111. Material guide surface; 312. Base body; 313. Top cover; 3131. Spring; 3132. Groove; 32. Support member; 321. Support part; 3211. Matching member; 322. Pointed tooth part; 3221. Tooth surface; 33. Scraping member; 331. Scraping block; 3311. Scraping surface; 4. Laser cutter; 51. Limit buckle; 52. Connecting rod; 53. Fork rod; 54. Limit flange. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] Combine the following Figures 1 to 7 The semi-finished angle steel cutting device of the present invention is described.

[0033] like Figure 1 As shown, the semi-finished angle steel 100 cutting device of the present invention includes a machine tool 1, a working frame 2, a support unit 3 and a laser cutter 4.

[0034] Continue to refer Figures 1 to 3 The machine tool 1 has a processing area and a material change area adjacent to each other on the left and right. The working frame 2 is divided into two layers, upper and lower. Each layer of the working frame 2 is slidably assembled on the machine tool 1 in the left and right directions. The machine tool 1 is provided with a driving device for controlling the alternating sliding of the two layers of the working frame 2, so that when one layer of the working frame 2 slides to the processing area, the other layer of the working frame 2 slides to the material change area. It should be noted that in the processing area, the angle steel 100 carried by the working frame 2 is used for cutting and processing; in the material change area, the angle steel 100 processed on the working frame 2 is replaced by the angle steel 100 to be processed, completing the process of unloading and loading, which is convenient for the processing of subsequent batches of angle steels 100. The alternating sliding of the two layers of the working frame 2 achieves the purpose of transposition, thus ensuring the continuity of the cutting operation, thereby improving the work efficiency when processing multiple batches of angle steels 100. It should be noted that the left and right ends of the working frame 2 are provided with a card slot 21, and the angle steel 100 can be inserted between the two card slots 21 to achieve the installation of the angle steel 100 on the working frame 2. The slots 21 may be arranged in a plurality of groups along the front-rear direction, so that more angle steels 100 can be inserted therein, thereby realizing batch processing of the angle steels 100 .

[0035] The laser cutter 4 is mounted on the machine tool 1. Under the control of the existing servo motor and the corresponding transmission system, it can perform three-axis motion in space, has great flexibility, and is convenient for laser cutting of the angle steel 100 in the processing area.

[0036] For ease of description and understanding, one layer of the working framework 2 is used for illustration.

[0037] Continue to refer Figure 2 and Figure 3 A plurality of support units 3 are arranged in the working frame 2 at equal intervals along the left-right direction, and the plurality of support units 3 are used to support the angle steel 100. The support unit 3 includes a base 31, a support member 32 and a scraper member 33.

[0038] The base 31 extends in the front-to-back direction, and both ends are fixedly connected to the working frame 2 .

[0039] Continue to refer Figures 3 to 6 The support member 32 includes a support portion 321 and a sharp tooth portion 322. The support portion 321 is slidably assembled in the base 31. The base 31 is provided with a plurality of avoidance grooves 311 that are evenly spaced along the front-rear direction. The plurality of sharp tooth portions 322 are respectively arranged in the plurality of avoidance grooves 311 and are fixedly connected to the support portion 321. The groove wall of the avoidance groove 311 contacts the side of the sharp tooth portion 322. When the support portion 321 drives the sharp tooth portion 322 to lift up, the sharp tooth portion 322 can support the angle steel 100. The arrangement of the plurality of sharp tooth portions 322 reduces the contact area with the angle steel 100, so that a margin space is formed below the angle steel 100, which facilitates the angle steel 100 to be cut through by the laser beam. When the support portion 321 drives the sharp tooth portion 322 to move downward, the groove wall of the avoidance groove 311 can scrape off the slag on the side of the sharp tooth portion 322, thereby cleaning the side of the sharp tooth portion 322.

[0040] Continue to refer Figures 4 to 6 There are two scraper members 33 disposed on the left and right sides of the support member 32, and the scraper members 33 are slidably assembled in the base 31 along the front-back direction. The scraper members 33 have scraper blocks 331 corresponding to the sharp tooth portions 322 one by one, and the scraper blocks 331 are provided with scraper surfaces 3311 matching the tooth surfaces 3221 of the sharp tooth portions 322. The scraper surface 3311 of one of the two scraper members 33 fits with one tooth surface 3221 of the corresponding sharp tooth portion 322, and the scraper surface 3311 of the other scraper members 33 fits with the other tooth surface 3221 of the corresponding sharp tooth portion 322. In other words, the scraper surfaces 3311 of the two scraper members 33 act on the two tooth surfaces 3221 of the sharp tooth portion 322, respectively.

[0041] Continue to refer Figures 4 to 6A transmission mechanism is provided between the scraper member 33 and the support portion 321, so that when the support portion 321 moves downward, the two scraper members 33 are pushed to slide toward each other, that is, the two scraper members 33 are close to each other, so that the scraper surface 3311 can always be kept in contact with the tooth surface 3221 of the sharp tooth portion 322, and at the same time, the tooth surface 3221 of the sharp tooth portion 322 moves downward relative to the scraper surface 3311, and a misalignment occurs between the two, so that the scraper surface 3311 can scrape off the slag on the tooth surface 3221 of the sharp tooth portion 322, thereby avoiding the accumulation of slag on the tooth surface 3221 of the sharp tooth portion 322, ensuring the quality and use effect of the sharp tooth portion 322, and then ensuring the stability and reliability of the sharp tooth portion 322 supporting the diagonal steel 100.

[0042] It should be noted that the working frame 2 is in the shape of a square frame, and its wall body is a hollow square tube structure. The transmission mechanism is arranged in the wall body of the working frame 2. The transmission mechanism includes a limit buckle 51 and a toggle member. The limit buckle 51 is located beside the scraper 33 and is connected to the scraper 33 through a connecting rod 52. The toggle member is arranged obliquely and fixedly connected to the support portion 321. The toggle member is a fork rod 53. The top end of the fork rod 53 is forked on the connecting rod 52 and is located directly above the limit buckle 51. When the support portion 321 moves downward, the fork rod 53 is driven to move downward. The fork rod 53 squeezes the limit buckle 51 and forces the limit buckle 51 to slide in the front-back direction. The limit buckle 51 drives the scraper 33 to slide through the connecting rod 52, thereby realizing the two scrapers 33 sliding toward each other, that is, approaching each other.

[0043] The connecting rod 52 is fixed with a limiting flange 54. When the support part 321 drives the sharp tooth part 322 to move downward, the side of the sharp tooth part 322 is cleaned by the groove wall of the avoidance groove 311, and the tooth surface 3221 is cleaned by the scraping surface 3311, thereby achieving the purpose of comprehensive cleaning. At this time, the support part 321 can be controlled to move upward to make the sharp tooth part 322 rise again, so as to facilitate the support of the next batch of angle steels 100. When the support portion 321 moves upward, the fork rod 53 will squeeze the limiting flange 54 upward, so that the limiting flange 54 drives the scraper 33 to slide in the opposite direction, which realizes the resetting of the scraper 33 on the one hand, and makes the two scrapers 33 move away from each other on the other hand, so that the two scraper blocks 331 on both sides of the sharp tooth portion 322 gradually move away from each other. In this way, when the sharp tooth portion 322 moves upward with the support portion 321, a gradually expanding channel is formed between the two scraper blocks 331, which is just convenient for the passage of the sharp tooth portion 322. At the same time, the scraping surfaces 3311 of the two scraper blocks 331 are in real-time fit with the tooth surfaces 3221 on both sides of the sharp tooth portion 322.

[0044] Continue to refer Figure 1 , Figure 3 , Figure 4 and Figure 6In order to realize the automatic up and down movement of the support part 321, the machine tool 1 is provided with a guide track 11 arranged in the left and right direction and spanning the processing area and the material changing area. The guide track 11 includes a first horizontal section 111, a second horizontal section 112 and a transition section 113. The first horizontal section 111 is located in the processing area, and the second horizontal section 112 is located in the material changing area. The first horizontal section 111 is higher than the second horizontal section 112, and the two are transitionally connected by the transition section 113. The extension track of the transition section 113 is an inclined straight line or curve. The support part 321 has a mounting block embedded in the wall of the working frame 2, and a matching piece 3211 that is slidably fitted in the guide track 11 is fixedly connected to the mounting block.

[0045] When the fitting 3211 is in the first horizontal section 111, the fitting 3211 is at a relatively high position. At this time, the fitting 3211 lifts up the sharp teeth 322 in the processing area, which is convenient for supporting the angle steel 100 and facilitating the cutting of the angle steel 100. When the fitting 3211 is in the second horizontal section 112, the fitting 3211 is at a relatively low position. At this time, the fitting 3211 causes the sharp teeth 322 in the material replacement area to fall down, which is convenient for cleaning the sharp teeth 322 and also convenient for replacing the angle steel 100. When the fitting 3211 is transferred from the first horizontal section 111 to the second horizontal section 112, that is, when it slides at the transition section 113, the height of the fitting 3211 is in a gradually decreasing state, and the fitting 3211 drives the support portion 321 to move downward, thereby scraping off the slag on the sharp teeth 322.

[0046] After the angle steel 100 is re-stocked, the working frame 2 is moved from the re-stocking area to the processing area again, and the fitting 3211 is moved from the second horizontal section 112 to the first horizontal section 111. At this time, the height of the fitting 3211 gradually increases, and the support portion 321 drives the sharp teeth portion 322 to be re-lifted. Since the slag formed by cutting during the processing of the previous batch of angle steels 100 may splash into the avoidance groove 311, the re-lifting of the sharp teeth portion 322 may be blocked by the slag in the avoidance groove 311, resulting in the inability to return to the original position.

[0047] To this end, continue to refer to Figure 4 and Figure 5 The top edge of the avoidance groove 311 forms an inclined or arc-shaped material guide surface 3111, which is used to guide the slag pushed by the sharp tooth portion 322 out of the avoidance groove 311 when the sharp tooth portion 322 moves upward, so as to prevent the slag from interfering with or getting stuck on the sharp tooth portion 322. When the sharp tooth portion 322 returns to its original position, the slag is distributed around the sharp tooth portion 322 to protect the sharp tooth portion 322, so as to reduce the slag formed by the second batch of angle steels 100 during cutting from being splashed on the sharp tooth portion 322 again, and to prevent new slag from splashing on the contact point between the sharp tooth portion 322 and the wall of the avoidance groove 311, so as to prevent the two from being welded by the slag.

[0048] Continue to refer Figure 4 and Figure 7 The base 31 includes a base body 312 and a top cover 313 . The top cover 313 is covered on the top of the base body 312 and connected to the base body 312 through a spring 3131 . The avoidance groove 311 is opened on the top cover 313 .

[0049] When the slag on the side of the sharp tooth portion 322 is scraped off by the groove wall of the avoidance groove 311, the bonding force between the slag and the sharp tooth portion 322 will first force the top cover 313 to move down a distance, so that the spring 3131 is compressed. When the elastic force of the spring 3131 is greater than the bonding force of the slag, the spring 3131 pushes the top cover 313 to scrape off the slag. At the moment of scraping off the slag, the spring 3131 releases the force, thereby causing the top cover 313 to vibrate, so that the top cover 313 can shake off the scraped slag to the outside. In this way, the residual amount of slag on the base 31 can be reduced, and the amount of slag on the base 31 is kept in a balanced state, which not only satisfies the surrounding protection of the sharp tooth portion 322 by the slag, but also avoids the difficulty of cleaning due to the large amount of slag residue.

[0050] The slag formed during the cutting of the first batch of angle steels 100 may also splash onto the contact point between the sharp tooth portion 322 and the wall of the avoidance groove 311 . The molten slag may weld the contact point, thereby affecting the rise and fall of the sharp tooth portion 322 .

[0051] To this end, continue to refer to Figure 3 and Figure 4 The upper surface of the top cover 313 is formed with grooves 3132 that are recessed from both sides to the middle avoidance groove 311, and the grooves 3132 are used to accommodate cooling water. In this way, when the first batch of angle steels 100 are cut, the slag will first fall into the cooling water and be cooled and shaped by the cooling water, thereby avoiding direct contact with the contact point of the sharp tooth part 322 and preventing the sharp tooth part 322 from being welded.

[0052] Continue to refer Figure 1 The machine tool 1 is provided with a central control panel 12, and the driving device and the laser cutter 4 are respectively electrically connected to the central control panel 12. The central control panel 12 is used to comprehensively control the operation of the driving device and the laser cutter 4 to realize numerical control operation of the two.

[0053] refer to Figures 1 to 7 For ease of understanding, taking a single-layer working frame 2 as an example, its movement process and the transmission process between various components are as follows: In the first step, the angle steel 100 is installed, the working frame 2 is placed in the material replacement area, the angle steel 100 to be processed is replaced on the working frame 2, and the slot 21 realizes the installation of the angle steel 100 to be processed.

[0054] The second step is sliding and changing positions. The driving device makes the working frame 2 slide from the material changing area to the processing area. At the same time, the matching piece 3211 is transferred from the second horizontal section 112 to the first horizontal section 111 through the transition section 113. The height of the matching piece 3211 is increased, so that the support part 321 and the sharp tooth part 322 move upward. The sharp tooth part 322 lifts and supports the angle steel 100, making the posture of the angle steel 100 more stable.

[0055] The third step is laser cutting. The laser cutter 4 performs batch cutting of the angle steel 100 according to the set program. A part of the slag formed by cutting falls directly to the outside through the gap between the adjacent support units 3, and the other part falls on the top cover 313, the sharp tooth part 322 and other parts. The slag falling on the sharp tooth part 322 forms residue and needs to be cleaned. The slag falling on the top cover 313 will be cooled down by the cooling water in the groove 3132, avoiding direct contact with the contact point between the sharp tooth part 322 and the groove wall of the avoidance groove 311, thereby avoiding the sharp tooth part 322 from being welded.

[0056] The fourth step is automatic cleaning. After the angle steel 100 is cut, the driving device makes the working frame 2 slide from the processing area to the material changing area, and the matching piece 3211 slides from the first horizontal section 111 to the second horizontal section 112. When passing through the transition section 113, the height of the matching piece 3211 gradually decreases, so that the support part 321 and the sharp tooth part 322 gradually move downward. The sharp tooth part 322 realizes the cleaning of the side slag by scraping the groove wall of the avoidance groove 311. The sharp tooth part 322 realizes the cleaning of the slag on the tooth surface 3221 by fitting and dislocating with the scraping surface 3311, so that the sharp tooth part 322 realizes its own comprehensive cleaning by moving downward. Part of the cleaned slag is shaken outward due to the vibration of the top cover 313, part of it remains on the top cover 313, and another part is retained in the avoidance groove 311 and carried by the scraping block 331.

[0057] The fifth step is to replace the angle steel 100. When the working frame 2 slides to the material replacement area, the cut angle steel 100 can be removed and the second batch of angle steels 100 to be processed can be put in.

[0058] The sixth step is slag protection. The working frame 2 slides from the material changing area to the processing area. When the matching piece 3211 passes through the transition section 113, its height begins to gradually increase, so that the support part 321 and the sharp tooth part 322 are lifted up again. Due to the pressure of the limiting flange 54, the scraping surface 3311 will keep a fitting posture with the tooth surface 3221 of the sharp tooth part 322 and gradually withdraw to both sides, so that the sharp tooth part 322 and the scraping piece 33 can be restored to their original positions. When the sharp tooth part 322 moves upward, it pushes the slag in the avoidance groove 311 to both sides, and the slag can be guided out of the avoidance groove 311 along the material guide surface 3111, thus avoiding the slag from being stuck in the sharp tooth part 322 and ensuring the smooth movement of the sharp tooth part 322. After the sharp tooth portion 322 is restored to its original position, a circle of slag is distributed around the sharp tooth portion 322, and the slag protects the sharp tooth portion 322, hiding the contact point between the sharp tooth portion 322 and the wall of the avoidance groove 311, thereby preventing new slag from splashing on the contact point during subsequent cutting, thereby preventing the sharp tooth portion 322 from being welded. In other words, the slag of the first batch of angle steels 100 serves as a protective layer for the sharp tooth portion 322, and its function is the same as the cooling water mentioned above. Since the cooling water may evaporate and volatilize and disappear, the slag inherits the function of the cooling water to achieve subsequent protection of the sharp tooth portion 322.

[0059] The subsequent process repeats the above steps and will not be described again here.

[0060] In this embodiment, the machine tool 1 is fixed with a plurality of folding plates 13 located below the working frame 2. The plurality of folding plates 13 are located in the processing area and are evenly spaced in the left and right directions. Feed gaps 131 are formed between adjacent folding plates 13. The slag falling to the outside falls onto the folding plates 13 and flows outward along the folding plates 13 through each feed gap 131. A collection box, a collection box, or a collection trolley can be placed below each feed gap 131 to realize the recovery of the slag.

[0061] In this embodiment, the driving device can be a chain mechanism, an electric guide rail, or a telescopic cylinder, an electric push rod, etc. Of course, when the above devices are used, it is best to select two to control the sliding of the two layers of working frames 2 respectively.

[0062] In other embodiments, the transmission mechanism may be a wedge block structure, which realizes the forward and backward sliding of the scraper 33 through the downward movement of the support portion 321; the transmission mechanism may also be an articulated connecting rod, which realizes the conversion between the vertical movement and the forward and backward movement through the planar movement of the connecting rod.

[0063] In other embodiments, the top cover 313 may be connected to the base body 312 via an elastic pad or an elastic bag, so that the elastic vibration effect of the top cover 313 may also be achieved.

[0064] In other embodiments, the groove 3132 may be replaced with a sink, a groove, or a pit having a certain concave area and capable of holding water.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A semi-finished angle steel cutting device, comprising a working frame, a supporting unit and a laser cutter, wherein a plurality of the supporting units are arranged in the working frame at intervals on the left and right and are used to support the angle steel, and the laser cutter is arranged on the side of the working frame and is used to cut the angle steel, characterized in that: The support unit comprises: A base, the base is fixedly connected to the working frame; A support member, the support member comprises a support portion and a sharp tooth portion, the support portion is slidably assembled in the base, a plurality of avoidance grooves spaced apart from each other are provided on the base, a plurality of sharp tooth portions are respectively inserted into the plurality of avoidance grooves and connected to the support portion, and when the support portion drives the sharp tooth portion to move downward, the groove wall of the avoidance groove can scrape off the slag on the side of the sharp tooth portion; A scraper member, wherein the scraper member has two and both are slidably assembled in the base forward and backward, the scraper member is provided with scraping surfaces corresponding to the sharp tooth portion one by one, and the scraping surfaces of the two scraper members are respectively fitted with the two tooth surfaces of the corresponding sharp tooth portion; a transmission mechanism is provided between the scraper member and the support portion, so that when the support portion moves downward, the two scraper members are pushed to slide toward each other to maintain the fitting state of the scraper surface and the tooth surface of the sharp tooth portion.

2. The semi-finished angle steel cutting device according to claim 1, characterized in that: The transmission mechanism includes a limit buckle and a toggle piece, the limit buckle is located beside the scraper piece and is connected to the scraper piece through a connecting rod; the toggle piece is arranged obliquely and is connected to the supporting part, and the top end of the toggle piece is located above the limit buckle, and the toggle piece is used to squeeze the limit buckle when moving downward so that the limit buckle drives the scraper piece to slide.

3. The semi-finished angle steel cutting device according to claim 2, characterized in that: The connecting rod is provided with a limiting flange, and the limiting flange is used to withstand the extrusion of the toggle member when the toggle member moves upward, thereby driving the scraper member to reset.

4. The semi-finished angle steel cutting device according to claim 1, characterized in that: The top edge of the avoidance groove forms an inclined or arc-shaped material guiding surface, and the material guiding surface is used to guide the slag pushed by the sharp tooth part out of the avoidance groove when the sharp tooth part moves upward.

5. The semi-finished angle steel cutting device according to claim 1 or 4, characterized in that: The base includes a base body and a top cover, wherein the top cover covers the top of the base body and is elastically connected to the base body, and the avoidance groove is arranged on the top cover.

6. The semi-finished angle steel cutting device according to claim 5, characterized in that: The upper surface of the top cover is formed with grooves which are recessed from both sides to the middle avoidance groove, and the grooves are used to accommodate cooling water.

7. The semi-finished angle steel cutting device according to claim 1, characterized in that: The semi-finished angle steel cutting device also includes a machine tool, which has a processing area and a material changing area adjacent to each other on the left and right. The working frame is divided into two layers, upper and lower layers. Each layer of the working frame is slidably assembled on the machine tool left and right. The machine tool is provided with a driving device for controlling the alternating sliding of the two layers of the working frames, so that when one layer of the working frame slides to the processing area, the other layer of the working frame slides to the material changing area.

8. The semi-finished angle steel cutting device according to claim 7, characterized in that: The machine tool is provided with a guide rail arranged along the left and right direction, and the guide rail includes a first horizontal section located in the processing area and a second horizontal section located in the material changing area, the first horizontal section and the second horizontal section are connected and the first horizontal section is higher than the second horizontal section; a matching piece is connected to the support part, and the matching piece is slidably fitted in the guide rail, and when the matching piece is transferred from the first horizontal section to the second horizontal section, the height of the matching piece decreases and drives the support part to move downward.

9. The semi-finished angle steel cutting device according to claim 8, characterized in that: The guide track further includes a transition section, which connects the first horizontal section and the second horizontal section, and an extension track of the transition section is an inclined straight line or a curve.

10. The semi-finished angle steel cutting device according to claim 7, characterized in that: The machine tool is provided with a central console, and the driving device and the laser cutter are electrically connected to the central console respectively.

Images