Laser cutting device for gate processing

Abstract

The present invention relates to the technical field of laser cutting devices, and specifically discloses a laser cutting processing device for gate processing, including a cutting table, a laser cutting device body, and an operating base plate; the operating base plate is fixedly mounted on the operating frame, and includes a cutting area and a shoveling mechanism storage area; the laser cutting device body and the operating base plate are mounted on a three-axis mechanical frame; a gas storage tank is mounted on the cutting table, and the gas storage tank is connected to a vapor blow-off component, and a vapor blow-off hole is provided on the vapor blow-off component; a shoveling mechanism is provided at the operating base plate. The present invention is provided with a shoveling mechanism, and the solidified plastic particle scraper in the shoveling mechanism can cut the solidified plastic particles after being heated, and clean the upper surface of the operating base plate, and the solidified plastic particle scraper is composed of a main scraper and an auxiliary scraper, and can gather the cut plastic particles to the middle area of ​​the operating base plate to prevent the plastic particles from falling to the outside of the operating base plate.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting devices, and in particular relates to a laser cutting processing device for gate processing. Background Art

[0002] Many plastic parts are needed in the gate. For example, the cover plate on the wiring trough of the internal circuits (electrical wires, signal lines, etc.) of the gate will use transparent plastic plates for easy viewing; and some of the cabinet doors on the circuit control cabinet will use transparent plastic plates (such as acrylic plates). Some of these plastic parts have irregular shapes (for example, the cover plate of the wiring trough needs to determine the angle according to the wiring trough, and the wiring trough needs to be adjusted according to site requirements), and most of them are processed by laser cutting.

[0003] In the process of laser cutting plastic parts, vaporization cutting is mostly used, that is, the laser cutting device can emit a high-power and dense laser beam. When the laser beam is aimed at the plastic part, part of the material in the cutting area of ​​the plastic part will vaporize into steam and disappear. The steam takes away the melted particles and washed debris, forming holes.

[0004] However, during vaporization cutting, about 40% of the material disappears as steam, while 60% of the material is blown away by the airflow in the form of molten droplets. These molten droplets will fall on the bottom plate of the plastic parts being cut. Under the influence of the outside temperature, these materials will solidify on the bottom plate, and after solidification, they will form tiny plastic particle spots. After long-term and repeated laser cutting, these spots will accumulate and form uneven marks on the bottom plate. The uneven bottom plate will cause the plastic parts placed on it to tilt and become uneven, which will cause the trajectory of the plastic parts to deviate from the preset trajectory during cutting. The subsequent installation of the cut gate parts is prone to misalignment, and in severe cases, the cut gate parts will be scrapped. Summary of the invention

[0005] The object of the present invention is to provide a laser cutting device for gate processing to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution, including a cutting table, a laser cutting device body, and an operating base plate;

[0007] The operating base plate is fixedly mounted on the operating frame, including the cutting area and the shoveling mechanism storage area;

[0008] The laser cutting device body and the operating base plate are mounted on a three-axis mechanical frame;

[0009] A gas storage tank is installed on the cutting table, the gas storage tank is connected to a vapor blow-off component, and a vapor blow-off hole is provided on the vapor blow-off component;

[0010] A shoveling mechanism is provided at the operating base plate, a plastic particle collecting box is installed on the operating base plate, and the plastic particle collecting box is installed on one side of the cutting area of ​​the operating base plate.

[0011] Preferably, the shoveling mechanism includes a solidified plastic particle scraper, which includes a main scraper and two auxiliary scrapers. The two auxiliary scrapers are respectively located on both sides of the main scraper, and the side of the auxiliary scraper close to the main scraper is farther away from the plastic particle collection box than the side far away from the main scraper.

[0012] Preferably, the main scraper and the auxiliary scraper have the same cross-section, and the cross-sections are both arc-shaped structures that are wide at the top and narrow at the bottom, and the center of the arc-shaped structure in the cross-section is located on the side of the main scraper close to the plastic particle collection box, and the lower end surfaces of the main scraper and the auxiliary scraper are against the upper end surface of the operating base plate, and the solidified plastic particle scraper is connected to a scraper heating mechanism, which can heat the solidified plastic particle scraper, and the scraper heating mechanism can heat the lubricating liquid in the frame.

[0013] Preferably, a frame of the same shape is installed on the side of the solidified plastic particle scraper close to the plastic particle collection box, and a groove of the same shape as the solidified plastic particle scraper is provided in the frame, and a gathering plate is provided in the groove, and the cross-section of the gathering plate is set to a right-angled trapezoidal shape. The gathering plate and the inner wall of the groove surround a lubricating liquid channel, and the lubricating liquid channel is wide at the top and narrow at the bottom, and the narrow side is close to the side of the solidified plastic particle scraper.

[0014] Preferably, a lubricating liquid discharge pipe is inserted at the wide side of the lubricating liquid channel, and the lubricating liquid discharge pipe is connected to a lubricating liquid storage pipe. The lubricating liquid storage pipe includes an oil storage chamber, and the oil storage chamber is connected to a gas storage tank through a gas feed port, and a control valve is installed at the gas feed port.

[0015] Preferably, a piston that can slide along the inner wall of the oil storage chamber is installed in the oil storage chamber, the piston is connected to a rebound spring, the other end of the rebound spring is connected to the inner wall of the oil storage chamber, and one end of the piston away from the rebound spring is fixedly connected to the buffer tube.

[0016] Preferably, the buffer tube is plugged into the buffer rod, a buffer spring connected to the buffer rod is installed in the buffer tube, and a sealing plate is fixedly connected to one end of the buffer rod away from the piston, and the thickness of the sealing plate is greater than the size of the lubricating liquid discharge hole.

[0017] Preferably, the solidified plastic particle scraper is mounted on a tool holder, the tool holder is fixedly mounted on the cutting table, a lubricating liquid scraper is mounted on the tool holder, the bottom of the lubricating liquid scraper is inclined toward the side away from the plastic particle collection box, and a sealing groove is provided on the side of the lubricating liquid scraper close to the operating base plate, a sealing gasket is installed in the sealing groove, and the sealing gasket is against the operating base plate.

[0018] Preferably, the shoveling mechanism includes a solidified plastic particle gathering pipe and an operating base plate heating mechanism, wherein the operating base plate heating mechanism is used to control the temperature of the operating base plate, and there is a gap between the solidified plastic particle gathering pipe and the operating base plate, and the solidified plastic particle gathering pipe includes a gas discharge hole and a gas exhaust channel.

[0019] Preferably, one end of the gas exhaust channel is connected to the gas discharge hole, and the other end is connected to the gas storage tank through a gas exhaust pipe. A start-stop valve is installed at the position where the gas exhaust pipe is connected to the gas storage tank. The gas exhaust channel is configured to be gradually narrowed from the side close to the gas exhaust pipe to the side of the gas discharge hole, and the inner wall of the gas discharge hole is inclined downward, and the gas discharge hole is arranged on the side of the solidified plastic particle gathering pipe close to the plastic particle collection box. The solidified plastic particle gathering pipe includes a main pipe and two auxiliary pipes, and the two auxiliary pipes are respectively on both sides of the main pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention is provided with a shoveling mechanism, and the solidified plastic particle scraper in the shoveling mechanism can cut the solidified plastic particles after being heated, and clean the upper surface of the operating base plate. The solidified plastic particle scraper is composed of a main scraper and an auxiliary scraper, which can gather the cut plastic particles to the middle area of ​​the operating base plate to prevent the plastic particles from falling to the outside of the operating base plate.

[0021] Second, the present invention provides a lubricating liquid capable of flowing along the outer surface of the solidified plastic particle scraper. The lubricating liquid flows along the solidified plastic particle scraper to the operating bottom plate, thereby reducing the wear between the operating bottom plate and the solidified plastic particle scraper.

[0022] 3. The shoveling mechanism of the present invention is composed of a solidified plastic particle gathering pipe and an operating base plate heating mechanism. The operating base plate heating mechanism can melt the plastic particles on the operating base plate. The solidified plastic particle gathering pipe is connected to a gas storage tank and can discharge gas toward the lower side and inclined toward one side of the middle area of ​​the operating base plate, which can blow the melted plastic particles to move and blow them into the plastic particle collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of embodiment 1 of the present invention.

[0024] Figure 2 This is one of the structural schematic diagrams of the internal shoveling mechanism in Example 1 of the present invention.

[0025] Figure 3 This is the second structural schematic diagram of the internal shoveling mechanism in the first embodiment of the present invention.

[0026] Figure 4 This is the third structural schematic diagram of the internal shoveling mechanism in Example 1 of the present invention.

[0027] Figure 5 Schematic diagram of the internal structure of the internal shoveling mechanism in Example 1 of the present invention.

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle.

[0029] Figure 7 It is a structural schematic diagram of the second embodiment of the present invention.

[0030] Figure 8 This is one of the structural schematic diagrams of the shoveling mechanism in the second embodiment of the present invention.

[0031] Fig. 9 Schematic diagram of the internal structure of the shoveling mechanism in the second embodiment of the present invention.

[0032] Fig.10 This is the second structural schematic diagram of the shoveling mechanism in the second embodiment of the present invention.

[0033] In the figure: 1, cutting table; 2, laser cutting device body; 3, operating base plate; 4, operating frame; 5, plastic parts clamping mechanism; 6, gas storage tank; 7, vapor blow-off part; 701, vapor blow-off hole;

[0034] Solidified plastic particle scraper; 8011, main scraper; 8012, auxiliary scraper; 802, frame; 803, gathering plate; 804, lubricating liquid discharge pipe; 805, lubricating liquid storage pipe; 8051, piston; 8052, gas feed port; 8053, rebound spring; 8054, buffer tube; 8055, sealing plate; 8056, lubricating liquid discharge hole; 806, scraper heating mechanism; 807, lubricating liquid scraper.

[0035] 901, solidified plastic particle gathering pipe; 9011, gas discharge hole; 9012, gas discharge channel; 9013, gas discharge pipe; 9014, main pipe; 9015, auxiliary pipe; 902, operating bottom plate heating mechanism;

[0036] 10. Plastic pellet collection box. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Reference Figure 1-Figure 6, a laser cutting processing device for gate processing, comprising a cutting table 1, a laser cutting device body 2, and an operating base plate 3;

[0039] Some parts inside the gate are made of plastic, such as the plastic pipes inside and some wiring troughs. In order to facilitate observation of the lines, the cover of the wiring trough will be made of transparent plastic material. The shape of the cover of the wiring trough needs to be designed according to the wiring requirements. The angle and size of the cover are difficult to cut manually, so laser cutting is used for processing;

[0040] like Figure 1 As shown, the operating base plate 3 is fixedly mounted on the operating frame 4, including a cutting area and a shoveling mechanism storage area; the operating base plate 3 is divided into two parts, namely a cutting area and a shoveling mechanism storage area, the former is the range of the laser cutting device body 2 for cutting plastic parts, and the latter is the area for storing the shoveling mechanism;

[0041] The laser cutting device body 2 and the operating base plate 3 are installed on a three-axis mechanical frame, which includes a left and right lateral movement mechanism, a front and rear longitudinal movement mechanism, and an up and down movement mechanism. Figure 1 , Figure 7 As shown, the laser cutting device body 2 is installed on the up-and-down moving mechanism, the up-and-down moving mechanism is used to drive the laser cutting device body 2 to move up and down, the up-and-down moving mechanism is installed on the left-and-right transverse moving mechanism, the left-and-right transverse moving mechanism can be used to drive the up-and-down moving mechanism and the laser cutting device body 2 to move horizontally left and right, and the operating base plate 3 is fixedly installed on the operating frame 4, the operating frame 4 is connected to the front-and-back longitudinal moving mechanism, the front-and-back longitudinal moving mechanism is used to drive the operating frame 4 and the plastic parts placed thereon to move in the front-and-back direction, the left-and-right transverse moving mechanism, the front-and-back longitudinal moving mechanism, and the up-and-down moving mechanism can realize three-axis movement under the control of the PLC program, so that the laser cutting device body 2 can cut the plastic parts on the operating base plate 3 along the designed track;

[0042] The plastic parts are placed on the operating base plate 3 and need to be clamped and fixed, so a plastic parts clamping mechanism 5 needs to be installed on the operating frame 4, and the plastic parts clamping mechanism 5 fixes the plastic parts to be cut; it should be noted that the length of the clamping plate in the plastic parts clamping mechanism 5 needs to be within the cutting area, so that the plastic parts clamping mechanism 5 can avoid interference and collision with the shoveling mechanism;

[0043] The laser cutting device body 2 can emit a high-power and dense laser beam. When the laser beam is aimed at the plastic part, part of the material in the cutting area of ​​the plastic part will vaporize into steam and disappear, and part of the material will be blown away by the auxiliary airflow as ejecta. During the vaporization cutting process, the steam carries away the molten particles and washed debris to form holes.

[0044] It should be noted that in order to produce wind toward the cutting track during the laser beam cutting of plastic parts, a gas storage tank 6 needs to be installed on the cutting table 1. The gas stored in the gas storage tank 6 can be carbon dioxide or an inert gas. The above gas is used to avoid oxidation at the cutting track of the plastic parts. Oxidation will cause the cutting track to be rough and discolored, but the price of carbon dioxide is lower than that of inert gas. Therefore, in this solution, carbon dioxide is stored in the gas storage tank 6. The gas storage tank 6 is connected to the vaporizer blow-off member 7. A valve is installed at the pipeline connecting the vaporizer blow-off member 7 and the gas storage tank 6. The vaporizer blow-off member 7 is provided with a vaporizer blow-off hole 701. It should be noted that the vaporizer blow-off member 7 is set in a ring shape, and its center coincides with the center line of the laser beam emitter in the laser cutting device body 2, and the vaporizer blow-off hole 701 is inclined toward the laser beam emitter located in the middle, forming wind toward the laser beam. Finally, the wind blown out is toward the cutting track to blow away the vaporizer at the cutting track.

[0045] The laser cutting device body 2 cuts the plastic part. During the vaporization process of the plastic part, about 40% of the material disappears as steam, while 60% of the material is blown away by the airflow in the form of molten droplets.

[0046] Furthermore, during the process of cutting plastic parts by the laser cutting device body 2, part of the material will be blown away in the form of molten droplets along with the airflow blown out by the vapor blowing part 7, and these materials will adhere to the operating base plate 3. Under the cooling of the external environment, these molten droplets will solidify on the operating base plate 3, and will form small plastic particle spots after solidification. These spots will accumulate after long-term and repeated laser cutting. Due to the different cutting trajectories, the thickness at different positions of the operating base plate 3 is different, which will cause the entire operating base plate 3 to be uneven. When cutting a new plastic part, its placement angle will be affected by the uneven outer surface of the operating base plate 3, and it will tilt. The trajectory actually cut by the laser cutting device body 2 will also be offset compared to the designed trajectory. Therefore, it is necessary to clear these plastic particle spots on the operating base plate 3. Therefore, the technical solution is provided with a shoveling mechanism at the operating base plate 3, and a plastic particle collection box 10 is installed on the operating base plate 3. The plastic particle collection box 10 is installed on the side of the operating base plate 3 close to the cutting area, and the shoveling mechanism A is Figures 1 to 6 As shown in FIG. 8 , the shoveling mechanism includes a solidified plastic particle scraper 801 .

[0047] It should be noted that the solidified plastic particle scraper 801 includes a main scraper 8011 and two auxiliary scrapers 8012. The two auxiliary scrapers 8012 are respectively located on both sides of the main scraper 8011. The main scraper 8011 and the auxiliary scraper 8012 are smoothly connected, that is, a corresponding arc structure is made at the position where the two are connected, so that the connection between the main scraper 8011 and the auxiliary scraper 8012 is smooth, and the side of the auxiliary scraper 8012 close to the main scraper 8011 is farther away from the plastic particle collection box 10 than the side away from the main scraper 8011. The main scraper 8011 and the auxiliary scraper 8012 have the same cross-section, and the cross-section is an arc structure that is wide at the top and narrow at the bottom, and the center of the arc structure in the cross-section is located on the side of the main scraper 8011 close to the plastic particle collection box 10, and the lower end surfaces of the main scraper 8011 and the auxiliary scraper 8012 It is against the upper end surface of the operating base plate 3. Furthermore, the solidified plastic particle scraper 801 is connected to the scraper heating mechanism 806. The scraper heating mechanism 806 can heat the solidified plastic particle scraper 801. The scraper heating mechanism 806 can heat the lubricating liquid in the frame 802. When the operating base plate 3 moves, the solidified plastic particle scraper 801 can remove the solidified plastic particles adhered to the upper surface of the operating base plate 3. After being heated, the solidified plastic particle scraper 801 can melt the part connected to the operating base plate 3 when it contacts the plastic particles. The plastic particles are blocked by the solidified plastic particle scraper 801 and are left on the side of the solidified plastic particle scraper 801 close to the plastic particle collection box 10. As the operating base plate 3 gradually moves, the plastic particles are finally pushed into the plastic particle collection box 10.

[0048] It should be noted that after the plastic particles come into contact with the solidifying plastic particle scraper 801, they are cut off from the operating base plate 3, and the two auxiliary scrapers 8012 on both sides are gathered toward the middle main scraper 801. As the operating base plate 3 moves, the plastic particles scraped off by the solidifying plastic particle scraper 801 and remaining on the operating base plate 3 will gather toward the middle area of ​​the operating base plate 3, thereby preventing the plastic particles from rolling onto the operating frames 4 on both sides of the operating base plate 3.

[0049] In a further embodiment, the solidified plastic particle scraper 801 is in direct contact with the operating base plate 3. During the contact process, the two are prone to mutual wear. In order to scrape off the plastic particles, the solidified plastic particle scraper 801 needs to be sharp, and the friction between it and the operating base plate 3 is likely to cause its bottom to become blunt, and the effect of scraping off the plastic particles will be reduced. Therefore, a frame 802 of the same shape as the solidified plastic particle scraper 801 is installed on the side close to the plastic particle collection box 10, and a groove of the same shape as the solidified plastic particle scraper 801 is provided in the frame 802, and a gathering plate 801 is provided in the groove. 03, the cross section of the gathering plate 803 is set to a right-angle trapezoidal shape, and the gathering plate 803 and the inner wall of the groove surround a lubricating liquid channel, which is wide at the top and narrow at the bottom, and the narrow side is close to the side of the solidified plastic particle scraper 801. It should be noted that the overall length of the arc structure of the cross section of the main scraper 8011 and the auxiliary scraper 8012 is greater than the distance from the solidified plastic particle scraper 801 to the narrow side of the lubricating liquid channel. The lubricating liquid falling from the narrow side can directly fall on the overall arc structure of the main scraper 8011 and the auxiliary scraper 8012, and slide down along the arc structure to lubricate the surface in contact with the operating base plate 3;

[0050] Furthermore, a lubricating liquid discharge pipe 804 is inserted at the wide side of the lubricating liquid channel, and the lubricating liquid discharge pipe 804 is connected to the lubricating liquid storage pipe 805. The lubricating liquid storage pipe 805 includes an oil storage chamber, and the oil storage chamber is connected to the gas storage tank 6 through the gas feed port 8052. The gas storage tank 6 stores compressed carbon dioxide, and a corresponding control valve needs to be installed at the gas feed port 8052. A piston 8051 that can slide along the inner wall of the oil storage chamber is installed in the oil storage chamber, and the piston 8051 is connected to a rebound spring 8053. The other end of the rebound spring 8053 is connected to the storage The inner wall of the oil chamber and the rebound spring 8053 are used to push the piston 8051 to move when there is no need to add lubricating oil, so as to block the lubricating liquid discharge hole 8056 connected to the lubricating liquid discharge pipe 804. The end of the piston 8051 away from the rebound spring 8053 is fixedly connected to the buffer tube 8054, and the buffer tube 8054 is plugged into the buffer rod. A buffer spring connected to the buffer rod is installed in the buffer tube 8054, and the end of the buffer rod away from the piston 8051 is fixedly connected to the sealing plate 8055, and the thickness of the sealing plate 8055 is greater than the size of the lubricating liquid discharge hole 8056.

[0051] It should be noted that the scraper heating mechanism 806 can not only heat the solidified plastic particle scraper 801, but also heat the lubricating liquid in the frame 802. When the solidified plastic particle scraper 801 cuts the plastic particles, it only needs to melt the part of the plastic particles in contact with it, so that the solidified plastic particle scraper 801 can cut the plastic particles more smoothly. Therefore, its temperature does not need to be too high, and it can be around 70 degrees to soften the corresponding plastic particles. The scraper heating mechanism 806 heats the lubricating liquid so that the lubricating liquid itself has a certain temperature, which can prevent the lubricating liquid from falling on the solidified plastic particle scraper 801, causing the temperature of the solidified plastic particle scraper 801 to drop rapidly, and at the same time prevent the lubricating liquid from vaporizing due to sudden heating, and prevent the raw materials in the lubricating liquid from vaporizing, and also prevent the noise from vaporizing;

[0052] In the process of clearing the plastic particles on the upper surface of the operating base plate 3, the valve at the gas feed port 8052 is opened, and the carbon dioxide in the gas storage tank 6 enters the oil storage chamber, and the gas squeezes the piston 8051, so that the piston 8051 and the blocking plate 8055 move, and the lubricating liquid discharge hole 8056 leaks out. At this time, the lubricating liquid can be squeezed into the frame 802 with the movement of the piston 8051. After the plastic particles on the operating base plate 3 are cleared, the valve at the gas feed port 8052 needs to be closed, and the piston 8051 rebounds with the help of the rebound spring 8053, and the blocking plate 8055 connected thereto blocks the lubricating liquid discharge hole 8056 (for this, a blocking ring is provided on the side of the lubricating liquid discharge hole 8056 in the oil storage chamber, and the blocking ring is on the side of the lubricating liquid discharge hole 8056 close to the piston 8051);

[0053] Furthermore, the solidified plastic particle scraper 801 is installed on the tool holder, and the tool holder is fixedly installed on the cutting table 1. A lubricating liquid scraper 807 is installed on the tool holder, and the bottom of the lubricating liquid scraper 807 is inclined toward the side away from the plastic particle collection box 10, and a sealing groove is provided on the side of the lubricating liquid scraper 807 close to the operating base plate 3, and a sealing gasket is installed in the sealing groove, and the sealing gasket is against the operating base plate 3. It should be noted that the overall shape of the lubricating liquid scraper 807 is the same as that of the solidified plastic particle scraper 801, that is, the lubricating liquid scraper 807 is also set to a shape that gathers toward the middle, which can scrape the lubricating liquid to the middle area of ​​the operating base plate 3 to prevent the lubricating liquid from escaping to the operating frame 4; the lubricating liquid scraper 807 can scrape the lubricating liquid on the operating base plate 3 to prevent the lubricating liquid from remaining on the upper surface of the operating base plate 3.

[0054] Example 2: Reference Figure 7-10 , a laser cutting processing device for gate processing, comprising a cutting table 1, a laser cutting device body 2, and an operating base plate 3;

[0055] The laser cutting device body 2 and the operating base plate 3 are installed on a three-axis mechanical frame, which includes a left-right lateral movement mechanism, a front-back longitudinal movement mechanism, and an up-and-down movement mechanism;

[0056] A gas storage tank 6 is installed on the cutting table 1, and the gas storage tank 6 is connected to a vapor blow-off member 7;

[0057] The operating base plate 3 is provided with a shoveling mechanism, and a plastic particle collecting box 10 is installed on the operating base plate 3. The plastic particle collecting box 10 is installed on the side of the operating base plate 3 close to the cutting area. The shoveling mechanism B is Figures 7 to 10 9 shown in the figure, the shoveling mechanism includes a solidified plastic particle gathering pipe 901 and an operating bottom plate heating mechanism 902, the operating bottom plate heating mechanism 902 is used to control the temperature of the operating bottom plate 3, there is a gap between the solidified plastic particle gathering pipe 901 and the operating bottom plate 3, and the solidified plastic particle gathering pipe 901 includes a gas discharge hole 9011 and a gas discharge channel 9012;

[0058] Further, one end of the gas discharge channel 9012 is connected to the gas discharge hole 9011, and the other end is connected to the gas storage tank 6 through the gas discharge pipe 9013. A start-stop valve is installed at the position where the gas discharge pipe 9013 is connected to the gas storage tank 6. The gas discharge channel 9012 is set to be gradually narrowed from the side close to the gas discharge pipe 9013 to the side of the gas discharge hole 9011, and the inner wall of the gas discharge hole 9011 is inclined downward, and the gas discharge hole 9011 is set on the side of the solidified plastic particle gathering pipe 901 close to the plastic particle collection box 10;

[0059] Specifically, the operating base plate heating mechanism 902 is used to heat the operating base plate 3, which requires the plastic particles to be completely melted. The temperature required to be reached needs to be greater than the melting point of the plastic particles. After heating, the solidified plastic particles adhered thereto will melt. After that, the operating base plate 3 moves toward the side close to the solidified plastic particle gathering tube 901. At this time, the gas in the gas storage tank 6 is discharged from the gas discharge hole 9011 through the gas discharge channel 9012. It should be noted that the gas discharge channel 9012 adopts a gradually narrowing design, which can increase the gas discharge. The flow rate of the gas discharged from the hole 9011 is changed, and the flow direction of the gas is changed to a downward inclined direction. At the same time, the gas discharge hole 9011 is set to be inclined downward, and the gas finally discharged will form an oblique downward airflow, which can blow the melted plastic particles on the operating base plate 3. The operating base plate 3 gradually moves, and finally the melted plastic particles can be blown into the plastic particle collection box 10. In this process, there is no friction between the solidified plastic particle gathering tube 901 and the operating base plate 3, and the two will not wear each other, and the service life is longer.

[0060] Furthermore, the solidified plastic particle gathering pipe 901 includes a main pipe 9014 and two auxiliary pipes 9015. The two auxiliary pipes 9015 are respectively on both sides of the main pipe 9014. The side of the auxiliary pipe 9015 away from the main pipe 9014 is closer to the plastic particle collection box 10 than the side close to the main pipe 9014. The entire solidified plastic particle gathering pipe 901 forms an airflow downward and toward the middle area of ​​the operating base plate 3, so that the molten plastic particles can gather toward the middle area of ​​the operating base plate 3, which can achieve a gathering effect, prevent the plastic particles from flowing to the two sides of the operating base plate 3, and allow the plastic particles to finally enter the plastic particle collection box 10. Figure 7-10 As shown, a thermal insulation board is arranged between the operating base plate 3 and the operating frame 4. The thermal insulation board is made of non-heat-conducting material. The thermal insulation board used in the scheme is an asbestos board, which prevents the heated operating base plate 3 from causing the temperature of the entire cutting table 1 to rise, while narrowing the heating range, reducing energy input, and controlling the range of temperature increase. The operating base plate 3 is located inside the entire cutting table 1, and is separated from the cutting table 1 by the asbestos board. In this way, the heated operating base plate 3 can be avoided as much as possible from contacting personnel, avoiding scalding personnel or other raw materials.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for gate processing, characterized in that: It comprises a cutting table (1), a laser cutting device body (2), and an operating base plate (3); An operating base plate (3) is fixedly mounted on an operating frame (4), and includes a cutting area and a shoveling mechanism storage area; The laser cutting device body (2) and the operating base plate (3) are mounted on a three-axis mechanical frame; A gas storage tank (6) is installed on the cutting table (1), the gas storage tank (6) is connected to a vapor blow-off component (7), and a vapor blow-off hole (701) is provided on the vapor blow-off component (7); A shoveling mechanism is provided at the operating base plate (3), a plastic particle collection box (10) is installed on the operating base plate (3), and the plastic particle collection box (10) is installed on one side of the cutting area of ​​the operating base plate (3); The shoveling mechanism comprises a solidified plastic particle scraper (801), the solidified plastic particle scraper (801) comprises a main scraper (8011) and two auxiliary scrapers (8012), the two auxiliary scrapers (8012) are respectively located on both sides of the main scraper (8011), and the side of the auxiliary scraper (8012) close to the main scraper (8011) is farther away from the plastic particle collection box (10) than the side away from the main scraper (8011); the shoveling mechanism also comprises a solidified plastic particle gathering pipe (901) and an operating bottom plate heating mechanism (902), the operating bottom plate heating mechanism (902) is used to control the temperature of the operating bottom plate (3), there is a gap between the solidified plastic particle gathering pipe (901) and the operating bottom plate (3), and the solidified plastic particle gathering pipe (901) comprises a gas discharge hole (9011) and a gas discharge channel (9012); The main scraper (8011) and the auxiliary scraper (8012) have the same cross-section, and both cross-sections are arc-shaped structures that are wide at the top and narrow at the bottom. The center of the arc-shaped structure in the cross-section is located on a side of the main scraper (8011) close to the plastic particle collection box (10). The lower end surfaces of the main scraper (8011) and the auxiliary scraper (8012) are against the upper end surface of the operating bottom plate (3). The solidified plastic particle scraper (801) is connected to a scraper heating mechanism (806). The scraper heating mechanism (806) is capable of heating the solidified plastic particle scraper (801). The scraper heating mechanism (806) is capable of heating the solidified plastic particle scraper (801). 6) The lubricating liquid in the frame (802) can be heated; a frame (802) of the same shape as the solidified plastic particle scraper (801) is installed on a side close to the plastic particle collection box (10); a groove of the same shape as the solidified plastic particle scraper (801) is provided in the frame (802); a gathering plate (803) is provided in the groove; the cross section of the gathering plate (803) is arranged in a right-angled trapezoidal shape; the gathering plate (803) and the inner wall of the groove surround a lubricating liquid channel; the lubricating liquid channel is wide at the top and narrow at the bottom, and the narrow side is close to the side of the solidified plastic particle scraper (801); A lubricating liquid discharge pipe (804) is inserted at the wide side of the lubricating liquid channel, and the lubricating liquid discharge pipe (804) is connected to a lubricating liquid storage pipe (805), and the lubricating liquid storage pipe (805) includes an oil storage chamber, and the oil storage chamber is connected to a gas storage tank (6) via a gas feed port (8052), and a control valve is installed at the gas feed port (8052); One end of the gas discharge channel (9012) is connected to the gas discharge hole (9011), and the other end is connected to the gas storage tank (6) via the gas discharge pipe (9013). A start-stop valve is installed at the position where the gas discharge pipe (9013) is connected to the gas storage tank (6). The gas discharge channel (9012) is arranged to be gradually narrowed from the side close to the gas discharge pipe (9013) to the side of the gas discharge hole (9011), and the inner wall of the channel of the gas discharge hole (9011) is arranged to be inclined downward, and the gas discharge hole (9011) is arranged on the side of the solidified plastic particle gathering pipe (901) close to the plastic particle collection box (10). The solidified plastic particle gathering pipe (901) comprises a main pipe (9014) and two auxiliary pipes (9015), and the two auxiliary pipes (9015) are respectively arranged on both sides of the main pipe (9014).

2. A laser cutting device for gate processing according to claim 1, characterized in that: A piston (8051) is installed in the oil storage chamber and can slide along the inner wall of the oil storage chamber. The piston (8051) is connected to a rebound spring (8053). The other end of the rebound spring (8053) is connected to the inner wall of the oil storage chamber. One end of the piston (8051) away from the rebound spring (8053) is fixedly connected to a buffer tube (8054).

3. A laser cutting device for gate processing according to claim 2, characterized in that: The buffer tube (8054) is plugged into the buffer rod. A buffer spring connected to the buffer rod is installed in the buffer tube (8054). A sealing plate (8055) is fixedly connected to one end of the buffer rod away from the piston (8051). The thickness of the sealing plate (8055) is greater than the size of the lubricating liquid discharge hole (8056).

4. The laser cutting device for gate processing according to claim 3, characterized in that: The solidified plastic particle scraper (801) is mounted on a tool holder, which is fixedly mounted on the cutting table (1). A lubricating liquid scraper (807) is mounted on the tool holder, the bottom of the lubricating liquid scraper (807) is inclined toward a side away from the plastic particle collection box (10), and a sealing groove is provided on a side of the lubricating liquid scraper (807) close to the operating bottom plate (3), a sealing gasket is mounted in the sealing groove, and the sealing gasket is against the operating bottom plate (3).

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