High-temperature-resistant PEEK sheet processing and cutting equipment

Abstract

The invention is suitable for the technical field of PEEK material processing, and provides high-temperature-resistant PEEK sheet processing and cutting equipment which comprises a bottom box. The platform plate is fixed on the bottom box; the rack and the collecting hopper are arranged on the platform plate; the mounting frame is adjustably arranged in the rack; the laser cutter and the fixing frame are fixed on the mounting frame; the purging mechanism is arranged on the fixed frame and is used for cleaning the molten beads; and the collecting box is arranged in the bottom box and is communicated with the collecting hopper. According to the high-temperature-resistant PEEK sheet processing and cutting equipment provided by the scheme, the problem of molten bead residues existing in existing PEEK sheet cutting is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of PEEK material processing, and particularly relates to a high-temperature-resistant PEEK sheet processing and cutting device. BACKGROUND

[0002] PEEK (polyether ether ketone) material has excellent high-temperature resistance, mechanical strength and chemical stability, and is widely used in high-end fields such as aerospace, electronics and electrical appliances, and medical machinery. In the processing and cutting process of high-temperature-resistant PEEK sheet, it is necessary to ensure that the cut is smooth and free of burrs, and at the same time, to avoid damage to the material performance caused by high-temperature cutting.

[0003] In the prior art, PEEK sheet cutting is mostly carried out by mechanical cutting or single laser cutting. Mechanical cutting is prone to problems such as burrs and material tearing, and the cutting tool wears out quickly, which is difficult to adapt to the high-strength characteristics of high-temperature-resistant PEEK material. Although single laser cutting can improve the smoothness of the cut, molten beads will be generated during the cutting process and adhere to the cut and the surface of the sheet, affecting the precision of the product and subsequent use. The molten beads are mainly formed by the molten material that is not effectively removed and re-solidified during the cutting process. In the prior art, one of the most common methods for removing molten beads is to use high-pressure gas (such as oxygen, nitrogen or air) to blow away the molten slag during cutting. If the pressure of the high-pressure gas is not high enough, it cannot effectively blow away the molten material; if the pressure of the high-pressure gas is too high, it may cause eddy currents, which is not conducive to slag removal.

[0004] For example, Chinese Utility Model Patent Publication No. CN222344499U discloses a cutting and dust removal device, which includes a rack, a cutting mechanism and a gas injection device. The cutting mechanism is installed on the rack and is used for laser cutting of the sheet. The gas injection device is installed on the rack and is used for spraying compressed gas inside to remove foreign matter on the sheet, which at least includes foreign matter generated during cutting of the sheet by the cutting mechanism. The dust removal cavity 54 can confine the splashed residue in the first through hole 4121 to the inside of the dust removal cavity 54, avoiding the splashed residue from escaping to the outside, so that the first dust removal member 51 can remove the residue. Furthermore, the air knife 53 blows the waste in the dust removal cavity 54 into the first dust removal member 51, which cooperates with the first dust removal member 51 to remove the residue, thereby effectively improving the waste removal efficiency and preventing the welding slag generated by laser cutting from escaping upward. However, this device can only remove the splashed residue and cannot effectively remove the molten beads on the surface of the cut of the sheet.

[0005] For example, Chinese invention patent authorization announcement No. CN120395166B discloses a kind of micro-nano particle impact strengthening auxiliary heavy piece laser cutting method and device, comprising the following steps: step one: the workpiece to be cut is placed in specified cutting station;Step two: simultaneously output micro-nano particle gas-solid mixed gas and laser beam, both act on workpiece and cut;Step three: micro-nano particle gas-solid mixed gas is sprayed to workpiece surface, high kinetic energy micro-nano particle impacts the heat affected zone of cutting area, so that slag is separated from workpiece surface;However, high-pressure gas drives micro-nano particle to generate vortex flow, which will adversely affect slag removal, in addition, micro-nano particle may adhere to workpiece surface under high temperature environment, instead, more slag is generated.

[0006] For example, Chinese invention patent authorization announcement No. CN112872584B discloses a kind of laser cutting thin steel plate surface cleaning method, for the materials melted and vaporized under the wind of cutting seam, the materials partially vaporized are cooled and condensed into small particle water droplets and accumulated in the edge of cutting seam. The blowing mechanism in the disclosure produces two annular blowing points around the cutting point, which can remove the dust on the material surface, but cannot remove the molten beads at the cutting point. Although the polishing mechanism is rotated by the action of the stepping motor, it produces an annular polishing area around the cutting point, and can effectively polish the cutting point when it moves. However, the polishing mechanism can only act on the molten beads at the bottom edge contact area of the cutting seam, and the effect is limited. SUMMARY

[0007] The technical problem to be solved by the present application is that the molten beads generated during laser cutting of existing high-temperature-resistant PEEK sheet cannot be effectively removed. Therefore, a high-temperature-resistant PEEK sheet processing and cutting device capable of secondary cleaning of molten beads is provided.

[0008] The application is implemented as follows: a high-temperature-resistant PEEK sheet processing and cutting device, comprising: a bottom box; a platform plate fixed on the top of the bottom box; a rack arranged on the platform plate, wherein a rectangular processing space is formed between the rack and the platform plate; a collecting hopper, wherein the mouth of the collecting hopper is located above the platform plate, the platform plate is provided with a window through which the middle part of the collecting hopper passes, and the bottom of the collecting hopper is in communication with the top of the bottom box; an installation frame arranged in the rack and located above the collecting hopper through an adjusting mechanism; a laser cutter fixed on the bottom of the installation frame and a fixed cavity fixed on the outer circumferential surface of the installation frame, wherein the fixed cavity comprises a base fixed on the outer circumferential surface of the installation frame and a side wall extending downward from the edge of the base, and the base and the side wall are in communication; an air pipe communicated with the upper surface of the base; two adapter cavities communicated with the lower surface of the side wall and symmetrically distributed about the laser cutter; a communication pipe, wherein one end of the communication pipe is in communication with the adapter cavity; two vertical cavities, wherein the two vertical cavities are symmetrically distributed about the laser cutter, the top of the vertical cavity is fixed to the lower surface of the base, and the side surface of the vertical cavity is in communication with the other end of the communication pipe; two first nozzles, wherein the two first nozzles are respectively communicated with one side of the two vertical cavities, and the extension lines of the two first nozzles intersect with the extension line of the laser cutter; a second nozzle, wherein the second nozzle is communicated with the side surface of one vertical cavity and located below the first nozzle, and the extension line of the second nozzle does not intersect with the extension line of the laser cutter; a sliding block, wherein the sliding block is slidingly connected in the vertical cavity; a push rod, wherein one end of the push rod is fixed to the bottom of the sliding block and the other end of the push rod extends out of the bottom of the vertical cavity; a pressing block, wherein the pressing block is fixed to the other end of the push rod; and a compression spring, wherein the compression spring is sleeved on the push rod and fixed between the bottom of the sliding block and the bottom of the vertical cavity.

[0009] Preferably, the adjusting mechanism comprises: a one-way screw rod rotatingly installed in the rack through a bearing; a first adjusting block threadedly sleeved on the one-way screw rod; a first guide rod horizontally fixed in the rack and penetrating through the first adjusting block; a mounting shell fixed on one side of the rack; a first motor fixed in the mounting shell, wherein the output shaft of the first motor is fixedly connected with the one-way screw rod through a shaft coupling.

[0010] Preferably, the adjusting mechanism further comprises: a first electric telescopic rod fixed on the bottom of the first adjusting block, wherein the push rod of the first electric telescopic rod is fixedly connected with the installation frame.

[0011] Preferably, the bottom of the pressing block is provided with a brush.

[0012] Preferably, a sheet positioning mechanism is arranged in the collecting hopper, which comprises: a mounting frame fixed to the inner wall of the collecting hopper in a ring shape; a two-way screw rod rotatably mounted in the mounting frame horizontally through a bearing, the middle part of the two-way screw rod being a light rod; two second adjusting blocks threadedly sleeved on two threaded segments of the two-way screw rod; a second guide rod fixed horizontally in the mounting frame and penetrating through the two second adjusting blocks; and two supporting plates fixed on the top of the two second adjusting blocks through bolts.

[0013] Preferably, a support block is arranged in the middle part of the two-way screw rod, and a ball is embedded in the top of the support block, the top end of the ball being abuttingly connected with the bottom of the PEEK sheet.

[0014] Preferably, a transmission mechanism is arranged in the bottom box, which comprises: a spline barrel rotatably mounted in the inner side wall of the bottom box and vertically distributed, the opening of the spline barrel facing upward; a second electric telescopic rod vertically fixed on the bearing seat located upward; an assembly plate fixed on the telescopic rod of the second electric telescopic rod; a spline rod rotatably mounted on the assembly plate through a bearing, the bottom end of the spline rod being inserted into the opening of the spline barrel; a first transmission rod rotatably mounted on the top of the bottom box, the top end of the first transmission rod extending into the collecting hopper, and the bottom end of the first transmission rod extending into the bottom box; a spline block fixed on the bottom end of the first transmission rod; a spline seat fixed on the top end of the spline rod and being in transmission connection with the spline block; and second bevel gears fixed on the top end of the first transmission rod and the end of the two-way screw rod and being in meshing connection with each other.

[0015] Preferably, a negative pressure mechanism is further arranged, which comprises: a collecting box arranged in the bottom box and being in communication with the bottom of the collecting hopper; a second motor fixed in the bottom box; a first rotating rod rotatably mounted in the collecting box through a bearing, one end of the first rotating rod extending out of one end of the collecting box and being in transmission connection with the second motor, and the other end of the first rotating rod extending out of the other end of the collecting box; a fan blade fixed on the first rotating rod and located in the collecting box; an air outlet arranged on the end of the collecting box close to the second motor; and first bevel gears fixed on the bottom end of the spline barrel and the other end of the first rotating rod and being in meshing connection with each other.

[0016] Preferably, a debris collecting mechanism is further arranged, which comprises: a filter box arranged in the upper part of the collecting box and being detachably pulled out; a filter bag arranged in the filter box, the surface of the filter bag being provided with mesh holes for intercepting the debris falling from the collecting hopper, and a filter plate being fixedly connected to the inner wall of the filter box below the filter bag for filtering the fine impurities in the gas; and a conduit fixedly connected to the top center of the collecting box and being in fixed communication with the bottom of the collecting hopper.

[0017] Preferably, one side of the collecting box is provided with an opening for the filter box to enter and exit, and a magnet block capable of being adsorbed to each other is fixed on the opening and the contact surface of the filter box respectively; and a handle is arranged on the outer side of the filter box.

[0018] Compared with the related art, the high-temperature-resistant PEEK sheet processing and cutting device provided by the application has the following beneficial effects: Through the cooperation of the fixing cavity 6, the air pipe 7, the adapter cavity 8, the communication pipe 15, the vertical cavity 16, the first nozzle 17, the second nozzle 18, the sliding block 19, the push rod 55, the pressing block 56 and the compression spring 57, double-angle air jet and secondary air jet on the welding seam are realized. Compared with the traditional one-time air jet, that is, the cutting and spraying mode, the action time of the air jet on the molten bead is prolonged, and the removal effect of the molten bead is effectively improved. At the same time, the downward movement of the sliding block causes the compression spring to be compressed, providing pressure to the pressing block to press the PEEK sheet tightly, and the pressing block removes the surface slag when passing through the welding area; the cooperation of the sheet positioning mechanism, the supporting block and the ball ensures the stability during the cutting process; the reliable power transmission is provided for each adjusting part by relying on the transmission mechanism, the cutting debris is effectively collected and filtered by combining the negative pressure mechanism and the debris collecting mechanism, the debris accumulation is reduced by the bucket wall cleaning mechanism, the structure stability of the equipment in the non-working state is maintained by the limiting action of the spline sleeve, and the adaptability, stability and practicality of the equipment are improved through the cooperation of each mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view structural schematic diagram of a high-temperature-resistant PEEK sheet processing and cutting device provided by the application; Figure 2 is a front view structural schematic diagram of a high-temperature-resistant PEEK sheet processing and cutting device provided by the application; Figure 3 is Figure 2 is an enlarged structural schematic diagram of part A shown in FIG. Figure 4 is Figure 2 is an enlarged structural schematic diagram of part B shown in FIG. Figure 5 is Figure 2 is an enlarged structural schematic diagram of part C shown in FIG. Figure 6 is Figure 2 is an enlarged structural schematic diagram of part D shown in FIG. Figure 7 is a structural schematic diagram of a supporting block and a ball in the application; Figure 8 is a structural schematic diagram of a supporting block and a ball in the application; Figure 9 is a structural schematic diagram of an assembly frame in the application; Figure 10 Figure 2 is a schematic view of the fixed cavity and two vertical cavities in the application; Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, and 58 are the same as the figures in the description. DETAILED DESCRIPTION

[0020] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0021] The application provides a high-temperature-resistant PEEK sheet processing and cutting device, which comprises a base box, a platform plate, a collecting hopper, a mounting frame, a laser cutter, a fixed cavity, an air pipe, an adapter cavity, a one-way screw rod, a first adjusting block, a first guide rod, a mounting shell, a first motor, a first electric telescopic rod, a communication pipe, a vertical cavity, a first nozzle, a second nozzle, a sliding block, a rack, a collecting box, a guide pipe, a filter box, a filter bag, a filter plate, a second motor, a first rotating rod, a fan blade, an air outlet, an assembly frame, a two-way screw rod, a second adjusting block, a second guide rod, a supporting plate, a supporting block, a ball bearing, a spline barrel, a first bevel gear, a second electric telescopic rod, a spline rod, a first transmission rod, a spline block, a spline seat, a second bevel gear, a second rotating rod, a connecting rod, a scraper, a second transmission rod, a third bevel gear, a fourth bevel gear, an assembly plate, a connecting frame, a spline sleeve, a magnet block, a push rod, a pressing block, a compression spring, and a limiting ring. Figures 1-10As shown, the high-temperature-resistant PEEK sheet processing and cutting device comprises a bottom box 1, a platform plate 2 fixed on the top of the bottom box 1, a rack 20 arranged on the platform plate 2, a rectangular processing space formed between the rack and the platform plate, a collecting hopper 3, the mouth of the collecting hopper being above the platform plate, the platform plate being provided with a window through which the middle part of the collecting hopper passes, the bottom of the collecting hopper being in communication with the top of the bottom box, a mounting bracket 4 arranged inside the rack 20 above the collecting hopper through an adjusting mechanism, a laser cutter 5 fixed on the bottom of the mounting bracket 4 and a fixed cavity 6 fixed on the outer periphery of the mounting bracket, the fixed cavity comprising a base fixed on the outer periphery of the mounting bracket and a side wall extending downward from the edge of the base, the base and the side wall being in communication, an air pipe 7 communicated on the upper surface of the base, two adapter cavities 8 communicated on the lower surface of the side wall and symmetrically distributed about the laser cutter, a communication pipe 15, one end of the communication pipe being in communication with the adapter cavity, two vertical cavities 16, the two vertical cavities being symmetrically distributed about the laser cutter, the top of the vertical cavity being fixed to the lower surface of the base, the side of the vertical cavity being in communication with the other end of the communication pipe, two first nozzles 17, the two first nozzles being respectively communicated on one side of the two vertical cavities and the extension lines of the two first nozzles intersecting the extension line of the laser cutter, a second nozzle 18, the second nozzle being communicated on the side of one vertical cavity and being below the first nozzle, the extension line of the second nozzle not intersecting the extension line of the laser cutter, a sliding block 19, the sliding block being slidingly connected in the vertical cavity, a push rod 55, one end of the push rod being fixed to the bottom of the sliding block and the other end of the push rod extending out of the bottom of the vertical cavity, a pressing block 56, the pressing block being fixed to the other end of the push rod, and a compression spring 57, the compression spring being sleeved on the push rod and being fixed between the bottom of the sliding block and the bottom of the vertical cavity.

[0022] In this embodiment, when in use, the PEEK sheet to be cut is placed on the supporting structure in the collecting hopper 3, the mounting bracket 4 is driven by the adjusting mechanism on the rack 20 to move transversely and vertically, so that the laser cutter 5 moves to the preset cutting position, and the preparation work before cutting is completed. The laser cutter 5 is started to cut the PEEK sheet, the laser cutter is a prior art, which can adopt a cutting mechanism such as that disclosed in Chinese Utility Model No. CN222344499U, which comprises a control mechanism, a laser cutting element and a cutting nozzle. Normally, the sliding block blocks the second nozzle, and the compression spring is not under pressure. The two vertical cavities are respectively located on the front and rear sides of the cutting area, and the vertical cavity with the second nozzle is located on the rear side of the cutting area.

[0023] During the cutting process, the high-pressure gas source is connected to the air pipe 7 through a hose, and the high-pressure gas source is distributed to two switching cavities 8 after entering the air pipe, and then enters two vertical cavities. The first nozzles 17 first spray gas on the laser cutting area from the front and rear directions, improving the removal efficiency of the molten bead. Since the first nozzles are not perpendicular to the PEEK sheet, the impact force on the PEEK sheet is small, and the PEEK sheet will not be shaken, especially for thin PEEK sheets. During the time when the high-pressure gas continues to enter, the air pressure in the vertical cavity gradually increases, and the compression slider 55 moves downward to leave the second nozzle 18 which is originally blocked by the slider. At the same time, the laser cutter is moved by the adjusting mechanism, and the second nozzle will supplement the gas to the cutting area. In this way, the second gas is sprayed on the weld, compared with the traditional one-time spraying, the action time of the gas on the molten bead is prolonged, and the removal effect of the molten bead is effectively improved. At the same time, the downward movement of the slider will compress the compression spring, providing pressure to the compression block to press the PEEK sheet tightly. When the compression block passes through the welding area, the surface slag is removed.

[0024] In a further preferred embodiment of the present application, the adjusting mechanism comprises: a one-way screw 9 horizontally rotatably installed in the rack 20 through a bearing; a first adjusting block 10 threaded on the one-way screw 9; a first guide rod 11 horizontally fixed in the rack 20 and penetrating through the first adjusting block 10; a mounting shell 12 fixed on one side of the rack 20; a first motor 13 fixed in the mounting shell 12, and the output shaft of the first motor 13 is fixedly connected with the one-way screw 9 through a shaft coupling.

[0025] In this embodiment, before use, according to the cutting requirements of the PEEK sheet, the first motor 13 in the mounting shell 12 is started, the output shaft of the first motor 13 drives the one-way screw 9 to rotate around the bearing through the shaft coupling, and the first adjusting block 10 threaded on the one-way screw 9 moves along the one-way screw 9; During the movement of the first adjusting block 10, the first guide rod 11 penetrating through it limits the movement direction, so that the first adjusting block 10 stably moves the mounting frame 4 connected at the bottom; The adjusting mechanism provides stable power for the position adjustment of the mounting frame 4 through the cooperation of motor driving and screw transmission, and the setting of the guide rod can reduce the deviation during the adjustment process, which helps to improve the adaptability of the cutting position of the equipment and enables the equipment to adapt to the cutting requirements of PEEK sheets of different sizes.

[0026] In a further preferred embodiment of the present application, the adjusting mechanism further comprises: a first electric telescopic rod 14 fixed at the bottom of the first adjusting block 10, and the push rod of the first electric telescopic rod 14 is fixedly connected with the mounting frame 4 for driving the mounting frame 4 to synchronously lift and lower the laser cutter 5.

[0027] In the embodiment, after the lateral position adjustment of the mounting frame 4 is completed, the first electric telescopic rod 14 at the bottom of the first adjusting block 10 is started according to the thickness and cutting requirement of the PEEK sheet, and the push rod of the first electric telescopic rod 14 is telescoped; The telescoping of the push rod drives the mounting frame 4 fixedly connected thereto to move in the vertical direction, so that the laser cutter 5 on the mounting frame 4 is synchronously lifted, until the working height adapted to the sheet is adjusted; In the further preferred embodiment of the application, the bottom of the pressing block is provided with a brush for cleaning the welding area, so as to avoid the molten beads blown away from being left on the surface area of the weld.

[0028] In the further preferred embodiment of the application, the inner wall of the vertical cavity is fixedly connected with a limiting ring 58 below the sliding block, which can prevent the sliding block from moving downward too much.

[0029] In the further preferred embodiment of the application, the collecting hopper 3 is provided with a sheet positioning mechanism, which comprises: an assembly frame 30 fixed to the inner wall of the collecting hopper 3 in a ring shape; a bidirectional screw 31 horizontally rotatably installed in the assembly frame 30, the middle part of the bidirectional screw being a light rod; two second adjusting blocks 32 threadedly sleeved on two threaded sections of the bidirectional screw 31; a second guide rod 33 horizontally fixed in the assembly frame 30 and penetrating through the two second adjusting blocks 32; and two supporting plates 34 fixed on the top of the two second adjusting blocks 32 by bolts, for supporting the PEEK sheet to be cut.

[0030] In the embodiment, during use, the bidirectional screw 31 on the assembly frame 30 is driven to rotate around the bearing according to the size of the PEEK sheet to be cut, and the two second adjusting blocks 32 symmetrically sleeved on the bidirectional screw 31 move relatively or oppositely; During the movement of the two second adjusting blocks 32, the second guide rod 33 penetrating through them restricts the movement direction, so that the two second adjusting blocks 32 drive the two supporting plates 34 on the top to move stably until the two supporting plates 34 are adjusted to a spacing adapted to the sheet; The positioning mechanism realizes the spacing adjustment of the supporting plates 34 through screw transmission, can adapt to the supporting requirements of PEEK sheets of different sizes, and the setting of the guide rod helps to improve the stability of the movement of the supporting plates 34. The supporting plates 34 form effective support and limitation for the sheet, reducing the displacement influence of the sheet during cutting.

[0031] In the further preferred embodiment of the application, the middle part of the bidirectional screw is provided with a supporting block 35, the top of the supporting block 35 is embedded with a ball 36, and the top end of the ball 36 can abut against the bottom of the PEEK sheet.

[0032] In the embodiment, the center of mass of the support block is penetrated by the middle part of the bidirectional screw, so that the posture of the support block is not affected when the bidirectional screw rotates. When the sheet is positioned, after the distance between the support plates 34 is adjusted, the PEEK sheet is placed on the support plates 34, so that the bottom of the sheet abuts against the embedded rolling balls 36 on the top of the support block 35; If the position of the sheet needs to be fine-adjusted, when the sheet is pushed, the rolling balls 36 roll with the movement of the sheet, and the sliding friction between the sheet and the support block 35 is converted into rolling friction; The cooperation of the support block 35 and the rolling balls 36 can form auxiliary support for the sheet, reduce the suspended area below the sheet, and the form of rolling friction can reduce the resistance when the sheet moves, facilitate the adjustment of the position of the sheet by the operator, and help to reduce the frictional influence on the surface of the sheet.

[0033] In a further preferred embodiment of the application, the bottom box 1 is provided with a transmission mechanism for driving the bidirectional screw 31 to rotate, and the transmission mechanism comprises: a spline barrel 37 vertically distributed and rotatably installed in the inner side wall of the bottom box 1 through two upper and lower spaced bearing seats, the opening of the spline barrel facing upward; a second electric telescopic rod 39 vertically fixed on the bearing seat located at the upper side; an assembly plate 51 fixed on the telescopic rod of the second electric telescopic rod 39; a spline rod 40 rotatably installed on the assembly plate 51 through a bearing, the bottom end of the spline rod 40 being inserted into the opening of the spline barrel; a first transmission rod 41 rotatably installed on the top of the bottom box 1, the top end of the first transmission rod 41 extending into the collecting hopper 3, and the bottom end of the first transmission rod 41 extending into the bottom box 1; a spline block 42 fixed on the bottom end of the first transmission rod 41; a spline seat 43 fixed on the top end of the spline rod 40 and capable of being sleeved and transmitted with the spline block 42; and second bevel gears 44 fixed on the top end of the first transmission rod 41 and the end of the bidirectional screw 31 respectively and meshing with each other.

[0034] In the embodiment, the spline barrel is a cylindrical part with internal splines, when the bidirectional screw 31 needs to be adjusted, the second electric telescopic rod 39 in the bottom box 1 is started, the push rod of the second electric telescopic rod 39 drives the assembly plate 51 to rise, the spline rod 40 on the assembly plate 51 slides along the spline barrel 37, and the spline seat 43 at the top end of the spline rod 40 is sleeved and matched with the spline block 42 at the bottom end of the first transmission rod 41. When the spline seat 43 and the spline block 42 are completely sleeved, power is transmitted to the spline rod 40 through the spline barrel 37, the spline rod 40 drives the first transmission rod 41 to rotate through the spline seat 43 and the spline block 42, the second bevel gears 44 at the top end of the first transmission rod 41 and the second bevel gears 44 at the end of the bidirectional screw 31 mesh with each other, and then the bidirectional screw 31 is driven to rotate. The transmission mechanism achieves on / off control of power transmission through the sliding engagement of the spline rod 40 and the spline cylinder 37, in conjunction with the second electric telescopic rod 39. The bevel gear meshing transmission method can stably transmit power, which helps to improve the smoothness of the rotation of the bidirectional screw 31 and provides reliable power support for the spacing adjustment of the pallet 34.

[0035] In a further preferred embodiment of the present invention, a negative pressure mechanism is also included, comprising: a collection box 21 disposed inside the bottom box 1 and communicating with the bottom of the collection hopper 3; a second motor 26 fixed inside the bottom box 1; a first rotating rod 27 rotatably mounted inside the collection box 21 via bearings, one end of the first rotating rod extending from one end of the collection box and connected to the second motor for transmission, and the other end of the first rotating rod extending from the other end of the collection box; a fan blade 28 fixed on the first rotating rod 27 and located inside the collection box; an air outlet 29 opened at one end of the collection box 21 near the second motor; and first bevel teeth 38 that mesh with each other fixed on the bottom end of the splined cylinder 37 and the other end of the first rotating rod 27, respectively, for transmitting power to drive the fan blade 28 to rotate.

[0036] In this embodiment, before the cutting operation begins, the second motor 26 inside the bottom box 1 is started. The second motor 26 outputs power to drive the associated transmission structure to operate, and then transmits power through the first bevel tooth 38 that meshes with the first rotating rod 27 at the bottom end of the spline cylinder 37. The power is transmitted through the first bevel tooth 38 to drive the first rotating rod 27 to rotate around the bearing. When the first rotating rod 27 rotates, it drives the fan blade 28 fixed on it to rotate synchronously. The rotation of the fan blade 28 causes airflow to form in the collection box 21. The gas in the collection box 21 is discharged through the air outlet 29 opened on one side. The negative pressure mechanism achieves stable power transmission through bevel gear meshing. The rotation of the fan blade 28 and the air outlet 29 form an airflow circulation, which can create a negative pressure environment in the collection box 21 and the connected collection hopper 3, providing assistance for the suction and transportation of cutting debris and helping to reduce the scattering of debris in the work area.

[0037] In a further preferred embodiment of the present invention, a debris collection mechanism is also included, comprising: a filter box 23 disposed in the upper part of the collection box 21 and removable; a filter bag 24 disposed in the filter box 23, the surface of the filter bag 24 having mesh openings for intercepting debris falling from the collection hopper, a filter plate 25 fixedly connected to the inner wall of the filter box below the filter bag for filtering fine impurities in the gas; and a conduit 22 fixedly connected to the center of the top of the collection box 21, the conduit 22 being fixedly connected to the bottom of the collection hopper 3.

[0038] In this embodiment, before the cutting operation, the filter bag 24 and the filter plate 25 are placed in the filter box 23 in sequence to ensure that the filter bag 24 is above the filter plate 25. Then the filter box 23 is pulled out and assembled into the collection box 21 so that the guide tube 22 is stably connected to the bottom of the collection hopper 3 and the feed inlet of the collection box 21. The debris generated during cutting, i.e. molten beads, enters the conduit 22 through the bottom of the collection hopper 3 under negative pressure. It is then transported to the filter box 23 in the collection box 21 through the conduit 22. The filter bag 24 intercepts and collects larger debris, while the fine impurities carried in the gas are filtered through the filter plate 25. The conduit 22 provides a stable channel for conveying debris. The graded filtration of the filter bag 24 and the filter plate 25 can handle impurities of different particle sizes. The design of the filter plate 25 and the filter box 23, which can be pulled out and disassembled, facilitates the subsequent cleaning of the collected debris and helps maintain the continuous operation capability of the equipment.

[0039] In a further preferred embodiment of the present invention, the collection box 21 has an opening on one side for the filter box to enter and exit, and magnets 54 that can attract each other are fixed on the opening and the contact surface of the filter box 23 respectively; a handle is provided on the outside of the filter box 23. In this embodiment, when assembling the filter box 23, the filter box 23 is pushed into the collection box 21, and the magnetic block 54 on the collection box 21 and the filter box 23 attract each other, so that the filter box 23 is initially fixed in the collection box 21, and at the same time, the sealing gasket on the contact surface of the filter box 23 and the collection box 21 forms a tight seal. During the cutting process, the adsorption effect of the magnet 54 can enhance the assembly stability of the filter box 23 and prevent the filter box 23 from shifting under negative pressure. When it is necessary to clean the debris inside the filter box 23, the filter box 23 can be easily pulled out by the handle on the outside of the filter box 23. The magnetic block 54 has a strong adsorption force to facilitate the disassembly and assembly of the filter box 23, and the sealing gasket helps to improve the effect of debris collection and gas filtration.

[0040] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, the collecting hopper 3 is provided with a hopper wall cleaning mechanism, the hopper wall cleaning mechanism including: a second rotating rod 45 rotatably mounted on the bottom of the collecting hopper 3 and located in the guide tube via a sealed bearing, the bottom end of the second rotating rod 45 extending into the bottom box 1; a connecting rod 46 with one end fixed to the top end of the second rotating rod 45; a scraper 47 fixed to the other end of the connecting rod 46 and in contact with the inner wall of the collecting hopper; the bottom box 1 is provided with a linkage mechanism for driving the second rotating rod 45 to rotate, the linkage mechanism including: a second transmission rod 48 rotatably mounted in the bottom box 1 via two bearing seats fixed to the top wall of the bottom box; two third bevel teeth 49 respectively fixed to one end of the second transmission rod 48 and spline rod 40 and meshing with each other; two fourth bevel teeth 50 respectively fixed to the other end of the second transmission rod 48 extending into the guide tube and meshing with the bottom end of the second rotating rod 45.

[0041] In this embodiment, during the cutting operation, the spline rod 40 inside the bottom box 1 rotates, and drives the second transmission rod 48 to rotate around the bearing seat through the meshing third bevel teeth 49. The second transmission rod 48 then transmits power to the second rotating rod 45 through the meshing fourth bevel teeth 50. The second rotating rod 45 rotates under the support of the sealed bearing, which drives the connecting rod 46 at the top to rotate synchronously. The connecting rod 46 drives the scraper 47 fixed on it to make a circular motion along the inner wall of the collection hopper 3. The scraper 47 slides against the inner wall of the collection hopper 3 to scrape off the attached cutting debris. The bucket wall cleaning mechanism works in conjunction with the existing power system of the equipment through a linkage mechanism, without the need for additional drive components. The rotation of the scraper 47 can reduce the adhesion and accumulation of debris on the inner wall of the collection bucket 3, which helps to keep the inside of the collection bucket 3 unobstructed and improve the debris collection efficiency. At the same time, the setting of the sealed bearing can reduce gas leakage and ensure the stability of the negative pressure environment.

[0042] In another embodiment of the present invention, a connecting frame 52 is fixed on the assembly plate 51, and a spline sleeve 53 is fixed on the connecting frame 52. When the spline seat 43 is separated from the spline block 42, the spline sleeve 53 descends with the assembly plate 51 and is sleeved on the spline block 42 to restrict the first transmission rod 41 and prevent it from rotating arbitrarily.

[0043] In this embodiment, when there is no need to adjust the bidirectional screw 31, the second electric telescopic rod 39 in the bottom box 1 is pushed back to its original position, which drives the assembly plate 51 to descend. The connecting frame 52 fixed on the assembly plate 51 also descends, and the connecting frame 52 drives the spline sleeve 53 to move down synchronously. As the assembly plate 51 continues to descend, the spline seat 43 and the spline block 42 gradually separate. At this time, the spline sleeve 53 is just fitted onto the spline block 42, forming a limiting constraint on the first transmission rod 41. This structure, through the cooperation of spline sleeve 53 and spline block 42, can prevent the first transmission rod 41 from rotating arbitrarily when not in operation, which helps to maintain the stability of the sheet positioning mechanism. At the same time, there is no need to add an additional independent limiting component. The linkage design with the original transmission structure improves the overall coordination of the equipment structure.

[0044] It is worth noting that in this invention, the laser cutter 5 can be equipped with a vision positioning module and a coordinate calibration unit. The vision positioning module includes a high-definition industrial camera and an image recognition chip, which can collect and capture surface images of the PEEK sheet in the collection bucket 3 in real time. The image recognition chip identifies and positions the edge of the sheet and the preset cutting mark to obtain the reference coordinates of the cutting trajectory. The coordinate calibration unit is connected to the equipment control system and, in conjunction with the displacement data of the adjustment mechanism on the frame 20, compensates and calibrates the coordinates obtained by vision positioning to ensure that the focused spot of the laser cutter 5 is accurately aligned with the preset cutting point.

[0045] Meanwhile, the output end of the laser cutter 5 can be equipped with a distance sensor, which can detect the vertical distance to the surface of the PEEK sheet in real time. Combined with the lifting and lowering adjustment of the first electric telescopic rod 14, the laser focusing spot can be stably controlled within the preset focal length range, further ensuring the positioning accuracy of the cutting point and avoiding cutting deviations caused by slight offsets in sheet placement or thickness differences. The circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0046] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not depart from the concept of the present invention. These technical solutions are also within the scope of protection of the present invention.

Claims

1. A high temperature resistant PEEK sheet processing and cutting device, characterized in that, The utility model relates to a laser cutting device for PEEK sheet material, comprising: a bottom box; a platform plate fixed on the top of the bottom box; a rack arranged on the platform plate, a rectangular machining space being formed between the rack and the platform plate; a collecting hopper, the mouth of the collecting hopper being located above the platform plate, the platform plate being provided with a window through which the middle part of the collecting hopper passes, the bottom of the collecting hopper being in communication with the top of the bottom box; a mounting frame arranged inside the rack and located above the collecting hopper through an adjusting mechanism; a laser cutter fixed on the bottom of the mounting frame and a fixing cavity fixed on the outer circumferential surface of the mounting frame, the fixing cavity comprising a base fixed on the outer circumferential surface of the mounting frame and a side wall extending downward from the edge of the base, the base and the side wall being in communication; an air pipe in communication with the upper surface of the base; two switching cavities in communication with the lower surface of the side wall and symmetrically distributed about the laser cutter; a communication pipe in communication with one end of the switching cavity; two vertical cavities symmetrically distributed about the laser cutter, the top of the vertical cavity being fixed on the lower surface of the base, the side of the vertical cavity being in communication with the other end of the communication pipe; two first nozzles in communication with one side of the two vertical cavities respectively, the extension line of the two first nozzles intersecting the extension line of the laser cutter; a second nozzle in communication with the side of one vertical cavity and located below the first nozzle, the extension line of the second nozzle not intersecting the extension line of the laser cutter; a sliding block slidingly connected in the vertical cavity; a push rod having one end fixed on the bottom of the sliding block and the other end extending out of the bottom of the vertical cavity; a pressing block fixed on the other end of the push rod; a compression spring sleeved on the push rod and fixed between the bottom of the sliding block and the bottom of the vertical cavity.

2. The high temperature resistant PEEK sheet material processing and cutting apparatus as claimed in claim 1, wherein, The adjusting mechanism comprises: a one-way screw rod horizontally rotatably mounted in the rack through a bearing; a first adjusting block threadedly sleeved on the one-way screw rod; a first guide rod horizontally fixed in the rack and penetrating through the first adjusting block; a mounting shell fixed on one side of the rack; a first motor fixed in the mounting shell, the output shaft of the first motor being fixedly connected with the one-way screw rod through a shaft coupling.

3. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 2, wherein, The adjusting mechanism further comprises: a first electric telescopic rod fixed on the bottom of the first adjusting block, the push rod of the first electric telescopic rod being fixedly connected with the mounting frame.

4. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 1, wherein, The bottom of the pressing block is provided with a brush.

5. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 1, wherein, The collecting hopper is provided with a sheet material positioning mechanism, the sheet material positioning mechanism comprising: an assembly frame fixed on the inner wall of the collecting hopper in a ring shape; a two-way screw rod horizontally rotatably mounted in the assembly frame through a bearing, the middle part of the two-way screw rod being a light rod; two second adjusting blocks threadedly sleeved on two threaded segments of the two-way screw rod; a second guide rod horizontally fixed in the assembly frame and penetrating through the two second adjusting blocks; and two supporting plates fixed on the top of the two second adjusting blocks through bolts.

6. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 5, wherein, The middle part of the two-way screw rod is provided with a supporting block, the top of the supporting block being embedded with a ball, the top end of the ball being abuttingly connectable with the bottom of the PEEK sheet material.

7. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 5, wherein, The bottom box is provided with a transmission mechanism, which comprises: a spline cylinder vertically arranged on the inner side wall of the bottom box and rotatably installed on two upper and lower bearing seats, the opening of the spline cylinder facing upward; a second electric telescopic rod fixed on the bearing seat above; an assembly plate fixed on the telescopic rod of the second electric telescopic rod; a spline rod rotatably installed on the assembly plate, the bottom end of the spline rod being inserted into the opening of the spline cylinder; a first transmission rod rotatably installed on the top of the bottom box, the top end of the first transmission rod extending into the collecting hopper, the bottom end of the first transmission rod extending into the bottom box; a spline block fixed on the bottom end of the first transmission rod; a spline seat fixed on the top end of the spline rod and being able to be driven by the spline block; and second bevel gears fixed on the top end of the first transmission rod and the end of the bidirectional screw rod and being engaged with each other.

8. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 7, wherein, The negative pressure mechanism comprises: a collecting box arranged in the bottom box and being in communication with the bottom of the collecting hopper; a second motor fixed in the bottom box; a first rotating rod rotatably installed in the collecting box, one end of the first rotating rod extending out of one end of the collecting box and being in driving connection with the second motor, the other end of the first rotating rod extending out of the other end of the collecting box; a fan blade fixed on the first rotating rod and being located in the collecting box; an air outlet arranged on the end of the collecting box close to the second motor; and first bevel gears fixed on the bottom end of the spline cylinder and the other end of the first rotating rod and being engaged with each other.

9. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 8, wherein, The debris collecting mechanism comprises: a filter box arranged in the upper part of the collecting box and being able to be pulled out and detached; a filter bag arranged in the filter box, the surface of the filter bag being provided with mesh holes for intercepting the debris falling from the collecting hopper, and a filter plate being fixed on the inner wall of the filter box below the filter bag for filtering the fine impurities in the gas; and a conduit fixedly communicated with the top center of the collecting box, the conduit being fixedly communicated with the bottom of the collecting hopper.

10. The high temperature resistant PEEK sheet material processing and cutting apparatus of claim 9, wherein, One side of the collecting box is provided with an opening for the filter box to enter and exit, and the opening and the contact surface of the filter box are respectively fixed with magnet blocks that can be mutually adsorbed; and the filter box is provided with a handle on the outside.

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