Equipment for cleaning tire mold by using laser

Abstract

The utility model belongs to the technical field of laser cleaning, and particularly relates to equipment for cleaning a tire mold by using laser, which comprises a cleaning equipment main body, an electric control cabinet is arranged behind the cleaning equipment main body, a cooling-water machine is arranged on one side of the electric control cabinet, and a dust removal and dust collection device is arranged on the other side of the electric control cabinet. According to the equipment for cleaning the tire mold through the laser, the mechanical arm is arranged on the machine frame, the tire mold side plate rotary table cleaning station and the mold pattern block rotary table cleaning station are arranged on the two sides of the machine frame respectively, and the mechanical arm and laser energy can be controlled through editable execution software installed in an industrial personal computer according to side plates and pattern blocks of different sizes; the movement track of the mechanical arm is controlled by generating the corresponding cleaning track to clean the surface of the side plate and the surface of the pattern block of the mold through appropriate laser energy, the mold can be cleaned in a full-automatic mode through the design, manual handheld operation is not needed, and the mold cleaning efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cleaning, in particular to a device for cleaning tire molds by using laser. Background Art

[0002] During the tire production process, a layer of rubber, release agent, isolation agent and other residues will remain on the tire vulcanization mold. Continuing to use the mold in this state will affect the surface quality of the tires produced subsequently. Therefore, the tire mold needs to be cleaned regularly.

[0003] At present, many companies use handheld laser cleaning machines to clean molds. Since handheld cleaning cannot control the focal position and stable moving speed of the laser beam well, it is very easy to form "cleaning spots" and the cleaning effect is not ideal. Manual handheld cleaning heads require long-term and delicate operation, which is labor-intensive and requires high operating skills of operators. In view of this, we propose a device that uses laser to clean tire molds. Summary of the invention

[0004] The main purpose of the utility model is to provide a device for cleaning tire molds using laser, which can solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model proposes a device for cleaning tire molds using laser, including a cleaning device body, an electrical control cabinet is arranged at the rear of the cleaning device body, a chiller is arranged on one side of the electrical control cabinet, and a dust collector is arranged on the other side of the electrical control cabinet. The dust collector is connected to the dust suction port in the middle of the turntable through a pipeline to collect dust generated during laser cleaning and keep the surrounding environment clean. The cleaning device body includes:

[0006] A frame, wherein the frame is rotatably connected to a mechanical arm;

[0007] A mechanical arm, one side of the mechanical arm is provided with a mold side plate turntable, the other side is provided with a mold pattern block turntable, the end of the mechanical arm is provided with a laser cleaning head, the laser cleaning head is provided with two sets of motors, and the light output angle of the laser cleaning head can be changed under the action of the two sets of motors, so that the light beam emitted by the laser cleaning head is irradiated vertically or at a desired angle to the mold side plate surface or the mold pattern block surface;

[0008] A mold side plate turntable, wherein the mold side plate turntable is rotatably connected to the frame;

[0009] A mold pattern block turntable, wherein the mold pattern block turntable is rotatably connected to the frame;

[0010] A box body, wherein the box body is arranged above the frame;

[0011] and a dust removal pipeline, wherein the dust removal pipeline respectively passes through the center of the tire mold side plate turntable and the center of the mold pattern block turntable, and merges into the suction port of the dust removal collector.

[0012] Preferably, the tire mold tread block turntable is provided with a plurality of areas for placing tread blocks, and the tread blocks are evenly distributed and placed along the periphery of the turntable.

[0013] Preferably, a clamp is provided at the center of the tire mold side plate turntable for fixing the tire mold.

[0014] Preferably, the mechanical arm is arranged at the rear middle position of the turntables on both sides of the frame, and the position of the mechanical arm base is relatively fixed to the rotation axis position of the tire mold side plate turntable and the tire mold tread block turntable.

[0015] Preferably, when the laser cleaning head cleans the tread blocks of the tire mold through the movement of the robotic arm, the laser cleaning head sequentially scans and cleans the mold surface from at least four irradiation directions.

[0016] Preferably, the laser beam of the laser cleaning head can be a focused single-point laser beam or a one-dimensional line laser beam or a two-dimensional surface laser beam generated by a galvanometer or a rotating mirror. The path of the laser beam scanning the surface of the tire mold tread block is to perform a "bow"-shaped reciprocating scanning along the arc direction of the tread block.

[0017] Preferably, when cleaning the surface of the tire mold side plate, the laser cleaning head determines the number of circular scans according to the ring width of the annular side plate and the one-dimensional line laser beam spot length or the two-dimensional surface laser beam spot length and scans successively from the outer circle to the inner circle.

[0018] Preferably, a zero position sensor is provided below the tire mold side plate turntable and the mold pattern block turntable to facilitate determining the position of the pattern block when laser cleaning the pattern block and determining the starting cleaning position when laser cleaning the side plate.

[0019] Preferably, one side of the box is provided with a motor drive, and the other side is provided with a roller follower, the lifting door on the box is provided with a position detection switch, and a monitoring camera is provided in the box.

[0020] The utility model provides a device for cleaning tire molds using laser. It has the following beneficial effects:

[0021] (1) The equipment for cleaning tire molds by laser has a frame with a robotic arm, and two sides are provided with a tire mold side panel turntable cleaning station and a mold tread block turntable cleaning station. The robotic arm and laser energy can be controlled by an editable execution software installed in an industrial computer according to the different sizes of side panels and tread blocks. The movement trajectory of the robotic arm is controlled by generating corresponding cleaning trajectories to clean the surface of the side panels and tread blocks of the mold with appropriate laser energy. This design can fully automatically clean the mold without manual operation, effectively improving the cleaning efficiency of the mold.

[0022] (2) The equipment for laser cleaning tire molds has a mold tread block turntable with multiple areas for placing tread blocks, and a set of positioning fixtures on the turntable as a placement reference. A fixed laser cleaning area is set in the operating space of the mechanical arm above the tread block turntable, and the motor under the turntable is controlled to drive the turntable to rotate, and the tread blocks on the turntable are sent to the designated laser cleaning area in turn for cleaning. This design can clean multiple groups of tread blocks at a time, effectively improving the cleaning efficiency of the equipment.

[0023] (3) In the equipment for cleaning tire molds using laser, two sets of motors are arranged on the laser cleaning head at the end of the robot arm. By driving the two sets of motors, the light output angle of the laser cleaning head can be changed, so that the light beam emitted by the laser cleaning head is irradiated vertically or at a desired angle to the surface of the mold side plate or the surface of the mold pattern block, thereby improving the cleaning effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the main part of the cleaning equipment of the utility model;

[0027] Figure 3 This is a schematic diagram of the overall appearance of the cleaning equipment of the utility model;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the pattern block turntable of the utility model mold;

[0029] Figure 5This is a partially enlarged three-dimensional structural schematic diagram of the laser cleaning head of the utility model;

[0030] Figure 6 This is a schematic diagram of the irradiation angle of the laser beam relative to the side plate surface when the utility model laser cleans the tire mold side plate CC;

[0031] Figure 7 This is a schematic diagram of the movement of the laser beam relative to the surface of the side plate when the laser is used to clean the side plate of the tire mold in the utility model;

[0032] Figure 8 It is a schematic diagram of the X and Y directions of the pattern block of the mold of the utility model;

[0033] Fig. 9 FIG. 1 is a schematic diagram of four irradiation angles of the laser beam relative to the surface of the tread block when laser cleaning the tread block of a tire mold;

[0034] Fig.10 Schematic diagram of four irradiation angles of the laser beam relative to the surface of the tread block when the laser cleans the tread block of the tire mold according to the utility model Figure 2 ;

[0035] Fig.11 Schematic diagram of four irradiation angles of the laser beam relative to the surface of the tread block when the laser cleans the tread block of the tire mold according to the utility model Figure 3 ;

[0036] Fig.12 This is a schematic diagram of the point, line and surface laser beams of the utility model;

[0037] Fig.13 This is a schematic diagram of the motion trajectory of the laser cleaning head when the laser is used to clean the tire mold tread blocks;

[0038] Fig.14 This is a schematic diagram of the movement trajectory of the laser cleaning head when laser cleaning the tire mold side plate;

[0039] Fig.15 This is a schematic diagram of the overlapping scanning track when the utility model laser cleans the tire mold tread block;

[0040] Fig.16 It is a schematic diagram of the overlapping mode of scanning tracks when laser cleaning the side plates of tire molds in the utility model.

[0041] Explanation of the accompanying figures: 1. Cleaning equipment body; 1.1. Frame; 1.2. Tire mould side plate turntable; 1.3. Robotic arm; 1.4. Mould pattern block turntable; 1.5. Laser cleaning head; 1.6. Box; 1.7. Dust removal pipe; 2. Chiller; 3. Electrical control cabinet; 4. Dust collector.

[0042] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] See also Figure 1-Figure 16 The utility model proposes a device for cleaning tire molds using laser, including a cleaning device body 1, an electrical control cabinet 3 is arranged at the rear of the cleaning device body 1, a chiller 2 is arranged on one side of the electrical control cabinet 3, and a dust collector 4 is arranged on the other side of the electrical control cabinet 3. The cleaning device body 1 includes a frame 1.1, the frame 1.1 is rotatably connected to a mechanical arm 1.3, the mechanical arm 1.3, a mold side plate turntable 1.2 is arranged on one side of the mechanical arm 1.3, and a mold pattern block turntable 1.4 is arranged on the other side, a laser cleaning head 1.5 is arranged at the end of the mechanical arm 1.3, and the mold side plate turntable 1.2 is arranged on the other side. , the mold side plate turntable 1.2 is rotatably connected to the frame 1.1, the mold pattern block turntable 1.4, the mold pattern block turntable 1.4 is rotatably connected to the frame 1.1, the box 1.6 is arranged above the frame 1.1, one side of the box 1.6 is provided with a motor drive, and the other side is provided with a roller follower, the lifting door on the box 1.6 is provided with a position detection switch, the box 1.6 is provided with a monitoring camera, and a dust removal duct 1.7, the dust removal duct 1.7 respectively passes through the center of the tire mold side plate turntable 1.2 and the center of the mold pattern block turntable 1.4, and converges at the suction port of the dust collector 4;

[0045] There are respectively stations for cleaning tire molds on both sides of the frame. The stations on both sides are the supporting work turntables for the side panels and pattern blocks. The robotic arm is arranged at the middle and rear position of the two worktables of the frame. The rotation axis positions of the supporting work turntables on both sides are relatively fixed with the position of the robotic arm base. The laser cleaning head 1.5 is arranged at the end of the robotic arm, and the surface of the side panels and pattern blocks of the mold are cleaned respectively through the movement trajectory of the robotic arm. The motion trajectory of the robotic arm is controlled by the editable execution software installed in the industrial computer. According to the side panels and pattern blocks of different sizes, the parameter values ​​can be input on the human-machine interface display of the industrial computer to generate the corresponding cleaning trajectory. The direction and angle of the laser beam output by the laser cleaning head on the mold surface are adjustable. There are multiple pattern block placement positions on the pattern block-bearing rotary workbench. Whenever a pattern block is cleaned, the rotary table will send the next pattern block to the cleaning area of ​​the laser cleaning head. When cleaning the side panel or pattern block on one side, the mold can be unloaded and reloaded on the other side and wait for cleaning. A movable box is provided on the frame, and the cleaning operation is completely carried out in a closed box, avoiding potential harm to personnel from laser radiation and robotic arms, and is also conducive to the collection and treatment of cleaning smoke.

[0046] In an embodiment of the utility model, in order to clean the tread blocks, specifically, the tire mold tread block turntable 1.4 is provided with a plurality of areas for placing the tread blocks, and the tread blocks are evenly distributed on the turntable along the periphery of the turntable. A clamp is provided at the center of the tire mold side panel turntable 1.2 for fixing the tire mold. The robot arm 1.3 is disposed at the rear position of the two bearing working turntables of the frame, and the position of the base of the robot arm 1.3 is relatively fixed to the rotation axis position of the tire mold side panel turntable 1.2 and the tire mold tread block turntable 1.4. When the laser cleaning head 1.5 cleans the tire mold tread blocks through the movement of the robot arm 1.3, the laser cleaning head sequentially scans and cleans the mold surface from at least four irradiation directions. The laser beam of the laser cleaning head 1.5 can be a focused single point laser beam or a one-dimensional line laser beam or a two-dimensional surface laser beam generated by a galvanometer and a rotating mirror. The laser beam scans the tire mold. The path of the pattern block surface is to scan back and forth in a "bow" shape along the arc direction of the pattern block. When the laser cleaning head 1.5 cleans the surface of the tire mold side plate, it determines the number of circular scans according to the ring width of the annular side plate and the one-dimensional line laser beam spot length or the two-dimensional surface laser beam spot length, and scans from the outer circle to the inner circle one by one. Zero point position sensors are provided under the tire mold side plate turntable 1.2 and the mold pattern block turntable 1.4, which are convenient for determining the position of the pattern block when the laser cleans the pattern block, and determining the starting cleaning position when the laser cleans the side plate;

[0047] like Figure 6 , Figure 7 , Fig.14 and Fig.16As shown, when cleaning the tire mold side panel, first place the mold side panel on the side panel cleaning turntable. There is a fast centering fixture chuck on the turntable. After the chuck tightens the mold side panel to be concentric with the turntable shaft, move the movable box to the mold side panel station and lower the lifting doors on both sides to form a closed cleaning area. Call the cleaning process program of this model and specification side panel, and the robot moves the laser cleaning head so that the laser beam can directly illuminate the outermost circle of the mold side panel surface and remain stationary for cleaning. After the side panel turntable starts to rotate, turn on the laser for cleaning. After the outermost circle of the side panel is cleaned, the robot moves the laser cleaning head to the inner center of the side panel for a certain step distance to clean the second circle on the outer side of the side panel. The robot moves the laser cleaning head to the inner center of the side panel one by one for cleaning until the side panel is cleaned. However, the scanning belt after each movement will have a 5mm overlap width with the previous scanning belt. During the cleaning process, in order to achieve better results, the cleaning head changes its angle under the action of the motors 1.5-1 and 1.5-2, so that the axis of the light beam emitted by the laser cleaning head is perpendicular to the surface of the mold side plate at the irradiation point.

[0048] like Figure 4 As shown, a plurality of pattern block placement stations are arranged on the pattern block cleaning turntable, which are marked with ①, ②, ③, ④, ⑤, ⑥, ... respectively. A certain area above the turntable is set as a fixed cleaning area. The turntable rotates to send the pattern block to be cleaned, such as the pattern block at position ①, into the laser cleaning area and keeps it still. The robotic arm moves the laser cleaning head to the pattern block cleaning area, and calls the cleaning process parameter program to control the cleaning head to clean the pattern block. After cleaning the pattern block at position ①, the turntable moves the pattern block at position ② to this cleaning area for cleaning, and rotates in this way. A servo motor and an induction sensor are arranged under the turntable to realize precise positioning of the mold position.

[0049] like Figure 8-Figure 11 As shown, when the laser cleaning head moves through the mechanical arm to clean the tire mold pattern block, the movement trajectory A3 of the laser cleaning head is parallel to the arc of the pattern block to perform multiple group coverage scans. This embodiment is preset to four scans. The first scan is to adjust the laser beam A2 through the 1.5-1 motor and the 1.5-2 motor to form an angle of +α° in the X direction and 0° in the Y direction with the normal line A1 of the mold contour surface at the laser beam irradiation point, and move back and forth along the mold contour surface at a uniform speed to clean the entire mold surface. The second scan is -α° in the X direction and 0° in the Y direction. The third scan is 0° in the X direction and +β° in the Y direction. The fourth scan is 0° in the X direction and -β° in the Y direction. The values ​​of α and β are between 0 and 30° depending on the rib height and spacing of the pattern block. The typical values ​​of α and β are 25°. During the scanning and cleaning process, the distance between the laser cleaning head and the pattern block contour surface remains constant.

[0050] like Fig.13and Fig.15 As shown, the number of reciprocating paths for each scanning of the pattern block is determined by the line spot length or surface spot length of the laser beam and the width of the pattern block. The overlap width between two adjacent scanning bands is 5 mm, and the scanning track A4 of the laser beam on the surface of the pattern block is in the shape of a "bow".

[0051] During use, when it is necessary to clean the tire mold side panel, first place the mold side panel on the side panel cleaning turntable 1.2. There is a fast centering clamp chuck on the turntable. After the chuck tightens the mold side panel to be concentric with the turntable shaft, the movable box is moved to the mold side panel station and the lifting doors on both sides are lowered to form a closed cleaning area. Then the cleaning process program of the side panel of this model specification is called. The robot arm 1.3 moves the laser cleaning head 1.5 so that the laser beam can directly irradiate the outermost circle of the mold side panel surface and remain stationary for cleaning. After the side panel cleaning turntable 1.2 starts to rotate, turn on the laser for cleaning. After the outermost circle of the side panel is cleaned, the robot arm moves the laser cleaning head to the inner center of the side panel by a certain step distance to clean the second circle on the outer side of the side panel. The robot arm 1.3 moves the laser cleaning head to the inner center of the side panel one by one for cleaning until the side panel is cleaned. When cleaning the pattern blocks, first fix the pattern blocks in turn on the positioning fixtures on the mold pattern block turntable 1.4, set a certain area above the mold pattern block turntable 1.4 as a fixed cleaning area, and when the mold pattern block turntable 1.4 sends the pattern blocks to be cleaned into the laser cleaning area and remains stationary, the robot arm 1.3 moves the laser cleaning head 1.5 to the pattern block cleaning area, and calls the cleaning process parameter program to control the cleaning head to clean the pattern blocks.

[0052] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for cleaning tire molds using laser, comprising a cleaning device body (1), characterized in that: An electrical control cabinet (3) is arranged at the rear of the cleaning device body (1), a water chiller (2) is arranged on one side of the electrical control cabinet (3), and a dust collector (4) is arranged on the other side of the electrical control cabinet (3). The cleaning device body (1) comprises: A frame (1.1), wherein the frame (1.1) is rotatably connected to a mechanical arm (1.3); A mechanical arm (1.3), wherein a mold side plate turntable (1.2) is provided on one side of the mechanical arm (1.3), a mold pattern block turntable (1.4) is provided on the other side, and a laser cleaning head (1.5) is provided at the end of the mechanical arm (1.3); A mold side plate turntable (1.2), wherein the mold side plate turntable (1.2) is rotatably connected to the frame (1.1); A mold pattern block turntable (1.4), wherein the mold pattern block turntable (1.4) is rotatably connected to the frame (1.1); A box (1.6), wherein the box (1.6) is arranged above the frame (1.1); and a dust removal duct (1.7), wherein the dust removal duct (1.7) respectively passes through the center of the tire mold side plate turntable (1.2) and the center of the mold pattern block turntable (1.4), and merges into the suction port of the dust removal collector (4).

2. The device for cleaning tire molds using laser according to claim 1, characterized in that: The tire mold tread block turntable (1.4) is provided with a plurality of areas for placing tread blocks, and the tread blocks are evenly distributed and placed on the turntable along the periphery of the turntable.

3. The device for cleaning tire molds using laser according to claim 1, characterized in that: A clamp is provided at the center of the tire mold side plate turntable (1.2) for fixing the tire mold side plate.

4. The device for cleaning tire molds using laser according to claim 1, characterized in that: The mechanical arm (1.3) is arranged at the rear middle position of the turntables on both sides of the frame, and the position of the base of the mechanical arm (1.3) is relatively fixed to the rotation axis position of the tire mold side plate turntable (1.2) and the tire mold pattern block turntable (1.4).

5. The device for cleaning tire molds using laser according to claim 1, characterized in that: When the laser cleaning head (1.5) cleans the tire mold pattern blocks through the movement of the mechanical arm (1.3), the laser cleaning head sequentially scans and cleans the mold surface from at least four irradiation directions.

6. The device for cleaning tire molds using laser according to claim 5, characterized in that: The laser beam of the laser cleaning head (1.5) can be a focused single point laser beam or a one-dimensional line laser beam or a two-dimensional surface laser beam generated by a galvanometer or a rotating mirror. The path of the laser beam scanning the surface of the tire mold tread block is to perform a "bow"-shaped reciprocating scanning along the arc direction of the tread block.

7. The device for cleaning tire molds using laser according to claim 1, characterized in that: When cleaning the surface of the tire mold side plate, the laser cleaning head (1.5) determines the number of circumferential scans according to the ring width of the annular side plate and the length of the one-dimensional line laser beam spot or the two-dimensional surface laser beam spot, and scans successively from the outer circle to the inner circle.

8. The device for cleaning tire molds using laser according to claim 7, characterized in that: Zero point position sensors are provided below the tire mold side plate turntable (1.2) and the mold pattern block turntable (1.4) to facilitate determining the position of the pattern block when laser cleaning the pattern block and determining the starting cleaning position when laser cleaning the side plate.

9. The device for cleaning tire molds using laser according to claim 1, characterized in that: One side of the box (1.6) is provided with a motor drive, and the other side is provided with a roller follower. The lifting door on the box (1.6) is provided with a position detection switch, and a monitoring camera is provided inside the box (1.6).

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