Special-shaped gypsum line modeling scraper manufacturing device and manufacturing method thereof

Abstract

The invention provides a special-shaped gypsum line modeling scraper manufacturing device and a manufacturing method thereof, and relates to the technical field of building decoration construction tools, the special-shaped gypsum line modeling scraper manufacturing device comprises a support, a pushing mechanism is arranged on the support, the pushing mechanism is in driving connection with a multi-point forming assembly, and a scraper body is movably arranged below the multi-point forming assembly; a laser cutting machine is arranged above the multi-point forming assembly and connected with a transverse moving mechanism, the transverse moving mechanism is connected with a longitudinal moving mechanism, and an industrial camera is fixedly arranged below the transverse moving mechanism. According to the special-shaped gypsum line modeling scraper manufacturing device and method, existing gypsum lines can be used for manufacturing special-shaped gypsum line modeling scrapers, constructors can form various special-shaped gypsum line scrapers with complex section shapes on site according to design requirements, and the special-shaped gypsum line modeling scraper manufacturing device and method have the advantages of being rapid, accurate and repeatable.

Description

Technical Field

[0001] This invention relates to the field of building decoration construction tools, specifically to a handheld scraper machine for on-site production of plaster decorative lines. Background Technology

[0002] Plaster moldings are a widely used decorative material in interior design, used for molding lines on ceilings, wall corners, and other areas. For irregularly shaped plaster moldings with complex curved surfaces and embossed patterns, a molding scraper that perfectly matches the outline is needed when caulking, repairing, or renovating old houses after installation to ensure that the pattern is consistent and the shape is accurate after repair.

[0003] Currently, the preparation of squeegees for irregularly shaped plaster moldings relies entirely on the manual experience of senior technicians. The conventional method is as follows: a worker takes a sample of plaster molding, applies plaster or putty to its surface to create a negative mold, and then manually cuts and sands a PVC or wooden board based on this mold. Through repeated comparisons and trial scraping, the squeegee's outline is corrected; that is, the existing plaster molding itself is used as a mold to create a squeegee that perfectly matches its outline. However, this method has significant drawbacks:

[0004] (1) It is highly dependent on personal skills, has extremely low production efficiency, cannot be standardized for mass production, and its accuracy is difficult to guarantee, especially for complex patterns, which are prone to cumulative errors;

[0005] (2) The preparation process will also continuously generate a large amount of dust, which is harmful to the health of the operator. Summary of the Invention

[0006] The purpose of this invention is to provide a device and method for preparing irregularly shaped plaster line squeegees, which solves the technical problem of how to prepare irregularly shaped plaster line squeegees using existing plaster line samples. It enables construction workers to form plaster line squeegees with various irregular and complex cross-sectional shapes on site according to design requirements, and has the advantages of being fast, accurate and repeatable.

[0007] A scraper preparation device for irregularly shaped plaster lines includes a support frame, a pushing mechanism on the support frame, a multi-point forming component driving connection between the pushing mechanism and the multi-point forming component, a scraper body movably disposed below the multi-point forming component, a laser cutting machine disposed above the multi-point forming component, the laser cutting machine being connected to a transverse moving mechanism, the transverse moving mechanism being connected to a longitudinal moving mechanism, and an industrial camera being fixedly disposed below the transverse moving mechanism.

[0008] The multi-point molding assembly includes a horizontally arranged piston cylinder, a piston rod slidably disposed at one end in the piston cylinder, a movable head fixed at the other end of the piston rod, a fixed cylinder communicating with one end of the piston cylinder, an inflation tube communicating with one end of the fixed cylinder, and an inflation pump connected to the other end of the inflation tube. The piston cylinder has multiple piston cylinders arranged side by side and parallel to each other. The fixed cylinder and the inflation pump are fixedly connected to the upper positioning plate.

[0009] The multi-point molding assembly has multiple components, which are arranged in parallel vertically; the line connecting the outer ends of the piston heads of two adjacent multi-point molding assemblies forms a 45° angle with the horizontal line.

[0010] The pushing mechanism includes a lower positioning plate vertically fixed below the upper positioning plate, a lower screw rod vertically passing through the lower positioning plate, and a lower drive motor drivenly connected to the outer end of the lower screw rod. The two ends of the lower screw rod are respectively rotatably connected to the two ends of the bracket.

[0011] One end of the scraper body is horizontally inserted through the lower positioning plate, and the other end is positioned below the pressure rod, which is located at the outer end of the bracket.

[0012] The lateral moving mechanism includes a limiting groove plate horizontally arranged above the top plate, an upper screw rod passing through the limiting groove plate, an upper drive motor coaxially connected to one end of the upper screw rod, a moving block movably arranged on the side of the upper screw rod, and the moving block movably locked inside the limiting groove plate; a positioning block is fixed on the outside of the moving block, the laser cutting machine is vertically fixed on the positioning block, and an industrial camera is fixedly arranged at the bottom end of the moving block.

[0013] The longitudinal moving mechanism includes a first slide rod and a second slide rod arranged parallel to each other, and a support rod whose two ends are respectively fixedly and perpendicularly to the inner sides of the first slide rod and the second slide rod. The outer side of the first slide rod or the second slide rod is fixed with a meshing tooth, which meshes with a gear and is driven by a power motor.

[0014] The upper end of the bracket is provided with slide rails on both sides, and the first slide rod and the second slide rod are slidably mounted on the slide rails.

[0015] A method for preparing the scraper body in an apparatus for preparing irregularly shaped plaster lines specifically includes the following steps:

[0016] Step S1: Take an irregularly shaped plaster line sample and position it vertically on the support, in front of the multi-point molding component;

[0017] Step S2: Remove the multi-point molding component and fit the irregular plaster line sample onto the movable head of the multi-point molding component;

[0018] Step S3: Start the lower drive motor, the lower positioning plate drives the upper positioning plate to move, and the movable head approaches the irregular plaster line sample;

[0019] Step S4: At this time, the air pump is used to inflate the air tube and the fixed cylinder. Under the pushing action of the piston column, multiple moving heads simultaneously abut against the outside of the irregular plaster line sample.

[0020] Step S5: Remove the irregular plaster line sample, lay the scraper body under the multi-point forming component, and through the combined action of the lateral and longitudinal moving mechanisms, make the industrial camera positioned above the multiple moving heads.

[0021] Step S6: Use an industrial camera to take pictures of the relative positions of multiple moving heads and the scraper body, upload them to the software on the host computer, draw lines along the changes of the outer end of the moving heads, and convert the images into vector paths in the software;

[0022] Step S7: Import the vector image into the laser cutting machine software and use the laser cutting machine to cut the scraper body;

[0023] Step S8: Remove the processed scraper body, deburr the edges, and compare the scraper body with the original plaster line sample to verify its fitting accuracy.

[0024] The scraper body is made of PVC board, acrylic board or high-quality plywood that is easy to cut and polish.

[0025] Technical details not described in detail in this solution are based on the conventional understanding of those skilled in the art, combined with existing technology and the accompanying drawings, and will not be elaborated further here. The models, sizes, dimensions, and installation precision of the various components involved in this solution are all implemented based on common knowledge in the field. Dust removal during laser cutting, such as covering the entire device with a dust cloth, is existing technology and will not be detailed here.

[0026] The beneficial effects of this invention are as follows:

[0027] (1) When preparing irregular gypsum line shaping scrapers, by changing irregular gypsum line samples with different cross-sectional contours, countless line cross-sectional shapes can be obtained. Using multi-point forming components, it can perfectly adapt to complex on-site conditions such as curves and irregular shapes.

[0028] (2) The multi-point molding component has the following technical advantages:

[0029] First, it connects to the drive mechanism, enabling convenient and quick adjustment of the movement of multiple moving heads;

[0030] Secondly, under the action of the air pump, the movable head can contact the outer contour of the irregular plaster line sample. Utilizing the principle of multi-point forming in the field of metal materials, multiple movable heads present a shape that matches the outer side of the irregular plaster line sample.

[0031] Third, from top to bottom, multiple moving heads and scraper bodies are photographed using an industrial camera, which facilitates subsequent photo processing and laser cutting.

[0032] (3) The multi-point molding components in this scheme are multiple and arranged in parallel. The line connecting the outer end centers of the piston heads in two adjacent multi-point molding components forms a 45° angle with the horizontal line.

[0033] This ensures that the movable heads that come into contact with the outer side of the irregular plaster line sample are more densely packed, and the spline curves obtained through the movable heads are more accurate, thereby obtaining a scraper whose size matches the irregular plaster line sample.

[0034] (4) In this solution, the combined effect of the lateral and longitudinal moving mechanisms enables the rapid adjustment of the position of the laser cutting machine and the industrial camera;

[0035] (5) The scraper manufacturing designed in this scheme no longer relies heavily on personal skills, improves production efficiency, enables standardized mass production, and ensures accuracy by adjusting the size of the movable head, making it particularly suitable for complex and irregular plaster lines with external patterns. In addition, since it is an automated laser cutting process, people can avoid the harm to the operator's health caused by the dust generated during the preparation process. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the scraper conveyor in this invention. Figure 1 .

[0037] Figure 2 This is a schematic diagram of the overall structure of the scraper conveyor in this invention. Figure 2 .

[0038] Figure 3 This is a schematic diagram of the structure of the multi-point molding component in this invention.

[0039] Figure 4 This is a top view of the multi-point molding component in this invention.

[0040] Figure 5 This is a schematic diagram of a single-row structure of the multi-point molding component in this invention.

[0041] Figure 6 This is a schematic diagram of the lateral movement mechanism in this invention.

[0042] Figure 7This is a schematic diagram of the connection structure between the support and the longitudinal moving mechanism in this invention.

[0043] Figure 8 This is a schematic diagram of the scraper body in this invention.

[0044] The attached figures are labeled as follows: 1. Bracket; 2. Upper positioning plate; 3. Lower positioning plate; 4. Scraper body; 5. Multi-point forming assembly; 50. Spline curve; 51. Moving head; 52. Piston column; 53. Piston cylinder; 54. Fixed cylinder; 541. Inflation tube; 6. First slide rod; 7. Pressure rod; 8. Irregular gypsum line sample; 9. Stop bar; 10. Second slide rod; 101. Gear; 102. Meshing teeth; 11. Positioning block; 12. Laser cutting machine; 13. Moving block; 14. Limiting groove plate; 141. Industrial camera; 15. Upper screw; 16. Air pump; 17. Support rod; 18. Upper drive motor; 19. Lower screw; 20. Lower drive motor; 21. Folding rod frame. Detailed Implementation

[0045] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0046] Example 1

[0047] See Figures 1-8 A scraper preparation device for irregularly shaped plaster lines includes a support 1, a pushing mechanism on the support 1, a multi-point forming component 5 driven connection between the pushing mechanism and the multi-point forming component 5, a scraper body 4 movably arranged below the multi-point forming component 5, a laser cutting machine 12 arranged above the multi-point forming component 5, the laser cutting machine 12 being connected to a transverse moving mechanism, the transverse moving mechanism being connected to a longitudinal moving mechanism, and an industrial camera 141 fixedly arranged below the transverse moving mechanism.

[0048] The multi-point molding assembly 5 includes a horizontally arranged piston cylinder 53, a piston rod 52 slidably disposed at one end in the piston cylinder 53, a movable head 51 fixed at the other end of the piston rod 52, a fixed cylinder 54 connected to one end of the piston cylinder 53, an inflation pipe 541 connected to the fixed cylinder 54 at one end, and an inflation pump 16 connected to the other end of the inflation pipe 541. The piston cylinder 53 has multiple piston cylinders arranged side by side and parallel to each other. The fixed cylinder 54 and the inflation pump 16 are fixedly connected to the upper positioning plate 2.

[0049] It should be noted that, as shown in the attached diagram, for the sake of simplifying the design, the air inflator 541 and the air pump 16 in this scheme are not directly connected together, but this does not affect the understanding of the design.

[0050] There are multiple multi-point forming components 5, which are arranged in parallel vertically; the line connecting the outer center of the piston head in two adjacent multi-point forming components 5 forms a 45° angle with the horizontal line.

[0051] The pushing mechanism includes a lower positioning plate 3 vertically fixed below the upper positioning plate 2, a lower screw 19 vertically passing through the lower positioning plate 3, and a lower drive motor 20 drivenly connected to the outer end of the lower screw 19. The two ends of the lower screw 19 are respectively rotatably connected to the two ends of the bracket 1.

[0052] One end of the scraper body 4 is horizontally inserted through the lower positioning plate 3, and the other end is positioned below the pressure rod 7, which is located at the outer end of the bracket 1.

[0053] The lateral movement mechanism includes a limiting groove plate 14 horizontally arranged above the top plate, an upper screw 15 passing through the limiting groove plate 14, an upper drive motor 18 coaxially connected to one end of the upper screw 15, a moving block 13 movably arranged on the side of the upper screw 15, and the moving block 13 is movably locked inside the limiting groove plate 14; a positioning block 11 is fixed on the outside of the moving block 13, the laser cutting machine 12 is vertically fixed on the positioning block 11, and an industrial camera 141 is fixed at the bottom of the moving block 13.

[0054] The longitudinal moving mechanism includes a first slide rod 6 and a second slide rod 10 arranged in parallel to each other, and a support rod 17 whose two ends are respectively vertically fixed to the inner sides of the first slide rod 6 and the second slide rod 10. A meshing tooth 102 is fixed on the outer side of the first slide rod 6 or the second slide rod 10. The meshing tooth 102 is meshed with a gear 101, and the gear 101 is driven by a power motor.

[0055] The upper end of the bracket 1 is provided with slide rails on both sides, and the first slide rod 6 and the second slide rod 10 are slidably mounted on the slide rails.

[0056] More preferably, there are two support rods 17 arranged parallel to each other, and the limiting groove plate 14 runs vertically through them and is located directly above the two support rods 17. Therefore, the industrial camera 141 is secured between the two support rods 17, which helps to protect the industrial camera.

[0057] More preferably, a folding rod frame 21 is provided on the outside of the support 1, forming a triangular structure with the support 1, so that the first slide rod 6 and the second slide rod 10 can slide on the folding rod frame 21, and the folding rod frame 21 plays the role of supporting and positioning the first slide rod 6 and the second slide rod 10.

[0058] The specific working process of this invention is as follows:

[0059] In this solution, the pushing mechanism and the multi-point forming component 5 are separately driven and connected. When in use, the pushing mechanism is used to bring the multi-point forming component 5 close to the irregular plaster line sample 8. Specifically, under the action of the lower drive motor 20, the lower screw 19 is rotated, and the lower screw 19 drives the lower positioning plate 3 to move. At this time, the irregular plaster line sample 8 is placed vertically, which is convenient for subsequent laser cutting. An attached drawing of the irregular plaster line sample 8 is provided in the attached drawing of this solution.

[0060] When the movable head 51 in the multi-point molding component 5 is brought close to the irregular plaster line sample 8, the air pump 16 is started. Under the action of the air pump 16, the movable head 51 is driven to move, so that the multiple movable heads 51 are aligned on the outer contour surface of the irregular plaster line sample 8. Then the air pump 16 is turned off, and under the action of the lower drive motor 20, the movable head 51 is separated from the irregular plaster line sample 8.

[0061] Place the scraper body 4 below the multi-point forming component 5, and use the horizontal and vertical moving mechanisms to set the industrial camera 141 above the multiple moving heads 51; take pictures using the industrial camera 141, and transmit the pictures to the host computer for processing. In the software of the host computer, connect the outer center of the multiple moving heads 51 through the spline curve 50 to form a vector processing curve; then import the processed pictures into the laser cutting machine 12 software and cut.

[0062] More preferably, a stop bar 9 is provided at the outer end of the bracket 1, so that the irregular plaster line sample 8 abuts against the stop bar 9. When the positioning block 11 and the movable head 51 both contact the outer side of the irregular plaster line sample 8, it helps to achieve comprehensive positioning of the irregular plaster line sample 8.

[0063] Example 2

[0064] A method for preparing the scraper body 4 in an apparatus for preparing irregularly shaped plaster lines specifically includes the following steps:

[0065] Step S1: Take an irregularly shaped plaster line sample 8 and position it vertically on the bracket 1, in front of the multi-point molding component 5;

[0066] Step S2: Take out the multi-point molding component 5 and make the irregular plaster line sample 8 fit into the movable head 51 position of the multi-point molding component 5;

[0067] Step S3: Start the lower drive motor 20, the lower positioning plate 3 drives the upper positioning plate 2 to move, and make the movable head 51 approach the irregular plaster line sample 8;

[0068] Step S4: At this time, the air pump 16 is used to inflate the air tube 541 and the fixed cylinder 54. Under the pushing action of the piston column 52, multiple moving heads 51 simultaneously abut against the outside of the irregular plaster line sample 8.

[0069] Step S5: Remove the irregular plaster line sample 8, lay the scraper body 4 below the multi-point forming component 5, and through the combined action of the horizontal and vertical moving mechanisms, make the industrial camera 141 located above the multiple moving heads 51.

[0070] Step S6: Use industrial camera 141 to take pictures of the relative positions of multiple moving heads 51 and scraper body 4, upload them to the software of the host computer, draw lines along the changes of the outer end of the moving head 51, and convert the image into a vector path in the software.

[0071] Step S7: Import the vector image into the laser cutting machine 12 software, and use the laser cutting machine 12 to cut the scraper body 4; the specific operation steps involved in laser cutting are easy for those skilled in the art to operate, and will not be described in detail here.

[0072] Step S8: Remove the processed scraper body 4, deburr the edges, and compare the scraper body 4 with the original plaster line sample to verify the fitting accuracy.

[0073] The scraper body 4 is made of PVC board, acrylic board or high-quality plywood that is easy to cut and polish.

[0074] It's important to note that when taking high-quality photos or scanning, ensure strong contrast between lines and background, place the substrate in a well-lit, shadow-free location, and avoid perspective distortion. When converting to a vector path in software, import the photo into free software like Inkscape or Adobe Illustrator; use the software's measurement / scaling tools to scale the entire image to a 1:1 scale, based on a reference object (such as a ruler) you used when taking the photo. This step is crucial as it determines the accuracy of the cutting dimensions. Use the "Path" - "Trace Bitmap" function. Adjust the threshold and parameters so the software can accurately recognize your hand-drawn lines and generate a vector path overlaid on them. Delete the original image, keeping only the generated vector path.

[0075] When importing the software into the laser cutting machine 12 and starting the cutting process, save the cleaned vector path in a format supported by the laser cutting software, typically DXF or SVG. Open this file in the software accompanying the laser cutting machine 12 (such as Light Burn or RD Works). Set parameters: Based on the material and thickness of the sheet metal, set the correct laser power, speed, and number of cuts, etc. Execute the cutting: Fix the sheet metal on the machine's worktable, focus, and send the command to start cutting.

[0076] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A device for preparing irregularly shaped plaster lines using a scraper, comprising a support (1), characterized in that, A pushing mechanism is provided on the bracket (1), and the pushing mechanism is driven and connected to the multi-point forming component (5). A scraper body (4) is movably provided below the multi-point forming component (5). A laser cutting machine (12) is provided above the multi-point forming component (5). The laser cutting machine (12) is connected to the transverse moving mechanism. The transverse moving mechanism is connected to the longitudinal moving mechanism. An industrial camera (141) is fixedly provided below the transverse moving mechanism.

2. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, The multi-point molding assembly (5) includes a horizontally arranged piston cylinder (53), a piston rod (52) with one end slidably arranged in the piston cylinder (53), a movable head (51) fixed at the other end of the piston rod (52), a fixed cylinder (54) connected to one end of the piston cylinder (53), an inflation pipe (541) connected to the fixed cylinder (54) at one end, and an inflation pump (16) connected to the other end of the inflation pipe (541). The piston cylinder (53) has multiple piston cylinders arranged side by side and parallel to each other. The fixed cylinder (54) and the inflation pump (16) are fixedly connected to the upper positioning plate (2).

3. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, The multi-point forming component (5) has multiple components and is arranged in parallel vertically; the line connecting the outer end centers of the piston heads in two adjacent multi-point forming components (5) forms a 45° angle with the horizontal line.

4. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, The pushing mechanism includes a lower positioning plate (3) vertically fixed below the upper positioning plate (2), a lower screw (19) vertically passing through the lower positioning plate (3), and a lower drive motor (20) drivenly connected to the outer end of the lower screw (19). The two ends of the lower screw (19) are respectively rotatably connected to the two ends of the bracket (1).

5. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, One end of the scraper body (4) is horizontally inserted through the lower positioning plate (3), and the other end is positioned below the pressure rod (7), which is located at the outer end of the bracket (1).

6. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, The lateral moving mechanism includes a limiting groove plate (14) horizontally arranged above the top plate, an upper screw (15) passing through the limiting groove plate (14), an upper drive motor (18) coaxially connected to one end of the upper screw (15), a moving block (13) movably arranged on the side of the upper screw (15), the moving block (13) being movably locked inside the limiting groove plate (14); a positioning block (11) is fixed on the outside of the moving block (13), the laser cutting machine (12) is vertically fixed on the positioning block (11), and an industrial camera (141) is fixed at the bottom of the moving block (13).

7. The device for preparing irregularly shaped plaster lines according to claim 1, characterized in that, The longitudinal moving mechanism includes a first slide rod (6) and a second slide rod (10) arranged parallel to each other, and a support rod (17) whose two ends are respectively vertically fixed to the inner sides of the first slide rod (6) and the second slide rod (10). The outer side of the first slide rod (6) or the second slide rod (10) is fixed with a meshing tooth (102), which meshes with a gear (101), and the gear (101) is driven by a power motor. The upper ends of the bracket (1) are respectively provided with slide rails, and the first slide rod (6) and the second slide rod (10) are respectively slidably disposed on the slide rails.

8. A method for preparing the scraper body in a scraper preparation device for irregularly shaped plaster lines as described in any one of claims 1-7, characterized in that, Specifically, the steps include the following: Step S1: Take a sample of irregular plaster line (8) and position it vertically on the bracket (1) in front of the multi-point molding component (5); Step S2: Take out the multi-point molding component (5) so that the irregular plaster line sample (8) fits into the movable head (51) of the multi-point molding component (5); Step S3: Start the lower drive motor (20), the lower positioning plate (3) drives the upper positioning plate (2) to move, and make the movable head (51) approach the irregular plaster line sample (8). Step S4: At this time, the air pump (16) is used to inflate the air tube (541) and the fixed cylinder (54). Under the pushing action of the piston column (52), multiple moving heads (51) simultaneously abut against the outside of the irregular plaster line sample (8). Step S5: Remove the irregular plaster line sample (8), lay the scraper body (4) under the multi-point forming component (5), and make the industrial camera (141) above the multiple moving heads (51) through the combined action of the horizontal moving mechanism and the vertical moving mechanism. Step S6: Use an industrial camera (141) to take pictures of the relative positions of multiple moving heads (51) and scraper body (4), upload them to the software of the host computer, draw lines along the changes of the outer end of the moving head (51), and convert the image into a vector path in the software. Step S7: Import the vector image into the laser cutting machine (12) software and use the laser cutting machine (12) to cut the scraper body (4); Step S8: Remove the processed scraper body (4), deburr the edges, and compare the scraper body (4) with the original plaster line sample to verify its fitting accuracy.

9. A method for preparing a scraper body according to claim 8, characterized in that, The scraper body (4) is made of PVC board, acrylic board or high-quality multi-layer plywood that is easy to cut and polish.

Images