A casting machine capable of uniform doctoring

Abstract

The utility model discloses a can even scraping's casting machine, including lathe main part, the left end of lathe main part is provided with unwinding subassembly, the right end of lathe main part is provided with winding subassembly, the top of lathe main part both sides is provided with mounting panel, and two groups mounting panel top is provided with fixed plate, and the bottom of fixed plate is provided with adjusting mechanism, and the bottom of fixed plate is provided with connecting plate through adjusting mechanism, and the bottom of connecting plate is provided with scraper, and the front and back both ends of scraper all are with lathe main part inboard one end sliding close -fitted, and the front and back both ends of lathe main part inboard are evenly provided with two groups of sliding hole, and four groups lathe main part sliding hole all are provided with the connecting block of sliding, and four group connecting blocks opposite one end all are provided with the tensioning roller, and the front and back both ends of two groups tensioning roller all are with lathe main part inboard front and back both sides sliding close -fitted, and four groups connecting block another end all are provided with lifting set.

Description

Technical Field

[0001] This utility model relates to the field of casting machine technology, and more specifically, to a casting machine that can uniformly scrape and press. Background Technology

[0002] Casting machines are key pieces of equipment in the production of plastics, films, and other materials. They release the substrate through an unwinding assembly, shape it by a scraper, and then rewind it through a winding assembly. They are widely used in packaging, electronics, and other fields. Their core function is to uniformly scrape and press the slurry or molten material onto the substrate surface using a scraper, ensuring consistent product thickness, while simultaneously relying on tension rollers to maintain stable substrate tension and prevent wrinkles or stretching deformation.

[0003] An existing casting machine capable of uniform scraping and pressing has been found to have the following issues during use: 1. In existing casting machines, the scrapers are mostly fixed to the frame with bolts. When adjusting the height, the bolts need to be loosened one by one and manually calibrated. This is not only cumbersome to operate, but also prone to uneven force, which can cause the height of the two ends of the scraper to deviate, resulting in inconsistent scraping thickness and affecting the stability of product quality.

[0004] 2. The function of the tension roller is to change the tension of the substrate by adjusting its height. Existing devices mostly use a single set of bolts or worm gears for adjustment, which requires separate operation of the front and rear adjustment structures and cannot achieve synchronous linkage, thus resulting in poor practicality. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a casting machine that can uniformly scrape and press, so as to solve the technical problems mentioned in the background art, such as inconvenient scraper height adjustment and poor uniformity, and low tension roller adjustment efficiency.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a casting machine capable of uniform scraping and pressing, comprising a machine tool body, an unwinding assembly at the left end of the machine tool body, a winding assembly at the right end of the machine tool body, mounting plates on both the front and rear sides of the top of the machine tool body, a fixing plate on the top of the two sets of mounting plates, an adjusting mechanism at the bottom of the fixing plate, a connecting plate at the bottom of the fixing plate via the adjusting mechanism, a scraper at the bottom of the connecting plate, the front and rear ends of the scraper slidingly and tightly against one end of the inner side of the machine tool body, two sets of sliding holes evenly arranged on the front and rear ends of the inner side of the machine tool body, connecting blocks slidably arranged in each of the four sets of sliding holes of the machine tool body, tension rollers arranged at opposite ends of each of the four sets of connecting blocks, the front and rear ends of the two sets of tension rollers slidingly and tightly against the front and rear sides of the inner side of the machine tool body, and a lifting assembly arranged at the other end of each of the four sets of connecting blocks.

[0007] The present invention is further configured such that the adjustment mechanism includes a bidirectional screw, a groove is provided at the bottom of the fixed plate, the bidirectional screw is rotatably disposed within the groove of the fixed plate, and sliders are threaded to both ends of the outer side of the bidirectional screw. The bottoms of the two sets of sliders are slidably connected to one end of the groove of the fixed plate, and a sliding plate is provided at the bottom of each set of sliders. A hinge assembly is provided at the bottom of each set of sliding plates, and the bottoms of the two sets of sliding plates are connected to the top of the connecting plate through the hinge assembly. The bidirectional screw drives the two sets of sliders to move synchronously in opposite directions. Through the linkage between the sliding plate and the hinge assembly, the scraper can be raised and lowered smoothly, solving the problem of scraper tilting caused by traditional single-end adjustment, ensuring that the height of both ends of the scraper is consistent, and significantly improving the uniformity of scraping pressure. The sliding cooperation between the slider and the groove restricts the adjustment direction, avoiding lateral deviation of the scraper during the adjustment process, ensuring the accuracy of scraping pressure. The height adjustment can be completed simply by rotating the bidirectional screw, which is simple and quick to operate, without the need to loosen or tighten the bolts one by one, greatly shortening the adjustment time, and is especially suitable for production scenarios with frequent model changes.

[0008] The present invention is further configured such that the hinge assembly includes support rods, and the two sets of slide plates are hinged to the front and rear sides of the bottom via hinge members. The top sides of the connecting plate are evenly hinged to the other end of the support rods via two sets of hinge members respectively. The four sets of support rods are symmetrically distributed and form a stable triangular support structure through the hinge members, so that the connecting plate is evenly stressed, avoiding tilting caused by unilateral stress when the scraper is raised and lowered, and further ensuring the uniformity of scraping. The rotation angle of the support rods changes synchronously with the distance between the slide plates, realizing continuous stepless adjustment of the scraper height, which can accurately adapt to the scraping requirements of films of different thicknesses.

[0009] The present invention is further configured such that the lifting assembly includes a drive motor and two sets of mounting blocks. Each set of mounting blocks is connected to one end of a connecting block on opposite sides. A fixing block is provided at the bottom of the front end of the machine tool body. A drive motor is located at the bottom of the fixing block. The top output end of the drive motor passes through the fixing block and is provided with a connecting screw. A threaded cylinder is threadedly connected to the top of the connecting screw, and the top of the threaded cylinder is connected to the bottom of the corresponding mounting block. The screw drive driven by the drive motor realizes the automated lifting and lowering of the tension roller, replacing the traditional manual adjustment method, significantly reducing the labor intensity of workers, and providing faster adjustment speed, suitable for large-scale continuous production. The threaded cylinder and the connecting screw have a precise transmission ratio, and the height of the tension roller can be precisely adjusted by controlling the rotation angle of the motor, ensuring stable film tension. The mounting block drives the two sets of connecting blocks to move synchronously, realizing the synchronous lifting and lowering of both ends of the tension roller, ensuring uniform force on the film.

[0010] The present invention is further configured such that each of the two sets of mounting plates is provided with a sliding groove at one end, and a guide block is slidably disposed in the sliding groove of each of the two sets of mounting plates. The opposite ends of the two sets of guide blocks are connected to one end of the connecting plate. The sliding cooperation between the guide block and the sliding groove of the mounting plate provides longitudinal guidance for the connecting plate, solves the problem of lateral offset that may occur when the adjustment mechanism drives the scraper to rise and fall, ensures that the scraper always moves in the vertical direction, and further improves the uniformity of scraping pressure.

[0011] The present invention is further configured such that the front end of the bidirectional screw passes through the groove of the fixed plate and is provided with a rotating handle; the rotating handle increases the operating lever arm of the bidirectional screw, so that the operator can easily rotate the screw without the aid of tools.

[0012] The present invention is further configured such that L-shaped blocks are provided on both the front and rear sides of the top of the machine tool body, guide rods are provided at the bottom of the four sets of L-shaped blocks, support blocks are provided at the bottom of the four sets of guide rods, one end of each set of support blocks is connected to one end of the machine tool body, and reserved holes are provided at both ends of the top of the two sets of mounting blocks. The reserved holes of the four sets of mounting blocks are slidably connected to the outer side of a set of guide rods. The sliding cooperation between the guide rods and the reserved holes of the mounting blocks provides precise guidance for the lifting and lowering of the tension roller, solves the tilting problem that may occur when the lifting component drives the tension roller to move, ensures that the tension roller always remains horizontal, makes the film tension distribution uniform, and avoids local overstretching or loosening.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a casting machine that can uniformly scrape and press, which has the following beneficial effects: 1. The adjustment mechanism enables quick adjustment of the scraper height, replacing the cumbersome operation of traditional bolt fixing and significantly shortening the changeover or calibration time. The sliding and close contact design between the scraper and the machine tool body ensures that the scraper remains horizontal during the adjustment process, avoiding uneven scraping caused by height deviation at both ends, and improving the consistency of film thickness. The sliding and close contact between the tension roller and the machine tool body ensures smooth lifting and lowering, avoiding wrinkles or stretching deformation of the film due to tension fluctuations. The overall structure takes into account both the uniformity of scraper adjustment and the speed of tension roller adjustment, significantly improving the quality stability and production efficiency of cast products.

[0014] 2. The screw drive driven by the drive motor realizes the automatic lifting and lowering of the tension roller, replacing the traditional manual adjustment method, which greatly reduces the labor intensity of the workers and the adjustment speed is faster, making it suitable for large-scale continuous production. The screw cylinder and the connecting screw have a precise transmission ratio, and the height of the tension roller can be precisely adjusted by controlling the rotation angle of the motor to ensure stable film tension. The mounting block drives the two sets of connecting blocks to move synchronously, realizing the synchronous lifting and lowering of both ends of the tension roller, ensuring uniform force on the film. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of a casting machine capable of uniform scraping according to the present invention; Figure 2 This is a three-dimensional structural diagram of the rear view of a casting machine capable of uniform scraping according to the present invention. Figure 3 This is a three-dimensional schematic diagram of the cross-sectional structure of a casting machine capable of uniform scraping according to the present invention. Figure 4 This is a three-dimensional schematic diagram of the connection relationship between the tension roller, connecting block, mounting block, guide rod, drive motor, etc. of this utility model; Figure 5 This is a three-dimensional structural diagram illustrating the connection relationship between the bidirectional screw, slider, slide plate, connecting plate, scraper, etc. of this utility model.

[0016] In the diagram: 1. Machine tool body; 2. Unwinding assembly; 3. Rewinding assembly; 4. Mounting plate; 5. Fixing plate; 6. Connecting plate; 7. Scraper; 8. Connecting block; 9. Tensioning roller; 10. Bidirectional screw; 11. Slider; 12. Slide plate; 13. Support rod; 14. Drive motor; 15. Mounting block; 16. Connecting screw; 17. Threaded cylinder; 18. Fixing block; 19. Guide block; 20. Rotary handle; 21. L-shaped block; 22. Guide rod; 23. Support block. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figure 1-5A casting machine capable of uniform scraping and pressing includes a machine body 1, an unwinding assembly 2 at the left end of the machine body 1, a winding assembly 3 at the right end of the machine body 1, mounting plates 4 on both the front and rear sides of the top of the machine body 1, fixing plates 5 on the top of the two sets of mounting plates 4, an adjustment mechanism at the bottom of the fixing plates 5, a connecting plate 6 at the bottom of the fixing plates 5 via the adjustment mechanism, a scraper 7 at the bottom of the connecting plate 6, the front and rear ends of the scraper 7 slidingly and tightly against one end of the inner side of the machine body 1, two sets of sliding holes evenly arranged on the front and rear ends of the inner side of the machine body 1, connecting blocks 8 slidably arranged in the four sets of sliding holes of the machine body 1, tension rollers 9 arranged at opposite ends of the four sets of connecting blocks 8, the front and rear ends of the two sets of tension rollers 9 slidingly and tightly against the front and rear sides of the inner side of the machine body 1, and a lifting assembly arranged at the other end of the four sets of connecting blocks 8.

[0021] In this embodiment, during the casting process, the unwinding assembly 2 releases the film substrate, the film is laid above the two sets of tension rollers 9 and moves towards the winding assembly 3. The operator adjusts the height of the connecting plate 6 through the adjustment mechanism, and the scraper 7 rises and falls synchronously with the connecting plate 6 until the bottom of the scraper 7 forms the required scraping distance with the film surface, and the front and rear ends of the scraper 7 are always in close contact with the inner side of the machine tool body 1. At the same time, the lifting assemblies corresponding to the four sets of connecting blocks 8 are operated to drive the connecting blocks 8 to slide in the sliding holes of the machine tool body 1. The tension rollers 9 rise and fall with the connecting blocks 8 to adjust the tension of the film. The film is always laid above the tension rollers 9. During the operation, the winding assembly 3 synchronously winds up the film after it has been evenly scraped by the scraper 7.

[0022] More specifically, when adjusting the height of the tension roller 9, the drive motor 14 is started, and its top output end drives the connecting screw 16 to rotate within the fixed block 18. The threaded cylinder 17 is threadedly engaged with the connecting screw 16, causing the mounting block 15 to rise and fall. The connecting block 8 at the opposite end of the mounting block 15 slides within the sliding hole of the machine tool body 1 along with the mounting block 15. The tension roller 9 rises and falls synchronously with the connecting block 8. When the connecting screw 16 rotates in the forward direction, the threaded cylinder 17 drives the mounting block 15 to rise, the tension roller 9 rises, and the film tension increases; when it rotates in the reverse direction, the mounting block 15 falls, the tension roller 9 falls, and the film tension decreases.

[0023] Please see Figure 1 and Figure 4 As one embodiment of the adjustment mechanism: the adjustment mechanism includes a bidirectional screw 10, a groove is provided at the bottom of the fixed plate 5, the bidirectional screw 10 is rotatably arranged in the groove of the fixed plate 5, and sliders 11 are threadedly connected to both ends of the outer side of the bidirectional screw 10. The bottoms of the two sets of sliders 11 are slidably connected to one end of the groove of the fixed plate 5, and the bottoms of the two sets of sliders 11 are provided with slide plates 12. The bottoms of the two sets of slide plates 12 are provided with hinge components, and the bottoms of the two sets of slide plates 12 are connected to the top of the connecting plate 6 through the hinge components.

[0024] Specifically, when adjusting the height of the scraper 7, rotating the bidirectional screw 10 causes the sliders 11 at both outer ends to slide in opposite directions within the grooves of the fixed plate 5. The slide plate 12 at the bottom of the slider 11 moves synchronously with the slider 11. The slide plate 12 drives the connecting plate 6 to rise and fall through the hinge assembly at the bottom. When the two sets of sliders 11 approach each other, the slide plate 12 pushes the hinge assembly to unfold, and the connecting plate 6 drives the scraper 7 to rise. When the sliders 11 move away from each other, the hinge assembly retracts, and the connecting plate 6 drives the scraper 7 to fall. Throughout the process, the slider 11 always slides along the grooves of the fixed plate 5, ensuring a stable adjustment trajectory.

[0025] Please refer to Figures 2-4 As a further embodiment of the adjustment mechanism: the hinge assembly includes a support rod 13. The two sets of sliding plates 12 are hinged to the front and rear sides of the bottom by the support rod 13 through hinge members. The top sides of the connecting plate 6 are evenly hinged to the other end of the support rod 13 through two sets of hinge members.

[0026] Specifically, when the slide plate 12 moves with the slider 11, the support rods 13 on the front and rear sides of its bottom rotate through the hinge: when the slide plates 12 move closer to each other, the support rods 13 retract inward around the hinge, pushing the connecting plate 6 to move upward, and the scraper 7 rises synchronously with the connecting plate 6; when the slide plates 12 move further apart, the support rods 13 extend outward, pulling the connecting plate 6 to move downward, and the scraper 7 descends accordingly. The two ends of the support rods 13 are always connected to the slide plate 12 and the connecting plate 6 through the hinge, ensuring the smooth transmission of force.

[0027] In summary, the overall equipment is in use (or running): The unwinding assembly 2 releases the film substrate, and the film is laid above the two sets of tension rollers 9 and moves toward the winding assembly 3. When the tension rollers 9 are adjusted, the drive motor 14 is started, the connecting screw 16 rotates in the fixed block 18, the threaded cylinder 17 drives the mounting block 15 to rise and fall, the pre-drilled hole at the top of the mounting block 15 slides along the guide direction of the guide rod 22, the connecting block 8 slides synchronously with the mounting block 15 in the sliding hole of the machine tool body 1, and the tension rollers 9 rise and fall accordingly to adjust the film tension.

[0028] When adjusting the height of the scraper 7, hold the rotating handle 20 and rotate the bidirectional screw 10. The slider 11 slides in the opposite direction in the groove of the fixed plate 5, which drives the slide plate 12 to move. The support rod 13 at the bottom of the slide plate 12 rotates through the hinge, pushing the connecting plate 6 to rise and fall. The guide blocks 19 at both ends of the connecting plate 6 slide in the groove of the mounting plate 4 to assist in guidance. The scraper 7 is adjusted to a height that matches the film surface with the connecting plate 6, and the front and rear ends of the scraper 7 are always in close contact with the inner side of the machine tool body 1.

[0029] After the film is evenly scraped and pressed by the scraper 7, it is wound up by the winding assembly 3; when changing the type, the adjustment components can be reversed to adjust to the new processing parameters.

[0030] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A uniform scratchable casting machine, comprising a machine tool body (1), the left end of the machine tool body (1) is provided with a unwinding assembly (2), the right end of the machine tool body (1) is provided with a winding assembly (3), characterized in that: The machine tool body (1) is provided with mounting plates (4) on both the front and rear sides of the top. The two sets of mounting plates (4) are provided with fixing plates (5) on the top. The fixing plates (5) are provided with an adjustment mechanism at the bottom. The fixing plates (5) are provided with a connecting plate (6) at the bottom through the adjustment mechanism. The connecting plate (6) is provided with a scraper (7) at the bottom. The scraper (7) is slidably attached to one end of the inner side of the machine tool body (1) at both the front and rear ends. The machine tool body (1) is provided with two sets of sliding holes evenly at both the front and rear ends. The four sets of sliding holes of the machine tool body (1) are slidably provided with connecting blocks (8). The four sets of connecting blocks (8) are provided with tension rollers (9) at opposite ends. The two sets of tension rollers (9) are slidably attached to the front and rear sides of the inner side of the machine tool body (1) at both the front and rear ends. The four sets of connecting blocks (8) are provided with lifting components at the other end.

2. A casting machine capable of uniform blade pressure according to claim 1, characterized in that: The adjustment mechanism includes a bidirectional screw (10), and a groove is provided at the bottom of the fixed plate (5). The bidirectional screw (10) is rotatably arranged in the groove of the fixed plate (5). Both ends of the bidirectional screw (10) are threadedly connected to sliders (11). The bottoms of the two sets of sliders (11) are slidably connected to one end of the groove of the fixed plate (5). The bottoms of the two sets of sliders (11) are provided with slide plates (12). The bottoms of the two sets of slide plates (12) are provided with hinge components, and the bottoms of the two sets of slide plates (12) are connected to the top of the connecting plate (6) through the hinge components.

3. A casting machine capable of uniform blade pressure according to claim 2, characterized in that: The hinge assembly includes a support rod (13). The two sets of sliding plates (12) are hinged to the front and rear sides of the bottom by the support rod (13) through hinges. The top sides of the connecting plate (6) are evenly hinged to the other end of the support rod (13) through two sets of hinges.

4. The casting machine capable of uniform scraping and pressing according to claim 1, characterized in that: The lifting assembly includes a drive motor (14) and two sets of mounting blocks (15). Both sides of the two sets of mounting blocks (15) are connected to one end of a connecting block (8). A fixing block (18) is provided at the bottom of the front end of the machine tool body (1). A drive motor (14) is provided at the bottom of the fixing block (18). The top output end of the drive motor (14) passes through the fixing block (18) and is provided with a connecting screw (16). A threaded cylinder (17) is threadedly connected to the top of the connecting screw (16). The top of the threaded cylinder (17) is connected to the bottom of the corresponding mounting block (15).

5. A casting machine capable of uniform scraping and pressing according to claim 2, characterized in that: Both sets of mounting plates (4) are provided with a sliding groove at one end, and a guide block (19) is slidably provided in the sliding groove of both sets of mounting plates (4). The two sets of guide blocks (19) are connected to one end of the connecting plate (6) at one end.

6. A casting machine capable of uniform scraping and pressing according to claim 2, characterized in that: The front end of the bidirectional screw (10) passes through the groove of the fixed plate (5) and is provided with a rotating handle (20).

7. A casting machine capable of uniform scraping and pressing according to claim 4, characterized in that: The machine tool body (1) has L-shaped blocks (21) on both the front and rear sides of the top. The bottom of the four sets of L-shaped blocks (21) is provided with guide rods (22). The bottom of the four sets of guide rods (22) is provided with support blocks (23). One end of the four sets of support blocks (23) is connected to one end of the machine tool body (1). The top ends of the two sets of mounting blocks (15) are provided with reserved holes. The reserved holes of the four sets of mounting blocks (15) are slidably connected to the outside of a set of guide rods (22).

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