Continuous edge scraping machine

Abstract

The utility model relates to the field of ceramic tile manufacturing equipment, and discloses a continuous edge scraping machine which comprises a green brick conveying line and an edge scraping mechanism arranged in the middle of the green brick conveying line. The edge scraping mechanism comprises a first rack, a scraper assembly arranged on the top of the first rack and a scraper driving mechanism used for driving the scraper assembly to move left and right in a reciprocating mode. Under the horizontal projection, the moving route of the scraper assembly and the moving route of the green brick obliquely intersect to form an acute angle, and the scraper assembly is used for scraping the front end face of the green brick. According to the continuous edge scraping machine, the limitation of a traditional edge scraping machine is broken through, the edge scraping mechanism is ingeniously and obliquely arranged, the green brick conveying speed and the edge scraping speed are dynamically adjusted, under the condition that a green brick conveying line is not stopped, edge scraping operation is synchronously achieved, time loss caused by frequent starting and stopping of the conveying line is completely eradicated, the productivity is greatly improved, and the production cost is reduced. And high-efficiency production is realized.

Description

Technical Field

[0001] This utility model relates to the field of ceramic tile manufacturing equipment, and in particular to a continuous edge scraping machine. Background Technology

[0002] After glazing, excess glaze often remains on the front surface of the brick due to the adhesion of the glaze film. If this residual glaze is not cleaned in time, it will not only affect the accuracy of subsequent processing steps but may also lead to defects in the appearance of the finished product, thus reducing product quality.

[0003] The industry commonly uses edge-scraping machines to scrape the front edge of glazed brick blanks. However, existing edge-scraping machines have significant technical defects. Their operation typically relies on a conveyor line to transport the brick blanks to the edge-scraping machine's processing station. At this time, the conveyor line must stop running, keeping the brick blanks stationary, before the edge-scraping machine can begin the scraping operation. Only after the scraping process is completely completed does the conveyor line resume operation, transporting the scraped brick blanks to the next station and bringing new brick blanks to be scraped. This intermittent working method greatly restricts production efficiency.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a continuous scraping machine, which aims to achieve scraping processing while the brick blanks are continuously transported.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A continuous edge-scraping machine includes a brick blank conveyor line and an edge-scraping mechanism disposed in the middle of the brick blank conveyor line. The brick blank conveyor line is used to transport the brick blanks forward. The edge-scraping mechanism includes a first frame, a scraper assembly disposed on the top of the first frame, and a scraper drive mechanism for driving the scraper assembly to reciprocate left and right. Under horizontal projection, the movement path of the scraper assembly intersects the movement path of the brick blank at an acute angle. The scraper assembly is used to scrape the front end face of the brick blank.

[0008] As a further improvement to the above technical solution, the scraper drive mechanism includes a first synchronous wheel rotatably disposed at one end of the crossbeam of the first frame, a second synchronous wheel rotatably disposed at the other end of the crossbeam of the first frame, a synchronous belt wound around the first and second synchronous wheels, and a first servo motor drivenly connected to the first synchronous wheel, wherein the scraper assembly is fixedly connected to the synchronous belt.

[0009] As a further improvement to the above technical solution, the scraper assembly includes a back plate fixed to the timing belt, a lifting cylinder vertically disposed on the back plate, a fixed plate disposed on the output end of the lifting cylinder, and a scraper disposed at the bottom of the fixed plate.

[0010] As a further improvement to the above technical solution, the crossbeam of the first frame is provided with a laterally extending guide rail, and the back of the back plate is provided with a slider that is slidably connected to the guide rail.

[0011] As a further improvement to the above technical solution, the lifting cylinder is a double-rod cylinder and is provided with a rod head block. A rear plate is provided on the front end face of the rod head block. A front plate is provided on the top of the fixed plate in front of the rear plate. A through hole extending forward and backward is provided on the front plate. A threaded hole corresponding to the through hole is provided on the rear plate. The hand-tightening screw passes through the through hole in sequence and connects with the threaded hole.

[0012] As a further improvement to the above technical solution, the brick blank transmission line includes a second frame, and a first transmission section and a second transmission section disposed on the second frame. The second transmission section is located downstream of the first transmission section. The first transmission section and the second transmission section are independent of each other and form a clearance zone between them for the scraper assembly to descend and scrape the edge.

[0013] As a further improvement to the above technical solution, the first transmission section includes a drive shaft rotatably mounted on a second frame, a plurality of drive pulleys spaced apart on the drive shaft, a number of driven pulleys that are the same as and correspond one-to-one with the drive pulleys, a plurality of transmission belts wound around the drive pulleys and the corresponding driven pulleys, and a second servo motor driven and connected to the drive shaft.

[0014] As a further improvement to the above technical solution, a brick blank centering structure is provided on the brick blank transmission line, located upstream of the scraping mechanism.

[0015] As a further improvement to the above technical solution, the scraper assembly includes a protective sensor for detecting whether the scraper has entered the brick blank.

[0016] As a further improvement to the above technical solution, the moving path of the scraper assembly intersects with the moving path of the brick blank at an acute angle of 45° to 60°.

[0017] The beneficial effects of this utility model are as follows: The continuous scraping machine provided by this utility model breaks through the limitations of traditional scraping machines. It cleverly sets the scraping mechanism at an angle and dynamically adjusts the brick conveying and scraping speed. The scraping operation is achieved synchronously without stopping the brick conveyor line, eliminating time losses caused by frequent start-stop of the conveyor line. The number of bricks processed per hour is significantly increased, the production cycle is significantly shortened, and enterprises are helped to greatly increase capacity, achieve efficient production, and create greater economic benefits. Attached Figure Description

[0018] Figure 1 A top view of the continuous edge scraping machine provided by this utility model.

[0019] Figure 2 This is a front view of the continuous edge scraping machine provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the scraper drive mechanism that moves the scraper assembly.

[0021] Figure 4 This is a schematic diagram of the scraper assembly.

[0022] Explanation of main component symbols: 1-Brick blank transmission line, 11-Second frame, 12-First transmission section, 121-Drive shaft, 122-Drive pulley, 123-Driven pulley, 124-Transmission belt, 125-Second servo motor, 13-Second transmission section, 14-Avoidance zone, 2-Scraping mechanism, 21-First frame, 22-Scraper assembly, 220-Slide, 221-Back plate, 222-Lifting cylinder, 223-Fixed plate, 224-Scraper, 225-Rod head block, 226-Rear plate, 227-Front plate, 228-Hand screw, 229-Protection sensor, 23-Scraper drive mechanism, 231-First synchronous pulley, 232-Second synchronous pulley, 233-Synchronous belt, 234-First servo motor, 235-Guide rail, 236-Slider, 24-Waste trough, 3-Brick blank centering structure. Detailed Implementation

[0023] This utility model provides a continuous edge scraping machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0024] Please see Figures 1 to 4 This utility model provides a continuous scraping machine, including a brick blank conveying line 1 and a scraping mechanism 2 disposed in the middle of the brick blank conveying line 1. The brick blank conveying line 1 is used to transport the brick blank forward. The scraping mechanism 2 includes a first frame 21, a scraper assembly 22 disposed on the top of the first frame 21, and a scraper drive mechanism 23 for driving the scraper assembly 22 to move left and right reciprocally. Under horizontal projection, the movement path of the scraper assembly 22 intersects the movement path of the brick blank at an acute angle α. The scraper assembly 22 is used to scrape the front end face of the brick blank.

[0025] When the continuous scraping machine is running, after the brick blank conveyor line 1 is turned on, it continuously and stably conveys the glazed brick blank forward and through the scraping mechanism 2. In the actual scraping operation, the scraper drive mechanism 23 drives the scraper assembly 22 to move from left to right to achieve oblique scraping, and after completing the scraping, it returns to the original path to achieve reset.

[0026] The continuous scraping machine is equipped with a speed detection and control system that monitors the running speed of the brick conveyor line 1 in real time. The scraper drive mechanism 23 receives the signal from the control system and quickly and accurately calculates and controls the scraping speed of the scraper assembly 22 based on the brick conveying speed, ensuring dynamic adaptation between the two. When the brick moves below the scraping mechanism 2 on the conveyor line, the moving scraper assembly 22 cuts in along a predetermined oblique path, scraping the front face of the brick while it is still in motion.

[0027] During the scraping process, the movement of the brick blank is synchronized with the scraping action of the scraper assembly 22. The brick blank transmission line 1 does not need to be paused, ensuring that the scraping operation is continuous and coherent. This effectively realizes continuous scraping of the brick blank and successfully solves the drawbacks of the intermittent operation of traditional scraping machines.

[0028] This invention provides a continuous scraping machine that overcomes the limitations of traditional scraping machines. It cleverly tilts the scraping mechanism 2 and dynamically adjusts the brick conveying and scraping speeds, enabling simultaneous scraping operations without stopping the brick conveyor line 1. This eliminates time losses caused by frequent start-stop cycles of the conveyor line. The number of bricks processed per hour is significantly increased, production cycles are considerably shortened, and enterprises can greatly improve their production capacity, achieve high-efficiency production, and create greater economic benefits.

[0029] Specifically, the scraper drive mechanism 23 includes a first synchronous pulley 231 rotatably mounted on one end of the crossbeam of the first frame 21, a second synchronous pulley 232 rotatably mounted on the other end of the crossbeam of the first frame 21, a synchronous belt 233 wound around the first synchronous pulley 231 and the second synchronous pulley 232, and a first servo motor 234 drivenly connected to the first synchronous pulley 231. The scraper assembly 22 is fixedly connected to the synchronous belt 233. The transmission system composed of the first synchronous pulley 231, the second synchronous pulley 232, and the synchronous belt 233 has minimal slippage during operation, ensuring accurate positioning of the scraper assembly 22 during left and right reciprocating motion, with deviations controlled within a very small range. Taking the production of ceramic tiles as an example, the scraping edge positioning accuracy can be controlled within ±0.5mm, allowing the scraper 224 to accurately apply force to the front end face of the tile blank, resulting in a uniform scraping depth and avoiding scraping edge defects caused by inaccurate positioning, thus significantly reducing the defect rate caused by scraping edge problems.

[0030] In addition, the synchronous belt 233 transmission has buffering and shock absorption characteristics. Driven by the first servo motor 234, the scraper assembly 22 runs smoothly, avoiding uneven scraping caused by vibration. When the scraping machine processes large brick blanks, stable scraping operation can ensure that the scraping quality of each brick blank is consistent, ensuring the stability of product quality.

[0031] Understandably, the first servo motor 234 has a wide speed range, fast response speed, and precise speed adjustment. When the brick blank transmission speed on the production line changes due to process adjustments, the first servo motor 234 quickly changes its speed, driving the scraper assembly 22 to adjust the scraping speed in a timely manner, always dynamically matching the brick blank transmission speed, and maintaining the efficient scraping operation.

[0032] Specifically, the scraper assembly 22 includes a slide 220 fixedly connected to the timing belt 233, a back plate 221 mounted on the slide 220, a lifting cylinder 222 vertically mounted on the back plate 221, a fixed plate 223 mounted on the output end of the lifting cylinder 222, and a scraper 224 mounted at the bottom of the fixed plate 223. The lifting cylinder 222 enables rapid lifting and lowering of the scraper 224. When the brick blank is transferred to the scraping station, the lifting cylinder 222 quickly pushes the scraper 224 down to scrape the front edge of the brick blank in a timely manner. After the scraping operation is completed, the lifting cylinder 222 can quickly raise the scraper 224 back to its original position, avoiding contact between the scraper 224 and the brick blank in the non-scraping area, preventing product defects caused by accidental scraping, and ensuring the accuracy of the scraping operation.

[0033] Two or more scrapers 224 can be placed on the bottom of the fixed plate 223 so that when a scraping action is performed, two or more scrapers 224 can scrape the edge of the brick blank, thereby improving the scraping and glazing effect.

[0034] Furthermore, the crossbeam of the first frame 21 is provided with a laterally extending guide rail 235, and the back of the slide block 220 is provided with a slider 236 that is slidably connected to the guide rail 235. The guide rail 235 and the slider 236 on the back of the back plate 221 cooperate with each other to provide precise guidance for the reciprocating motion of the scraper assembly 22. When the synchronous belt 233 drives the scraper assembly 22 to move, the slider 236 slides smoothly along the guide rail 235, effectively limiting the deviation of the scraper assembly 22 during the movement, ensuring that the scraper 224 always scrapes the front edge of the brick blank along the preset trajectory. In addition, the cooperation of the guide rail 235 and the slider 236 can absorb and buffer the vibration generated by the scraper assembly 22 during the movement, so that the scraper 224 remains stable when scraping the edge. When processing brick blanks transported at high speed, it effectively avoids uneven scraping caused by vibration, ensures the stability of scraping quality, and is especially suitable for the production of high-end brick blanks with extremely high requirements for scraping precision.

[0035] Preferably, the lifting cylinder 222 is a double-rod cylinder and is provided with a rod head block 225. Compared with the single-rod lifting cylinder 222, the double-rod cylinder can provide a more balanced driving force when driving the scraper assembly 22 to move up and down, avoiding the scraper 224 from tilting due to uneven force, thereby ensuring that the scraper 224 makes full and uniform contact with the brick surface.

[0036] Furthermore, a rear plate 226 is provided on the front end face of the rod head block 225, and a front plate 227 is provided on the top of the fixed plate 223 in front of the rear plate 226. A through hole extending from front to back is provided on the front plate 227, and a threaded hole corresponding to the through hole is provided on the rear plate 226. A hand-tightening screw 228 passes through the through hole and connects to the threaded hole. The operator can fine-tune the position of the scraper 224 by tightening the hand-tightening screw 228 according to the actual situation of the brick blank, to ensure that the scraper 224 accurately acts on the front end face of the brick blank.

[0037] Specifically, the brick blank conveying line 1 includes a second frame 11, and a first conveying section 12 and a second conveying section 13 disposed on the second frame 11. The second conveying section 13 is located downstream of the first conveying section 12. The first conveying section 12 and the second conveying section 13 are independent of each other, and a clearance zone 14 is formed between them for the scraper 224 of the scraper assembly 22 to descend and scrape the edge. The design of the clearance zone 14 provides sufficient space for the scraper 224 to descend, allowing the scraper 224 to completely scrape the front edge of the brick blank, ensuring that it can descend to the bottom edge of the brick, thoroughly scraping away any glaze residue on the bottom of the brick, greatly improving the flatness and smoothness of the product surface, reducing the defect rate, and meeting the market demand for high-quality ceramic tiles.

[0038] Specifically, the first transmission section 12 includes a drive shaft 121 rotatably mounted on the second frame 11, multiple drive pulleys 122 spaced apart on the drive shaft 121, a number of driven pulleys 123 corresponding to the drive pulleys 122, multiple transmission belts 124 wound around the drive pulleys 122 and their corresponding driven pulleys 123, and a second servo motor 125 driven and connected to the drive shaft 121. The second servo motor 125 drives the drive shaft 121 to rotate, thereby causing the multiple drive pulleys 122 to rotate synchronously. Each drive pulley 122 drives its corresponding driven pulley 123 to rotate via the transmission belts 124. The multiple transmission belts 124 operate synchronously, forming a stable transmission plane and propelling the brick blank forward.

[0039] With the help of the control system, the second servo motor 125 and the first servo motor 234 of the scraper drive mechanism 23 are connected and driven together. The second servo motor 125 feeds back the running speed signal of the brick conveyor line 1 to the control system in real time. The control system, through precise program calculation, synchronously adjusts the speed of the two servo motors according to the requirements of the oblique trajectory. When the brick conveying speed changes due to changes in production process or brick specifications, the scraping speed can respond immediately and adjust synchronously, ensuring that the scraper 224 always scrapes the brick edge at the optimal speed and angle, greatly improving the scraping quality and efficiency.

[0040] It is understandable that the first transmission segment 12 and the second transmission segment 13 have basically the same structure, and the structure and working principle of the second transmission segment 13 will not be described in detail here.

[0041] In this embodiment, the brick blank conveyor line 1 is further provided with a brick blank centering structure 3 located upstream of the scraping mechanism 2. The brick blank centering structure 3 can precisely adjust the brick blank to the center position of the scraping mechanism 2, ensuring that each brick blank is in a consistent position when entering the scraping station. Even if the brick blanks have various specifications, the scraper 224 can accurately act on the front end face of the brick blank, avoiding incomplete or excessive scraping caused by brick blank position deviation. Taking large-format ceramic tiles as an example, after precise centering, the scraping position deviation can be controlled within a very small range, greatly improving scraping accuracy, reducing the defect rate, and stabilizing product quality.

[0042] The brick blank centering structure 3 can specifically be two sets of push plate assemblies arranged symmetrically to each other. Each set of push plate assemblies includes a push cylinder, a push plate connected to the output end of the push cylinder, and a push wheel set on the push plate.

[0043] Preferably, the scraper assembly 22 includes a protective sensor 229 (such as a reflective infrared sensor) for detecting whether the scraper 224 has entered the brick blank. The protective sensor 229 can monitor the relative position of the scraper 224 and the brick blank in real time. Once it detects that the scraper 224 has abnormally entered the brick blank, it will immediately send a signal. After receiving the signal, the control system quickly controls the lifting cylinder 222 to raise the scraper 224, avoiding a hard collision between the scraper 224 and the brick blank. This effectively protects the scraper 224 and the brick blank, preventing equipment damage due to collision, reducing maintenance costs, and avoiding safety accidents caused by equipment failure, creating a safe working environment for operators.

[0044] It should be noted that the acute angle α formed by the inclined intersection of the moving path of the scraper assembly 22 and the moving path of the brick blank is 30° to 60°. When the angle of intersection between the scraper assembly 22 and the moving path of the brick blank is between 30° and 60°, the scraping speed is effectively controlled. Compared to smaller angles, this angle range avoids the problems of unstable equipment operation due to excessively high scraping trajectory speed requirements, and decreased scraping quality due to excessive speed. At the same time, compared to larger angles, it avoids the disadvantage of excessively slow scraping speed, which leads to reduced production efficiency. Therefore, in this embodiment, the angle formed by the inclined intersection of the moving path of the scraper assembly 22 and the moving path of the brick blank is 60°, which allows the scraping machine to operate stably, ensuring that the scraping time of each brick blank is maintained within a reasonable range, thereby improving overall production efficiency.

[0045] The first frame 21 is also provided with a waste trough 24 located in the scraper drive mechanism 23. The waste generated by the scraping operation will fall directly into the waste trough 24 on the first frame 21, effectively preventing the waste from scattering everywhere and reducing the difficulty of cleaning.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A continuous edge scraping machine, characterized in that, The system includes a brick blank transport line and a scraping mechanism located in the middle of the brick blank transport line. The brick blank transport line is used to transport the brick blanks forward. The scraping mechanism includes a first frame, a scraper assembly located on the top of the first frame, and a scraper drive mechanism for driving the scraper assembly to move back and forth. Under horizontal projection, the movement path of the scraper assembly intersects the movement path of the brick blank at an acute angle. The scraper assembly is used to scrape the front end face of the brick blank.

2. The continuous edge scraping machine according to claim 1, characterized in that, The scraper drive mechanism includes a first synchronous pulley rotatably mounted on one end of the crossbeam of the first frame, a second synchronous pulley rotatably mounted on the other end of the crossbeam of the first frame, a synchronous belt wound around the first and second synchronous pulleys, and a first servo motor drivenly connected to the first synchronous pulley. The scraper assembly is fixedly connected to the synchronous belt.

3. The continuous edge scraping machine according to claim 2, characterized in that, The scraper assembly includes a slide fixed to the timing belt, a back plate disposed on the slide, a lifting cylinder disposed vertically on the back plate, a fixed plate disposed on the output end of the lifting cylinder, and a scraper disposed at the bottom of the fixed plate.

4. The continuous edge scraping machine according to claim 3, characterized in that, The first frame has a transversely extending guide rail on its crossbeam, and the slide block has a slider on its back that is slidably connected to the guide rail.

5. The continuous edge scraping machine according to claim 3, characterized in that, The lifting cylinder is a double-rod cylinder and is equipped with a rod head block. A rear plate is provided on the front end face of the rod head block. A front plate is provided on the top of the fixed plate in front of the rear plate. A through hole extending from front to back is provided on the front plate. A threaded hole corresponding to the through hole is provided on the rear plate. The hand-tightening screw passes through the through hole and connects to the threaded hole in sequence.

6. The continuous edge scraping machine according to claim 3, characterized in that, The brick blank transmission line includes a second frame, and a first transmission section and a second transmission section disposed on the second frame. The second transmission section is located downstream of the first transmission section. The first transmission section and the second transmission section are independent of each other and form a clearance zone between them for the scraper assembly to descend and scrape the edge.

7. The continuous edge scraping machine according to claim 6, characterized in that, The first transmission section includes a drive shaft rotatably mounted on a second frame, a plurality of drive pulleys spaced apart on the drive shaft, a number of driven pulleys that are the same as and correspond one-to-one with the drive pulleys, a plurality of transmission belts wound around the drive pulleys and the corresponding driven pulleys, and a second servo motor driven and connected to the drive shaft.

8. The continuous edge scraping machine according to claim 1, characterized in that, The brick blank transmission line is equipped with a brick blank centering structure located upstream of the scraping mechanism.

9. The continuous edge scraping machine according to claim 3, characterized in that, The scraper assembly includes a protective sensor for detecting whether the scraper has entered the brick blank.

10. The continuous edge scraping machine according to any one of claims 1-9, characterized in that, The moving path of the scraper assembly intersects with the moving path of the brick blank at an acute angle of 30° to 60°.

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