A multi-position synchronous skiving device for PEEK sheet prepreg and method of use thereof

Abstract

The application discloses a multi-position synchronous scraping device for PEEK plate prepreg, and belongs to the technical field of plate processing. The device comprises a workbench, a driving assembly arranged above the workbench, a scraping mechanism arranged on one side of the driving assembly, a plate processing table arranged below the scraping mechanism, and a plate storage table arranged on one side of the plate processing table. The scraping mechanism comprises an extrusion piece, a positioning piece arranged below the extrusion piece, and a plurality of scraping pieces arranged outside the positioning piece. The multi-position synchronous scraping device for PEEK plate prepreg realizes circular step-by-step scraping through a plurality of scrapers, has high synchronism and good stability, guarantees scraping quality and saves materials at the same time. Meanwhile, the device realizes continuous and rapid production process through automatic operation, guarantees product consistency, reduces labor cost, and thus improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate processing, in particular to a multi-position synchronous scraping device for PEEK plate prepreg and a using method thereof. BACKGROUND

[0002] Polyether ether ketone (PEEK) is a high-performance engineering plastic with excellent mechanical properties and chemical stability, widely used in aerospace, medical devices, automobiles and electronics industries. With the continuous progress of industrial technology, the demand for PEEK materials is increasing year by year, especially in the manufacturing of composite materials, the use of prepreg is becoming more and more common. Prepreg refers to a composite material that pre-impregnates resin on fiber material, with good formability and mechanical properties. In the production process of PEEK plate, uniform coating and appropriate thickness control of prepreg are crucial to the performance of the final product. Traditional scraping devices usually use single-position scraping method, which can cause uneven thickness, material waste, low production efficiency and other problems during scraping. In addition, single-position scraping devices have high technical requirements for operators, which can easily cause operation errors and further affect product quality.

[0003] In recent years, with the continuous expansion of the application range of composite materials, multi-position synchronous scraping devices have gradually become an effective solution. This device can achieve uniform scraping of PEEK plate surface material through multiple scrapers working simultaneously, reducing the technical requirements for operators and improving production efficiency. Multi-position synchronous scraping can also effectively reduce material waste and reduce production costs. However, the existing multi-position scraping devices on the market still have some shortcomings. For example, the synchronization and stability of the scraper are insufficient, resulting in unsatisfactory scraping effect; the device structure is complex, the maintenance cost is high; and the adaptability to different thickness and viscosity of prepreg is poor. Therefore, a new type of multi-position synchronous scraping device is needed to improve production efficiency while ensuring scraping quality and meet the growing production demand of PEEK plate prepreg. SUMMARY

[0004] The purpose of the present application is to provide a multi-position synchronous scraping device for PEEK plate prepreg. PEEK, the raw material of PEEK plate prepreg, is an extremely expensive material. The existing traditional scraping device causes uneven thickness and material waste due to single-blade scraping, which easily produces waste and causes huge economic losses.

[0005] To address the aforementioned technical problems, the present invention provides a multi-position synchronous scraping device for PEEK sheet prepreg, comprising a worktable, a drive assembly disposed above the worktable, a scraping mechanism disposed on one side of the drive assembly, a sheet processing table disposed below the scraping mechanism, and a sheet storage table disposed on one side of the sheet processing table; the scraping mechanism includes an extrusion member, a positioning member disposed below the extrusion member, and a plurality of scraping members disposed outside the positioning member.

[0006] Preferably, the drive assembly includes a hydraulic rod disposed on its top, a swing arm disposed on one side of the hydraulic rod, and a drive motor disposed above one end of the swing arm; the hydraulic rod can pull the swing arm to move up and down, and the swing arm can be pulled by a servo motor to swing in an arc from 0 to 90 degrees around the center of the hydraulic rod.

[0007] Preferably, the drive motor and the extrusion member are fixedly connected via a drive rod. Preferably, the extrusion member and the positioning member are connected via pins and multiple tension springs, allowing the positioning member to slide up and down within the extrusion member.

[0008] Preferably, the extrusion member includes a pin hole that penetrates its interior, and a positioning cavity is formed at the end of the extrusion member away from the pin hole. A plurality of first spring holes are formed at the deepest part of the bottom of the positioning cavity. The outer ring of the annular bottom of the extrusion member is provided with a smooth first inclined surface, and the horizontal included angle of the first inclined surface is in the range of 45 to 54 degrees.

[0009] Preferably, the positioning member includes a pin groove disposed thereon, a second spring hole opposite to the first spring hole, a positioning post disposed at the bottom of the positioning member, and multiple pairs of connecting ears fixedly connected to the outer ring of the positioning member.

[0010] Preferably, the scraper includes a hinge hole, a tool groove disposed within the scraper, and a scraper installed within the tool groove; the connecting lug is hinged to the hinge hole, allowing the scraper to rotate around the hinge hole.

[0011] Preferably, the top of the scraper is a smooth second slope, and the bottom of the scraper is provided with a "J"-shaped barb.

[0012] Preferably, the bottom part of the positioning member that contacts the workpiece is a rotatable disc, and the positioning member and the scraping member are also elastically connected by a traction spring; the traction spring is a damping spring with slow rebound characteristics.

[0013] The present invention also provides a method of using a multi-position synchronous scraping device for PEEK sheet prepreg, comprising the following steps:

[0014] Step (A): The board to be processed is transported to the top of the board processing table by manual labor or conveyor belt;

[0015] Step (B): Start this synchronous scraping device. At this time, the hydraulic rod drives the swing arm to rise smoothly to the highest position, and the swing arm rotates to the workpiece position, that is, the scraping mechanism is suspended directly above the plate processing table.

[0016] Step (C): Start the drive motor. At this time, the drive motor drives the extrusion part through the drive rod. The extrusion part drives the positioning part through the pin. The positioning part drives multiple scraping parts on its outer side. The entire scraping mechanism rotates synchronously.

[0017] Step (D): The hydraulic rod drives the swing arm to descend synchronously. During the descent, the positioning column is positioned at the center through hole of the plate to be processed, and the workpiece is continuously adjusted to the center position. After the positioning part contacts the surface of the workpiece, the workpiece is fixed. The extrusion part will squeeze the positioning part within the pin groove range through the tension spring. During the extrusion, due to the contact between the first and second inclined surfaces, the scraper will rotate around the hinge hole. At this time, the scrapers on the surrounding scrapers will synchronously move inward (outer side of the workpiece). As the extrusion part continues to press down, the outer ring of the workpiece will be continuously scraped.

[0018] Step (E): After the workpiece is processed, the drive motor stops, the hydraulic rod pauses briefly, and then slowly rises. During the rise, the traction spring on the scraper does not fully extend to detach the workpiece, but instead moves the workpiece upwards. Then, the swing arm rotates to the other direction, suspending the scraping mechanism directly above the plate storage table. The hydraulic rod then descends. Once the traction spring has fully returned to its original position, the workpiece falls into the plate storage table for loading. After completion, steps A to E are repeated to automate the scraping process of the device.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The raw material for PEEK prepreg, polyetheretherketone, is an extremely expensive material. Traditional single-position scraping methods are prone to uneven thickness and material waste during the scraping process, resulting in huge economic losses. Our scraping device uses multiple scrapers to perform circumferential step scraping, which has high synchronization and good stability, ensuring scraping quality while saving materials, reducing costs, and achieving high production efficiency and good economic benefits.

[0021] 2. The device of the present invention is an integrated fully automatic operation, which realizes a continuous and rapid production process through automated operation, ensures product consistency, reduces labor costs, and thus improves production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a multi-position synchronous scraping device for PEEK sheet prepreg provided by the present invention;

[0023] Figure 2 This is a front view of a multi-position synchronous scraping device for PEEK sheet prepreg provided by the present invention;

[0024] Figure 3 This is a top view of a multi-position synchronous scraping device for PEEK sheet prepreg provided by the present invention;

[0025] Figure 4 This invention provides a multi-position synchronous scraping device for PEEK sheet prepreg. Figure 3 Half-section view at point AA;

[0026] Figure 5 This invention provides a multi-position synchronous scraping device for PEEK sheet prepreg. Figure 4 A magnified view of a section at point C;

[0027] In the diagram: 1. Workbench; 2. Drive assembly; 201. Hydraulic rod; 202. Swing arm; 203. Drive motor; 3. Scraping mechanism; 301. Extrusion part; 301a. Pin hole; 301b. Positioning cavity; 301c. First spring hole; 301d. First inclined surface; 302. Positioning part; 302a. Pin groove; 302b. Second spring hole; 302c. Positioning post; 302d. Connecting ear; 303. Scraper; 303a. Hinge hole; 303b. Tool groove; 303c. Scraper; 303d. Second inclined surface; 303e. Barb; 4. Sheet metal processing table; 5. Sheet metal storage table; 6. Drive rod; 7. Pin; 8. Tension spring; 9. Traction spring. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not 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 the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Example 1

[0032] This invention provides a multi-position synchronous scraping device for PEEK sheet prepreg. Please refer to [link / reference]. Figures 1-5The system includes a workbench 1, a drive assembly 2 disposed above the workbench 1, a scraping mechanism 3 disposed on one side of the drive assembly 2, a sheet metal processing table 4 disposed below the scraping mechanism 3, and a sheet metal storage table 5 disposed on one side of the sheet metal processing table 4. The drive assembly 2 includes a hydraulic rod 201 disposed on its top, a swing arm 202 disposed on one side of the hydraulic rod 201, and a drive motor 203 disposed above one end of the swing arm 202. The hydraulic rod can pull the swing arm to move up and down, and the swing arm can be pulled by a servo motor to swing in an arc from 0 to 90 degrees around the center of the hydraulic rod. The scraping mechanism 3 includes an extrusion member 301, a positioning member 302 disposed below the extrusion member 301, and a plurality of scraping members 303 disposed outside the positioning member 302. The drive motor 203 is fixedly connected to the extrusion member 301 via a drive rod 6. The extrusion member 301 and the positioning member 302 are connected via a pin 7 and a plurality of tension springs 8, allowing the positioning member 302 to slide up and down within a certain range within the extrusion member 301. The extrusion member 301 includes a pin hole 301a penetrating its interior, and a positioning cavity 301b is formed at the end of the extrusion member 301 away from the pin hole 301a. The positioning cavity 301b has multiple first spring holes 301c at its deepest point; the outer ring of the annular bottom of the extrusion member 301 has a smooth first inclined surface 301d, the horizontal included angle of the first inclined surface 301d ranging from 45 to 54 degrees; the positioning member 302 includes a pin groove 302a disposed above it, a second spring hole 302b opposite to the first spring hole 301c, a positioning post 302c disposed at the bottom of the positioning member 302, and multiple pairs of connecting ears 302d fixedly connected to the outer ring of the positioning member 302; the scraper 303 includes a hinge hole 303a, and a mounting hole 301c disposed on the scraper 301b. The tool groove 303b is located within the tool groove 303b, and the scraper 303c is installed within the tool groove 303b; the connecting lug 302d is hinged to the hinge hole 303a, allowing the scraper 303 to rotate within a small range around the hinge hole 303a; the top of the scraper 303 is a smooth second inclined surface 303d, and the bottom of the scraper 303 is provided with a "J"-shaped barb 303e; the bottom of the positioning member 302, which contacts the workpiece, is a rotatable disc, and the positioning member 302 and the scraper 303 are also elastically connected by a traction spring 9; the traction spring 9 is a damping spring with slow rebound characteristics.

[0033] It should be noted that the hydraulic rod 201, the sheet metal processing table 4, and the sheet metal storage table 5 are all installed above the workbench. The three can form an equilateral triangle when their centers are connected, with the hydraulic rod 201 at the vertex. The hydraulic rod 201 can be raised, lowered, and rotated around its axis by a hydraulic mechanism. The swing arm 202 is fixedly installed on the hydraulic rod 201. When the hydraulic rod 201 is raised or lowered, it will drive the swing arm to rise or fall synchronously. At the same time, a servo motor is installed at the rod end of the hydraulic rod 201. The swing arm 202 is fixed at the shaft end of the servo motor. When the servo motor is started, it can pull the swing arm to swing in an arc from 0 to 90 degrees around the center of the hydraulic rod. This angle can be adjusted according to the size of the workbench. In this embodiment, the workbench is a fan shape slightly larger than 90 degrees, so the angle is limited to 0 to 90 degrees.

[0034] Preferably, the transmission process of the scraping mechanism 3 is as follows: drive motor 203 → drive rod 6 → extrusion part 301 → pin 7 → positioning part 302 → connecting ear 302d → scraping part 303 → scraper 303c, thereby scraping the outer surface of the workpiece.

[0035] Preferably, the pin 7 passes through the pin hole 301b on the outside and is inserted into the pin groove 302a to fix the relative positions of the pressing member 301 and the positioning member 302. The pin groove 302a is a "racetrack" shape. It should be noted that when the hydraulic rod 202 lifts and lowers the pressing member 301, sufficient clearance should be given to the pin groove 302a to prevent the pin 7 from being squeezed between the pin and the pin groove 302a and causing damage to the device.

[0036] Preferably, when the extruder 301 is pressed down, the bottom of the positioning member 302 will continuously press the workpiece and simultaneously adjust the workpiece to the center of the positioning member 302 through the positioning post 302c. The positioning post 302c has a streamlined structure that is thicker at the top and thinner at the bottom to prevent damage to the workpiece. After positioning is completed, the extrusion of the positioning member 302 will fix the workpiece and prevent it from rotating with the scraper 303c. Since the tension spring 8 is fixedly connected between the extruder 301 and the positioning member 302, the continued extrusion of the positioning member 302 will compress the spring and press the positioning member 302 into the positioning cavity 301c.

[0037] Preferably, the bottom outer ring of the extruded part 301 is a smooth first bevel 301d, such as... Figure 5 As shown, the optimal horizontal angle range of this slope is 45 to 54 degrees. Within this angle range, when the extruder 301 presses down, it will more smoothly extrude the second slope 303d on the top of the scraper 303, reducing friction and preventing jamming, thereby driving the scraper 303c to perform step scraping evenly.

[0038] Preferably, when the device is stationary, the tension of the tension spring 8 should be controlled by adjusting the spring length or spring material so that the first inclined surface 301d and the second inclined surface 303d are just stable in a close-fitting state. When in a close-fitting state, the "J"-shaped barb 303e under the scraper 303 should be in an outward-curving state to facilitate the workpiece to enter the cutting range unimpeded.

[0039] Preferably, the scraper 303d is made of a cemented carbide material. This scraper 303d has excellent wear resistance and strength and is suitable for processing high-performance plastics such as PEEK. The scraper 303d is fixed in the tool groove 303b inside the scraper 303 by a threaded connection, which facilitates tool replacement.

[0040] Preferably, the traction spring 9 is a damping spring with slow stretching and slow rebound characteristics. Specifically, the elastic part has a sealed shell containing damping fluid, piston, and other damping materials. This allows the spring to absorb the energy generated during its movement and convert it into heat, facilitating control of the spring's amplitude and slowing down its stretching and rebound speed. In this embodiment, the traction spring 9 takes approximately 8-9 seconds to recover from its compressed state to its original state. The traction spring 9 is fixedly installed between the positioning part 302 and the scraper part 303. Due to its slow rebound characteristic, the scraper part 303 rotates around the hinge hole 303a during cutting. After processing, the "J"-shaped barb 303e is located at the bottom of the workpiece, and the four barbs support the workpiece together. The processed workpiece is transported to the plate storage platform 5 area within 8 seconds before the damping spring fully rebounds. This process can be controlled by programming using an existing piece counter. The piece counter detects the completion of the piece count and repeats the process.

[0041] In summary, the multi-position synchronous scraping device for PEEK sheet prepreg of the present invention performs circumferential step scraping with multiple scrapers, which has high synchronization, good stability, ensures scraping quality while saving materials and has high production efficiency.

[0042] Example 2

[0043] This invention provides a method for using a multi-position synchronous scraping device for PEEK sheet prepreg. Please refer to [link / reference]. Figures 1-5 It includes the following steps:

[0044] Step (A): Transport the board to be processed to the board processing table 4 by manual labor or conveyor belt. It is only necessary to place it in the approximate position.

[0045] Step (B): Start this synchronous scraping device. At this time, the hydraulic rod 201 drives the swing arm 202 to be raised smoothly to the highest position. The swing arm 202 rotates to the workpiece position, that is, the scraping mechanism 3 is suspended directly above the plate processing table 4.

[0046] Step (C): Start the drive motor 203. At this time, the drive motor 203 drives the extrusion part 301 through the drive rod 6. The extrusion part 301 drives the positioning part 302 through the pin 7. The positioning part 302 drives the multiple scraping parts 303 on its outer side. The scraping mechanism 3 rotates synchronously as a whole.

[0047] Step (D): The hydraulic rod 201 drives the swing arm 202 to descend synchronously. During the descent, the positioning column 302c is positioned at the center through hole of the plate to be processed, and the workpiece is continuously adjusted to the center position. After the positioning part 302 contacts the surface of the workpiece, the workpiece is fixed. The extrusion part 301 will extrude the positioning part 302 within the range of the pin groove 302a through the tension spring 8. During the extrusion, due to the contact between the first inclined surface 301d and the second inclined surface 303d, the scraper part 303 will rotate around the hinge hole 303a. At this time, the scraper blades 303c on the surrounding scraper parts 303 will synchronously move inward (outer side of the workpiece) and stick to it. As the extrusion part 301 continues to press down, the outer ring of the workpiece will be continuously scraped and processed.

[0048] Step (E): After the workpiece is processed, the drive motor 203 stops, the hydraulic rod 201 pauses briefly and then rises slowly. During the rise, the scraper 303 is not fully extended by the traction spring 9 to detach the workpiece, but will instead move the workpiece upward. Then the swing arm 202 will rotate to the other direction, so that the scraping mechanism 3 is suspended directly above the plate storage table 5. The hydraulic rod 201 then descends. After the traction spring 9 returns to its full position, the workpiece will fall into the plate storage table for storage and loading. After completion, repeat steps A to E to realize the automation of scraping of the device.

[0049] This method of use enables continuous, rapid, and uninterrupted production of this device, ensuring product consistency, reducing labor costs, and thus improving production efficiency.

[0050] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A multi-position synchronous scraping device for PEEK sheet prepreg, characterized in that, It includes a workbench (1), a drive assembly (2) disposed above the workbench (1), a scraping mechanism (3) disposed on one side of the drive assembly (2), a sheet metal processing table (4) disposed below the scraping mechanism (3), and a sheet metal storage table (5) disposed on one side of the sheet metal processing table (4). The scraping mechanism (3) includes an extruder (301), a positioning member (302) disposed below the extruder (301), and a plurality of scraping members (303) disposed outside the positioning member (302). The extrusion member (301) includes a pin hole (301a) penetrating its interior. A positioning cavity (301b) is formed at the end of the extrusion member (301) away from the pin hole (301a). A plurality of first spring holes (301c) are formed at the deepest part of the bottom of the positioning cavity (301b). A smooth first inclined surface (301d) is provided on the outer ring of the annular bottom of the extrusion member (301). The horizontal included angle of the first inclined surface (301d) ranges from 45 to 54 degrees. The positioning member (302) includes a pin groove (302a) disposed above it, a second spring hole (302b) opposite to the first spring hole (301c), a positioning post (302c) disposed at the bottom of the positioning member (302), and multiple pairs of connecting ears (302d) fixedly connected to the outer ring of the positioning member (302).

2. The multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 1, characterized in that, The drive assembly (2) includes a hydraulic rod (201) disposed on its top, a swing arm (202) disposed on one side of the hydraulic rod (201), and a drive motor (203) disposed above one end of the swing arm (202). The hydraulic rod (201) can pull the swing arm (202) to move up and down. The swing arm (202) can be pulled by a servo motor to swing in an arc from 0 to 90 degrees around the center of the hydraulic rod (201).

3. The multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 2, characterized in that, The drive motor (203) and the extruder (301) are fixedly connected by a drive rod (6).

4. The multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 3, characterized in that, The extrusion member (301) and the positioning member (302) are connected by a pin (7) and a plurality of tension springs (8), so that the positioning member (302) can slide up and down inside the extrusion member (301).

5. A multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 4, characterized in that, The scraper (303) includes a hinge hole (303a), a tool groove (303b) disposed in the scraper (303), and a scraper (303c) installed in the tool groove (303b). The connecting lug (302d) is hinged to the hinge hole (303a), allowing the scraper (303) to rotate about the hinge hole (303a).

6. A multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 5, characterized in that, The top of the scraper (303) is a smooth second inclined surface (303d), and the bottom of the scraper (303) is provided with a "J" shaped barb (303e).

7. A multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 6, characterized in that, The bottom part of the positioning component (302) that contacts the workpiece is a rotatable disc, and the positioning component (302) and the scraping component (303) are also elastically connected by a traction spring (9). The traction spring (9) is a damping spring with slow rebound characteristics.

8. A method of using the multi-position synchronous scraping device for PEEK sheet prepreg as described in claim 7, characterized in that, Includes the following steps: Step (A): The board to be processed is transported to the board processing table (4) by manual labor or by conveyor belt; Step (B): Start this synchronous scraping device. At this time, the hydraulic rod (201) drives the swing arm (202) to rise smoothly to the highest position. The swing arm (202) rotates to the workpiece position, that is, the scraping mechanism (3) is suspended directly above the plate processing table (4). Step (C): Start the drive motor (203). At this time, the drive motor (203) drives the extruder (301) through the drive rod (6). The extruder (301) drives the positioning part (302) through the pin (7). The positioning part (302) drives multiple scraping parts (303) on its outer side. The scraping mechanism (3) rotates synchronously as a whole. Step (D): The hydraulic rod (201) drives the swing arm (202) to descend synchronously. When descending, the positioning column (302c) is positioned at the center through hole of the plate being processed, and the workpiece is continuously adjusted to the center position. After the positioning part (302) contacts the surface of the workpiece, the workpiece is fixed. The extrusion part (301) will extrude the positioning part (302) within the range of the pin groove (302a) through the tension spring (8). During extrusion, due to the extrusion contact between the first inclined surface (301d) and the second inclined surface (303d), the scraper (303) will rotate around the hinge hole (303a). At this time, the scraper (303c) on the surrounding scraper (303) will synchronously move inward (outer side of the workpiece). As the extrusion part (301) continues to press down, the outer ring of the workpiece will be continuously scraped. Step (E): After the workpiece is processed, the drive motor (203) stops, the hydraulic rod (201) pauses briefly and then rises slowly. When it rises, the scraper (303) is pulled by the traction spring (9) and does not fully unfold to detach the workpiece. Instead, it will move the workpiece upward. Then the swing arm (202) will rotate to the other direction, so that the scraping mechanism (3) is suspended directly above the plate storage table (5). The hydraulic rod (201) then descends. After the traction spring (9) returns to its original position, the workpiece will fall into the plate storage table for storage and loading. After completion, repeat steps (A) to (E) to realize the automatic scraping of the device.

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