An adaptive board edge trimming device

Abstract

The utility model relates to plate processing equipment technical field, especially in kind of self -adaptation plate edge trimming device, including tool holder, edge trimming cutter, be used for driving the driving device of tool holder rotation and be used for the reset component of edge trimming cutter, tool holder connects in the driving end of driving device, and driving device can drive tool holder rotates around its axle, and edge trimming cutter includes two cutter assemblies that are rotatably installed in the front and back direction in tool holder, and each cutter assembly includes rotatably installed in tool holder rotatory seat and one front scraper and one rear scraper fixed in the left and right sides of rotatory seat respectively, and two front scrapers and two rear scrapers in different cutter assemblies are respectively arranged in central symmetry relative to the rotation axis of tool holder, and reset component is equipped on rotatory seat, the deflection of front scraper and rear scraper on the same side of tool holder occurs and compresses tightly plate edge, and the common constitution of V type cutter head in the front and back direction orthographic projection constitutes V type cutter head, and the front scraper and rear scraper reset after edge trimming reset component.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to an adaptive sheet metal trimming device. Background Technology

[0002] In modern panel product manufacturing, the edges of panels are relatively sharp and prone to burrs after cutting. In order to reduce the risk of injury during product handling and use, enhance the smoothness and aesthetics of the product edges, and improve product quality, it is necessary to trim the edges of the panels.

[0003] In existing technologies, such as the scraping device for sheet metal processing disclosed in Chinese Patent Publication No. CN223114298U, the scraping angle is changed by adjusting the blade holder according to actual product needs, and then the device is manually pulled to trim the edge of the sheet metal. For sheets of different thicknesses, this device needs to continuously adjust the tilt angle of the scraper. Another example is the scraper device for a sheet metal edge banding machine with automatic blade adjustment disclosed in Chinese Patent Publication No. CN118514175A. The scraper mechanism of this device is fixed, and it is equipped with vertical and horizontal baffle components to adjust the position of the sheet metal relative to the scraper, thereby trimming individual edges of the sheet metal. This device has a complex structure and low trimming efficiency. In the above-mentioned existing technologies, the scraper is not movable relative to the blade holder during the trimming process. When the cutting speed is increased, the increased cutting resistance can easily cause the tool to chatter, resulting in tool damage, burr residue and other problems, which are not conducive to improving product quality and production efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an adaptive sheet metal trimming device to solve the problems existing in the prior art.

[0005] An adaptive sheet metal trimming device includes a tool holder, a trimming tool, a drive device for driving the tool holder to rotate, and a reset assembly for returning the trimming tool to its center. The tool holder is connected to the drive end of the drive device, which drives the tool holder to rotate about its axis. The trimming tool includes two tool assemblies, each including a rotating base rotatably mounted on the tool holder, and a front scraper and a rear scraper respectively fixed to the left and right sides of the rotating base. The two tool assemblies are arranged on the tool holder in a front-to-back direction, wherein the front scrapers and rear scrapers of the two tool assemblies are arranged oppositely in the left-to-right direction, such that the two front scrapers are aligned... The rotation axis of the blade holder is centrally symmetrically arranged, and the two rear scrapers are centrally symmetrically arranged relative to the rotation axis of the blade holder, such that a front scraper and a rear scraper are arranged on both the left and right sides of the blade holder; the reset assembly is disposed on the rotating seat. When the front scraper and the rear scraper located on the same side contact the edge of the plate, the two rotating seats deflect under the pressure of the plate. The reset assembly provides a reaction force to the rotating seats, so that the front scraper and the rear scraper press against the edge of the plate. The front scraper and the rear scraper form a V-shaped blade head in the front-back direction, which trims the two edges on one side of the plate. After trimming, the reset assembly returns to the center position.

[0006] Specifically, there are two reset components, which are respectively disposed on the two rotating seats. Each reset component includes a fixed shaft and a torsion spring. The fixed shaft is vertically fixed to the tool holder. The rotating seat is sleeved on the fixed shaft and has a positioning post. The body of the torsion spring is sleeved on the fixed shaft, and the two torsion arms of the torsion spring are respectively fixed on the fixed shaft and the positioning post.

[0007] Specifically, the rotating base has a first connecting block and a second connecting block on both sides in the left-right direction. The front scraper is fixed to the rotating base through the first connecting block, and the rear scraper is fixed to the rotating base through the second connecting block.

[0008] Specifically, the front scraper is a right-angled trapezoid, the hypotenuse of the front scraper is the blade, and the longer right-angled side of the front scraper is fixed to the rotating base.

[0009] Specifically, the lower end of the front scraper is inclined toward the direction of the rotation axis of the blade holder.

[0010] Specifically, the rear scraper is rectangular, with one long side serving as the blade and the other long side fixed to the rotating base.

[0011] Specifically, the lower end of the rear scraper is inclined toward the direction of the rotation axis of the blade holder.

[0012] Specifically, the driving device is a rotary cylinder, and the circular turntable of the driving device is fixed above the tool holder by screws. The driving device drives the tool holder to rotate around the axis of the circular turntable.

[0013] Specifically, the drive device is provided with a connector above it for connecting to the linear module. The connector has an "L" shape and a reinforcing rib is provided between the two right-angled sides of the connector. The drive device and the linear module are respectively connected to the two right-angled sides of the connector.

[0014] Specifically, a bracket for fixing the brush blade is provided around the blade holder. Multiple mounting holes are provided at both ends of the blade holder in the front-rear direction. The bracket is fixedly connected to the blade holder by screws passing through the mounting holes.

[0015] The beneficial effects of this utility model are: 1. This application automatically adapts to different thicknesses of boards by deflecting the front and rear scrapers. With the help of the reset component, the front and rear scrapers press against the edge of the board and form a V-shaped cutter head by orthographic projection in the front-back direction. This allows for simultaneous chamfering of the upper and lower edges on one side of the board. This achieves the effect of trimming boards of different thicknesses without the need to pre-adjust the trimming angle of the scraping mechanism, greatly improving trimming efficiency. 2. In this application, the front scraper and the rear scraper are movably mounted on the tool holder. The lower ends of the front scraper and the rear scraper located on the same side are inclined towards the rotation axis of the tool holder. This arrangement reduces the stress between the scraper and the sheet metal, making the scraper trimming smoother. It prevents the problem of increased cutting resistance leading to tool damage and burr residue on the edge of the sheet metal when the trimming speed of the device is increased. It is beneficial to extend the service life of the tool, reduce maintenance costs, and improve production efficiency and product quality. 3. The front and rear scrapers located on different sides of the blade holder are centrally symmetrical with respect to the rotation axis of the blade holder. This arrangement allows the present application to perform alternating rotational scraping. The alternating operation of the scrapers on both sides of the blade holder helps to prevent scraper fatigue, improves the durability of the device, and reduces the frequency of scraper replacement. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional schematic diagram of the adaptive sheet metal trimming device of this utility model; Figure 2 This is a front view of the adaptive sheet metal trimming device of this utility model; Figure 3 This is a left view of the adaptive sheet metal trimming device of this utility model; Figure 4This is a top view of the adaptive sheet metal trimming device of this utility model; Figure 5 This is an exploded view of the adaptive sheet metal trimming device of this utility model. The dashed lines in the figure show the installation direction of the components. Figure 6 A three-dimensional schematic diagram of the adaptive sheet metal trimming device of this utility model, including connectors, brackets, and brush blades; Figure 7 This is a front view of the adaptive sheet metal trimming device of this utility model when trimming a sheet metal, showing that the front and rear scrapers deflect under the pressure of the sheet metal and form a V-shaped cutter head in the front-to-back direction. Figure 8 This is a top view of the adaptive sheet metal trimming device of this utility model, in conjunction with a linear module, performing trimming operations on the four sides of a sheet metal. A, B, C, and D are the four fixed points in the trimming process of this embodiment, with A being the starting point. The arrows in the figure indicate the moving direction and path of the tool holder during the trimming process.

[0017] The attached figures are labeled as follows: tool holder 10, trimming tool 20, tool assembly 21, rotating seat 211, first connecting block 2111, second connecting block 2112, positioning post 2113, front scraper 212, rear scraper 213, drive device 30, reset assembly 40, fixed shaft 41, torsion spring 42, plate 50, connector 60, bracket 70, brush blade 80, and linear module 90. Detailed Implementation

[0018] This utility model provides an adaptive sheet metal trimming mechanism. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes the 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 this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0020] Please see Figure 1-8 : This embodiment discloses an adaptive sheet metal trimming device, including a tool holder 10 and a trimming tool 20, a drive device 30 for driving the tool holder 10 to rotate, and a reset assembly 40 for returning the trimming tool 20 to its original position.

[0021] The tool holder 10 is connected to the drive end of the drive device 30, and the drive device 30 drives the tool holder 10 to rotate around its axis.

[0022] The trimming tool 20 includes two tool assemblies 21 respectively disposed on the tool holder 10 in the front-back direction. Each tool assembly 21 includes a rotating base 211, a front scraper 212 and a rear scraper 213. The rotating base 211 is rotatably mounted on the tool holder 10, and the front scraper 212 and the rear scraper 213 are respectively fixed on the left and right sides of the rotating base 211.

[0023] The front scraper 212 and rear scraper 213 of the tool assembly 21 located on the front side of the tool holder 10 are arranged in the opposite direction in the left and right direction to those of the tool assembly 21 located on the rear side. The two front scrapers 212 of the two tool assemblies 21 are arranged in a centrally symmetrical manner with respect to the rotation axis of the tool holder 10, and the two rear scrapers 213 are arranged in a centrally symmetrical manner with respect to the rotation axis of the tool holder 10, so that a front scraper 212 and a rear scraper 213 are arranged on both the left and right sides of the tool holder 10.

[0024] The reset assembly 40 is mounted on the rotating seat 211. When the rotating seat 211 rotates under the pressure of the plate 50, the reset assembly 40 provides a reaction force within an appropriate range so that the front scraper 212 and the rear scraper 213 can press the edges of the plate 50 of different thicknesses to ensure the trimming quality.

[0025] With the combined action of the tool holder 10, the trimming tool 20, and the reset assembly 40, during the trimming process, the device moves along the edge of the sheet 50. The sheet 50 applies pressure to the front scraper 212 and the rear scraper 213 on the left or right side of the tool holder 10. The rotating seat 211 connected to the front scraper 212 and the rear scraper 213 rotates under the force. The reset assembly 40 provides a reaction force to the rotating seat 211, causing the front scraper 212 and the rear scraper 213 to press against the edge of the sheet 50. The front scraper 212 and the rear scraper 213 achieve the function of movable trimming through the rotating seat 211, which greatly reduces the stress between the blade and the sheet 50, making the trimming smoother. This method can also prevent the problem of increased cutting resistance leading to tool damage and residual burrs on the edge of the sheet 50 when the trimming speed of the device is increased. It is beneficial to extend the service life of the tool, reduce maintenance costs, and improve production efficiency and product quality.

[0026] With the combined action of the blade holder 10, the drive unit 30, the two front scrapers 212 and the rear scraper 213 arranged in a centrally symmetrical manner, the drive unit 30 can rotate the blade holder 10 to use the blades on different sides for trimming. The type and arrangement of the blades in contact with the plate 50 are consistent before and after rotation, realizing the function of rotating and alternating scraping. This helps to prevent scraper fatigue, improve durability, and reduce the frequency of scraper replacement.

[0027] Furthermore, the front scraper 212 has an inverted right-angled trapezoidal structure with its hypotenuse serving as the cutting edge; the rear scraper 213 has a rectangular structure with one of its long sides serving as the cutting edge.

[0028] Before trimming the sheet 50 in this embodiment, the cutter holder 10 moves to the outer periphery of the side corner of the sheet 50. The drive device 30 rotates the cutter holder 10, moving the front scraper 212 close to the side of the sheet 50 and making the front scraper 212 perpendicular to the plane of the side. Then, the cutter holder 10 moves along the length of the side, and the front scraper 212 contacts the side of the sheet 50 and deflects. After it deflects to a suitable trimming angle, the cutter holder 10 continues to move to perform the trimming operation. In this operation, the front scraper 212 is used as a feed cutter to pre-contact the sheet 50, collide with it, and deflect to a suitable trimming angle. Due to the right-angled trapezoidal structure of the front scraper 212, its beveled blade, compared to the vertical blade of the rear scraper 213, allows the front scraper 212 to adjust to a suitable trimming angle more quickly, reducing the damage to the cutter and the sheet 50 caused by the collision.

[0029] Furthermore, the lower end of the front scraper 212 is inclined toward the rotation axis of the tool holder 10; the lower end of the rear scraper 213 is inclined toward the rotation axis of the tool holder 10; the front scraper 212 and the rear scraper 213 located on the same side of the tool holder 10 form an inverted V-shape in the left-right direction when projected onto the front scraper 212 and the rear scraper 213. This arrangement allows the front scraper 212 and the rear scraper 213 to form a V-shaped cutting head in the front-back direction when they deflect during the trimming process.

[0030] Based on the shape and arrangement of the front scraper 212 and the rear scraper 213, the trimming process in this embodiment is as follows: The tool holder 10 drives the tool assembly 21 to move along the edge of the plate 50. When the front scraper 212 and the rear scraper 213, located on the same side of the tool holder 10, contact the edge of the plate 50, the pressure of the plate 50 causes the front scraper 212 and the rear scraper 213 to deflect. The two rotating seats 211 are driven to rotate. The reset assembly 40 provides a reaction force to the rotating seats 211, causing the rotating seats 211 to drive the front scraper 212 and the rear scraper 213 to press against the edge of the plate 50. The front scraper 212 and the rear scraper 213 form a V-shaped blade head in the front-back direction. The opening of the V-shaped blade head faces the edge of the plate 50. As the tool holder 10 moves, the front scraper 212 and the rear scraper 213 respectively perform chamfering on the two edges on one side of the plate 50. Finally, the reset assembly 40 returns the rotating seats 211 to the center and reset.

[0031] This application enables automatic adaptation to the needs of trimming different thicknesses of sheet metal 50 without prior adjustment of the trimming angle of the scraping mechanism, and can simultaneously bevel the upper and lower edges on one side of the sheet metal 50, greatly improving trimming efficiency.

[0032] Furthermore, a connector 60 for connecting to the linear module 90 is provided above the drive device 30. The connector 60 has an "L" shaped structure and a reinforcing rib is provided between the two right-angled sides of the connector 60. The drive device 30 and the linear module 90 are respectively connected to the two right-angled sides of the connector 60.

[0033] This embodiment requires the use of a linear module 90: the linear module 90 includes two parallel static linear modules and one dynamic linear module placed on a frame. The plate 50 is placed and fixed between the two static linear modules. One dynamic linear module is perpendicularly connected to the two static linear modules. The dynamic linear module can move along the length of the static linear modules. This device is mounted on the dynamic linear module via a connector 60. This device can move on the dynamic linear module. With the cooperation of the linear module 90, this device moves around the plate 50 to trim the edges.

[0034] In conjunction with the linear module 90, the trimming steps for the sheet metal 50 in this embodiment are as follows: S1. The knife holder 10 is located at the initial position A. The straight module 90 is adjusted so that the front scraper 212 contacts the upper edge of the plate 50 and deflects. After the front scraper 212 is adjusted to a suitable trimming angle, the knife holder 10 moves to position B to perform upper and lower chamfering on the rear side of the plate 50. S2. The knife holder 10 is located at position B. The drive device 30 rotates the knife holder 10 counterclockwise by 90°. The straight module 90 is adjusted so that the front scraper 212 contacts the upper edge of the plate 50 and is adjusted to a suitable trimming angle. Then the knife holder 10 moves to position C to perform upper and lower chamfering on the right side of the plate 50. S3. The knife holder 10 is located at position C. The drive device 30 drives the knife holder 10 to rotate 90° clockwise. The straight module 90 is adjusted so that the front scraper 212 contacts the upper edge of the plate 50 and is adjusted to a suitable trimming angle. Then the knife holder 10 moves to position D to perform upper and lower chamfering on the front side edge of the plate 50. S4. When the knife holder 10 is in position D, the drive device 30 drives the knife holder 10 to rotate 90° counterclockwise. After the front scraper 212 contacts the upper edge of the plate 50 and is adjusted to a suitable trimming angle, the knife holder 10 moves to position A to perform upper and lower chamfering on the left side of the plate 50. S5, with the tool holder 10 in position A, the drive device 30 drives the tool holder 10 to rotate 90° clockwise, returning it to the initial state of S1, thus completing the trimming process of the board 50.

[0035] Furthermore, the left and right sides of the rotating base 211 are respectively provided with a first connecting block 2111 and a second connecting block 2112. The back of the front scraper 212 is fixed to the first connecting block 2111, and the back of the rear scraper 213 is fixed to the second connecting block 2112. The connection points of the first connecting block 2111 and the second connecting block 2112 with the front scraper 212 and the rear scraper 213 are inclined surfaces to meet the requirements of the inclined setting of the front scraper 212 and the rear scraper 213.

[0036] Furthermore, the drive device 30 is a rotary cylinder, and the bottom of the drive device 30 is provided with a circular turntable that can rotate around its own axis. The circular turntable is fixed above the tool holder 10 by screws, and the drive device 30 drives the tool holder 10 to rotate around the axis of the circular turntable.

[0037] Furthermore, in this embodiment, two reset components 40 are provided, respectively mounted on two rotating seats 211. Each reset component 40 includes a fixed shaft 41 and a torsion spring 42. The fixed shaft 41 is vertically fixed to the tool holder 10. The rotating seat 211 is a cubic structure component with a central through hole, and is sleeved onto the fixed shaft 41 through the through hole. A positioning post 2113 is provided at each of the four corners of the top of the rotating seat 211. The body of the torsion spring 42 is sleeved on the fixed shaft 41, and the two torsion arms of the torsion spring 42 are respectively fixed to the upper end of the fixed shaft 41 and a positioning post 2113. During the trimming process... The plate 50 applies pressure to the front scraper 212 and the rear scraper 213, causing the rotating seat 211 to rotate. The torsion arm fixed on the positioning post 2113 rotates with the rotating seat 211 around the axis of the fixed shaft 41, causing the body of the torsion spring 42 to deform. The torsion arm connected to it provides a counterforce to the positioning post 2113 to limit the rotation of the rotating seat 211, so that the front scraper 212 and the rear scraper 213 press against the edge of the plate 50. After the front scraper 212 and the rear scraper 213 leave the edge of the plate 50, the torsion spring 42 releases the elastic potential energy generated by the deformation of its body, causing the rotating seat 211 to rotate back to the center.

[0038] Furthermore, a bracket 70 for fixing the brush blade 80 is provided around the tool holder 10. Multiple mounting holes are provided at both ends of the tool holder 10 in the front-rear direction. The bracket 70 is fixedly connected to the tool holder 10 by screws passing through the mounting holes. Installing the brush blade 80 helps to prevent flying debris generated during the trimming process from entering the device and causing adverse effects.

[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. An adaptive sheet metal trimming device, comprising a tool holder (10) and a trimming tool (20), characterized in that, It also includes a drive device (30) for rotating the tool holder (10) and a reset assembly (40) for returning the trimming tool (20) to center. The tool holder (10) is connected to the driving end of the driving device (30), and the driving device (30) drives the tool holder (10) to rotate around its axis. The trimming tool (20) includes two tool assemblies (21). Each tool assembly (21) includes a rotating seat (211) rotatably mounted on the tool holder (10), and a front scraper (212) and a rear scraper (213) respectively fixed on the left and right sides of the rotating seat (211). The two tool assemblies (21) are respectively arranged on the tool holder (10) in the front-back direction. The front scraper (212) and the rear scraper (213) of the two tool assemblies (21) are arranged oppositely in the left-right direction, so that the two front scrapers (212) are centrally symmetrical with respect to the rotation axis of the tool holder (10), and the two rear scrapers (213) are centrally symmetrical with respect to the rotation axis of the tool holder (10), so that a front scraper (212) and a rear scraper (213) are arranged on the left and right sides of the tool holder (10). The reset component (40) is mounted on the rotating seat (211). When the front scraper (212) and the rear scraper (213) located on the same side contact the edge of the plate (50), the two rotating seats (211) deflect under the pressure of the plate (50). The reset component (40) provides a reaction force to the rotating seat (211), so that the front scraper (212) and the rear scraper (213) press against the edge of the plate (50). The front scraper (212) and the rear scraper (213) form a V-shaped blade head in the front-back direction, which trims the two edges on one side of the plate (50). After trimming, the reset component (40) returns to the center and resets the plate.

2. The adaptive sheet metal trimming device according to claim 1, characterized in that: The reset assembly (40) has two parts, which are respectively disposed on the two rotating seats (211). The reset assembly (40) includes a fixed shaft (41) and a torsion spring (42). The fixed shaft (41) is vertically fixed to the tool holder (10). The rotating seat (211) is sleeved on the fixed shaft (41). The rotating seat (211) is provided with a positioning post (2113). The body of the torsion spring (42) is sleeved on the fixed shaft (41). The two torsion arms of the torsion spring (42) are respectively fixed on the fixed shaft (41) and the positioning post (2113).

3. The adaptive sheet metal trimming device according to claim 2, characterized in that: The rotating base (211) has a first connecting block (2111) and a second connecting block (2112) on both sides in the left and right directions. The front scraper (212) is fixed to the rotating base (211) through the first connecting block (2111), and the rear scraper (213) is fixed to the rotating base (211) through the second connecting block (2112).

4. The adaptive sheet metal trimming device according to claim 2, characterized in that: The front scraper (212) is a right-angled trapezoid, the hypotenuse of the front scraper (212) is the blade, and the longer right-angled side of the front scraper (212) is fixed to the rotating seat (211).

5. The adaptive sheet metal trimming device according to claim 4, characterized in that: The lower end of the front scraper (212) is inclined toward the direction of the rotation axis of the blade holder (10).

6. The adaptive sheet metal trimming device according to claim 4, characterized in that: The rear scraper (213) is rectangular, with one of its long sides being the blade and the other long side fixed to the rotating seat (211).

7. The adaptive sheet metal trimming device according to claim 6, characterized in that: The lower end of the rear scraper (213) is inclined toward the rotation axis of the blade holder (10).

8. The adaptive sheet metal trimming device according to claim 1, characterized in that: The driving device (30) is a rotary cylinder. The circular turntable of the driving device (30) is fixed above the tool holder (10) by screws. The driving device (30) drives the tool holder (10) to rotate around the axis of the circular turntable.

9. The adaptive sheet metal trimming device according to claim 1, characterized in that: The drive device (30) is provided with a connector (60) for connecting to the linear module (90) above it. The connector (60) has an "L" shaped structure and a reinforcing rib is provided between the two right-angled sides of the connector (60). The drive device (30) and the linear module (90) are respectively connected to the two right-angled sides of the connector (60).

10. The adaptive sheet metal trimming device according to claim 1, characterized in that: A bracket (70) for fixing the brush blade (80) is provided around the blade holder (10). Multiple mounting holes are provided at both ends of the blade holder (10) in the front-rear direction. The bracket (70) is fixedly connected to the blade holder (10) by screws passing through the mounting holes.

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