A bending device of a wood board bending apparatus

Abstract

The utility model provides a kind of bending device of wood board bending equipment, belong to plate production technical field.It solves the technical problems such as existing bending machine cannot bend the board of larger length, the effect is not good after bending for the board of larger length etc..Two bending supports in the bending device of the wood board bending equipment are set apart along wood board conveying direction, arc-shaped bending tooth disc is set on each bending support, both sides of bending tooth disc are provided with protruding teeth, driving gear is set on the outside of bending tooth disc, driven gear is set in the inside, driving gear and driven gear can be rotatably fixed on mounting plate, driving gear is connected with bending driving part on mounting plate, connecting plate is set between two bending supports, both ends of connecting plate are fixedly connected with mounting plate, and board can be rotated with connecting plate.The utility model has the advantages that larger length board can be processed, and bending effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of board production technology, and specifically refers to a bending device for a board bending equipment. Background Technology

[0002] A wood board bending machine is a device used to bend and shape wood boards. It is a key piece of equipment for achieving complex curved surface shapes. For example, the utility model patent with application number 201621160467.3 discloses a bending and forming machine. Its base is arranged from front to back as follows: a grooving mechanism, a first gluing mechanism, a feeding mechanism, and a forming mechanism. The forming mechanism includes a side wheel and a pressure wheel that limit the board material, and a stop wheel that bends the board material. The direction of the stop wheel gradually transitions from upward to towards the side wheel along the board material transmission direction.

[0003] Although the bending mechanism in the aforementioned bending forming machine can bend the sheet metal, it is only suitable for sheets with shorter lengths because it is achieved by the combined action of multiple guide rollers. If the sheet metal is longer, it may result in inconsistent bending angles, wavy bends, and poor straightness. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bending device that can process plates of larger lengths and has a better bending effect.

[0005] The objective of this utility model can be achieved through the following technical solutions: A bending device for a wood board bending machine, characterized in that it includes a main board positioning mechanism, a backing plate, and two bending brackets. The two bending brackets are spaced apart along the wood board conveying direction. Each bending bracket is provided with an arc-shaped bending toothed disc. Both sides of the bending toothed disc are provided with protruding teeth. The outer side of the bending toothed disc is provided with a driving gear that meshes with the protruding teeth, and the inner side is provided with a driven gear that meshes with the protruding teeth. Both the driving gear and the driven gear are rotatably fixed on a mounting plate. The driving gear is connected to a bending drive component on the mounting plate. A connecting plate is provided between the two bending brackets. Both ends of the connecting plate are fixedly connected to the mounting plate. When the driving gear moves from the lower end of the bending toothed disc to the upper end of the bending toothed disc, the connecting plate moves with the driving gear and changes from a horizontal state to a vertical state. Multiple connecting rods are spaced apart along the wood board conveying direction on the connecting plate. The inner end of each connecting rod is fixedly connected to the lower side of the backing plate. The backing plate can rotate with the connecting plate.

[0006] This bending device employs two bending supports spaced apart along the board conveying direction, each with an arc-shaped bending gear. This, combined with a mounting plate driven by a drive gear and rigidly connected via a connecting plate, ensures synchronized movement. Furthermore, the connecting plate and the support plate are fixed together by multiple spaced connecting rods. This design allows the connecting plate to drive the support plate to rotate synchronously from horizontal to vertical during bending. This structural design overcomes the poor synchronicity problem caused by multiple independent guide rollers in existing technologies. Especially for longer boards, it ensures uniform force and consistent deformation along the bending length, effectively preventing inconsistent bending angles and wavy board shapes. This significantly improves the straightness and overall bending effect of long boards.

[0007] In the bending device of the aforementioned wood bending equipment, an arc-shaped guide rail with a matching shape is provided on the inner side of the bending toothed disc, and an inner guide wheel and an outer guide wheel that can move along the arc-shaped guide rail are connected to the inner side of the mounting plate, and the inner guide wheel and the outer guide wheel are staggered.

[0008] This bending device features an arc-shaped guide rail on the inner side of the bending gear disc, and staggered inner and outer guide wheels connected to the inner side of the mounting plate. This allows the mounting plate and its driving and driven gears to be precisely guided and supported by the smooth rolling of the inner and outer guide wheels on the arc-shaped guide rail as they move along the bending gear disc. This structure effectively reduces motion resistance, improves transmission stability, and prevents the mounting plate from shifting or wobbling during movement, further ensuring the smoothness and accuracy of the bending process, thus contributing to better bending straightness.

[0009] Furthermore, the arc-shaped guide rail also plays a certain role in bearing pressure, thereby avoiding wear on the bending gear, drive gear and driven gear during the bending process, which helps to improve the service life of this bending device.

[0010] In the bending device of the aforementioned wooden board bending equipment, a support plate bracket perpendicular to the lower end of the support plate is provided, and the connecting rod is perpendicular to and fixedly connected to the support plate bracket.

[0011] A support bracket perpendicular to the lower end of the support plate is installed, and the connecting rod is vertically fixed to the support plate bracket. This structure enhances the rigidity and stability of the connection area between the support plate and the connecting rod, ensures the integrity of the support plate during the rotation of the connecting plate, prevents the uniformity of force application on the plate due to local deformation of the connection point, and helps long plates obtain a more consistent bending effect.

[0012] In the bending device of the aforementioned wood board bending equipment, the backing plate is provided with a number of grooves at intervals along the board conveying direction.

[0013] Several grooves are spaced apart along the conveying direction of the sheet on the back plate. This design provides a small deformation space or stress release area when the back plate contacts the sheet, which helps to distribute the pressure applied by the back plate more evenly on the surface of the sheet. Especially when there are slight unevenness or slight differences in thickness in the sheet itself, it can reduce local stress concentration, prevent the sheet from being crushed or cracked during bending, and improve bending quality. It is especially beneficial to the overall flatness of long sheets.

[0014] In the bending device of the aforementioned wood bending equipment, the connecting plate is provided with a connecting rod drive component that drives the connecting rod to reciprocate along its axial direction.

[0015] A connecting rod drive component is installed on the connecting plate, which drives the connecting rod to reciprocate along its axis. This allows the operator to precisely adjust the effective length of the connecting rod as needed, thereby fine-tuning the relative position or initial angle between the backing plate and the connecting plate. This adjustability enhances the adaptability to plates with different thicknesses and bending curvatures, and facilitates the optimization of the force application point and bending start state according to the specific characteristics of the plate. This helps to further improve bending accuracy and effect, and has a positive effect on the consistency control of the ends and middle of long plates.

[0016] In the bending device of the aforementioned wood board bending equipment, the bending bracket is fixed on the base plate, and the working platform of the wood board bending equipment is provided with a slide rail and a base plate driving component. A slider that cooperates with the slide rail is fixedly connected to the lower side of the base plate. The base plate driving component can drive the bending bracket to move along the slide rail, and the length direction of the slide rail is perpendicular to the length direction of the board.

[0017] The adjustable bending bracket, in conjunction with the connecting rod that can reciprocate along the axial direction, further enhances the adaptability to sheets of different thicknesses and bending curvatures. It facilitates the optimization of the force application point and bending start state according to the specific characteristics of the sheet material, which helps to further improve bending accuracy and effect. It has a particularly positive effect on the consistency control of the ends and middle of long sheets.

[0018] In the bending device of the aforementioned wood board bending equipment, the main board positioning mechanism includes a positioning bracket, a positioning cylinder, and a positioning component. The positioning cylinder is mounted on the positioning bracket, and the positioning component is fixedly connected to the drive shaft of the positioning cylinder. The positioning cylinder can drive the positioning component to reciprocate in the vertical direction and abut against the main body of the wood board.

[0019] The aforementioned mainboard positioning mechanism employs a structure where a positioning cylinder drives the positioning component to reciprocate vertically. The positioning cylinder provides a stable and reliable driving force, ensuring that the positioning component descends quickly and forcefully when needed, firmly abutting against the main body of the wooden board. This accurately positions and presses the main body of the board onto the predetermined work position, preventing it from shifting during bending. This reliable positioning is a prerequisite for ensuring the stability of the board material, especially long boards, during bending and for achieving accurate bending lines; it is crucial for obtaining good bending straightness.

[0020] In the bending device of the aforementioned wood bending equipment, an elastic body is provided on the lower side of the positioning member.

[0021] An elastomer is installed on the lower side of the positioning component. When the positioning component is pressed down and abuts against the main body of the wooden board, the elastomer can undergo elastic deformation. On the one hand, it plays a buffering role to avoid rigid impact damage to the surface of the board. On the other hand, it can adapt to the slight unevenness of the surface of the wooden board and provide a more uniform and flexible clamping force, ensuring stable positioning while protecting the surface quality of the board. This is of positive significance for ensuring the overall positioning effect and surface integrity of long boards during the bending process.

[0022] Compared with the prior art, the technical effects of this utility model are as follows: This utility model features two bending brackets spaced apart along the conveying direction of the wooden board, along with arc-shaped bending gears on them. These brackets are combined with a mounting plate structure driven by a drive gear, rigidly connected by a connecting plate, and moving synchronously. The connecting plate and the backing plate are fixedly connected by multiple spaced connecting rods. This allows the connecting plate to drive the backing plate to achieve a holistic and synchronous rotation from horizontal to vertical during the bending operation.

[0023] This invention overcomes the problem of poor synchronization caused by the action of multiple independent stop rollers in the prior art. Especially for long plates, it can ensure that the bending part is subjected to uniform force and consistent deformation along the length direction, effectively avoiding the problems of inconsistent bending angles and wavy plate shape, and significantly improving the straightness and overall bending effect of long plates. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the bottom structure of the bending bracket of this utility model; Figure 3 This is a schematic diagram of the backing plate of this utility model in the initial position; Figure 4 This is a schematic diagram of the backing plate of this utility model in the bent position; Figure 5This is a side view of the backing plate of this utility model in the bent position; Figure 6 This is a schematic diagram of the connection structure of the various components at the mounting plate of this utility model; Figure 7 This is a schematic diagram of the connection structure of the bent gear disc, driving gear, driven gear, inner guide wheel and outer guide wheel of this utility model; Figure 8 This is a partially enlarged view of the plate positioning mechanism of this utility model.

[0026] In the diagram, 11. Positioning bracket; 12. Positioning cylinder; 13. Positioning component; 14. Elastomer; 2. Backing plate; 21. Backing plate bracket; 22. Groove; 3. Bending bracket; 31. Base plate; 32. Slider; 33. Slide rail; 34. Base plate drive component; 41. Bending gear; 42. Drive gear; 43. Driven gear; 44. Mounting plate; 45. Bending drive component; 46. Arc-shaped guide rail; 47. Inner guide wheel; 48. Outer guide wheel; 5. Connecting plate; 51. Connecting rod; 52. Connecting rod drive component. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] The bending device of this wood board bending equipment includes a main board positioning mechanism, a backing plate 2, and two bending brackets 3. The two bending brackets 3 are spaced apart along the wood board conveying direction. Each bending bracket 3 is equipped with an arc-shaped bending toothed disc 41. Both sides of the bending toothed disc 41 are provided with protruding teeth. The outer side of the bending toothed disc 41 is provided with a driving gear 42, and the inner side is provided with a driven gear 43. Both the driving gear 42 and the driven gear 43 can be rotatably fixed on the mounting plate 44. The driving gear 42 is connected to the bending drive component 45 on the mounting plate 44. A connecting plate 5 is provided between the two bending brackets 3. The two ends of the connecting plate 5 are fixedly connected to the mounting plate 44. When the driving gear 42 moves from the lower end of the bending toothed disc 41 to the upper end of the bending toothed disc 41, the connecting plate 5 moves with the driving gear 42 and changes from a horizontal state to a vertical state. Multiple connecting rods 51 are spaced apart along the wood board conveying direction on the connecting plate 5. The inner end of the connecting rod 51 is fixedly connected to the lower side of the backing plate 2. The backing plate 2 can rotate with the connecting plate 5.

[0029] This bending device employs two bending supports 3 spaced apart along the conveying direction of the wooden board, along with their arc-shaped bending gears 41. These supports, combined with a mounting plate 44 driven by a drive gear 42 and rigidly connected to a connecting plate 5 for synchronized movement, and a connection between the connecting plate 5 and the support plate 2 via multiple spaced connecting rods 51, ensure that during bending, the connecting plate 5 drives the support plate 2 to rotate synchronously from horizontal to vertical. This structural design overcomes the problem of poor synchronization caused by multiple independent guide rollers in existing technologies. Especially for longer boards, it ensures uniform force and consistent deformation along the length of the bent section, effectively avoiding inconsistent bending angles and wavy board shapes, significantly improving the straightness and overall bending effect of long boards. The bending drive component 45 is a drive motor.

[0030] like Figure 2 and Figure 7 As shown, an arc-shaped guide rail 46 with a matching shape is provided on the inner side of the bending gear disk 41. An inner guide wheel 47 and an outer guide wheel 48 that can move along the arc-shaped guide rail 46 are connected to the inner side of the mounting plate 44. The inner guide wheel 47 and the outer guide wheel 48 are staggered. This bending device, by providing an arc-shaped guide rail 46 with a matching shape on the inner side of the bending gear disk 41 and connecting the staggered inner guide wheel 47 and outer guide wheel 48 on the inner side of the mounting plate 44, enables the mounting plate 44 and its driving gear 42 and driven gear 43 to be precisely guided and supported by the smooth rolling of the inner and outer guide wheels 48 on the arc-shaped guide rail 46 when moving along the bending gear disk 41. This structure effectively reduces motion resistance, improves transmission stability, and prevents the mounting plate 44 from shifting or shaking during movement, further ensuring the smoothness and accuracy of the bending process, thereby helping to obtain better bending straightness. Furthermore, the arc-shaped guide rail 46 also plays a certain role in bearing pressure, thereby avoiding wear on the bending gear 41, the driving gear 42 and the driven gear 43 during the bending process, which helps to improve the service life of this bending device.

[0031] like Figure 3-6As shown, a support plate 2 is provided perpendicularly to the lower end of the support plate 2, and the connecting rod 51 is perpendicular to and fixedly connected to the support plate 2; several grooves 22 are provided at intervals along the conveying direction of the sheet material on the support plate 2. The support plate 2 is provided perpendicularly to the lower end of the support plate 2, and the connecting rod 51 is vertically fixedly connected to the support plate 2. This structure enhances the rigidity and stability of the connection area between the support plate 2 and the connecting rod 51, ensuring the integrity of the support plate 2 during the rotation with the connecting plate 5, preventing the uniformity of force applied to the sheet material due to local deformation at the connection point, and is conducive to obtaining a more consistent bending effect for long sheet materials; the design of several grooves 22 at intervals along the conveying direction of the sheet material on the support plate 2 provides a small deformation space or stress release area when the support plate 2 contacts the sheet material, which helps to distribute the pressure applied by the support plate 2 more evenly on the surface of the sheet material. Especially when the sheet material itself has slight unevenness or slight thickness difference, it can reduce local stress concentration, prevent the sheet material from surface crushing or cracking during bending, improve bending quality, and is especially beneficial to the overall flatness of long sheet materials.

[0032] Furthermore, the connecting plate 5 is equipped with a connecting rod drive component 52 that drives the connecting rod 51 to reciprocate along its axial direction. This connecting rod drive component 52 allows the operator to precisely adjust the effective length of the connecting rod 51 as needed, thereby fine-tuning the relative position or initial angle between the backing plate 2 and the connecting plate 5. This adjustability enhances the adaptability to materials of different thicknesses and bending curvatures, facilitating the optimization of the force application point and bending start state according to specific material characteristics. This helps to further improve bending accuracy and effect, especially for controlling the consistency between the ends and the middle of long materials.

[0033] like Figure 1 and Figure 2 As shown, the bending bracket 3 is fixed to the base plate 31. The working platform of the wood bending equipment is equipped with a slide rail 33 and a base plate drive 34. A slider 32, which cooperates with the slide rail 33, is fixedly connected to the lower side of the base plate 31. The base plate drive 34 can drive the bending bracket 3 to move along the slide rail 33, the length direction of which is perpendicular to the length direction of the backing plate 2. The adjustable bending bracket 3, in conjunction with a connecting rod 51 capable of axial reciprocating movement, further enhances the adaptability to boards of different thicknesses and bending curvatures. This facilitates optimization of the force application point and bending start state according to the specific board characteristics, helping to further improve bending accuracy and effect, especially for controlling the consistency between the ends and the middle of long boards. The connecting rod drive 52 is a drive motor or cylinder; the base plate drive 34 is a drive motor or cylinder.

[0034] like Figure 1 and Figure 8As shown, the motherboard positioning mechanism includes a positioning bracket 11, a positioning cylinder 12, and a positioning element 13. The positioning cylinder 12 is mounted on the positioning bracket 11, and the positioning element 13 is fixedly connected to the drive shaft of the positioning cylinder 12. The positioning cylinder 12 can drive the positioning element 13 to reciprocate vertically and abut against the main body of the wooden board. An elastic body 14 is provided on the lower side of the positioning element 13. The aforementioned motherboard positioning mechanism adopts a structure in which the positioning cylinder 12 drives the positioning element 13 to reciprocate vertically. The positioning cylinder 12 can provide a stable and reliable driving force, ensuring that the positioning element 13 descends quickly and powerfully when needed and firmly abuts against the main body of the wooden board, accurately positioning and pressing the main body of the wooden board at the predetermined work position, preventing it from shifting during the bending process. This reliable positioning is a prerequisite for ensuring the stability of the position and accuracy of the bending line of the board, especially long boards, during the bending process, and is crucial for obtaining good bending straightness. An elastic body 14 is provided on the lower side of the positioning component 13. When the positioning component 13 is pressed down and abuts against the main body of the wooden board, the elastic body 14 can undergo elastic deformation. On the one hand, it plays a buffering role to avoid rigid impact damage to the surface of the board; on the other hand, it can adapt to the slight unevenness of the surface of the wooden board and provide a more uniform and flexible clamping force, ensuring stable positioning while protecting the surface quality of the board. This is of positive significance for ensuring the overall positioning effect and surface integrity of long boards during the bending process.

[0035] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. A bending device for a wood board bending machine, characterized in that: The system includes a mainboard positioning mechanism, a backing plate (2), and two bending brackets (3). The two bending brackets (3) are spaced apart along the board conveying direction. Each bending bracket (3) is provided with an arc-shaped bending gear (41). Both sides of the bending gear (41) are provided with protruding teeth. The outer side of the bending gear (41) is provided with a drive gear (42) that meshes with the protruding teeth, and the inner side is provided with a driven gear (43) that meshes with the protruding teeth. Both the drive gear (42) and the driven gear (43) can be rotatably fixed on the mounting plate (44). The drive gear (42) and the bending gear on the mounting plate (44) are connected. The bending drive component (45) is connected, and a connecting plate (5) is provided between the two bending brackets (3). The two ends of the connecting plate (5) are fixedly connected to the mounting plate (44). When the drive gear (42) moves from the lower end of the bending gear (41) to the upper end of the bending gear (41), the connecting plate (5) moves with the drive gear (42) and changes from a horizontal state to a vertical state. Multiple connecting rods (51) are arranged at intervals along the board conveying direction on the connecting plate (5). The inner end of the connecting rod (51) is fixedly connected to the lower side of the backing plate (2). The backing plate (2) can rotate with the connecting plate (5).

2. The bending device of a wood board bending machine according to claim 1, characterized in that: The inner side of the bent toothed disc (41) is provided with an arc-shaped guide rail (46) that matches its shape. The inner side of the mounting plate (44) is connected to an inner guide wheel (47) and an outer guide wheel (48) that can move along the arc-shaped guide rail (46). The inner guide wheel (47) and the outer guide wheel (48) are staggered.

3. The bending device of a wood board bending machine according to claim 1, characterized in that: The lower end of the back plate (2) is provided with a back plate (2) bracket perpendicular to it, and the connecting rod (51) is perpendicular to and fixedly connected to the back plate (2) bracket.

4. The bending device of a wood board bending machine according to claim 3, characterized in that: The backing plate (2) has several grooves (22) spaced apart along the conveying direction of the plate.

5. The bending device of a wood board bending machine according to claim 1, characterized in that: The connecting plate (5) is provided with a connecting rod drive component (52) that drives the connecting rod (51) to reciprocate along its axial direction.

6. The bending device of a wood board bending machine according to claim 5, characterized in that: The bending bracket (3) is fixed on the base plate (31). The working platform of the wooden board bending equipment is provided with a slide rail (33) and a base plate drive (34). The lower side of the base plate (31) is fixedly connected with a slider (32) that cooperates with the slide rail (33). The base plate drive (34) can drive the bending bracket (3) to move along the slide rail (33). The length direction of the slide rail (33) is perpendicular to the length direction of the backing plate (2).

7. The bending device of a wood board bending machine according to any one of claims 1-6, characterized in that: The motherboard positioning mechanism includes a positioning bracket (11), a positioning cylinder (12), and a positioning component (13). The positioning cylinder (12) is mounted on the positioning bracket (11), and the positioning component (13) is fixedly connected to the drive shaft of the positioning cylinder (12). The positioning cylinder (12) can drive the positioning component (13) to move back and forth in the vertical direction and abut against the main body of the wooden board.

8. The bending device of a wood bending machine according to claim 7, characterized in that: An elastomer (14) is provided on the lower side of the positioning member (13).

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