Automatic chamfering device for wooden bookshelf production

Abstract

This invention relates to an automatic chamfering device for the production of wooden bookshelves, comprising a worktable, chamfering wheels rotatably mounted on the worktable, a drive motor, a movable seat located on the worktable, and an electric push rod. Matching plates are provided on both sides of the movable seat, and lifting plates are provided on both sides of the worktable. During chamfering, the lifting plates remain in contact with the upper end of the L-shaped workpiece. After chamfering is completed, as the movable seat moves backward, the lifting plates swing upward and separate from the upper end of the L-shaped workpiece, allowing the L-shaped workpiece to be removed. A working groove is provided through the movable seat, and the worktable is equipped with a closed chip-blocking structure. The device also includes a dust collection component, the negative pressure area of ​​which covers the closed chip-blocking structure. This design provides an automatic chamfering device for the production of wooden bookshelves, allowing wood chips to enter and be collected during the chamfering process.

Description

Technical Field

[0001] This invention relates to the field of bookshelf manufacturing technology, and more particularly to an automatic chamfering device for the production of wooden bookshelves. Background Technology

[0002] With the evolution of modern home design concepts and increasingly stringent safety standards for children's furniture, the treatment of sharp right-angle edges on bookshelves has become a mandatory quality indicator. The outer edges need to undergo high-precision chamfering to eliminate the risk of bumps and collisions and improve tactile comfort and visual smoothness.

[0003] However, the core design logic of existing chamfering machines is based on the linear feed of a single flat sheet material. For L-shaped workpieces, the traditional processing method is to chamfer the two sides one by one, which makes it impossible for the chamfered curved surface at the junction of the two sheets to close perfectly and may have obvious height steps, thus destroying its overall texture.

[0004] Therefore, how to perform chamfering across the seam of L-shaped workpieces to improve product qualification rate has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an automatic beveling device for the production of wooden bookshelves, in which wood chips can enter into a dust collection component and be collected during the beveling process, so as to solve the above-mentioned problems.

[0006] Based on the above objectives, the present invention provides an automatic chamfering device for the production of wooden bookshelves, comprising a worktable, a chamfering wheel rotatably mounted on the worktable, a drive motor for driving the chamfering wheel to rotate, a movable seat located on the worktable, and an electric push rod for driving the movable seat to move back and forth on the worktable. The movable seat has mating plates on both its left and right sides that limit the left and right sides of an L-shaped workpiece. The worktable has lifting plates on both sides of the movable seat that swing downwards as the movable seat moves forward. During chamfering, the lifting plates remain in contact with the upper end of the L-shaped workpiece. After chamfering, as the movable seat moves backwards, the lifting plates swing upwards and separate from the upper end of the L-shaped workpiece, allowing the L-shaped workpiece to be removed. A working groove is provided through the movable seat between the mating plates. The moving path of the working groove is located directly above the chamfering wheel, enabling the chamfering wheel to chamfer the L-shaped workpiece. A closed chip-blocking structure is provided between the chamfering wheel and the working groove on the worktable. The device also includes a dust collection component. The negative pressure area of ​​the dust collection component covers the closed chip-blocking structure to collect the generated wood chips.

[0007] Preferably, the enclosed chip-blocking structure includes a front baffle, a rear baffle, a collection bin located below the chamfered wheel, a left baffle and a right baffle located on the left and right sides of the workbench, the output shaft of the drive motor is inserted into the right baffle, the front baffle and the rear baffle are located on the front and rear sides of the movable seat respectively, the dust collection assembly includes a fan, a collection pipe located on the fan and a collection box, the collection bin is provided with a through hole, the collection pipe communicates with the through hole so that when the fan is started, the wood chips enter the collection box through the collection pipe.

[0008] Preferably, the through hole is a truncated cone shape with a downward-facing narrowing opening.

[0009] Preferably, the collection chamber is a hollow, truncated pyramid shape with a larger top and smaller bottom, designed to guide the wood chips falling into the collection chamber toward the through hole and into the collection pipe.

[0010] Preferably, both the front baffle and the rear baffle have a contact layer made of a flexible material at their bottom.

[0011] Preferably, the workbench is fixedly provided with guide rails on both the left and right sides below the movable seat, and the movable seat is provided with positioning grooves corresponding to each guide rail.

[0012] Preferably, it also includes adjustment plates located on the left and right sides of the movable seat and swing rods linked to each adjustment plate. The center position of the lifting plate is hinged to the corresponding mating plate and one end is hinged to the swing rod. One end of each swing rod is hinged to a mating rod. Each adjustment plate is provided with an adjustment groove for the corresponding mating rod to be inserted. When the movable seat moves forward under the action of the electric push rod, the mating rod moves along the corresponding adjustment groove to realize the downward swing of the lifting plate and abut against the upper end of the L-shaped workpiece.

[0013] Preferably, the adjusting groove includes a first section and a second section connected sequentially along the moving direction of the moving seat. The first section is inclined downward from front to back, and the second section extends forward and backward. When the moving seat moves forward, the cooperating rod moves along the first section to realize the downward swing of the lifting plate. When the cooperating rod moves along the second section, the lifting plate contacts the top surface of the L-shaped workpiece.

[0014] Preferably, each of the mating plates has a mating section on both the front and rear sides that fits against the L-shaped workpiece, and the bottom of each mating plate is detachably connected to the movable seat.

[0015] Preferably, the worktable is integrally formed with a front stop block on the front side of the movable seat, and a rear stop block is provided on the rear side of the movable seat. Before chamfering, the rear side of the movable seat abuts against the rear stop block; after chamfering is completed, the front side of the movable seat abuts against the front stop block.

[0016] The beneficial effects of this invention are as follows: 1. After the L-shaped workpiece is loaded into the movable seat from top to bottom, its position in the left and right directions is restricted by the mating plates on both sides. As the movable seat moves forward, it drives the lifting plate to swing downward. This ensures that when the corner of the L-shaped workpiece reaches directly above the chamfering wheel, the bottom surface of the lifting plate abuts against the top surface of the L-shaped workpiece located between the mating plates. During the chamfering of the corner of the L-shaped workpiece, the bottom surface of the lifting plate always abuts against the top surface of the L-shaped workpiece. Therefore, during the chamfering process, the L-shaped workpiece cannot move upwards past the pressure plate and lifting plate, ensuring that the chamfered position (i.e., the corner) is always accurately inserted into the working groove and in contact with the chamfering wheel, thereby improving the pass rate of the chamfered dimensions. 1. Perfectly adapts to the requirements of children's bookshelves for rounded corner safety and uniform size; 2. Since the corner of the L-shaped workpiece to be chamfered is located in the working groove, while the rest of the L-shaped workpiece is located in the space above the moving seat, during the chamfering process, the flying wood chips and dust will fall downwards and enter the closed chip-blocking structure, which can effectively limit the space for wood chips to rise, reduce the coverage of the upper surface of the L-shaped workpiece, and after entering the closed chip-blocking structure, they can be collected under the negative pressure of the dust collection component; 3. The operation of chamfering the corner of the workpiece after contact with the chamfering wheel is different from the traditional processing method of chamfering the two sides one by one, which prevents the chamfered curved surfaces of the two boards from being perfectly closed and the height from being inconsistent. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a perspective view of the collection bin being removed from the workbench in this invention;

[0021] Figure 4 This is a cross-sectional view of the collection chamber in this invention.

[0022] The diagram is marked as follows:

[0023] 1. Worktable; 11. Rear stop; 12. Front stop; 13. Guide rail;

[0024] 2. Beveled wheels;

[0025] 3. Drive motor;

[0026] 4. Moving seat; 41. Mating plate; 411. Mating section; 42. Working groove; 43. Lifting plate; 431. Adjustment groove; 4311. First section; 4312. Second section; 44. Positioning groove; 45. Adjustment plate; 46. Mating rod; 47. Swing rod;

[0027] 5. Electric linear actuator;

[0028] 6. Fan;

[0029] 7. Enclosed chip-blocking structure; 71. Front baffle; 72. Rear baffle; 73. Collection chamber; 731. Through hole; 74. Left baffle; 75. Right baffle.

[0030] 8. Collection tube;

[0031] 9. Collection box. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1-4As shown, an automatic chamfering device for producing wooden bookshelves includes a worktable 1, chamfering wheels 2 rotatably mounted on the worktable 1, a drive motor 3 for driving the chamfering wheels 2 to rotate, a movable seat 4 located on the worktable 1, and an electric push rod 5 for driving the movable seat 4 to move back and forth on the worktable 1. The movable seat 4 has mating plates 41 on both its left and right sides that limit the left and right sides of the L-shaped workpiece. The worktable 1 has lifting plates 43 on both sides of the movable seat 4 that swing downwards as the movable seat 4 moves forward. When the chamfering operation is underway, the lifting plates 43 can always maintain contact with the L-shaped workpiece. After the upper end of the workpiece is attached and the chamfering is completed, as the moving seat 4 moves backward, the lifting plate 43 swings upward and separates from the upper end of the L-shaped workpiece, allowing the L-shaped workpiece to be removed. The moving seat 4 is provided with a working groove 42 through the position between the mating plates 41. The moving path of the working groove 42 is located directly above the chamfering wheel 2, enabling the chamfering wheel 2 to chamfer the L-shaped workpiece. The worktable 1 is provided with a closed chip-blocking structure 7 between the chamfering wheel 2 and the working groove 42, and also includes a dust collection component 6. The negative pressure area of ​​the dust collection component 6 covers the closed chip-blocking structure 7 to collect the generated wood chips. 1. After the L-shaped workpiece is inserted into the movable seat 4 from top to bottom, its position in the left and right directions is restricted by the mating plates 41 on both sides. As the movable seat 4 moves forward, it causes the lifting plate 43 to swing downward. When the corner of the L-shaped workpiece reaches directly above the chamfering wheel 2, the bottom surface of the lifting plate 43 abuts against the top surface of the L-shaped workpiece located between the mating plates 41. During the chamfering work at the corner of the L-shaped workpiece, the bottom surface of the lifting plate 43 always abuts against the top surface of the L-shaped workpiece. This prevents the L-shaped workpiece from moving upward over the pressure plate lifting plate 43 during the chamfering process, ensuring that the chamfered position (i.e., the corner) is always accurately inserted into the working groove 42 and in contact with the chamfering wheel 2, thereby improving the pass rate of the chamfered dimensions. 1. Perfectly adapts to the requirements of children's bookshelves for rounded corner safety and uniform size; 2. Since the corner of the L-shaped workpiece to be chamfered is located in the working groove 42, while the rest of the L-shaped workpiece is located in the space above the moving seat 4, during the chamfering process, the flying wood chips and dust will fall downwards and enter the closed chip-blocking structure 7, which can effectively limit the space for wood chips to rise, reduce the coverage of the upper surface of the L-shaped workpiece, and after entering the closed chip-blocking structure 7, they can be collected under the negative pressure of the dust collection component 6; 3. The operation of chamfering the corner of the workpiece after contacting the chamfering wheel 2 is different from the traditional processing method of chamfering the two sides one by one, which prevents the chamfered curved surfaces of the two boards at the junction from not being perfectly closed and having inconsistent heights.

[0035] The enclosed chip-blocking structure 7 includes a front baffle 71, a rear baffle 72, a collection chamber 73 located below the chamfered wheel 2, a left baffle 74 and a right baffle 75 located on the left and right sides of the workbench 1. The output shaft of the drive motor 3 is inserted into the right baffle 75. The front baffle 71 and the rear baffle 72 are located on the front and rear sides of the movable seat 4, respectively. The dust collection assembly 6 includes a fan 61 (this is prior art and will not be described in detail here), a collection pipe 62 located on the fan 61, and a collection box 63. The collection chamber 73 is provided with a through hole 731. The collection pipe 62 is connected to the through hole 731 so that when the fan 61 is started, the wood chips enter the collection box 63 through the collection pipe 62.

[0036] It is worth noting that in this embodiment, after the chamfering of the L-shaped workpiece is completed, the rear baffle 72 is still located behind the chamfering wheel 2, while the front baffle 71 is always located in front of the chamfering wheel 2. Therefore, there will be no interference between the rear baffle 72 and the chamfering wheel 2.

[0037] Due to the presence of the front baffle 71 and the rear baffle 72 on the movable seat 4, the front baffle 71 and the rear baffle 72 can always be located on the front and rear sides of the chamfering wheel 2 respectively during the forward and backward movement of the movable seat 4. The presence of the left baffle 74 and the right baffle 75 prevents the wood chips from being thrown to the left and right sides and causes them to fall outside the left baffle 74 and the right baffle 75. Thus, the closed chip blocking structure 7 can always limit the range of wood chips being thrown up and splashed during the chamfering process. Furthermore, the closed chip blocking structure 7 can work together with the dust collection component 6 to collect the wood chips, so that the wood chips generated during the chamfering process can always enter the collection chamber 73 downwards and enter the collection pipe 62 through the through hole 731. At this time, the fan 61 is turned on, which can apply negative pressure to the collection chamber 73 and the collection pipe 62, causing the wood chips to move towards the collection box 63.

[0038] It is also worth noting that the board can be removed from the bottom of the workbench 1 to remove and clean the sawdust in the collection box 63.

[0039] Preferably, the through hole 731 is a frustum-shaped structure with a downward-facing narrowing opening. Since the top diameter of the through hole 731 is the largest, the wood chips can reach the top of the through hole 731 more quickly when entering it downwards. As the wood chips fall into the through hole 731, they enter the part where the diameter of the through hole 731 gradually decreases, which can increase the flow rate and further improve the collection efficiency of the wood chips.

[0040] The collection chamber 73 is a hollow, frustum-shaped structure, wider at the top and narrower at the bottom, designed to guide wood chips falling into the collection chamber 73 towards the through hole 731 and into the collection pipe 62. The through hole 731 is located at the center of the bottom of the collection chamber 73. During the chamfering process, when the chamfering wheel 2 contacts the corner of the workpiece, the falling wood chips can move directly downwards through the through hole 731. If the wood chips fall on the inner wall of the collection chamber 73, since the interior of the collection chamber 73 is frustum-shaped, the wood chips can move downwards along the inclined surfaces of the inner wall of the collection chamber 73 and approach the bottom of the collection chamber 73. After the fan 61 is started, the wood chips that have not yet reached the through hole 731 but are located on the inner wall of the collection chamber 73 will move towards the opening of the collection pipe 62 under the action of negative pressure, that is, through the through hole 731 and along the collection pipe 62 into the collection box 63.

[0041] The bottom of both the front baffle 71 and the rear baffle 72 is provided with a contact layer made of flexible material. Therefore, as the movable seat 4 moves forward, the front baffle 71 and the rear baffle 72 will not scratch or damage the collection chamber 73 during contact with the top of the collection chamber 73 because the contact layer at the bottom is made of flexible material.

[0042] Preferably, the workbench 1 is fixed with guide rails 13 on both the left and right sides below the movable seat 4 by bolts. The movable seat 4 is provided with positioning grooves 44 corresponding to each guide rail 13. Therefore, when the electric push rod 5 is activated to move the movable seat 4, which is loaded with L-shaped workpieces, forward for chamfering or backward to remove the L-shaped workpieces, the positioning grooves 44 of the movable seat 4 can cooperate with the guide rails 13 to enable the movable seat 4 to move smoothly along the length of the guide rails 13.

[0043] This includes adjustment plates 45 located on the left and right sides of the movable seat 4, and swing rods 47 linked to each adjustment plate 45. The center of the lifting plate 43 is hinged to the corresponding mating plate 41, and one end is hinged to the swing rod 47. One end of each swing rod 47 is hinged to a mating rod 46. Each adjustment plate 45 is provided with an adjustment groove 431 for the corresponding mating rod 46 to be inserted. When the movable seat 4 moves forward under the action of the electric push rod 5, the mating rod 46 moves along the corresponding adjustment groove 431 to realize the downward swing of the lifting plate 43 and abut against the upper end of the L-shaped workpiece. As the electric push rod 5 drives the movable seat 4 to move forward, the forward-moving mating plates 41 can drive the mating rod 46 to move within the adjustment groove 431. Thus, when the corner of the L-shaped workpiece contacts the chamfered wheel 2, the swing rod 47 moves upward as the mating rod 46 moves upward, and because the lifting plate 43... The center position is hinged to the mating plate 41 and one end is hinged to the swing rod 47, so that the lifting plate 43 can swing downward continuously as the swing rod 47 moves upward. When the chamfered position of the L-shaped workpiece contacts the chamfering wheel 2, the bottom surface of the lifting plate 43 will abut against the top surface of the L-shaped workpiece, thus smoothly limiting the upper part of the L-shaped workpiece, so that the chamfered position can smoothly contact the chamfering wheel 2. After the chamfering is completed, when the electric push rod 5 drives the moving seat 4 to move backward, when the end of the corner position of the L-shaped workpiece separates from the chamfering wheel 2, the swing rod 47 moves downward and the lifting plate 43 swings upward. The lifting plate 43 separates from the top of the L-shaped workpiece, and the chamfered L-shaped workpiece can be taken out from the moving seat 4. Then, a new L-shaped workpiece that needs to be chamfered is put in and the moving seat 4 is pushed forward. This process is repeated to achieve the chamfering and removal of multiple workpieces.

[0044] The adjusting groove 431 includes a first section 4311 and a second section 4312 connected sequentially along the moving direction of the movable seat 4. The first section 4311 is inclined downward from front to back, and the second section 4312 extends forward and backward. When the L-shaped workpiece is placed between the two mating plates 41 of the movable seat 4, the mating rod 46 is located in the first section 4311, that is, the swing rod 47 moves downward under the action of gravity, and the lifting plate 43 swings upward to a position away from the upper end of the L-shaped workpiece, so that the workpiece can be placed between the two mating plates 41 through the upper port formed by the two mating plates 41 without being interfered with by the lifting plate 43. When the movable seat 4 moves forward, the mating rod 46 moves along the first section 4311 and gradually moves upward, and the swing rod 47 moves upward to realize the downward swing of the lifting plate 43, thereby realizing the downward swing of the lifting plate 43 and the L-shaped workpiece. The top of the L-shaped workpiece is fitted to limit its position. As the chamfering work begins, the mating rod 46 enters the second section 4312 and moves along the second section 4312. The lifting plate 43 smoothly fits against the top surface of the L-shaped workpiece. As the moving seat 4 moves forward, the adjusting column 46 moves along the first section 4311 to move the lifting plate 43 downward. After the chamfering work is completed, the electric push rod 5 drives the moving seat 4 to move backward. When the end corner of the L-shaped workpiece separates from the chamfering wheel 2, the mating rod 46 enters the inclined first section 4311 from the second section 4312. As the mating rod 46 moves downward along the first section 4311, the swing rod 47 moves downward, which can drive the lifting plate 43 to swing upward and separate from the L-shaped workpiece. At this time, the chamfered L-shaped workpiece can be taken out from the upper port between the two mating plates 41.

[0045] In addition, each of the mating plates 41 has mating sections 411 on both the front and rear sides that fit with the L-shaped workpiece. The bottom of each mating plate 41 is detachably connected to the movable seat 4 by bolts or other means. Therefore, when the specifications of the L-shaped workpiece to be processed change, a new mating plate 41 can be replaced accordingly. Its inner wall can fit with the left and right sides of the newly placed L-shaped workpiece, thereby limiting the L-shaped workpiece of different specifications and meeting more usage needs. Furthermore, the mating sections 411 on the mating plates 41 can further limit the front and rear sides of the L-shaped workpiece located between the mating plates 41.

[0046] The worktable 1 is integrally formed with a front stop 12 on the front side of the movable seat 4, and a rear stop 11 is provided on the rear side of the movable seat 4. Before chamfering, the rear side of the movable seat 4 abuts against the rear stop 11; after chamfering, the front side of the movable seat 4 abuts against the front stop 12. When the electric push rod 5 is activated to move the movable seat 4 forward or backward, when the movable seat 4 abuts against the front stop 12, it means that the corner of the L-shaped workpiece that needs to be chamfered has been chamfered. At this time, the electric push rod 5 drives the movable seat 4 to move backward. When the movable seat 4 abuts against the rear stop 11, the corner position has been completely separated from the chamfering wheel 2. At this time, the chamfered L-shaped workpiece can be taken out and a new workpiece that needs to be chamfered can be put in.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0048] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An automatic chamfering device for the production of wooden bookshelves, comprising a worktable (1), a chamfering wheel (2) rotatably mounted on the worktable (1), a drive motor (3) for driving the chamfering wheel (2) to rotate, a movable seat (4) located on the worktable (1), and an electric push rod (5) for driving the movable seat (4) to move back and forth on the worktable (1), characterized in that: The movable seat (4) is provided with mating plates (41) on both the left and right sides to limit the left and right sides of the L-shaped workpiece. The worktable (1) is provided with lifting plates (43) on both sides of the movable seat (4) that swing downward as the movable seat (4) moves forward. When the chamfering work is performed, the lifting plates (43) can always be in contact with the upper end of the L-shaped workpiece. After the chamfering work is completed, as the movable seat (4) moves backward, the lifting plates (43) swing upward and separate from the upper end of the L-shaped workpiece so that the L-shaped workpiece can be taken out. The movable seat (4) is provided with a working groove (42) through the position between the mating plates (41). The moving path of the working groove (42) is located directly above the chamfering wheel (2) to achieve the chamfering of the L-shaped workpiece by the chamfering wheel (2). The worktable (1) is provided with a closed chip-blocking structure (7) between the chamfering wheel (2) and the working groove (42). It also includes a dust collection component (6). The negative pressure area of ​​the dust collection component (6) covers the closed chip-blocking structure (7) for collecting the generated wood chips.

2. The automatic chamfering device for producing wooden bookshelves according to claim 1, characterized in that: The enclosed chip-blocking structure (7) includes a front baffle (71), a rear baffle (72), a collection bin (73) located below the chamfered wheel (2), a left baffle (74) and a right baffle (75) located on the left and right sides of the workbench (1). The output shaft of the drive motor (3) is inserted into the right baffle (75). The front baffle (71) and the rear baffle (72) are located on the front and rear sides of the movable seat (4), respectively. The dust collection assembly (6) includes a fan (61), a collection pipe (62) located on the fan (61), and a collection box (63). The collection bin (73) is provided with a through hole (731). The collection pipe (62) is connected to the through hole (731) so that after the fan (61) is started, the wood chips enter the collection box (63) through the collection pipe (62).

3. An automatic chamfering device for the production of wooden bookshelves according to claim 2, characterized in that: The through hole (731) is a frustum-shaped structure with a downward-facing narrowing opening.

4. An automatic chamfering device for the production of wooden bookshelves according to claim 2 or 3, characterized in that: The collection chamber (73) is a hollow, truncated pyramid with a larger top and smaller bottom, designed to guide the wood chips falling into the collection chamber (73) to move towards the through hole (731) and into the collection pipe (62).

5. An automatic chamfering device for the production of wooden bookshelves according to claim 2, characterized in that: The bottom of both the front baffle (71) and the rear baffle (72) is provided with a contact layer made of flexible material.

6. An automatic chamfering device for the production of wooden bookshelves according to claim 1, characterized in that: The workbench (1) is fixedly provided with guide rails (13) on both the left and right sides below the movable seat (4), and the movable seat (4) is provided with positioning grooves (44) corresponding to each guide rail (13).

7. An automatic chamfering device for the production of wooden bookshelves according to claim 6, characterized in that: It also includes adjustment plates (45) located on the left and right sides of the movable seat (4) and swing rods (47) linked with each adjustment plate (45). The center position of the lifting plate (43) is hinged to the corresponding side of the mating plate (41) and one end is hinged to the swing rod (47). One end of each swing rod (47) is hinged to a mating rod (46). Each adjustment plate (45) is provided with an adjustment groove (431) for the corresponding mating rod (46) to be inserted. When the movable seat (4) moves forward under the action of the electric push rod (5), the mating rod (46) moves along the corresponding adjustment groove (431) to realize the downward swing of the lifting plate (43) and abut against the upper end of the L-shaped workpiece.

8. An automatic chamfering device for the production of wooden bookshelves according to claim 7, characterized in that: The adjustment groove (431) includes a first section (4311) and a second section (4312) connected sequentially along the moving direction of the moving seat (4). The first section (4311) is inclined from front to back and downward. The second section (4312) extends along the front and back. When the moving seat (4) moves forward, the cooperating rod (46) moves along the first section (4311) to realize the downward swing of the lifting plate (43). When the cooperating rod (46) moves in the second section (4312), the lifting plate (43) smoothly fits against the top surface of the L-shaped workpiece.

9. An automatic chamfering device for the production of wooden bookshelves according to claim 1, characterized in that: Each of the mating plates (41) has a mating section (411) on both the front and rear sides that fits with the L-shaped workpiece, and the bottom of each mating plate (41) is detachably connected to the movable seat (4).

10. An automatic chamfering device for the production of wooden bookshelves according to claim 1, characterized in that: The workbench (1) is integrally formed with a front stop (12) on the front side of the movable seat (4), and a rear stop (11) is provided on the rear side of the workbench (1) on the rear side of the movable seat (4). Before chamfering, the rear side of the movable seat (4) abuts against the rear stop (11); after chamfering is completed, the front side of the movable seat (4) abuts against the front stop (12).

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