Pruning device for processing sound-absorbing cotton felt

Abstract

The trimming device comprises a workbench, a cutting tool is rotatably arranged at the top end of the workbench, a flattening frame is fixedly connected to the position, located at the position of the cutting tool, of the top end of the workbench, and two-way lead screws are rotatably connected to the two side walls in the flattening frame; and two driven blocks are meshed with the outer surface of the two-way screw rod. The two-way lead screw is rotated to drive the driven block to contract, so that the connecting rod rotates and pushes the flattening roller in the mounting frame to move downwards, the flattening roller and the sound-absorbing cotton felt are close to each other and are pressed tightly, the effect that the sound-absorbing cotton felt is always in contact with the surface of the workbench in the trimming process is achieved, and the trimming efficiency is improved. The phenomenon that the sound-absorbing cotton felt is suspended in the trimming process of the cutting tool is effectively avoided, adjustment can be conducted according to the sound-absorbing cotton felts with different thicknesses, and the trimming effect and practicability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of trimming devices, in particular to a trimming device for processing sound-absorbing cotton felt. Background Art

[0002] Sound-absorbing felt is a commonly used sound-absorbing material in car interiors. It is mainly used to reduce the propagation and reflection of noise and improve the acoustic performance of the car's interior environment. It is usually made of a variety of fiber materials, such as glass fiber, polyester fiber, etc. During the production and processing of sound-absorbing felt, it is usually necessary to customize it according to the specific needs of the car type, including specific size, shape, etc. Trimming is an important step to ensure that the final product meets the design requirements.

[0003] In the prior art, for example, Chinese patent CN220376980U discloses “a trimming device for processing sound-absorbing cotton felt”, which includes a chassis, a trimming table is provided on the upper outer surface of the chassis, and a fixed frame and an edge-sealing box are provided on the upper outer surface of the trimming table.

[0004] Although the above-mentioned utility model heats the heating plate through the electric heating tube, the heating plate can be used to hot stamp the edge of the trimmed sound-absorbing cotton felt, which can achieve the effect of edge sealing on the edge of the sound-absorbing cotton felt and prevent the sound-absorbing cotton felt from leaking when in use. However, when trimming and cutting the sound-absorbing cotton felt, the cutting force of the cutting tool is easily reduced due to fluctuations in the cutting action of the cutting knife, which can easily cause uneven edge cutting and require subsequent processing, reducing the trimming efficiency. Utility Model Content

[0005] The utility model aims to provide a trimming device for processing sound-absorbing cotton felt to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trimming device for processing sound-absorbing cotton felt, comprising a workbench, a cutting tool is rotatably arranged on the top of the workbench, a flattening frame is fixedly connected to the top of the workbench and located at the position of the cutting tool, two side walls inside the flattening frame are rotatably connected to a bidirectional screw rod, two follower blocks are meshed on the outer surface of the bidirectional screw rod, the bottom ends of the two follower blocks are rotatably connected to connecting rods, the bottom ends of the two connecting rods are rotatably connected to mounting frames, a flattening roller is rotatably connected inside the mounting frame, and an avoidance groove is provided on the outer surface of the flattening roller and located at the position of the cutting tool.

[0007] As a further preferred embodiment of the present technical solution, a mounting seat is fixedly connected at the top of the workbench and near the edge, square through holes are penetrated on both sides of the mounting seat, sliders are slidably connected inside the two square through holes, a pressing roller is rotatably connected between the two sliders, one end of the pressing roller passes through one of the sliders and is transmission-connected to a driving motor, an outer surface of the driving motor is fixedly connected to one side of the slider, an adjusting frame is fixedly connected to the top of the mounting seat, a servo motor is fixedly connected to the top of the adjusting frame, an adjusting screw is transmission-connected to the output end of the servo motor, a driven plate is meshed on the outer surface of the adjusting screw, and the bottom end of the driven plate is fixedly connected to the tops of the two sliders.

[0008] As a further preferred embodiment of the present technical solution, the inner bottom surfaces of the two square through holes are fixedly connected with return springs, and the other ends of the two return springs are respectively fixedly connected to the bottom ends of the two sliders.

[0009] As a further preferred embodiment of the technical solution, one end of the bidirectional screw rod passes through an inner side wall of the flattening frame and is fixedly connected to a polygonal connecting column, a turntable is slidably connected to the outer surface of the polygonal connecting column, a fixed seat is fixedly connected to one side of the flattening frame at the position of the bidirectional screw rod, and one end of the turntable is plugged into the interior of the fixed seat.

[0010] As a further preferred embodiment of the technical solution, one end of the turntable is interference fit with the interior of the fixing seat, and one end of the polygonal connecting column is fixed to a connecting block with a limiting plate.

[0011] As a further preferred embodiment of the technical solution, positioning grooves are provided on both side walls inside the flattening frame, positioning blocks are fixedly connected to both sides of the mounting frame, and outer surfaces of the two positioning blocks are slidably connected to the inside of the two positioning grooves respectively.

[0012] The utility model provides a trimming device for processing sound-absorbing cotton felt, which has the following beneficial effects:

[0013] (1) The utility model drives the driven block to retract by rotating the bidirectional screw rod, so that the connecting rod rotates and pushes the flattening roller in the mounting frame to move downward, so that the flattening roller and the sound-absorbing cotton felt are brought close to each other and pressed tightly, so that the sound-absorbing cotton felt is always in contact with the surface of the workbench during the trimming process, effectively avoiding the phenomenon of the sound-absorbing cotton felt being suspended in the air during the trimming process of the cutting tool, and can be adjusted according to the different thicknesses of the sound-absorbing cotton felt, thereby improving the trimming effect and practicality.

[0014] (2) The utility model drives the adjusting screw to rotate by rotating the servo motor, so that the driven plate descends and drives the pressing roller on the slider to move downward, so that the height of the pressing roller can be adjusted to adapt to the sound-absorbing cotton boards of different thicknesses. The pressing roller can be used for extrusion and limiting during the bonding and conveying process to ensure the stability of the conveying and facilitate the trimming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the flattening frame structure of the utility model;

[0017] Figure 3 This is an exploded schematic diagram of the internal structure of the flattening frame of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure between the mounting seat and the adjusting frame of the utility model.

[0019] In the figure: 1. workbench; 2. cutting tool; 3. flattening frame; 4. bidirectional screw; 5. driven block; 6. connecting rod; 7. mounting frame; 8. flattening roller; 9. avoidance groove; 10. positioning groove; 11. positioning block; 12. polygonal connecting column; 13. turntable; 14. fixing seat; 15. limiting plate; 16. mounting seat; 17. pressing roller; 18. adjusting frame; 19. servo motor; 20. adjusting screw; 21. driven plate; 22. square through hole; 23. slider; 24. driving motor; 25. reset spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-3 As shown, in the present embodiment, a trimming device for processing sound-absorbing cotton felt comprises a workbench 1, a cutting tool 2 is rotatably provided on the top of the workbench 1, a flattening frame 3 is fixedly connected to the top of the workbench 1 and located at the position of the cutting tool 2, a bidirectional screw rod 4 is rotatably connected to the two side walls inside the flattening frame 3, two follower blocks 5 are meshed on the outer surface of the bidirectional screw rod 4, the bottom ends of the two follower blocks 5 are both rotatably connected to connecting rods 6, the bottom ends of the two connecting rods 6 are rotatably connected to mounting frames 7, a flattening roller 8 is rotatably connected inside the mounting frame 7, an avoidance groove 9 is provided on the outer surface of the flattening roller 8 and located at the position of the cutting tool 2, wherein, by arranging the bidirectional screw rod 4, the two follower blocks 5 can be driven to move simultaneously, thereby improving the stability during the adjustment process, and by arranging the avoidance groove 9, the cutting tool 2 can be avoided to prevent it from contacting the outer surface of the flattening roller 8 during the cutting process.

[0022] like Figure 1 and Figure 4 As shown, a mounting seat 16 is fixedly connected at the top of the workbench 1 and near the edge, square through holes 22 are penetrated on both sides of the mounting seat 16, sliders 23 are slidably connected inside the two square through holes 22, a pressing roller 17 is rotatably connected between the two sliders 23, one end of the pressing roller 17 penetrates one side of one of the sliders 23 and is transmission-connected to a driving motor 24, the outer surface of the driving motor 24 is fixedly connected to one side of the slider 23, an adjusting frame 18 is fixedly connected to the top of the mounting seat 16, a servo motor 19 is fixedly connected to the top of the adjusting frame 18, an adjusting screw 20 is transmission-connected to the output end of the servo motor 19, a driven plate 21 is meshed on the outer surface of the adjusting screw 20, and the bottom end of the driven plate 21 is fixedly connected to the top of the two sliders 23, by setting the driving motor 24, the pressing roller 17 can be driven to rotate, and by setting the adjusting screw 20, the driven plate 21 can be driven to move up and down.

[0023] like Figure 4 As shown, the bottom surfaces of the two square through holes 22 are fixedly connected with return springs 25, and the other ends of the two return springs 25 are fixedly connected to the bottom ends of the two sliders 23 respectively. By providing the return springs 25, the sliders 23 can be easily reset.

[0024] like Figure 2 and Figure 3 As shown, one end of the bidirectional screw rod 4 passes through one side wall of the flattening frame 3 and is fixedly connected to a polygonal connecting column 12. A turntable 13 is slidably connected to the outer surface of the polygonal connecting column 12. A fixing seat 14 is fixedly connected to one side of the flattening frame 3 and located at the position of the bidirectional screw rod 4. One end of the turntable 13 is plugged into the inside of the fixing seat 14, which can fix the bidirectional screw rod 4 and improve stability.

[0025] like Figure 2 and Figure 3 As shown, one end of the turntable 13 is interference fit with the inside of the fixing seat 14, and one end of the polygonal connecting column 12 is fixed with a limiting plate 15 to prevent the turntable 13 from falling or falling off.

[0026] like Figure 2 and Figure 3 As shown, positioning grooves 10 are opened on both side walls of the flattening frame 3, and positioning blocks 11 are fixedly connected on both sides of the mounting frame 7. The outer surfaces of the two positioning blocks 11 are slidably connected to the inside of the two positioning grooves 10 respectively, which can position the mounting frame 7 to prevent skewing and improve stability.

[0027] The utility model provides a trimming device for processing sound-absorbing cotton felt, and the specific working principle is as follows:

[0028] Before trimming the sound-absorbing cotton felt, the turntable 13 is pulled out from the fixed seat 14, and then the bidirectional screw 4 is rotated to drive the driven block 5 to shrink, so that the connecting rod 6 rotates and pushes the flattening roller 8 in the mounting frame 7 to move downward, so that the flattening roller 8 is close to the sound-absorbing cotton felt and pressed tightly, and then the cutting tool 2 and the servo motor 19 are started, and the servo motor 19 drives the pressing roller 17 to rotate to roll and guide the sound-absorbing cotton felt, and the cutting tool 2 trims the passing sound-absorbing cotton felt, and during the trimming process, the flattening roller 8 presses the sound-absorbing cotton felt, so that the cutting tool 2 can perform stable trimming, and when the thickness of the sound-absorbing cotton felt changes, the servo motor 19 rotates to drive the adjusting screw 20 to rotate, so that the driven plate 21 descends and drives the pressing roller 17 on the slider 23 to move downward and fit the surface of the sound-absorbing cotton felt.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trimming device for processing sound-absorbing cotton felt, comprising a workbench (1), characterized in that: A cutting tool (2) is rotatably provided at the top of the workbench (1); a flattening frame (3) is fixedly connected to the top of the workbench (1) and located at the position of the cutting tool (2); two side walls inside the flattening frame (3) are rotatably connected to a bidirectional screw rod (4); the outer surface of the bidirectional screw rod (4) is meshed with two driven blocks (5); the bottom ends of the two driven blocks (5) are both rotatably connected to a connecting rod (6); the bottom ends of the two connecting rods (6) are rotatably connected to a mounting frame (7); a flattening roller (8) is rotatably connected inside the mounting frame (7); and an avoidance groove (9) is provided on the outer surface of the flattening roller (8) and located at the position of the cutting tool (2).

2. A trimming device for processing sound-absorbing cotton felt according to claim 1, characterized in that: A mounting seat (16) is fixedly connected to the top of the workbench (1) and near the edge. Square through holes (22) are formed on both sides of the mounting seat (16). Slide blocks (23) are slidably connected inside the two square through holes (22). A pressing roller (17) is rotatably connected between the two slide blocks (23). One end of the pressing roller (17) passes through one of the slide blocks (23) and is transmission-connected to a driving motor (24) on one side. The outer surface of the driving motor (24) is fixedly connected to one side of the slide block (23). An adjusting frame (18) is fixedly connected to the top of the mounting seat (16). A servo motor (19) is fixedly connected to the top of the adjusting frame (18). An adjusting screw rod (20) is transmission-connected to the output end of the servo motor (19). A driven plate (21) is meshed on the outer surface of the adjusting screw rod (20). The bottom end of the driven plate (21) is fixedly connected to the tops of the two slide blocks (23).

3. A trimming device for processing sound-absorbing cotton felt according to claim 2, characterized in that: The inner bottom surfaces of the two square through holes (22) are fixedly connected with return springs (25), and the other ends of the two return springs (25) are respectively fixedly connected to the bottom ends of the two sliding blocks (23).

4. A trimming device for processing sound-absorbing cotton felt according to claim 1, characterized in that: One end of the bidirectional screw rod (4) passes through a side wall of the flattening frame (3) and is fixedly connected to a polygonal connecting column (12); a rotating disk (13) is slidably connected to the outer surface of the polygonal connecting column (12); a fixing seat (14) is fixedly connected to one side of the flattening frame (3) at the position of the bidirectional screw rod (4); one end of the rotating disk (13) is plugged into the interior of the fixing seat (14).

5. A trimming device for processing sound-absorbing cotton felt according to claim 4, characterized in that: One end of the rotating disk (13) is interference-fitted with the interior of the fixing seat (14), and one end of the polygonal connecting column (12) is fixed with a limiting plate (15) on a connecting block.

6. A trimming device for processing sound-absorbing cotton felt according to claim 1, characterized in that: Positioning grooves (10) are provided on both side walls of the flattening frame (3), and positioning blocks (11) are fixedly connected to both sides of the mounting frame (7), and the outer surfaces of the two positioning blocks (11) are respectively slidably connected to the inside of the two positioning grooves (10).

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