Cutting device for automobile sound insulation pad

Abstract

The invention discloses a cutting device for an automobile sound insulation pad, and relates to the technical field of cutting devices, the cutting device comprises a workbench, a pressing mechanism and a cutting blanking mechanism, the pressing mechanism is arranged on one side of the workbench, and the cutting blanking mechanism is arranged on the other side of the workbench. According to the sound insulation pad cutting device, the cutting end of a sound insulation pad is pre-pressed through the rubber pressing cylinder, after the sound insulation pad is pressed in place, cutting operation is conducted through the cutting knife, synchronous linkage of cutting and pressing actions is achieved, the problems of local wrinkling and warping during sound insulation pad cutting are effectively solved through the design, it is ensured that the cut edge is flat and smooth, the product cutting quality is further improved, and the production efficiency is improved. And after cutting is completed, when the piston rod of the second air cylinder retracts, the guide rod is reset under the action of the spring, the shifting rod is driven by the torsional spring to rotate reversely, waste generated by cutting is accurately shifted to the discharging opening of the workbench through the rubber pressing cylinder, automatic cleaning of the waste is achieved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of cutting devices, and more specifically to a cutting device for automotive sound insulation pads. Background Technology

[0002] With the rapid development of the automotive industry, consumers' demands for driving comfort are increasing. As one of the core indicators of comfort, automotive sound insulation performance has received high attention from OEMs and parts suppliers. As a key component for achieving sound insulation, automotive sound insulation pads typically need to be precisely matched to the vehicle's interior structure. Therefore, the precision and efficiency of cutting and processing directly determine the assembly quality and manufacturing cost of the sound insulation pads during production.

[0003] Currently, the cutting of automotive sound insulation pads is mainly done with semi-automatic cutting equipment. Although such equipment can achieve basic cutting functions, it generally has structural design defects: the waste generated after cutting needs to be manually cleaned up, which not only prolongs the operation cycle of a single cutting, but may also affect the continuity of subsequent operations due to the accumulation of waste. In addition, some equipment lacks a clamping structure at the cutting end, which can easily cause local wrinkling of the sound insulation pad. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting device for automotive sound insulation pads to overcome the above-mentioned defects in the prior art.

[0005] A cutting device for automotive sound insulation pads includes a workbench, a pressing mechanism, and a cutting and unloading mechanism. The pressing mechanism is located on one side of the workbench and is used to fix the automotive sound insulation pads to be cut. The cutting and unloading mechanism is located on the other side of the workbench and is used to cut and press the automotive sound insulation pad. After cutting, the waste material is removed from the workbench.

[0006] Preferably, the clamping mechanism includes a positioning plate, a cylinder, and a pressure plate. The positioning plate is disposed on the worktable and has a plurality of positioning grooves evenly distributed on it. The cylinder is disposed on a fixed frame on the worktable. The lower end of the piston rod of the cylinder is provided with a connecting plate. The connecting plate is slidably connected to the fixed frame through a sliding rod. The connecting plate is provided with pressure plates corresponding to the positioning grooves one by one.

[0007] Preferably, the cutting and blanking mechanism includes a second cylinder, a cutting knife, a guide rod, a lever, a torsion spring and a rubber pressing cylinder. The workbench is provided with bases corresponding to the positioning grooves one by one. Each base is provided with a support frame. The top of each support frame is provided with a second cylinder. The lower end of the piston rod of the second cylinder is provided with a slider slidably connected to the slide rail on the support frame. The cutting knife is arranged at the lower end of the slider. The guide rod is slidably connected to the support plate on the support frame. The lower end of the guide rod is provided with a stop disc and the upper end is provided with a pressure disc. The lower end of the stop disc is provided with a fixed block. A spring is sleeved on the guide rod between the pressure disc and the support plate. The upper end of the lever is rotationally connected to the mounting groove on the fixed block through a rotating shaft. The fixed block is provided with an arc-shaped baffle on one side of the mounting groove. The torsion spring is sleeved on the rotating shaft and one end of it is connected to the fixed block. The other end of the torsion spring is connected to the rotating shaft. The rubber pressing cylinder is rotationally connected to the lower end of the lever.

[0008] Preferably, the fixing frame is of a "U" - shaped structure with its opening facing downwards.

[0009] Preferably, there are two first cylinders symmetrically arranged on both sides of the fixing frame.

[0010] Preferably, there are several sliding rods evenly distributed on the fixing frame.

[0011] Preferably, the support frame is of a "Z" - shaped structure.

[0012] Preferably, the rubber pressing cylinder is connected to the wheel frame on the lever.

[0013] Preferably, the workbench is provided with a blanking port on the side of each base.

[0014] The beneficial effects achieved by the present invention are as follows: In this application, the positioning grooves of the positioning plates in the pressing mechanism and the pressing plates form a corresponding positioning and pressing structure one by one, which can accurately position and fix the sound insulation pad, effectively avoiding the displacement of the sound insulation pad during the cutting process due to force. In the cutting and blanking mechanism, the pre - pressing assembly composed of the guide rod, the spring and the rubber pressing cylinder will first pre - press the cutting end of the sound insulation pad through the rubber pressing cylinder during the downward movement of the cutting knife driven by the second cylinder. After the pressing is in place, the cutting knife will perform the cutting operation, realizing the synchronous linkage of the cutting and pressing actions. This design effectively solves the problems of local wrinkling and warping of the sound insulation pad during cutting, ensuring that the cutting edge is flat and smooth, further improving the cutting quality of the product. After cutting, when the piston rod of the second cylinder retracts, the guide rod resets under the action of the spring, and the lever rotates reversely under the drive of the torsion spring, and the waste generated by cutting is dialed to the blanking port of the workbench through the rubber pressing cylinder, realizing the automatic cleaning of waste and reducing the labor intensity of operators. Description of the Drawings

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the pressing mechanism of the present invention.

[0017] Figure 3 This is a schematic diagram of the front side of the cutting and unloading mechanism of the present invention.

[0018] Figure 4 This is a side view of the cutting and blanking mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of one side of the guide rod, support plate, and lever of the present invention.

[0020] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0021] Figure 7 This is a schematic diagram of the other side of the guide rod, support plate, and lever of the present invention.

[0022] In the diagram, 1. Workbench; 11. Feeding port; 2. Clamping mechanism; 21. Positioning plate; 211. Positioning groove; 22. Cylinder 1; 23. Fixing frame; 24. Connecting plate; 25. Slide rod; 26. Pressure plate; 3. Cutting and feeding mechanism; 31. Base; 32. Support frame; 321. Slide rail; 33. Cylinder 2; 34. Slider; 35. Cutting blade; 36. Guide rod; 361. Pressure plate; 362. Baffle plate; 3621. Fixing block; 3622. Mounting groove; 3623. Arc-shaped baffle; 363. Spring; 37. Support plate; 38. Lever; 381. Rotating shaft; 382. Torsion spring; 39. Wheel frame; 391. Rubber cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] like Figure 1-7 As shown, the present invention provides a cutting device for automotive sound insulation pads, including a workbench 1, a pressing mechanism 2 and a cutting and unloading mechanism 3; In addition, the clamping mechanism 2 is located on one side of the workbench 1 and is used to fix the car sound insulation pad to be cut. The clamping mechanism 2 includes a positioning plate 21, a cylinder 22 and a pressure plate 26. The positioning plate 21 is located on the workbench 1 and has a number of positioning grooves 211 evenly distributed on it. The cylinder 22 has two fixed frames 23 symmetrically arranged on both sides of the workbench 1, so that the clamping action is stable and reliable. The fixed frame 23 has a "U" shaped structure and its opening faces downward. In addition, the piston rod of the cylinder 22 is provided with a connecting plate 24 at the lower end. The connecting plate 24 is slidably connected to the fixed frame 23 through several evenly distributed sliding rods 25. The multiple evenly distributed sliding rods 25 greatly improve the guiding accuracy and stability of the vertical movement of the connecting plate 24. The connecting plate 24 is provided with pressure plates 26 that correspond one-to-one with the positioning grooves 211. The car sound insulation pad is fixed by the clamping mechanism 2 before cutting, which effectively prevents it from moving or deforming during the cutting process, thus ensuring the accuracy of the cutting outline and the neatness of the edges.

[0027] However, the cutting and feeding mechanism 3 is located on the other side of the workbench 1 and is used to cut and press the automotive sound insulation pad. After cutting, the cut waste material is pushed away from the workbench 1. The cutting and feeding machine includes a cylinder 33, a cutting blade 35, a guide rod 36, a lever 38, a torsion spring 382, ​​and a rubber cylinder 391. The workbench 1 is provided with a base 31 that corresponds one-to-one with the positioning groove 211. The workbench 1 is provided with a feeding port 11 on the side of each base 31. The feeding port 11 provides a discharge channel for the waste material pushed by the lever 38. In addition, each base 31 is equipped with a Z-shaped support frame 32, and each support frame 32 has a cylinder 33 at its top. The lower end of the piston rod of the cylinder 33 is equipped with a slider 34 that is slidably connected to the slide rail 321 on the support frame 32. The cutting blade 35 is located at the lower end of the slider 34. The guide rod 36 is slidably connected to the support plate 37 on the support frame 32. The lower end of the guide rod 36 is equipped with a baffle 362 and the upper end is equipped with a pressure plate 361. The lower end of the baffle 362 is equipped with a fixing block 3621. A spring 363 is sleeved on the guide rod 36 and located between the pressure plate 361 and the support plate 37. The upper end of the lever 38 is rotatably connected to the mounting groove 3622 on the fixing block 3621 through the rotating shaft 381. The fixing block 3621 has an arc-shaped baffle 3623 on one side of the mounting groove 3622. The torsion spring 382 is sleeved on the rotating shaft 381 and one end of it is connected to the fixing block 3621. The other end of the torsion spring 382 is connected to the rotating shaft 381. The rubber pressure cylinder 391 is connected to the wheel frame 39 at the lower end of the lever 38. During cutting, the lever 38 and its end rubber cylinder 391 will contact and press the car sound insulation pad before the cutting blade 35. After cutting, the rubber cylinder 391 will push the generated waste material to the discharge port 11 on the worktable 1.

[0028] Detailed implementation methods and principles: During operation, the operator lays the car sound insulation pad to be cut flat on the positioning groove 211 and base 31 of the positioning plate 21. After the sound insulation pad is positioned, the cylinder 22 of the pressing mechanism 2 is activated. The piston rod of the cylinder 22 extends downward, driving the pressure plate 26 on the connecting plate 24 to move down. The pressure plate 26 presses the car sound insulation pad onto the positioning plate 21. Next, cylinder 33 of the cutting and unloading mechanism 3 is activated. Its piston rod extends downward, driving the slider 34 to slide vertically downward along the slide rail 321 of the support frame 32. The cutting blade 35 fixed at the lower end of the slider 34 moves down with the slider 34. The slider 34 will press the pressure plate 361 on the guide rod 36, causing the guide rod 36 to move down. The spring 363 on the guide rod 36 is compressed. When the rubber pressure cylinder 391 at the lower end of the lever 38 contacts the surface of the sound insulation pad, it will drive the lever 38 to rotate. The torsion spring 382 on the rotating shaft 381 is twisted. The rubber pressure cylinder 391 presses the cutting end of the car sound insulation pad. After the cutting blade 35 continues to move down, it cuts the car sound insulation pad. After the cutting is completed, the piston rod of cylinder 33 begins to retract, driving the slider 34 and the cutting blade 35 to return to their original position. The pressure on the guide rod 36 gradually decreases. Under the elastic restoring force of the spring 363, the guide rod 36 returns to its original position. The lever 38 rotates in the opposite direction under the action of the torsion spring 382, ​​and the cut waste material is pushed to the discharge port 11 on the worktable 1 through the rubber pressure cylinder 391. Then the piston rod of cylinder 22 begins to retract, causing the connecting plate 24 and pressure plate 26 to move upward. Pressure plate 26 releases the cut car sound insulation pad, and the operator removes the car sound insulation pad from the positioning groove 211 of positioning plate 21. All components of the device are restored to their initial state, ready for the next cutting operation.

[0029] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cutting device for automotive sound insulation pads, characterized in that: Including workbench (1), pressing mechanism (2) and cutting blanking mechanism (3), the pressing mechanism (2) is arranged on one side of the workbench (1) and is used for fixing the automobile sound insulation pad to be cut; The cutting blanking mechanism (3) is arranged on the other side of the workbench (1) and is used for cutting and pressing the automobile sound insulation pad, and the cut waste is pushed away from the workbench (1) after cutting.

2. The cutting device of the automobile sound insulation mat according to claim 1, characterized in that: The pressing mechanism (2) includes a positioning plate (21), a cylinder (22) and a pressing plate (26), the positioning plate (21) is arranged on the workbench (1), the positioning plate (21) is uniformly provided with a plurality of positioning grooves (211), the cylinder (22) is arranged on the fixed frame (23) on the workbench (1), the lower end of the piston rod of the cylinder (22) is provided with a connecting plate (24), the connecting plate (24) is slidably connected with the fixed frame (23) through a sliding rod (25), and the connecting plate (24) is provided with a pressing plate (26) corresponding to the positioning groove (211).

3. The cutting device of claim 2, wherein: The cutting blanking mechanism (3) includes a cylinder (33), a cutting knife (35), a guide rod (36), a push rod (38), a torsional spring (382) and a rubber pressing cylinder (391), the workbench (1) is provided with a base (31) corresponding to the positioning groove (211), each base (31) is provided with a support frame (32), and the top of each support frame (32) is provided with a cylinder (33).

4. The cutting device of claim 2, wherein: The lower end of the piston rod of the cylinder (33) is provided with a sliding block (34) slidably connected with a sliding rail (321) on the support frame (32), the cutting knife (35) is arranged at the lower end of the sliding block (34), the guide rod (36) is slidably connected with a support plate (37) on the support frame (32), the lower end of the guide rod (36) is provided with a baffle disc (362), and the upper end of the guide rod (36) is provided with a pressing disc (361), the lower end of the baffle disc (362) is provided with a fixed block (3621), a spring (363) is sleeved on the guide rod (36) and located between the pressing disc (361) and the support plate (37), the upper end of the push rod (38) is rotatably connected with a mounting groove (3622) in the fixed block (3621) through a rotating shaft (381), the fixed block (3621) is provided with an arc-shaped baffle (3623) on one side of the mounting groove (3622), the torsional spring (382) is sleeved on the rotating shaft (381) and connected with the fixed block (3621) at one end, and the other end of the torsional spring (382) is connected with the rotating shaft (381), and the rubber pressing cylinder (391) is rotatably connected with the lower end of the push rod (38).

5. The cutting device of an automobile sound insulation mat of claim 2, characterized in that: The fixed frame (23) is a "n" shaped structure, and the opening thereof faces downward.

6. The cutting device of an automobile sound insulation mat of claim 2, characterized in that: The cylinder (22) is provided with two and symmetrically arranged on both sides of the fixed frame (23).

7. The cutting device of claim 3, wherein: the cutting device is a cutting device for cutting a soundproofing mat for a vehicle. The sliding rod (25) is provided with a plurality of and uniformly arranged on the fixed frame (23).

8. The cutting device of an automobile sound insulation mat of claim 3, characterized in that: The support frame (32) is a "Z" shaped structure.

9. The cutting device of claim 3, wherein: the cutting device is a cutting device for cutting a soundproofing mat for a vehicle. The rubber pressing cylinder (391) is connected with a wheel frame (39) on the push rod (38). The workbench (1) is provided with a blanking port (11) on the side surface of each base (31).

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