Stamping device for EVA foam sound-absorbing sheet for automobile

Abstract

The utility model relates to an EVA foam sound-absorbing sheet stamping device for an automobile, which belongs to the technical field of sound-absorbing sheet stamping and comprises a supporting seat, a template component arranged on the side surface of the supporting seat, a stamping component arranged on the side surface of the template component and a driving component arranged on the side surface of the supporting seat. The formwork assembly comprises a side baffle fixedly installed on the top of the supporting base and a fixing rod fixedly installed on the side face of the side baffle. According to the EVA foam sound absorption sheet stamping device for the automobile, by starting a driving motor, an output shaft of the driving motor rotates to drive a transmission wheel to rotate, the transmission wheel rotates to drive a conveying belt to move, and the conveying belt moves to drive EVA foam placed on the top of the conveying belt to be conveyed; the EVA foam is conveyed to the side face of the stamping plate under the cooperative limitation of the moving plate and the limiting plate, the pressure device is started to push the stamping plate to push the EVA foam to the stamping template for stamping, the stamping plate and the stamping template are separated after stamping is completed to form the sound absorption piece, and the sound absorption piece is driven by conveying to leave the device.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping of sound-absorbing sheets, and particularly relates to a stamping device for an EVA foam sound-absorbing sheet for automobiles. Background Technique

[0002] EVA foam is a new type of environmentally friendly plastic foaming material, which has good buffering, shock resistance, heat insulation, moisture resistance, chemical corrosion resistance and other advantages, and is non-toxic and non-water-absorbing. In the automotive industry, EVA foam is often used as a sound-absorbing material, and is processed into sound-absorbing sheets through a stamping process for sound insulation and sound absorption treatment inside the vehicle to improve the riding comfort and the sound insulation effect of the vehicle.

[0003] For the stamping process of EVA foam sound-absorbing sheets, there are special equipment and process designs. The currently commonly used stamping machine for processing EVA foam sound-absorbing sheets for automobiles includes a conveying device, an upper stamping mechanism and a lower stamping mechanism. The conveying device of this stamping machine can accurately convey the EVA foam material, and the upper stamping mechanism and the lower stamping mechanism work together to realize the efficient stamping and forming of the EVA foam material. This stamping method in which the upper and lower stamping mechanisms cooperate with each other cannot adjust the stamping thickness according to actual needs when in use, has low flexibility, and has low operation efficiency due to the large interval between the upper and lower stamping structures. Therefore, a stamping device for an EVA foam sound-absorbing sheet for automobiles is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a stamping device for an EVA foam sound-absorbing sheet for automobiles, which has the advantages of good flexibility and high operation efficiency, and solves the problem of low operation efficiency caused by the poor flexibility of the traditional upper and lower stamping structures.

[0005] To achieve the above-mentioned purposes of good flexibility and high operation efficiency, the utility model provides the following technical solution: A stamping device for an EVA foam sound-absorbing sheet for automobiles, including a support base, a template assembly arranged on the side of the support base, a stamping assembly arranged on the side of the template assembly, and a driving assembly arranged on the side of the support base.

[0006] Further, the template assembly includes a side baffle fixedly installed on the top of the support base, a fixing rod fixedly installed on the side of the side baffle, a stamping template fixedly installed on the side of the fixing rod, and a connecting seat fixedly installed on the side of the support base.

[0007] Further, the support base is of an I-shaped structure, limiting frames are fixedly installed on both sides of the side baffle, limiting plates are fixedly installed on the side of the limiting frame close to the stamping template, and an adjustment groove is formed on the side of the connecting seat.

[0008] Further, the adjusting baffle is of an L-shaped structure, and the bottom of the adjusting baffle is embedded inside the adjusting groove and is slidably connected to the inner side wall of the adjusting groove.

[0009] Further, the adjusting screw rod is horizontally hung through the adjusting baffle and is rotationally connected to the adjusting baffle by threads. One end of the adjusting screw rod passes through the adjusting groove and is embedded inside the connecting seat and is rotationally connected to the connecting seat.

[0010] Further, the stamping assembly includes an adjusting baffle movably connected to the side of the connecting seat, an adjusting screw rod movably connected inside the adjusting baffle, a pressure device fixedly installed on the side wall of the adjusting baffle, and a stamping plate fixedly installed on the side of the pressure device.

[0011] Further, adjusting frames are fixedly installed on both side surfaces of the adjusting baffle. Threaded through holes are provided inside the adjusting frames. A limit adjusting rod connected by threads is provided inside the threaded through holes. A moving plate is fixedly installed on the side surface of the limit adjusting rod close to the stamping plate.

[0012] Further, the driving assembly includes a plurality of fixing frames fixedly installed on the side of the connecting seat, a transmission wheel rotatably connected to the side of the fixing frame, a conveyor belt drivingly connected to the outside of the transmission wheel, and a driving motor fixedly installed on the side of the fixing frame.

[0013] Further, the output shaft of the driving motor horizontally penetrates through the fixing frame and is rotationally connected to the fixing frame. The side surface of the output shaft of the driving motor and the side surface of the transmission wheel are fixedly installed.

[0014] Compared with the prior art, the present utility model provides a stamping device for an automotive EVA foam sound-absorbing sheet, and has the following beneficial effects:

[0015] 1. For the stamping device for the automotive EVA foam sound-absorbing sheet, by starting the driving motor, the rotation of the output shaft of the driving motor drives the rotation of the transmission wheel. The rotation of the transmission wheel drives the movement of the conveyor belt. The movement of the conveyor belt drives the EVA foam placed on the top of the conveyor belt to be conveyed. The EVA foam moves to the side of the stamping plate under the collaborative limitation of the moving plate and the limiting plate. The pressure device is started to push the stamping plate to push the EVA foam towards the stamping template for stamping. After stamping is completed, the stamping plate and the stamping template are separated. At this time, the EVA foam sound-absorbing sheet falls onto the top of the conveyor belt again and leaves the device under the drive of the conveyor belt.

[0016] 2. The stamping device for the EVA foam sound-absorbing sheet used in automobiles adjusts the adjusting screw. While the adjusting screw rotates in the connecting seat, since the bottom of the adjusting baffle is limited by the adjusting groove, the thread of the adjusting screw drives the bottom of the adjusting baffle to move inside the adjusting groove. The movement of the adjusting baffle drives the horizontal position movement of the pressure device and the stamping plate, changing the relative position between the stamping plate and the stamping template, thereby changing the thickness that the EVA foam sound-absorbing sheet will form during stamping, and further solving the problem of low operation efficiency caused by the poor flexibility of the traditional up-and-down stamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a left-side perspective view of the structure of the present invention;

[0018] Figure 2 It is a sectional view of the structure of the present invention;

[0019] Figure 3 It is a right-side perspective view of the structure of the present invention.

[0020] In the figure: 1. Support base; 2. Template assembly; 21. Side baffle; 22. Fixed rod; 23. Stamping template; 24. Connecting seat; 25. Limiting frame; 26. Limiting plate; 27. Adjusting groove; 3. Stamping assembly; 31. Adjusting baffle; 32. Adjusting screw; 33. Pressure device; 34. Stamping plate; 35. Adjusting frame; 36. Adjusting rod; 37. Moving plate; 4. Driving assembly; 41. Fixed frame; 42. Transmission wheel; 43. Conveyor belt; 44. Driving motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 3 , in this embodiment, a stamping device for an EVA foam sound-absorbing sheet used in automobiles includes a support base 1, a template assembly 2 arranged on the side of the support base 1, a stamping assembly 3 arranged on the side of the template assembly 2, and a driving assembly 4 arranged on the side of the support base 1.

[0023] The template assembly 2 is fixed by setting the support base 1, the driving assembly 4 drives the EVA foam to move, and the stamping assembly 3 cooperates with the template assembly 2 to stamp the EVA foam driven by the driving assembly 4.

[0024] In this embodiment, the template assembly 2 includes a side baffle 21 fixedly installed on the top of the support base 1, a fixing rod 22 fixedly installed on the side of the side baffle 21, a stamping template 23 fixedly installed on the side of the fixing rod 22, and a connecting seat 24 fixedly installed on the side of the support base 1.

[0025] The fixing rod 22 is arranged on the side of the side baffle 21 to fix the stamping template 23, and the connecting seat 24 defines the relative positions of the stamping assembly 3 and the stamping template 23 to ensure the stamping effect.

[0026] In this embodiment, the support base 1 is of an I-shaped structure. Limiting frames 25 are fixedly installed on both sides of the side baffle 21. A limiting plate 26 is fixedly installed on the side of the limiting frame 25 close to the stamping template 23, and an adjustment groove 27 is formed on the side of the connecting seat 24.

[0027] The limiting frame 25 and the limiting plate 26 are arranged on the side of the side baffle 21 to limit the movement of the EVA foam conveyed by the top of the driving assembly 4 to a specified position for stamping.

[0028] In this embodiment, the stamping assembly 3 includes an adjustment baffle 31 movably connected to the side of the connecting seat 24, an adjustment screw 32 movably connected inside the adjustment baffle 31, a pressure device 33 fixedly installed on the side wall of the adjustment baffle 31, and a stamping plate 34 fixedly installed on the side of the pressure device 33.

[0029] The adjustment baffle 31 is arranged to cooperate with the adjustment screw 32 to control the position of the adjustment baffle 31, and the pressure device 33 pushes the stamping plate 34 to stamp the EVA foam.

[0030] In this embodiment, the adjustment baffle 31 is of an L-shaped structure. The bottom of the adjustment baffle 31 is embedded inside the adjustment groove 27 and is slidably connected to the inner side wall of the adjustment groove 27.

[0031] The L-shaped adjustment baffle 31 is arranged to move inside the adjustment groove 27 on the side of the connecting seat 24, so that the position of the adjustment baffle 31 inside the connecting seat 24 can be controlled according to actual needs, thereby controlling the stamping thickness.

[0032] In this embodiment, the adjustment screw 32 horizontally passes through the adjustment baffle 31 and is rotationally connected to the adjustment baffle 31 by threads. One end of the adjustment screw 32 passes through the adjustment groove 27 and is embedded inside the connecting seat 24 and is rotationally connected to the connecting seat 24.

[0033] The adjustment screw 32 is arranged to be threadedly connected inside the adjustment baffle 31 and is rotationally connected to the connecting seat 24 at the same time. Rotating the adjustment screw 32 can drive the position of the adjustment baffle 31 in the adjustment groove 27, thereby achieving the purpose of controlling the stamping thickness.

[0034] In this embodiment, adjusting frames 35 are fixedly installed on both side surfaces of the adjusting baffle 31. Threaded through holes are provided inside the adjusting frames 35, and limit adjusting rods 36 connected by threads are provided inside the threaded through holes. A moving plate 37 is fixedly installed on the side surface of the limit adjusting rod 36 close to the stamping plate 34.

[0035] An adjusting frame 35 and an adjusting rod 36 are arranged on the side surface of the adjusting baffle 31 to cooperate and push the position of the moving plate 37, so that after the position of the adjusting baffle 31 changes, the moving plate 37 can also be adjusted in real time, thereby ensuring that the EVA foam can accurately reach the position of the stamping plate 34 vertically for stamping.

[0036] In this embodiment, the driving assembly 4 includes a plurality of fixing frames 41 fixedly installed on the side surface of the connecting seat 24, a transmission wheel 42 rotatably connected to the side surface of the fixing frame 41, a conveyor belt 43 transmission-connected to the outside of the transmission wheel 42, and a driving motor 44 fixedly installed on the side surface of the fixing frame 41.

[0037] A fixing frame 41 is arranged on the side surface of the connecting seat 24 to fix the transmission wheel 42, and the driving motor 44 drives the transmission wheel 42 to rotate, thereby driving the conveyor belt 43 to move, so that the conveyor belt 43 can drive the EVA foam above to move and be transported.

[0038] It should be noted that protrusions for increasing friction are provided on the surface of the conveyor belt 43 to avoid relative movement of the EVA foam on the top of the conveyor belt 43 to the greatest extent.

[0039] In this embodiment, the output shaft of the driving motor 44 horizontally penetrates the fixing frame 41 and is rotatably connected to the fixing frame 41, and the side surface of the output shaft of the driving motor 44 and the side surface of the transmission wheel 42 are fixedly installed.

[0040] The driving motor 44 is arranged on the side surface of the fixing frame 41 to provide power for the transmission wheel 42, thereby realizing the transportation of the EVA foam.

[0041] The working principle of the above embodiment is as follows:

[0042] By starting the driving motor 44, the output shaft of the driving motor 44 rotates to drive the rotation of the transmission wheel 43, the rotation of the transmission wheel 43 drives the movement of the conveyor belt 43, the movement of the conveyor belt 43 drives the EVA foam placed on the top of the conveyor belt 43 to be transported. The EVA foam reaches the side of the stamping plate 34 under the cooperative limitation of the moving plate 37 and the limiting plate 26. The pressure device 33 is started to push the stamping plate 34 to push the EVA foam towards the stamping template 23 for stamping. After stamping, the stamping plate 34 and the stamping template 23 are separated. At this time, the EVA foam sound-absorbing sheet falls onto the top of the conveyor belt 43 again and leaves the device under the drive of the conveyor belt 43.

[0043] In addition, by rotating the adjusting screw 32, while the adjusting screw 32 rotates in the connecting seat 24, since the bottom of the adjusting baffle 31 is limited by the adjusting groove 27, the thread of the adjusting screw 32 drives the bottom of the adjusting baffle 31 to move inside the adjusting groove 27. The movement of the adjusting baffle 31 drives the horizontal positions of the pressure device 33 and the stamping plate 34 to move, and the relative positions of the stamping plate 34 and the stamping template 23 change, thereby changing the thickness that the EVA foam sound-absorbing sheet will form during the stamping process, and further solving the problem of low operation efficiency caused by the poor flexibility of the traditional up-and-down stamping structure.

[0044] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed electrical connection technologies will not be elaborated in the text.

[0045] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A punching device for an EVA foam sound-absorbing sheet for automobiles, characterized in that: It comprises a support seat (1), a template assembly (2) arranged on the side of the support seat (1), a punching assembly (3) arranged on the side of the template assembly (2), and a driving assembly (4) arranged on the side of the support seat (1); The template assembly (2) comprises a side baffle (21) fixedly mounted on the top of the support seat (1), a fixing rod (22) fixedly mounted on the side of the side baffle (21), a stamping template (23) fixedly mounted on the side of the fixing rod (22), and a connecting seat (24) fixedly mounted on the side of the support seat (1).

2. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 1, characterized in that: The punching assembly (3) comprises an adjusting baffle (31) movably connected to the side of the connecting seat (24), an adjusting screw (32) movably connected inside the adjusting baffle (31), a presser (33) fixedly mounted on the side wall of the adjusting baffle (31), and a punching plate (34) fixedly mounted on the side of the presser (33).

3. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 1, characterized in that: The driving assembly (4) comprises a plurality of fixing frames (41) fixedly mounted on the side of the connecting seat (24), a transmission wheel (42) rotatably connected to the side of the fixing frame (41), a conveyor belt (43) transmission-connected to the outside of the transmission wheel (42), and a driving motor (44) fixedly mounted on the side of the fixing frame (41).

4. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 1, characterized in that: The support seat (1) is an I-shaped structure, and the side surfaces of the side baffles (21) are fixedly mounted with limit frames (25), the side surfaces of the limit frames (25) close to the punching template (23) are provided with fixedly mounted limit plates (26), and the side surfaces of the connecting seat (24) are provided with adjustment grooves (27).

5. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 2, characterized in that: The adjusting baffle (31) is an L-shaped structure, and the bottom of the adjusting baffle (31) is embedded in the adjusting groove (27) and is slidably connected to the inner wall of the adjusting groove (27).

6. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 2, characterized in that: The adjusting screw (32) is laterally hung through the adjusting baffle (31) and is rotationally connected to the adjusting baffle (31) via a thread; one end of the adjusting screw (32) passes through the adjusting groove (27) and is embedded in the connecting seat (24) and is rotationally connected to the connecting seat (24).

7. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 2, characterized in that: Adjustment frames (35) are fixedly mounted on both sides of the adjustment baffle (31), a threaded through hole is arranged inside the adjustment frame (35), a threaded limit adjustment rod (36) is arranged inside the threaded through hole, and a movable plate (37) is fixedly mounted on the side of the limit adjustment rod (36) close to the stamping plate (34).

8. The punching device for an EVA foam sound-absorbing sheet for automobile according to claim 3, characterized in that: The output shaft of the driving motor (44) transversely penetrates the fixing frame (41) and is rotationally connected to the fixing frame (41), and the side surface of the output shaft of the driving motor (44) and the side surface of the transmission wheel (42) are fixedly mounted.

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