Mesh thermoforming device

Abstract

This utility model discloses a thermoforming device for speaker grilles, belonging to the field of speaker grille processing technology. The device includes: a preheated sheet material is transferred to a thermoforming mechanism by a gripping and transferring mechanism; a first pressing component presses down on the heating and forming mold, causing the sheet material to adhere to the mold and be formed along the outer contour of the mold. The heating and forming mold heats the sheet material, making it easier to shape, while the first pressing component shapes the sheet material along the mold. After thermoforming, a pushing and transferring mechanism pushes the sheet material backward along the heating and forming mold, onto a cooling and forming mold. Because the outer contour of the cooling and forming mold is consistent with that of the heating and forming mold, the shaped sheet material is not deformed during the movement of the sheet material, thus ensuring more accurate forming dimensions and enabling efficient and automated completion of the thermoforming process for speaker grilles.

Description

Technical Field

[0001] This utility model relates to the field of speaker grille processing technology, and in particular to a grille thermoforming device. Background Technology

[0002] A speaker grille is a mesh material that covers the speaker unit, primarily used to protect the speaker driver, prevent dust accumulation, enhance the speaker's appearance, and filter out sharp noises to some extent, improving sound quality and overall speaker performance. The thermoforming process for speaker grilles involves heating the material to a softened state, then using pressure to mold it into the desired shape, and finally cooling and solidifying it to fix the shape. This allows for the rapid and economical production of speaker grilles with excellent acoustic properties and complex shapes.

[0003] The main problems with existing speaker grille thermoforming equipment include low automation, resulting in low production efficiency, and the need for additional machining operations during the thermoforming process to achieve the required final dimensions. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a mesh plate thermoforming device that can efficiently and automatically complete the thermoforming process of speaker mesh plates, and the forming dimensions are accurate.

[0005] The stencil thermoforming apparatus according to an embodiment of the present invention includes: a frame; a feeding mechanism disposed at the front end of the frame and used for stacking stencils; a preheating mechanism disposed on the frame and located behind the feeding mechanism, used for preheating the stencils; a thermoforming mechanism disposed on the frame and located behind the preheating mechanism, the thermoforming mechanism including a heating forming mold disposed on the frame along a front-rear direction, a plurality of first pressing components disposed around the heating forming mold, the plurality of first pressing components being movable toward and away from the heating forming mold; and a cooling mechanism disposed on the frame for cooling. The cooling mechanism is located behind the thermoforming mechanism. It includes a cooling forming mold with an outer contour that matches the outer contour of the heating forming mold. Multiple second clamping components are arranged around the heating forming mold, and these components can move toward and away from the heating forming mold. A gripping and transferring mechanism is also included, which is movable on the frame and grips the sheet metal between the feeding mechanism, the preheating mechanism, and the thermoforming mechanism. A pushing and transferring mechanism is also included, which is movable on the frame and pushes the sheet metal from the thermoforming mechanism to the cooling mechanism, and pushes out the formed mesh from the cooling mechanism.

[0006] The mesh thermoforming apparatus according to this utility model embodiment has at least the following beneficial effects: After preheating, the sheet material is transferred to the thermoforming mechanism by the gripping and transferring mechanism. The first pressing component presses down towards the heating and forming mold, causing the sheet material to adhere to the heating and forming mold along its outer contour. The heating and forming mold heats the sheet material, making it easier to shape, while the first pressing component shapes the sheet material along the heating and forming mold. After thermoforming, the pushing and transferring mechanism pushes the sheet material backward along the heating and forming mold, onto the cooling and forming mold. Since the outer contour of the cooling and forming mold is consistent with that of the heating and forming mold, the shaped sheet material will not deform during the movement of the sheet material, thus ensuring more accurate forming dimensions and enabling efficient and automated completion of the thermoforming process for speaker mesh.

[0007] According to some embodiments of the present invention, the feeding mechanism includes a storage station, in which the plates are stacked in the vertical direction. The gripping and transferring mechanism includes a first guide rail and a gripping component. The first guide rail is arranged in the front-back direction, and the gripping component is slidably arranged on the first guide rail.

[0008] According to some embodiments of the present invention, the gripping component includes a first forward and backward moving mechanism, which is slidably mounted on a first guide rail. The first forward and backward moving mechanism is provided with an up and down moving mechanism, and the up and down moving mechanism is provided with a plurality of suction cups, all of which are positioned downwards.

[0009] According to some embodiments of the present invention, two gripping components are provided, one of which moves between the feeding mechanism and the preheating mechanism, and the other gripping component moves between the preheating mechanism and the thermoforming mechanism.

[0010] According to some embodiments of this utility model, multiple storage stations are arranged along the left and right direction. The multiple storage stations can be moved left and right on the frame. The storage stations are moved so that they are aligned with the gripping components, and the plates in each storage station are loaded sequentially.

[0011] According to some embodiments of the present invention, the preheating mechanism includes a first heating plate and a second heating plate. The first heating plate is arranged horizontally on the frame, and the second heating plate is arranged vertically above the first heating plate. The gripping and transferring mechanism transfers the plate in the feeding mechanism to the first heating plate, and the second heating plate moves downward to press the plate on the first heating plate for preheating.

[0012] According to some embodiments of this utility model, the circumferential surface of the heating forming mold is an arc surface, and five first pressing components are provided. All five first pressing components are perpendicular to the circumferential surface of the heating forming mold. One of the first pressing components is located directly above the heating forming mold, and the other four first pressing components are located at the upper left, lower left, upper right, and lower right of the heating forming mold, respectively. When the thermoforming mechanism thermoforms the sheet, the first pressing component directly above first presses down first, then the two first pressing components at the upper left and upper right press down simultaneously, and finally the first pressing components at the lower left and lower right press down simultaneously.

[0013] According to some embodiments of this utility model, the circumferential surface of the cooling forming mold is an arc surface, and five second pressing components are provided. All five second pressing components are perpendicular to the circumferential surface of the cooling forming mold. One of the second pressing components is located directly above the cooling forming mold, and the other four second pressing components are located at the upper left, lower left, upper right, and lower right of the cooling forming mold, respectively. When the cooling mechanism cools the plate, the second pressing component directly above first presses down, then the two second pressing components at the upper left and upper right press down simultaneously, and finally the second pressing components at the lower left and lower right press down simultaneously.

[0014] According to some embodiments of the present invention, the push-transfer mechanism includes a second guide rail, which is arranged on the frame along the front and rear sides, and a push component is movably arranged on the second guide rail.

[0015] According to some embodiments of the present invention, the pushing component includes a second forward and backward moving mechanism, which is slidably mounted on a second guide rail. The second forward and backward moving mechanism is provided with a left and right moving mechanism, and the left and right moving mechanism is provided with a pushing slider. The left and right moving mechanism drives the pushing slider to approach the heating forming mold and the cooling forming mold, so that the pushing slider abuts against the front end of the plate. Then, the forward and backward moving mechanism drives the plate to slide backward in the heating forming mold and the cooling forming mold.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of the stencil thermoforming device according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the crawling component;

[0020] Figure 3 yes Figure 1 Schematic diagram of the preheating mechanism;

[0021] Figure 4 yes Figure 1 Schematic diagram of the thermoforming mechanism;

[0022] Figure 5 yes Figure 4 Rear view;

[0023] Figure 6 yes Figure 1 Schematic diagram of the intermediate cooling mechanism;

[0024] Figure 7 yes Figure 1 A schematic diagram of the push mechanism.

[0025] Figure label:

[0026] 100 racks;

[0027] 200 feeding mechanisms; 210 storage stations;

[0028] Preheating mechanism 300; first heating plate 310; second heating plate 320;

[0029] Thermoforming mechanism 400; Heating forming mold 410; First clamping assembly 420;

[0030] Cooling mechanism 500; cooling forming mold 510; second clamping assembly 530;

[0031] Grasping and transferring mechanism 600; first guide rail 610; gripping component 620; first forward and backward moving mechanism 621; up and down moving mechanism 622; suction cup 623;

[0032] Push and transfer mechanism 700; second guide rail 710; push component 720; second forward and backward moving mechanism 721; left and right moving mechanism 722; push slider 723;

[0033] Board material 1. Detailed Implementation

[0034] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] refer to Figures 1 to 7 Describes a stencil thermoforming apparatus according to an embodiment of the present invention.

[0039] like Figures 1 to 7As shown, the stencil thermoforming apparatus according to an embodiment of the present invention includes: a frame 100; a feeding mechanism 200, which is disposed at the front end of the frame 100 and is used to stack sheet 1; a preheating mechanism 300, which is disposed on the frame 100 and located behind the feeding mechanism 200, and is used to preheat the sheet 1; a thermoforming mechanism 400, which is disposed on the frame 100 and located behind the preheating mechanism 300, and includes a heating forming mold 410, which is disposed on the frame 100 in a front-rear direction, and has a plurality of first pressing components 420 disposed around the heating forming mold 410, which can move toward and away from the heating forming mold 410; and a cooling mechanism 500, which is disposed on the frame 100. Above, a cooling mechanism 500 is located behind the thermoforming mechanism 400. The cooling mechanism 500 includes a cooling forming mold 510, the outer contour of which is consistent with the outer contour of the heating forming mold 410. A plurality of second clamping components 530 are provided on the periphery of the heating forming mold 410, and the plurality of second clamping components 530 can move toward and away from the heating forming mold 410. A gripping and transferring mechanism 600 is movably mounted on the frame 100. The gripping and transferring mechanism 600 grips the sheet metal 1 and moves it between the feeding mechanism 200, the preheating mechanism 300 and the thermoforming mechanism 400. A pushing and transferring mechanism 700 is movably mounted on the frame 100. The pushing and transferring mechanism 700 is used to push the sheet metal 1 on the thermoforming mechanism 400 to the cooling mechanism 500 and to push out the formed mesh plate on the cooling mechanism 500 for unloading.

[0040] like Figures 1 to 7As shown, the sheet material 1 to be processed is stacked vertically in the feeding mechanism 200. The gripping and transferring mechanism 600 grips the sheet material 1 in the feeding mechanism 200 and moves it backward, placing the sheet material 1 into the preheating mechanism 300. The preheating mechanism 300 preheats the sheet material 1. After preheating, the sheet material 1 is transferred by the gripping and transferring mechanism 600 to the thermoforming mechanism 400. The first pressing component 420 presses down towards the heating forming mold 410, causing the sheet material 1 to adhere to the heating forming mold 410 and be formed along the outer contour of the heating forming mold 410. The heating forming mold 410 heats the sheet material 1, making it easier to shape, while the first pressing component 420 shapes the sheet material 1 along the heating forming mold 410. After thermoforming, the push-transfer mechanism 700 pushes the sheet metal 1 backward along the heating forming mold 410 onto the cooling forming mold 510. Since the outer contour of the cooling forming mold 510 is consistent with the outer contour of the heating forming mold 410, the deformed sheet metal 1 will not be deformed during the movement of the sheet metal 1. When the sheet metal 1 moves to the cooling forming mold 510, the second pressing component 530 presses down towards the cooling forming mold 510, pressing the sheet metal 1 firmly onto the surface of the cooling forming mold 510. While maintaining the shape of the sheet metal 1, the sheet metal 1 is cooled by the cooling forming mold 510. After cooling is completed, the push-transfer mechanism 700 pushes the formed sheet metal 1 backward for unloading. Thus, this mesh thermoforming device can efficiently and automatically complete the thermoforming process of speaker mesh, and transfer the sheet metal 1 by axial pushing of the mold between thermoforming and cooling, avoiding deformation of the sheet metal 1 and making the forming dimensions more accurate.

[0041] It is conceivable that the heating forming mold 410 and the cooling forming mold 510 can achieve heating and cooling of the surface plate 1 by setting liquid cooling pipes inside.

[0042] like Figure 1 and Figure 2 As shown, the feeding mechanism 200 includes a storage station 210, in which sheet metal 1 is stacked vertically. The gripping and transferring mechanism 600 includes a first guide rail 610 and a gripping component 620. The first guide rail 610 is arranged in a front-to-back direction, and the gripping component 620 is slidably mounted on the first guide rail 610. The gripping component 620 includes a first front-to-back moving mechanism 621, which is slidably mounted on the first guide rail 610. The first front-to-back moving mechanism 621 is provided with a vertical moving mechanism 622, and the vertical moving mechanism 622 is provided with multiple suction cups 623, all of which are downwardly facing. There are two gripping components 620. One gripping component 620 moves between the feeding mechanism 200 and the preheating mechanism 300, and the other gripping component 620 moves between the preheating mechanism 300 and the thermoforming mechanism 400.

[0043] The foremost gripping mechanism picks up the sheet material 1 from the feeding mechanism 200 and moves it to the preheating mechanism 300, while the rearmost gripping mechanism simultaneously transfers the preheated sheet material 1 from the preheating mechanism 300 to the thermoforming mechanism 400. Thus, the two gripping components 620 can transfer the sheet material 1 synchronously, thereby further improving the processing efficiency of the sheet material 1.

[0044] like Figure 1 As shown, multiple storage stations 210 are arranged along the left-right direction. These storage stations 210 can be moved left and right on the frame 100. Moving the storage stations 210 aligns them with the gripping assembly 620, sequentially feeding the sheet metal 1 from each storage station 210. When all the sheet metal 1 from one set of storage stations 210 has been transferred to the preheating mechanism 300, multiple storage stations 210 simultaneously move left or right, aligning another set of storage stations 210 with the gripping assembly 620 to continue feeding the preheating mechanism 300. Simultaneously, sheet metal 1 can be re-stacked in the emptied storage stations 210, ensuring continuous operation of the equipment and further improving processing efficiency.

[0045] like Figure 3 As shown, the preheating mechanism 300 includes a first heating plate 310 and a second heating plate 320. The first heating plate 310 is arranged horizontally on the frame 100, and the second heating plate 320 is arranged vertically above the first heating plate 310. The gripping and transferring mechanism 600 transfers the plate 1 in the feeding mechanism 200 to the first heating plate 310, and the second heating plate 320 moves downward to press the plate 1 on the first heating plate 310 for preheating.

[0046] like Figure 4 and Figure 5 As shown, the circumferential surface of the heating forming mold 410 is an arc surface. Five first pressing components 420 are provided. All five first pressing components 420 are perpendicular to the circumferential surface of the heating forming mold 410. One of the first pressing components 420 is located directly above the heating forming mold 410. The other four first pressing components 420 are located at the upper left, lower left, upper right, and lower right of the heating forming mold 410, respectively. When the thermoforming mechanism 400 thermoforms the sheet 1, the first pressing component 420 directly above first presses down first. Then, the two first pressing components 420 at the upper left and upper right press down simultaneously. Finally, the first pressing components 420 at the lower left and lower right press down simultaneously.

[0047] like Figure 6As shown, the circumferential surface of the cooling forming mold 510 is an arc surface. Five second pressing components 530 are provided. All five second pressing components 530 are perpendicular to the circumferential surface of the cooling forming mold 510. One of the second pressing components 530 is located directly above the cooling forming mold 510. The other four second pressing components 530 are located at the upper left, lower left, upper right, and lower right of the cooling forming mold 510, respectively. When the cooling mechanism 500 cools the plate 1, the second pressing component 530 directly above first presses down, then the two second pressing components 530 at the upper left and upper right press down simultaneously, and finally the second pressing components 530 at the lower left and lower right press down simultaneously.

[0048] like Figure 1 , Figures 4 to 7 As shown, the push-transfer mechanism 700 includes a second guide rail 710, which is mounted on the frame 100 along the front-back direction. A push component 720 is movably mounted on the second guide rail 710. The push component 720 includes a second forward-backward moving mechanism 721, which is slidably mounted on the second guide rail 710. A left-right moving mechanism 722 is mounted on the second forward-backward moving mechanism 721. A push slider 723 is mounted on the left-right moving mechanism 722. The left-right moving mechanism 722 drives the push slider 723 to approach the heating forming mold 410 and the cooling forming mold 510, so that the push slider 723 abuts against the front end of the plate 1. Then, the forward-backward moving mechanism drives the plate 1 to slide backward in the heating forming mold 410 and the cooling forming mold 510. The push slider 723 is arc-shaped on the side facing the forming mold, and its shape matches the surface of the forming mold. The left and right moving mechanism 722 drives the push slider 723 to move towards the forming mold until the push slider 723 is in contact with the forming mold. The front and back moving mechanism drives the slider to move, thereby pushing the plate 1 to move along the axial direction of the forming mold.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stencil thermoforming apparatus, characterized in that, include: Rack (100); A feeding mechanism (200) is provided at the front end of the frame (100) and is used to stack the board (1). A preheating mechanism (300) is provided on the frame (100) and is located behind the feeding mechanism (200). The preheating mechanism (300) is used to preheat the plate (1). A thermoforming mechanism (400) is disposed on the frame (100) and located behind the preheating mechanism (300). The thermoforming mechanism (400) includes a heating forming mold (410), which is disposed on the frame (100) in the front-rear direction. A plurality of first clamping components (420) are disposed on the periphery of the heating forming mold (410), and the plurality of first clamping components (420) can move toward and away from the heating forming mold (410). A cooling mechanism (500) is disposed on the frame (100) and located behind the thermoforming mechanism (400). The cooling mechanism (500) includes a cooling forming mold (510), the outer contour of which is consistent with the outer contour of the heating forming mold (410). A plurality of second pressing components (530) are disposed on the periphery of the heating forming mold (410), and the plurality of second pressing components (530) are movable toward and away from the heating forming mold (410). A gripping and transferring mechanism (600) is movably mounted on the frame (100) and grips the sheet metal (1) and moves it between the feeding mechanism (200), the preheating mechanism (300) and the thermoforming mechanism (400). A push-transfer mechanism (700) is movably mounted on the frame (100). The push-transfer mechanism (700) is used to push the sheet material (1) on the thermoforming mechanism (400) to the cooling mechanism (500) and to push out the formed mesh plate on the cooling mechanism (500) for unloading.

2. The stencil thermoforming apparatus according to claim 1, characterized in that, The feeding mechanism (200) includes a storage station (210), in which the plate (1) is stacked in the storage station (210) along the vertical direction. The gripping and transferring mechanism (600) includes a first guide rail (610) and a gripping component (620). The first guide rail (610) is arranged in the front-back direction, and the gripping component (620) is slidably arranged on the first guide rail (610).

3. The stencil thermoforming apparatus according to claim 2, characterized in that, The gripping component (620) includes a first forward and backward moving mechanism (621), which is slidably mounted on the first guide rail (610). The first forward and backward moving mechanism (621) is provided with a vertical moving mechanism (622), and the vertical moving mechanism (622) is provided with a plurality of suction cups (623), all of which are arranged downward.

4. The stencil thermoforming apparatus according to claim 3, characterized in that, Two gripping components (620) are provided, one of which moves between the feeding mechanism (200) and the preheating mechanism (300), and the other gripping component (620) moves between the preheating mechanism (300) and the thermoforming mechanism (400).

5. The stencil thermoforming apparatus according to claim 2, characterized in that, Multiple storage stations (210) are arranged in the left-right direction. All storage stations (210) can be moved left and right on the frame (100). The storage stations (210) are moved so that they are aligned with the gripping component (620) to sequentially complete the loading of the board (1) in each storage station (210).

6. The stencil thermoforming apparatus according to claim 1, characterized in that, The preheating mechanism (300) includes a first heating plate (310) and a second heating plate (320). The first heating plate (310) is arranged horizontally on the frame (100), and the second heating plate (320) is arranged vertically above the first heating plate (310). The gripping and transferring mechanism (600) transfers the plate (1) in the feeding mechanism (200) to the first heating plate (310), and the second heating plate (320) moves downward to press the plate (1) on the first heating plate (310) for preheating.

7. The stencil thermoforming apparatus according to claim 1, characterized in that, The circumferential surface of the heating forming mold (410) is an arc surface. Five first pressing components (420) are provided. All five first pressing components (420) are perpendicular to the circumferential surface of the heating forming mold (410). One of the first pressing components (420) is located directly above the heating forming mold (410). The other four first pressing components (420) are located at the upper left, lower left, upper right, and lower right of the heating forming mold (410), respectively. When the thermoforming mechanism (400) thermoforms the sheet (1), the first pressing component (420) directly above first presses down first. Then, the two first pressing components (420) at the upper left and upper right press down simultaneously. Finally, the first pressing components (420) at the lower left and lower right press down simultaneously.

8. The stencil thermoforming apparatus according to claim 1, characterized in that, The circumferential surface of the cooling forming mold (510) is an arc surface. Five second pressing components (530) are provided. All five second pressing components (530) are perpendicular to the circumferential surface of the cooling forming mold (510). One of the second pressing components (530) is located directly above the cooling forming mold (510). The other four second pressing components (530) are located at the upper left, lower left, upper right, and lower right of the cooling forming mold (510), respectively. When the cooling mechanism (500) cools the plate (1), the second pressing component (530) directly above first presses down, then the two second pressing components (530) at the upper left and upper right press down simultaneously, and finally the second pressing components (530) at the lower left and lower right press down simultaneously.

9. The stencil thermoforming apparatus according to claim 1, characterized in that, The push-transfer mechanism (700) includes a second guide rail (710), which is arranged on the frame (100) along the front and rear sides. A push component (720) is movably arranged on the second guide rail (710).

10. The stencil thermoforming apparatus according to claim 9, characterized in that, The pushing component (720) includes a second forward and backward moving mechanism (721), which is slidably mounted on the second guide rail (710). The second forward and backward moving mechanism (721) is provided with a left and right moving mechanism (722), and the left and right moving mechanism (722) is provided with a pushing slider (723). The left and right moving mechanism (722) drives the pushing slider (723) to approach the heating forming mold (410) and the cooling forming mold (510), so that the pushing slider (723) abuts against the front end of the plate (1), and then the forward and backward moving mechanism drives the plate (1) to slide backward on the heating forming mold (410) and the cooling forming mold (510).

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