A punching device for a horn paper cone

Abstract

The utility model discloses a kind of punching device for loudspeaker paper bowl, including rack, hot-pressing forming mechanism is equipped on the rack, further including rotation setting in rack's lifting rod, with the lifting rod transmission connection's transfer frame, fixedly equipped in the rack's punching table, be equipped in the rack and the output end with the transmission connection's drive component of transfer frame;The transfer frame can rotate relative to the lifting rod, the transfer frame is also fixedly provided with transfer tray and punching disc, and the transfer tray can reciprocate between the hot-pressing forming mechanism and the punching table. The present application can realize the loudspeaker paper bowl from hot-pressing forming mechanism extraction, and after being placed into punching mechanism, without accurate centering, it can be directly punched, and the effect of not appearing larger error.

Description

Technical Field

[0001] This application relates to the field of paper cone manufacturing, and in particular to a perforation device for speaker paper cones. Background Technology

[0002] A loudspeaker is a device that converts electrical energy into sound. When different electronic energies are transmitted to the coil, the coil generates an energy that interacts with the magnetic field of the magnet. This interaction causes the cone to vibrate. Because the electronic energy changes constantly, the loudspeaker coil will move forward or backward, and the loudspeaker cone will move accordingly. These movements cause changes in the density of the air, thus producing sound. The loudspeaker cone is an essential component in the overall manufacturing process of a loudspeaker.

[0003] The preparation of speaker cones often involves several stages. First, the pulp is extracted and pre-compacted. Then, it is pressed into shape using a thermoforming mechanism. After the cone is formed, it needs to be perforated. Since it is not possible to directly perforate the cone within the thermoforming mechanism, the formed cone needs to be removed from the thermoforming mechanism and placed on a perforation mechanism for perforation.

[0004] Since each pressing produces many speaker cones, and these cones are connected as one unit, the connected cones need to be precisely aligned on the punching mechanism before holes can be punched on them. Otherwise, the holes punched on each cone will not correspond to each other, resulting in a large deviation. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a punching device for speaker cones. This device can take the speaker cone out of the thermoforming mechanism and put it into the punching mechanism, and punch holes directly without precise alignment, without large errors.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A punching device for speaker cones includes a frame, a thermoforming mechanism mounted on the frame, a lifting rod rotatably mounted on the frame, a transfer frame pulverizedly connected to the lifting rod, a punching table fixedly mounted on the frame, and a drive assembly mounted on the frame with its output end pulverizedly connected to the transfer frame. The transfer frame is rotatable relative to the lifting rod, and the transfer frame is also fixedly provided with a transfer plate and a punching plate. The transfer plate is reciprocating between the thermoforming mechanism and the punching table.

[0008] Preferably, the frame is provided with a guide rod, the axis of which is parallel to the axis of the lifting rod, the guide rod passes through the transfer frame, and the transfer frame can move along the axis of the guide rod.

[0009] Preferably, the drive assembly includes a drive member and a transmission wheel, the output end of the drive member meshes with the transmission wheel, the transmission wheel is rotatable relative to the lifting rod, and the axis of the transmission wheel and the axis of the lifting rod are collinear.

[0010] Preferably, the punching table has multiple cutting holes, and the punching disc is provided with cutting parts that correspond one-to-one with the number of cutting holes. The end of the cutting part facing the punching disc also has an annular blade, which is adapted to the cutting holes.

[0011] Preferably, the cutting element is fitted with a pressing sleeve, the bottom end of which is lower than the annular blade, and a reset elastic element is connected between the pressing sleeve and the punching disc.

[0012] Preferably, the pressing sleeve is further fixed with an anti-blocking protrusion, one end of which passes through the cutting element and is located inside the ring of the annular blade.

[0013] Preferably, the lower end of the anti-blocking protrusion is lower than the lower end of the annular blade, and the lower end of the anti-blocking protrusion is higher than the lower end of the pressing sleeve.

[0014] Preferably, the lower end of the pressing sleeve has a first arc surface, and the cutting hole has a second arc surface, the arc of the first arc surface and the arc of the second arc surface are the same.

[0015] Preferably, there is a gap between the inner wall of the pressing sleeve and the annular blade.

[0016] Preferably, the frame is provided with a material discharge trough and a storage trough, the punching plate is provided with a storage suction cup, and the punching plate can reciprocate above the material discharge trough and the storage trough.

[0017] In summary, this utility model has the following beneficial technical effects:

[0018] 1. The lifting rod enables the transfer frame to rise and fall, and the drive assembly allows the transfer frame to rotate. Since the transfer plate and the punching plate are fixed to the transfer frame, they rotate synchronously when the transfer frame rotates. This achieves the following: ① When the transfer plate is directly above the speaker diaphragm in the thermoforming mechanism, the punching plate is also directly above the punching table; ② When the transfer frame descends, the transfer plate can pick up the speaker diaphragm in the thermoforming mechanism, and at the same time, the cutting part on the punching plate will cut the speaker diaphragm on the punching table. This allows for direct punching without precise alignment, minimizing errors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device.

[0020] Figure 2 This is a partial structural diagram of the device.

[0021] Figure 3 This is a schematic diagram of the drilling platform.

[0022] Figure 4 This is a schematic diagram of the perforated disc.

[0023] Figure 5 yes Figure 4 A magnified structural diagram of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Hot pressing forming mechanism; 12. Punching table; 121. Cutting hole; 1211. Second arc surface; 13. Material drop chute; 14. Storage chute; 2. Lifting rod; 21. Guide rod; 3. Transfer frame; 31. Transfer plate; 32. Punching plate; 321. Cutting part; 3211. Ring blade; 322. Pressing sleeve; 3221. Anti-blocking protrusion; 3222. First arc surface; 323. Reset elastic element; 324. Storage suction cup; 4. Drive assembly; 41. Drive element; 42. Transmission wheel. Detailed Implementation

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.

[0027] This application discloses a punching device for speaker cones.

[0028] Reference Figure 1 A punching device for speaker cones includes a frame 1 and a hot pressing forming mechanism 11 disposed on the frame 1. The hot pressing forming mechanism 11 is prior art and will not be described in detail.

[0029] Reference Figure 1 and Figure 2The drilling device also includes a lifting rod 2, a transfer frame 3, a guide rod 21, and a drive assembly 4. The lifting rod 2 is rotatably mounted on the frame 1, and a motor (not shown in the figure) is also installed inside the frame 1. The output end of the motor is fixedly connected to the lifting rod 2, and the motor can drive the lifting rod 2 to rotate. The transfer frame 3 is connected to the lifting rod 2 by transmission, specifically by screw drive. The guide rod 21 is connected to the drive assembly 4, and the axis of the guide rod 21 is parallel to the axis of the lifting rod 2. The guide rod 21 passes through the transfer frame 3. When the lifting rod 2 rotates, the transfer frame 3 can move up and down relative to the lifting rod 2 under the guidance of the guide rod 21, thereby realizing the lifting and lowering of the transfer frame 3.

[0030] Reference Figure 2 The drive assembly 4 includes a drive component 41 and two transmission wheels 42. The upper and lower ends of the guide rod 21 are fixedly connected to the two transmission wheels 42 respectively. The drive component 41 is also a motor, with its output end meshing with one of the transmission wheels 42. The axis of the transmission wheel 42 is collinear with the axis of the lifting rod 2. Driven by the drive component 41, the transmission wheel 42 can rotate relative to the lifting rod 2. Because the guide rod 21 is fixedly connected to the transmission wheel 42, when the transmission wheel 42 rotates, the guide rod 21 can rotate around the lifting rod 2.

[0031] Reference Figure 2 The guide rod 21 can push the transfer frame 3 to rotate relative to the lifting rod 2. When the drive component 41 drives the transfer frame 3 to rotate, the lifting rod 2 will also move to counteract the lifting and lowering caused by the screw drive on the transfer frame 3. The rotation of the lifting rod 2 and the rotation of the transmission wheel 42 cooperate with each other to keep the transfer frame 3 stable when it needs to rotate, and prevent large-scale lifting and lowering. How the lifting rod 2 and the transmission wheel 42 cooperate in the specific way is not the subject of this application. It can be achieved through linkage of the control system or by transmitting signals between the two motors. (The rest of the text is omitted as it is incomplete.)

[0032] Reference Figure 2 and Figure 3 The frame 1 is equipped with a material discharge chute 13, and a punching table 12 is fixed on the material discharge chute 13.

[0033] Reference Figure 2 and Figure 3 The transfer frame 3 is fixedly equipped with a transfer plate 31 and a punching plate 32. The transfer plate 31 can reciprocate between the hot pressing forming mechanism 11 and the punching table 12. The transfer plate 31 can transfer the pre-formed speaker paper cone in the hot pressing forming mechanism 11 to the punching table 12. The punching plate 32 can punch holes in the speaker paper cone on the punching table 12.

[0034] A storage trough 14 is provided adjacent to the material discharge trough 13, and the punching disc 32 can move back and forth above the material discharge trough 13 and the storage trough 14. The material discharge trough 13 is used to collect the scraps of speaker paper slabs produced by punching.

[0035] Reference Figure 4 The punching plate 32 is equipped with a storage suction cup 324. When the punching of the speaker cone paper is finished, the storage suction cup 324 can transfer the speaker cone paper that has been punched on the punching table 12 to the storage slot 14.

[0036] Reference Figures 3-5 The punching table 12 has multiple cutting holes 121, and in this application there are 6 holes. The punching disc 32 is provided with cutting parts 321 that correspond one-to-one with the number of cutting holes 121. There are also 6 cutting parts 321. The end of the cutting part 321 facing the punching disc 32 also has an annular blade 3211, which is adapted to the cutting hole 121.

[0037] Reference Figure 5 The cutting component 321 is fitted with a pressing sleeve 322. The bottom end of the pressing sleeve 322 is lower than the annular blade 3211. A reset elastic element 323 is connected between the pressing sleeve 322 and the punching disc 32. The reset elastic element 323 is a spring. The upper end of the reset elastic element 323 is fixedly connected to the lower surface of the punching disc 32, and the lower end of the reset elastic element 323 is fixedly connected to the upper surface of the pressing sleeve 322.

[0038] Reference Figure 5 The pressing sleeve 322 is also fixed with anti-blocking protrusions 3221. In this application, there are four anti-blocking protrusions 3221, which are evenly arranged circumferentially around the axis of the cutting member 321. The lower end of the anti-blocking protrusion 3221 passes through the cutting member 321 and is located inside the ring of the annular blade 3211. If the cut horn cone scraps get stuck in the annular blade 3211, the anti-blocking protrusions 3221 can clean the horn cone scraps inside the annular blade 3211.

[0039] Reference Figure 5 The lower end of the anti-blocking protrusion 3221 is lower than the lower end of the annular blade 3211, while the lower end of the anti-blocking protrusion 3221 is higher than the lower end of the pressing sleeve 322. There is a gap between the inner wall of the pressing sleeve 322 and the annular blade 3211. When the anti-blocking protrusion 3221 cleans the horn cone scraps from inside the annular blade 3211 into the pressing sleeve 322, the gap prevents the horn cone scraps from blocking the pressing sleeve 322.

[0040] Reference Figure 5 The lower end of the pressing sleeve 322 has a first arc surface 3222 and a cutting hole 121 (e.g., Figure 3 ) has a second arc surface 1211 (e.g. Figure 3The curvature of the first arc surface 3222 is the same as that of the second arc surface 1211. When the pressing sleeve 322 presses down on the speaker cone, the face-to-face contact can prevent the speaker cone from having too heavy an imprint.

[0041] The implementation principle of this embodiment is as follows: the lifting rod 2 rotates while the transmission wheel 42 remains stationary, which allows the transfer frame 3 to rise and fall. At the same time as the transmission wheel 42 rotates, the lifting rod 2 rotates in coordination, which allows the transfer frame 3 to rotate.

[0042] When the transfer plate 31 is located directly above the speaker paper cone in the hot pressing forming mechanism 11, the punching plate 32 is also located directly above the punching table 12.

[0043] When the transfer frame 3 descends, the transfer tray 31 can pick up the speaker paper cone in the hot pressing forming mechanism 11, and at the same time, the cutting piece 321 on the punching tray 32 will also cut the speaker paper cone on the punching table 12.

[0044] During the process of transferring the speaker paper cone in the hot pressing forming mechanism 11 to the punching table 12, the storage suction cup 324 of the punching plate 32 will also transfer the speaker paper cone that has been punched on the punching table 12 to the storage slot 14.

[0045] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, based on the technical solutions of this invention, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this invention. Therefore, the above specific embodiments and accompanying drawings are merely illustrative descriptions of the technical solutions of this invention and should not be considered as the entirety of this invention or as a limitation or restriction of the technical solutions of this invention. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A punching device for speaker cones, comprising a frame (1) and a thermoforming mechanism (11) disposed on the frame (1), characterized in that: It also includes a lifting rod (2) rotatably mounted on the frame (1), a transfer frame (3) driven by the lifting rod (2), a punching table (12) fixedly mounted on the frame (1), and a drive assembly (4) mounted on the frame (1) and whose output end is driven by the transfer frame (3); the transfer frame (3) can rotate relative to the lifting rod (2), and the transfer frame (3) is also fixedly mounted with a transfer disk (31) and a punching disk (32), and the transfer disk (31) can reciprocate between the hot pressing forming mechanism (11) and the punching table (12).

2. The punching device for speaker cones as described in claim 1, characterized in that: The frame (1) is provided with a guide rod (21), the axis of the guide rod (21) is parallel to the axis of the lifting rod (2), the guide rod (21) passes through the transfer frame (3), and the transfer frame (3) can move along the axis of the guide rod (21).

3. The punching device for a speaker cone as described in claim 2, characterized in that: The drive assembly (4) includes a drive member (41) and a transmission wheel (42). The output end of the drive member (41) meshes with the transmission wheel (42). The transmission wheel (42) is able to rotate relative to the lifting rod (2), and the axis of the transmission wheel (42) and the axis of the lifting rod (2) are collinear.

4. The punching device for speaker cones as described in claim 1, characterized in that: The punching table (12) has a plurality of cutting holes (121), and the punching disc (32) is provided with cutting parts (321) corresponding one-to-one with the number of cutting holes (121). The cutting part (321) facing the punching disc (32) also has an annular blade (3211), and the annular blade (3211) is adapted to the cutting holes (121).

5. A punching device for a speaker cone as described in claim 4, characterized in that: The cutting element (321) is fitted with a pressing sleeve (322), the bottom end of which is lower than the annular blade (3211), and a reset elastic element (323) is connected between the pressing sleeve (322) and the punching disc (32).

6. The punching device for a speaker cone as described in claim 5, characterized in that: The pressing sleeve (322) is also fixed with an anti-blocking protrusion (3221), one end of which passes through the cutting piece (321) and is located inside the ring of the annular blade (3211).

7. A punching device for a speaker cone as described in claim 6, characterized in that: The lower end of the anti-blocking protrusion (3221) is lower than the lower end of the annular blade (3211), and the lower end of the anti-blocking protrusion (3221) is higher than the lower end of the pressing sleeve (322).

8. A punching device for a speaker cone as described in any one of claims 5-7, characterized in that: The lower end of the pressing sleeve (322) has a first arc surface (3222), and the cutting hole (121) has a second arc surface (1211). The arc of the first arc surface (3222) is the same as the arc of the second arc surface (1211).

9. A punching device for a speaker cone as described in any one of claims 5-7, characterized in that: There is a gap between the inner wall of the pressing sleeve (322) and the annular blade (3211).

10. A punching device for a speaker cone as described in any one of claims 1-7, characterized in that: The frame (1) is provided with a material discharge chute (13) and a storage chute (14), and the punching plate (32) is provided with a storage suction cup (324). The punching plate (32) can move back and forth above the material discharge chute (13) and the storage chute (14).

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