Die trimming equipment for mobile phone loudspeaker

Abstract

The invention relates to the technical field of die trimming, and discloses die trimming equipment for a mobile phone loudspeaker, which comprises a path zooming mechanism, the path zooming mechanism comprises a second gear and a third gear, the second gear and the third gear are meshed with each other, the bottom of the second gear is meshed with a first rack, and the bottom of the second gear is meshed with a second rack; a supporting plate is installed at one end of the first rack, and the bottom of the third gear is connected with a second rack in an engaged mode. And the direction correcting mechanism comprises a transmission assembly, a rotating shaft is installed on the transmission assembly, a trimming knife is installed at the bottom of the rotating shaft, and the direction correcting mechanism further comprises a fourth gear and a half gear ring. According to the edge trimming device, the path, needing to be subjected to edge trimming, of the die is amplified by arranging the path zooming mechanism, the amplified path is operated and reflected on the die, operation is more convenient, when errors generated due to misoperation are reflected on the die, the influence is small, and improvement of precision is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of mold trimming, and in particular relates to a mold trimming device for a mobile phone speaker. Background Art

[0002] During the production process of mobile phone speakers, the diaphragms need to be produced using corresponding molds. Since mobile phone speakers are small in size, molds of corresponding sizes are also required when producing the diaphragms. In order to ensure the quality of the diaphragms, the precision requirements for the molds are also relatively high.

[0003] A Chinese patent with authorization announcement number CN212946945U discloses a trimming device for mold production. By setting a dust suction mechanism, the hard material guide pipe has adsorption capacity, so that the dust generated by trimming and grinding in the dust box is adsorbed through multiple dust suction hoods. By setting the dust box to be semi-closed, the dust can be fully adsorbed, thereby increasing the service life of the device, avoiding dust from affecting the workshop environment, and improving employee production safety; by setting a first motor to drive the base at the top of the first rotating shaft to rotate, thereby driving the mold at the top of the base to rotate, and cooperating with the trimming mechanism to evenly trim the mold, and by setting a pulley at the bottom of the base, the stability of the base rotation can be improved, thereby ensuring the trimming efficiency of the mold; by setting a first hydraulic cylinder to control the lifting and lowering of the first piston rod, thereby controlling the first grinding roller at one end of the driving mechanism to trim the top of the mold, and cooperating with the second grinding roller to trim the side of the mold, the mold can be evenly trimmed over a large range, thereby improving the trimming efficiency of the device.

[0004] However, this technical solution still has at least the following defects: although the trimming device in this solution can improve the trimming efficiency, it is difficult to apply to small-sized mobile phone speakers, which will cause inconvenience during operation, and due to the small size, when an operation error occurs, it is easy to damage the mold. In view of this, the present invention is specially proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a mold trimming device for a mobile phone speaker. By setting a path scaling mechanism, the path of the mold that needs to be trimmed is enlarged, and the enlarged path is operated and reflected on the mold, the operation is more convenient, and the error caused by operational errors has a smaller impact when reflected on the mold, which is beneficial to improving the accuracy; the direction of the trimming knife is corrected by setting a direction correction mechanism, so that it always keeps aligned with the mold when moving, thereby improving the quality of trimming and ensuring normal trimming at the arc position of the mold edge.

[0006] The technical solution adopted by the present invention to solve its technical problem is: A mold trimming device for a mobile phone speaker, comprising: A path scaling mechanism, the path scaling mechanism comprising a second gear and a third gear, the second gear and the third gear are meshed with each other, the bottom of the second gear is meshed with a first rack, one end of the first rack is mounted with a support plate, and the bottom of the third gear is meshed with a second rack; The distance ratio between the third gear and the support plate and the distal end of the second rack is the same as the diameter ratio between the second gear and the third gear; A direction correction mechanism, the direction correction mechanism includes a transmission assembly, a rotating shaft is installed on the transmission assembly, a trimming knife is installed at the bottom of the rotating shaft, the direction correction mechanism also includes a fourth gear and a half gear ring, the fourth gear is rotatably connected to the rotating shaft, and the transmission assembly is used to transmit the fourth gear and make the rotating shaft and the fourth gear rotate in opposite directions.

[0007] As a preferred embodiment of the present invention, a track guide mechanism is provided at the bottom of one end of the support plate, and the track guide mechanism includes a base, a rack is installed on the outer side of the base, one side of the rack is meshingly connected with a first gear, and the outer side of the base is meshingly connected with a roller, and a support shaft is installed at the bottom of the support plate, and the bottom of the support shaft is rotatably connected to the roller and the first gear. The track guide mechanism makes the running path of the support shaft always fit the outer side of the base through the rack and the base, and the outer shape of the base is adapted to the mold, so that the running path of the support shaft coincides with the mold after being scaled by the path scaling mechanism.

[0008] As a preferred embodiment of the present invention, a driving mechanism is provided on the top of the support plate, and the driving mechanism includes a sleeve and a transmission shaft. A synchronization component is provided between the sleeve and the transmission shaft, and the synchronization component is used to synchronize the rotation of the sleeve and the transmission shaft while maintaining a relative sliding function. The synchronization component includes a slide groove and a protrusion, and the slide groove is opened on the side wall of the sleeve, and the protrusion is fixedly installed at one end of the transmission shaft, and the protrusion is slidably connected to the transmission shaft.

[0009] As a preferred embodiment of the present invention, an outer shell is installed on the outside of the second gear and the third gear, a pressing assembly is provided at one end of the outer shell, the pressing assembly includes a cam and a pressure plate, one end of the cam is fixedly connected to the sleeve, the pressure plate is located at the bottom of the cam, and rotating plates are fixedly installed at both ends of the pressure plate, one end of the rotating plate is rotatably connected to the outer wall of the outer shell, and the pressing assembly is used to convert the rotational action of the driving mechanism into the pressing action of the pressure plate.

[0010] As a preferred embodiment of the present invention, an elastic reset mechanism is provided on the side of the outer shell, and the elastic reset mechanism includes a limit piece, a plug plate is movably inserted on the limit piece, a telescopic rod is fixedly installed on the top of the plug plate, the bottom of the telescopic rod is fixedly connected to the limit piece, a spring is movably sleeved on the telescopic rod, a stop column is fixedly installed on the plug plate, a groove is provided on the rotating plate, the stop column is slidably connected in the groove, and a connecting mechanism is installed at the bottom of the elastic reset mechanism, and the connecting mechanism is connected to the transmission assembly.

[0011] As a preferred embodiment of the present invention, the transmission assembly includes a first bevel gear, the top of the first bevel gear is meshedly connected with a second bevel gear, the second bevel gear is fixedly connected to the rotating shaft, the bottom of the first bevel gear is meshedly connected with a third bevel gear, the third bevel gear is movably sleeved on the rotating shaft, and the third bevel gear is fixedly connected to the fourth gear.

[0012] As a preferred embodiment of the present invention, the connecting mechanism includes a mounting plate, the end of the mounting plate is fixedly connected to the bottom of the plug plate, a mounting frame is fixedly installed on the side of the mounting plate, the first bevel gear is rotatably connected to one side of the mounting frame, and the bottom of the mounting plate is rotatably connected to the top of the rotating shaft.

[0013] As a preferred embodiment of the present invention, a base plate is fixedly mounted on one side of the base, the half-toothed ring is fixedly mounted on the top of the base plate, one end of the second rack is rotatably connected to the top of the base plate, and an installation groove is opened on the top of the base plate, and the installation groove is used to install the mold.

[0014] As a preferred embodiment of the present invention, a fixing mechanism for fixing the mold is provided on the base plate, and the fixing mechanism includes a clamping block, a sliding rod is fixedly installed on one end of the clamping block, one end of the sliding rod is movably plugged into the base plate, a push plate is fixedly installed on one end of the sliding rod, and a reset spring is installed on one side of the push plate.

[0015] As a preferred embodiment of the present invention, a connecting block is fixedly installed on the top of one end of the support plate, one end of the transmission shaft movably passes through the connecting block and extends to the outside, a handle is fixedly installed on one end of the transmission shaft, a fixing block is fixedly installed on one side of the outer shell, and the sleeve passes through the fixing block and is rotatably connected to it.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention enlarges the path of the mold that needs to be trimmed by setting a path scaling mechanism, and operates the enlarged path and reflects it on the mold, so the operation is more convenient, and the error caused by the operation error is less affected when it is reflected on the mold, which is conducive to improving the accuracy; The present invention corrects the direction of the trimming knife by arranging a direction correction mechanism so that the trimming knife always keeps a state of being aligned with the mold when moving, thereby improving the quality of trimming and ensuring that normal trimming can be performed at the arc position of the mold edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a mold trimming device for a mobile phone speaker of the present invention; Figure 2 This is a schematic diagram of the side structure of a mold trimming device for a mobile phone speaker of the present invention; Figure 3 It is a structural schematic diagram of the second gear and the third gear of the present invention; Figure 4 This is a structural schematic diagram of the support plate of the present invention; Figure 5 It is a structural schematic diagram of the transmission component of the present invention; Figure 6 It is a structural schematic diagram of the cam of the present invention; Figure 7 This is a schematic diagram of the structure of the half-toothed ring of the present invention; Figure 8 It is a structural schematic diagram of the card block of the present invention.

[0018] Reference numerals: 100, base; 101, rack; 102, first gear; 103, roller; 104, support shaft; 105, support plate; 200, first rack; 201, second gear; 202, third gear; 203, second rack; 204, outer shell; 300, mounting plate; 301, mounting frame; 302, first bevel gear; 303, second bevel gear; 304, rotating shaft; 305, third bevel gear; 306, fourth gear; 307, trimming knife; 308, half gear ring; 400, limiter; 401, plug plate; 402, telescopic rod; 403, spring; 404, stop column; 405, rotating plate; 406, groove; 407, pressure plate; 408, cam; 409, sleeve; 410, slide groove; 411, transmission shaft; 412, convex block; 413, fixing block; 414, connecting block; 415, handle; 500, base plate; 501, mounting groove; 502, push plate; 503, reset spring; 504, slide bar; 505, clamping block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0020] Example 1

[0021] like Figures 1 to 8 As shown, a mold trimming device for a mobile phone speaker includes: The path scaling mechanism includes a second gear 201 and a third gear 202, and the second gear 201 and the third gear 202 are meshed with each other, the bottom of the second gear 201 is meshed with a first rack 200, one end of the first rack 200 is mounted with a support plate 105, and the bottom of the third gear 202 is meshed with a second rack 203; The distance ratio between the third gear 202 and the support plate 105 and the distal end of the second rack 203 is the same as the diameter ratio between the second gear 201 and the third gear 202; The direction correction mechanism includes a transmission assembly, on which a rotating shaft 304 is installed, and a trimming knife 307 is installed at the bottom of the rotating shaft 304. The direction correction mechanism also includes a fourth gear 306 and a half gear ring 308. The fourth gear 306 is rotatably connected to the rotating shaft 304. The transmission assembly is used to transmit the fourth gear 306 and make the rotating shaft 304 and the fourth gear 306 rotate in opposite directions.

[0022] like Figure 1 , Figure 2 , Figure 4 As shown, in a specific embodiment, a track guide mechanism is provided at the bottom of one end of the support plate 105, and the track guide mechanism includes a base 100, a rack 101 is installed on the outer side of the base 100, one side of the rack 101 is meshingly connected with a first gear 102, and the outer side of the base 100 is meshingly connected with a roller 103, and a support shaft 104 is installed at the bottom of the support plate 105, and the bottom of the support shaft 104 is rotatably connected to the roller 103 and the first gear 102. The track guide mechanism makes the running path of the support shaft 104 always fit the outer side of the base 100 through the rack 101 and the base 100, and the outer shape of the base 100 is adapted to the mold, so that the running path of the support shaft 104 coincides with the mold after being scaled by the path scaling mechanism. In this setting, when the support shaft 104 moves along the outer edge of the base 100, the first gear 102 fits against the rack 101, and the roller 103 fits against the base 100. Under the joint action of the two, the support shaft 104 will not deviate while moving along the outer edge of the base 100, thereby improving the trimming accuracy.

[0023] like Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, further, a driving mechanism is provided on the top of the support plate 105, and the driving mechanism includes a sleeve 409 and a transmission shaft 411, and a synchronization component is provided between the sleeve 409 and the transmission shaft 411, and the synchronization component is used to synchronize the rotation of the sleeve 409 and the transmission shaft 411 while maintaining the function of relative sliding, and the synchronization component includes a slide 410 and a protrusion 412, the slide 410 is provided on the side wall of the sleeve 409, and the protrusion 412 is fixedly installed at one end of the transmission shaft 411, and the protrusion 412 is slidably connected to the transmission shaft 411. In this configuration, the sleeve 409 is driven to rotate through the protrusion 412 while the transmission shaft 411 rotates.

[0024] Example 2

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, in a specific embodiment, an outer shell 204 is installed outside the second gear 201 and the third gear 202, and a pressing assembly is provided at one end of the outer shell 204. The pressing assembly includes a cam 408 and a pressing plate 407. One end of the cam 408 is fixedly connected to a sleeve 409. The pressing plate 407 is located at the bottom of the cam 408, and a rotating plate 405 is fixedly installed at both ends of the pressing plate 407. One end of the rotating plate 405 is rotatably connected to the outer wall of the outer shell 204. The pressing assembly is used to convert the rotation action of the driving mechanism into the pressing action of the pressing plate 407. In this setting, the sleeve 409 drives the cam 408 to rotate, and the cam 408 presses the pressing plate 407 downward, thereby pressing the rotating plate 405 downward.

[0026] like Figure 1 , Figure 2 , Figure 6 As shown, further, an elastic reset mechanism is provided on the side of the outer shell 204, and the elastic reset mechanism includes a limiter 400, on which a plug plate 401 is movably plugged, a telescopic rod 402 is fixedly installed on the top of the plug plate 401, and the bottom of the telescopic rod 402 is fixedly connected to the limiter 400, and a spring 403 is movably sleeved on the telescopic rod 402, and a stopper 404 is fixedly installed on the plug plate 401, and a groove 406 is provided on the rotating plate 405, and the stopper 404 is slidably connected in the groove 406, and a connecting mechanism is installed at the bottom of the elastic reset mechanism, and the connecting mechanism is connected to the transmission assembly. In this setting, the rotating plate 405 is pressed downward, and drives the plug plate 401 to descend through the groove 406 and the stopper 404, and the plug plate 401 drives the transmission assembly to descend through the connecting mechanism. After the trimming is completed, the elastic force of the spring 403 drives the plug plate 401 to move up and reset.

[0027] like Figure 5 , Figure 7As shown, further, the transmission assembly includes a first bevel gear 302, the top of the first bevel gear 302 is meshedly connected with the second bevel gear 303, the second bevel gear 303 is fixedly connected to the rotating shaft 304, the bottom of the first bevel gear 302 is meshedly connected with the third bevel gear 305, the third bevel gear 305 is movably sleeved on the rotating shaft 304, and the third bevel gear 305 is fixedly connected to the fourth gear 306. In this arrangement, the trimming knife 307 trims along the surface of the mold. When it moves to the half-toothed ring 308, the fourth gear 306 rotates by meshing with the half-toothed ring 308, and drives the third bevel gear 305 to rotate. The third bevel gear 305 drives the first bevel gear 302 to rotate by meshing. The first bevel gear 302 drives the second bevel gear 303 to rotate by meshing. The second bevel gear 303 drives the rotating shaft 304 to rotate, thereby rotating the trimming knife 307. During the rotation process, the trimming knife 307 always keeps the blade direction perpendicular to the edge of the mold, so that the trimming knife 307 can also perform normal trimming at the end of the mold.

[0028] like Figure 5 , Figure 6 As shown, further, the connection mechanism includes a mounting plate 300, the end of the mounting plate 300 is fixedly connected to the bottom of the plug plate 401, a mounting frame 301 is fixedly installed on the side of the mounting plate 300, a first bevel gear 302 is rotatably connected to one side of the mounting frame 301, and the bottom of the mounting plate 300 is rotatably connected to the top of the rotating shaft 304. In this configuration, a damper can be installed between the mounting plate 300 and the rotating shaft 304 to increase the resistance of the rotating shaft 304 when rotating to ensure its stability.

[0029] Example 3

[0030] like Figure 5 , Figure 7 , Figure 8 As shown, in a specific embodiment, a base plate 500 is fixedly mounted on one side of the base 100, a half gear ring 308 is fixedly mounted on the top of the base plate 500, one end of the second rack 203 is rotatably connected to the top of the base plate 500, a mounting groove 501 is provided on the top of the base plate 500, the mounting groove 501 is used to mount the mold, and a fixing mechanism for fixing the mold is provided on the base plate 500, the fixing mechanism includes a clamping block 505, a slide bar 504 is fixedly mounted on one end of the clamping block 505, one end of the slide bar 504 is movably plugged on the base plate 500, a push plate 502 is fixedly mounted on one end of the slide bar 504, and a reset spring 503 is installed on one side of the push plate 502. In this setting, when trimming the mold, the mold is first placed in the mounting groove 501, the push plate 502 is driven to move by the reset spring 503, and then the clamping block 505 is driven to move by the slide bar 504, and at this time, the clamping block 505 fixes the position of the mold.

[0031] like Figure 6As shown, further, a connection block 414 is fixedly installed on the top of one end of the support plate 105, one end of the transmission shaft 411 movably passes through the connection block 414 and extends to the outside, a handle 415 is fixedly installed on one end of the transmission shaft 411, a fixing block 413 is fixedly installed on one side of the outer shell 204, and the sleeve 409 passes through the fixing block 413 and is rotatably connected thereto. In this configuration, the mold trimming device is controlled by controlling the handle 415 to trim the mold, and the operation is more convenient.

[0032] The implementation principle of the mold trimming device for a mobile phone speaker of this embodiment is as follows: when trimming the mold, first place the mold in the installation groove 501, drive the push plate 502 to move through the reset spring 503, and then drive the clamping block 505 to move through the slide bar 504, at this time, the clamping block 505 fixes the position of the mold; Hold the handle 415 and turn it to a vertical state. At this time, the handle 415 drives the transmission shaft 411 to rotate. The transmission shaft 411 rotates and drives the sleeve 409 to rotate through the protrusion 412. The sleeve 409 drives the cam 408 to rotate. The cam 408 presses the pressing plate 407 downward, thereby pressing the rotating plate 405 downward, and drives the inserting plate 401 to descend through the groove 406 and the stop column 404. The inserting plate 401 drives the transmission assembly to descend through the connecting mechanism, thereby causing the trimming knife 307 to descend and fit the top of the mold. At this time, the handle 415 is moved to move the roller 103 along the outer edge of the base 100. Since the distances between the positions of the outer edge of the base 100 and the positions of one end of the second rack 203 are different, when the roller 103 moves, it pulls the first rack 200 to move. The first rack 200 drives the second gear 201 to rotate by meshing. The second gear 201 drives the third gear 202 to rotate by meshing. The third gear 202 drives the outer shell 204 to move by meshing with the second rack 203, thereby moving the trimming knife 307. The distance ratio between the third gear 202 and the support plate 105 and the distal end of the second rack 203 is the same as the diameter ratio between the second gear 201 and the third gear 202, so that when the roller 103 is relatively displaced, the trimming knife 307 is relatively displaced according to the ratio, and based on this, the path of the trimming knife 307 and the path of the roller 103 are in a geometric scaling relationship, and the trimming knife 307 can be moved along the mold by controlling the path of the roller 103, and because the outer edge of the base 100 is relatively large, the operation is easier and the error is smaller; The trimming knife 307 performs trimming along the surface of the mold. When it moves to the half gear ring 308, the fourth gear 306 rotates by meshing with the half gear ring 308, and drives the third bevel gear 305 to rotate. The third bevel gear 305 drives the first bevel gear 302 to rotate by meshing. The first bevel gear 302 drives the second bevel gear 303 to rotate by meshing. The second bevel gear 303 drives the rotating shaft 304 to rotate, thereby rotating the trimming knife 307. During the rotation process, the trimming knife 307 always keeps the blade direction perpendicular to the edge of the mold, so that the trimming knife 307 can also perform normal trimming at the end of the mold. After the trimming is completed, the handle 415 is reset. At this time, the elastic force of the spring 403 drives the insert plate 401 to move upward, thereby driving the trimming knife 307 to move upward, and the mold can be taken out by opening the clamping block 505.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mold trimming device for a mobile phone speaker, characterized in that: include: A path scaling mechanism, the path scaling mechanism comprising a second gear (201) and a third gear (202), the second gear (201) and the third gear (202) being meshed with each other, the bottom of the second gear (201) being meshedly connected to a first rack (200), one end of the first rack (200) being mounted with a support plate (105), and the bottom of the third gear (202) being meshedly connected to a second rack (203); The distance ratio between the third gear (202) and the support plate (105) and the far end of the second rack (203) is the same as the diameter ratio between the second gear (201) and the third gear (202); A direction correction mechanism, the direction correction mechanism comprising a transmission assembly, a rotating shaft (304) being mounted on the transmission assembly, a trimming knife (307) being mounted at the bottom of the rotating shaft (304), the direction correction mechanism further comprising a fourth gear (306) and a half gear ring (308), the fourth gear (306) being rotatably connected to the rotating shaft (304), the transmission assembly being used to drive the fourth gear (306) and to make the rotating shaft (304) and the fourth gear (306) rotate in opposite directions.

2. The mold trimming device for a mobile phone speaker according to claim 1, characterized in that: A track guide mechanism is arranged at the bottom of one end of the support plate (105), and the track guide mechanism comprises a base (100), a rack (101) is installed on the outer side of the base (100), one side of the rack (101) is meshingly connected to a first gear (102), and the outer side of the base (100) is meshingly connected to a roller (103), and a support shaft (104) is installed at the bottom of the support plate (105), and the bottom of the support shaft (104) is rotatably connected to the roller (103) and the first gear (102). The track guide mechanism enables the running path of the support shaft (104) to always fit the outer side of the base (100) through the rack (101) and the base (100), and the outer shape of the base (100) is adapted to the mold, so that the running path of the support shaft (104) coincides with the mold after being scaled by the path scaling mechanism.

3. The mold trimming device for a mobile phone speaker according to claim 2, characterized in that: A driving mechanism is arranged on the top of the support plate (105), the driving mechanism comprising a sleeve (409) and a transmission shaft (411), a synchronization component is arranged between the sleeve (409) and the transmission shaft (411), the synchronization component is used to synchronize the rotation of the sleeve (409) and the transmission shaft (411) while maintaining a relative sliding function, the synchronization component comprising a slide groove (410) and a protrusion (412), the slide groove (410) is opened on the side wall of the sleeve (409), the protrusion (412) is fixedly mounted on one end of the transmission shaft (411), and the protrusion (412) is slidably connected to the transmission shaft (411).

4. The mold trimming device for a mobile phone speaker according to claim 3, characterized in that: An outer shell (204) is installed outside the second gear (201) and the third gear (202), and a pressing assembly is arranged at one end of the outer shell (204), the pressing assembly comprising a cam (408) and a pressing plate (407), one end of the cam (408) is fixedly connected to a sleeve (409), the pressing plate (407) is located at the bottom of the cam (408), and rotating plates (405) are fixedly installed at both ends of the pressing plate (407), one end of the rotating plate (405) is rotatably connected to the outer wall of the outer shell (204), and the pressing assembly is used to convert the rotation action of the driving mechanism into the pressing action of the pressing plate (407).

5. The mold trimming device for a mobile phone speaker according to claim 4, characterized in that: An elastic reset mechanism is arranged on the side of the outer shell (204), and the elastic reset mechanism comprises a limiter (400), a plug plate (401) is movably plugged into the limiter (400), a telescopic rod (402) is fixedly mounted on the top of the plug plate (401), the bottom of the telescopic rod (402) is fixedly connected to the limiter (400), a spring (403) is movably sleeved on the telescopic rod (402), a stop column (404) is fixedly mounted on the plug plate (401), a groove (406) is formed on the rotating plate (405), and the stop column (404) is slidably connected in the groove (406), and a connecting mechanism is arranged on the bottom of the elastic reset mechanism, and the connecting mechanism is connected to the transmission assembly.

6. The mold trimming device for a mobile phone speaker according to claim 5, characterized in that: The transmission assembly comprises a first bevel gear (302), the top of the first bevel gear (302) is meshedly connected with a second bevel gear (303), the second bevel gear (303) is fixedly connected to a rotating shaft (304), the bottom of the first bevel gear (302) is meshedly connected with a third bevel gear (305), the third bevel gear (305) is movably sleeved on the rotating shaft (304), and the third bevel gear (305) is fixedly connected to a fourth gear (306).

7. The mold trimming device for a mobile phone speaker according to claim 6, characterized in that: The connection mechanism comprises a mounting plate (300), the end of the mounting plate (300) being fixedly connected to the bottom of the plug plate (401), a mounting frame (301) being fixedly mounted on the side of the mounting plate (300), the first bevel gear (302) being rotatably connected to one side of the mounting frame (301), and the bottom of the mounting plate (300) being rotatably connected to the top of the rotating shaft (304).

8. The mold trimming device for a mobile phone speaker according to claim 7, characterized in that: A base plate (500) is fixedly mounted on one side of the base platform (100), the half gear ring (308) is fixedly mounted on the top of the base plate (500), one end of the second rack (203) is rotatably connected to the top of the base plate (500), and a mounting groove (501) is provided on the top of the base plate (500), and the mounting groove (501) is used to mount a mold.

9. The mold trimming device for a mobile phone speaker according to claim 8, characterized in that: The base plate (500) is provided with a fixing mechanism for fixing the mold, the fixing mechanism comprising a clamping block (505), one end of the clamping block (505) is fixedly mounted with a sliding rod (504), one end of the sliding rod (504) is movably plugged into the base plate (500), one end of the sliding rod (504) is fixedly mounted with a push plate (502), and one side of the push plate (502) is mounted with a reset spring (503).

10. The mold trimming device for a mobile phone speaker according to claim 9, characterized in that: A connecting block (414) is fixedly mounted on the top of one end of the support plate (105); one end of the transmission shaft (411) movably passes through the connecting block (414) and extends to the outside; a handle (415) is fixedly mounted on one end of the transmission shaft (411); a fixing block (413) is fixedly mounted on one side of the outer shell (204); and the sleeve (409) passes through the fixing block (413) and is rotatably connected thereto.

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