Ultrasonic paper cup forming servo driving mechanism

Abstract

The utility model belongs to the field of paper cup machines, and provides an ultrasonic paper cup forming servo driving mechanism which comprises a rack platen, an upper layer assembly and a lower layer assembly. Wherein the upper-layer assembly comprises a forming die core connected to the rack bedplate and an ultrasonic die head capable of being close to or away from the forming die core, and further comprises a rotating shaft connected to the rack bedplate, and a holding clamp and a mouth tongue strip which are connected to the rotating shaft respectively; the lower layer assembly comprises a composite cam, a first roller in transmission connection with the holding clamp and a second roller in transmission connection with the mouth tongue strip, and the composite cam forms different guide paths matched with the first roller and the second roller so that the holding clamp and the mouth tongue strip can be matched with the forming die core and the ultrasonic die head according to the preset time condition.

Description

Technical Field

[0001] This application belongs to the field of paper cup machines, and particularly relates to an ultrasonic paper cup forming servo drive mechanism. Background Art

[0002] With the rapid development of society and the continuous improvement of people's living standards, environmental protection and convenience have become important pursuits in modern life. Paper cups, as a kind of safe, hygienic, light and convenient paper container, are widely used in various fields such as public places, restaurants, and families. When preparing paper cups, a paper cup machine needs to first tightly wrap a paper cup die-cut sample around a forming mandrel and then weld it into shape through an ultrasonic die head. However, due to the complex design of the drive mechanism used to tightly wrap the paper cup die-cut sample around the forming mandrel in traditional paper cup machines, multiple servo motors often need to cooperate with each other to achieve this purpose, which results in low cooperation efficiency between the various parts of the paper cup machine and seriously restricts the production efficiency of the paper cup machine. Therefore, it is necessary to solve the above technical problems. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide an ultrasonic paper cup forming servo drive mechanism to solve the technical problem of the complex design of the drive structure of the paper cup machine in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide an ultrasonic paper cup forming servo drive mechanism, including:

[0005] A frame table board;

[0006] An upper layer component, including a forming mandrel connected to the frame table board and an ultrasonic die head that can approach or move away from the forming mandrel, and further including a rotating shaft connected to the frame table board and a clamp and a tongue strip respectively connected to the rotating shaft. The clamp is used to rotate around the axis of the rotating shaft to tightly hold or disengage from the forming mandrel, and the tongue strip is used to move radially along the rotating shaft and can approach or move away from the forming mandrel;

[0007] A lower layer component, including a compound cam, a first roller drivingly connected to the clamp, and a second roller drivingly connected to the tongue strip. The compound cam forms different guiding paths cooperating with the first roller and the second roller so that the clamp and the tongue strip can cooperate with the forming mandrel and the ultrasonic die head under preset time conditions.

[0008] Optionally, the compound cam includes a disk-shaped cam and a groove-shaped cam recessed from the disk-shaped cam;

[0009] The groove-shaped cam is drivingly connected to the first roller through its groove wall, and the disk-shaped cam is drivingly connected to the second roller through its outer wall.

[0010] Optionally, the lower layer assembly includes a plurality of first lifting rods, a first upper connecting seat and a first lower connecting seat connected to both ends of the first lifting rods, and further includes a plurality of second lifting rods, a second upper connecting seat and a second lower connecting seat connected to both ends of the second lifting rods;

[0011] The first lifting rod is drivingly connected to the clamp through the first upper connecting seat and drivingly connected to the first roller through the first lower connecting seat. The second lifting rod is drivingly connected to the tongue strip through the second upper connecting seat and drivingly connected to the second roller through the second lower connecting seat.

[0012] Optionally, a support is connected to the frame, and the lower layer assembly further includes a plurality of sliding bearings connected to the support;

[0013] The first lifting rod and the second lifting rod are respectively slidably connected to the support 312 through the sliding bearings.

[0014] Optionally, the lower layer assembly further includes a first push-pull rod, a clamp follower sleeve and a connecting rod;

[0015] Both ends of the first push-pull rod are respectively connected to the clamp follower sleeve and the first upper connecting seat, and both ends of the connecting rod are respectively hinged to the clamp follower sleeve and the clamp.

[0016] Optionally, a first receiving cavity for the first push-pull rod to extend into and a first slot communicating with the first receiving cavity are formed on the clamp follower sleeve. The lower layer assembly further includes a first spring disposed in the first receiving cavity and a first connecting pin disposed in the first slot and connected to the first push-pull rod;

[0017] Both ends of the first spring respectively abut against the clamp follower sleeve and the first push-pull rod along the direction of its elastic deformation. The direction of elastic deformation of the first spring and the extending direction of the first slot are both parallel to the moving direction of the first push-pull rod.

[0018] Optionally, the lower layer assembly further includes a second push-pull rod and a tongue strip seat;

[0019] Both ends of the second push-pull rod are respectively connected to the tongue strip seat and the second upper connecting seat. The tongue strip is connected to the tongue strip seat and is drivingly connected to the second lifting rod through the tongue strip seat and the second push-pull rod;

[0020] A guiding groove for the rotating shaft to pass through is provided on the tongue strip seat, and the extending direction of the guiding groove is parallel to the moving direction of the second push-pull rod.

[0021] Optionally, a second accommodating cavity is formed on the tongue bar seat for the second push-pull rod to extend into, and the lower layer component further comprises a second connecting pin connected to the tongue bar seat and passing through the second accommodating cavity, and a second spring located in the second accommodating cavity;

[0022] The second push-pull rod is used to extend into the second accommodating cavity at one end to form a second slot hole for accommodating the second connecting pin. The two ends of the second spring along its own elastic deformation direction respectively abut against the tongue bar seat and the second push-pull rod. The elastic deformation direction of the second spring and the extension direction of the second slot hole are parallel to the moving direction of the second push-pull rod.

[0023] Optionally, the lower layer assembly further comprises a third spring coaxially sleeved on the second push-pull rod;

[0024] The two ends of the second spring are respectively in contact with the frame and the second upper connecting seat, and the second roller can be always pressed against the disc cam through the second upper connecting seat.

[0025] The ultrasonic paper cup forming servo drive mechanism provided by the present application has the beneficial effect that: compared with the prior art, the ultrasonic paper cup forming servo drive mechanism provided by the present application is provided with an upper component and a lower component. The tongue strip in the upper component can move along the radial direction of the rotating shaft to press the paper cup die-cut sample against the forming mold core, and the clamp can wrap the paper cup die-cut sample tightly against the forming mold core during the rotation around the central axis of the rotating shaft. Since the clamp and the tongue strip are respectively connected to the first roller and the second roller by transmission, and the first roller and the second roller are both connected to the same composite cam by transmission. In this way, during the rotation of the composite cam, the clamp and the tongue strip can be matched with the forming mold core and the ultrasonic die head under preset time conditions through the guide path provided thereon and matched with the first roller and the second roller, which can not only significantly improve the production efficiency and quality stability of paper cups, but also adopt the method of driving the clamp and the tongue strip by the composite cam to significantly reduce the complexity of the paper cup machine drive mechanism, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A schematic diagram of the overall structure of the ultrasonic paper cup forming servo drive mechanism provided in an embodiment of the present application;

[0028] Figure 2 The front view structural schematic diagram of the ultrasonic paper cup forming servo drive mechanism provided by the embodiment of the present application;

[0029] Figure 3 Along the Figure 2 Sectional view structure diagram of line A-A in;

[0030] Figure 4 The partial structural schematic diagram of the ultrasonic paper cup forming servo drive mechanism provided by the embodiment of the present application;

[0031] Figure 5 The partial structural sectional view of the ultrasonic paper cup forming servo drive mechanism provided by the embodiment of the present application.

[0032] Among them, each reference numeral in the figure: 100, frame table board; 201, forming die core; 202, ultrasonic die head; 203, rotating shaft; 204, clamp; 205, tongue strip; 301, compound cam; 302, first roller; 303, second roller; 304, disk cam; 305, groove cam; 306, first lifting rod; 307, first upper connecting seat; 308, first lower connecting seat; 309, second lifting rod; 310, second upper connecting seat; 311, second lower connecting seat; 312, support; 313, sliding bearing; 314, first push-pull rod; 315, clamp follower sleeve; 316, connecting rod; 317, first accommodating cavity; 318, first slot hole; 319, first spring; 320, first connecting pin; 321, second push-pull rod; 322, tongue strip seat; 323, guiding groove; 324, second accommodating cavity; 325, second connecting pin; 326, second spring; 327, second slot hole; 328, third spring. Detailed implementation manners

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0037] Please refer to Figures 1 to 5 , and a servo drive mechanism for ultrasonic paper cup forming provided in an embodiment of the present application will be described. This servo drive mechanism for ultrasonic paper cup forming includes a frame table board 100, an upper layer component, and a lower layer component. Among them:

[0038] The upper component includes a forming die core 201 connected to the frame platen 100 and an ultrasonic die head 202 capable of approaching or separating from the forming die core 201. It also includes a rotating shaft 203 connected to the frame platen 100 and a clamp 204 and a tongue strip 205 respectively connected to the rotating shaft 203. The clamp 204 is used to rotate around the axis of the rotating shaft 203 to hold tightly on or disengage from the forming die core 201, and the tongue strip 205 is used to move radially along the rotating shaft 203 and can approach or separate from the forming die core 201; the lower component includes a compound cam 301, a first roller 302 drivingly connected to the clamp 204, and a second roller 303 drivingly connected to the tongue strip 205. The compound cam 301 forms different guiding paths cooperating with the first roller 302 and the second roller 303 so that the clamp 204 and the tongue strip 205 can cooperate with the forming die core 201 and the ultrasonic die head 202 under preset time conditions. Here, the compound cam 301 is drivingly connected to the output shaft of the servo motor, and the compound cam 301 is driven to rotate by the servo motor. When the clamp 204 holds tightly on the forming die core 201, it is used to wrap the die-cut paper of the forming paper cup body tightly around the outer wall of the forming die core 201. Among them, the tongue strip 205 is used to raise the die-cut paper and make its corresponding surface abut against the lowest position of the outer wall of the forming die core 201 before the clamp 204 holds tightly, so that when the clamp 204 holds tightly on the forming die core 201, the die-cut paper can be completely wrapped around the outer wall of the forming die core 201, ensuring the forming quality of the paper cup body. The ultrasonic die head 202 is used to weld the joint of the die-cut paper and then complete the forming of the cup body. The ultrasonic die head 202 can adopt the existing paper cup machine technology.

[0039] According to the above structure provided in this embodiment, an upper component and a lower component are provided in the ultrasonic paper cup forming servo drive mechanism provided in this embodiment. Among them, the tongue strip 205 in the upper component can move radially along the rotating shaft 203 to tightly press the die-cut paper sample of the paper cup against the forming die core 201, and the clamp 204 can wrap the die-cut paper sample of the paper cup tightly around the forming die core 201 during the process of rotating around the central axis of the rotating shaft 203. Since the clamp 204 and the tongue strip 205 are respectively drivingly connected to the first roller 302 and the second roller 303, and both the first roller 302 and the second roller 303 are drivingly connected to the same compound cam 301. In this way, during the rotation of the compound cam 301, through the guiding paths provided thereon and cooperating with the first roller 302 and the second roller 303, the clamp 204 and the tongue strip 205 can cooperate with the forming die core 201 and the ultrasonic die head 202 under preset time conditions. In this way, not only can the production efficiency and quality stability of the paper cup be significantly improved, but also the complexity of the drive mechanism of the paper cup machine can be significantly reduced by using this method of driving the clamp 204 and the tongue strip 205 by the compound cam 301, which is far superior to the prior art.

[0040] In another embodiment of the present application, please refer toFigures 1 to 5 , the compound cam 301 includes a disc cam 304 and a groove cam 305 recessed from the disc cam 304. The groove cam 305 is in driving connection with the first roller 302 through its own groove wall, and the disc cam 304 is in driving connection with the second roller 303 through its own outer wall. According to the above structure provided in this embodiment, the groove cam 305 being recessed from the disc cam 304 can simplify the structure of the compound cam 301, which is beneficial to further reducing the complexity of the driving mechanism of the paper cup machine.

[0041] In another embodiment of the present application, please also refer to Figures 1 to 5 , the lower layer assembly includes a plurality of first lifting rods 306 and first upper connecting seats 307 and first lower connecting seats 308 connected to both ends of the first lifting rods 306, and also includes a plurality of second lifting rods 309 and second upper connecting seats 310 and second lower connecting seats 311 connected to both ends of the second lifting rods 309; the first lifting rods 306 are in driving connection with the clamping jaws 204 through the first upper connecting seats 307 and in driving connection with the first rollers 302 through the first lower connecting seats 308, and the second lifting rods 309 are in driving connection with the tongue strips 205 through the second upper connecting seats 310 and in driving connection with the second rollers 303 through the second lower connecting seats 311.

[0042] According to the above structure provided in this embodiment, an appropriate number of first lifting rods 306 and second lifting rods 309 can be connected between the first upper connecting seat 307 and the first lower connecting seat 308 and between the second upper connecting seat 310 and the second lower connecting seat 311 according to actual needs. In this way, it is beneficial to respectively arrange an appropriate number of first lifting rods 306 and second lifting rods 309 between the first roller 302 and the clamping jaws 204 and between the second roller 303 and the tongue strips 205, which is beneficial to further reducing the complexity of the driving mechanism of the paper cup machine.

[0043] In another embodiment of the present application, please also refer to Figures 1 to 5 , a support 312 is connected to the frame, and the lower layer assembly further includes a plurality of sliding bearings 313 connected to the support 312. The first lifting rods 306 and the second lifting rods 309 are respectively slidably connected to the support 312 through the sliding bearings 313. According to the above structure provided in this embodiment, the lifting stability of the first lifting rods 306 and the second lifting rods 309 can be significantly improved through the plurality of sliding bearings 313 connected to the support 312, which is beneficial to the first roller 302 driving the clamping jaws 204 more stably and the second roller 303 driving the tongue strips 205 more stably.

[0044] In another embodiment of the present application, please also refer to Figures 1 to 5, the lower layer assembly further includes a first push rod 314, a clamping follower sleeve 315, and a connecting rod 316. Two ends of the first push rod 314 are respectively connected to the clamping follower sleeve 315 and the first upper connecting seat 307, and two ends of the connecting rod 316 are respectively hinged to the clamping follower sleeve 315 and the clamp 204. According to the above structure provided in this embodiment, when the compound cam 301 rotates, power can be transmitted to the clamp 204 through the first roller 302, the first lower connecting seat 308, the first lifting rod 306, the first upper connecting seat 307, the first push rod 314, the first clamping follower sleeve 315, and the connecting rod 316, so that the clamp 204 can rotate around the central axis of the rotating shaft 203, having a good and stable driving effect.

[0045] In another embodiment of the present application, please refer to Figures 1 to 5 , a first accommodation cavity 317 for the first push rod 314 to extend into and a first slot hole 318 communicating with the first accommodation cavity 317 are formed on the clamping follower sleeve 315. The lower layer assembly further includes a first spring 319 disposed in the first accommodation cavity 317 and a first connecting pin 320 disposed in the first slot hole 318 and connected to the first push rod 314. Two ends of the first spring 319 in the direction of its elastic deformation respectively abut against the clamping follower sleeve 315 and the first push rod 314, and the direction of elastic deformation of the first spring 319 and the extending direction of the first slot hole 318 are both parallel to the moving direction of the first push rod 314.

[0046] According to the above structure provided in this embodiment, the first spring 319 disposed in the first accommodation cavity 317 can make the first push rod 314 and the clamping follower sleeve 315 always have a tendency to move away from each other, and the direction in which they move away from each other is restricted by the first connecting pin 320 accommodated in the first slot hole 318. In this way, when the clamp 204 is in a normal working state, the first push rod 314 can drive the clamping follower sleeve 315 to move through the first spring 319; while when the clamp 204 is in a stuck state, the first push rod 314 can overcome the elastic force of the first spring 319 and move in the first accommodation cavity 317, thus well avoiding damage to the first push rod 314 and other structures connected to the first push rod 314, which is beneficial to significantly improving the service life of the ultrasonic paper cup forming servo drive mechanism in this embodiment.

[0047] In another embodiment of the present application, please refer to Figures 1 to 5, the lower component further includes a second push rod 321 and a tongue strip seat 322. The two ends of the second push rod 321 are respectively connected to the tongue strip seat 322 and the second upper connecting seat 310. The tongue strip 205 is connected to the tongue strip seat 322 and is in transmission connection with the second lifting rod 309 through the tongue strip seat 322 and the second push rod 321. A guiding groove 323 for the rotating shaft 203 to pass through is provided on the tongue strip seat 322, and the extending direction of the guiding groove 323 is parallel to the moving direction of the second push rod 321. According to the above structure provided in this embodiment, when the compound cam 301 rotates, it can drive the tongue strip 205 connected to the tongue strip seat 322 to move radially along the rotating shaft 203 through the second roller 303, the second lower connecting seat 311, the second lifting rod 309, the second upper connecting seat 310, the second push rod 321 and the tongue strip seat 322, and has a good and stable driving effect.

[0048] In another embodiment of the present application, please refer to Figures 1 to 5 , a second accommodating cavity 324 for the second push rod 321 to extend into is formed on the tongue strip seat 322. The lower component further includes a second connecting pin 325 connected to the tongue strip seat 322 and passing through the second accommodating cavity 324 and a second spring 326 located in the second accommodating cavity 324. One end of the second push rod 321 for extending into the second accommodating cavity 324 forms a second slot 327 for accommodating the second connecting pin 325. The two ends of the second spring 326 in the direction of its elastic deformation respectively abut against the tongue strip seat 322 and the second push rod 321, and the direction of elastic deformation of the second spring 326 and the extending direction of the second slot 327 are both parallel to the moving direction of the second push rod 321.

[0049] According to the above structure provided in this embodiment, the second spring 326 arranged in the second accommodating cavity 324 can make the second push rod 321 and the tongue strip seat 322 always have a tendency to move away from each other, and the direction in which they move away from each other is limited by the second connecting pin 325 accommodated in the second slot 327. In this way, when the tongue strip 205 is in a normal working state, the second push rod 321 can drive the tongue strip seat 322 to move through the second spring 326; when the tongue strip 205 is in a stuck state, the second push rod 321 can overcome the elastic force of the second spring 326 and move in the second accommodating cavity 324, which well avoids the damage of the second push rod 321 and other structures connected to the second push rod 321, and is beneficial to significantly improving the service life of the ultrasonic paper cup forming servo drive mechanism in this embodiment.

[0050] In another embodiment of the present application, please refer to Figures 1 to 5, the lower component further includes a third spring 328 coaxially sleeved on the second push rod 321. Two ends of the second spring 326 respectively abut against the frame and the second upper connecting seat 310, and can always press the second roller 303 tightly against the disc cam 304 through the second upper connecting seat 310. According to the above structure provided in this embodiment, since the second roller 303 abuts against the outer wall of the disc cam 304, when the second roller 303 is in the return stroke stage, it is easy to separate from the outer wall of the disc cam 304. The third spring 328 abutting between the frame and the second upper connecting seat 310 can well solve this problem and always press the second roller 303 tightly against the disc cam 304, which is beneficial to the long-term stable use of the ultrasonic paper cup forming servo drive mechanism provided in this embodiment.

[0051] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ultrasonic paper cup forming servo drive mechanism, characterized in that: include: Rack plate (100); An upper component, comprising a molding core (201) connected to the frame platen (100) and an ultrasonic die head (202) capable of moving closer to or farther away from the molding core (201), and also comprising a rotating shaft (203) connected to the frame platen (100) and a clamp (204) and a tongue strip (205) respectively connected to the rotating shaft (203), wherein the clamp (204) is used to rotate around the axial direction of the rotating shaft (203) to clamp onto the molding core (201) or to detach from the molding core (201), and the tongue strip (205) is used to move along the radial direction of the rotating shaft (203) and be capable of moving closer to or farther away from the molding core (201); The lower layer component comprises a composite cam (301), a first roller (302) drivingly connected to the clamp (204), and a second roller (303) drivingly connected to the tongue strip (205), wherein the composite cam (301) forms different guide paths that match the first roller (302) and the second roller (303) so that the clamp (204) and the tongue strip (205) can match the molding core (201) and the ultrasonic die head (202) under preset time conditions.

2. The ultrasonic paper cup forming servo drive mechanism according to claim 1, characterized in that: The composite cam (301) comprises a disc-shaped cam (304) and a groove-shaped cam (305) formed by being recessed from the disc-shaped cam (304); The groove-shaped cam (305) is transmission-connected to the first roller (302) via its own groove wall, and the disc-shaped cam (304) is transmission-connected to the second roller (303) via its own outer wall.

3. The ultrasonic paper cup forming servo drive mechanism according to claim 2, characterized in that: The lower layer assembly comprises a plurality of first lifting rods (306) and a first upper connecting seat (307) and a first lower connecting seat (308) connected at two ends of the first lifting rods (306), and also comprises a plurality of second lifting rods (309) and a second upper connecting seat (310) and a second lower connecting seat (311) connected at two ends of the second lifting rods (309); The first lifting rod (306) is transmission-connected to the clamp (204) via the first upper connecting seat (307) and is transmission-connected to the first roller (302) via the first lower connecting seat (308); the second lifting rod (309) is transmission-connected to the tongue strip (205) via the second upper connecting seat (310) and is transmission-connected to the second roller (303) via the second lower connecting seat (311).

4. The ultrasonic paper cup forming servo drive mechanism according to claim 3, characterized in that: The frame is connected to a support (312), and the lower layer component further comprises a plurality of sliding bearings (313) connected to the support (312); The first lifting rod (306) and the second lifting rod (309) are respectively slidably connected to the support (312) via the sliding bearing (313).

5. The ultrasonic paper cup forming servo drive mechanism according to claim 3, characterized in that: The lower layer assembly further comprises a first push-pull rod (314), a clamping follower sleeve (315) and a connecting rod (316); The two ends of the first push-pull rod (314) are respectively connected to the clamp follower sleeve (315) and the first upper connecting seat (307), and the two ends of the connecting rod (316) are respectively hinged to the clamp follower sleeve (315) and the clamp (204).

6. The ultrasonic paper cup forming servo drive mechanism according to claim 5, characterized in that: The clamp follower sleeve (315) is formed with a first accommodating cavity (317) for the first push-pull rod (314) to extend into and a first slot hole (318) connected to the first accommodating cavity (317); the lower layer component also includes a first spring (319) arranged in the first accommodating cavity (317) and a first connecting pin (320) arranged in the first slot hole (318) and connected to the first push-pull rod (314); The two ends of the first spring (319) along its own elastic deformation direction respectively abut against the clamping follower sleeve (315) and the first push-pull rod (314), and the elastic deformation direction of the first spring (319) and the extension direction of the first slot hole (318) are both parallel to the moving direction of the first push-pull rod (314).

7. The ultrasonic paper cup forming servo drive mechanism according to claim 3, characterized in that: The lower layer assembly also includes a second push-pull rod (321) and a tongue bar seat (322); The two ends of the second push-pull rod (321) are respectively connected to the tongue bar seat (322) and the second upper connecting seat (310); the tongue bar (205) is connected to the tongue bar seat (322) and is transmission-connected to the second lifting rod (309) via the tongue bar seat (322) and the second push-pull rod (321); The tongue bar seat (322) is provided with a guide groove (323) for the rotating shaft (203) to pass through, and the extension direction of the guide groove (323) is parallel to the moving direction of the second push-pull rod (321).

8. The ultrasonic paper cup forming servo drive mechanism according to claim 7, characterized in that: A second accommodating cavity (324) is formed on the tongue bar seat (322) for the second push-pull rod (321) to extend into, and the lower layer component further comprises a second connecting pin (325) connected to the tongue bar seat (322) and passing through the second accommodating cavity (324), and a second spring (326) located in the second accommodating cavity (324); The second push-pull rod (321) is used to extend into the second accommodating cavity (324) at one end to form a second slot hole (327) for accommodating the second connecting pin (325), and the second spring (326) is respectively abutted against the tongue bar seat (322) and the second push-pull rod (321) at both ends along its own elastic deformation direction, and the elastic deformation direction of the second spring (326) and the extension direction of the second slot hole (327) are parallel to the moving direction of the second push-pull rod (321).

9. The ultrasonic paper cup forming servo drive mechanism according to claim 8, characterized in that: The lower layer assembly further comprises a third spring (328) coaxially sleeved on the second push-pull rod (321); The two ends of the second spring (326) are respectively in contact with the frame and the second upper connecting seat (310), and the second roller (303) can be always pressed against the disc cam (304) via the second upper connecting seat (310).

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