An automatic pressing device for stroller shoulder strap buckles

Abstract

This invention discloses an automatic pressing device for stroller shoulder strap buckles, belonging to the technical field of automatic buckle pressing equipment. It includes a processing box with an outlet and an inlet. A plastic shell is placed on the processing box. A lifting plate is slidably mounted on top of the processing box. A lifting assembly connected to the lifting plate is mounted on the side of the processing box. A limiting assembly located below the lifting plate is mounted on the processing box, and a flipping plate is connected to the limiting assembly. A top plate located below the plastic shell is slidably mounted on the processing box. A top-feeding assembly is connected to the lifting assembly and is connected to the top plate. During the pressing process, the flipping plate and the driving block release the plastic shell, thereby preventing deformation of the plastic shell during pressing. It also prevents the flipping plate and the driving block from continuing to squeeze the plastic shell after pressing, thus avoiding damage to the plastic shell. This also prevents the rivets and other metal parts from falling off or being damaged after pressing.

Description

Technical Field

[0001] This invention relates to the field of automatic buckle pressing equipment, and specifically discloses an automatic pressing device for stroller shoulder strap buckles. Background Technology

[0002] Baby stroller shoulder straps are a core component of the baby stroller safety system. They are mainly used to secure the baby's body, prevent the baby from slipping or shaking during use, and ensure the baby's safety and comfort. They are widely used in the assembly and production of various baby strollers and baby walkers. The assembly firmness and buckle connection stability are directly related to the baby's personal safety and are an indispensable key component in the baby stroller production process.

[0003] In the production and assembly process of stroller shoulder straps, buckle pressing is one of the core and critical steps. A pressing device precisely presses and fixes the plastic shell and other buckle components onto the shoulder strap, enabling the strap to lock and unlock. Therefore, the stroller shoulder strap buckle pressing device is a core supporting equipment for the large-scale and standardized production of stroller shoulder straps. The core function of the stroller shoulder strap buckle pressing device is to precisely press and assemble the plastic shell and other components of the stroller shoulder strap buckle, achieving a stable connection between the buckle and the shoulder strap. It is adaptable to the processing needs of different specifications and types of stroller shoulder strap buckles and is widely used in stroller accessory processing plants, stroller manufacturing plants, and other scenarios. It ensures buckle pressing accuracy and assembly efficiency, and is an important support for improving the assembly quality of stroller shoulder straps and ensuring the safety of infants.

[0004] Existing plastic shell pressing equipment lacks dedicated limiting and follow-up release structures. During pressing operations, it cannot accurately position and constrain the flipping plate and driving block, resulting in uneven stress on the plastic shell during pressing and easy extrusion deformation. Furthermore, after pressing, the limiting structure cannot be released in time, and the plastic shell continues to be subjected to extrusion pressure. Long-term continuous extrusion can easily cause surface damage and cracking of the shell, significantly increasing the product scrap rate and production costs. At the same time, the unloading and ejection mechanism of traditional stroller shoulder strap buckle pressing equipment lacks a delay control function. The workpiece is ejected immediately after the buckle is pressed, and rigid collisions are likely to occur between the ejected plastic shells. This not only easily scratches the shell appearance, affecting the product's aesthetics, but also easily causes problems such as loosening, falling off, and displacement of rivets and metal parts inside the shell. This, in turn, affects the assembly accuracy of the buckle and shoulder strap and the quality of the finished product. The overall operational stability of the equipment is poor, making it difficult to guarantee the yield rate of mass pressing production and failing to meet the needs of large-scale, high-quality production of stroller shoulder straps. Therefore, an automatic pressing device for stroller shoulder strap buckles has been invented to address these shortcomings. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention provides the following technical solution: an automatic pressing device for stroller shoulder strap buckles, comprising a processing box, an outlet and an inlet on the processing box, a plastic shell placed on the processing box, a lifting plate slidably mounted above the processing box, and a lifting assembly connected to the lifting plate mounted on the side of the processing box. The lifting assembly enables the lifting plate to move up and down on the processing box, and the lifting plate presses the plastic shell.

[0006] The processing box is equipped with a limiting component located below the lifting plate. A flip plate is connected to the limiting component. The limiting component drives the flip plate to move and limits the position of the plastic shell.

[0007] A top plate is slidably installed on the processing box, located below the plastic shell. A top material assembly is connected to the lifting assembly. The top material assembly is connected to the top plate. The top material assembly can drive the top plate to move up and down, and push out the pressed plastic shell through the top plate.

[0008] Furthermore, the lifting assembly includes a motor fixedly mounted on the processing box, a first turntable fixedly mounted on the motor output end, the first turntable being located outside the processing box, a first vertical groove being provided on the outer side of the processing box, a movable frame being slidably mounted on the inner wall of the first vertical groove, a horizontal groove being provided on the side of the movable frame, a movable shaft being slidably mounted on the inner wall of the horizontal groove, the movable shaft being fixedly connected to the first turntable, the connection point between the movable shaft and the first turntable not being located at the center of the first turntable, a first connecting rod being fixedly mounted on the movable frame, and the first connecting rod being fixedly connected to the lifting plate.

[0009] Furthermore, a limit post is fixedly installed on the processing box, and the lifting plate is slidably connected to the limit post. A fixed shaft is rotatably installed on the side of the processing box. The limiting assembly includes a rotating plate and a second turntable fixedly installed on the outer surface of the fixed shaft. The rotating plate is located inside the processing box, and the second turntable is located outside the processing box. A second connecting shaft is eccentrically arranged on the side of the second turntable away from the processing box. A first connecting rod is rotatably installed on the outer surface of the second connecting shaft. A first connecting shaft is rotatably installed on the end of the first connecting rod away from the second connecting shaft. The first connecting shaft is fixedly installed on the side of the lifting plate.

[0010] Furthermore, a rectangular through hole is provided on the side of the processing box away from the feed inlet. A third connecting shaft is rotatably mounted on the inner wall of the rectangular through hole, and a second connecting rod is fixedly mounted on the outer surface of the third connecting shaft. A third connecting rod is rotatably mounted on the end of the second connecting rod away from the third connecting shaft, and a fixing block is rotatably mounted on the end of the third connecting rod away from the second connecting rod. The fixing block is fixedly mounted on the lower side of the lifting plate, and a pressure plate is fixedly connected to the lower side of the lifting plate. The pressure plate is located above the plastic shell.

[0011] Furthermore, a drive shaft is fixedly installed on the outer surface of the third connecting shaft, and a flip plate is fixedly installed at the end of the drive shaft away from the third connecting shaft. A limit block is installed below the flip plate and is fixedly installed inside the processing box. When the upper surface of the flip plate is parallel to the bottom of the inner wall of the processing box, the lower surface of the flip plate is in contact with the upper surface of the limit block.

[0012] Furthermore, a drive block is slidably installed on the side of the processing box near the feed inlet, and a connecting plate is fixedly installed on the upper side of the drive block. The connecting plate is fixedly connected to the lower end face of the lifting plate. When the lower end face of the lifting plate coincides with the upper end face of the processing box, the lower end face of the drive block coincides with the bottom of the inner wall of the processing box.

[0013] Furthermore, a rectangular through hole two is provided at the bottom of the inner wall of the processing box, and the top plate is slidably installed on the inner wall of the rectangular through hole two. The top material assembly includes a connecting block fixedly installed at the end of the top plate away from the processing box. A first limiting frame is fixedly installed at the lower part of the processing box. A second vertical groove is provided on the side of the first limiting frame. A first vertical shaft is fixedly installed on the inner wall of the second vertical groove. The connecting block is slidably connected to the first vertical shaft and located on the inner wall of the second vertical groove.

[0014] Furthermore, a first spring is wound around the outer surface of the first vertical shaft, one end of the first spring is fixedly installed on the inner wall of the second vertical groove, and the other end of the first spring is fixedly installed on the connecting block.

[0015] Furthermore, a second vertical shaft is fixedly installed on the side of the connecting block away from the processing box, and a drive frame is slidably installed on the outer surface of the second vertical shaft. The end of the drive frame away from the middle plate is fixedly connected to the moving frame.

[0016] Furthermore, four rotating blocks are symmetrically fixedly installed on the lower side of the processing box. Each rotating block has a rotating block rotatably installed on its side, and a positioning rod is slidably installed on the side of each rotating block. An electric cylinder is fixedly installed on the inner wall of each positioning rod, and the telescopic end of the electric cylinder is fixedly connected to the sliding rod.

[0017] The beneficial effects of this invention are: (1) The present invention achieves the limitation of the position of the flip plate and the driving block when the pressure plate presses the plastic shell by the cooperation of the lifting component and the limiting component. During the lifting process of the pressure plate, the flip plate and the driving block release the plastic shell, thereby avoiding deformation of the plastic shell during the pressing process. At the same time, it also avoids the flip plate and the driving block from continuing to squeeze the plastic shell after the pressing is completed, which would cause damage to the plastic shell.

[0018] (2) The present invention achieves delayed jacking of the plastic shell by the cooperation of the lifting component and the top component. The delayed jacking avoids collision between the jacked plastic shells, thereby preventing the rivets and other metal parts from falling off and being damaged after being pressed. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the position of the electric cylinder proposed in this invention.

[0021] Figure 3 The present invention proposes Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 The present invention proposes Figure 2 A magnified view of a portion of point B in the middle.

[0023] Figure 5 This is a schematic diagram of the position of the drive frame proposed in this invention.

[0024] Figure 6 The present invention proposes Figure 5 A magnified view of a portion of point C in the middle.

[0025] Figure 7 This is a schematic diagram of the motor position proposed in this invention.

[0026] Figure 8 This is a schematic diagram showing the positions of the rotating shaft and the fixed shaft proposed in this invention.

[0027] Figure 9 The present invention proposes Figure 8 A magnified view of a portion of point D in the middle.

[0028] Figure 10 This is a schematic diagram of the discharge port location proposed in this invention.

[0029] Reference numerals: 101-Processing box; 102-Limiting post; 103-Rotating shaft; 104-Fixed shaft; 105-Discharge port; 201-Lifting plate; 202-First connecting rod; 203-First vertical groove; 204-Moving frame; 205-Horizontal groove; 206-Moving shaft; 207-First turntable; 208-Motor; 209-Fixed plate; 210-Rotating plate; 211-Pressure plate; 212-Plastic shell; 213-Limiting block; 214-Inlet; 301-First connecting shaft; 302-First connecting rod; 303-Second connecting shaft; 304-Second turntable; 305 - Third connecting shaft; 306 - Second connecting rod; 307 - Drive shaft; 308 - Third connecting rod; 309 - Fixed block; 310 - Flip plate; 311 - Connecting plate; 312 - Drive block; 401 - First limiting frame; 402 - Second vertical groove; 403 - Top plate; 404 - Connecting block; 405 - First vertical shaft; 406 - Second vertical shaft; 407 - Intermediate plate; 408 - Second limiting frame; 409 - Third vertical groove; 410 - Third vertical shaft; 411 - Drive frame; 501 - Rotating block; 502 - Sliding rod; 503 - Positioning rod; 504 - Electric cylinder. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] As mentioned in the background section, this application proposes an automatic pressing device for stroller shoulder strap buckles.

[0032] Appendix Figure 1 To the attached Figure 5As shown, the system includes a processing box 101, which has a discharge port 105 and a feed port 214. A plastic shell 212 is placed on the processing box 101. A lifting plate 201 is slidably mounted on top of the processing box 101. A lifting assembly connected to the lifting plate 201 is mounted on the side of the processing box 101. The lifting assembly can drive the lifting plate 201 to move up and down on the processing box 101 and press the plastic shell 212. The lifting assembly includes a motor 208 fixedly mounted on the processing box 101. A rotating shaft 103 is fixedly mounted on the side of the processing box 101. A fixing plate 209 is fixedly mounted on the outer surface of the rotating shaft 103. The fixing plate 209 is fixedly mounted on the processing box 101. Inside, a fixed plate 209 is fixedly connected to a motor 208. A first turntable 207 is fixedly installed at the output end of the motor 208. The first turntable 207 is located outside the processing box 101. A first vertical groove 203 is provided on the outer side of the processing box 101. A movable frame 204 is slidably installed on the inner wall of the first vertical groove 203. A horizontal groove 205 is provided on the side of the movable frame 204. A movable shaft 206 is slidably installed on the inner wall of the horizontal groove 205. The movable shaft 206 is fixedly connected to the first turntable 207. The connection point between the movable shaft 206 and the first turntable 207 is not located at the center of the first turntable 207. A first connecting rod 202 is fixedly installed on the movable frame 204. The first connecting rod 202 is fixedly connected to a lifting plate 201.

[0033] As mentioned in the background section, this application proposes an automatic pressing device for stroller shoulder strap buckles.

[0034] Appendix Figure 2 To the attached Figure 6As shown, a limiting component is installed on the processing box 101 below the lifting plate 201. A flip plate 310 is connected to the limiting component. The limiting component drives the flip plate 310 to move and limits the position of the plastic shell 212. A limiting post 102 is fixedly installed on the processing box 101. The lifting plate 201 is slidably connected to the limiting post 102. A fixed shaft 104 is rotatably installed on the side of the processing box 101. The limiting component includes a rotating plate 210 and a second turntable 304 fixedly installed on the outer surface of the fixed shaft 104. The rotating plate 210 is located inside the processing box 101, and the second turntable 304 is located outside the processing box 101. A second connecting shaft 303 is eccentrically arranged on the side of the second turntable 304 away from the processing box 101. A first connecting rod 302 is rotatably installed on the outer surface of the second connecting shaft 303. A first connecting shaft 301 is rotatably mounted at the end away from the second connecting shaft 303. The first connecting shaft 301 is fixedly mounted on the side of the lifting plate 201. A rectangular through hole is provided on the side of the processing box 101 away from the feed port 214. A third connecting shaft 305 is rotatably mounted on the inner wall of the rectangular through hole. A second connecting rod 306 is fixedly mounted on the outer surface of the third connecting shaft 305. A third connecting rod 308 is rotatably mounted at the end of the second connecting rod 306 away from the third connecting shaft 305. A fixing block 309 is rotatably mounted at the end of the third connecting rod 308 away from the second connecting rod 306. The fixing block 309 is fixedly mounted on the lower side of the lifting plate 201. A pressure plate 211 is fixedly connected to the lower side of the lifting plate 201. The pressure plate 211 is located above the plastic shell 212. The pressure plate 211 is provided with multiple mounting holes for mounting rivets and various metal accessories.

[0035] Before operation, rivets and various metal fittings are installed on the mounting holes of the plastic housing 212. Then, the plastic housing 212 is fed into the processing box 101 through the feed port 214. The position of the plastic housing 212 is then limited by the limiting block 213 and the fixing plate 209. Subsequently, the motor 208 is started. The motor 208 drives the moving frame 204 to rise and fall along the first vertical groove 203 through the moving shaft 206. At this time, the moving frame 204 drives the lifting plate 201 to rise and fall along the limiting post 102 through the first connecting rod 202. The lifting plate 201 presses the plastic housing 212, rivets and various metal fittings through the pressing plate 211.

[0036] As mentioned in the background section, this application proposes an automatic pressing device for stroller shoulder strap buckles.

[0037] Appendix Figure 3 To the attached Figure 7As shown, a drive shaft 307 is fixedly installed on the outer surface of the third connecting shaft 305. A flip plate 310 is fixedly installed at the end of the drive shaft 307 away from the third connecting shaft 305. A limit block 213 is installed below the flip plate 310. The limit block 213 is fixedly installed inside the processing box 101. When the upper end face of the flip plate 310 is parallel to the bottom of the inner wall of the processing box 101, the lower end face of the flip plate 310 is in contact with the upper end face of the limit block 213. A drive block 312 is slidably installed on the side of the processing box 101 near the feed port 214. A connecting plate 311 is fixedly installed on the upper side of the drive block 312. The connecting plate 311 is fixedly connected to the lower end face of the lifting plate 201. When the lower end face of the lifting plate 201 coincides with the upper end face of the processing box 101, the lower end face of the drive block 312 coincides with the bottom of the inner wall of the processing box 101. The distance between the end face of the limit block 213 facing the feed port 214 and the drive block 312 is equal to the length of the plastic shell 212.

[0038] When the lifting plate 201 descends, it drives the fixed shaft 104 to rotate via the first connecting shaft 301. The fixed shaft 104 drives the rotating plate 210 to rotate. At the same time, when the lifting plate 201 descends, it drives the third connecting shaft 305 to rotate via the third connecting rod 308. At this time, the flipping plate 310 moves closer to the limiting block 213. When the lower end face of the lifting plate 201 is in contact with the upper end face of the processing box 101, the flipping plate 310 is in contact with the limiting block 213. At this time, the rotating plate 210 is in contact with the plastic shell 212, thereby completing the fixation of the plastic shell 212. This prevents the plastic shell 212 from deforming during the pressing process. When the first connecting rod 202 drives the lifting plate 201 to rise along the limiting post 102, the rotating plate 210 rotates away from the plastic shell 212. At this time, the flipping plate 310 gradually moves away from the limiting block 213. This prevents the flipping plate 310 and the driving block 312 from continuing to squeeze the plastic shell 212 after the pressing is completed, which would cause damage to the plastic shell 212.

[0039] As mentioned in the background section, this application proposes an automatic pressing device for stroller shoulder strap buckles.

[0040] Appendix Figure 5 To the attached Figure 10As shown, a top plate 403 located below the plastic shell 212 is slidably mounted on the processing box 101. A top-feeding component is connected to the lifting assembly and is connected to the top plate 403. The top-feeding component can drive the top plate 403 to move up and down, and push out the pressed plastic shell 212 through the top plate 403. A rectangular through hole is provided at the bottom of the inner wall of the processing box 101. The top plate 403 is slidably mounted on the inner wall of the rectangular through hole. The top-feeding component includes a connecting block 404 fixedly mounted on the end of the top plate 403 away from the processing box 101. A first limiting frame 401 is fixedly mounted on the lower part of the processing box 101. A second vertical groove 402 is provided on the side of the first limiting frame 401. A first vertical shaft 405 is fixedly mounted on the inner wall of the second vertical groove 402. The connecting block 404 is slidably connected to the first vertical shaft 405 and is located on the inner wall of the second vertical groove 402. A first spring is wound on the outer surface of the first vertical shaft 405. One end of a spring is fixedly installed on the inner wall of the second vertical groove 402, and the other end of the first spring is fixedly installed on the connecting block 404. A second vertical shaft 406 is fixedly installed on the side of the connecting block 404 away from the processing box 101. A drive frame 411 is slidably installed on the outer surface of the second vertical shaft 406. The end of the drive frame 411 away from the intermediate plate 407 is fixedly connected to the moving frame 204. A second limiting frame 408 is fixedly installed on the lower side of the processing box 101. A third vertical groove 409 is provided on the side of the second limiting frame 408. A third vertical shaft 410 is fixedly installed on the inner wall of the third vertical groove 409. The third vertical shaft 410 is slidably connected to the drive frame 411. The drive frame 411 is slidably installed on the inner wall of the third vertical groove 409. A second spring is wound on the outer surface of the third vertical shaft 410. One end of the second spring is fixedly installed on the inner wall of the second limiting frame 408, and the other end of the second spring is fixedly installed on the drive frame 411.

[0041] When the first connecting rod 202 drives the lifting plate 201 to rise along the limiting post 102, the moving frame 204 drives the driving frame 411 to rise. At this time, the intermediate plate 407 slides along the second vertical axis 406. When the intermediate plate 407 contacts the connecting block 404, the top plate 403 pushes the pressed plastic shell 212, thereby delaying the ejection of the plastic shell 212. The delayed pushing avoids collision between the ejected plastic shell 212 and other plastic shells, thereby preventing the rivets and other metal parts from falling off and being damaged after pressing.

[0042] As mentioned in the background section, this application proposes an automatic pressing device for stroller shoulder strap buckles.

[0043] Appendix Figure 1 Appendix Figure 2 and attached Figure 10As shown, four rotating blocks 501 are symmetrically fixedly installed on the lower side of the processing box 101. Each rotating block 501 has a rotating block 501 rotatably installed on its side. Each rotating block 501 has a positioning rod 503 slidably installed on its side. Each positioning rod 503 has an electric cylinder 504 fixedly installed on its inner wall. The telescopic end of the electric cylinder 504 is fixedly connected to the sliding rod 502.

[0044] Two electric cylinders 504, which are far from the discharge port 105, are activated. The electric cylinders 504 push the sliding rod 502 to rise. At this time, the height of the side of the processing box 101 with the discharge port 105 is reduced. Then, the pressed plastic shell 212 slides out through the discharge port 105.

[0045] Working principle: (a) Before work, rivets and various metal accessories are installed on the mounting holes of the plastic housing 212. Then, the plastic housing 212 is fed into the processing box 101 through the feed port 214. The position of the plastic housing 212 is then limited by the limit block 213 and the fixing plate 209. Then, the motor 208 is started. The motor 208 drives the moving frame 204 to rise and fall along the first vertical groove 203 through the moving shaft 206. At this time, the moving frame 204 drives the lifting plate 201 to rise and fall along the limit post 102 through the first connecting rod 202. The lifting plate 201 presses the plastic housing 212, rivets and various metal accessories through the pressing plate 211.

[0046] (ii) When the lifting plate 201 descends, it drives the fixed shaft 104 to rotate through the first connecting shaft 301. The fixed shaft 104 drives the rotating plate 210 to rotate. At the same time, when the lifting plate 201 descends, it drives the third connecting shaft 305 to rotate through the third connecting rod 308. At this time, the flipping plate 310 moves closer to the limiting block 213. When the lower end face of the lifting plate 201 is in contact with the upper end face of the processing box 101, the flipping plate 310 is in contact with the limiting block 213. At this time, the rotating plate 210 is in contact with the plastic shell 212, thereby completing the fixation of the plastic shell 212 and thus preventing the plastic shell 212 from deforming during the pressing process.

[0047] (iii) When the first connecting rod 202 drives the lifting plate 201 to rise along the limit post 102, the rotating plate 210 rotates in the direction away from the plastic shell 212. At this time, the flip plate 310 gradually moves away from the limit block 213, so as to avoid the flip plate 310 and the driving block 312 continuing to squeeze the plastic shell 212 after the pressing is completed, which would cause damage to the plastic shell 212.

[0048] (iv) When the first connecting rod 202 drives the lifting plate 201 to rise along the limit post 102, the moving frame 204 drives the driving frame 411 to rise. At this time, the intermediate plate 407 slides along the second vertical axis 406. When the intermediate plate 407 contacts the connecting block 404, the top plate 403 pushes the pressed plastic shell 212, thereby delaying the ejection of the plastic shell 212. The delayed pushing avoids collision between the ejected plastic shell 212 and the plastic shell 212, thereby preventing the rivets and other metal parts after pressing from falling off and being damaged.

[0049] (v) Then the two electric cylinders 504 away from the discharge port 105 are started. The electric cylinders 504 push the sliding rod 502 to rise. At this time, the height of the side of the processing box 101 with the discharge port 105 is reduced. At this time, the pressed plastic shell 212 slides out through the discharge port 105.

[0050] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic pressing device for stroller shoulder strap buckles, characterized in that, The system includes a processing box (101), which is provided with a discharge port (105) and a feed port (214). A plastic shell (212) is placed on the processing box (101). A lifting plate (201) is slidably installed on the top of the processing box (101). A lifting assembly connected to the lifting plate (201) is installed on the side of the processing box (101). The lifting assembly can drive the lifting plate (201) to move up and down on the processing box (101) and press the plastic shell (212) through the lifting plate (201). A limiting component is installed on the processing box (101) below the lifting plate (201). A flip plate (310) is connected to the limiting component. The limiting component drives the flip plate (310) to move and limits the position of the plastic shell (212) through the flip plate (310). A top plate (403) located below the plastic shell (212) is slidably installed on the processing box (101). A top material assembly is connected to the lifting assembly. The top material assembly is connected to the top plate (403). The top material assembly can drive the top plate (403) to move up and down, and push out the pressed plastic shell (212) through the top plate (403).

2. The automatic pressing device for stroller shoulder strap buckles according to claim 1, characterized in that, The lifting assembly includes a motor (208) fixedly mounted on the processing box (101), a first turntable (207) fixedly mounted on the output end of the motor (208), the first turntable (207) being located outside the processing box (101), a first vertical groove (203) being provided on the outer side of the processing box (101), a movable frame (204) being slidably mounted on the inner wall of the first vertical groove (203), a horizontal groove (205) being provided on the side of the movable frame (204), a movable shaft (206) being slidably mounted on the inner wall of the horizontal groove (205), the movable shaft (206) being fixedly connected to the first turntable (207), the connection point between the movable shaft (206) and the first turntable (207) not being located at the center of the first turntable (207), a first connecting rod (202) being fixedly mounted on the movable frame (204), and the first connecting rod (202) being fixedly connected to the lifting plate (201).

3. The automatic pressing device for stroller shoulder strap buckles according to claim 1, characterized in that, A limiting post (102) is fixedly installed on the processing box (101). The lifting plate (201) is slidably connected to the limiting post (102). A fixed shaft (104) is rotatably installed on the side of the processing box (101). The limiting assembly includes a rotating plate (210) and a second turntable (304) fixedly installed on the outer surface of the fixed shaft (104). The rotating plate (210) is located inside the processing box (101). The second turntable (304) is located outside the processing box (101). A second connecting shaft (303) is eccentrically arranged on the side of the second turntable (304) away from the processing box (101). A first connecting rod (302) is rotatably installed on the outer surface of the second connecting shaft (303). A first connecting shaft (301) is rotatably installed on the end of the first connecting rod (302) away from the second connecting shaft (303). The first connecting shaft (301) is fixedly installed on the side of the lifting plate (201).

4. The automatic pressing device for stroller shoulder strap buckles according to claim 2, characterized in that, A rectangular through hole is provided on the side of the processing box (101) away from the feed port (214). A third connecting shaft (305) is rotatably installed on the inner wall of the rectangular through hole. A second connecting rod (306) is fixedly installed on the outer surface of the third connecting shaft (305). A third connecting rod (308) is rotatably installed at the end of the second connecting rod (306) away from the third connecting shaft (305). A fixing block (309) is rotatably installed at the end of the third connecting rod (308) away from the second connecting rod (306). The fixing block (309) is fixedly installed on the lower side of the lifting plate (201). A pressure plate (211) is fixedly connected to the lower side of the lifting plate (201). The pressure plate (211) is located above the plastic shell (212).

5. The automatic pressing device for stroller shoulder strap buckles according to claim 4, characterized in that, A drive shaft (307) is fixedly installed on the outer surface of the third connecting shaft (305). A flip plate (310) is fixedly installed at the end of the drive shaft (307) away from the third connecting shaft (305). A limit block (213) is installed below the flip plate (310). The limit block (213) is fixedly installed inside the processing box (101). When the upper surface of the flip plate (310) is parallel to the bottom of the inner wall of the processing box (101), the lower surface of the flip plate (310) is in contact with the upper surface of the limit block (213).

6. The automatic pressing device for stroller shoulder strap buckles according to claim 4, characterized in that, A drive block (312) is slidably installed on the side of the processing box (101) near the feed inlet (214). A connecting plate (311) is fixedly installed on the upper side of the drive block (312). The connecting plate (311) is fixedly connected to the lower end face of the lifting plate (201). When the lower end face of the lifting plate (201) coincides with the upper end face of the processing box (101), the lower end face of the drive block (312) coincides with the bottom of the inner wall of the processing box (101).

7. The automatic pressing device for stroller shoulder strap buckles according to claim 2, characterized in that, The bottom of the inner wall of the processing box (101) is provided with a rectangular through hole II. The top plate (403) is slidably installed on the inner wall of the rectangular through hole II. The top material assembly includes a connecting block (404) fixedly installed on the end of the top plate (403) away from the processing box (101). A first limiting frame (401) is fixedly installed on the lower part of the processing box (101). A second vertical groove (402) is provided on the side of the first limiting frame (401). A first vertical shaft (405) is fixedly installed on the inner wall of the second vertical groove (402). The connecting block (404) is slidably connected to the first vertical shaft (405) and located on the inner wall of the second vertical groove (402).

8. The automatic pressing device for stroller shoulder strap buckles according to claim 7, characterized in that, The outer surface of the first vertical shaft (405) is wound with a first spring. One end of the first spring is fixedly installed on the inner wall of the second vertical groove (402), and the other end of the first spring is fixedly installed on the connecting block (404).

9. An automatic pressing device for stroller shoulder strap buckles according to claim 7, characterized in that, A second vertical shaft (406) is fixedly installed on the side of the connecting block (404) away from the processing box (101). A drive frame (411) is slidably installed on the outer surface of the second vertical shaft (406). The end of the drive frame (411) away from the intermediate plate (407) is fixedly connected to the moving frame (204).

10. An automatic pressing device for stroller shoulder strap buckles according to claim 1, characterized in that, Four rotating blocks (501) are symmetrically fixedly installed on the lower side of the processing box (101). Each rotating block (501) has a rotating block (501) rotatably installed on its side. Each rotating block (501) has a positioning rod (503) slidably installed on its side. Each positioning rod (503) has an electric cylinder (504) fixedly installed on its inner wall. The telescopic end of the electric cylinder (504) is fixedly connected to the sliding rod (502).

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