Screw drop prevention pad assembly apparatus

Abstract

The application provides a screw anti-drop gasket assembly equipment, which comprises a rotating disc arranged on a rack and is provided with a punching station, a pre-assembly station, an assembly station and a discharging station. The punching station is provided with a first feeding mechanism and a punching mechanism, the pre-assembly station is provided with a second feeding mechanism, the assembly station is provided with an assembly mechanism, and the discharging station is provided with a discharging mechanism. A plurality of material placing carriers are circumferentially arranged on the rotating disc, the plurality of material placing carriers rotate with the rotating disc and pass through the punching station, the pre-assembly station, the assembly station and the discharging station in sequence. The first feeding mechanism is used for conveying a material belt to the punching mechanism, the punching mechanism punches a gasket on the material belt and places the gasket in the material placing carrier. The gasket rotates to the pre-assembly station with the material placing carrier, the second feeding mechanism feeds a cover plate to the material placing carrier to cooperate with the gasket. The assembly mechanism assembles a screw on the cover plate and connects the screw to the gasket to form a cover plate assembly, and the discharging mechanism is used for picking up the cover plate assembly for discharging.

Description

Technical Field

[0001] This invention relates to the field of toy manufacturing technology, and in particular to a screw anti-drop washer assembly device. Background Technology

[0002] With the increasing popularity of electric toys, many require the removal of the battery compartment cover for battery replacement. The screws in toy battery compartments are very small, and if they completely detach and are picked up by infants or toddlers, there is a risk of accidental swallowing. Furthermore, toy screws are small and light, making them extremely difficult to find if dropped on the floor or carpet. Designing anti-drop washers ensures the screws remain attached to the cover, avoiding the hassle of searching for fallen screws.

[0003] In existing technologies, gaskets are pre-formed, and then manually assembled with screws and cover plates after the screws are fitted. Anti-detachment gaskets are typically small and thin, making manual installation laborious and prone to deformation or damage, affecting product quality. Alternatively, gaskets are placed on assembly fixtures manually or using automated feeding mechanisms. Screws are first passed through and secured to the cover plate, and then the fixture is used to quickly and accurately press the gasket into the screw's protruding rod inside the cover plate. However, the pre-formed gaskets are small, making it difficult for automated feeding equipment like vibratory feeders to provide stable feeding, and many steps still rely on manual labor, slowing down production line efficiency. Furthermore, the small size of the gaskets makes proper placement and positioning difficult, resulting in inconvenience during assembly.

[0004] Therefore, it is necessary to provide a screw anti-drop washer assembly equipment that can better shape and position the washer, making assembly more convenient and efficient. Summary of the Invention

[0005] The purpose of this invention is to provide a screw anti-drop washer assembly device that can better shape and position the washer, making assembly more convenient and efficient.

[0006] To achieve the above objectives, the present invention provides a screw anti-drop washer assembly device, including a turntable mounted on a frame. A punching station, a pre-assembly station, an assembly station, and a unloading station are sequentially arranged along the circumference of the turntable in its rotation direction. The punching station is equipped with a first feeding mechanism and a punching mechanism; the pre-assembly station is equipped with a second feeding mechanism; the assembly station is equipped with an assembly mechanism; and the unloading station is equipped with an unloading mechanism. Multiple unloading carriers for feeding materials are arranged circumferentially on the turntable. The turntable rotates to drive the multiple unloading carriers sequentially through the punching station, pre-assembly station, assembly station, and unloading station. The first feeding mechanism conveys the material strip to the punching mechanism, which cooperates with the unloading carrier below it to punch out a gasket on the material strip and place the gasket in the unloading carrier. The unloading carrier with the gasket rotates with the turntable to the pre-assembly station. The second feeding mechanism feeds the cover plate onto the unloading carrier for pre-fitting with the gasket. The unloading carrier with the gasket and cover plate rotates with the turntable to the assembly station. The assembly mechanism assembles the screws onto the cover plate and connects the screws to the gasket to form a cover plate assembly with an integrated structure. The cover plate assembly rotates with the turntable to the unloading station, where the unloading mechanism picks up the cover plate assembly and unloads it.

[0007] Compared with existing technologies, the screw anti-drop washer assembly equipment of the present invention includes a turntable mounted on a frame. A punching station, a pre-assembly station, an assembly station, and a unloading station are sequentially arranged along the circumference of the turntable in its rotation direction. Multiple unloading carriers for feeding material are arranged circumferentially on the turntable. The turntable drives the unloading carriers to circulate among the multiple stations, resulting in a reasonable structure and high efficiency. The punching station is equipped with a first feeding mechanism and a punching mechanism. The first feeding mechanism feeds the material strip, and the punching mechanism punches out washer pieces from the material strip and places the washer into the unloading carrier. The pre-assembly station is equipped with a second feeding mechanism, which feeds the cover plate onto the unloading carrier for pre-fitting with the washer. The assembly station is equipped with an assembly mechanism, which assembles the screws onto the cover plate and connects the screws to the washer to form an integral cover plate assembly. The unloading station is equipped with an unloading mechanism to unload the assembled cover plate assembly. The screw anti-drop washer assembly equipment of the present invention allows the washer to be used immediately after being punched, with good positioning effect, not easy to deform, good assembly effect, and the equipment has a high degree of automation, making assembly more convenient and efficient.

[0008] Preferably, the punching mechanism includes a first guide component, a positioning component, a punching component, a second guide component, and a cutting component. The first guide component is located on the side of the positioning component near the first feeding mechanism. The first guide component guides the material strip into the positioning component, and the positioning component positions the material strip so that the punching component can punch out the gasket on the material strip. The second guide component is located on the side of the positioning component away from the first guide component. The second guide component guides the material strip after the gasket has been cut to the unloading hole for unloading. The side of the positioning component near the second guide component has a gradually decreasing cross-section structure to facilitate guiding the material strip from the positioning component into the second guide component. The cutting component is located on the side of the second guide component away from the positioning component and is used to cut the material strip after the gasket has been cut to a preset length for unloading.

[0009] Preferably, the positioning component includes a first positioning member and a second positioning member. The first positioning member has a groove extending through the direction of the feed strip on the side facing the second positioning member, so as to cooperate with the second positioning member to form a feed channel for the feed strip to carry material.

[0010] Preferably, the punching assembly includes a punching part and a punching part that can move vertically. A first positioning part has a first punching position and a first punching position through it, and a second positioning part has a second punching position and a second punching position. The second punching position is a blind hole, and the second punching position passes through the second positioning part. The first punching position and the second punching position are coaxially arranged, and the first punching position and the second punching position are coaxially arranged. The strip is conveyed along the feed channel and passes through the punching part and the punching part in sequence. The punching part passes through the first punching position and the second punching position in sequence to punch out the inner hole of the gasket on the strip. The punching part passes through the first punching position and the second punching position in sequence to punch out the gasket on the strip with the inner hole.

[0011] Preferably, the second positioning member is further provided with a through groove communicating with the second punching position. The through groove is perpendicular to the second punching position and passes through the second positioning member. By blowing air into the through groove, the waste material in the second punching position is blown out of the second positioning member.

[0012] Preferably, the second positioning member has a protrusion extending towards the side of the feeding carrier, and the protrusion has a channel communicating with the second punching position. The feeding carrier has a material groove for placing the gasket, which is located below the channel. The punching member passes through the channel to push the gasket onto the material groove.

[0013] Preferably, a vacuum adsorption component is provided inside the material feeding carrier. The vacuum adsorption component is connected to the material trough, and the placement of the pad in the material trough is reinforced by the vacuum adsorption component.

[0014] Preferably, the second positioning member has an installation groove, in which a molded part is detachably installed. The molded part has a first molding hole and a second molding hole through it. The first molding hole is coaxially arranged with the first punching position and the second punching position, and the second molding hole is coaxially arranged with the first punching position and the second punching position.

[0015] Preferably, the pre-assembly station is also equipped with a material picking robot. The second feeding mechanism automatically feeds the cover plate to the preset position. The material picking robot picks up the cover plate at the preset position and places the cover plate on the unloading carrier. The unloading carrier is equipped with a unloading position for placing the cover plate. The cover plate is placed on the unloading position and is positioned above the gasket and pre-aligned with the gasket.

[0016] Preferably, the assembly mechanism includes an automatic screw feeding and tightening assembly and a pressing assembly. The pressing assembly is located on one side of the automatic screw feeding and tightening assembly and includes a pressing suction cup for pressing the screw. The pressing suction cup presses the positioning cover plate. The automatic screw feeding and tightening assembly automatically feeds the screw and assembles the screw onto the cover plate and the washer to form an integrated cover plate assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of a screw anti-drop washer assembly device provided in an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A structural diagram from another angle.

[0020] Figure 3 yes Figure 1 Structural diagram of the first feeding mechanism and the punching mechanism.

[0021] Figure 4 yes Figure 3 Structure diagram of the positioning component.

[0022] Figure 5 yes Figure 4 A cross-sectional view at an angle.

[0023] Figure 6 yes Figure 4 Structural diagram of the first positioning component.

[0024] Figure 7 yes Figure 4 Structural diagram of the second positioning component.

[0025] Figure 8 yes Figure 1 Structural diagram of the material feeding carrier.

[0026] Figure 9 yes Figure 1 The structural diagram with the first feeding mechanism and the punching mechanism removed.

[0027] Explanation of reference numerals in the attached figures: 100. Screw anti-drop washer assembly equipment; 1001. Frame; 1002. Washer; 1003. Cover plate; 10. Turntable; 101. Punching station; 102. Pre-assembly station; 103. Assembly station; 104. Unloading station; 11. Unloading carrier; 111. Material trough; 112. Unloading position; 113. Vacuum adsorption assembly; 114. Positioning block; 20. First feeding mechanism; 30. Punching mechanism; 31. First guide assembly; 32. Positioning assembly; 320. Material channel; 321. First positioning element; 3211. First punching position; 3212. First punching position; 3213. Groove; 322. Second positioning element; 3221. Protrusion; 3222. Second punching position; 3223. Second punching position; 3224. Through groove; 3225. Mounting groove; 323. Forming part; 3231. First forming hole; 3232. Second forming hole; 33. Punching assembly; 331. Punching part; 332. Punching part; 34. Second guide assembly; 35. Cutting assembly; 40. Second feeding mechanism; 50. Material handling robot; 60. Assembly mechanism; 61. Automatic screw feeding and tightening assembly; 62. Material pressing assembly; 70. Unloading mechanism. Detailed Implementation

[0028] To illustrate the technical content and structural features of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please see Figure 1 and Figure 2This invention provides a screw anti-drop washer assembly device 100, including a turntable 10 mounted on a frame 1001. A punching station 101, a pre-assembly station 102, an assembly station 103, and a unloading station 104 are sequentially arranged along the circumference of the turntable 10 in its rotation direction. The punching station 101 is equipped with a first feeding mechanism 20 and a punching mechanism 30; the pre-assembly station 102 is equipped with a second feeding mechanism 40; the assembly station 103 is equipped with an assembly mechanism 60; and the unloading station 104 is equipped with an unloading mechanism 70. Multiple unloading carriers 11 are arranged circumferentially on the turntable 10 for unloading materials. These carriers 11 can be evenly distributed on the turntable 10 at certain intervals. The number of unloading carriers 11 can be four, ensuring that each station has a corresponding unloading carrier 11 for operation, thus improving efficiency. Of course, the number of unloading carriers 11 can also be set to be greater than four or less than four, depending on actual production needs. The turntable 10 rotates to drive multiple unloading carriers 11 to pass sequentially through the punching station 101, the pre-assembly station 102, the assembly station 103, and the unloading station 104. The unloading carriers 11 receive the gaskets 1002 at the punching station 101, place the cover plate 1003 at the pre-assembly station 102, assemble screws at the assembly station 103, and unload the material at the unloading station 104. Specifically, the first feeding mechanism 20 is used to convey the material strip to the punching mechanism 30. The punching mechanism 30 cooperates with the unloading carriers 11 below it to punch out the gaskets 1002 from the material strip and place the punched gaskets 1002 into the unloading carriers 11. Then, the feeding carrier 11, with the gasket 1002 placed on it, rotates with the turntable 10 to the pre-assembly station 102. The second feeding mechanism 40 feeds the cover plate 1003 onto the feeding carrier 11 for pre-fitting with the gasket 1002. Next, the feeding carrier 11, with the gasket 1002 and cover plate 1003 placed on it, rotates with the turntable 10 to the assembly station 103. The assembly mechanism 60 assembles screws onto the cover plate 1003 and connects the screws to the gasket 1002 to form a cover plate assembly with an integral structure. Finally, the cover plate assembly rotates with the turntable 10 to the unloading station 104, where the unloading mechanism 70 picks up the cover plate assembly and unloads it. For example, the cover plate 1003 can be a battery cover or other detachable cover plate components that require screws for installation.

[0030] Compared with the prior art, the screw anti-drop washer assembly equipment 100 of the present invention includes a turntable 10 mounted on a frame 1001. A punching station 101, a pre-assembly station 102, an assembly station 103, and a unloading station 104 are sequentially arranged along the circumference of the turntable 10 in its rotation direction. Multiple unloading carriers 11 are arranged circumferentially on the turntable 10 for unloading materials. The turntable 10 drives the unloading carriers to circulate among the multiple stations, resulting in a reasonable structure and high efficiency. The punching station 101 is equipped with a first feeding mechanism 20 and a punching mechanism 30. The first feeding mechanism 20 is used for feeding the material strip, and the punching mechanism 30 is used to punch out washer 1002 from the material strip and place the washer 1002 into the unloading carrier 11. A second feeding mechanism 40 is provided on the pre-assembly station 102. The second feeding mechanism 40 feeds the cover plate 1003 onto the unloading carrier 11 for pre-fitting with the gasket 1002. An assembly mechanism 60 is provided on the assembly station 103. The assembly mechanism 60 assembles screws onto the cover plate 1003 and connects the screws to the gasket 1002 to form a cover plate assembly with an integrated structure. An unloading mechanism 70 is provided on the unloading station 104 to unload the assembled cover plate assembly. The screw anti-drop gasket assembly equipment 100 of the present invention allows the gasket 1002 to be used immediately after being punched, with good positioning effect, not easy to deform, good assembly effect, and high degree of automation, making assembly more convenient and efficient.

[0031] Please see Figures 3 to 7 In some optional embodiments, the punching mechanism 30 includes a first guide component 31, a positioning component 32, and a punching component 33. The first guide component 31 is disposed on the side of the positioning component 32 near the first feeding mechanism 20. The first guide component 31 is used to guide the material strip into the positioning component 32. The positioning component 32 is used to position the material strip so that the punching component 33 can punch out the gasket 1002 on the material strip. On the other hand, the punching mechanism 30 also includes a second guide component 34 and a cutting component 35. The second guide component 34 is disposed on the side of the positioning component 32 away from the first guide component 31. The second guide component 34 is used to guide the material strip after cutting the gasket 1002 to the unloading hole for unloading. The unloading hole is opened on the frame 1001 and is close to the second guide component 34. The side of the positioning component 32 near the second guide component 34 has a gradually decreasing cross-section structure to facilitate guiding the material strip from the positioning component 32 into the second guide component 34, which can better match the material feeding. The cutting component 35 is located on the side of the second guide component 34 away from the positioning component 32. It is used to cut the material strip of the gasket 1002 to a preset length for feeding, so as to prevent the material strip from being too long and getting tangled, which would affect feeding. The first guide component 31 and the second guide component 34 are both equipped with guide wheels, which drive the plastic material channel 320 to be conveyed through the transmission component.

[0032] Please see Figures 3 to 6In some optional embodiments, the positioning component 32 includes a first positioning member 321 and a second positioning member 322. The first positioning member 321 has a groove 3213 extending through it along the direction of the material strip on its side facing the second positioning member 322, to cooperate with the second positioning member 322 to form a feeding channel 320 for the material conveyor belt. The thickness and width of the feeding channel 320 are slightly greater than the thickness and width of the material strip to allow the material strip to flow within the feeding channel 320. The material strip can be a plastic material strip, and the gasket 1002 can be a plastic gasket 1002; alternatively, depending on actual usage requirements, the material strip can be a metal material strip, and the gasket 1002 can be a metal gasket 1002.

[0033] Please see Figures 3 to 7In some optional embodiments, the punching assembly 33 includes a punching member 331 and a punching member 332 that can move vertically. A first positioning member 321 has a first punching position 3211 and a first punching position 3212 extending through it. On the other hand, a second positioning member 322 has a second punching position 3222 and a second punching position 3223. The second punching position 3222 is a blind hole, and the second punching position 3223 extends through the second positioning member 322. The first punching position 3211 and the second punching position 3222 are coaxially arranged, and the first punching position 3212 and the second punching position 3223 are coaxially arranged. Specifically, the strip is conveyed along the feed channel 320 and passes through the punching member 331 and the punching member 332 in sequence. The punching member 331 passes through the first punching position 3211 and the second punching position 3222 in sequence to punch out the inner hole of the gasket 1002 on the strip. The punching part 332 passes sequentially through the first punching position 3212 and the second punching position 3223 to punch out a gasket 1002 from a strip with an inner hole. It is understood that the gasket 1002 has an inner hole at its center. The inner hole is pre-formed on the strip, and then the gasket 1002 is punched out. The formed gasket 1002 is then pushed into the unloading carrier 11, resulting in a reasonable structural design. Specifically, the punching part 331 and the punching part 332 move up and down synchronously, and the length of the punching part 332 is longer than the length of the punching part 331. After the first gasket 1002 punches out of the inner hole, it reaches the punching position. Simultaneously, while the first gasket 1002 is being punched, the second part is being punched at the punching position. Because the punching part 332 needs to push the gasket 1002 onto the unloading carrier 11, the length of the punching part 332 is longer than the length of the punching part 331. The second positioning member 322 has a mounting groove 3225, and a molded member 323 is detachably mounted in the mounting groove 3225. The molded member 323 has a first molding hole 3231 and a second molding hole 3232, both penetrating the molded member 323. The first molding hole 3231 is aligned with the first punching position 3211 and the second punching position 3222, and the second molding hole 3232 is aligned with the first cutting position 3212 and the second cutting position 3223. The molded member 323 is detachably mounted in the mounting groove 3225, facilitating replacement when worn during use without directly replacing the second positioning member 322, thus simplifying operation and saving costs.

[0034] Please see Figures 3 to 7In some optional embodiments, the second positioning member 322 is further provided with a through groove 3224 communicating with the second punching position 3222. The through groove 3224 is perpendicular to the second punching position 3222 and passes through the second positioning member 322. By blowing air into the through groove 3224, the waste material in the second punching position 3222 is blown out of the second positioning member 3222. It can be understood that the first punching position 3211 and the second punching position 3222 are coaxially arranged to allow the punching member 331 to punch out the inner hole of the gasket 1002 on the strip. The second punching position 3222 is a blind hole. The waste material punched out of the inner hole can remain in the second positioning member 322 to prevent it from falling into the lower unloading carrier 11 and affecting the unloading and positioning of the overall components. The through slot 3224 can be connected to the fixed seat of the punching mechanism 30. The fixed seat is equipped with a scrap frame for accommodating the scrap from the inner hole. The scrap frame can be removed from the rear of the fixed seat to process the scrap. The structure is reasonable and the operation is convenient.

[0035] Please see Figures 3 to 8 In some optional embodiments, the second positioning member 322 has a protrusion 3221 extending towards the side of the feeding carrier 11. The protrusion 3221 can be integrally formed with the second positioning member 322. A channel communicating with the second punching position 3223 is opened in the protrusion 3221. On the other hand, the feeding carrier 11 is provided with a material groove 111 for placing the gasket 1002. When the turntable 10 rotates the feeding carrier 11 to the punching position 101, the material groove 111 is located below the channel. The strip is formed by passing through the punching member 331 and the punching member 332 in sequence. After punching the gasket 1002, the punching member 332 passes through the channel and pushes the gasket 1002 onto the material groove 111. The operation is convenient and there is no need to feed the gasket 1002 a second time. This can better protect the gasket 1002 and prevent the gasket 1002 from being deformed during the secondary loading and unloading process, which would affect the appearance. Especially for plastic gaskets 1002, deformation during material handling is common, affecting appearance and even usability, thus reducing yield. The gaskets 1002 of this invention are directly molded and assembled, making them more convenient, efficient, and yielding a higher quality. Specifically, a vacuum adsorption component 113 is provided within the material handling carrier 11, connected to the material trough 111. The vacuum adsorption component 113 reinforces the placement of the gasket 1002 within the material trough 111. The vacuum adsorption component 113 adsorbs the gasket 1002, allowing for better material handling within the material trough 111 and improved positioning, resulting in better subsequent engagement with the cover plate 1003 and screws.

[0036] Please see Figure 8 and Figure 9In some optional embodiments, a material-picking robot 50 is also provided on the pre-assembly station 102. A second feeding mechanism 40 automatically feeds the cover plate 1003 to a preset position. The second feeding mechanism 40 can be an automatic feeding vibratory feeder mechanism, and the preset position can be the end of the vibratory feeder channel 320. The vibratory feeder automatically feeds the cover plate 1003, and the material-picking robot 50 identifies the orientation of the cover plate 1003 at the preset position and picks it up, placing it on the unloading carrier 11 and pre-positioning it with the pad 1002. The material-picking robot 50 uses a suction cup to pick up the cover plate 1003 to avoid damaging its surface. The unloading carrier 11 is provided with a unloading position 112 for placing the cover plate 1003, and positioning blocks 114 for positioning the cover plate 1003 are provided on both sides of the unloading position 112, ensuring stable unloading of the cover plate 1003. The cover plate 1003 is placed on the material feeding position 112 and positioned above the gasket 1002, pre-positioned with the gasket 1002.

[0037] Please see Figure 9 In some optional embodiments, the assembly mechanism 60 includes an automatic screw feeding and tightening assembly 61 and a pressing assembly 62. The pressing assembly 62 is positioned on one side of the automatic screw feeding and tightening assembly 61, and the pressing assembly 62 and the automatic screw feeding and tightening assembly 61 move up and down synchronously. When the automatic screw feeding and tightening assembly 61 approaches the feeding carrier 11 to feed and tighten screws, the pressing assembly 62 and the automatic screw feeding and tightening assembly 61 move synchronously and press against the cover plate 1003 for operation by the automatic screw feeding and tightening assembly 61. The structure is reasonably designed and the operation is convenient and quick. Specifically, the pressing assembly 62 includes a pressing suction cup for pressing the screw. The pressing suction cup presses and positions the cover plate 1003, and the automatic screw feeding and tightening assembly 61 automatically feeds the screw and assembles the screw onto the cover plate 1003 and the gasket 1002 to form an integrated cover plate assembly. The overall structure is reasonably designed, the fit is stable and reliable, assembly is convenient, and the assembly effect is good.

[0038] Please see Figure 9 In some optional embodiments, the unloading mechanism 70 uses a suction cup to pick up the cover plate assembly for unloading. In this embodiment, the picking robot 50, the pressing assembly 62, and the unloading mechanism 70 all use suction cups to contact the cover plate 1003 to avoid scratching it. After the unloading mechanism 70 picks up the cover plate assembly, it uses an air blowing assembly to clean the material trough 111 and the unloading position 112 on the unloading carrier 11 to ensure that there is no other dust or waste on the material trough 111 and the unloading position 112. After being cleaned by air blowing, the unloading carrier 11 continues to rotate with the turntable 10 for unloading and assembly.

[0039] like Figures 1 to 9As shown, the screw anti-drop washer assembly equipment 100 of the present invention includes a turntable 10 mounted on a frame 1001. A punching station 101, a pre-assembly station 102, an assembly station 103, and a unloading station 104 are sequentially arranged along the circumference of the turntable 10 in its rotation direction. Multiple unloading carriers 11 for unloading materials are arranged circumferentially on the turntable 10. The turntable 10 drives the unloading carriers to circulate among the multiple stations, resulting in a reasonable structure and high efficiency. The punching station 101 is equipped with a first feeding mechanism 20 and a punching mechanism 30. The first feeding mechanism 20 is used for feeding the material strip, and the punching mechanism 30 is used to punch out washer 1002 from the material strip and place the washer 1002 into the unloading carrier 11. After the gasket 1002 is formed, it is directly placed into the feeding carrier 11 for assembly with the cover plate 1003 and screws. This eliminates the need for secondary loading and unloading, making operation more convenient and preventing deformation of the gasket 1002 during the loading and unloading process, resulting in higher yield and better assembly. A second feeding mechanism 40 is provided on the pre-assembly station 102 to feed the cover plate 1003 onto the feeding carrier 11 for pre-fitting with the gasket 1002. An assembly mechanism 60 is provided on the assembly station 103 to assemble the screws onto the cover plate 1003 and connect them to the gasket 1002 to form a one-piece cover plate assembly. An unloading mechanism 70 is provided on the unloading station 104 to unload the assembled cover plate assembly. The screw anti-drop washer assembly equipment 100 of the present invention provides washer 1002 that is ready to use immediately, has good positioning effect, is not easily deformed, has good assembly effect, and the equipment has a high degree of automation, making assembly more convenient and efficient, greatly improving efficiency and yield.

[0040] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A screw drop prevention pad assembly apparatus, characterized by, The system includes a turntable mounted on a frame. Along its circumference and direction of rotation, a punching station, a pre-assembly station, an assembly station, and a unloading station are arranged sequentially. The punching station is equipped with a first feeding mechanism and a punching mechanism. The pre-assembly station is equipped with a second feeding mechanism. The assembly station is equipped with an assembly mechanism, and the unloading station is equipped with an unloading mechanism. Multiple feeding carriers for unloading material are arranged circumferentially on the turntable. The turntable rotates to drive the feeding carriers sequentially through the punching station, the pre-assembly station, the assembly station, and the unloading station. The first feeding mechanism conveys the material strip to the punching mechanism. The mechanism cooperates with the feeding carrier below it to punch out a gasket on the material strip and place the gasket inside the feeding carrier. The feeding carrier with the gasket is rotated with the turntable to the pre-assembly station. The second feeding mechanism feeds the cover plate onto the feeding carrier to pre-fit with the gasket. The feeding carrier with the gasket and the cover plate is rotated with the turntable to the assembly station. The assembly mechanism assembles screws onto the cover plate and connects the screws to the gasket to form an integral cover plate assembly. The cover plate assembly is rotated with the turntable to the unloading station. The unloading mechanism picks up the cover plate assembly and unloads it.

2. The screw drop prevention pad assembly apparatus of claim 1, wherein, The punching mechanism includes a first guide component, a positioning component, a punching component, a second guide component, and a cutting component. The first guide component is located on the side of the positioning component near the first feeding mechanism. The first guide component guides the material strip into the positioning component, and the positioning component positions the material strip so that the punching component can punch out the gasket on the material strip. The second guide component is located on the side of the positioning component away from the first guide component. The second guide component guides the material strip after the gasket has been cut to the unloading hole for unloading. The side of the positioning component near the second guide component has a gradually decreasing cross-section to facilitate guiding the material strip from the positioning component into the second guide component. The cutting component is located on the side of the second guide component away from the positioning component and is used to cut the material strip after the gasket has been cut to a preset length for unloading.

3. The screw drop prevention pad assembly apparatus of claim 2, wherein, The positioning component includes a first positioning element and a second positioning element. The first positioning element has a groove extending through the direction of the material strip on one side facing the second positioning element, so as to cooperate with the second positioning element to form a material channel for the material strip to carry material.

4. The screw anti-loosening washer assembly equipment according to claim 3, characterized in that, The punching assembly includes a punching part and a punching part that can move vertically. The first positioning part has a first punching position and a first punching position through it. The second positioning part has a second punching position and a second punching position. The second punching position is a blind hole, and the second punching position passes through the second positioning part. The first punching position and the second punching position are coaxially arranged, and the first punching position and the second punching position are coaxially arranged. The strip is conveyed along the material channel and passes through the punching part and the punching part in sequence. The punching part passes through the first punching position and the second punching position in sequence to punch out the inner hole of the gasket on the strip. The punching part passes through the first punching position and the second punching position in sequence to punch out the gasket on the strip with the inner hole formed.

5. The screw anti-loosening washer assembly equipment according to claim 4, characterized in that, The second positioning member is also provided with a through groove communicating with the second punching position. The through groove is perpendicular to the second punching position and passes through the second positioning member. By blowing air into the through groove, the waste material in the second punching position is blown out of the second positioning member.

6. The screw anti-drop washer assembly equipment according to claim 4, characterized in that, The second positioning member has a protrusion extending towards the side of the feeding carrier. The protrusion has a channel communicating with the second punching position. The feeding carrier has a material groove for placing the gasket. The material groove is located below the channel. The punching member passes through the channel to push the gasket onto the material groove.

7. The screw anti-drop washer assembly equipment according to claim 6, characterized in that, The material feeding carrier is equipped with a vacuum adsorption component, which is connected to the material trough. The vacuum adsorption component is used to reinforce the placement of the gasket in the material trough.

8. The screw anti-loosening washer assembly equipment according to claim 4, characterized in that, The second positioning member has an installation groove, and a molded part is detachably installed in the installation groove. The molded part has a first molding hole and a second molding hole through it. The first molding hole is coaxially arranged with the first punching position and the second punching position, and the second molding hole is coaxially arranged with the first punching position and the second punching position.

9. The screw anti-loosening washer assembly equipment according to claim 1, characterized in that, The pre-assembly station is also equipped with a material-picking robot. The second feeding mechanism automatically feeds the cover plate to a preset position. The material-picking robot picks up the cover plate at the preset position and places the cover plate on the unloading carrier. The unloading carrier is provided with a unloading position for placing the cover plate. The cover plate is placed on the unloading position and is positioned above the gasket and pre-positioned with the gasket.

10. The screw anti-drop washer assembly equipment according to claim 1, characterized in that, The assembly mechanism includes an automatic screw feeding and tightening assembly and a pressing assembly. The pressing assembly is located on one side of the automatic screw feeding and tightening assembly. The pressing assembly includes a pressing suction cup for pressing the material. The pressing suction cup presses and positions the cover plate. The automatic screw feeding and tightening assembly automatically feeds the screw and assembles the screw onto the cover plate and the gasket to form an integral cover plate assembly.

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