Automatic assembling equipment for socket bottom cover

Abstract

The utility model relates to the technical field of assembling machines, in particular to automatic assembling equipment for a socket bottom cover. Comprising a machine table, a conveying mechanism, a carrier, a socket bottom cover supplying device, an assembling mechanical arm movably arranged at the output end of the socket bottom cover supplying device and above the carrier, a downward pressing mechanism erected above the conveying mechanism and two side pressing mechanisms located on the two sides of the carrier conveyed by the conveying mechanism. The assembling manipulator is used for assembling the socket bottom cover supplied by the socket bottom cover device on the socket main body carried by the carrier; the pressing mechanism presses the socket bottom cover down to the socket main body, so that the buckle of the socket main body is clamped with the clamping groove of the clamping groove plate of the socket bottom cover; the two side pressing mechanisms are used for pressing the two clamping groove plates of the socket bottom cover respectively. According to the utility model, the assembly of the socket main body and the socket bottom cover can be automatically realized, the clamping groove plate of the socket bottom cover can be corrected / shaped, and the assembly firmness and the assembly quality of the socket main body and the socket bottom cover are improved.

Description

Technical Field

[0001] This utility model relates to the field of assembly machine technology, and in particular to an automatic assembly device for socket bottom covers. Background Technology

[0002] A socket, also known as a power socket or switch socket, requires the assembly of a socket base cover and a socket body during its production. To improve the efficiency of this assembly, current technology typically uses automated assembly equipment. While various socket assembly machines exist, capable of assembling the socket body and base cover, the connection between them via snap-fit ​​mechanisms is prone to problems. These problems arise because the snap-fit ​​mechanism can easily deform outwards (e.g., the base cover's snap-fit ​​plate tilts outwards, or the snap-fit ​​mechanism can deform inwards (e.g., the snap-fit ​​plate tilts inwards). This can lead to insecure or inaccurate engagement, compromising assembly quality and stability. Therefore, a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an automatic assembly device for socket bottom covers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic socket bottom cover assembly device includes a machine base, a conveying mechanism mounted on the machine base, a carrier mounted on the conveying end of the conveying mechanism for carrying the socket body, a socket bottom cover supply device located on one side of the conveying mechanism, an assembly robot mounted on the machine base and movably mounted on the output end of the socket bottom cover supply device and above the carrier, a pressing mechanism mounted on the machine base and mounted above the carrier conveyed by the conveying mechanism, and two side pressing mechanisms oppositely mounted on the machine base and located on both sides of the carrier conveyed by the conveying mechanism. The assembly robot is used to assemble the socket bottom cover supplied by the socket bottom cover supply device onto the socket body carried by the carrier; the pressing mechanism is used to press the socket bottom cover down onto the socket body so that the snaps of the socket body engage with the snaps of the snap plates of the socket bottom cover; the two side pressing mechanisms are used to press the two snap plates of the socket bottom cover respectively.

[0006] Furthermore, the socket bottom cover device includes a vibratory plate located on the outside of the machine or installed on the machine, a material rail installed at the outlet of the vibratory plate, a linear vibrating feeder installed between the machine and the material rail, a baffle set at the output end of the material rail, and a sensor installed at the output end of the material rail. The sensor is connected to the assembly robot arm.

[0007] Furthermore, the output end of the feed rail is equipped with a feed port, and a baffle is located on the discharge side of the feed port.

[0008] Furthermore, the baffle is provided with a sensing hole, through which the sensor senses the bottom cover of the socket at the material dispensing port.

[0009] Furthermore, the assembly robot includes a mounting frame mounted on the machine base and spanning above the conveying mechanism, a translation seat translating on the mounting frame, a translation driver mounted on the mounting frame and used to drive the translation seat, a lifting driver mounted on the translation seat, and an assembly clamping mechanism connected to the lifting end of the lifting driver.

[0010] Furthermore, the assembly clamping mechanism includes a lifting plate installed on the lifting end of the lifting driver, a clamping driver installed on the lifting plate, and two clamping plates respectively installed on the two clamping ends of the clamping driver. The clamping driver is used to drive the two clamping plates to move closer or further apart from each other.

[0011] Furthermore, the assembly clamping mechanism also includes an angle adjuster mounted on the lifting plate, and a clamping driver mounted on the angle adjustment end of the angle adjuster. The angle adjuster is used to drive the clamping driver to rotate.

[0012] Furthermore, the pressing mechanism includes a bracket mounted on the machine base, a pressing driver mounted on the bracket, and a pressing plate mounted on the pressing end of the pressing driver. The pressing plate is raised and lowered above the carrier conveyed by the conveying mechanism. Side positioning plates are provided on both sides of the pressing plate, and the bottom end of the side positioning plates is chamfered.

[0013] Furthermore, the side pressing mechanism includes a fixed base mounted on the machine tool, a side pressing driver mounted on the fixed base, and a side pressing plate mounted on the side pressing drive end of the side pressing driver. The side pressing plate has a pressing part protruding from it, and the pressing part is used to press the slot plate of the socket bottom cover.

[0014] Furthermore, the support is equipped with an upper baffle plate, which is located between the assembly robot and the pressing mechanism. The upper baffle plate is located above the carrier conveyed by the conveying mechanism, and an upwardly inclined guide plate is provided on the side of the upper baffle plate near the assembly robot.

[0015] The beneficial effects of this utility model are as follows: In practical applications, the conveying mechanism transports the carrier carrying the socket body, and the socket bottom cover device supplies the socket bottom cover to the loading position. The assembly robot first picks up the socket bottom cover from the loading position, and then assembles the socket bottom cover onto the socket body carried by the carrier. The conveying mechanism transports the carrier, along with the initially assembled socket body and socket bottom cover, to below the pressing mechanism and between the two side pressing mechanisms. Then, the pressing end of the pressing mechanism presses the socket bottom cover down onto the socket body, so that the two sides of the socket body... The snap-fit ​​fasteners engage with the two slots on the bottom cover of the socket, and the side pressing ends of the two side pressing mechanisms press laterally on the two slots of the bottom cover to correct / shape them. This prevents the snap-fit ​​fasteners from failing to engage with the slots due to outward elastic deformation of the bottom cover, ensuring that the two snap-fit ​​fasteners of the socket body are securely engaged with the slots of the bottom cover. This achieves a firm assembly of the socket body and the bottom cover. This invention not only automates the assembly of the socket body and bottom cover but also corrects / shapes the slots of the bottom cover, improving the strength and quality of the assembly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the socket bottom cover device behind the hidden vibrating disc of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the assembly robot arm of this utility model picking up the bottom cover of the socket.

[0019] Figure 4 This is a three-dimensional structural diagram of the side pressing mechanism of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the pressing mechanism of this utility model.

[0021] Figure 6 This is an exploded structural diagram of the socket bottom cover and the socket body in this embodiment.

[0022] Figure 7 This is a schematic diagram of the assembly structure of the socket bottom cover and the socket body in this embodiment.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Machine base; 2. Conveying mechanism; 3. Carrier; 4. Socket bottom cover device; 5. Assembly robot; 6. Pressing mechanism; 7. Side pressing mechanism; 8. Buckle; 9. Slot plate; 10. Vibratory feeder; 11. Material rail; 12. Linear vibratory feeder; 13. Baffle; 14. Sensor; 15. Material inlet; 16. Sensing hole; 17. Mounting bracket; 18. Translation seat; 19. Translation driver; 20. Lifting driver; 2 1. Assembly clamping mechanism; 22. Lifting plate; 23. Clamping driver; 24. Clamping plate; 25. Angle adjuster; 26. Bracket; 27. Pressing driver; 28. Pressing plate; 29. ​​Side positioning plate; 30. Chamfer; 31. Fixing base; 32. Side pressing driver; 33. Side pressing plate; 34. Pressing part; 35. Upper blocking plate; 36. Guide plate; 37. Socket body; 38. Socket bottom cover; 39. Limiting plate. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0026] like Figures 1 to 7 As shown, the present invention provides an automatic assembly equipment for socket bottom covers, comprising a machine base 1, a conveying mechanism 2 mounted on the machine base 1, a carrier 3 mounted on the conveying end of the conveying mechanism 2 and used to carry the socket body 37, a socket bottom cover supply device 4 located on one side of the conveying mechanism 2, an assembly robot 5 mounted on the machine base 1 and movably mounted on the output end of the socket bottom cover supply device 4 and above the carrier 3, a pressing mechanism 6 mounted on the machine base 1 and mounted above the carrier 3 conveyed by the conveying mechanism 2, and a mechanism oppositely mounted on the machine base 1 and located on the conveying mechanism 2. The two side pressing mechanisms 7 on both sides of the conveying carrier 3 are used to assemble the socket bottom cover 38 supplied by the socket bottom cover device 4 onto the socket body 37 carried by the carrier 3; the pressing mechanism 6 is used to press the socket bottom cover 38 down onto the socket body 37 so that the buckle 8 of the socket body 37 engages with the slot of the slot plate 9 of the socket bottom cover 38; the two side pressing mechanisms 7 are used to press the two slot plates 9 of the socket bottom cover 38 respectively; specifically, the carrier 3 has multiple bearing cavities arranged in a straight line, and the bearing cavities are used to support the socket bottom cover 38.

[0027] In practical applications, the conveying mechanism 2 transports the carrier 3 carrying the socket body 37, and the socket bottom cover device 4 supplies the socket bottom cover 38 to the loading position. The assembly robot 5 first picks up the socket bottom cover 38 from the loading position, and then assembles the socket bottom cover 38 onto the socket body 37 carried by the carrier 3. The conveying mechanism 2 transports the carrier 3, along with the initially assembled socket body 37 and socket bottom cover 38, to the lower part of the pressing mechanism 6 and between the two side pressing mechanisms 7. Then, the pressing end of the pressing mechanism 6 presses the socket bottom cover 38 down onto the socket body 37, so that the two latches 8 of the socket body 37 respectively engage with the socket body 37. The two slotted plates 9 of the socket bottom cover 38 engage with each other, and the side pressing ends of the two side pressing mechanisms 7 respectively press the two slotted plates 9 of the socket bottom cover 38 laterally to correct / shape the slotted plates 9 of the socket bottom cover 38. This prevents the buckles 8 of the socket body 37 from failing to engage with the slotted plates 9 of the socket bottom cover 38 due to outward elastic deformation of the slotted plates 9, ensuring that the two buckles 8 of the socket body 37 can be firmly engaged with the slots of the two slotted plates 9 of the socket bottom cover 38, thereby achieving a secure assembly of the socket body 37 and the socket bottom cover 38. This utility model not only automates the assembly of the socket body 37 and the socket bottom cover 38, but also corrects / shapes the slotted plates 9 of the socket bottom cover 38, improving the firmness and quality of the assembly of the socket body 37 and the socket bottom cover 38.

[0028] In this embodiment, the socket bottom cover device 4 includes a vibratory plate 10 located on the outside of the machine base 1 or installed on the machine base 1, a material rail 11 installed at the outlet of the vibratory plate 10, a linear vibratory feeder 12 installed between the machine base 1 and the material rail 11, a baffle 13 set at the output end of the material rail 11, and a sensor 14 installed at the output end of the material rail 11. The sensor 14 is electrically connected to the assembly robot 5.

[0029] In practical applications, a large number of socket bottom covers 38 are placed in the vibratory feeder 10. The vibratory feeder 10 supplies the socket bottom covers 38 to the feed rail 11 in an orderly manner, so that the socket bottom covers 38 move along the feed rail 11. The linear vibrating feeder 12 drives the feed rail 11 to vibrate, so that the socket bottom covers 38 can move stably and smoothly along the feed rail 11 until the baffle 13 blocks the socket bottom covers 38 on the feed rail 11. At this time, the sensor 14 senses / detects the socket bottom cover 38 and sends a signal to the assembly robot 5, so that the assembly robot 5 picks up the socket bottom cover 38 and assembles the socket bottom cover 38 onto the socket body 37 carried by the carrier 3.

[0030] In this embodiment, the output end of the feed rail 11 is provided with a feeding port 15, and the baffle 13 is located on the discharge side of the feeding port 15. In practical applications, the baffle 13 blocks the socket bottom cover 38, at which time the socket bottom cover 38 is located at the feeding port 15, and the feeding port 15 facilitates the assembly robot 5 to pick up the socket bottom cover 38.

[0031] In this embodiment, the baffle 13 has a sensing hole 16, and the sensor 14 senses the socket bottom cover 38 at the material dispensing port 15 through the sensing hole 16. Specifically, the sensor 14 is a pair of photoelectric sensors. In practical applications, the sensor 14 senses / detects the socket bottom cover 38 at the material dispensing port 15 through the sensing hole 16.

[0032] In this embodiment, the assembly robot 5 includes a mounting frame 17 mounted on the machine base 1 and spanning across the conveying mechanism 2, a translation seat 18 translatably mounted on the mounting frame 17, a translation driver 19 mounted on the mounting frame 17 and used to drive the translation seat 18, a lifting driver 20 mounted on the translation seat 18, and an assembly clamping mechanism 21 connected to the lifting end of the lifting driver 20. Specifically, the mounting frame 17 is gantry-shaped.

[0033] In practical applications, the translation driver 19 drives the translation seat 18, along with the lifting driver 20 and the assembly clamping mechanism 21, to move above the material pick-up port 15. The socket bottom cover 38 at the material pick-up port 15 is located inside the clamping end of the assembly clamping mechanism 21. At this time, the assembly clamping mechanism 21 clamps the socket bottom cover 38. Then, the lifting driver 20 drives the assembly clamping mechanism 21 and the socket bottom cover 38 to rise. The translation driver 19 drives the lifting driver 20, the assembly clamping mechanism 21, and the socket bottom cover 38 to translate until the socket bottom cover 38 clamped by the assembly clamping mechanism 21 is above the socket body 37 carried by the carrier 3. Then, the lifting driver 20 drives the assembly clamping mechanism 21 and the socket bottom cover 38 to fall, so that the socket bottom cover 38 is initially assembled on the socket body 37.

[0034] In this embodiment, the assembly clamping mechanism 21 includes a lifting plate 22 mounted on the lifting end of the lifting driver 20, a clamping driver 23 mounted on the lifting plate 22, and two clamping plates 24 respectively mounted on the two clamping ends of the clamping driver 23. The clamping driver 23 is used to drive the two clamping plates 24 to move closer or further away from each other. In practical applications, when the socket bottom cover 38 is located between the two clamping plates 24, the clamping driver 23 drives the two clamping plates 24 to move closer to each other until the two clamping plates 24 clamp the socket bottom cover 38; after the assembly clamping mechanism 21 initially assembles the socket bottom cover 38 onto the socket body 37, the clamping driver 23 drives the two clamping plates 24 to move further away from each other to release / unlock the socket bottom cover 38.

[0035] In this embodiment, the assembly clamping mechanism 21 further includes an angle adjuster 25 mounted on the lifting plate 22, and a clamping driver 23 mounted on the angle adjustment end of the angle adjuster 25. The angle adjuster 25 is used to drive the clamping driver 23 to rotate. Specifically, the clamping driver 23 can be a finger cylinder, the angle adjuster 25 can be a motor or a rotary cylinder, and the translation driver 19 and the lifting driver 20 can both be linear motors or cylinders. In practical applications, when it is necessary to adjust the angle of the socket bottom cover 38 clamped by the two clamping plates 24, the angle adjuster 25 drives the clamping driver 23 to rotate along with the two clamping plates 24 and the socket bottom cover 38, so as to adjust the socket bottom cover 38 to the assembly angle position.

[0036] In this embodiment, the pressing mechanism 6 includes a bracket 26 mounted on the machine base 1, a pressing driver 27 mounted on the bracket 26, and a pressing plate 28 mounted on the pressing end of the pressing driver 27. The pressing plate 28 is raised and lowered above the carrier 3 conveyed by the conveying mechanism 2. Side positioning plates 29 are provided on both sides of the pressing plate 28, and the bottom end of the side positioning plate 29 is provided with a chamfer 30. Specifically, the pressing driver 27 can be a cylinder.

[0037] When the carrier 3 transports the pre-assembled socket body 37 and socket bottom cover 38 to the pressing mechanism 6, the pressing driver 27 drives the pressing plate 28 to move downward, so that the pressing plate 28 presses down on the pre-assembled socket bottom cover 38, thereby causing the socket bottom cover 38 and the socket body 37 to move relative to each other, so that the two buckles 8 of the socket body 37 respectively engage with the two slot plates 9 of the socket bottom cover 38; when the pressing plate 28 presses down on the socket bottom cover 38, the chamfer 30 plays a guiding and certain correction role, so that the side positioning plate 29 can block and position the side of the socket bottom cover 38 until the two buckles 8 of the socket body 37 respectively engage with the two slot plates 9 of the socket bottom cover 38.

[0038] In this embodiment, the side pressing mechanism 7 includes a fixed base 31 mounted on the machine base 1, a side pressing driver 32 mounted on the fixed base 31, and a side pressing plate 33 mounted on the side pressing drive end of the side pressing driver 32. The side pressing plate 33 has a protruding pressing part 34, which is used to press the slot plate 9 of the socket bottom cover 38. Specifically, the fixed base 31 is equipped with a limiting plate 39, which is used to limit the extreme position of the side pressing plate 33.

[0039] In practical applications, the side-pressing actuator 32 drives the side-pressing plate 33 to move closer to the slot plate 9 of the socket bottom cover 38, causing the pressing part 34 of the side-pressing plate 33 to press inward against the slot plate 9 of the socket bottom cover 38. This corrects / shapes the slot plate 9 of the socket bottom cover 38, ensuring that the two latches 8 of the socket body 37 can be securely engaged with the slots of the two slot plates 9 of the socket bottom cover 38, thereby achieving a secure assembly of the socket body 37 and the socket bottom cover 38. During the correction / shaping process of the pressing part 34 against the slot plate 9 of the socket bottom cover 38, when the limiting plate 39 blocks the side-pressing plate 33, it indicates that the pressing part 34 has completed the correction / shaping of the slot plate 9, thus limiting the extreme position of the side-pressing plate 33 and preventing excessive movement of the side-pressing plate 33 that could cause the slot plate 9 to deform in the opposite direction or be damaged.

[0040] In this embodiment, the bracket 26 is equipped with an upper baffle plate 35, which is located between the assembly robot 5 and the pressing mechanism 6. The upper baffle plate 35 is located above the carrier 3 conveyed by the conveying mechanism 2. An upwardly inclined guide plate 36 is provided on the side of the upper baffle plate 35 near the assembly robot 5. As the conveying mechanism 2 moves the carrier 3 along with the initially assembled socket body 37 and socket bottom cover 38, the initially assembled socket body 37 and socket bottom cover 38 will pass through the upper baffle plate 35. The guide plate 36 guides the socket bottom cover 38, which is conducive to the initially assembled socket body 37 and socket bottom cover 38 passing through the upper baffle plate 35. The upper baffle plate 35 limits the socket bottom cover 38 on the socket body 37, preventing the socket bottom cover 38 from shifting upward relative to the socket body 37.

[0041] Specifically, each side pressing plate 33 has two pressing parts 34, and the two pressing parts 34 simultaneously press the two slot plates 9 on the same side of the socket bottom cover 38, so that the side pressing mechanism 7 can correct / shape the four slot plates 9 of the socket bottom cover 38 at one time.

[0042] Specifically, a socket bottom cover 38 can be snapped into a socket body 37, and a socket bottom cover 38 can also be snapped into two adjacent socket bodies 37 simultaneously.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A socket bottom cover automatic assembly device, characterized in that: Includes a machine base (1), a conveying mechanism (2) mounted on the machine base (1), a carrier (3) mounted on the conveying end of the conveying mechanism (2) and used to carry the socket body (37), a socket bottom cover device (4) located on one side of the conveying mechanism (2), an assembly robot (5) mounted on the machine base (1) and movably mounted on the output end of the socket bottom cover device (4) and above the carrier (3), a pressing mechanism (6) mounted on the machine base (1) and mounted above the carrier (3) conveyed by the conveying mechanism (2), and a device oppositely mounted on the machine base (1) and located on the conveying end of the carrier (3). The two side pressing mechanisms (7) on both sides of the carrier (3) transported by the mechanism (2) are used to assemble the socket bottom cover (38) supplied by the socket bottom cover device (4) onto the socket body (37) carried by the carrier (3); the pressing mechanism (6) is used to press the socket bottom cover (38) down onto the socket body (37) so that the buckle (8) of the socket body (37) engages with the slot of the slot plate (9) of the socket bottom cover (38); the two side pressing mechanisms (7) are used to press the two slot plates (9) of the socket bottom cover (38) respectively.

2. The socket bottom cover automatic assembling equipment according to claim 1, characterized in that: The socket bottom cover device (4) includes a vibratory plate (10) located on the outside of the machine base (1) or installed on the machine base (1), a material rail (11) installed at the outlet of the vibratory plate (10), a linear vibratory feeder (12) installed between the machine base (1) and the material rail (11), a baffle (13) set at the output end of the material rail (11) and a sensor (14) installed at the output end of the material rail (11). The sensor (14) is electrically connected to the assembly robot (5).

3. The socket bottom cover automatic assembling apparatus according to claim 2, characterized in that: The output end of the feed rail (11) is provided with a feed inlet (15), and the baffle (13) is located on the discharge side of the feed inlet (15).

4. The socket bottom cover automatic assembling apparatus according to claim 3, characterized in that: The baffle (13) has a sensing hole (16), and the sensor (14) senses the bottom cover (38) of the socket at the material handling port (15) through the sensing hole (16).

5. The automatic assembly equipment for socket bottom covers according to claim 1, characterized in that: The assembly robot (5) includes a mounting frame (17) mounted on the machine base (1) and spanning above the conveying mechanism (2), a translation seat (18) translatably mounted on the mounting frame (17), a translation driver (19) mounted on the mounting frame (17) and used to drive the translation seat (18), a lifting driver (20) mounted on the translation seat (18), and an assembly clamping mechanism (21) connected to the lifting end of the lifting driver (20).

6. The socket bottom cover automatic assembly device according to claim 5, characterized in that: The assembly clamping mechanism (21) includes a lifting plate (22) installed on the lifting end of the lifting driver (20), a clamping driver (23) installed on the lifting plate (22), and two clamping plates (24) respectively installed on the two clamping ends of the clamping driver (23). The clamping driver (23) is used to drive the two clamping plates (24) to move closer or further away from each other.

7. The socket bottom cover automatic assembly device according to claim 6, characterized in that: The assembly clamping mechanism (21) also includes an angle adjuster (25) mounted on the lifting plate (22), and a clamping driver (23) mounted on the angle adjustment end of the angle adjuster (25). The angle adjuster (25) is used to drive the clamping driver (23) to rotate.

8. The socket bottom cover automatic assembly device according to claim 1, characterized in that: The pressing mechanism (6) includes a bracket (26) mounted on the machine base (1), a pressing driver (27) mounted on the bracket (26), and a pressing plate (28) mounted on the pressing end of the pressing driver (27). The pressing plate (28) is raised and lowered above the carrier (3) conveyed by the conveying mechanism (2). Side positioning plates (29) are provided on both sides of the pressing plate (28), and the bottom end of the side positioning plate (29) is provided with a chamfer (30).

9. The automatic assembly equipment for socket bottom covers according to claim 1, characterized in that: The side pressing mechanism (7) includes a fixed base (31) mounted on the machine base (1), a side pressing driver (32) mounted on the fixed base (31), and a side pressing plate (33) mounted on the side pressing drive end of the side pressing driver (32). The side pressing plate (33) has a pressing part (34) protruding from it. The pressing part (34) is used to press the slot plate (9) of the socket bottom cover (38).

10. The socket bottom cover automatic assembly apparatus according to claim 8, characterized in that: The bracket (26) is equipped with an upper baffle plate (35), which is located between the assembly robot (5) and the pressing mechanism (6). The upper baffle plate (35) is located above the carrier (3) conveyed by the conveying mechanism (2). An upwardly inclined guide plate (36) is provided on the side of the upper baffle plate (35) near the assembly robot (5).

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