Automatic assembly device for wire reel cover and its usage method

Abstract

This invention discloses an automatic assembly device for wire reel cover plates and its usage method, comprising: an injection molding machine; a wire reel gripping robot; a wire reel cooling conveyor belt; a negative pressure box is provided at the end of the wire reel cooling conveyor belt away from the injection molding machine, and a feed inlet is provided at the end of the negative pressure box near the injection molding machine. Openings for cover plates to enter are respectively provided on both sides of the negative pressure box. Two cover plate conveying devices are provided on both sides of the wire reel cooling conveyor belt. The two cover plate conveying devices are used to move the cover plates vertically to the openings where they are sucked into the negative pressure box. A cover plate storage box is provided between the two cover plate conveying devices, and the cover plate storage box is used to store cover plates and distribute them to the two cover plate conveying devices. The beneficial effect of this invention is that the wire reel production is fully automated. The wire reel is placed horizontally into the negative pressure box, and the cover plates enter the negative pressure box from both sides as needed, corresponding to the positions of the wire reel. An ultrasonic welding machine is then started for welding, improving the assembly efficiency of the cover plates and wire reels.

Description

Technical Field

[0001] This invention relates to the field of wire reel processing, and more particularly to an automatic assembly device for wire reel cover plates and its usage method. Background Technology

[0002] Cable reels are widely used as the primary tool for carrying cables. Currently, cable reels are mainly made of iron or wood. These reels can only be used once and cannot be recycled, resulting in resource waste. There is also a type of cable reel with a plastic structure, where the reel itself is made entirely of plastic. Plastic cable reels are more widely used, but regardless of whether they are made of iron, wood, or plastic, their main components include upper and lower side plates, a cylindrical body, and carrying holes. The cover plate of the cable reel generally needs to be welded to the end face of the reel using an ultrasonic welding machine. The current method involves manually laying the reel flat with the side plate to be welded facing upwards, transporting it to the ultrasonic welding machine via conveyor belt, and then welding the cover plate to that side plate. This manual operation is inefficient and labor-intensive.

[0003] Chinese invention patent publication number CN115256984A discloses a fully automatic ultrasonic welding device for wire reel covers and its usage method. The cover loading mechanism can automatically sort and sequentially feed the cover plates. The device integrates an injection molding machine, a wire reel gripping robot, a wire reel cooling conveyor belt, a wire reel positioning mechanism, a three-dimensional moving mechanism, a cover loading mechanism, a cover plate bearing platform wire reel, a cover plate gripping robot, and an ultrasonic welding machine to achieve fully automated welding of the wire reel and cover plate, resulting in high welding efficiency. However, this device can only perform cover plate welding operations on one side of the wire reel, and cannot simultaneously perform cover plate welding operations on both sides of the wire reel or a designated side. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that existing wire reel welding cover plates cannot weld any side of the wire reel as needed. To address this, an automatic assembly device for wire reel cover plates and its usage method are provided.

[0005] The technical solution of the present invention is: an automatic assembly device for wire reel cover plates, comprising: an injection molding machine for molding wire reels; a wire reel gripping robot for gripping wire reels discharged from the injection molding machine outlet; a wire reel cooling conveyor belt for receiving and transporting wire reels released by the wire reel gripping robot; a negative pressure box is provided at the end of the wire reel cooling conveyor belt away from the injection molding machine, and a feed inlet is provided at the end of the negative pressure box near the injection molding machine; openings for cover plates to enter are respectively provided on both sides of the negative pressure box; two cover plate conveying devices are provided on both sides of the wire reel cooling conveyor belt, and the two cover plate conveying devices are used to move the cover plates vertically to the openings where they are sucked into the negative pressure box; a cover plate storage box is provided between the two cover plate conveying devices, and the cover plate storage box is used to store cover plates and distribute cover plates to the two cover plate conveying devices; ultrasonic welding machines are provided on both sides of the negative pressure box facing the openings, and the ultrasonic welding machines are driven by a drive mechanism to move closer to or further away from the openings.

[0006] The improvement to the above solution is that the negative pressure box is connected to baffles on both sides of the opening, which are located on the side closer to the injection molding machine.

[0007] A further improvement to the above scheme is that the bottom of the negative pressure box is provided with a coil receiving cavity.

[0008] The cover plate conveying device described in the above scheme includes a power mechanism and a conveying track adjacent to and parallel to the coil cooling conveyor belt. The power mechanism is located at the end of the conveying track away from the injection molding machine. A transition plate for guiding the cover plate into the conveying track is hinged to the side of the conveying track near the cover plate storage box. A side baffle is fixed to the side of the conveying track away from the cover plate storage box. The power component of the power mechanism pushes the cover plate forward along the side baffle in the conveying track towards the opening direction until the cover plate reaches the opening position.

[0009] A further improvement to the above solution is that an end baffle is fixedly connected to one end of the conveyor track near the injection molding machine.

[0010] The transition plate described in the above scheme is adjacent to the negative pressure box.

[0011] The above-described solution includes a rectangular box body, which is divided into left and right chambers by a central partition. Two base plates that cooperate with the left and right chambers are hinged to the bottom of the central partition. The base plates are inclined and their highest points are hinged to the central partition. The lowest points of the base plates extend beyond the cover storage box and are adjacent to a transition plate. A compression spring is fixed between the two base plates.

[0012] The method of using the automatic assembly device for wire reel cover plates includes the following steps: (1) The wire reel is formed by injection molding machine, and the wire reel gripping robot grips the formed wire reel and places it horizontally on the wire reel cooling conveyor belt; (2) The wire reel enters the negative pressure box through the feed port, the feed port is closed, and the negative pressure box is depressurized; (3) The cover plate enters one or two cover plate conveying devices from the cover plate storage box, and the cover plate conveying device transports the cover plate vertically to the opening where it is sucked in by the negative pressure box. The corresponding ultrasonic welding machine is started to weld the cover plate and the wire reel into shape.

[0013] The beneficial effects of this invention are that the production of wire reels is fully automated. The wire reels are placed horizontally and enter the negative pressure box. The cover plates enter the negative pressure box from both sides as needed, corresponding to the positions of the wire reels. The ultrasonic welding machine is started to weld the wire reels and the cover plates. When it is necessary to weld the cover plates to both sides of the wire reel at the same time, the assembly efficiency of the cover plates and the wire reels is improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the automatic assembly device for the coil cover plate of the present invention;

[0015] Figure 2 yes Figure 1 Schematic diagram of a medium-pressure negative pressure box;

[0016] Figure 3 yes Figure 1 Schematic diagram of the cover plate conveying device;

[0017] Figure 4 yes Figure 1 Schematic diagram of the storage box with middle cover plate;

[0018] Figure 5 yes Figure 3 Schematic diagram of the power mechanism;

[0019] In the diagram, 1. Injection molding machine, 2. Wire reel gripping robot, 3. Wire reel cooling conveyor belt, 4. Negative pressure box, 41. Opening, 42. Baffle, 43. Wire reel receiving cavity, 44. Feed inlet, 5. Cover plate conveying device, 51. Power mechanism, 52. Conveying track, 53. Transition plate, 54. Side baffle, 55. End baffle, 6. Cover plate storage box, 61. Rectangular box, 62. Middle partition, 63. Bottom plate, 64. Compression spring. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments implemented by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] like Figure 1-5 As shown, the automatic assembly device for wire reel cover plates includes: an injection molding machine 1 for molding wire reels; a wire reel gripping robot 2 for gripping wire reels discharged from the injection molding machine outlet; a wire reel cooling conveyor belt 3 for receiving and transporting wire reels released by the wire reel gripping robot; a negative pressure box 4 is provided at the end of the wire reel cooling conveyor belt away from the injection molding machine, and an inlet 44 is provided at the end of the negative pressure box near the injection molding machine; and inlets 44 are provided on both sides of the negative pressure box for the cover plate to enter. The opening 41 is adapted to the size of the cover plate. Two cover plate conveying devices 5 are provided on both sides of the coil cooling conveyor belt. The two cover plate conveying devices are used to move the cover plate vertically to the opening and be sucked in by the negative pressure box. A cover plate storage box 6 is provided between the two cover plate conveying devices. The cover plate storage box is used to store the cover plate and distribute the cover plate to the two cover plate conveying devices. Ultrasonic welding machines are provided on both sides of the negative pressure box, facing the opening. The ultrasonic welding machines are driven by a drive mechanism and can move closer to or further away from the opening.

[0022] Specifically, when the wire reel gripping robot removes the molded wire reel from the injection molding machine, it can change its posture to place the reel horizontally on the wire reel cooling conveyor belt. This is achievable with existing technology, and its principle will not be elaborated here. The negative pressure chamber is a box-like structure. The feed inlet is automatically opened or closed by a program. For example, a sensor detects the wire reel approaching and opens the feed inlet. After the wire reel enters the negative pressure chamber, the feed inlet closes. A negative pressure device is used to draw negative pressure from the outside of the negative pressure chamber. When the wire reel enters the negative pressure chamber, it is drawn into the negative pressure chamber. Then, an ultrasonic welding machine is started to weld the cover plate and the wire reel. The bottom of the negative pressure chamber can have an openable door. After welding is completed, the door opens, and the wire reel leaves the negative pressure chamber through the door, and then the welding of the next wire reel cover plate is carried out.

[0023] The cover plate conveying device includes a power mechanism 51 and a conveying track 52 adjacent to and parallel to the coil cooling conveyor belt. The power mechanism is located at the end of the conveying track away from the injection molding machine. A transition plate 53 for guiding the cover plate into the conveying track is hinged to the side of the conveying track near the cover plate storage box. A side baffle 54 is fixed to the side of the conveying track away from the cover plate storage box. The power component of the power mechanism pushes the cover plate forward along the side baffle in the conveying track towards the opening until the cover plate reaches the opening position. The power mechanism can be an electric actuator or a piston mechanism. The rod head of the electric actuator or the piston rod head of the piston mechanism pushes the cover plate forward. The shape of the rod head or piston rod head can be arc-shaped, so that the contact area with the side of the cover plate is larger. The width of the conveying track is approximately equal to the thickness of the cover plate. The transition plate is driven by the drive mechanism to flip, and the flipping angle can be controlled. When the transition plate is completely flipped to be perpendicular to the conveying track, the cover plate is also in a vertical position. The distance between the transition plate and the side baffle is the width of the conveying track. The length of the transition plate is determined by its ability to guide the cover plate forward to the side of the negative pressure box, that is, the end of the transition plate is adjacent to the negative pressure box, and one cover plate falls off the conveyor track.

[0024] The cover storage box includes a rectangular box body 61, which is divided into left and right chambers by a central partition 62. Several cover plates are horizontally stacked in the left and right chambers respectively. Two base plates 63, which cooperate with the left and right chambers, are hinged to the bottom of the central partition. The lower base plate is tilted, with its highest point hinged to the central partition, and its lowest point extending beyond the cover storage box and adjacent to a transition plate. A compression spring 64 is fixed between the two base plates. When there are many cover plates in the rectangular box, the base plates are pressed outwards, opening them to allow one cover plate to enter the transition plate and then into the conveyor track. When the number of cover plates in the rectangular box decreases, the pressure of the compression spring exceeds the pressure on the base plates, thus closing the base plates.

[0025] As a preferred embodiment of the present invention, the negative pressure box is connected to baffles 42 on both sides of the opening near the injection molding machine. When the cover moves to the baffle, it is stopped to prevent the cover from being misaligned with the opening and thus not being sucked into the opening.

[0026] As a preferred embodiment of the present invention, an end baffle 55 is fixedly connected to one end of the conveying track near the injection molding machine, and the end baffle prevents the cover plate from falling off from the end of the conveying track.

[0027] As a preferred embodiment of the present invention, the bottom of the negative pressure box is provided with a coil receiving cavity 43, in which the welded coils are stored and centrally processed.

[0028] The method of using the automatic assembly device for wire reel cover plates includes the following steps: (1) The wire reel is formed by injection molding machine, and the wire reel gripping robot grips the formed wire reel and places it horizontally on the wire reel cooling conveyor belt; (2) The wire reel enters the negative pressure box through the feed port, the feed port is closed, and the negative pressure box is depressurized; (3) The cover plate enters one or two cover plate conveying devices from the cover plate storage box, and the cover plate conveying device transports the cover plate vertically to the opening where it is sucked in by the negative pressure box. The corresponding ultrasonic welding machine is started to weld the cover plate and the wire reel into shape.

Claims

1. An automatic wire reel cover plate assembly apparatus, comprising: Injection molding machine (1), the injection molding machine is used to form wire spools; wire spool gripping robot (2), the wire spool gripping robot is used to grip the wire spools discharged from the outlet of the injection molding machine; wire spool cooling conveyor belt (3), the wire spool cooling conveyor belt is used to receive and transport the wire spools released by the wire spool gripping robot; characterized in that: a negative pressure box (4) is provided at the end of the wire spool cooling conveyor belt away from the injection molding machine, a feed port (44) is opened at the end of the negative pressure box near the injection molding machine, openings (41) for the cover plates to enter are respectively opened on both sides of the negative pressure box, two cover plate conveying devices (5) are provided on both sides of the wire spool cooling conveyor belt, the two cover plate conveying devices are used to move the cover plates vertically to the openings to be sucked in by the negative pressure box, a cover plate storage box (6) is provided between the two cover plate conveying devices, the cover plate storage box is used to store the cover plates and distribute the cover plates to the two cover plate conveying devices, and an ultrasonic welding machine is provided on both sides of the negative pressure box facing the opening, the ultrasonic welding machine is driven by a drive mechanism and can move closer to or further away from the opening.

2. The automatic assembly device for the reel cover plate as described in claim 1, characterized in that: The negative pressure box is connected to baffles (42) on both sides of the opening, which are located on the side closer to the injection molding machine.

3. The automatic assembly device for the reel cover plate as described in claim 1, characterized in that: The bottom of the negative pressure box is provided with a coil receiving cavity (43).

4. The automatic assembly device for the reel cover plate as described in claim 1, characterized in that: The cover plate conveying device includes a power mechanism (51) and a conveying track (52) adjacent to and parallel to the coil cooling conveyor belt. The power mechanism is located at the end of the conveying track away from the injection molding machine. A transition plate (53) for guiding the cover plate into the conveying track is hinged to the side of the conveying track near the cover plate storage box. A side baffle (54) is fixed to the side of the conveying track away from the cover plate storage box. The power component of the power mechanism pushes the cover plate forward along the side baffle in the conveying track towards the opening direction until the cover plate reaches the opening position.

5. The automatic assembly device for the reel cover plate as described in claim 4, characterized in that: An end baffle (55) is fixed to one end of the conveying track near the injection molding machine.

6. The automatic assembly device for the reel cover plate as described in claim 4, characterized in that: The transition plate is adjacent to the negative pressure box.

7. The automatic assembly device for the reel cover plate as described in claim 4, characterized in that: The cover storage box includes a rectangular box (61), which is divided into left and right chambers by a middle partition (62). The bottom of the middle partition is hinged to two base plates (63) that cooperate with the left and right chambers. The base plates are inclined and their highest point is hinged to the middle partition. The lowest point of the base plates extends beyond the cover storage box and is adjacent to a transition plate. A compression spring (64) is fixed between the two base plates.

8. The method of using the automatic assembly device for the reel cover as described in any one of claims 1-7, characterized in that: Includes the following steps: (1) The wire spool is formed by injection molding machine. The wire spool grabbing robot grabs the formed wire spool and places it horizontally on the wire spool cooling conveyor belt; (2) The wire spool enters the negative pressure box through the feed port. The feed port is closed and the negative pressure box is depressurized; (3) The cover plate enters one or two cover plate conveying devices from the cover plate storage box. The cover plate conveying device transports the cover plate vertically to the opening and is sucked into the negative pressure box. The corresponding ultrasonic welding machine is started to weld the cover plate and the wire spool into shape.

Images