Automatic feeding device

Abstract

The utility model discloses an automatic feeding device which comprises a main body frame, a feeding device and a discharging device are arranged on the main body frame, and a drying device communicated with the feeding device is further arranged on the main body frame. The feeding device and the discharging device each comprise a lifting assembly, and a material tray transferring device used for horizontally conveying materials is arranged between the feeding device and the discharging device. The feeding device comprises feeding areas which are arranged in pairs, and a first bin door assembly and a second bin door assembly are arranged at the opening ends of the feeding areas correspondingly. A four-axis mechanical arm is arranged at the tail end of the material disc transferring device, and a first middle rotating disc and a second middle rotating disc are arranged below the four-axis mechanical arm. The feeding device and the discharging device are arranged in the main body frame side by side, so that materials are efficiently conveyed; meanwhile, the product is preheated in advance through the drying device, and the product transfer efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coil transfer equipment, and particularly relates to an automatic feeding device. Background Art

[0002] Coil assemblies are commonly used accessories for solenoid valves. They are typically injection-molded from coil bobbins. Because coil bobbins require time to be injection-molded, automatic loading of the coil bobbins within a material frame is necessary to prevent them from sitting idle. Patent publication number CN111332670A discloses a magnetic resistance coil storage device and an automatic magnetic resistance coil feeding device. The device comprises a coil tray with multiple coil slots into which magnetic resistance coils are movably inserted, and a storage rack. A plurality of tray fixing plates are slidably inserted into the storage rack, and the tray fixing plates are arranged at equal intervals along the height of the storage rack to accommodate the coil trays. Existing automatic feeding devices only move the material frame horizontally and vertically. The storage rack and tray lifting mechanism are separately provided, resulting in a large overall footprint and low material handling efficiency. Furthermore, the storage rack lacks a distinct loading and unloading area, resulting in a relatively simple function and poor versatility. Therefore, it is necessary to design an automatic feeding device to overcome these difficulties. Summary of the Invention

[0003] In response to the problems existing in the prior art, the utility model designs an automatic feeding device. The utility model arranges a loading device and a unloading device side by side in the main frame, thereby efficiently completing the transportation of materials; at the same time, the product is preheated in advance through the drying device, further accelerating the product transfer efficiency.

[0004] The inventive object of the utility model is achieved through the following technical solutions: an automatic feeding device, comprising a main frame, a loading device and a unloading device are provided on the main frame, and a drying device connected to the loading device is also provided on the main frame; the loading device and the unloading device both include lifting components, and a tray transfer device for horizontally transporting materials is provided between the loading device and the unloading device; the loading device includes loading areas arranged in pairs, and the open ends of the loading areas are respectively provided with a first bin door assembly and a second bin door assembly; a four-axis manipulator is provided at the end of the tray transfer device, and a first turntable and a second turntable are provided below the four-axis manipulator.

[0005] Preferably, the drying device includes a fan and a heating tank, the fan and the heating tank are connected, and the heating tank and each of the loading areas are connected to each other; each of the loading areas is provided with a lifting component, the unloading device includes a unloading area, and the unloading area is also provided with a lifting component; the tray transfer device is arranged directly above the loading area and the unloading area, and the four-axis manipulator is arranged close to the unloading area.

[0006] The outer layer of the coil bobbin is injection molded, resulting in the finished coil for the solenoid valve. The coil bobbin injection molding process is often time-consuming; preheating the coil bobbin in a drying device expedites the injection molding process. Two adjacent loading areas reduce coil bobbin waiting time and allow for simultaneous preheating of multiple rows of coil bobbins. A lifting assembly facilitates the transfer of the material frame containing the coil bobbins. Similarly, a lifting assembly in the unloading area facilitates the unloading and transfer of the finished injection molded parts.

[0007] Preferably, a lifting assembly is provided in both the loading area and the unloading area, and the lifting assembly includes a mounting base, on which a first rail is arranged in pairs; the first rail is provided with a first slider slidably connected thereto, and both ends of the first slider are provided with a pair of support arms; the mounting base is provided with a first screw rod and a drive motor, the first screw rod is rotatably connected to the mounting base through a bearing, and the drive motor is fixedly mounted on the back of the mounting base; the first screw rod and the drive motor rotate through gears, and when the drive motor drives the first screw rod to rotate, the first slider moves up and down along the first track; a first positioning cylinder is provided on the support arm, and a first positioning plate is provided on the first positioning cylinder; a second positioning cylinder is provided on the first slider, and a second positioning plate is provided on the second positioning cylinder.

[0008] When the driving motor is working, it drives the first screw rod to rotate, and when the first screw rod rotates, the first slider moves up and down along the first track; a support arm is provided on the first slider, and a material frame is placed on the support arm. The material frame can be conveniently controlled to move up and down through the lifting assembly; the first positioning plate and the second positioning plate cooperate with each other to limit the material frame to prevent the material frame from sliding during the lifting process.

[0009] Preferably, the mounting base in the loading area is hollow and provided with a mesh plate; the mesh plate is positioned toward the drying device. Because the products within the material frame need to be dried within the loading area, the mounting base in the loading area is hollow and the mesh plate is mounted on the mounting base, thereby facilitating the exchange of hot gases within the loading area.

[0010] Preferably, the opening end of the loading area is respectively provided with a first warehouse door assembly and a second warehouse door assembly; the first warehouse door assembly includes a first door panel, a first door shaft and a first cylinder, and the first door panel and the first door shaft rotate synchronously; the first door shaft is rotatably connected to the loading area through a bearing, and a first cylinder is provided between the first door shaft and the loading area; the end of the first door shaft is provided with a connecting block that rotates synchronously with it, and the connecting block is hinged to the piston shaft of the first cylinder, and the cylinder body of the first cylinder is hinged to the outer wall of the loading area; when the first cylinder is working, it drives the first door panel to rotate relative to the loading area.

[0011] The first and second door assemblies facilitate opening and closing the loading area. When heating and drying products in the loading area, the opening of the loading area must be closed simultaneously. The first and second door panels on the left side of the product are hidden in the accompanying drawings and are not included in the drawings. When the first cylinder is in operation, it drives the connecting block to rotate, and the connecting block and the first door shaft rotate synchronously, facilitating the opening and closing of the first door panel.

[0012] Preferably, the second bin door assembly includes a second door panel, a second door shaft and a second motor; the second door panel and the second door shaft rotate synchronously, and the second door shaft is rotatably connected to the loading area through a bearing; the second motor and the second door shaft are driven by gears, and the second motor drives the second door panel to rotate relative to the loading area when working; a laser sensor is provided at a position near the first door shaft in the loading area, and the laser sensor is electrically connected to the drying device.

[0013] When the second motor is operating, it drives the second door shaft through the gear, which in turn drives the second door panel to rotate synchronously, thus facilitating the opening and closing of the second door panel. When the material frame is placed on the lifting assembly of the loading area, the laser sensor detects the entry of the material frame; the first and second door panels close, and the drying device starts to operate synchronously, so that the coil rack on the material frame can be preheated.

[0014] Preferably, the tray transfer device includes a linear screw module, which is provided with a second slider that can move axially relative to it; the second slider is provided with a second track arranged in a pair, and the second track is provided with a lifting slide slidingly connected to it; the top of the second slider is provided with a lifting cylinder fixedly connected to it, and the piston shaft of the lifting cylinder is connected to the lifting slide; the lifting slide is provided with a horizontally arranged third track, and the third track is provided with a material clamping arm for clamping the material frame; the lifting slide is provided with a second screw connected to it for rotation, and the second screw is inserted into the material clamping arm and meshed with it; the end of the second screw is provided with a third motor that rotates synchronously with it, and a coupling is provided between the third motor and the second screw.

[0015] Preferably, the lifting slide is provided with a third motor and a fourth motor fixedly connected thereto, and a transmission belt connecting the fourth motor and the coupling is provided between the two; the third motor controls the second screw rod to rotate in one direction, and the fourth motor controls the second screw rod to rotate in another direction; the material clamping arms are arranged in pairs, and a strip protrusion is provided on the side of each material clamping arm, and the contour of the strip protrusion and the contour of the material frame are adapted to each other.

[0016] The linear screw module is an integrated axial linear conveying device commonly used in the public. When the linear screw module is working, it can control the second slider to move linearly relative to its axial direction. When the lifting cylinder is working, it controls the lifting slide to move up and down. The lifting slide is provided with a material clamping arm. When the material clamping arms move closer to each other, it is convenient to clamp the material frame in the loading area; when the material clamping arms move away from each other, it is convenient to place the material frame in the unloading area. When the second screw rotates, the material clamping arm can move along the third track; the third motor controls the second screw to rotate in one direction, and the fourth motor controls the second screw to rotate in the other direction. Then the third motor and the fourth motor cooperate with each other, which can facilitate the control of the material clamping arms to move closer to or away from each other. Therefore, the tray transfer device is provided to facilitate the tray transfer device to grab the material frame in the loading area, and then transport the material frame in the direction of the four-axis manipulator; at the same time, after the tray transfer device is working, it is convenient to place the empty material frame on the unloading device.

[0017] Preferably, the first center turntable is arranged close to the four-axis manipulator, and the first center turntable and the second center turntable are arranged side by side and adjacent to each other.

[0018] After the coil bobbin is preheated, it is picked up by the tray transfer device and transported to the location of the four-axis robot. The four-axis robot then grabs the coil bobbin and places it on the first turntable to await injection molding. After the coil bobbin is injection molded, it is inspected and finally transferred back to the second turntable. The four-axis robot then works, grabbing the finished injection molded product from the second turntable and placing it in the unloading area. After the coil bobbin is grabbed by the four-axis robot from the material frame, the material frame becomes idle. The tray transfer device then places the empty material frame on the lifting assembly of the unloading device, and the material frame in the unloading device can then be filled with the processed injection molded product.

[0019] Compared with the existing technology, the present invention has the following advantages: 1. The loading and unloading devices are arranged side by side and adjacent to each other, allowing for simultaneous loading and unloading processes, saving space and accelerating material transfer. 2. The material frame is transported between the loading and unloading devices via a tray transfer device, and then the four-axis robot can remove the coil bobbin from the material frame. Furthermore, the four-axis robot can also place the finished injection molded product directly into the material frame of the unloading device. 3. The coil bobbin is preheated in advance by a drying device, shortening the coil bobbin waiting time and improving the efficiency of coil bobbin injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 A three-dimensional diagram from another perspective of the present invention;

[0022] Figure 3It is a three-dimensional diagram of the feeding device;

[0023] Figure 4 This is the internal structure diagram of the feeding device;

[0024] Figure 5 It is a three-dimensional diagram of the tray transfer device;

[0025] Figure 6 for Figure 5 A partial enlarged view of position A in the middle;

[0026] Figure 7 is a perspective view of the lifting assembly;

[0027] Markings in the figure: 1. Main frame; 2. Loading device; 21. Loading area; 22. Mesh plate; 3. Unloading device; 31. Unloading area; 4. Drying device; 41. Fan; 42. Heating tank; 5. Lifting assembly; 51. Mounting base; 52. First track; 53. First slider; 54. Support arm; 55. First screw; 56. Drive motor; 57. First positioning cylinder; 58. First positioning plate; 59. Second positioning cylinder; 510. Second positioning plate; 6. Tray transfer device; 61. Linear screw module; 62. Second slider; 63. Second Track; 64, lifting slide; 65, lifting cylinder; 66, third track; 67, material clamping arm; 68, second screw rod; 69, third motor; 610, coupling; 611, fourth motor; 612, transmission belt; 613, strip protrusion; 7, first warehouse door assembly; 71, first door panel; 72, first door shaft; 73, first cylinder; 74, connecting block; 8, second warehouse door assembly; 81, second door panel; 82, second door shaft; 83, second motor; 9, four-axis robot; 10, first turntable; 11, second turntable; 12, laser sensor. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0029] like Figures 1 to 7 As shown, this embodiment discloses an automatic feeding device, including a main frame 1, on which a loading device 2 and a unloading device 3 are provided, and the main frame 1 is also provided with a drying device 4 connected to the loading device 2; the loading device 2 and the unloading device 3 both include a lifting assembly 5, and a tray transfer device 6 for horizontally transporting materials is provided between the loading device 2 and the unloading device 3; the loading device 2 includes a loading area 21 arranged in pairs, and the open ends of the loading area 21 are respectively provided with a first bin door assembly 7 and a second bin door assembly 8; the end of the tray transfer device 6 is provided with a four-axis manipulator 9, and a first turntable 10 and a second turntable 11 are provided below the four-axis manipulator 9.

[0030] The drying device 4 includes a fan 41 and a heating tank 42, and the fan 41 is connected to the heating tank 42, and the heating tank 42 is connected to each of the loading areas 21; each of the loading areas 21 is provided with a lifting component 5, and the unloading device 3 includes a unloading area 31, and the unloading area 31 is also provided with a lifting component 5; the tray transfer device 6 is arranged directly above the loading area 21 and the unloading area 31, and the four-axis robot 9 is arranged close to the unloading area 31. Both the loading area 21 and the unloading area 31 are provided with a lifting assembly 5, and the lifting assembly 5 includes a mounting base 51, on which a pair of first rails 52 are provided; the first rail 52 is provided with a first slider 53 slidably connected thereto, and both ends of the first slider 53 are provided with a pair of support arms 54; the mounting base 51 is provided with a first screw rod 55 and a drive motor 56, the first screw rod 55 is rotatably connected to the mounting base 51 through a bearing, and the drive motor 56 is fixedly mounted on the back of the mounting base 51; the first screw rod 55 and the drive motor 56 rotate through gears, and when the drive motor 56 drives the first screw rod 55 to rotate, the first slider 53 moves up and down along the first rail 52; a first positioning cylinder 57 is provided on the support arm 54, and a first positioning plate 58 is provided on the first positioning cylinder 57; the first slider 53 is provided with a second positioning cylinder 59, and a second positioning plate 510 is provided on the second positioning cylinder 59. The installation base plate 51 in the loading area 21 is hollow, and a mesh plate 22 is provided on the installation base plate 51 in the loading area 21 ; the mesh plate 22 is arranged toward the drying device 4 .

[0031] The opening ends of the loading area 21 are respectively provided with a first warehouse door assembly 7 and a second warehouse door assembly 8; the first warehouse door assembly 7 includes a first door panel 71, a first door shaft 72 and a first cylinder 73, and the first door panel 71 and the first door shaft 72 rotate synchronously; the first door shaft 72 is rotatably connected to the loading area 21 through a bearing, and a first cylinder 73 is provided between the first door shaft 72 and the loading area 21; the end of the first door shaft 72 is provided with a connecting block 74 that rotates synchronously with it, and the connecting block 74 is hinged to the piston shaft of the first cylinder 73, and the cylinder body of the first cylinder 73 is hinged to the outer wall of the loading area 21; when the first cylinder 73 is working, it drives the first door panel 71 to rotate relative to the loading area 21. The second bin door assembly 8 includes a second door panel 81, a second door shaft 82 and a second motor 83; the second door panel 81 and the second door shaft 82 rotate synchronously, and the second door shaft 82 is rotatably connected to the loading area 21 through a bearing; the second motor 83 and the second door shaft 82 are driven by gears, and when the second motor 83 is working, it drives the second door panel 81 to rotate relative to the loading area 21; a laser sensor 12 is provided at a position near the first door shaft 72 of the loading area 21, and the laser sensor 12 is electrically connected to the drying device 4.

[0032] The tray transfer device 6 includes a linear screw module 61, which is provided with a second slider 62 that can move axially relative to it; the second slider 62 is provided with a second rail 63 arranged in a pair, and the second rail 63 is provided with a lifting slide 64 slidably connected to it; the top of the second slider 62 is provided with a lifting cylinder 65 fixedly connected to it, and the piston shaft of the lifting cylinder 65 is connected to the lifting slide 64; the lifting slide 64 is provided with a horizontally arranged third rail 66, and the third rail 66 is provided with a material clamping arm 67 for clamping the material frame; the lifting slide 64 is provided with a second screw 68 rotatably connected to it, and the second screw 68 is inserted into the material clamping arm 67 and meshed with it; the end of the second screw 68 is provided with a third motor 69 that rotates synchronously with it, and a coupling 610 is provided between the third motor 69 and the second screw 68. The lifting slide 64 is equipped with a third motor 69 and a fourth motor 611 fixedly connected thereto. A transmission belt 612 connects the fourth motor 611 and the coupling 610. The third motor 69 controls the rotation of the second screw 68 in one direction, while the fourth motor 611 controls the rotation of the second screw 68 in the other direction. The material gripping arms 67 are arranged in pairs, each with a strip-shaped protrusion 613 on the side. The profile of the strip-shaped protrusion 613 matches the profile of the material frame. The first center turntable 10 is positioned adjacent to the four-axis robot 9, and the first and second center turntables 10, 11 are arranged side by side and adjacent to each other.

[0033] The specific operation process of this embodiment is as follows: The outer layer of the coil bobbin is injection molded, resulting in the finished coil for the solenoid valve. The injection molding process of the coil bobbin often takes a considerable amount of time. Here, the drying device 4 preheats the coil bobbin in advance, thereby accelerating the injection molding process. Two adjacent loading areas 21 reduce waiting time for the coil bobbins and enable preheating of multiple rows of coil bobbins. The provision of a lifting assembly 5 facilitates the transport of material frames containing coil bobbins. Similarly, the provision of a lifting assembly 5 in the unloading area 31 facilitates the unloading and transport of finished injection molded products. The provision of a first door assembly 7 and a second door assembly 8 facilitates the opening and closing of the loading area 21. When heating and drying products within the loading area 21, the opening of the loading area 21 must be closed simultaneously. When the material frame is placed on the lifting assembly 5 of the loading area 21, the laser sensor 12 detects the entry of the material frame. At this point, the first and second door panels 71, 81 close, and the drying device 4 begins operating simultaneously, allowing the coil bobbins on the material frame to be preheated. When the coil frame is preheated, the material frame containing the product will be picked up by the tray transfer device 6 and transported to the location of the four-axis robot 9; the four-axis robot 9 then grabs the coil frame and places it on the first turntable 10 to wait for injection molding; after the coil frame is injection molded, it is inspected and finally transferred back to the second turntable 11; the four-axis robot 9 then works to grab the injection molded product from the second turntable 11 and place it in the unloading area 31. After the coil frame is grabbed by the four-axis robot 9 from the material frame, the material frame will be in an idle state; the tray transfer device 6 then places the empty material frame on the lifting assembly 5 of the unloading device 3, and the material frame in the unloading device 3 can then be placed with the processed injection molded product.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An automatic feeding device, comprising a main frame (1), characterized in that: The main frame (1) is provided with a loading device (2) and a unloading device (3), and the main frame (1) is also provided with a drying device (4) connected to the loading device (2); the loading device (2) and the unloading device (3) both include a lifting assembly (5), and a tray transfer device (6) for horizontally transporting materials is provided between the loading device (2) and the unloading device (3); the loading device (2) includes a loading area (21) arranged in pairs, and the opening ends of the loading area (21) are respectively provided with a first bin door assembly (7) and a second bin door assembly (8); the end of the tray transfer device (6) is provided with a four-axis manipulator (9), and a first middle turntable (10) and a second middle turntable (11) are provided below the four-axis manipulator (9).

2. The automatic feeding device according to claim 1, characterized in that: The drying device (4) includes a fan (41) and a heating tank (42), the fan (41) and the heating tank (42) are connected, and the heating tank (42) and each of the loading areas (21) are connected to each other; each of the loading areas (21) is provided with a lifting component (5), and the unloading device (3) includes a unloading area (31), and the unloading area (31) is also provided with a lifting component (5); the tray transfer device (6) is arranged directly above the loading area (21) and the unloading area (31), and the four-axis manipulator (9) is arranged close to the unloading area (31).

3. The automatic feeding device according to claim 2, characterized in that: A lifting assembly (5) is provided in both the loading area (21) and the unloading area (31), wherein the lifting assembly (5) comprises a mounting base (51), wherein the mounting base (51) is provided with a first rail (52) arranged in pairs; a first slider (53) slidably connected to the first rail (52), and a pair of support arms (54) are provided at both ends of the first slider (53); a first screw rod (55) and a driving motor (56) are provided on the mounting base (51), wherein the first screw rod (55) is rotatably connected to the mounting base (51) through a bearing, and the driving motor (56) is provided. The driving motor (56) is fixedly mounted on the back of the mounting base (51); the first screw rod (55) and the driving motor (56) rotate through gears, and when the driving motor (56) drives the first screw rod (55) to rotate, the first slider (53) moves up and down along the first track (52); the support arm (54) is provided with a first positioning cylinder (57), and the first positioning cylinder (57) is provided with a first positioning plate (58); the first slider (53) is provided with a second positioning cylinder (59), and the second positioning cylinder (59) is provided with a second positioning plate (510).

4. The automatic feeding device according to claim 3, characterized in that: The mounting base (51) in the loading area (21) is hollow, and a mesh plate (22) is provided on the mounting base (51) in the loading area (21); the mesh plate (22) is arranged toward the drying device (4).

5. The automatic feeding device according to claim 2, characterized in that: The opening end of the loading area (21) is respectively provided with a first warehouse door assembly (7) and a second warehouse door assembly (8); the first warehouse door assembly (7) includes a first door panel (71), a first door shaft (72) and a first cylinder (73), and the first door panel (71) and the first door shaft (72) rotate synchronously; the first door shaft (72) is rotatably connected to the loading area (21) through a bearing, and a first cylinder (73) is provided between the first door shaft (72) and the loading area (21); the end of the first door shaft (72) is provided with a connecting block (74) that rotates synchronously with the first door shaft, the connecting block (74) is hinged to the piston shaft of the first cylinder (73), and the cylinder body of the first cylinder (73) is hinged to the outer wall of the loading area (21); when the first cylinder (73) is working, it drives the first door panel (71) to rotate relative to the loading area (21).

6. The automatic feeding device according to claim 5, characterized in that: The second door assembly (8) includes a second door panel (81), a second door shaft (82) and a second motor (83); the second door panel (81) and the second door shaft (82) rotate synchronously, and the second door shaft (82) is rotatably connected to the loading area (21) through a bearing; the second motor (83) and the second door shaft (82) are driven by gears, and when the second motor (83) is working, it drives the second door panel (81) to rotate relative to the loading area (21); a laser sensor (12) is provided at a position near the first door shaft (72) of the loading area (21), and the laser sensor (12) is electrically connected to the drying device (4).

7. The automatic feeding device according to claim 1, characterized in that: The tray transfer device (6) comprises a linear screw module (61), on which a second slider (62) capable of axially moving relative thereto is provided; the second slider (62) is provided with a second track (63) arranged in pairs, and the second track (63) is provided with a lifting slide (64) slidably connected thereto; a lifting cylinder (65) fixedly connected thereto is provided at the top of the second slider (62), and the piston shaft of the lifting cylinder (65) is connected to the lifting slide (64); a third track (66) arranged horizontally is provided on the lifting slide (64), and a material clamping arm (67) for clamping a material frame is provided on the third track (66); the lifting slide (64) is provided with a second screw (68) rotatably connected thereto, and the second screw (68) is inserted into the material clamping arm (67) and meshed with the second screw; a third motor (69) rotating synchronously with the second screw (68) is provided at the end thereof, and a coupling (610) is provided between the third motor (69) and the second screw (68).

8. The automatic feeding device according to claim 7, characterized in that: The lifting slide (64) is provided with a third motor (69) and a fourth motor (611) fixedly connected thereto, and a transmission belt (612) is provided between the fourth motor (611) and the coupling (610) to connect the two. The third motor (69) controls the second screw rod (68) to rotate in one direction, and the fourth motor (611) controls the second screw rod (68) to rotate in the other direction. The material clamping arms (67) are arranged in pairs, and a strip-shaped protrusion (613) is provided on the side of each material clamping arm (67), and the contour of the strip-shaped protrusion (613) and the contour of the material frame are adapted to each other.

9. The automatic feeding device according to claim 1, characterized in that: The first center turntable (10) is arranged close to the four-axis manipulator (9), and the first center turntable (10) and the second center turntable (11) are arranged side by side and adjacent to each other.

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