Annular refrigerator door foaming line filling manipulator

Abstract

The utility model relates to an annular refrigerator door foaming line filling manipulator which comprises a first rectangular rod, a first sliding plate, a second rectangular rod, a second sliding plate and a vertical rod which are transversely and oppositely arranged, and filling gun heads are vertically and symmetrically suspended on the two sides of the bottom of the vertical rod respectively. A fixed groove frame is transversely and fixedly placed on the outer side of one first rectangular rod, a movable groove frame is longitudinally arranged over the fixed groove frame in a suspended mode, and the inner end face of the movable groove frame is fixedly connected with the end face of the corresponding second rectangular rod in a suspended mode. A drag chain I in which a plurality of hoses are arranged is laid in the groove fixing frame; a second drag chain internally provided with a plurality of hoses is longitudinally erected between the top face of the movable groove frame and the top face of the second sliding plate. By introducing the fixed groove frame, the movable groove frame, the first drag chain and the second drag chain, orderly management and dynamic following of the feeding hose are achieved. The movable groove frame transversely moves along with the second rectangular rod, and it is ensured that the hose is not wound in the moving process of the vertical rod. Due to the design of the drag chain, the hose is prevented from being abraded, and the automation degree and the working efficiency of the filling manipulator are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerator door foaming and filling technology, and specifically relates to a ring-shaped refrigerator door foaming line filling robot. Background Technology

[0002] In the foaming line of a ring-shaped refrigerator door, the performance of the filling robot directly affects the efficiency and quality of the foaming operation. In existing technology, two filling nozzles are vertically mounted at the bottom of a movable vertical rod. Although this achieves basic filling functionality, the layout of the feeding hose becomes a bottleneck restricting work efficiency. The hose is randomly piled up around the vertical rod, which not only affects the cleanliness of the working environment but also frequently causes tangling when the vertical rod moves, forcing operation interruptions for manual untangling, greatly reducing the automation level and work efficiency of the filling robot. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a robotic arm for filling the foaming line of a ring-shaped refrigerator door. The specific technical solution is as follows:

[0004] This utility model provides a ring-shaped refrigerator door foaming line filling robot, including two rectangular rods arranged horizontally opposite each other. The inner sides of the two rectangular rods are respectively horizontally slidably engaged with vertically symmetrically arranged sliding plates. A rectangular rod is longitudinally connected between the tops of the two sliding plates. The inner side of the rectangular rod is longitudinally slidably engaged with vertically arranged sliding plates. A vertical rod is vertically installed downward on one side of the inner surface of the sliding plate. Filling gun heads are vertically symmetrically suspended on both sides of the bottom of the vertical rod.

[0005] One of the rectangular rods has a fixed slotting frame horizontally fixed on its outer side. A movable slotting frame is vertically suspended above the fixed slotting frame, with its inner end face fixedly suspended to the two end faces of the corresponding rectangular rod. Rollers are symmetrically installed at the two corners of its outer bottom surface. Multiple feed valves are arranged horizontally inside the fixed slotting frame. Multiple relay pipes are laid on the inner side of the top surface of the movable slotting frame. A cable chain with multiple flexible hoses is laid inside the fixed slotting frame. The feed inlets of the multiple relay pipes and the feed outlets of the multiple feed valves are connected by the cable chain. Multiple hoses are connected in a corresponding manner; a drag chain II with multiple hoses is longitudinally mounted between the top surface of the moving groove frame and the top surface of the slide plate II; multiple discharge valves are arranged on the top surface of the slide plate II; the discharge ports of multiple relay pipes and the inlets of multiple discharge valves are respectively connected in a corresponding manner through multiple hoses in the drag chain II; at least two limiting clamps with multiple hoses inserted are vertically spaced on the inner surface of the vertical rod; the discharge ports of multiple discharge valves are respectively connected in a corresponding manner through multiple hoses in the limiting clamps to the inlets of two filling gun heads.

[0006] As a preferred technical solution of this utility model, the upper and lower parts of the outer surface of the slide plate are slidably connected to the top surface and the lower part of the inner side of the corresponding rectangular rod through a horizontally arranged slide rail slider assembly; the upper part of the inner side of the two rectangular rods is symmetrically fixed with racks; a servo motor is vertically fixed and suspended in the middle of the outer side of the rectangular rod, and the power output end of the servo motor is driven by a longitudinally arranged rotating shaft. The ends of the rotating shaft are symmetrically sleeved with gears, and the two gears are respectively meshed with the corresponding racks.

[0007] As a preferred technical solution of this utility model, the upper and lower parts of the outer facade of the second sliding plate are respectively slidably connected to the top surface and the lower part of the inner side of the corresponding rectangular rod through a longitudinally arranged slide rail slider assembly; a servo motor is vertically arranged on the other side of the inner facade of the second sliding plate, and a gear is driven to the power output end of the servo motor, which meshes with a rack that is longitudinally fixed to the upper part of the inner side of the rectangular rod.

[0008] As a preferred technical solution of this utility model, the lower part of the inner end face of the moving slot frame and the outer side of the corresponding rectangular rod are slidably connected by a horizontally arranged slide rail slider assembly.

[0009] As a preferred technical solution of this utility model, a suspension mechanism for adjusting the distance between the two filling gun heads is longitudinally mounted on the bottom of the outer facade of the vertical rod;

[0010] The suspension mechanism includes a rectangular mounting frame suspended from the bottom of the outer side of the vertical rod. Bosses are symmetrically fixed to the inner ends of the frame, and guide rods are arranged parallel to each other between the two bosses. Slides are symmetrically slidably connected to the two guide rods along the vertical rod. The filling gun head is vertically fixed to the inner surfaces of the two slides. A lead screw is rotatably connected between the middle of the two bosses. The lead screw has opposite threaded sections symmetrically arranged along the axial direction of the vertical rod. The two slides are respectively driven by the threaded sections of the corresponding lead screw. A rotating wheel is axially connected to one end of the lead screw.

[0011] As a preferred embodiment of this utility model, a receiving mechanism for collecting residual material is provided below the filling gun head; the receiving mechanism includes a mounting plate horizontally suspended at the rear side of the bottom of the corresponding filling gun head, a pair of lugs are vertically and symmetrically arranged along the side edge of the mounting plate, and a connecting rod is hinged to the inner wall of each lug. The bottoms of the two longitudinally opposite connecting rods are connected by a pivot adapted to them, and a receiving plate is mounted on the top of the two pivots; a cylinder is horizontally suspended at the rear end of the mounting plate, and a connecting rod is hinged to the piston rod end of the cylinder, and the front end of the connecting rod is connected to the two connecting rods on the front side by a pivot adapted to them;

[0012] The cylinder has two states: an extended state and a retracted state. When it is in the extended state, the connecting rod is kept vertical and the front end of the receiving plate is horizontally positioned directly below the outlet of the corresponding filling gun head. When it is in the retracted state, the connecting rod tilts backward and rotates upward, and the front end of the receiving plate is horizontally offset backward from directly below the outlet of the corresponding filling gun head.

[0013] As a preferred embodiment of this utility model, rubber stops are respectively arranged laterally opposite to each other on the inner side ends of the first rectangular rod; rubber stops are respectively arranged longitudinally opposite to each other on the inner side ends of the second rectangular rod.

[0014] The beneficial effects of this utility model are:

[0015] This invention's filling robot, through the introduction of a fixed slot frame, a movable slot frame, and two drag chains, achieves orderly management and dynamic following of the feeding hose. The fixed slot frame is fixedly installed, providing a stable feeding source; the movable slot frame moves laterally with the second rectangular rod, ensuring that the hose does not become tangled during the movement of the vertical rod. The drag chain design not only protects the hose from wear but also ensures the hose's flexibility during complex movements, greatly improving the automation level and operational efficiency of the filling robot.

[0016] The filling gun head is vertically suspended on slide plate two via a vertical rod, and slide plate two can slide longitudinally on rectangular rod two. Rectangular rod two slides laterally on rectangular rod one via slide plate one, forming a flexible movement system in three-dimensional space. This design allows the filling gun head to accurately reach any position within the foaming mold frame, improving the accuracy and efficiency of filling.

[0017] The design of components such as the relay pipe, discharge valve, and limit clamp makes the entire feeding system modular, facilitating installation, commissioning, and maintenance. In particular, the design of the limit clamp not only secures the hose but also ensures a stable connection between the hose and the filling nozzle, reducing the possibility of leakage and malfunction. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0019] Figure 2 It shows Figure 1 Enlarged view of the structure at part A in the middle;

[0020] Figure 3 It shows Figure 1 Enlarged view of the structure of part B in the middle;

[0021] Figure 4 The main structural view of this utility model is shown;

[0022] Figure 5 It shows Figure 4Enlarged view of the structure of part C in the middle;

[0023] Figure 6 It shows Figure 4 Enlarged view of the structure of part D in the middle;

[0024] Figure 7 A side view of the structure of this utility model is shown;

[0025] Figure 8 It shows Figure 7 Enlarged view of the structure at part E in the middle.

[0026] The diagram shows: 1. Rectangular rod one; 11. Slide plate one; 12. Slide rail slider assembly one; 13. Rack one; 14. Gear one; 15. Servo motor one; 16. Rotating shaft; 2. Rectangular rod two; 21. Slide plate two; 22. Slide rail slider assembly two; 23. Rack two; 24. Gear two; 25. Servo motor two; 3. Vertical rod; 31. Limiting clamp; 4. Filling gun head; 5. Suspension adjustment mechanism; 51. Mounting frame; 52. Convex... 53. Platform; 54. Guide rod; 55. Slide table; 56. Lead screw; 6. Rotary wheel; 6. Receiving mechanism; 61. Mounting plate; 611. Ear block; 62. Connecting rod one; 63. Receiving plate; 64. Cylinder; 65. Connecting rod two; 7. Fixed slot frame; 71. Feed valve; 72. Cable drag chain one; 8. Moving slot frame; 81. Relay pipe; 82. Cable drag chain two; 83. Discharge valve; 84. Roller; 85. Slide rail slider assembly three; 9. Rubber stop. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0028] Example 1

[0029] To address the technical problems in the background section, the following robotic arm for filling the foaming line of a ring-shaped refrigerator door is provided:

[0030] Combination Figure 1 , Figure 4 and Figure 7 As shown, the ring-shaped refrigerator door foaming line filling robot includes two rectangular rods 1 arranged horizontally opposite each other. The inner sides of the two rectangular rods 1 are respectively horizontally slidably engaged with vertically symmetrically arranged sliding plates 11. A rectangular rod 2 is longitudinally supported between the tops of the two sliding plates 11. The inner side of the rectangular rod 2 is longitudinally slidably engaged with a vertically arranged sliding plate 21. A vertical rod 3 is vertically installed downward on one side of the inner surface of the sliding plate 21. Filling gun heads 4 are vertically symmetrically suspended on both sides of the bottom of the vertical rod 3.

[0031] One of the rectangular rods 1 has a fixed slotting frame 7 horizontally fixed on its outer side. A movable slotting frame 8 is vertically suspended above the fixed slotting frame 7, and the inner end face of the movable slotting frame 8 is fixedly suspended to the end face of the corresponding rectangular rod 2. Rollers 84 are symmetrically installed at the two corners of its outer bottom surface. Multiple feed valves 71 are arranged horizontally inside the fixed slotting frame 7. Multiple relay pipes 81 are laid on the inner side of the top surface of the movable slotting frame 8. A cable chain 72 with multiple flexible hoses is laid inside the fixed slotting frame 7. The feed inlets of the multiple relay pipes 81 and the feed outlets of the multiple feed valves 71 are respectively connected by the cable chain 72. Multiple hoses are connected in a corresponding manner; a drag chain 82 with multiple hoses built in is longitudinally mounted between the top surface of the moving groove frame 8 and the top surface of the slide plate 21; multiple discharge valves 83 are arranged on the top surface of the slide plate 21; the discharge ports of multiple relay pipes 81 and the inlets of multiple discharge valves 83 are respectively connected through multiple hoses in the drag chain 22; at least two limiting clamps 31 with multiple hoses inserted are vertically spaced on the inner surface of the vertical rod 3; the discharge ports of multiple discharge valves 83 are respectively connected to the inlets of two filling gun heads 4 through multiple hoses in the limiting clamps 31.

[0032] By adopting the above technical solution, this filling robot achieves orderly management and dynamic following of the feeding hose through the introduction of a fixed slot frame 7, a movable slot frame 8, and drag chains 72 and 82. The fixed slot frame 7 is fixedly installed to provide a stable feeding source; the movable slot frame 8 moves laterally with the rectangular rod 2, ensuring that the hose does not become tangled during the movement of the vertical rod 3. The drag chain design not only protects the hose from wear but also ensures the hose's flexibility during complex movements, greatly improving the automation level and operating efficiency of the filling robot.

[0033] The filling gun head 4 is vertically suspended on the slide plate 21 via the vertical rod 3. The slide plate 21 can slide longitudinally on the rectangular rod 2, which in turn slides laterally on the rectangular rod 1 via the slide plate 11, forming a flexible movement system in three-dimensional space. This design allows the filling gun head 4 to accurately reach any position within the foaming mold frame, improving the accuracy and efficiency of filling.

[0034] The design of components such as the relay pipe 81, the discharge valve 83, and the limit clamp 31 makes the entire feeding system modular, facilitating installation, commissioning, and maintenance. In particular, the design of the limit clamp 31 not only secures the hose but also ensures a stable connection between the hose and the filling gun head 4, reducing the possibility of leakage and malfunction.

[0035] Example 2

[0036] Combination Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0037] In this embodiment, as Figure 1 , Figure 2 as well as Figure 4 , Figure 5 As shown, the upper and lower parts of the outer surface of the slide plate 11 are slidably connected to the top surface and the lower part of the inner side of the corresponding rectangular rod 1 through a horizontally arranged slide rail slider assembly 12; the upper parts of the inner sides of the two rectangular rods 1 are respectively horizontally symmetrically fixed with racks 13; a servo motor 15 is vertically fixed and suspended in the middle of the outer side of the rectangular rod 2, and the power output end of the servo motor 15 is connected to a longitudinally arranged rotating shaft 16. The ends of the rotating shaft 16 are respectively axially symmetrically sleeved with gears 14, and the two gears 14 are respectively meshed with the corresponding racks 13.

[0038] By adopting the above technical solution, the sliding block assembly 12 ensures stable lateral sliding of the slide plate 11 on the rectangular rod 1. By fixing the rack 13 to the upper inner side of the rectangular rod 1 and engaging with the gear 14, precise lateral positioning control of the slide plate 11 is achieved. The servo motor 15 drives the rotating shaft 16 to rotate, which in turn drives the two gears 14 to rotate synchronously. Due to the meshing relationship between the gears 14 and the rack 13, this rotation is converted into linear movement of the slide plate 11. This design allows the filling robot to quickly and accurately adjust the position of the filling gun head 4 laterally.

[0039] like Figure 1 , Figure 3 and Figure 4 As shown, the upper and lower parts of the outer facade of the second sliding plate 21 are respectively slidably connected to the top surface and the lower part of the inner side of the corresponding rectangular rod 2 through a longitudinally arranged slide rail slider assembly 22; a servo motor 25 is vertically arranged on the other side of the inner facade of the second sliding plate 21, and the power output end of the servo motor 25 is connected to a gear 24, which meshes with a rack 23 that is longitudinally fixed to the upper part of the inner side of the rectangular rod 22.

[0040] By adopting the above technical solution, the sliding block assembly 22 ensures stable longitudinal sliding of the slide plate 21 on the rectangular rod 2. By fixing the rack 23 to the upper inner side of the rectangular rod 2 and engaging with the gear 24, precise longitudinal positioning control of the slide plate 21 is achieved. The servo motor 25 drives the gear 24 to rotate; due to the meshing relationship between the gear 24 and the rack 23, this rotation is converted into linear movement of the slide plate 21. This design allows the filling robot to quickly and accurately adjust the position of the filling gun head 4 in the longitudinal direction.

[0041] like Figure 5 As shown, the lower part of the inner end face of the moving slot frame 8 is slidably connected to the outer side of the corresponding rectangular rod 1 through a horizontally arranged slide rail slider assembly 3 85.

[0042] By adopting the above technical solution, the sliding rail slider assembly 85 ensures the stable support and sliding of the moving slot frame 8 on the outer side of the rectangular rod 1. This connection method not only provides the necessary mechanical support, but also allows the moving slot frame 8 to move smoothly and accurately in the horizontal direction.

[0043] like Figure 1 and Figure 4 As shown, the inner ends of the rectangular rod 1 are respectively provided with rubber stops 9 facing each other laterally; the inner ends of the rectangular rod 2 are respectively provided with rubber stops 9 facing each other longitudinally.

[0044] By adopting the above technical solution, the rubber stop 9 is installed on the inner end of the rectangular rod 1 and the rectangular rod 2. When the sliding plates 11 and 21 slide to their limit positions on their respective slide rails, the rubber stop 9 can act as a buffer device to absorb the impact force generated by the sliding plate collision, preventing the sliding plates from being damaged by direct hard collision. This buffering effect protects the integrity of the mechanical structure and extends the service life of the equipment.

[0045] Example 3

[0046] Combination Figure 1 , Figure 4 as well as Figures 6-8 As shown, based on the above embodiments, this embodiment further provides the following:

[0047] In this embodiment, as Figure 1 , Figure 4 and Figure 6 As shown, a suspension mechanism 5 for adjusting the distance between the two filling gun heads 4 is longitudinally mounted on the bottom of the outer facade of the vertical rod 3;

[0048] The suspension mechanism 5 includes a rectangular mounting frame 51, which is suspended from the bottom of the outer side of the vertical rod 3. Bosses 52 are vertically and symmetrically fixed to the inner ends of the frame 51. Guide rods 53 are arranged parallel to each other between the two bosses 52. Slides 54 are symmetrically slidably connected to the two guide rods 53 along the vertical rod 3. The filling gun head 4 is vertically and correspondingly fixed to the inner surfaces of the two slides 54. A lead screw 55 is rotatably connected between the middle of the two bosses 52. The lead screw 55 has opposite threaded sections symmetrically arranged along the axial direction of the vertical rod 3. The two slides 54 are respectively driven and screwed to the corresponding threaded sections of the lead screw 55. A rotating wheel 56 is axially connected to one end of the lead screw 55.

[0049] By adopting the above technical solution, the suspension mechanism 5 is suspended from the bottom of the outer side of the vertical rod 3 via the mounting frame 51. Utilizing the combination of the guide rod 53 and the slide table 54, the two filling nozzles 4 can slide flexibly in the left-right direction of the vertical rod 3. This design allows for quick and precise adjustment of the distance between the two filling nozzles 4 according to the specific dimensions of the refrigerator door and the foaming requirements.

[0050] The lead screw 55 is a key component of the adjustment mechanism 5. It has symmetrically arranged, oppositely arranged threaded sections along the axis of the vertical rod 3, and is driven and screwed to the two slides 54. By rotating the wheel 56 at one end of the lead screw 55, the movement distance of the two slides 54 and their filling nozzles 4 on the guide rod 53 can be controlled synchronously and precisely. This precise control ensures that the filling nozzles 4 can accurately align with the foaming area of ​​the refrigerator door, improving the accuracy and efficiency of the foaming operation.

[0051] like Figure 1 , Figure 4 as well as Figure 7 , Figure 8 As shown, a receiving mechanism 6 for collecting residual material is provided below the filling gun head 4; the receiving mechanism 6 includes a mounting plate 61 horizontally suspended at the rear side of the bottom of the corresponding filling gun head 4, a pair of lugs 611 vertically symmetrically arranged on the side edge of the mounting plate 61, and a connecting rod 62 hinged to the inner wall of each lug 611. The bottoms of the two longitudinally opposite connecting rods 62 are connected by a pivot adapted to them, and a receiving plate 63 is mounted on the top of the two pivots; a cylinder 64 is horizontally suspended at the rear end of the mounting plate 61, and a connecting rod 65 is hinged to the piston rod end of the cylinder 64, and the front end of the connecting rod 65 is connected to the two connecting rods 62 on the front side by a pivot adapted to them;

[0052] The cylinder 64 has two states: an extended state and a retracted state. When it is in the extended state, the connecting rod 62 is kept vertical, and the front end of the receiving plate 63 is horizontally positioned directly below the outlet of the corresponding filling gun head 4. When it is in the retracted state, the connecting rod 62 tilts and rotates upwards to the rear, and the front end of the receiving plate 63 is horizontally offset to the rear from directly below the outlet of the corresponding filling gun head 4.

[0053] By adopting the above technical solution, the receiving mechanism 6, through the combined design of mounting plate 61, connecting rod 62, pivot, and receiving plate 63, can effectively collect the dripping residue from the filling gun head 4 when it is not performing a filling operation. When the filling gun head 4 is not in operation or is dripping, the residue will fall directly onto the receiving plate 63, avoiding contamination of the working environment or equipment by the residue and maintaining the cleanliness of the production line.

[0054] The receiving mechanism 6 utilizes the extension and retraction states of cylinder 64, along with the linkage between connecting rod 65 and connecting rod 62, to flexibly adjust the position of the receiving plate 63. When cylinder 64 is extended, the front end of the receiving plate 63 is horizontally positioned directly below the outlet of the corresponding filling gun head 4, ensuring accurate collection of residual material. When cylinder 64 retracts, the front end of the receiving plate 63 shifts rearward, facilitating normal filling operations of the filling gun head 4 without interfering with the foaming process.

[0055] Working principle and usage process of this utility model:

[0056] In use, the filling robot's overall structure firstly achieves multi-dimensional movement through a frame composed of rectangular rod 1 and rectangular rod 2. The sliding plate 11 on rectangular rod 1 can slide laterally, while the rectangular rod 2 and its sliding plate 21 on the sliding plate 11 can move longitudinally and laterally respectively. This design allows the filling nozzle 4 to be precisely positioned in three-dimensional space.

[0057] During operation, the raw material enters through the feed valve 71 on the fixed slot frame 7, and then is transferred to the relay pipe 81 on the moving slot frame 8 through the hose in the first cable chain 72. Next, the raw material is further transferred to the discharge valve 83 on the second slide plate 21 through the hose in the second cable chain 82. The discharge valve 83 distributes the raw material to the hose inserted in the limit clamp 31, and finally delivers it to the corresponding filling gun head 4.

[0058] To precisely control the position of the filling nozzle 4, the movement of slide plate 11 and slide plate 21 is driven by servo motor 15 and servo motor 25, respectively. Servo motor 15 achieves the lateral movement of slide plate 11 through a combination of gear 14 and rack 13, while servo motor 25 achieves the longitudinal movement of slide plate 21 through a combination of gear 24 and rack 23.

[0059] In addition, the sliding connection between the moving slot frame 8 and the fixed slot frame 7 allows the relay pipe 81 to move along with the sliding plate 21, maintaining the continuity of raw material transmission.

[0060] Before filling, if it is necessary to adjust the distance between the two filling gun heads 4, the screw 55 can be driven to rotate by rotating the wheel 56, thereby causing the two slides 54 to move along the guide rod 53 to achieve the purpose of adjusting the distance.

[0061] Finally, after the filling gun head 4 has finished its work, the cylinder 64 can drive the receiving plate 63 to move directly below the discharge port of the filling gun head 4 to collect any dripping residue and avoid waste of raw materials or pollution of the environment.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ring-shaped refrigerator door foaming line filling robot, characterized in that: It includes two rectangular rods (1) arranged horizontally opposite each other, two sliding plates (11) arranged vertically symmetrically connected to the inner sides of the two rectangular rods (1), a rectangular rod (2) arranged vertically connected between the tops of the two sliding plates (11), a sliding plate (21) arranged vertically connected to the inner side of the rectangular rod (2), a vertical rod (3) installed vertically downward on one side of the inner surface of the sliding plate (21), and a filling gun head (4) suspended vertically symmetrically on both sides of the bottom of the vertical rod (3). One of the rectangular rods (1) has a fixed slot frame (7) horizontally fixed on its outer side. A movable slot frame (8) is vertically suspended above the fixed slot frame (7). The inner end face of the movable slot frame (8) is fixedly suspended to the end face of the corresponding rectangular rod (2). Rollers (84) are symmetrically installed at the two corners of its outer bottom surface. Multiple feed valves (71) are arranged horizontally inside the fixed slot frame (7). Multiple relay pipes (81) are arranged on the inner side of the top surface of the movable slot frame (8). A drag chain (72) with multiple flexible hoses is laid inside the fixed slot frame (7). The feed inlets of the multiple relay pipes (81) and the discharge outlets of the multiple feed valves (71) are respectively connected by the drag chain (72). 2) The multiple hoses in the above are connected in a corresponding manner; a drag chain 2 (82) with multiple hoses built in is longitudinally erected between the top surface of the moving groove frame (8) and the top surface of the slide plate 2 (21). Multiple discharge valves (83) are arranged on the top surface of the slide plate 2 (21). The discharge ports of multiple relay pipes (81) and the inlets of multiple discharge valves (83) are respectively connected in a corresponding manner through multiple hoses in the drag chain 2 (82); at least two limiting clamps (31) with multiple hoses inserted are vertically spaced on the inner surface of the vertical rod (3). The discharge ports of multiple discharge valves (83) are respectively connected in a corresponding manner through multiple hoses in the limiting clamps (31) and the inlets of two filling gun heads (4).

2. The ring-shaped refrigerator door foaming line filling robot according to claim 1, characterized in that: The upper and lower parts of the outer facade of the slide plate (11) are respectively slidably connected to the top and lower inner sides of the corresponding rectangular rod (1) through a horizontally arranged slide rail slider assembly (12); the upper inner sides of the two rectangular rods (1) are respectively horizontally symmetrically fixed with racks (13); the middle of the outer side of the rectangular rod (2) is vertically fixed with a servo motor (15), the power output end of the servo motor (15) is connected to a longitudinally arranged rotating shaft (16), and the ends of the rotating shaft (16) are respectively axially symmetrically sleeved with gears (14), and the two gears (14) are respectively meshed with the corresponding racks (13).

3. The ring-shaped refrigerator door foaming line filling robot according to claim 2, characterized in that: The upper and lower parts of the outer facade of the slide plate 2 (21) are respectively slidably connected to the top surface and the lower part of the inner side of the corresponding rectangular rod 2 (2) through the longitudinally arranged slide rail slider assembly 2 (22); a servo motor 2 (25) is vertically arranged on the other side of the inner facade of the slide plate 2 (21), and the power output end of the servo motor 2 (25) is connected to the gear 2 (24), and the gear 2 (24) meshes with the rack 2 (23) which is longitudinally fixed to the upper part of the inner side of the rectangular rod 2 (2).

4. The ring-shaped refrigerator door foaming line filling robot according to claim 2, characterized in that: The lower part of the inner end face of the moving slot frame (8) is slidably connected to the outer side of the corresponding rectangular rod (1) by a horizontally arranged slide rail slider assembly (85).

5. The ring-shaped refrigerator door foaming line filling robot according to claim 1, characterized in that: The vertical rod (3) is longitudinally mounted at the bottom of its outer facade with a suspension mechanism (5) for adjusting the distance between the two filling gun heads (4); The suspension mechanism (5) includes a rectangular mounting frame (51) which is suspended from the bottom of the outer side of the vertical rod (3). The inner end of the frame is vertically and symmetrically fixed with bosses (52). Guide rods (53) are arranged vertically and parallel between the two bosses (52). The two guide rods (53) slide symmetrically along the vertical rod (3) and slides (54) are connected to them. The inner surfaces of the two slides (54) are vertically and correspondingly fixed with the filling gun head (4). A lead screw (55) is rotatably connected between the middle of the two bosses (52). The lead screw (55) is symmetrically arranged with opposite threaded sections along the axial direction of the vertical rod (3). The two slides (54) are respectively driven screwed to the threaded sections of the corresponding lead screw (55). A wheel (56) is axially connected to one end of the lead screw (55).

6. The ring-shaped refrigerator door foaming line filling robot according to claim 5, characterized in that: Below the filling gun head (4) is a receiving mechanism (6) for collecting residual material; the receiving mechanism (6) includes a mounting plate (61) horizontally suspended at the rear side of the bottom of the corresponding filling gun head (4), and a pair of lugs (611) are vertically and symmetrically arranged on the side of the mounting plate (61). Each lug (611) has a connecting rod (62) hinged to its inner wall. The bottoms of the two longitudinally opposite connecting rods (62) are connected by a pivot adapted to them, and a receiving plate (63) is mounted on the top of the two pivots. A cylinder (64) is horizontally suspended at the rear end of the mounting plate (61). The piston rod end of the cylinder (64) is hinged to a connecting rod (65), and the front end of the connecting rod (65) is connected to the two connecting rods (62) on the front side by a pivot adapted to them. The cylinder (64) is divided into an extended state and a retracted state. When it is in the extended state, the connecting rod (62) is kept vertical and the front end of the receiving plate (63) is horizontally positioned directly below the discharge port of the corresponding filling gun head (4). When it is in the retracted state, the connecting rod (62) tilts backward and rotates upward, and the front end of the receiving plate (63) is horizontally offset backward from directly below the discharge port of the corresponding filling gun head (4).

7. The ring-shaped refrigerator door foaming line filling robot according to claim 3, characterized in that: The inner ends of the rectangular rod one (1) are respectively provided with rubber stops (9) facing each other laterally; the inner ends of the rectangular rod two (2) are respectively provided with rubber stops (9) facing each other longitudinally.

Images