Foaming device for refrigerator production

Abstract

The invention discloses a refrigerator production-based foaming device which comprises a base, a control seat is arranged on one side of the base, four groups of box doors are arranged at the top end of the base close to the edge, a fixed box door is fixedly connected to one side close to the control seat, and the other three groups of box doors are turnover box doors. The base is fixedly connected with three groups of hinge seats matched with the turnover box door, the hinge seats are fixedly connected with turnover shafts rotationally connected with the turnover box door, and a placement table is arranged in the center of the top surface of the base; according to the foaming device based on refrigerator production, through cooperation of the lifting assembly and the cover sealing assembly, the problem that in the original foaming process, opening and closing of a cabinet body of the foaming device need to be completed through manual operation, and the foaming device is not convenient to operate is solved. The manual input operation time is relatively long, and the working efficiency is relatively low.

Description

Technical Field

[0001] This invention relates to the field of refrigerator manufacturing technology, specifically to a foaming device used in refrigerator manufacturing. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a consumer product that keeps food or other items at a constant low temperature. As an indispensable household appliance in modern families, the functions of refrigerators have been continuously enriched and improved with the development of technology to meet users' needs for food preservation, storage, and other aspects.

[0003] In refrigerator manufacturing, the inner liner and outer shell are produced sequentially. After initial assembly, they are placed on a platform in a foaming device. The door of the foaming device is then closed, and the nozzle is inserted into the foaming holes to inject foaming material between the inner liner and outer shell. The material expands and solidifies internally, filling the entire mold space to form a hard foam layer. Once solidified, the door of the foaming device is opened, and the refrigerator shell is removed for further finishing. However, the opening and closing of the foaming device requires manual operation, resulting in long operation times and low efficiency. Therefore, we propose a foaming device for refrigerator production. Summary of the Invention

[0004] The purpose of this invention is to provide a foaming device for refrigerator production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a foaming device for refrigerator production, comprising a base, a control seat on one side of the base, and four sets of doors near the edge of the top of the base. A fixed door is fixedly connected to the side near the control seat, and the other three sets of doors are flip-up doors. Three sets of hinge seats adapted to the flip-up doors are fixedly connected to the base, and each hinge seat is fixedly connected to a flipping shaft rotatably connected to the flip-up doors. A placement platform is provided at the center of the top surface of the base. A lifting assembly is also provided, disposed on the base and adapted to the flip-up doors, including a lifting frame disposed on the outside of the base and abutting thereto. When multiple sets of flip-up doors are... When closed, the lifting frame is in contact with the outer sides of the multiple sets of flip-top doors. When the lifting assembly moves upward, it lifts the three sets of flip-top doors to the closed state. The sealing assembly is located directly above the placement platform and connected to the control base. It includes a top cover located above the placement platform. An electric telescopic rod connected to the control base is fixedly connected to the top of the top cover. The sealing assembly is used to seal the top of the flip-top doors after they are closed, which facilitates the sealing process of the refrigerator during the foaming process. This solves the problem that in the original foaming process, the opening and closing of the cabinet of the foaming device required manual operation, which resulted in long manual operation time and low work efficiency.

[0006] Preferably, the lifting assembly further includes multiple sets of fixing blocks respectively disposed below the multiple sets of flip-top doors, the multiple sets of fixing blocks being fixedly connected to the base, each fixing block being provided with a flip rod having one end rotatably connected to it, the other end of the flip rod being rotatably connected to a push wheel, the flip-top doors being provided with multiple sets of push grooves adapted to the push wheels, the inner side of the lifting frame being provided with moving grooves respectively adapted to the multiple sets of flip rods, and a power mechanism connected to the base being disposed below the lifting frame.

[0007] Preferably, the power mechanism includes threaded sleeves disposed on both sides below the lifting frame and fixedly connected thereto. The threaded sleeves are threadedly connected to threaded rods. The threaded rods are rotatably connected to a support block fixedly connected to the base. A pulley set is driven between the bottom ends of the two sets of threaded rods. A bending frame is fixedly connected to the control seat near the bottom end. A motor is mounted on the bending frame. A coupling is provided at the output end of the motor, and a power shaft is fixedly connected to the motor through the coupling. A first gear is fixedly connected to the power shaft. An extension shaft is fixedly connected to the bottom end of one set of threaded rods near the bending frame. A second gear that meshes with the first gear is fixedly connected to the extension shaft.

[0008] Preferably, the sealing assembly includes an electrical control box disposed on the control base and located above the bending frame. A control switch is provided at the bottom of the electrical control box, and the control switch is electrically connected to the electric telescopic rod. A control plate is disposed directly above the bending frame and fixedly connected to the threaded sleeve. The top of the control plate is adapted to the control switch. A pressing element is provided on the top cover for pressing the refrigerator shell during the foaming process.

[0009] Preferably, the pressing component includes multiple sets of sliding shafts disposed on and slidably connected to the top cover, a pressing plate is fixedly connected to the bottom end of the multiple sets of sliding shafts, multiple sets of second springs are fixedly connected between the pressing plate and the top cover, and a blocking block is fixedly connected to the top end of the sliding shaft.

[0010] Preferably, the base has multiple storage slots located below multiple flip-top doors. The cross-section of each storage slot is narrower at the top and wider at the bottom. A first spring is fixedly connected to one end of each storage slot, and the other end of the first spring is fixedly connected to the corresponding flip-top rod.

[0011] Preferably, the cross-section of the moving groove is wider at the top and narrower at the bottom, which is beneficial for the flipping rod to slowly flip in the moving groove when the lifting frame slowly descends, avoiding the situation of sudden rapid flipping after disconnection.

[0012] Preferably, the top surface of the lifting frame is provided with multiple sets of stabilizing blocks, the stabilizing blocks are slidably connected to multiple sets of buffer shafts, buffer blocks are fixedly connected above the buffer shafts, and multiple sets of third springs sleeved on the buffer shafts are provided between the buffer blocks and the stabilizing blocks. This is beneficial for buffering when the flip-top door is opened, preventing damage caused by large impact forces.

[0013] Preferably, a rubber pad layer can be laid on the top of the control board to reduce the impact force, which helps to protect the control switch.

[0014] Preferably, the top edge of the pressing plate is set as an inclined surface, which facilitates the pressing plate to smoothly enter the inside of the top cover when the top cover is lowered and closed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention solves the problem of low efficiency and long operation time caused by the manual operation of opening and closing the cabinet of the foaming device during the foaming process, which requires a lifting component and a sealing component. After the inner liner and outer shell are initially assembled, they are placed on the placement platform of the foaming device. The lifting component is then operated to lift the flip-up door upwards and close it. After the door is closed, the lifting component triggers the sealing component to operate. The control base moves the top cover downwards via an electric telescopic rod to seal the entire structure. The pressing component inside the top cover presses down on the rear side of the refrigerator shell to prevent deformation of the rear shell during the foaming process. The foaming material expands and solidifies inside, filling the entire space of the mold and forming a hard foam layer. After the foaming material solidifies, the door of the foaming device is opened, the refrigerator shell is removed, and subsequent finishing is performed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure below the base of the present invention. Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the structure below the fixed box door of the present invention. Figure 5 for Figure 4 Enlarged view of region B in the middle; Figure 6 for Figure 4 Enlarged view of region C; Figure 7 This is a schematic diagram of the flip-top box door in the open state of the present invention; Figure 8 for Figure 7 Enlarged view of region D in the middle; Figure 9 This is a schematic diagram of the lifting frame structure of the present invention; Figure 10 This is a schematic diagram of the pressing component structure of the present invention.

[0017] Drawing number descriptions: 1. Base; 2. Control base; 3. Fixed door; 4. Flip-up door; 5. Hinge base; 6. Flip-up shaft; 7. Placement platform; 8. Lifting assembly; 9. Lifting frame; 10. Cover assembly; 11. Top cover; 12. Electric telescopic rod; 13. Fixing block; 14. Flip-up rod; 15. Push wheel; 16. Push groove; 17. Moving groove; 18. Power mechanism; 19. Threaded sleeve; 20. Threaded rod; 21. Support block; 22. Pulley 23. Bending frame; 24. Motor; 25. Coupling; 26. Power shaft; 27. First gear; 28. Extension shaft; 29. ​​Second gear; 30. Electrical control box; 31. Control switch; 32. Control board; 33. Pressing element; 34. Sliding shaft; 35. Pressing plate; 36. Second spring; 37. Storage slot; 38. First spring; 39. Stabilizing block; 40. Buffer shaft; 41. Buffer block; 42. Third spring; 43. Blocking block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0020] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0021] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0022] Please see Figure 1-10This invention provides a technical solution: a foaming device for refrigerator production, comprising a base 1, a control seat 2 on one side of the base 1, and four sets of doors near the edge of the top of the base 1. A fixed door 3 is fixedly connected to the side near the control seat 2, and the other three sets of doors are flip-up doors 4. Three sets of hinge seats 5 adapted to the flip-up doors 4 are fixedly connected to the base 1, and each hinge seat 5 is fixedly connected to a flipping shaft 6 rotatably connected to the flip-up doors 4. A placement platform 7 is provided at the center of the top surface of the base 1; and a lifting assembly 8, which is disposed on the base 1 and adapted to the flip-up doors 4, including a... The lifting frame 9, placed on the outside of the base 1 and in contact with it, is in contact with the outside of the multiple sets of flip doors 4 when they are all closed. The lifting component 8 is used to lift the three sets of flip doors 4 to the closed state when it moves upward. The sealing component 10 is located directly above the placement platform 7 and connected to the control base 2. It includes a top cover 11 located above the placement platform 7. The top of the top cover 11 is fixedly connected to an electric telescopic rod 12 connected to the control base 2. The sealing component 10 is used to seal the top of the door after the flip doors 4 are closed, which facilitates the foaming process of the refrigerator.

[0023] like Figures 2-9As shown, the lifting assembly 8 also includes multiple sets of fixing blocks 13 respectively disposed below multiple sets of flip-top doors 4. The multiple sets of fixing blocks 13 are fixedly connected to the base 1. A flip-top rod 14 is provided on the fixing block 13, one end of which is rotatably connected to it. The other end of the flip-top rod 14 is rotatably connected to a push wheel 15. Multiple sets of push grooves 16 adapted to the push wheel 15 are provided on the flip-top door 4. The inner side of the lifting frame 9 is provided with moving grooves 17 adapted to the multiple sets of flip-top rods 14. A power mechanism 18 connected to the base 1 is provided below the lifting frame 9. The power mechanism 18 includes threaded sleeves 19 located on both sides below the lifting frame 9 and fixedly connected thereto. Each threaded sleeve 19 is threadedly connected to a threaded rod 20. The threaded rod 20 is rotatably connected to a support block 21 fixedly connected to the base 1. A pulley set 22 is drive-connected between the bottom ends of the two sets of threaded rods 20. A bending frame 23 is fixedly connected to the control base 2 near its bottom end. A motor 24 is mounted on the bending frame 23. A coupling 25 is provided at the output end of the motor 24, and a power shaft 26 is fixedly connected to it via the coupling 25. The power shaft 26 is fixedly... A first gear 27 is fixedly connected to the base 1. An extension shaft 28 is fixedly connected to the bottom end of a set of threaded rods 20 near the bending frame 23. The extension shaft 28 is fixedly connected to a second gear 29 that meshes with the first gear 27. Multiple storage slots 37 are provided on the base 1, each located below a set of flip-up doors 4. The cross-section of each storage slot 37 is narrower at the top and wider at the bottom. A first spring 38 is fixedly connected to one end of each storage slot 37, and the other end of the first spring 38 is fixedly connected to a corresponding flip-up rod 14. Additionally, for the lifting frame 9... During slow descent, the flipping rod 14 will slowly flip in the moving groove 17 to avoid sudden rapid flipping after disconnection. The moving groove 17 has a cross-section that is wider at the top and narrower at the bottom. In order to buffer when the flipping box door 4 is opened and prevent damage caused by large impact force, multiple sets of stabilizing blocks 39 are provided on the top surface of the lifting frame 9. Multiple sets of buffer shafts 40 are slidably connected to the stabilizing blocks 39. Buffer blocks 41 are fixedly connected above the buffer shafts 40. Multiple sets of third springs 42 are provided between the buffer blocks 41 and the stabilizing blocks 39 and are sleeved on the buffer shafts 40. Example

[0024] like Figures 1-4 as well as Figure 10As shown, the cover assembly 10 includes an electrical control box 30 mounted on the control base 2 and located above the bending frame 23. A control switch 31 is mounted at the bottom of the electrical control box 30. The control switch 31 is electrically connected to the electric telescopic rod 12. A control plate 32 is mounted directly above the bending frame 23 and is fixedly connected to the threaded sleeve 19. The top of the control plate 32 is adapted to the control switch 31. A pressing component 33 is mounted on the top cover 11 for pressing the refrigerator shell during the foaming process. The pressing component 33 includes multiple sets of sliding shafts 34 mounted on the top cover 11 and slidably connected thereto. A pressing plate 35 is fixedly connected to the bottom of the multiple sets of sliding shafts 34. Multiple sets of second springs 36 are fixedly connected between the pressing plate 35 and the top cover 11. A blocking block 43 is fixedly connected to the top of the sliding shaft 34. A rubber pad layer for reducing the impact force can be laid on the top of the control plate 32. In addition, the top edge of the pressing plate 35 is set as an inclined surface.

[0025] In a specific implementation, during the foaming process, the inner liner and outer shell are initially assembled and placed on the placement platform 7 of the foaming device. The motor 24 on the bending frame 23 is then operated. The motor 24 drives the power shaft 26 to rotate via the coupling 25. The power shaft 26 then drives the first gear 27 below to rotate. Through the meshing connection between the first gear 27 and the second gear 29, the second gear 29 drives the extension shaft 28 to rotate on the bending frame 23. The extension shaft 28 then drives the fixedly connected threaded rod 20 to rotate on the support block 21. Through the transmission connection of the pulley group 22, the two sets of threaded rods 20 rotate synchronously. The threaded connection of sleeve 19 allows two sets of threaded sleeves 19 to rise synchronously and cooperate to lift the upper lifting frame 9. The lifting frame 9 then moves upward against the base 1 until it contacts the flipping rod 14. The flipping rod 14 is gradually pushed in the moving groove 17 and flips upward. The push wheel 15 at the top of the flipping rod 14 enters the push groove 16 on the flipping box door 4. The lifting frame 9 continues to rise, and the flipping rod 14 pushes the flipping box door 4 during the continued flipping process. With the flipping shaft 6 on the hinge seat 5 as the center, the three sets of flipping box doors 4 flip upward synchronously until the state of the flipping box door 4 and the side of the base 1 changes from vertical to parallel. At this time, the lifting seat is sleeved on the outside of the flipping box door 4. As the threaded sleeve 19 moves upward, the control plate 32, which is fixedly connected to the threaded sleeve 19, rises synchronously. When the three sets of flip doors 4 close synchronously, the top of the control plate 32 contacts the control switch 31 and presses it. Since the control switch 31 is electrically connected to the electric telescopic rod 12, the electric telescopic rod 12 is controlled to operate and extend its output end downward, which drives the top cover 11, which is fixedly connected below, to move downward until it contacts the top of the door, thereby making the interior a closed state that facilitates the foaming process. In order to prevent the foam material from expanding and solidifying inside, since the back of the refrigerator shell is not restrained, the back shell will deform during the foaming process. When the top cover 11 is sealed, the pressing plate 35 on its inner side contacts the back of the refrigerator shell and presses it against it. The sliding shaft 34 slides slightly upward on the top cover 11 at this time, and the second spring 36 is squeezed and contracted to form a strong resistance force until the foam material fills the entire space of the mold and forms a hard foam layer. After the foamed material solidifies, the top cover 11 is opened upwards, and the lifting frame 9 moves downwards until it reaches the outside of the base 1. Then, the first spring 38 in the side storage groove 37 of the base 1 rebounds, pushing the flipping rod 14 and causing the push wheel 15 to move out of the push groove 16. The flipping door 4 then gradually opens. When flipping downwards, the flipping door 4 contacts the buffer block 41, which in turn causes the buffer shaft 40 to slide downwards on the stabilizing block 39, compressing the third spring 42 and reducing the impact force when opening the flipping door 4. Afterwards, the foamed refrigerator shell is removed from the placement platform 7 for further finishing, ultimately forming a shape roughly as shown below. Figure 7 This state facilitates the next foaming process.

[0026] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A foaming device for refrigerator manufacturing, characterized in that, include: The base (1) has a control seat (2) on one side and four sets of boxes are provided at the top edge of the base (1). A fixed box door (3) is fixedly connected to the side near the control seat (2), and the other three sets of boxes are flip-up boxes (4). Three sets of hinge seats (5) that are adapted to the flip-up boxes (4) are fixedly connected to the base (1). A flip-up shaft (6) that is rotatably connected to the hinge seat (5) is fixedly connected to the flip-up boxes (4). A placement platform (7) is provided in the center of the top surface of the base (1). Lifting component (8), which is disposed on the base (1) and adapted to the flip-top door (4), includes a lifting frame (9) disposed on the outside of the base (1) and attached to it. When multiple sets of flip-top doors (4) are closed, the lifting frame (9) is attached to the outside of multiple sets of flip-top doors (4). When the lifting component (8) is used to move upward, it lifts three sets of flip-top doors (4) to the closed state. The sealing assembly (10) is located directly above the placement platform (7) and connected to the control seat (2). It includes a top cover (11) located above the placement platform (7). The top of the top cover (11) is fixedly connected to an electric telescopic rod (12) connected to the control seat (2). The sealing assembly (10) is used to seal the top of the door after the flip door (4) is closed, so as to facilitate the sealing foaming process of the refrigerator.

2. The foaming device for refrigerator production according to claim 1, characterized in that, The lifting assembly (8) also includes multiple sets of fixing blocks (13) respectively disposed below multiple sets of flip-top doors (4). The multiple sets of fixing blocks (13) are fixedly connected to the base (1). A flip-top rod (14) is provided on the fixing block (13) and rotatably connected to one end thereto. A push wheel (15) is rotatably connected to the other end of the flip-top rod (14). Multiple push grooves (16) adapted to the push wheel (15) are provided on the flip-top door (4). A moving groove (17) adapted to the multiple sets of flip-top rods (14) is provided on the inner side of the lifting frame (9). A power mechanism (18) connected to the base (1) is provided below the lifting frame (9).

3. The foaming device for refrigerator production according to claim 2, characterized in that, The power mechanism (18) includes threaded sleeves (19) located on both sides below the lifting frame (9) and fixedly connected thereto. The threaded sleeves (19) are threadedly connected to threaded rods (20). The threaded rods (20) are rotatably connected to a support block (21) fixedly connected to the base (1). A pulley group (22) is connected between the bottom ends of the two sets of threaded rods (20). A bending frame (23) is fixedly connected near the bottom end of the control seat (2). A motor (24) is installed on the bending frame (23). A coupling (25) is provided at the output end of the motor (24), and a power shaft (26) is fixedly connected through the coupling (25). A first gear (27) is fixedly connected to the power shaft (26). An extension shaft (28) is fixedly connected to the bottom end of a set of threaded rods (20) near the bending frame (23). A second gear (29) meshing with the first gear (27) is fixedly connected to the extension shaft (28).

4. The foaming device for refrigerator production according to claim 3, characterized in that, The sealing assembly (10) includes an electrical control box (30) disposed on the control base (2) and located above the bending frame (23). A control switch (31) is provided at the bottom of the electrical control box (30). The control switch (31) is electrically connected to the electric telescopic rod (12). A control plate (32) is provided directly above the bending frame (23) and is fixedly connected to the threaded sleeve (19). The top of the control plate (32) is adapted to the control switch (31). A pressing part (33) is provided on the top cover (11) for pressing the refrigerator shell during the foaming process.

5. A foaming device for refrigerator production according to claim 4, characterized in that, The pressing component (33) includes multiple sets of sliding shafts (34) disposed on the top cover (11) and slidably connected thereto. The bottom ends of the multiple sets of sliding shafts (34) are fixedly connected to pressing plates (35). Multiple sets of second springs (36) are fixedly connected between the pressing plates (35) and the top cover (11). The top end of the sliding shafts (34) is fixedly connected to a blocking block (43).

6. A foaming device for refrigerator production according to claim 2, characterized in that, The base (1) has multiple storage slots (37) located below multiple flip-top doors (4). The cross-section of the storage slot (37) is narrow at the top and wide at the bottom. A first spring (38) is fixedly connected to one end of the storage slot (37). The other end of the first spring (38) is fixedly connected to the corresponding flip-top rod (14).

7. A foaming device for refrigerator production according to claim 2, characterized in that, The cross-section of the moving groove (17) is wider at the top and narrower at the bottom.

8. A foaming device for refrigerator production according to claim 2, characterized in that, The top surface of the lifting frame (9) is provided with multiple sets of stabilizing blocks (39), the stabilizing blocks (39) are slidably connected to multiple sets of buffer shafts (40), a buffer block (41) is fixedly connected above the buffer shaft (40), and multiple sets of third springs (42) sleeved on the buffer shaft (40) are provided between the buffer block (41) and the stabilizing block (39).

9. A foaming device for refrigerator production according to claim 4, characterized in that, The top of the control panel (32) may be covered with a rubber pad layer to reduce the impact force.

10. A foaming device for refrigerator production according to claim 5, characterized in that, The top edge of the pressing plate (35) is set as an inclined surface.

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