A refrigerator shell foaming heating plate processing device

Abstract

This invention discloses a processing device for a foamed heating plate for refrigerator shells, comprising a processing box, a placement seat in the processing box, and a through slot on one side of the top of the processing box. A fan wheel is mounted on the top of the processing box, and the fan wheel's bearing is fixedly connected to a first rotating shaft rotatably connected to the top of the processing box. An air outlet of the fan wheel is provided with an air outlet pipe connected to it at one end. This processing device for a foamed heating plate for refrigerator shells relates to the field of refrigerator processing technology. It solves the problem that when raw materials are injected into the shell through a foaming pipe, the position is fixed, and the injected raw materials accumulate in the same place. The diffusion relies entirely on gravity and slow flow, resulting in slow dispersion of the molten material. This not only slows down the feeding process but also easily leads to uneven filling of the cavities on both sides.

Description

Technical Field

[0001] This invention relates to the field of refrigerator processing technology, specifically to a refrigerator shell foaming heating plate processing device. 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. The refrigerator contains a compressor, an ice maker, a cabinet or box for freezing, and a storage box with a refrigeration unit. The capacity of a household refrigerator typically ranges from 20 to 500 liters. The world's first compression-type household refrigerator was invented in the United States in 1910. In 1925, the Swedish company Lido developed a household absorption refrigerator. In 1927, General Electric in the United States developed a fully enclosed refrigerator. In 1930, air-cooled continuous diffusion absorption refrigerators using different heating methods were launched on the market. Household thermoelectric refrigerators began production in the latter half of the 1950s. China began producing refrigerators in the 1950s.

[0003] Currently, in the production of foamed heating plates for refrigerator shells, a pre-mixed foaming material is injected between the inner and outer shells, causing it to foam and form. The process involves directly filling the space between the inner and outer shells with foaming resin, heating it to melt and form a gas-liquid saturated solution. Through nucleation, numerous microbubbles are formed, which grow to create foamed plastic parts. During shell production, feeding holes are typically pre-drilled in the shell to facilitate material filling. Foaming tubes are then inserted through these holes. However, when the material is injected into the space between the shells through the foaming tubes, the position is fixed, causing the injected material to accumulate in the same spot. Diffusion relies entirely on gravity and slow flow, resulting in slow dispersion of the molten material. This not only slows down the feeding process but also easily leads to uneven filling of the cavities on both sides. Therefore, we propose a processing device for foamed heating plates for refrigerator shells. Summary of the Invention

[0004] The purpose of this invention is to provide a refrigerator shell foaming heating plate processing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a refrigerator shell foaming heating plate processing device, comprising: a processing box, wherein a placement seat is provided in the processing box, and a through slot is opened on one side of the top of the processing box; a fan is provided at the top of the processing box; the bearing of the fan is fixedly connected to a first rotating shaft rotatably connected to the top of the processing box; and an air outlet of the fan is provided with an air outlet pipe connected to one end thereto; the other end of the air outlet pipe is connected to a wind box disposed at the top of the processing box; and multiple sets of air blowing pipes are connected to both ends of the wind box. The air box is equipped with a switching mechanism, and the through slot is equipped with a foaming tube. The foaming tube is fitted with a connecting sleeve, and the connecting sleeve is fixedly connected to a connecting shaft that is rotatably connected to the through slot. The foaming tube is connected to a swing component located at the top of the processing box. This solves the problem that when the raw material is injected into the shell through the foaming tube, the position is fixed and the injected raw material will accumulate in the same place. It relies entirely on gravity and slow flow to diffuse, and the molten material spreads slowly. This not only slows down the feeding process, but also easily leads to uneven filling of the cavities on both sides.

[0006] Preferably, the swing assembly includes a linkage shaft rotatably connected to the top of the processing box, a connecting plate fixedly connected to one end of the linkage shaft, a first swing sleeve rotatably connected to the other end of the connecting plate, an arc-shaped rod fixedly connected to the top of the processing box slidably connected to the first swing sleeve, an arc-shaped tension spring sleeved on the arc-shaped rod, the two ends of the arc-shaped tension spring being fixedly connected to the processing box and the first swing sleeve respectively, a second swing sleeve sleeved on the foaming tube being rotatably connected below the first swing sleeve, and the swing assembly also includes a power mechanism disposed at the top of the processing box and connected to the impeller, which is beneficial for driving the foaming tube to swing and preventing the foaming material from accumulating in one fixed place.

[0007] Preferably, the power mechanism includes a mounting base disposed at the top of the processing box and fixedly connected to the impeller. An electric motor is fixedly connected to the other side of the mounting base. The output end of the electric motor is fixedly connected to a power shaft rotatably connected to the top of the processing box. The power shaft is driven by the first rotating shaft. A half-stroke gear is also fixedly connected to the power shaft. The half-stroke gear meshes with a first gear fixedly connected to the linkage shaft, which is beneficial to drive the foaming tube to swing while driving the impeller to operate.

[0008] Preferably, the switching mechanism includes a second rotating shaft rotatably connected to the top of the processing box, the second rotating shaft being rotatably connected to the center of the bellows, the first rotating shaft being drively connected to the second rotating shaft, a rotating disk fixedly connected to the bottom end of the second rotating shaft and disposed in the bellows, and a pushing block fixedly connected to the side of the rotating disk. The switching mechanism includes opening and closing parts disposed at both ends inside the bellows and cooperating with the pushing block, which facilitates switching the air force to blow out from both ends of the bellows, not only increasing the air force during blowing, but also providing a certain amount of time for material to flow out.

[0009] Preferably, the opening and closing component includes two sets of fixed seats respectively fixed at both ends inside the bellows. Each fixed seat is provided with multiple sets of springs with one end fixedly connected to it. The other end of each set of springs is fixedly connected to an opening and closing block. The positions of both sets of opening and closing blocks are adapted to the pushing block. The opening and closing blocks are slidably connected to the bottom end of the bellows. An arched seat adapted to the opening and closing block is provided above it. The arched seat is fixedly connected to the top end of the bellows, which is beneficial for controlling the outlet of the wind force in the bellows.

[0010] Preferably, the cross-section of the air box is an inverted isosceles trapezoid, and multiple sets of air blowers are inclined toward the two ends of the processing box on both sides of the air box. The inclined arrangement of the air blowers helps to increase the blowing distance of the foaming material.

[0011] Preferably, a first pulley set for transmission is provided between the power shaft and the first rotating shaft, which is beneficial for the power shaft to drive the first rotating shaft to rotate.

[0012] Preferably, a second pulley set for transmission is provided between the first rotating shaft and the second rotating shaft, which is beneficial for the first rotating shaft to drive the second rotating shaft to rotate.

[0013] Preferably, the multiple sets of springs are arranged in a straight line at equal intervals on the fixed base, which helps to make the sliding of the opening and closing block in the bellows more stable.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention effectively solves the problem that when raw materials are injected into the shell through the foaming tube, the position is fixed, and the injected raw materials will accumulate in the same place. Diffusion relies entirely on gravity and slow flow, resulting in slow dispersion of the molten material. This not only slows down the feeding process but also easily leads to uneven filling of the cavities on both sides. The motor operates by driving a half-stroke gear through a power shaft. When the half-stroke gear meshes with the first gear, the first gear drives the linkage shaft to rotate, further driving the connecting plate to rotate around the linkage shaft. The other end of the connecting plate then drives the first swing sleeve to move. The first swing sleeve, mounted on the arc-shaped rod, moves from one end... Slide to the other end, thereby driving the second swing sleeve to move. The second swing sleeve drives the foam tube to swing. The connecting sleeve sleeved on the foam tube rotates in the through slot through the connecting shaft. When the half-stroke gear disengages from the first gear, the arc-shaped tension spring pulls back, pulling the first swing sleeve back on the arc-shaped rod. The second swing sleeve then works to pull the foam tube in the opposite direction. During the swing of the foam tube with the connecting sleeve as the center, the foam material flows out of the foam tube. In the reciprocating swing of the foam tube, the contact area between the foam material and the refrigerator is increased, realizing the rapid diffusion of the foam material.

[0016] 2. In this invention, when the electric motor operates and drives the power shaft to rotate, it drives the first rotating shaft to rotate via transmission. The first rotating shaft drives the impeller to operate, and the air force enters the air box through the air outlet pipe. At the same time, as the first rotating shaft rotates, it drives the second rotating shaft to rotate via transmission. The second rotating shaft then drives the rotating disk to rotate in the air box, and the push block on the side of the rotating disk rotates accordingly. The push block contacts the two sets of opening and closing blocks in sequence, which not only makes the air force stronger when one side is blowing, but also, it is worth noting, that the push block is always in the opposite position to the discharge end of the foaming tube. This is beneficial for the foaming material to accumulate after it flows out. When the foaming tube moves in the opposite direction, the air force blows out from the air outlet pipe, blowing the previously accumulated foaming material, making the foaming material flow, increasing the contact area with the refrigerator, and ensuring that the foaming material fills the refrigerator evenly during foaming. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of region B in the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the top of the processing box of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of region C;

[0023] Figure 7 This is a schematic diagram of the swing component structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the internal structure of the bellows of the present invention;

[0025] Figure 9 This is a schematic diagram of the wind turbine structure of the present invention;

[0026] Figure 10 This is a schematic diagram of the opening and closing mechanism of the present invention.

[0027] In the diagram: 1-Processing box; 2-Placement seat; 3-Through slot; 4-Iron wheel; 5-First rotating shaft; 6-Air outlet pipe; 7-Air box; 8-Blowing pipe; 9-Switching mechanism; 10-Foaming pipe; 11-Connecting sleeve; 12-Connecting shaft; 13-Swing assembly; 14-Linkage shaft; 15-Connecting plate; 16-First swing sleeve; 17-Arc rod; 18-Arc tension spring; 19-Second swing sleeve; 20-Power mechanism; 21-Mounting seat; 22-Motor; 23-Power shaft; 24-Half-stroke gear; 25-First gear; 26-Second rotating shaft; 27-Rotating disk; 28-Push block; 29-Opening and closing part; 30-Fixed seat; 31-Spring; 32-Opening and closing block; 33-Arch-shaped seat; 34-First pulley group; 35-Second pulley group; 36-Connecting joint. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-10This invention provides a technical solution: a refrigerator shell foaming heating plate processing device, including a processing box 1, a placement seat 2 in the processing box 1, and a through slot 3 on one side of the top of the processing box 1. A fan 4 is disposed at the top of the processing box 1, and the bearing of the fan 4 is fixedly connected to a first rotating shaft 5 rotatably connected to the top of the processing box 1. An air outlet 6 is provided at the air outlet of the fan 4, with one end connected to it. The other end of the air outlet 6 is connected to a wind box 7 disposed at the top of the processing box 1. Multiple sets of air blowing pipes 8 are connected to both ends of the wind box 7, and a... The switching mechanism 9 includes a foaming tube 10 installed in the through slot 3, with a connecting sleeve 11 covering the foaming tube 10. A connecting shaft 12, rotatably connected to the through slot 3, is fixedly connected to the connecting sleeve 11. The foaming tube 10 is connected to a swing assembly 13 located at the top of the processing box 1. The switching mechanism 9 includes a second rotating shaft 26 rotatably connected to the top of the processing box 1. The second rotating shaft 26 is rotatably connected to the center of the air box 7. The first rotating shaft 5 is drively connected to the second rotating shaft 26. A rotating disk 27, located in the air box 7, is fixedly connected to the bottom end of the second rotating shaft 26. The side of the rotating disk 27 is fixedly connected to the rotating disk 27. The switching mechanism 9 includes a push block 28 and opening / closing components 29 located at both ends inside the bellows 7 and cooperating with the push block 28. Each opening / closing component 29 includes two sets of fixed seats 30 fixed at both ends inside the bellows 7. Multiple sets of springs 31 are fixedly connected to one end of each fixed seat 30, and opening / closing blocks 32 are fixedly connected to the other ends of the springs 31. Both sets of opening / closing blocks 32 are positioned to match the push block 28, and the opening / closing blocks 32 are slidably connected to the bottom of the bellows 7. An arched seat 33 is provided above each opening / closing block 32, and the arched seat... 33 is fixedly connected to the top of the bellows 7. In order to make the sliding of the opening and closing block 32 in the bellows 7 more stable, multiple sets of springs 31 are arranged in a straight line at equal intervals on the fixed base 30. In order for the first rotating shaft 5 to drive the second rotating shaft 26 to rotate, a second pulley set 35 for transmission is provided between the first rotating shaft 5 and the second rotating shaft 26. In addition, the cross section of the bellows 7 is an inverted isosceles trapezoid, and multiple sets of air blowing pipes 8 are inclined towards the two ends of the processing box 1 on both sides of the bellows 7, which makes the blowing of the foaming material more effective and increases the fluidity of the foaming material.

[0030] The swing assembly 13 includes a linkage shaft 14 rotatably connected to the top of the processing box 1. A connecting plate 15 is fixedly connected to the linkage shaft 14 at one end. A first swing sleeve 16 is rotatably connected to the other end of the connecting plate 15. An arc-shaped rod 17, fixedly connected to the top of the processing box 1, is slidably connected to the first swing sleeve 16. An arc-shaped tension spring 18 is sleeved on the arc-shaped rod 17. Both ends of the arc-shaped tension spring 18 are fixedly connected to the processing box 1 and the first swing sleeve 16, respectively. A second swing sleeve 19, sleeved on the foaming tube 10, is rotatably connected below the first swing sleeve 16. The swing assembly 13 also includes components disposed in the processing box 1. The power mechanism 20 is located at the top of the processing box 1 and connected to the impeller 4. The power mechanism 20 includes a mounting base 21 located at the top of the processing box 1 and fixedly connected to the impeller 4. An electric motor 22 is fixedly connected to the other side of the mounting base 21. The output end of the electric motor 22 is fixedly connected to a power shaft 23 that is rotatably connected to the top of the processing box 1. The power shaft 23 is connected to the first rotating shaft 5 for transmission. A half-stroke gear 24 is also fixedly connected to the power shaft 23. The half-stroke gear 24 meshes with a first gear 25 that is fixedly connected to the linkage shaft 14. A first pulley set 34 for transmission is provided between the power shaft 23 and the first rotating shaft 5.

[0031] A connector 36 is provided at one end of the foaming tube 10 located outside the processing box 1. The foaming tube 10 is connected to the foaming machine via the connector 36. During the foaming process on the refrigerator, the processing box 1 is first opened, and the refrigerator is then fixed onto the placement seat 2. After the top cover of the processing box 1 is closed, the foaming tube 10 is first inserted into the second swing sleeve 19, and then into the connecting sleeve 11 in the through slot 3. Finally, the end of the foaming tube 10 is positioned below the air box 7. Then, the motor 22 is controlled to operate. The output end of the motor 22 drives the power shaft 23 to rotate at the top of the processing box 1, and simultaneously drives the half-stroke gear 24 on the power shaft 23 to rotate. When the half-stroke gear 24 meshes with the first gear 25, the first gear 25 rotates, driving the linkage shaft 14 fixedly connected to it to rotate within the top cover. The linkage shaft 14 further drives the connecting plate 15 to rotate around the linkage shaft 14 as its center. The other end of the connecting plate 15... One end drives the first swing sleeve 16 to move. The first swing sleeve 16 slides from one end to the other on the arc rod 17. The arc spring 18 cooperates to stretch it. At the same time, the first swing sleeve 16 drives the second swing sleeve 19 at the bottom to move. The second swing sleeve 19 drives the foam tube 10 to swing. The connecting sleeve 11 sleeved on the foam tube 10 rotates in the through slot 3 through the connecting shaft 12. When the half-stroke gear 24 disengages from the first gear 25, the arc spring 18 pulls back, pulling the first swing sleeve 16 back on the arc rod 17. The second swing sleeve 19 cooperates to pull the foam tube 10 in the opposite direction again. During the swing of the foam tube 10 with the connecting sleeve 11 as the center, the foam material flows out of the foam tube 10. In the reciprocating swing of the foam tube 10, the contact area between the foam material and the refrigerator is increased, realizing the rapid diffusion of the foam material.

[0032] When the motor 22 operates and drives the power shaft 23 to rotate, it drives the first rotating shaft 5 to rotate through the transmission connection of the first pulley group 34. The first rotating shaft 5 then drives the bearing of the impeller 4 to rotate, thereby driving the impeller 4 to operate. After the impeller 4 operates, the air force enters the air box 7 through the air outlet pipe 6. At the same time, while the first rotating shaft 5 is rotating, it drives the second rotating shaft 26 to rotate through the transmission connection of the second pulley group 35. The second rotating shaft 26 then drives the rotating disk 27, which is fixedly connected to it, to rotate in the air box 7. The push block 28 on the side of the rotating disk 27 also rotates. When the foaming tube 10 swings and foaming material flows out, the push block 28, while rotating, pushes the opening and closing block 32, which is opposite to the discharge end of the foaming tube 10, pushing the opening and closing block 32 and disengaging it from the arched seat 33. At this time, the blowing pipe 8 is fully connected to the air box 7, allowing the air force entering the air box 7 to pass through the arched seat 33. The material enters the air blower 8 below and is eventually blown out through the air blower 8, agitating the foam material that falls on the refrigerator and causing it to flow to all corners of the refrigerator. As the foam material foams, it evenly fills the refrigerator. As the rotating disk 27 continues to rotate, it gradually disengages from the opening and closing block 32. The spring 31 between the fixed seat 30 and the opening and closing block 32 rebounds, pushing the opening and closing block 32 back under the arched seat 33, achieving a second closure. As the rotating disk 27 rotates, the pushing block 28 contacts the two sets of opening and closing blocks 32 in sequence. This not only increases the airflow on one side but also ensures that the pushing block 28 is always positioned opposite to the outlet end of the foaming tube 10. This allows some of the foam material to accumulate after it flows out. When the foaming tube 10 moves to the opposite direction, the airflow from the air blower 8 agitates the accumulated foam material, causing it to flow and increasing the contact area with the refrigerator.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A refrigerator case foaming hot plate processing apparatus characterized by, The utility model relates to a processing box (1) is provided with the seat (2) of placing in the processing box (1), and one side of the top of processing box (1) is provided with the through slot (3), the top of processing box (1) is provided with wind wheel (4), the bearing of wind wheel (4) is fixedly connected with the first rotation axis (5) of rotation connection with the top of processing box (1), and the air outlet of wind wheel (4) is provided with the air outlet pipe (6) of one end communication therewith, the other end of air outlet pipe (6) is communicated with the air box (7) of being provided in the top of processing box (1), the both ends of air box (7) are communicated with multiple groups of blowing pipe (8), and the switching mechanism (9) is provided in the air box (7), the through slot (3) is provided with foaming pipe (10), the foaming pipe (10) is provided with the connecting sleeve (11) of connection, the connecting sleeve (11) is fixedly connected with the connecting shaft (12) of rotation connection with the through slot (3), the foaming pipe (10) is connected with the swing subassembly (13) of being provided in the top of processing box (1). The swing subassembly (13) includes the linkage shaft (14) of rotation connection with the top of processing box (1), one end of the linkage shaft (14) is provided with the connecting plate (15) of fixed connection, the other end of connecting plate (15) is rotatably connected with the first swing sleeve (16), the first swing sleeve (16) is slidably connected with the arc-shaped rod (17) of fixed connection with the top of processing box (1), the arc-shaped tension spring (18) is provided on the arc-shaped rod (17), the both ends of arc-shaped tension spring (18) are fixedly connected with the processing box (1) and the first swing sleeve (16) respectively, the second swing sleeve (19) of being provided on the foaming pipe (10) is rotatably connected below the first swing sleeve (16), the swing subassembly (13) further includes the power mechanism (20) of being provided in the top of processing box (1) and being connected with the wind wheel (4). The power mechanism (20) includes the mounting seat (21) of being provided in the top of processing box (1) and being fixedly connected with the wind wheel (4), the other side of mounting seat (21) is fixedly connected with the motor (22), the output end of motor (22) is fixedly connected with the power shaft (23) of rotation connection with the top of processing box (1), the power shaft (23) is in transmission connection with the first rotation axis (5), the power shaft (23) is further fixedly connected with the half stroke gear (24), the half stroke gear (24) is in meshing connection with the first gear (25) of being fixedly connected with the linkage shaft (14). ​ 2. The refrigerator case foaming heating plate processing apparatus according to claim 1, characterized in that: The switching mechanism (9) comprises a second rotating shaft (26) rotatably connected to the top end of the processing box (1), the second rotating shaft (26) is rotatably connected to the center of the wind box (7), the first rotating shaft (5) is drivingly connected to the second rotating shaft (26), the bottom end of the second rotating shaft (26) is fixedly connected with a rotating disc (27) arranged in the wind box (7), the side of the rotating disc (27) is fixedly connected with a push block (28), and the switching mechanism (9) comprises an opening and closing piece (29) arranged at both ends inside the wind box (7) and matched with the push block (28).

3. The refrigerator case foaming heating plate processing apparatus according to claim 2, characterized in that: The opening and closing piece (29) comprises two groups of fixed seats (30) fixed at both ends inside the wind box (7), a plurality of springs (31) are arranged on the fixed seat (30) and fixedly connected at one end, a plurality of opening and closing blocks (32) are fixedly connected at the other end of the plurality of springs (31), the positions of the two groups of opening and closing blocks (32) are matched with the push block (28), the opening and closing block (32) is slidingly connected with the bottom end of the wind box (7), an arcuate seat (33) matched with the opening and closing block (32) is arranged above the opening and closing block (32), and the arcuate seat (33) is fixedly connected with the top end of the wind box (7).

4. The refrigerator case foaming heating plate processing apparatus according to claim 1, characterized in that: The cross section of the wind box (7) is an inverted isosceles trapezoid, and a plurality of blowing pipes (8) are arranged on both sides of the wind box (7) and inclined to the two ends of the processing box (1).

5. The refrigerator case foaming heating plate processing apparatus according to claim 1, characterized in that: The power shaft (23) and the first rotating shaft (5) are provided with a first belt pulley set (34) for transmission.

6. The refrigerator case foaming heating plate processing apparatus according to claim 2, characterized in that: The first rotating shaft (5) and the second rotating shaft (26) are provided with a second belt pulley set (35) for transmission.

7. The refrigerator case foaming heating plate processing apparatus according to claim 3, characterized in that: A plurality of springs (31) are arranged on the fixed seat (30) in a straight line at equal intervals.

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