Refrigerator accessory injection molding equipment

Abstract

The invention belongs to the technical field of refrigerator accessory machining, and particularly relates to refrigerator accessory injection molding equipment which comprises a machining table, an air cylinder is installed on one side of the top end of the machining table, an injection molding assembly is installed on the other side of the top end of the machining table, a cooling box is fixed in the machining table, and a plurality of first mold bases are arranged on the side, close to the injection molding assembly, of the air cylinder. One end, close to the injection molding assembly, of the first mold base is provided with an injection molding opening, and one side, close to the cylinder, of the first mold base is provided with a second mold base; the second mold base and the first mold base can be pushed to be closed through the air cylinder, the second mold base and the first mold base can be separated through the second spring, formed plastic accessories can be automatically taken out, a boss on the second mold base can be corrected through a groove in the push plate, deviation between an injection molding head of an injection molding assembly and an injection molding opening in the using process can be prevented, and the injection molding efficiency is improved. And meanwhile, a button in the groove is matched, so that a worker is warned in time when the deviation is too large, and the injection molding head can be protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigerator accessory processing, and specifically relates to an injection molding device for refrigerator accessories. Background Art

[0002] A refrigerator is a common household appliance in life. Refrigerators can be used to refrigerate and freeze food. Many accessories are used in refrigerators, and most of these accessories are made of plastic. Injection molding equipment is used in the production and processing of plastic accessories.

[0003] A Chinese patent with the publication number CN112060475B authorizes an automatic demolding injection mold with replaceable molds, including symmetrically arranged first and second rotating disks. Matching upper and lower molds are symmetrically arranged between the first and second rotating disks. The injection mold can be replaced without stopping the machine, and at the same time, the injection molded part can be easily demolded. The demolding is convenient, and the demolding position can also be better cooled, reducing damage to the injection molded part.

[0004] During the use of the above technical solution, during the injection molding process, the upper and lower molds need to be closed by a mechanism, and then injection molding and cooling operations are carried out. However, during this process, multiple molds are in the same state, opening or closing simultaneously. At this time, the already cooled injection molded parts need to wait for the injection molded parts in other molds to cool, resulting in more time consumed for injection molding. And after long-term use, there will be errors when rotating the mold to switch stations. At this time, the injection head cannot be aligned with the injection port of the mold, so that the molten material cannot be injected, affecting the injection molding efficiency.

[0005] Therefore, the present invention provides an injection molding device for refrigerator accessories. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An injection molding device for refrigerator accessories according to the present invention includes a processing table. A cylinder is installed on one side of the top of the processing table, and an injection molding component is installed on the other side of the top of the processing table. A cooling box is fixed inside the processing table. A plurality of first mold bases are arranged on the side of the cylinder close to the injection molding component. An injection port is opened at one end of the first mold base close to the injection molding component. A second mold base is arranged on the side of the first mold base close to the cylinder. A rotating structure is arranged inside the cooling box; Support blocks are fixed on both sides of the first mold base. A support rod is fixed at one end of the support block close to the second mold base. Sliders are fixed on both sides of the second mold base. The sliders are slidably connected to the outside of the support rod; A push plate is fixed at the end of the cylinder. A groove is opened on the side of the push plate away from the cylinder. A convex platform is fixed on the side of the second mold base close to the push plate. The convex platform can be engaged with the groove. Buttons are arranged on both sides inside the groove.

[0008] Preferably, the disassembly and assembly structure includes a second spring sleeved outside the support rod. One end of the second spring is fixedly connected to the support block, and the other end of the second spring is fixedly connected to the slider.

[0009] Preferably, the rotating structure includes a rotating frame arranged inside the cooling box. The outside of the rotating frame is fixedly connected to the first mold base. A rotating shaft is fixed on the side of the rotating frame away from the second mold base. The rotating shaft is rotatably connected inside the processing table. A gear is fixed at the end of the rotating shaft away from the rotating frame. A second motor is installed inside the processing table. A gear is fixed at the end of the rotating shaft of the second motor. The gear of the second motor is meshed with the gear of the rotating shaft. A plurality of limiting grooves are equidistantly opened on the outside of the rotating shaft. The directions of the plurality of limiting grooves match the directions of the plurality of first mold bases. A limiting block is arranged above the rotating shaft. A first motor is arranged above the limiting block. The first motor is fixed inside the processing table. A threaded rod is fixed at the end of the rotating shaft of the first motor. The threaded rod is threadedly connected inside the limiting block.

[0010] Preferably, the cooling box is arranged below the cylinder. A partition is fixed in the middle of the cooling box. Overflow ports are arranged on both sides of the top of the partition.

[0011] Preferably, a water pumping cylinder is arranged on one side inside the cooling box. A drainage piston is slidably connected inside the water pumping cylinder. An inlet is fixed at the top of the water pumping cylinder. A one-way valve piece is arranged inside the inlet. A drain pipe is fixed on the side of the water pumping cylinder close to the partition. A one-way valve piece is also arranged inside the drain pipe. The drain pipe penetrates through the partition. An oil pumping cylinder is fixed inside the processing table. An output port of the oil pumping cylinder is fixed with an oil delivery pipe. The other end of the oil delivery pipe is communicated with the inside of the water pumping cylinder.

[0012] Preferably, a transmission gear is meshed and connected below the gear of the transmission shaft. The transmission gear is rotationally connected to the processing table. A turntable is fixed at one end of the transmission gear close to the second motor. One end of the turntable away from the transmission gear is rotationally connected to a connecting rod. The lower part of the connecting rod is rotationally connected to the top end of the oil pumping barrel.

[0013] Preferably, movable cavities are provided on both sides above and below the first die base. Hooks are movably connected inside the movable cavities. Guide columns are fixed inside the movable cavities. A first spring is sleeved outside the guide columns. The top end of the first spring is fixedly connected to the hook. The bottom end of the first spring is fixedly connected to the inner wall of the movable cavity. Fixed holes are provided on both sides above and below the second die base. The hooks can be snap-fitted with the fixed holes.

[0014] Preferably, a wedge-shaped block is fixed at the top end of the hook. A push frame is arranged on one side of the wedge-shaped block away from the second die base. The push frame is slidably connected to the outside of the first die base. A connecting plate is fixed between the push frames. A support plate is fixed on one side of the cooling box close to the injection molding assembly. A convex plate is fixed at the top end of the support plate.

[0015] Preferably, a fixing frame is fixed at one end of the support rod close to the slider. Thumb pins are inserted on both sides of the second die base. A third spring is fixed at one end of the thumb pin close to the fixing frame. The other end of the third spring is fixedly connected to the second die base.

[0016] Preferably, storage grooves are provided above and below the inside of the first die base. Baffles are rotationally connected inside the storage grooves. Turning shafts are fixed on both sides of the baffle. Return springs are fixed outside the turning shafts. The return springs are fixedly connected to the first die base. A convex block is fixed at the end of the turning shaft. A cavity for limiting the convex block is provided inside the first die base. The maximum rotation angle of the baffle is 90°.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For the injection molding equipment for refrigerator accessories of the present invention, the second die base can be pushed to close with the first die base by the air cylinder, and the second spring can separate the second die base from the first die base, so as to automatically take out the formed plastic accessories. The groove inside the push plate can correct the convex platform on the second die base, prevent the injection head of the injection molding assembly from deviating from the injection port during use, cause damage to the injection head, and at the same time cooperate with the button inside the groove to give a warning to the staff in time when the deviation is too large, so as to protect the injection head.

[0019] 2. The injection molding equipment for refrigerator accessories according to the present invention drives the first mold base to rotate through a rotating frame, so that the injection-molded first mold base can automatically leave the injection molding station, and the first mold base is cooled by filling water inside the cooling box. The inside of the cooling box is divided into two chambers by a partition board, and then the water in the two chambers is circulated through a water pumping cylinder and an overflow port, which can accelerate the heat dissipation speed of the water inside the cooling box. The second spring can drive the automatic separation between the second mold base and the first mold base. At the same time, the plastic accessories inside the second mold base can be automatically demolded through a thimble, which can reduce the operation time of demolding, and the formed plastic accessories can be prevented from getting stuck inside the first mold base by the shielding of a baffle. Brief Description of the Drawings

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the cooling box in the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the rotating frame in the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the push plate in the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the limit block in the present invention;

[0026] Figure 6 is a schematic diagram of the internal structure of the water pumping cylinder in the present invention;

[0027] Figure 7 is a schematic diagram of the internal structure of the first mold base in the present invention;

[0028] Figure 8 is Figure 7 a partial enlarged view at A in

[0029] Figure 9 is a schematic diagram of the structure of the support plate in the present invention;

[0030] Figure 10 is a schematic diagram of the structure of the baffle in the present invention;

[0031] Figure 11 is a schematic diagram of the structure of the second mold base in the present invention.

[0032] In the figure: 1. Processing table; 11. Cylinder; 111. Pusher plate; 112. Groove; 113. Boss; 2. Injection molding assembly; 3. Cooling box; 31. Partition; 32. Overflow port; 33. Water pumping cylinder; 331. Drain piston; 332. Water inlet; 333. Drain pipe; 34. Oil pumping barrel; 341. Oil pipeline; 4. First mold base; 41. Rotating frame; 411. Rotating shaft; 412. Limiting groove; 413. Limiting block; 414. First motor; 415. Threaded rod; 42. Second motor; 43. Turntable; 431. Driving gear; 432. Connecting rod; 44. Support plate; 441. Boss; 45. Second mold base; 451. Fixed hole; 46. Hook; 461. Movable cavity; 462. First spring; 463. Wedge block; 464. Pushing frame; 465. Connecting plate; 47. Support block; 471. Support rod; 472. Second spring; 473. Slide block; 474. Fixed frame; 48. Baffle; 481. Flipping shaft; 482. Protrusion; 483. Reset spring; 49. Thimble; 491. Third spring. Detailed implementation mode

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0034] As Figures 1 to 3 shown, an injection molding device for refrigerator accessories according to an embodiment of the present invention includes a processing table 1. A cylinder 11 is installed on one side of the top of the processing table 1, and an injection molding assembly 2 is installed on the other side of the top of the processing table 1. A cooling box 3 is fixed inside the processing table 1. A plurality of first mold bases 4 are arranged on the side of the cylinder 11 close to the injection molding assembly 2. An injection port is opened at one end of the first mold base 4 close to the injection molding assembly 2. A second mold base 45 is arranged on the side of the first mold base 4 close to the cylinder 11. A rotating structure is arranged inside the cooling box 3; Support blocks 47 are fixed on both sides of the first mold base 4. Support rods 471 are fixed at one end of the support blocks 47 close to the second mold base 45. Slide blocks 473 are fixed on both sides of the second mold base 45. The slide blocks 473 are slidably connected to the outside of the support rods 471; A pusher plate 111 is fixed at the end of the cylinder 11. A groove 112 is opened on the side of the pusher plate 111 away from the cylinder 11. A boss 113 is fixed on the side of the second mold base 45 close to the pusher plate 111. The boss 113 can be engaged with the groove 112. Buttons are arranged on both sides inside the groove 112;

[0035] During the production of refrigerator accessories, it is necessary to produce plastic accessories by injection molding. During the injection molding process, the inside of the cooling tank 3 is filled with water. First, the raw materials required for injection molding are put into the hopper of the injection molding assembly 2. At this time, the injection molding assembly 2 can melt the raw materials to form a molten liquid. At the same time, the air cylinder 11 is started to push the second mold base 45 to close into the first mold base 4. During the process of the air cylinder 11 pushing the second mold base 45, the second mold base 45 will move towards the first mold base 4. At this time, the second mold base 45 drives the slider 473 to slide outside the support rod 471. Then the second mold base 45 will close with the first mold base 4. At this time, the mechanism inside the injection molding assembly 2 is started to push its injection head to close with the injection port of the first mold base 4. At this time, the injection molding assembly 2 injects the molten liquid into the first mold base 4. The gap between the first mold base 4 and the second mold base 45 allows the molten liquid to cool and form the required shape. After injecting the molten liquid, the first mold base 4 and the second mold base 45 need a certain amount of time to cool. At this time, the air cylinder 11 and the injection molding assembly 2 are separated from the first mold base 4 and the second mold base 45, and the rotation structure is started to drive the whole to rotate. At this time, the first mold base 4 and the second mold base 45 that need to be cooled are immersed in the water inside the cooling tank 3. When the first mold base 4 and the second mold base 45 rotate back to between the air cylinder 11 and the injection molding assembly 2, the first mold base 4 and the second mold base 45 are separated by the disassembly and assembly structure. At this time, the plastic accessories formed inside can be taken out. During this process, injection molding and cooling are carried out simultaneously, and the plastic accessories are automatically taken out after cooling. Repeating the above steps can continuously carry out injection molding and reduce the waiting time during the cooling process;

[0036] After long-term use, the rotation angle of the rotation structure will deviate from the actual required angle. At this time, the injection head of the injection molding assembly 2 will deviate from the injection port of the first mold base 4. When the injection molding assembly 2 pushes the injection head to carry out injection molding, it will not be able to dock with the injection port. At this time, the injection head will be damaged. Therefore, during the process of the air cylinder 11 pushing the second mold base 45, the push plate 111 at the end of the air cylinder 11 is pushed. The push plate 111 moves towards the second mold base 45. When the push plate 111 is close to the second mold base 45, it will first contact the boss 113. At this time, the groove 112 at one end of the push plate 111 will be aligned with the boss 113. Under the push of the air cylinder 11, the groove 112 can correct the boss 113. After correction, the boss 113 can press the two buttons inside the groove. When the angle difference between the boss 113 and the groove 112 is too large, the groove 112 cannot correct the boss 113. At this time, the buttons inside the groove 112 cannot be pressed simultaneously. At this time, an alarm is issued to inform the staff to manually calibrate the injection molding machine, which can prevent the injection head of the injection molding assembly 2 from being damaged during the injection molding process.

[0037] Such as Figure 7As shown, the disassembly and assembly structure includes a second spring 472 sleeved outside the support rod 471. One end of the second spring 472 is fixedly connected to the support block 47, and the other end of the second spring 472 is fixedly connected to the slider 473;

[0038] When the first mold base 4 and the second mold base 45 return to the position between the cylinder 11 and the injection molding assembly 2 after cooling, the second spring 472 pushes the slider 473, and the slider 473 drives the separation between the second mold base 45 and the first mold base 4. At this time, the second mold base 45 and the first mold base 4 can be automatically separated.

[0039] As Figures 3 to 5 shown, the rotation structure includes a rotating frame 41 arranged inside the cooling box 3. The outside of the rotating frame 41 is fixedly connected to the first mold base 4. A rotating shaft 411 is fixed on one side of the rotating frame 41 away from the second mold base 45. The rotating shaft 411 is rotatably connected inside the processing table 1. A gear is fixed at one end of the rotating shaft 411 away from the rotating frame 41. A second motor 42 is installed inside the processing table 1. A gear is fixed at the end of the rotating shaft of the second motor 42. The gear of the second motor 42 is meshed with the gear of the rotating shaft 411. A plurality of limiting grooves 412 are equally spaced on the outside of the rotating shaft 411. The directions of the plurality of limiting grooves 412 match the directions of the plurality of first mold bases 4. A limiting block 413 is arranged above the rotating shaft 411. A first motor 414 is arranged above the limiting block 413. The first motor 414 is fixed inside the processing table 1. A threaded rod 415 is fixed at the end of the rotating shaft of the first motor 414. The threaded rod 415 is threadedly connected inside the limiting block 413;

[0040] When it is necessary to drive the whole to rotate, start the second motor 42 to drive the gear at the end of the rotating shaft 411 to rotate through the gear at its end. At this time, the rotating shaft 411 drives the rotating frame 41 to rotate. At this time, the rotating frame 41 drives the plurality of first mold bases 4 to rotate 90° simultaneously. During the rotation of the rotating shaft 411, the limiting block 413 and the limiting groove 412 are in a separated state. At this time, the rotating shaft 411 can rotate. When the rotating frame 41 drives the first mold base 4 to rotate, the limiting groove 412 rotates synchronously. Then the rotating frame 41 stops rotating. At this time, start the first motor 414 to drive the threaded rod 415 to rotate. The rotation of the threaded rod 415 can push the limiting block 413 downward. The downward movement of the limiting block 413 can be inserted into the internal of the limiting groove 412. At this time, the rotating shaft 411 can be fixed, and the rotating shaft 411 can fix the rotating frame 41, so that the first mold base 4 can be in a stable state during the injection molding process.

[0041] As Figure 2 shown, a partition 31 is fixed in the middle of the cooling box 3. Overflow ports 32 are arranged on both sides of the top of the partition 31;

[0042] During use, the water level in the cooling tank 3 is lower than the height of the overflow port 32. The partition 31 divides the interior of the cooling tank 3 into two chambers. When the first mold base 4 rotates inside the cooling tank 3, the water level in the first chamber where the first mold base 4 is located will rise. At this time, the overflowing water can enter the second chamber through the overflow port 32, preventing the water from overflowing to the outside. Since the higher the water temperature, the lower the density, the high-temperature water will be at the highest water level. At this time, the first mold base 4 and the second mold base 45 can be initially cooled in the water, preventing the plastic fittings from cracking due to excessive cooling caused by too low water temperature. At the same time, the first mold base 4 at the highest position after rotation is used for injection molding at this time. After the injection molding is completed, the rotating frame 41 continues to rotate 90°. At this time, the first mold base 4 and the second mold base 45 that initially underwent injection molding are at the deepest part inside the cooling tank 3, enabling further cooling of the first mold base 4 and the second mold base 45 at this time. At this time, a temperature difference can be generated between the first mold base 4 and the second mold base 45 and the water at the depth, enabling continuous cooling.

[0043] As Figures 2 to 6 shown, a water pumping cylinder 33 is provided on one side inside the cooling tank 3. A drainage piston 331 is slidably connected inside the water pumping cylinder 33. The top of the water pumping cylinder 33 is fixed with a water inlet 332. A check valve disc is provided inside the water inlet 332. A drain pipe 333 is fixed on the side of the water pumping cylinder 33 close to the partition 31. A check valve disc is also provided inside the drain pipe 333. The drain pipe 333 penetrates inside the partition 31. An oil pumping cylinder 34 is fixed inside the processing table 1. The output port of the oil pumping cylinder 34 is fixed with an oil delivery pipe 341. The other end of the oil delivery pipe 341 is communicated with the inside of the water pumping cylinder 33;

[0044] During the rotation of the rotating frame 41, push and pull the telescopic rod of the oil pumping cylinder 34. The oil pumping cylinder 34 is filled with hydraulic oil. By driving the internal piston through the telescopic rod, the hydraulic oil can be input into the inside of the water pumping cylinder 33 through the oil delivery pipe 341, and the drainage piston 331 can be pushed to move by the hydraulic oil. During the movement, the water inside the second chamber of the cooling tank 3 is pumped in through the water inlet 332. At this time, the check valve disc inside the drain pipe 333 closes. Then, under the push of the hydraulic oil, the drainage piston 331 pushes the water inside the water pumping cylinder 33. At this time, the check valve disc inside the water inlet 332 closes, and the check valve disc inside the drain pipe 333 opens. At this time, the water can be discharged into the first chamber through the drain pipe 333, reducing the water temperature in the first chamber after cooling the first mold base 4 and the second mold base 45. The relatively high-temperature water flow above the first chamber can be discharged back into the second chamber through the overflow port 32. At this time, the second chamber can assist the first chamber in dissipating heat from the water inside.

[0045] As Figures 2 to 3As shown, a transmission gear 431 is meshed and connected below the gear of the rotating shaft 411. The transmission gear 431 is rotatably connected to the processing table 1. A turntable 43 is fixed at one end of the transmission gear 431 close to the second motor 42. One end of the turntable 43 away from the transmission gear 431 is rotatably connected to a connecting rod 432. The lower part of the connecting rod 432 is rotatably connected to the top end of the oil pumping cylinder 34;

[0046] During the rotation of the transmission shaft 411, the transmission gear 431 will be driven to rotate by the gear. At this time, the transmission gear 431 drives the turntable 43 to rotate, and the turntable 43 drives the connecting rod 432 to move. The connecting rod 432 can drive the telescopic rod of the oil pumping cylinder 34 to expand and contract. At this time, when the rotating frame 41 drives the first mold base 4 to rotate, the water inside the second space can be automatically pumped into the second space, and the pumping will automatically stop when the rotating frame 41 stops rotating.

[0047] As Figures 7 to 8 shown, movable cavities 461 are provided on both sides above and below the first mold base 4. Hooks 46 are movably connected inside the movable cavities 461. Guide posts are fixed inside the movable cavities 461. A first spring 462 is sleeved outside the guide posts. The top end of the first spring 462 is fixedly connected to the hook 46, and the bottom end of the first spring 462 is fixedly connected to the inner wall of the movable cavity 461. Fixed holes 451 are provided on both sides above and below the second mold base 45. The hook 46 can be snap-fitted with the fixed holes 451;

[0048] During the closing process of the second mold base 45 towards the first mold base 4, the fixed holes 451 will move along with the position of the second mold base 45 close to the hook 46, and the slope at the front end of the hook 46 is pushed by the edge of the fixed hole 451. At this time, the hook 46 is pushed to move downward, and then the front end of the hook 46 is inserted into the inside of the fixed hole 451. When the second mold base 45 and the first mold base 4 are completely closed, the first spring 462 pushes the hook 46 to bounce up. At this time, the hook 46 is stuck inside the fixed hole 451, which can fix the second mold base 45 and the first mold base 4, and can keep the first mold base 4 and the second mold base 45 in a closed state during the immersion cooling process.

[0049] As Figures 2 to 9 shown, a wedge-shaped block 463 is fixed at the top end of the hook 46. A push frame 464 is arranged on one side of the wedge-shaped block 463 away from the second mold base 45. The push frame 464 is slidably connected to the outside of the first mold base 4. A connecting plate 465 is fixed between the push frames 464. A support plate 44 is fixed on one side of the cooling box 3 close to the injection molding assembly 2. A convex plate 441 is fixed at the top end of the support plate 44;

[0050] When the first die holder 4 and the second die holder 45 are cooled and rotated from the inside of the cooling box 3 to the position between the cylinder 11 and the injection molding assembly 2, the push frame 464 and the connecting plate 465 will pass by the support plate 44. When the first die holder 4 rotates to the position of the convex plate 441, the convex plate 441 will push the connecting plate 465. At this time, the connecting plate 465 pushes the push frame 464, and the push frame 464 pushes the wedge block 463 so that the front end of the hook 46 is separated from the fixing hole 451. At this time, the fixing state between the second die holder 45 and the first die holder 4 can be released. Subsequently, under the elastic force of the second spring 472, the second die holder 45 and the first die holder 4 can be automatically separated.

[0051] As Figures 7 to 11 shown, a fixing frame 474 is fixed to one end of the support rod 471 close to the slider 473. Thimble 49 is inserted on both sides of the second die holder 45. A third spring 491 is fixed to one end of the thimble 49 close to the fixing frame 474. The other end of the third spring 491 is fixedly connected to the second die holder 45;

[0052] In the state where the second die holder 45 and the first die holder 4 are closed, the thimble 49 is inserted into the inside of the second die holder 45, and at the same time, the end of the thimble 49 is flush with the inner surface of the second die holder 45. When the second spring 472 pushes the slider 473 to separate the second die holder 45 from the first die holder 4, the second die holder 45 will drive the thimble 49 to move at the same time. Then, the other end of the thimble 49 will contact the fixing frame 474. Under the push of the fixing frame 474, the thimble 49 can eject the molded plastic fittings inside the second die holder 45. At this time, the third spring 491 is compressed. When the second die holder 45 and the first die holder 4 are closed, the third spring 491 drives the thimble 49 to automatically reset.

[0053] As Figures 7 to 10 shown, receiving grooves are provided above and below the inside of the first die holder 4. A baffle 48 is rotatably connected inside the receiving groove. Flip shafts 481 are fixed to both sides of the baffle 48. A return spring 483 is fixed to the outside of the flip shaft 481. The return spring 483 is fixedly connected to the first die holder 4. A convex block 482 is fixed to the end of the flip shaft 481. A cavity for limiting the convex block 482 is provided inside the first die holder 4. The maximum rotation angle of the baffle 48 is 90°;

[0054] In the state where the second die holder 45 is separated from the first die holder 4, the baffle 48 is perpendicular to the inner bottom end of the first die holder 4. At this time, when the ejector pin 49 pushes out the plastic fittings inside the second die holder 45, the baffle 48 can block the plastic fittings to prevent the plastic fittings from being stuck inside the first die holder 4 and unable to be discharged to the outside normally. When the second die holder 45 and the first die holder 4 are closed, the front end of the second die holder 45 will push and flip the baffle 48. After the baffle 48 is flipped, it will be stuck inside the receiving groove of the first die holder 4. At this time, the return spring 483 is in a contracted state. When the second die holder 45 is separated from the first die holder 4 again, the return spring 483 will drive the baffle 48 to flip 90° through the flip shaft 481. At this time, the convex block 482 rotates in the cavity of the first die holder 4, which can limit the flipping angle of the baffle 48.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigerator parts injection molding equipment, characterized in that: It comprises a processing table, a cylinder is installed on one side of the top of the processing table, an injection molding component is installed on the other side of the top of the processing table, a cooling box is fixed inside the processing table, a plurality of first mold bases are arranged on one side of the cylinder close to the injection molding component, an injection molding port is opened on one end of the first mold base close to the injection molding component, a second mold base is arranged on one side of the first mold base close to the cylinder, and a rotating structure is arranged inside the cooling box; Support blocks are fixed on both sides of the first die base, a support rod is fixed on one end of the support block close to the second die base, and sliders are fixed on both sides of the second die base, and the sliders are slidably connected to the outside of the support rods; A push plate is fixed at the end of the cylinder, a groove is provided on the side of the push plate away from the cylinder, a boss is fixed on the side of the second die base close to the push plate, the boss can be engaged with the groove, and buttons are provided on both sides of the groove.

2. The refrigerator parts injection molding equipment according to claim 1, characterized in that: The disassembly and assembly structure comprises a second spring sleeved on the outside of the support rod, one end of the second spring is fixedly connected to the support block, and the other end of the second spring is fixedly connected to the sliding block.

3. The refrigerator parts injection molding equipment according to claim 2, characterized in that: The rotating structure includes a rotating frame arranged inside the cooling box, the outside of the rotating frame is fixedly connected to the first mold base, a rotating shaft is fixed on the side of the rotating frame away from the second mold base, the rotating shaft is rotatably connected to the inside of the processing table, a gear is fixed on the end of the rotating shaft away from the rotating frame, a second motor is installed inside the processing table, a gear is fixed on the end of the rotating shaft of the second motor, the gear of the second motor is meshed with the gear of the rotating shaft, a plurality of limit grooves are evenly spaced on the outside of the rotating shaft, the plurality of limit grooves match the directions of the plurality of first mold bases, a limit block is arranged above the rotating shaft, a first motor is arranged above the limit block, the first motor is fixed inside the processing table, a threaded rod is fixed on the end of the rotating shaft of the first motor, and the threaded rod is threadedly connected to the inside of the limit block.

4. The refrigerator parts injection molding equipment according to claim 1, characterized in that: The cooling box is arranged below the cylinder, a partition is fixed in the middle of the cooling box, and overflow ports are arranged on both sides of the top of the partition.

5. The refrigerator parts injection molding equipment according to claim 4, characterized in that: A water pump is provided on one side of the cooling box, and a drainage piston is slidably connected to the inside of the water pump. A water inlet is fixed on the top of the water pump, and a one-way valve is provided inside the water inlet. A drainage pipe is fixed on the side of the water pump close to the partition, and a one-way valve is also provided inside the drainage pipe. The drainage pipe runs through the inside of the partition, and an oil pump is fixed inside the processing table, and an oil pipeline is fixed to the output port of the oil pump, and the other end of the oil pipeline is connected to the inside of the water pump.

6. The refrigerator parts injection molding equipment according to claim 5, characterized in that: A transmission gear is meshed and connected below the gear of the rotating shaft, and the transmission gear is rotatably connected to the processing table. A turntable is fixed to the end of the transmission gear close to the second motor, and a connecting rod is rotatably connected to the end of the turntable away from the transmission gear, and the bottom of the connecting rod is rotatably connected to the top of the pumping cylinder.

7. The refrigerator parts injection molding equipment according to claim 1, characterized in that: Both sides above and below the first mold base are provided with movable cavities, the interior of the movable cavity is movably connected with a hook, the interior of the movable cavity is fixed with a guide column, the exterior of the guide column is sleeved with a first spring, the top end of the first spring is fixedly connected to the hook, the bottom end of the first spring is fixedly connected to the inner wall of the movable cavity, and both sides above and below the second mold base are provided with fixing holes, and the hooks can be engaged and connected with the fixing holes.

8. The refrigerator parts injection molding equipment according to claim 7, characterized in that: A wedge block is fixed to the top of the hook, a push frame is arranged on the side of the wedge block away from the second mold base, the push frame is slidably connected to the outside of the first mold base, a connecting plate is fixed between the push frames, a support plate is fixed on the side of the cooling box close to the injection molding component, and a convex plate is fixed on the top of the support plate.

9. The refrigerator parts injection molding equipment according to claim 6, characterized in that: A fixing frame is fixed to one end of the support rod close to the slider, ejectors are inserted on both sides of the second mold base, a third spring is fixed to one end of the ejector close to the fixing frame, and the other end of the third spring is fixedly connected to the second mold base.

10. The refrigerator parts injection molding equipment according to claim 6, characterized in that: A storage groove is provided at the top and bottom of the first mold base, and a baffle is rotatably connected inside the storage groove. Flip shafts are fixed on both sides of the baffle, and a reset spring is fixed on the outside of the flip shaft. The reset spring is fixedly connected to the first mold base, and a protrusion is fixed at the end of the flip shaft. A cavity for limiting the protrusion is provided inside the first mold base, and the maximum rotation angle of the baffle is 90°.

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