An injection molding machine for air conditioner plastic components

Abstract

The present invention relates to an air-conditioning plastic component injection molding machine, which relates to the technical field of air-conditioning plastic component injection molding, and solves the technical problem that product defects may occur if the injection molding screw does not stop during injection molding. The machine comprises an injection molding support seat, an injection molding storage box, an injection molding shell and an injection molding fixing frame. An injection molding motor is arranged in the injection molding shell, an injection molding frame is arranged inside the injection molding shell, a slotted frame is arranged at one end of the injection molding motor, a matching slot is arranged inside the slotted frame, a connecting structure is arranged inside the slotted frame, a matching block is arranged at one end of the matching block, a support rod is arranged at one end of the supporting rod, a supporting sleeve is connected to the supporting rod, an injection molding screw is arranged at one end of the support rod, a connecting rod is arranged at one end of the injection molding screw, a tapered block is arranged on the surface of the connecting rod, an injection molding head is arranged at one end of the connecting rod, an inner cavity is arranged inside the injection molding frame, a sealing sleeve is arranged inside the inner cavity, a fixing seat is arranged on the inner side of the injection molding fixing frame, and a fixed air-conditioning component mold is arranged on one side of the fixing seat. During the injection molding process, the injection molding screw will not rotate accordingly, thereby reducing the possibility of defects in air-conditioning plastic component products.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding of air conditioner plastic components, in particular to an injection molding machine for air conditioner plastic components. Background Art

[0002] The air conditioner plastic component injection molding machine is a type of injection molding equipment specially used to process thermoplastic plastic raw materials into air conditioner components. The plastic particles are heated to a molten state through a heating device, and then the molten plastic is injected into a pre-designed mold cavity under a certain pressure and speed. After cooling and shaping, the mold is opened to take out the molded air conditioner plastic component.

[0003] When the air conditioner plastic component cools to a sufficient hardness and strength, the injection molding machine's clamping system opens the mold, and the ejector ejects the molded air conditioner component from the mold cavity. After inspection and trimming, the removed component can enter the next production process or be used directly as a finished product. The mold then closes again to enter the next injection molding cycle.

[0004] However, in actual production, defects such as burrs and bubbles may appear on the components after air-conditioning injection molding. Such defects are generally caused by injection pressure, speed, mold sealing, screw speed and other factors. However, after checking one by one, it was found that product defects still exist in some cases. Later, our experienced R&D personnel found that this situation mainly occurred during the maintenance period. The main reason is that the air-conditioning plastic components are conveyed by the injection molding screw during normal feeding. During injection, the injection molding screw stops rotating and the injection nozzle is pressurized to push the injection. Since the motor of the injection molding screw is generally controlled manually by the old machine and by the sensor of the new machine, it was found that the operator forgot to shut down the injection molding screw or the sensor was damaged or the response was insensitive, resulting in the injection molding screw not stopping and still rotating during injection.

[0005] In addition, when the plastic is discharged, the temperature in the injection screw cavity is very high. When the injection is pushed, the plastic in the barrel is pushed by the injection screw so that some of the plastic will still enter the conveying bin when not feeding. This part of the plastic simply follows the injection screw forward, then melts at high temperature, and then returns to the feed port. Over time, the feed port will be blocked due to the solidification of the melted plastic, making discharge difficult.

[0006] At the same time, since the current unloading process is for plastic products, two solutions are generally used for unloading the body itself. For small components, they are directly pushed out after injection molding and then dropped by gravity. For large components, they are completed with the help of multi-degree-of-freedom mechanical grippers. Here we mainly refer to small air-conditioning components. Although they are plastic products, they have just been injection molded, so each time they are dropped, there will still be bumps, damage, and deformation of the products.

[0007] On this basis, the present invention provides an air conditioner plastic component injection molding machine to solve the above problems. Summary of the Invention

[0008] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an air-conditioning plastic component injection molding machine. The present invention has an ingenious structure and focuses on practicality. It effectively solves the technical problems of the existing air-conditioning plastic components, such as product defects caused by the injection screw not stopping during injection molding, and slow material discharge speed caused by solidification after high-temperature melting at the feed port.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] An air conditioner plastic component injection molding machine includes an injection molding support base, an injection molding storage box, an injection molding shell and an injection molding fixing frame, characterized in that the injection molding shell is fixedly installed on the top of the injection molding storage box, an injection molding motor is fixedly installed on the inner side of the injection molding shell, an injection molding frame is fixedly installed inside the injection molding shell, a slotted frame is fixedly installed on one end of the injection molding motor output shaft, a matching card slot with internal teeth is provided at the inner end of the slotted frame, a connecting structure is provided inside the slotted frame, a matching card block with external teeth is slidably connected inside the connecting structure, a support rod is welded to one end of the matching card block, a support sleeve is rotatably connected to the surface of the support rod, and a support An injection molding push rod is arranged between the sleeve and the injection molding frame, an injection molding screw is welded to one end of the support rod, a plurality of blocking and breaking frames are fixedly installed on the surface of the injection molding screw, a connecting rod is fixedly installed at one end of the injection molding screw, a conical block is fixedly installed on the surface of the connecting rod, an injection molding head is fixedly installed at one end of the connecting rod, an inner cavity is opened inside the injection molding frame, a sealing sleeve is slidably installed inside the inner cavity, the injection molding fixing frame is fixedly installed between the injection molding support seat and the injection molding storage box, a fixing seat is fixedly installed on the inner side of the injection molding fixing frame, a fixed air-conditioning component mold is fixedly installed on one side of the fixing seat, and one end of the injection molding frame is connected to a position on one side of the fixed air-conditioning component mold.

[0011] Preferably, the connection structure includes an outer sleeve fixedly mounted on the inner side of the slotted frame, gear teeth are provided on the inner side of the outer sleeve, a rotating wheel is rotatably connected to the inner side of the outer sleeve, a return spring is provided on the inner side of the rotating wheel, a limiting slider is welded at one end of the return spring, a limiting block is fixedly mounted on one side of the limiting slider, a matching block that can cooperate with the matching slot is slidably connected to the inner side of the rotating wheel, a plurality of heaters are installed inside the injection molding frame, a limiting slot is provided inside the rotating wheel, and the limiting slider is slidably connected to the inner side of the limiting slot.

[0012] Preferably, a barrel is fixedly mounted on the injection molding shell and the injection molding frame, the bottom end of the barrel and the inner cavity are communicated with each other, a limiting sleeve is fixedly mounted inside the barrel, an adjustment shaft is rotatably connected inside the limiting sleeve, a stirring frame is fixedly mounted on the surface of the adjustment shaft, a connecting sleeve is fixedly mounted on the bottom end of the stirring frame, and a unloading auger is fixedly mounted on the bottom end of the connecting sleeve.

[0013] Preferably, the barrel is funnel-shaped as a whole, and a closable protective cover is provided on the top of the barrel.

[0014] Preferably, a driving motor is fixedly mounted on one side of the barrel, a rotating wheel is provided at the top end of the output shaft of the driving motor, a track is transmission-connected to the surface of the rotating wheel, and the track is provided on the surface of the adjusting shaft through another rotating wheel.

[0015] Preferably, a through hole is opened inside the injection molding frame, and a cleaning plate is hinged on the inside of the through hole. The cross-sections of the through hole and the cleaning plate are both square. The side length of the through hole is equal to the diameter of the outer diameter of the bottom tube of the barrel, and the side length of the cleaning plate is greater than the side length of the through hole. A connecting arm is hinged on the cleaning plate, and a push plate is hinged on the connecting arm. The push plate is fixedly installed on one side of the supporting sleeve, and a connecting shaft cleaning brush is fixedly installed on the surface of the unloading auger near the bottom end.

[0016] Preferably, a material discharge groove is provided inside the injection molding support seat, a material discharge push rod is fixedly installed on the injection molding support seat, one end of the material discharge push rod output shaft is fixedly installed with a moving seat, a dynamic air-conditioning component mold is fixedly installed on one side of the moving seat, the dynamic air-conditioning component mold and the fixed air-conditioning component mold match each other, a fixed plate is fixedly installed on the top of the injection molding support seat, a connecting cylinder frame is fixedly installed on the inner side of the fixed plate, a moving rod is slidably connected to the inside of the connecting cylinder frame, a push rod slidably connected to the moving seat and the dynamic air-conditioning component mold is fixedly installed on one end of the moving rod, and a buffer spring is provided between the moving seat and the moving rod.

[0017] Preferably, a rotating shaft is rotatably connected to the inner side of the discharge chute, a buffer plate is fixedly installed on one side of the rotating shaft, an inclined sliding groove is opened on the rotating shaft, an adjustment frame is slidably connected inside the inclined sliding groove, and the adjustment frame is fixedly connected to the bottom of the movable seat.

[0018] Preferably, a limiting rod is welded to one side of the fixed plate, a connecting sleeve is provided inside the movable seat, and the movable seat is slidably connected to the limiting rod via the connecting sleeve.

[0019] Preferably, a protective shell is fixedly mounted on the injection molding support seat, a protective baffle is slidably connected to the interior of the protective shell, and an observation window is provided on the surface of the protective baffle.

[0020] The present invention has the following technical effects.

[0021] 1. When the injection molding motor of the present invention is driven in the pushing direction, the injection molding screw connected to it through the structure is driven to rotate accordingly. The injection molding screw can push the air-conditioning component raw materials toward the fixed air-conditioning component mold. At the same time, the rotating injection molding screw will drive the blocking and breaking frame connected to it to rotate. The rotating blocking and breaking frame breaks and mixes the component raw materials to ensure the quality of subsequent injection molding raw materials. The blocking and breaking frame also blocks the material transmission to increase the residence time of the component raw materials. With the help of the heater, the raw materials are fully melted to ensure the state of the raw materials. The injection molding push rod works The operation can drive the injection screw, the conical block and the injection head to move. First, the conical block contacts the sealing sleeve to seal the injection space, and then the raw material is pushed out to realize injection molding. When the injection screw is pushed out, the matching block disengages from the matching slot, and the connection structure does not limit the rotation of the matching block. Therefore, the injection screw will not rotate during the injection molding process, which greatly reduces the situation where the injection screw rotates when pushed into the injection molding due to improper operation or malfunction during the injection molding process, reduces the impact of the injection molding process, and reduces the occurrence of defects in air-conditioning plastic component products.

[0022] 2. The present invention drives the adjustment shaft to rotate by driving the motor, cooperating with the runner and the crawler. The rotation of the adjustment shaft in different directions can achieve the purpose of only mixing and crushing without being able to discharge the material or continuous discharge of the material during the mixing and crushing process. At this time, it can be selected according to the state of the component raw materials, which greatly improves the actual efficiency of the subsequent injection molding work. At the same time, the rotation of the adjustment shaft can drive the connecting shaft cleaning brush to rotate with it, and can clean the material attached to the surface of the cleaning plate that is turned into a horizontal shape. When the push plate is pushed to move, the cleaning plate is driven to rotate by means of the transmission of the connecting arm and the hinged connection between the cleaning plate itself and the through hole, which can scrape and clean the inner wall of the through hole and seal the bottom port of the barrel to reduce the blockage caused by the high temperature of the discharge port during injection molding and the difficulty in discharge.

[0023] 3. The present invention drives the dynamic air-conditioning component mold and the movable seat to move by the operation of the unloading push rod. When the dynamic air-conditioning component mold moves in the direction close to the fixed air-conditioning component mold, the connection and cooperation between the dynamic air-conditioning component mold and the fixed air-conditioning component mold can be realized, and at the same time, the adjustment frame fixedly installed with the movable seat can be driven to move, and the inclined slide groove can be cooperated to drive the rotating shaft and the buffer plate to rotate in the vertical direction. When the unloading push rod works to drive the dynamic air-conditioning component mold away from the fixed air-conditioning component mold, the dynamic air-conditioning component mold pushes the component out of the dynamic air-conditioning component mold with the help of the push rod during the movement. At the same time, during the movement, the buffer plate is driven to rotate in the horizontal direction (through the above principle), and the demoulded component will fall onto the buffer plate in a horizontal state. When the fixed air-conditioning component mold is connected to the dynamic air-conditioning component mold, the buffer plate unloads vertically, otherwise the buffer plate receives the material horizontally, thereby realizing the purpose of automatic buffering and unloading of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0029] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0030] Figure 6 for Figure 4 Enlarged view of point C in the middle.

[0031] Figure 7 for Figure 5 Schematic diagram of the side cross-sectional structure of the connecting structure.

[0032] Figure 8 It is a schematic diagram of the rear cross-section and a partially enlarged structure of the rotating shaft of the present invention.

[0033] Figure 9 for Figure 8 Enlarged view of point D in the middle.

[0034] Reference numerals:

[0035] 1. Injection molding support base; 2. Injection molding storage box; 3. Injection molding shell; 4. Cylinder; 5. Injection molding frame; 6. Injection molding fixed frame; 7. Fixed seat; 8. Limit rod; 9. Fixed air conditioning component mold; 10. Dynamic air conditioning component mold; 11. Moving seat; 12. Protective shell; 13. Protective baffle; 14. Handle; 15. Unloading chute; 16. Observation window; 17. Slotting frame; 18. Unloading push rod; 19. Fixed plate; 20. Adjustment frame; 21. Connecting sleeve; 22. Drive motor; 23. Rotating wheel; 24. Track; 25. Adjustment shaft; 26. Limit sleeve; 27. Injection molding motor; 28. Injection molding push rod; 29. Injection molding screw; 30. Heater; 31. Injection molding head; 32. Stirring frame; 3 3. Connecting sleeve; 34. Unloading auger; 35. Inner cavity; 36. Blocking frame; 37. Support sleeve; 38. Support rod; 39. Connecting rod; 40. Blocking sleeve; 41. Conical block; 42. Matching slot; 43. Matching block; 44. Connecting structure; 441. Outer sleeve; 442. Gear teeth; 443. Limit block; 444. Limiting slide; 445. Limiting slider; 446. Return spring; 447. Rotating wheel; 45. Inclined slide; 46. Rotating shaft; 47. Buffer plate; 48. Connecting drum frame; 49. Moving rod; 50. Buffer spring; 51. Pushing rod; 52. Coupling cleaning brush; 53. Through hole; 54. Cleaning plate; 55. Connecting arm; 56. Pushing plate. DETAILED DESCRIPTION

[0036] The above and other technical contents, features and effects of the present invention are described below with reference to the attached Figures 1 to 9 The details of the embodiments will be clearly presented. The contents mentioned in the following embodiments are all based on the accompanying drawings.

[0037] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0038] The present invention is an air-conditioning plastic component injection molding machine, comprising an injection molding support base 1, an injection molding storage box 2, an injection molding shell 3 and an injection molding fixing frame 6, the injection molding shell 3 is fixedly mounted on the top of the injection molding storage box 2, an injection molding motor 27 is fixedly mounted on the inside of the injection molding shell 3, the injection molding motor 27 is connected to the power supply and the controller, an injection molding frame 5 is fixedly mounted inside the injection molding shell 3, the injection molding shell 3 and the injection molding frame 5 are arranged to promote injection molding and feeding mixing to provide a reasonable installation space, one end of the output shaft of the injection molding motor 27 is fixedly mounted with a slotted frame 17 placed in the injection molding frame 5, a matching slot 42 is provided inside the slotted frame 17, and an annular internal tooth is provided in the matching slot 42. 17 is provided with a connecting structure 44 inside, and the connecting structure 44 can cooperate with the matching block 43 to rotate and drive the work. The matching block 43 is slidably connected inside the connecting structure 44, and an annular external tooth is provided on the outside of the matching block 43. The matching slot 42 and the matching block 43 can match. A support rod 38 is welded to one end of the matching block 43, and a support sleeve 37 is rotatably connected to the surface of the support rod 38. The support sleeve 37 is a structure for the matching connection of the sleeve and the extension plate. Specifically, an annular slot is provided inside the support sleeve 37, and an annular block is fixed on the outside of the support rod 38. The block can rotate in the slot, and when the slot moves, it can drive the block to move together. The support sleeve An injection molding push rod 28 is provided between the cylinder 37 and the injection molding frame 5. The injection molding push rod 28 is connected to an external controller and a driving power supply. The injection molding push rod 28 provides a driving force for injection molding. An injection molding screw 29 is welded to one end of the support rod 38. The injection molding screw 29 is a structure composed of a shaft with a gradually increasing diameter and a screw blade. A plurality of blocking and breaking frames 36 are fixedly installed on the surface of the injection molding screw 29. The blocking and breaking frames 36 are arc-shaped. The blocking and breaking frames 36 can block the feeding to a certain extent. A connecting rod 39 is fixedly installed on one end of the injection molding screw 29. A conical block 41 is fixedly installed on the surface of the connecting rod 39. An injection head 31 is fixedly installed on one end of the connecting rod 39. The injection molding frame 5 is opened inside. There is an inner cavity 35, and the conical block 41 can push the material to assist in injection molding. A sealing sleeve 40 is slidably installed inside the inner cavity 35. The sealing sleeve 40 is placed between the conical block 41 and the injection head 31. When the sealing sleeve 40 is attached to the conical block 41, the front injection space can be blocked to reduce the occurrence of insufficient thrust or material being squeezed out. The injection molding fixed frame 6 is fixedly installed between the injection molding support seat 1 and the injection molding storage box 2. A fixed seat 7 is fixedly installed on the inner side of the injection molding fixed frame 6, and a fixed air-conditioning component mold 9 is fixedly installed on one side of the fixed seat 7. The fixed air-conditioning component mold 9 can assist in the injection molding of the air-conditioning component. One end of the injection molding frame 5 is connected to a position on one side of the fixed air-conditioning component mold 9.

[0039] The connecting structure 44 includes an outer sleeve 441 fixedly mounted on the inner side of the slotted frame 17, and a gear 442 is provided on the inner side of the outer sleeve 441. The gear 442 is in the shape of a right-angled trapezoid. A rotating wheel 447 is rotatably connected to the inner side of the outer sleeve 441. A plurality of return springs 446 evenly distributed around the circumference are provided on the inner side of the rotating wheel 447. The return spring 446 can provide continuous elastic limit to the limit block 443, thereby ensuring the state of the limit block 443 during operation. One end of the return spring 446 is welded to the limit slider 445. The limit slider 445 is welded to the limit slider 445. A limit block 443 is fixedly installed on the side, one end of the limit block 443 is an inclined surface, and the rotating wheel 447 slides inside and is rotatably connected to a matching block 43 that can cooperate with the matching slot 42. A plurality of heaters 30 are installed inside the injection molding frame 5, and the heater 30 is electrically connected to the external controller and the driving power supply. The heater 30 can melt the raw materials of the air-conditioning components. There are four heaters 30, and a limit slot 444 is provided inside the rotating wheel 447. The limit slider 445 is slidably connected inside the limit slot 444.

[0040] In this embodiment, during the feeding process, the cooperating block 43 is stuck in the cooperating slot 42 as the initial state, and cooperates with the connecting structure 44. At this time, the slotted frame 17 rotates to drive the outer sleeve 441 to rotate, and the outer sleeve 441 drives the gear 442 to rotate. When the gear 442 rotates, the limit block 443 is compressed along the gear.

[0041] When the injection molding motor 27 is driven in the pushing direction, the matching slot 42 engages with the matching block 43, thereby driving the matching block 43 to rotate, and driving the injection molding screw 29 connected to it through the structure to rotate. The injection molding screw 29 can push the air-conditioning component raw materials toward the fixed air-conditioning component mold 9. At the same time, the rotating injection molding screw 29 will drive the blocking and breaking frame 36 connected to it to rotate. The blocking and breaking frame 36 can crush and mix the component raw materials. The blocking and breaking frame 36 blocks the material transmission to allow the component plastic to be fully melted.

[0042] When the injection push rod 28 is working, it pushes the support sleeve 37 forward, and the support sleeve 37 drives the support rod 38 to move forward. At this time, the matching block 43 stuck in the matching slot 42 is disengaged from the matching slot 42, so that the injection screw 29 stops rotating.

[0043] When injection is performed, the matching block 43 disengages from the matching slot 42, stops driving the injection screw 29, and when the injection screw 29 is pushed forward, the component raw material can also be injected from one side of the fixed air conditioning component mold 9 to realize the injection work. When the injection work is completed, the controller drives the injection motor 27 in the reverse direction, and drives the injection push rod 28 to drive the injection screw 29 away from the fixed air conditioning component mold 9, and drives the injection screw 29 to rotate the connecting structure 44 in the reverse direction. At this time, the slotted frame 17 rotates to drive the outer sleeve 441 to rotate, and the outer sleeve 441 drives the gear 442 to rotate. When the gear 442 rotates, the reverse gear pushes the limit block 443 , the limiting block 443 rotates to drive the matching block 43 to rotate, thereby driving the injection screw 29 to rotate until the matching block 43 is driven to fit into the matching slot 42, stopping the injection push rod 28 from working, and controlling the injection motor 27 to drive in the pushing direction to continue to assist in pushing the material, thereby achieving repeated injection molding. When pushing the injection molding work forward, in order to improve the injection molding efficiency and stability and avoid product defects, the injection molding screw 29 needs to remain stationary, otherwise the injection molding screw 29 needs to rotate to assist mixing. This design can prevent the injection molding screw 29 from rotating due to operational errors or machine failures during the injection molding process, affecting the quality of the air-conditioning component products.

[0044] As an embodiment, a barrel 4 is fixedly mounted on the injection molding shell 3 and the injection molding frame 5, and the bottom end of the barrel 4 is communicated with the inner cavity 35. A limiting sleeve 26 is fixedly mounted inside the barrel 4, and the limiting sleeve 26 provides a support structure for the mounting frame and sleeve combination installed on the inner wall of the barrel 4, which can provide a limiting support for the adjustment shaft 25. The limiting sleeve 26 is rotatably connected to the adjustment shaft 25, and a stirring frame 32 is fixedly mounted on the surface of the adjustment shaft 25. The stirring frame 32 can break up and mix the materials inside the barrel 4, and can dry and preheat the component raw materials in conjunction with additional heating equipment. A connecting sleeve 33 is fixedly mounted on the bottom end of the stirring frame 32, and a blanking sleeve 33 is fixedly mounted on the bottom end of the connecting sleeve 33. The auger 34 and the rotation of the unloading auger 34 can push the air-conditioning raw materials into the inner cavity 35 in an orderly and controllable manner, thereby improving the efficiency of the loading and injection molding work. The barrel 4 is funnel-shaped as a whole, and a closable protective cover is provided on the top of the barrel 4. The loading can be manual, mechanical, vacuum loading, etc. according to actual needs. A drive motor 22 is fixedly installed on one side of the barrel 4. The drive motor 22 is electrically connected to the external controller and the drive power supply through a wire. The drive motor 22 cooperates with the wheel 23 and the track 24 to realize the driving work of the adjustment shaft 25. A wheel 23 is provided on the top of the output shaft of the drive motor 22, and the surface of the wheel 23 is connected to the track 24 for transmission. The track 24 is set on the surface of the adjustment shaft 25 through another wheel 23.

[0045] In this embodiment, when loading is required, the air-conditioning component raw materials are first added to the barrel 4, and the drive motor 22 is controlled to work, and the wheel 23 and the crawler belt 24 are used to drive the adjustment shaft 25 to rotate. When the adjustment shaft 25 rotates in the direction of the auger blades of the unloading auger 34, the material can be transported to the inner cavity 35 while being broken up by the stirring frame 32. When driven in reverse, only the stirring and breaking work can be achieved, and the external heating equipment can assist in preheating and drying the broken up raw materials.

[0046] As an embodiment, a through hole 53 is opened inside the injection molding frame 5, and the through hole 53 is placed below the limiting sleeve 26 and the unloading auger 34 inside it. The through hole 53 can assist in unloading. A cleaning plate 54 is hinged on the inside of the through hole 53. The shape of the cleaning plate 54 can assist in scraping and cleaning the inner wall of the through hole 53 to reduce the situation where the material solidifies and blocks. The cross-sections of the through hole 53 and the cleaning plate 54 are both square. The side length of the through hole 53 is equal to the diameter of the outer diameter of the bottom tube of the barrel 4. The cleaning plate 5 4 The side length is greater than the side length of the through hole 53 and the cleaning plate 54 is made of a high temperature resistant material with a certain elasticity or the lower end of the cleaning plate 54 is a telescopic structure with a built-in spring, so that the cleaning plate 54 can contact and press against the corresponding side of the through hole 53 after rotating 90°. A connecting arm 55 is hinged on the cleaning plate 54, and a push plate 56 is hinged on the connecting arm 55. The push plate 56 is fixedly installed on one side of the support sleeve 37, and a connecting shaft cleaning brush 52 is fixedly installed on the surface of the unloading auger 34 near the bottom end.

[0047] In this embodiment, in the case of injection molding, since the injection molding push rod 28 pushes the support sleeve 37 forward, the push plate 56 passively follows the injection molding push rod 28 to move forward, and the push rod 56 pushes the connecting arm 55 to move, and cooperates with the hinge between the connecting arm 55 and the cleaning plate 54. At the same time, with the help of the hinge between the cleaning plate 54 itself and the through hole 53, the cleaning plate 54 is driven to flip. When the cleaning plate 54 flips, its two sides contact the two side surfaces of the through hole 53, and the length of the cleaning plate 54 itself is slightly longer than the through hole 53, so that the cleaning plate 53 can contact the other side of the through hole 53 as it rotates, and cleans the other side of the through hole 53 as it continues to rotate. 4 is high temperature resistant and elastic or has a telescopic structure at the lower end, so it can press against the other side of the through hole 53 to clean it until the through hole 53 is completely closed. At this time, as the injection push rod 28 stops, the cleaning plate 54 also stops. At this time, the cleaning plate 54 is just placed at the lower end of the connecting shaft cleaning brush 52. At the same time, the adjustment shaft 25 drives the motor to rotate in the reverse direction. The reverse rotating discharge auger 34 will drive the connecting shaft cleaning brush 52 to rotate. The rotating connecting shaft cleaning brush 52 can clean the surface of the cleaning plate 54, so that when the injection is pushed, the through hole 53 can be closed and the discharge port can be cleaned after melting and solidification.

[0048] As an embodiment, a material discharge trough 15 is provided inside the injection molding support seat 1, and a material discharge push rod 18 is fixedly installed on the injection molding support seat 1. The material discharge push rod 18 is electrically connected to the external controller and the driving power supply. A movable seat 11 is fixedly installed on one end of the output shaft of the material discharge push rod 18, and a dynamic air-conditioning component mold 10 is fixedly installed on one side of the movable seat 11. A space for cooling is provided inside the dynamic air-conditioning component mold 10, and material ports are provided on the upper and lower parts of the dynamic air-conditioning component mold 10. The cooling liquid can be injected from the bottom and pushed out from the top by connecting the material port and the circulating pump to realize liquid circulation cooling. The dynamic air-conditioning component mold 10 and the fixed air-conditioning component mold 9 match each other. A fixed plate 19 is fixedly installed on the top of the injection molding support seat 1, and a connecting cylinder frame 48 is fixedly installed on the inner side of the fixed plate 19. The connecting cylinder frame 48 can limit the support of the moving rod 49, and the connecting cylinder frame 48 slides inside. It is connected to a moving rod 49, one end of which is fixedly installed with a push rod 51 that is slidably connected to the moving seat 11 and the dynamic air-conditioning component mold 10. The push rod 51 can push the air-conditioning component to perform material unloading. A buffer spring 50 is arranged between the moving seat 11 and the moving rod 49. The setting of the buffer spring 50 can buffer and support the movement of the push rod 51, reducing the problem of large space occupation by fixed installation. The position of the fixed push rod 51 is inconvenient to adjust or even impossible to adjust, which will affect the actual disassembly and assembly of the dynamic air-conditioning component mold 10. The inner side of the unloading trough 15 is rotatably connected to the rotating shaft 46, and a buffer plate 47 is fixedly installed on one side of the rotating shaft 46. An inclined slide groove 45 is opened on the rotating shaft 46. The inclined slide groove 45 is a curved slide groove, and its opening angle is 90°. The interior of the inclined slide groove 45 is slidably connected to the adjustment frame 20, and the adjustment frame 20 is fixedly connected to the bottom of the moving seat 11.

[0049] In this embodiment, when unloading is required, the controller controls the unloading push rod 18 to drive in the direction away from the fixed air-conditioning component mold 9, driving the dynamic air-conditioning component mold 10 and the movable seat 11 to move in the direction away from the fixed air-conditioning component mold 9. The dynamic air-conditioning component mold 10 and the movable seat 11 will initially drive the push rod 51 to follow and move for a distance until the movable rod 49 follows and moves to the inner end of the connecting cylinder frame 48. The push rod 51 is blocked and cannot move. At this time, the dynamic air-conditioning component mold 10 continues to move, and the air-conditioning plastic component on the dynamic air-conditioning component mold 10 is ejected by the push rod 51. At the same time, it will drive the adjustment frame 20 fixedly installed with the movable seat 11 to move. When the adjustment frame 20 moves, it cooperates with the inclined slide groove 45 to drive the rotation The shaft 46 and the buffer plate 47 rotate in the horizontal direction. When the component is pushed out, the buffer plate 47 is in a horizontal state. At this time, the demolded component will first fall on the buffer plate 47. When injection molding is required again, the air-conditioning component mold 10 and the moving seat 11 are first driven toward the fixed air-conditioning component mold 9 by the unloading push rod 18 until the air-conditioning component mold 10 is driven to be completely in contact with the fixed air-conditioning component mold 9. At the same time, the moving seat 11 moves toward the fixed air-conditioning component mold 9, which will drive the adjustment frame 20 to follow the movement. The adjustment frame 20 cooperates with the inclined slide 45, and when driven, the rotating shaft 46 and the buffer plate 47 rotate in the vertical direction. At this time, the component detaches from the buffer plate 47 and falls into the unloading chute 15, thereby realizing the unloading work.

[0050] As an embodiment, a limiting rod 8 is welded to one side of the fixed plate 19, a connecting sleeve 21 is provided inside the movable seat 11, and the movable seat 11 is slidably connected to the limiting rod 8 through the connecting sleeve 21. A protective shell 12 is fixedly installed on the injection molded support seat 1, and a protective baffle 13 is slidably connected to the inside of the protective shell 12, and an observation window 16 is provided on the surface of the protective baffle 13.

[0051] It should be noted that during the above operation, the starting, stopping, moving and displacement processes are achieved by programming or the required corresponding sensors.

[0052] Working principle:

[0053] S1. First, add the raw materials of the air-conditioning components into the barrel 4, and then control the driving motor 22 to work, cooperate with the runner 23 and the crawler 24 to drive the adjustment shaft 25 to rotate, and the adjustment shaft 25 drives the limiting sleeve 26 and the unloading auger 34 to rotate. At this time, according to the state of the component raw materials (for example, when the dryness is not up to standard or the mixing degree is not enough, choose to rotate in the driving direction that cannot unload the material, otherwise directly choose to rotate in the driving direction that can unload the material), finally inject the component raw materials into the inner cavity 35 inside the injection molding frame 5.

[0054] S2. At the same time, the controller controls the material ejector 18 to work, driving the movable seat 11 and the dynamic air-conditioning component mold 10 to move forward. While the dynamic air-conditioning component mold 10 is installed in conjunction with the fixed air-conditioning component mold 9, the movable seat 11 drives the adjustment frame 20 to move. The adjustment frame 20 pushes the inclined chute 45, the rotating shaft 46 and the buffer plate 47, driving the buffer plate 47 to rotate in the vertical direction. Then, the injection motor 27 can be controlled to rotate in the pushing direction, driving the injection screw 29 to rotate accordingly, and continuously pushing the material toward the fixed seat 7. At the same time, the heater 30 is controlled to work to heat, melt and mix the component raw materials inside the inner cavity 35. During the pushing process, the moving materials are broken up and blocked to a certain extent with the help of the blocking and breaking frame 36, so as to improve the mixing efficiency of the materials and prolong the time for the materials to stay and heat. After the pushing is completed, the injection push rod 28 can be controlled to work, driving the support sleeve 37, the injection screw 29 and the injection head 31 to move toward the fixed air-conditioning component mold 9. During the movement, the matching block 43 disengages from the matching slot 42, and the matching connection structure 44 prevents the injection motor 27 from driving the injection screw 29 to rotate during the injection process. The conical block 41 contacts the blocking sleeve 40, closes the pushing space, and injects the material into the fixed air-conditioning component mold 9 for injection molding.

[0055] S3. After the injection molding is completed, the injection molding motor 27 can be controlled to rotate in the opposite direction mentioned above, driving the injection molding screw 29 to rotate in the opposite direction. At the same time, the injection molding push rod 28 works in the opposite direction to drive the injection molding screw 29 to move in the direction of the injection molding shell 3. The matching block 43 is controlled to be inserted into the matching slot 42. At this time, the position of the injection head 31 is restored to prepare for the next injection molding. When the injection molding is completed for a period of time and the mold needs to be demoulded, the unloading push rod 18 drives the moving seat 11 and the dynamic air-conditioning component mold 10 to be driven away from the fixed air-conditioning component mold 9. At this time, the dynamic air-conditioning component mold 10 is away from the fixed air-conditioning component mold 9, and the push rod 51 is following As the movable seat 11 moves a certain distance and then is fixed, the dynamic air-conditioning component mold 10 and the movable seat 11 continue to move, and the push rod 51 is misaligned with the dynamic air-conditioning component mold 10 to push the component out. When the movable seat 11 moves in the direction away from the fixed air-conditioning component mold 9, the adjustment frame 20 cooperates with the inclined slide groove 45 to drive the rotating shaft 46 and the buffer plate 47 in the horizontal direction. When the component is detached, it will fall on the horizontal buffer plate 47 until the next injection molding work (proposed in S2 that during injection molding, the buffer plate 47 will be adjusted to a vertical state to realize the unloading work). Continue the above operation to repeatedly perform injection molding work on the component.

[0056] The present invention has the following technical effects.

[0057] 1. When the injection molding motor of the present invention is driven in the pushing direction, the injection molding screw connected to it through the structure is driven to rotate accordingly. The injection molding screw can push the air-conditioning component raw materials toward the fixed air-conditioning component mold. At the same time, the rotating injection molding screw will drive the blocking and breaking frame connected to it to rotate. The rotating blocking and breaking frame breaks and mixes the component raw materials to ensure the quality of subsequent injection molding raw materials. The blocking and breaking frame also blocks the material transmission to increase the residence time of the component raw materials. With the help of the heater, the raw materials are fully melted to ensure the state of the raw materials. The injection molding push rod works The operation can drive the injection screw, the conical block and the injection head to move. First, the conical block contacts the sealing sleeve to seal the injection space, and then the raw material is pushed out to realize injection molding. When the injection screw is pushed out, the matching block disengages from the matching slot, and the connection structure does not limit the rotation of the matching block. Therefore, the injection screw will not rotate during the injection molding process, which greatly reduces the situation where the injection screw rotates when pushed into the injection molding due to improper operation or malfunction during the injection molding process, reduces the impact of the injection molding process, and reduces the occurrence of defects in air-conditioning plastic component products.

[0058] 2. The present invention drives the adjustment shaft to rotate by driving the motor, cooperating with the runner and the crawler. The rotation of the adjustment shaft in different directions can achieve the purpose of only mixing and crushing without being able to discharge the material or continuous discharge of the material during the mixing and crushing process. At this time, it can be selected according to the state of the component raw materials, which greatly improves the actual efficiency of the subsequent injection molding work. At the same time, the rotation of the adjustment shaft can drive the connecting shaft cleaning brush to rotate with it, and can clean the material attached to the surface of the cleaning plate that is turned into a horizontal shape. When the push plate is pushed to move, the cleaning plate is driven to rotate by means of the transmission of the connecting arm and the hinged connection between the cleaning plate itself and the through hole, which can scrape and clean the inner wall of the through hole and seal the bottom port of the barrel to reduce the blockage caused by the high temperature of the discharge port during injection molding and the difficulty in discharge.

[0059] 3. The present invention drives the dynamic air-conditioning component mold and the movable seat to move by the operation of the unloading push rod. When the dynamic air-conditioning component mold moves in the direction close to the fixed air-conditioning component mold, the connection and cooperation between the dynamic air-conditioning component mold and the fixed air-conditioning component mold can be realized, and at the same time, the adjustment frame fixedly installed with the movable seat can be driven to move, and the inclined slide groove can be cooperated to drive the rotating shaft and the buffer plate to rotate in the vertical direction. When the unloading push rod works to drive the dynamic air-conditioning component mold away from the fixed air-conditioning component mold, the dynamic air-conditioning component mold pushes the component out of the dynamic air-conditioning component mold with the help of the push rod during the movement. At the same time, during the movement, the buffer plate is driven to rotate in the horizontal direction (through the above principle), and the demoulded component will fall onto the buffer plate in a horizontal state. When the fixed air-conditioning component mold is connected to the dynamic air-conditioning component mold, the buffer plate unloads vertically, otherwise the buffer plate receives the material horizontally, thereby realizing the purpose of automatic buffering and unloading of materials.

[0060] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. Various modifications and substitutions of the present invention will be readily apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. An air conditioner plastic component injection molding machine, comprising an injection molding support seat (1), an injection molding storage box (2), an injection molding shell (3) and an injection molding fixing frame (6), characterized in that: The injection molding housing (3) is fixedly mounted on the top of the injection molding storage box (2), the injection molding motor (27) is fixedly mounted on the inner side of the injection molding housing (3), the injection molding frame (5) is fixedly mounted inside the injection molding housing (3), a slotted frame (17) is fixedly mounted on one end of the output shaft of the injection molding motor (27), a matching card slot (42) with internal teeth is provided at the inner end of the slotted frame (17), a connecting structure (44) is provided inside the slotted frame (17), a matching card block (43) with external teeth is slidably connected inside the connecting structure (44), a support rod (38) is welded to one end of the matching card block (43), a support sleeve (37) is rotatably connected to the surface of the support rod (38), an injection molding push rod (28) is provided between the support sleeve (37) and the injection molding frame (5), and the support rod (38) is provided. An injection molding screw (29) is welded to the end, and a plurality of blocking and breaking frames (36) are fixedly installed on the surface of the injection molding screw (29), a connecting rod (39) is fixedly installed on one end of the injection molding screw (29), a conical block (41) is fixedly installed on the surface of the connecting rod (39), and an injection molding head (31) is fixedly installed on one end of the connecting rod (39), an inner cavity (35) is opened inside the injection molding frame (5), and a blocking sleeve (40) is slidably installed inside the inner cavity (35), an injection molding fixed frame (6) is fixedly installed between the injection molding support seat (1) and the injection molding storage box (2), a fixed seat (7) is fixedly installed on the inner side of the injection molding fixed frame (6), and a fixed air conditioning component mold (9) is fixedly installed on one side of the fixed seat (7), and one end of the injection molding frame (5) is connected to a position on one side of the fixed air conditioning component mold (9); The connecting structure (44) includes an outer sleeve (441) fixedly mounted on the inner side of the slotted frame (17), a gear tooth (442) is provided on the inner side of the outer sleeve (441), and the gear tooth (442) is in the shape of a right-angled trapezoid. A rotating wheel (447) is rotatably connected to the inner side of the outer sleeve (441), and a return spring (446) is provided on the inner side of the rotating wheel (447). One end of the return spring (446) is welded to a limiting slider (445), and a limiting block (443) is fixedly mounted on one side of the limiting slider (445). One end of the limiting block (443) is an inclined surface. The rotating wheel ( The inner sliding connection of the rotating wheel (447) is provided with a matching block (43) that can cooperate with the matching slot (42), and a plurality of heaters (30) are installed inside the injection molding frame (5). A limiting slide groove (444) is provided inside the rotating wheel (447), and the limiting slider (445) is slidably connected inside the limiting slide groove (444). When the injection molding push rod (28) works, it pushes the supporting sleeve (37) forward, and the supporting sleeve (37) drives the supporting rod (38) to move forward. At this time, the matching block (43) stuck in the matching slot (42) is disengaged from the matching slot. The engaging slot (42) is engaged, thereby realizing that the injection screw (29) stops rotating. When injection is performed, the engaging block (43) is disengaged from the engaging slot (42), stopping the rotation drive of the injection screw (29), and when the injection screw (29) is pushed forward, the component raw material can also be injected from one side of the fixed air conditioning component mold (9) to realize the injection work. When the injection work is completed, the injection motor (27) is driven in the reverse direction, and the injection push rod (28) is driven to drive the injection screw (29) away from the fixed air conditioning component mold (9), driving the injection screw (29) to rotate in the reverse direction. Connecting structure (44), at this time, the slotting frame (17) rotates to drive the outer sleeve (441) to rotate, the outer sleeve (441) drives the gear (442) to rotate, and when the gear (442) rotates, the reverse gear pushes the limit block (443), and the limit block (443) rotates to drive the matching block (43) to rotate, thereby driving the injection screw (29) to rotate until the matching block (43) is driven to fit into the matching slot (42), stopping the injection push rod (28) from working, and controlling the injection motor (27) to drive in the pushing direction to continue to assist in pushing the material, thereby achieving repeated injection molding work; A barrel (4) is fixedly mounted on the injection molding shell (3) and the injection molding frame (5); the bottom end of the barrel (4) and the inner cavity (35) are communicated with each other; a limiting sleeve (26) is fixedly mounted inside the barrel (4); an adjusting shaft (25) is rotatably connected inside the limiting sleeve (26); a stirring frame (32) is fixedly mounted on the surface of the adjusting shaft (25); a connecting sleeve (33) is fixedly mounted on the bottom end of the stirring frame (32); and a feeding auger (34) is fixedly mounted on the bottom end of the connecting sleeve (33); A through hole (53) is provided inside the injection molding frame (5), and a cleaning plate (54) is hingedly connected to the inner side of the through hole (53). The cross-sections of the through hole (53) and the cleaning plate (54) are both square. The side length of the through hole (53) is equal to the diameter of the outer diameter of the bottom tube of the barrel (4), and the side length of the cleaning plate (54) is greater than the side length of the through hole (53). A connecting arm (55) is hingedly connected to the cleaning plate (54), and a push plate (56) is hingedly connected to the connecting arm (55). The push plate (56) is fixedly installed on one side of the support sleeve (37). A connecting shaft cleaning brush (52) is fixedly installed near the bottom end of the surface of the unloading auger (34).

2. The air conditioner plastic component injection molding machine according to claim 1, characterized in that: The barrel (4) is funnel-shaped as a whole, and a closable protective cover is provided on the top of the barrel (4).

3. The air conditioner plastic component injection molding machine according to claim 1, characterized in that: A driving motor (22) is fixedly mounted on one side of the barrel (4), a rotating wheel (23) is provided at the top end of the output shaft of the driving motor (22), a crawler (24) is connected to the surface of the rotating wheel (23), and the crawler (24) is provided on the surface of the adjustment shaft (25) through another rotating wheel (23).

4. The air conditioner plastic component injection molding machine according to claim 1, characterized in that: The injection molding support seat (1) is provided with a discharge trough (15) inside, and a discharge push rod (18) is fixedly installed on the injection molding support seat (1), and a movable seat (11) is fixedly installed on one end of the output shaft of the discharge push rod (18), and a dynamic air-conditioning component mold (10) is fixedly installed on one side of the movable seat (11), and the dynamic air-conditioning component mold (10) and the fixed air-conditioning component mold (9) match each other. A fixed plate (19) is fixedly installed on the top of the injection molding support seat (1), and a connecting cylinder frame (48) is fixedly installed on the inner side of the fixed plate (19), and a moving rod (49) is slidably connected inside the connecting cylinder frame (48), and a discharge push rod (51) is fixedly installed on one end of the moving rod (49) and is slidably connected inside the moving seat (11) and the dynamic air-conditioning component mold (10), and a buffer spring (50) is provided between the moving seat (11) and the moving rod (49).

5. The air conditioner plastic component injection molding machine according to claim 4, characterized in that: The inside of the material discharge chute (15) is rotatably connected to a rotating shaft (46), a buffer plate (47) is fixedly installed on one side of the rotating shaft (46), an inclined slide groove (45) is provided on the rotating shaft (46), an adjustment frame (20) is slidably connected inside the inclined slide groove (45), and the adjustment frame (20) is fixedly connected to the bottom of the movable seat (11).

6. The air conditioner plastic component injection molding machine according to claim 4, characterized in that: A limiting rod (8) is welded to one side of the fixed plate (19), a connecting sleeve (21) is provided inside the movable seat (11), and the movable seat (11) is slidably connected to the limiting rod (8) via the connecting sleeve (21).

7. The air conditioner plastic component injection molding machine according to claim 1, characterized in that: A protective shell (12) is fixedly mounted on the injection molding support seat (1), a protective baffle (13) is slidably connected inside the protective shell (12), and an observation window (16) is provided on the surface of the protective baffle (13).

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