Efficient injection molding device and method for air conditioner shell production

Abstract

The invention relates to the technical field of injection molding devices, and discloses an efficient injection molding device and method for air conditioner shell production, the device comprises a machine body and an injection molding box fixedly installed at the top of the machine body, a supporting shaft is rotatably installed between the front face and the back face of the inner wall of the injection molding box, and a cross is fixedly installed on the outer surface of the supporting shaft; four groups of opening and closing mechanisms are fixedly connected to the cross, and a forming mold I and a forming mold II are arranged on the opening and closing mechanisms. Through the arrangement of the four sets of forming molds, when one set of forming molds conduct injection molding, one set of forming molds synchronously conduct cooling forming on the air conditioner shell subjected to injection molding, and the other set of forming molds synchronously conduct discharging operation on the air conditioner shell subjected to cooling forming; therefore, injection molding of the air conditioner shell, cooling molding after injection molding and blanking operation of injection molding are ensured not to interfere with one another, and the window period of injection molding demolding cooling time is saved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, in particular to a high-efficiency injection molding device and method for producing air conditioner shells. Background Art

[0002] In the process of air-conditioning production, in order to improve production intelligence and efficiency, injection molding devices are now mostly used to produce the shell. The injection molding device is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting materials.

[0003] For example, the Chinese patent with application number: 202021548793.8 discloses an injection molding device for manufacturing air conditioner shells, including a body, a conveying device is installed on the bottom surface of the body, a pump is installed on the left side of the front of the body, a connecting pipe extending outward is sleeved on the pump, a water tank is connected to the side of the body, and one end of the connecting pipe extends to the inner cavity of the water tank, and an elastic tube extending outward is sleeved in the connecting pipe. By adopting the design of a conveying device and co-using a water collecting tank and a pump, during the use of the device, the pump can continuously water-cool the mold, the water collecting tank can collect moisture on the surface of the hopper, and the molded workpiece can be automatically discharged by using the conveying device. On the basis of not affecting the injection molding of the device, the efficiency and quality of the injection molding of the device are greatly improved, which is a reflection of the practicality and feasibility of the device.

[0004] The injection molding device for manufacturing the air conditioner shell needs to demould the previous air conditioner shell before the next air conditioner shell can be injected each time. The injection molding gap in the middle greatly affects the continuity and efficiency of the air conditioner shell injection molding.

[0005] Therefore, it is necessary to provide an efficient injection molding device and method for producing air conditioner shells to solve the above technical problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a high-efficiency injection molding device and method for producing air conditioner shells, which effectively solves the problems in the background technology.

[0007] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a high-efficiency injection molding device for producing air-conditioning shells, comprising a body and an injection molding box fixedly installed on the top of the body, a support shaft is rotatably installed between the front and back sides of the inner wall of the injection molding box, a cross is fixedly installed on the outer surface of the support shaft, four groups of opening and closing mechanisms are fixedly connected to the cross, a molding mold 1 and a molding mold 2 are arranged on the opening and closing mechanism, a molding mold 1 and a molding mold 2 together constitute a complete group of molding molds, an arc-shaped outer rack and an arc-shaped inner rack are fixedly installed on the front and back sides of the inner wall of the injection molding box and at the positions corresponding to the opening and closing mechanism, the opening and closing mechanism is used in conjunction with the arc-shaped outer rack to separate and open the molding mold 1 and the molding mold 2, and the opening and closing mechanism is used in conjunction with the arc-shaped inner rack to close the molding mold 1 and the molding mold 2;

[0008] The front and back sides of the injection molding box are provided with slide grooves, a retreat mechanism is installed between the two slide grooves, an injection molding machine is arranged on the retreat mechanism, and a driving mechanism is also arranged on the back side of the injection molding box;

[0009] The driving mechanism is used to drive the retreat mechanism to operate, so that after the injection molding machine retreats, the cross is driven to rotate 90 degrees, and after the four groups of molding molds are driven to exchange positions, the injection molding machine is driven to reset through the retreat mechanism to perform the injection molding operation of the air conditioner shell.

[0010] Preferably, the driving mechanism includes a driving motor, a rotating shaft 1, a connecting rod and a fixed block, the output end of the driving motor is fixedly connected with a residual gear and a cam, the end of the connecting rod close to the cam is rotatably connected with an abutment wheel, the abutment wheel contacts the cam, the two ends of the rotating shaft 1 are respectively fixedly sleeved with a full gear and an active bevel gear, the outer surface of the active bevel gear is meshed with a driven bevel gear, the top of the driven bevel gear is fixedly connected with a rotating shaft 2, the outer surface of the rotating shaft 2 is fixedly sleeved with a worm, the outer surface of the worm is meshed with a worm wheel, the worm wheel fixed sleeve is arranged on the outer surface of the supporting shaft, the fixed block is fixedly installed on the front side of the inner wall of the injection molding box, the driving motor is fixedly installed on the back side of the injection molding box, and the rotating shaft 1 is rotatably penetrated and installed on the back side of the injection molding box.

[0011] Preferably, the retreat mechanism comprises two sliders, a U-shaped frame is fixedly connected between the two sliders, and a return spring 1 is fixedly connected between the two sliders and the slide slot, and the injection molding machine is fixedly mounted on the U-shaped frame;

[0012] Through the coordinated use of the driving mechanism and the retreat mechanism, before each driving mechanism operates to drive the cross and the four groups of molding molds to rotate 90°, the retreat mechanism is first moved to the right and drives the injection molding machine to move to the right, making room for the subsequent rotation of the molding mold, so that the molding mold can smoothly complete the 90° rotation, and after the molding mold rotates 90°, the elastic force of the reset spring 1 in the retreat mechanism can push the injection molding machine to move left and reset, so as to facilitate the injection molding operation of the next group of molding molds, thereby optimizing the continuity and efficiency of the injection molding device for the injection molding of the air conditioner shell.

[0013] Preferably, the opening and closing mechanism comprises a fixing frame fixedly mounted on a cross, a bidirectional screw is rotatably installed on the fixing frame, two threaded blocks are threadedly connected to the outer surface of the bidirectional screw, and both ends of the bidirectional screw are fixedly connected to a driving gear, a guide rod is also fixedly penetrated on the fixing frame, two guide rings are movably sleeved on the outer surface of the guide rod, the two threaded blocks are respectively fixedly connected to the forming mold 1 and the forming mold 2, and the two guide rings are also respectively fixedly connected to the forming mold 1 and the forming mold 2;

[0014] By using the opening and closing component in conjunction with the arc-shaped outer rack, the molding mold one and the molding mold two can be automatically separated and opened when the molding mold passes through the arc-shaped outer rack, so as to carry out the unloading operation of the air conditioner shell after injection molding in the molding mold, and by using the opening and closing component in conjunction with the arc-shaped inner rack, the molding mold one and the molding mold two can be automatically closed when the molding mold passes through the arc-shaped inner rack after unloading, so as to carry out the next injection molding operation of the molding mold.

[0015] Preferably, both ends of the guide rod are fixedly connected with a trigger frame, and the first molding die and the second molding die are both provided with a demoulding mechanism;

[0016] By setting the trigger frame and the demoulding mechanism, when the molding mold 1 and the molding mold 2 are separated and opened, the demoulding mechanism can be used to eject the air conditioner shell in the molding mold, thereby realizing the automatic demoulding operation of the air conditioner shell.

[0017] Preferably, the demoulding mechanism includes a push rod movably installed through the molding mold, one end of the push rod located inside the molding mold is fixedly connected to the demoulding plate, the other end of the push rod is fixedly connected to the trigger block, and a reset spring 2 is fixedly connected between the trigger block and the molding mold.

[0018] Preferably, the molding mold 1 and the molding mold 2 have a molding cavity on one side opposite to the other, and the molding mold 1 and the molding mold 2 have an injection port on one side, and the injection port is communicated with the molding cavity.

[0019] Preferably, a feed roller frame is rotatably installed between the front and back sides of the inner wall of the injection molding box and on the side away from the injection molding machine via a rotating shaft, and a return torsion spring is fixedly connected between the feed roller frame and the injection molding box. The feed roller frame is used to receive the air-conditioning casing after demoulding and transport it to the outside of the injection molding box.

[0020] Preferably, a control panel is fixedly connected to the front of the injection molding box, and an observation window is provided on the side of the front of the injection molding box close to the injection molding machine. The setting of the observation window makes it convenient for staff to observe the operation of the equipment in the injection molding box. The control panel is electrically connected to the drive motor and the injection molding machine to control the start and stop of the drive motor and the injection molding machine.

[0021] The present invention also provides a method for using a high-efficiency injection molding device for producing an air conditioner shell, comprising the following steps:

[0022] S1: The molten plastic is injected into the molding cavities of the molding molds 1 and 2 which are in contact with each other by the injection molding machine. After the injection molding is completed, the driving mechanism is started through the control panel. The driving mechanism uses the cam to push the abutting wheel and the connecting frame to move to the side away from the cam, thereby driving the U-shaped frame and the injection molding machine to move to the side away from the molding mold, making room for the subsequent rotation and exchange of the molding mold. During this process, the residual gear and the full gear are in a non-meshing state;

[0023] S2: The driving mechanism continues to operate until the residual gear is driven to mesh with the full gear, and then the full gear is driven to rotate, and then the supporting shaft and the cross are driven to rotate 90° through the coordinated use of the rotating shaft 1, the active bevel gear, the driven bevel gear, the worm gear and the worm gear, and then the residual gear is released from the meshing relationship with the full gear, and at this time, the cam releases the abutment against the abutment wheel, and the elastic force of the return spring 1 pushes the injection molding machine to move to the side close to the molding mold until the injection molding machine is connected with the injection molding port on the molding mold of the next group of air-conditioning shells to be injected, and then the driving mechanism is closed, and then the injection molding machine is started again to inject the molding mold of the next group of air-conditioning shells to be injected;

[0024] S3: During the 90° rotation of the cross in step 2, the four sets of opening and closing mechanisms and the molding molds installed on the opening and closing mechanisms will be driven to rotate synchronously. The molding mold injected with the molten plastic will rotate 90° and stop near the top of the injection molding box for static cooling. When the driving mechanism is operated next time and the molding mold is driven to rotate 90°, the molding mold can pass through the arc-shaped outer rack, and the arc-shaped outer rack and the opening and closing mechanism are used together to separate and open the molding mold 1 and the molding mold 2, and rotate to the position near the left side of the injection molding box for unloading. When the molding mold 1 and the molding mold 2 are separated and opened, the demoulding mechanism is driven to move synchronously. When the demoulding mechanism abuts against the trigger plate, the demoulding mechanism can be triggered to eject the air-conditioning shell after injection molding in the molding mold. In the next two driving mechanism operations (each time the driving mechanism operates, the molding mold rotates 90°), the molding mold can be driven to pass through the arc-shaped internal rack and cooperate with the opening and closing mechanism to close the molding mold 1 and the molding mold 2 to wait for the next injection molding operation, and rotate to the right side inside the injection molding box, that is, to the position opposite to the injection molding machine to perform the injection molding operation of the air-conditioning shell.

[0025] The present invention has the following beneficial effects:

[0026] 1. The present invention arranges four groups of molding molds. When one group of molding molds is performing injection molding, one group of molding molds is performing cooling molding of the air-conditioning shell after injection molding simultaneously, and another group of molding molds is performing unloading operation of the air-conditioning shell after cooling molding simultaneously, thereby ensuring that the injection molding of the air-conditioning shell, the cooling molding after injection molding, and the unloading operation of injection molding do not interfere with each other, saving the window period of the injection demolding cooling time, and greatly improving the continuity and efficiency of the injection molding production of the air-conditioning shell.

[0027] 2. The present invention, through the coordinated use of the opening and closing component and the arc-shaped outer rack, can automatically separate and open the molding mold 1 and the molding mold 2 when the molding mold passes through the arc-shaped outer rack, so as to carry out the unloading operation of the air-conditioning shell after injection molding in the molding mold, and through the coordinated use of the opening and closing component and the arc-shaped inner rack, can automatically close the molding mold 1 and the molding mold 2 when the molding mold passes through the arc-shaped inner rack after unloading, so that the molding mold can carry out the next injection molding operation.

[0028] 3. The present invention, through the arrangement of the trigger frame and the demoulding mechanism, can use the demoulding plate to eject the air conditioner casing in the molding mold when the molding mold 1 and the molding mold 2 are separated and opened, thereby realizing the automatic demoulding operation of the air conditioner casing.

[0029] 4. The present invention uses a driving mechanism and a retreat mechanism in coordination. Before each driving mechanism operates to drive the cross and the four groups of molding molds to rotate 90°, the retreat mechanism is first moved to the right and drives the injection molding machine to move to the right, making room for the subsequent rotation of the molding mold so that the molding mold can smoothly complete the 90° rotation. After the molding mold rotates 90°, the elastic force of the reset spring 1 in the retreat mechanism can push the injection molding machine to move to the left and reset, so as to facilitate the injection molding operation of the next group of molding molds, thereby optimizing the continuity and efficiency of the injection molding device for the injection molding of the air conditioner casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of the overall structure of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0031] Figure 2 This is a rear view of the overall structure of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0032] Figure 3 This is a side view of the overall structure of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of an arc-shaped inner rack and a slide groove, etc. of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0034] Figure 5 This is a schematic diagram of the supporting shaft and cross structures of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of a residual gear and a complete gear, etc. of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of an arc-shaped external rack and a driving gear, etc. of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0037] Figure 8 A schematic diagram of a driving mechanism of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0038] Fig. 9 This is a schematic diagram of the structure of a driving motor and a worm gear, etc. of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0039] Fig.10 A schematic diagram of the closed state of a molding die 1 and a molding die 2 of a high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0040] Fig.11 This is a schematic diagram of the separation state of the molding die 1 and the molding die 2 of the high-efficiency injection molding device and method for producing an air conditioner shell proposed by the present invention;

[0041] Fig.12 The present invention provides a cross-sectional view of a molding die 1 and a molding die 2 of a high-efficiency injection molding device and method for producing an air conditioner shell.

[0042] In the figure:

[0043] 1. Machine body; 2. Injection molding box; 3. Support shaft; 4. Cross;

[0044] 5. Driving mechanism; 501. Driving motor; 502. Rotating shaft 1; 503. Connecting rod; 504. Fixing block; 505. Residual gear; 506. Cam; 507. Abutting wheel; 508. Full gear; 509. Active bevel gear; 5010. Driven bevel gear; 5011. Rotating shaft 2; 5012. Worm; 5013. Worm wheel;

[0045] 6. Forming mold 1; 7. Forming mold 2; 8. Arc-shaped outer rack; 9. Arc-shaped inner rack; 10. Slide;

[0046] 11. retreat mechanism; 1101. slider; 1102. U-shaped frame; 1103. return spring 1;

[0047] 12. Injection molding machine;

[0048] 13. opening and closing mechanism; 1301. fixing frame; 1302. bidirectional screw rod; 1303. threaded block; 1304. guide rod; 1305. guide ring; 1306. driving gear;

[0049] 14. Trigger rack;

[0050] 15. demoulding mechanism; 1501. ejector rod; 1502. demoulding plate; 1503. trigger block; 1504. reset spring 2;

[0051] 16. Unloading roller frame; 17. Control panel; 18. Observation window; 19. Injection port. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] As attached Figure 1 To Attachment Fig.12 As shown:

[0054] Embodiment 1: The present invention provides a high-efficiency injection molding device for producing air conditioner shells, comprising a body 1 and an injection molding box 2 fixedly mounted on the top of the body 1, a support shaft 3 is rotatably mounted between the front and back sides of the inner wall of the injection molding box 2, a cross 4 is fixedly mounted on the outer surface of the support shaft 3, four sets of opening and closing mechanisms 13 are fixedly connected to the cross 4, and a molding mold 1 6 and a molding mold 2 7 are arranged on the opening and closing mechanism 13, a molding mold 1 6 and a molding mold 2 7 together constitute a complete set of molding molds, and the molding mold 1 6 and the molding mold 2 7 together constitute a complete set of molding molds. A molding cavity is provided on one side opposite to the second molding die 7, and an injection port 19 is provided on one side of the molding die 1 6 and the molding die 2 7, and the injection port 19 is communicated with the molding cavity. An arc-shaped outer rack 8 and an arc-shaped inner rack 9 are fixedly installed on the front and back sides of the inner wall of the injection molding box 2 and at the position corresponding to the opening and closing mechanism 13. The opening and closing mechanism 13 cooperates with the arc-shaped outer rack 8 to separate and open the molding die 1 6 and the molding die 2 7, and the opening and closing mechanism 13 cooperates with the arc-shaped inner rack 9 to close and close the molding die 1 6 and the molding die 2 7;

[0055] The front and back of the injection molding box 2 are provided with a chute 10, a retreat mechanism 11 is installed between the two chute 10, and an injection molding machine 12 is arranged on the retreat mechanism 11. The injection molding machine 12 adopts the existing mature technology, and its specific structure and principle are not elaborated in detail here. A driving mechanism 5 is also arranged on the back of the injection molding box 2, and a control panel 17 is fixedly connected to the front of the injection molding box 2, and an observation window 18 is arranged on the side of the front of the injection molding box 2 close to the injection molding machine 12;

[0056] The driving mechanism 5 is used to drive the retreat mechanism 11 to operate, so that the injection molding machine 12 retreats, and then drives the cross 4 to rotate 90°, drives the four groups of molding molds to exchange positions, and then drives the injection molding machine 12 to reset through the retreat mechanism 11 to perform the injection molding operation of the air conditioner shell;

[0057] By setting up four groups of molding molds, when one group of molding molds is performing injection molding, one group of molding molds is simultaneously performing cooling molding of the air-conditioning shell after injection molding, and another group of molding molds is simultaneously performing unloading operation of the air-conditioning shell after cooling molding, thereby ensuring that the injection molding of the air-conditioning shell, the cooling molding after injection molding, and the unloading operation of injection molding do not interfere with each other, saving the window period of injection demolding cooling time, and greatly improving the continuity and efficiency of the injection molding production of the air-conditioning shell.

[0058] The driving mechanism 5 includes a driving motor 501, a rotating shaft 502, a connecting rod 503 and a fixing block 504. The output end of the driving motor 501 is fixedly connected with a residual gear 505 and a cam 506. The end of the connecting rod 503 close to the cam 506 is rotatably connected with an abutment wheel 507, and the abutment wheel 507 contacts the cam 506. The two ends of the rotating shaft 502 are respectively fixedly sleeved with a full gear 508 and an active bevel gear 509. The outer surface of the active bevel gear 509 is meshed with a driven gear. Bevel gear 5010, the top of the driven bevel gear 5010 is fixedly connected with a rotating shaft 2 5011, the outer surface of the rotating shaft 2 5011 is fixedly sleeved with a worm 5012, the outer surface of the worm 5012 is meshed with a worm wheel 5013, the worm wheel 5013 is fixedly sleeved on the outer surface of the support shaft 3, the fixed block 504 is fixedly installed on the front side of the inner wall of the injection molding box 2, the driving motor 501 is fixedly installed on the back side of the injection molding box 2, and the rotating shaft 1 502 is rotatably penetrated and installed on the back side of the injection molding box 2.

[0059] The retreat mechanism 11 includes two sliders 1101 , a U-shaped frame 1102 is fixedly connected between the two sliders 1101 , and a return spring 1103 is fixedly connected between the two sliders 1101 and the slide slot 10 , and the injection molding machine 12 is fixedly mounted on the U-shaped frame 1102 .

[0060] The opening and closing mechanism 13 includes a fixing frame 1301 fixedly mounted on the cross 4, a bidirectional screw rod 1302 is rotatably installed on the fixing frame 1301, the outer surface of the bidirectional screw rod 1302 is threadedly connected to two threaded blocks 1303, and both ends of the bidirectional screw rod 1302 are fixedly connected to a driving gear 1306, a guide rod 1304 is also fixedly penetrated on the fixing frame 1301, and the outer surface of the guide rod 1304 is movably sleeved with two guide rings 1305, the two threaded blocks 1303 are respectively fixedly connected to the forming mold 1 6 and the forming mold 2 7, and the two guide rings 13 05 is also fixedly connected to the molding die 1 6 and the molding die 2 7 respectively. Through the coordinated use of the opening and closing component and the arcuate outer rack 8, the molding die 1 6 and the molding die 2 7 can be automatically separated and opened in the process of the molding die passing through the arcuate outer rack 8, so as to carry out the unloading operation of the air-conditioning shell after injection molding in the molding die. And through the coordinated use of the opening and closing component and the arcuate inner rack 9, the molding die 1 6 and the molding die 2 7 can be automatically closed in the process of the molding die passing through the arcuate inner rack 9 after unloading, so that the molding die can carry out the next injection molding operation.

[0061] Both ends of the guide rod 1304 are fixedly connected with a trigger frame 14, and the interior of the molding mold 1 6 and the molding mold 2 7 are provided with a demoulding mechanism 15. Through the arrangement of the trigger frame 14 and the demoulding mechanism 15, when the molding mold 1 6 and the molding mold 2 7 are separated and opened, the demoulding mechanism 15 can be used to eject the air-conditioning shell in the molding mold, thereby realizing the automatic demoulding operation of the air-conditioning shell.

[0062] A feed roller frame 16 is rotatably installed between the front and back sides of the inner wall of the injection molding box 2 and on the side away from the injection molding machine 12 through a rotating shaft. A reset torsion spring (not shown in the figure) is fixedly connected between the feed roller frame 16 and the injection molding box 2. When the molding mold rotates, when the molding mold abuts against the feed roller frame 16, the feed roller frame 16 is driven to rotate to avoid it. After the molding mold passes the position of the feed roller frame 16, the feed roller frame 16 is reset by the elastic force of the reset torsion spring to facilitate the subsequent transportation of the air-conditioning casing.

[0063] The present invention also provides a method for using a high-efficiency injection molding device for producing an air conditioner shell, comprising the following steps:

[0064] S1: First start the injection molding machine 12 and inject the molten plastic into the molding cavities in the molding mold 1 6 and the molding mold 2 7 abutting therewith through the injection port 19. After the injection molding is completed, start the driving mechanism 5 through the control panel 17. The output end of the driving motor 501 rotates to drive the residual gear 505 and the cam 506 to rotate synchronously. When the cam 506 rotates, it pushes the abutting wheel 507 to move rightward, drives the slider 1101 to move rightward and squeezes the return spring 1103 to make it in a compressed state and store energy. When sliding to the right, the injection molding machine 12 is pushed to retreat a certain distance to the right through the connecting frame and the U-shaped frame 1102 to make room for the subsequent rotation and replacement of the molding mold. In this process, the residual gear 505 is in a non-meshing state with the full gear 508, that is, the full gear 508 is in a stationary state, and through the automatic characteristics of the worm wheel 5013 and the worm 5012, the support shaft 3, the cross 4, the opening and closing mechanism 13 and the molding mold can be kept stable to avoid shaking;

[0065] S2: The driving mechanism 5 continues to operate until the residual gear 505 is driven to mesh with the full gear 508, and then the full gear 508 is driven to rotate, and then the kinetic energy is transmitted to the active bevel gear 509 through the rotating shaft 1 502, and then the driven bevel gear 5010 meshing with it is driven to rotate, and the rotating shaft 2 5011 and the worm 5012 are driven to rotate synchronously, and when the worm 5012 rotates, it can drive the worm wheel 5013 meshing with it to rotate, and then drive the support shaft 3 and the cross 4 to rotate. After the frame 4 rotates 90°, the meshing relationship between the residual gear 505 and the full gear 508 is released, and at this time, the cam 506 releases the contact with the contact wheel 507, and pushes the injection molding machine 12 to move to the side close to the molding mold through the elastic force of the return spring 1103, until the injection molding machine 12 is connected with the injection molding port 19 of the molding mold of the next group of air-conditioning shells to be injection molded, and then the driving mechanism 5 is closed, and then the injection molding machine 12 is started again to perform injection molding on the molding mold of the next group of air-conditioning shells to be injection molded;

[0066] S3: During the 90° rotation of the cross 4 in step 2, the four groups of opening and closing mechanisms 13 and the molding mold installed on the opening and closing mechanisms 13 will be driven to rotate synchronously. The molding mold injected with the molten plastic will rotate 90° and stop near the top of the injection box 2 for static cooling. When the driving mechanism 5 is operated next time and the molding mold is driven to rotate 90°, the molding mold can pass through the arc-shaped outer rack 8. When the opening and closing mechanism 13 makes a circular motion around the center of the arc-shaped outer rack 8, when the driving gear 1306 in the opening and closing mechanism 13 moves to mesh with the arc-shaped outer rack 8, the driving gear 1306 can be driven to revolve around the center of the arc-shaped outer rack 8 while rotating on its own, thereby driving the bidirectional screw rod 1302 to rotate clockwise. Under the limiting effect of the guide rod 1304 on the guide ring 1305 and the molding mold, the molding mold 1 6 and the molding mold 2 7 are moved to the separated side, thereby The molding mold 1 6 and the molding mold 2 7 are separated and opened, and rotated to the position near the left side inside the injection molding box 2 for unloading operation. When the molding mold 1 6 and the molding mold 2 7 are separated and opened, the demoulding mechanism 15 is driven to move synchronously. When the demoulding mechanism 15 abuts against the trigger plate, the demoulding mechanism 15 can be triggered to eject the air-conditioning shell after injection molding in the molding mold. The demoulded air-conditioning shell falls onto the unloading roller frame 16 by its own gravity, and the air-conditioning shell is transported to the outside of the injection molding box 2 through the unloading roller frame 16. In the next two operations of the driving mechanism 5 (each time the driving mechanism 5 operates, the molding mold rotates 90°), the molding mold can be driven to pass through the arc-shaped inner rack 9 and cooperate with the opening and closing mechanism 13 to close the molding mold 1 6 and the molding mold 2 7 to wait for the next injection molding operation, and rotate to the right side inside the injection molding box 2, that is, the position opposite to the injection molding machine 12 to perform the injection molding operation of the air-conditioning shell.

[0067] S4: When the molding mold rotates, when the molding mold abuts against the unloading roller frame 16, the unloading roller frame 16 is driven to rotate to avoid it, and after the molding mold passes the position of the unloading roller frame 16, the unloading roller frame 16 is reset by the elastic force of the reset torsion spring, so as to carry out the subsequent transportation of the air conditioner casing.

[0068] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the demolding mechanism 15 includes a push rod 1501 movably installed on the molding mold, one end of the push rod 1501 located inside the molding mold is fixedly connected to a demolding plate 1502, the other end of the push rod 1501 is fixedly connected to a trigger block 1503, and a reset spring 1504 is fixedly connected between the trigger block 1503 and the molding mold.

[0069] When the opening and closing mechanism 13 and the arc-shaped outer rack 8 are used in conjunction to drive the molding mold 1 6 and the molding mold 2 7 to separate and open, since the demolding mechanism 15 is installed on the molding mold, the movement of the molding mold will drive the demolding mechanism 15 to move synchronously. When the trigger block 1503 in the demolding mechanism 15 moves to contact the trigger frame 14, the molding mold continues to move, which will drive the molding mold to move relative to the trigger frame 14, and the trigger block 1503 and the demolding plate 1502 are restricted by the trigger frame 14 and cannot continue to move. At this time, the molding mold will move relative to the demolding plate 1502, so that the air-conditioning shell in the molding mold is ejected by the demolding plate 1502, and the automatic demolding operation of the air-conditioning shell is realized. When the opening and closing mechanism 13 and the arc-shaped inner rack 9 are used in conjunction to drive the molding mold 1 6 and the molding mold 2 7 to close, the elastic force of the reset spring 2 1504 pushes the demolding plate 1502 to move relative to the molding mold for a reset operation, thereby preventing the demolding mechanism 15 from ejecting the air-conditioning shell in the molding mold next time.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient injection molding device for producing air conditioner shells, comprising a body (1) and an injection molding box (2) fixedly mounted on the top of the body (1), characterized in that: A support shaft (3) is rotatably mounted between the front and back sides of the inner wall of the injection molding box (2); a cross (4) is fixedly mounted on the outer surface of the support shaft (3); four sets of opening and closing mechanisms (13) are fixedly connected to the cross (4); a molding die 1 (6) and a molding die 2 (7) are arranged on the opening and closing mechanisms (13); an arc-shaped outer rack (8) and an arc-shaped inner rack (9) are fixedly mounted on the front and back sides of the inner wall of the injection molding box (2) and at positions corresponding to the opening and closing mechanisms (13); the opening and closing mechanisms (13) are used in conjunction with the arc-shaped outer rack (8) to separate and open the molding die 1 (6) and the molding die 2 (7); and the opening and closing mechanisms (13) are used in conjunction with the arc-shaped inner rack (9) to close and close the molding die 1 (6) and the molding die 2 (7); The front and back sides of the injection molding box (2) are both provided with slide grooves (10), a retreat mechanism (11) is installed between the two slide grooves (10), an injection molding machine (12) is arranged on the retreat mechanism (11), and a driving mechanism (5) is also arranged on the back side of the injection molding box (2); The driving mechanism (5) is used to drive the retreat mechanism (11) to operate, so that the injection molding machine (12) retreats, and then drives the cross (4) to rotate 90 degrees, drives the four groups of molding molds to exchange positions, and then drives the injection molding machine (12) to reset through the retreat mechanism (11) to perform the injection molding operation of the air conditioner shell.

2. The high-efficiency injection molding device for producing air conditioner shells according to claim 1 is characterized in that: The driving mechanism (5) comprises a driving motor (501), a rotating shaft (502), a connecting rod (503) and a fixing block (504); the output end of the driving motor (501) is fixedly connected with a residual gear (505) and a cam (506); the end of the connecting rod (503) close to the cam (506) is rotatably connected with an abutment wheel (507); both ends of the rotating shaft (502) are respectively fixedly sleeved with a full gear (508) and a driving bevel gear (509); the outer surface of the driving bevel gear (509) is meshed with a driven bevel gear (5010); the top of the driven bevel gear (5010) is fixedly connected with a rotating shaft (5011); the outer surface of the rotating shaft (5011) is fixedly sleeved with a worm (5012); the outer surface of the worm (5012) is meshed with a worm wheel (5013).

3. The high-efficiency injection molding device for producing air conditioner shells according to claim 1 is characterized in that: The retreat mechanism (11) comprises two sliders (1101), a U-shaped frame (1102) is fixedly connected between the two sliders (1101), and a return spring (1103) is fixedly connected between the two sliders (1101) and the slide groove (10), and the injection molding machine (12) is fixedly mounted on the U-shaped frame (1102).

4. The high-efficiency injection molding device for producing air conditioner shells according to claim 1 is characterized in that: The opening and closing mechanism (13) comprises a fixing frame (1301) fixedly mounted on the cross (4); a bidirectional screw rod (1302) is rotatably mounted on the fixing frame (1301); two threaded blocks (1303) are threadedly connected to the outer surface of the bidirectional screw rod (1302); and driving gears (1306) are fixedly connected to both ends of the bidirectional screw rod (1302); a guide rod (1304) is also fixedly mounted on the fixing frame (1301); and two guide rings (1305) are movably sleeved on the outer surface of the guide rod (1304).

5. The high-efficiency injection molding device for producing air conditioner shells according to claim 4 is characterized in that: Both ends of the guide rod (1304) are fixedly connected to a trigger frame (14), and a demoulding mechanism (15) is provided inside the molding die 1 (6) and the molding die 2 (7).

6. The high-efficiency injection molding device for producing air conditioner shells according to claim 5, characterized in that: The demoulding mechanism (15) comprises a push rod (1501) movably installed through the molding die, one end of the push rod (1501) located inside the molding die is fixedly connected to a demoulding plate (1502), the other end of the push rod (1501) is fixedly connected to a trigger block (1503), and a second return spring (1504) is fixedly connected between the trigger block (1503) and the molding die.

7. The high-efficiency injection molding device for producing air conditioner shells according to claim 1 is characterized in that: The molding mold 1 (6) and the molding mold 2 (7) have a molding cavity on one side opposite to the other, and an injection port (19) is provided on one side of the molding mold 1 (6) and the molding mold 2 (7), and the injection port (19) is communicated with the molding cavity.

8. The high-efficiency injection molding device for producing air conditioner shells according to claim 1 is characterized in that: A material discharge roller frame (16) is rotatably mounted on a rotating shaft between the front and back sides of the inner wall of the injection molding box (2) and on a side away from the injection molding machine (12), and a return torsion spring is fixedly connected between the material discharge roller frame (16) and the injection molding box (2).

9. The high-efficiency injection molding device for producing air conditioner shells according to claim 1, characterized in that: A control panel (17) is fixedly connected to the front of the injection molding box (2), and an observation window (18) is provided on a side of the front of the injection molding box (2) close to the injection molding machine (12).

10. A method for using a high-efficiency injection molding device for producing an air conditioner shell, according to the high-efficiency injection molding device for producing an air conditioner shell according to claims 1-9, characterized in that: The specific steps include: S1: The injection molding machine (12) injects molten plastic into the molding cavities of the molding mold 1 (6) and the molding mold 2 (7) abutting against each other. After the injection molding is completed, the driving mechanism (5) is started through the control panel (17). The driving mechanism (5) operates to use the cam (506) to push the abutting wheel (507) and the connecting frame to move to the side away from the cam (506), thereby driving the U-shaped frame (1102) and the injection molding machine (12) to move to the side away from the molding mold, thereby making room for the subsequent rotation and replacement of the molding mold. During this process, the residual gear (505) and the full gear (508) are in a non-meshing state; S2: The driving mechanism (5) continues to operate until the residual gear (505) is driven to mesh with the full gear (508), and then the full gear (508) is driven to rotate. Then, through the coordinated use of the rotating shaft 1 (502), the driving bevel gear (509), the driven bevel gear (5010), the worm wheel (5013) and the worm (5012), the supporting shaft (3) and the cross (4) are driven to rotate 90 degrees, and the residual gear (505) and the full gear (508) are released. The cam (506) releases the contact with the contact wheel (507) and pushes the injection molding machine (12) to move toward the side close to the molding mold through the elastic force of the return spring 1 (1103) until the injection molding machine (12) contacts the injection molding port (19) on the molding mold of the next group of air conditioner shells to be injection molded, and then the drive mechanism (5) is closed, and then the injection molding machine (12) is started again to perform injection molding on the molding mold of the next group of air conditioner shells to be injection molded; S3: During the process of the cross (4) rotating 90° in step 2, the four sets of opening and closing mechanisms (13) and the molding molds installed on the opening and closing mechanisms (13) will be driven to rotate synchronously, and the molding molds injected with molten plastic will rotate 90°, so that they will stop at a position near the top inside the injection molding box (2) and be left to cool. When the driving mechanism (5) is operated next time and the molding mold is driven to rotate 90°, the molding mold can pass through the arc-shaped outer rack (8), and through the coordinated use of the arc-shaped outer rack (8) and the opening and closing mechanism (13), the molding mold 1 (6) and the molding mold 2 (7) are separated and opened, and rotated to a position near the left side inside the injection molding box (2). The unloading operation is performed at the position, and when the molding mold 1 (6) and the molding mold 2 (7) are separated and opened, the demoulding mechanism (15) is driven to move synchronously. When the demoulding mechanism (15) abuts against the trigger plate, the demoulding mechanism (15) can be triggered to eject the air conditioner shell after injection molding in the molding mold. When the driving mechanism (5) is operated twice, the molding mold can be driven to pass through the arc-shaped internal rack (9) and cooperate with the opening and closing mechanism (13) to close the molding mold 1 (6) and the molding mold 2 (7) to wait for the next injection molding operation, and rotate to the right side inside the injection molding box (2), that is, to the position opposite to the injection molding machine (12) to perform the injection molding operation of the air conditioner shell.

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