Injection molding device for processing shell of electric hair drier

Abstract

The invention discloses an injection molding device for processing a shell of an electric hair drier, the injection molding device comprises a device main body, a positioning mechanism for fixing a mold is arranged on the device main body, an operation table is arranged on the side edge of the device main body, and the positioning mechanism comprises cross rods which are symmetrically arranged; the device comprises a device body, the device body comprises two transverse rods, jacking assemblies are arranged between the transverse rods in a sliding fit mode, the jacking assemblies are symmetrically arranged between the two sets of transverse rods, clamping assemblies are rotationally connected to the jacking assemblies, limiting pieces used for locking relative rotation of the clamping assemblies are installed on the jacking assemblies, and a rotating and placing platform is arranged on one side of the device body in an extending mode. And a manipulator is fixedly arranged on one side of the device main body. According to the clamping device, the two sets of clamping assemblies can be conveniently used for moving, clamping and aligning the center when a mold is placed, and switching of positioning and fixing or transferring and fixing of the mold can be completed according to needs.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, specifically an injection molding device for processing hair dryer housings. Background Technology

[0002] Hair dryers are common household appliances, and almost every family has one. To dry freshly washed hair as quickly as possible, many people choose to use hair dryers, so hair dryers are used very frequently. In the existing assembly structure of hair dryers, multiple components inside the outer shell are usually integrated into a single unit, and then this unit is installed into the outer shell.

[0003] To reduce weight, the outer casing of hair dryers is usually made by injection molding. In the current technology, the injection molding of hair dryer casings is a continuous assembly line process. During this process, the mold is sometimes removed and replaced, which can sometimes cause problems such as detachment, affecting safe processing. Summary of the Invention

[0004] The purpose of this invention is to provide an injection molding apparatus for processing hair dryer housings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An injection molding device for processing hair dryer housings includes a main body, a positioning mechanism for fixing a mold is mounted on the main body, an operating table is mounted on the side of the main body, the positioning mechanism includes symmetrically arranged crossbars, a lifting assembly is slidably fitted between the crossbars, the lifting assembly is symmetrically arranged between two sets of crossbars, a clamping assembly is rotatably connected to the lifting assembly, a limiting member for locking the relative rotation of the clamping assembly is mounted on the lifting assembly, a transfer platform extends from one side of the main body, and a robot arm is fixedly mounted on one side of the main body. When the limiting member extending from the lower surface of the lifting component is subjected to force, the output end of the limiting member releases the limiting on the clamping component. When the clamping components are relatively close and the end is subjected to force, the clamping component rotates relative to the lifting component.

[0006] As a further aspect of the present invention: symmetrically sliding through-and-connected assembly screws are provided on both sides of the crossbar, and the assembly screws are fixed to both sides of the crossbar by bolts. An electric telescopic push rod is also rotatably connected to the side of the crossbar, and the electric telescopic push rod is installed in the main body of the device.

[0007] As a further embodiment of the present invention: a guide groove is embedded in the opposite side of the crossbar, the lifting assembly includes an inclined plate, the inclined surfaces of the two inclined plates are arranged opposite each other, a rotating seat is symmetrically arranged at the upper end of the inclined plate, the clamping assembly is rotatably connected between the rotating seats, and a slider is fixedly connected to the end of the inclined plate, the slider being slidably engaged in the guide groove.

[0008] As a further embodiment of the present invention: a bidirectional lead screw is rotatably connected in the guide groove, the bidirectional lead screw passes through the sliders on both sides respectively, and is connected to the sliders on both sides by threaded engagement, and one end of the bidirectional lead screw passes through the end of the crossbar.

[0009] As a further embodiment of the present invention: the clamping assembly includes a clamping plate, the clamping plate having arc surfaces at both ends, a rotating shaft being provided through one end of the clamping plate, a rotating ring being movably sleeved around the rotating shaft, the rotating ring being fixedly installed in a rotating seat, a flange being fixedly provided on the edge of the rotating shaft, a limiting groove being embedded in the inner side of the rotating ring to allow the flange to slide, and a torsion spring being connected between the rotating shaft and the rotating ring.

[0010] As a further aspect of the present invention: the limiting member includes a limiting protrusion elastically connected in the rotating seat, a rotating hole for fixing the rotating ring is embedded on one side of the rotating seat, a sliding hole for the limiting protrusion to slide is embedded in the rotating seat, the limiting protrusion and the sliding hole are connected by a spring, and the spring causes the end face of the limiting protrusion and the end face of the rotating shaft to fit tightly together.

[0011] As a further embodiment of the present invention: a sloping groove is provided on the lower side of the limiting protrusion, a top rod is slidably provided through the bottom of the rotating seat, the upper end of the top rod is slidably fitted with the sloping groove, and the lower end of the top rod extends out from the lower surface of the sloping plate.

[0012] As a further aspect of the present invention: the inclined groove gradually slopes from bottom to top toward the side of the rotating hole away from the side of the rotating hole, and a spring for driving the push rod away from the inclined groove is provided between the push rod and the rotating seat.

[0013] As a further aspect of the present invention: a groove is provided on the rotating shaft, and a protrusion matching the groove is provided on the surface of the limiting protrusion.

[0014] Compared with existing technologies, the advantages of this invention are as follows: During use, the crossbar, in conjunction with the clamping components on both sides, can be used to fix the mold. After processing, the crossbar drives the lifting component and clamping component to press against the platform. The locking mechanism on the rotation of the clamping component can be released by the limiting component, allowing the clamping component to rotate and push the mold upwards as it approaches. Simultaneously, the lifting component also approaches and can extend into the bottom of the mold, preventing and facilitating mold removal. Furthermore, it reduces the risk of the mold falling during transport, making it safer and more convenient to use. Using this solution, it is convenient to move the two sets of clamping components to align the mold center during placement, and it allows for switching between positioning and fixing the mold or for transport and fixing it as needed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the positioning mechanism in this invention.

[0017] Figure 3 This is a schematic diagram of the lifting component and clamping component in this invention.

[0018] Figure 4 This is a schematic diagram of the clamping component in this invention.

[0019] Figure 5 for Figure 4 A magnified structural diagram of region A in the middle.

[0020] Figure 6 This is a schematic diagram of the rotating seat in this invention.

[0021] Figure 7 for Figure 6 A magnified structural diagram of region B in the middle.

[0022] Figure 8 This is a schematic diagram of the robotic arm in this invention.

[0023] In the diagram: 1-Main body of the device, 11-Transfer platform, 2-Positioning mechanism, 21-Horizontal bar, 22-Assembly screw, 23-Guide groove, 24-Lifting assembly, 2401-Sloping plate, 2402-Rotating seat, 2403-Slider, 2404-Rotating hole, 2405-Sliding hole, 2406-Limiting protrusion, 2407-Sloping groove, 2408-Push rod, 25-Clamping assembly, 2501-Clamping plate, 2502-Rotating shaft, 2503-Flange, 2504-Rotating ring, 2505-Limiting groove, 26-Electric telescopic push rod, 3-Operating table, 4-Robot arm. Detailed Implementation

[0024] Please see Figures 1-8 In this embodiment of the invention, an injection molding device for processing hair dryer housings includes a device body 1. The device body 1 is a conventional injection molding equipment used in the prior art for injection molding plastic products for hair dryer housings. It has openings on its front and sides for placing molds, and includes a platform for placing the molds. A positioning mechanism 2 for fixing the molds is installed on the device body 1. An operating table 3 is installed on the side of the device body 1. The device body 1 and the operating table 3 are electrically connected. The operation of the positioning mechanism 2 and the device body 1 can be controlled through the operating table 3. A transfer platform 11 extends from one side of the device body 1. After the mold injection molding is completed, the positioning mechanism 2 can be used to transfer the mold onto the transfer platform 11 for replacement or demolding. A robotic arm 4 is also fixedly installed on one side of the device body 1. After the mold replacement is completed, the robotic arm 4 can be used to transfer the mold to the production line, or the mold on the production line can be moved to the transfer platform 11, fixed using the positioning mechanism 2, and then moved to the device body 1 for injection molding.

[0025] The positioning mechanism 2 includes symmetrically arranged crossbars 21. A lifting assembly 24 is slidably fitted between the crossbars 21. The lifting assembly 24 is symmetrically arranged between two sets of crossbars 21. A clamping assembly 25 is rotatably connected to the lifting assembly 24. A limiting member for locking the relative rotation of the clamping assembly 25 is installed on the lifting assembly 24. When the limiting member extending from the lower surface of the lifting assembly 24 is subjected to force, the output end of the limiting member releases the limiting of the clamping assembly 25. When the clamping assembly 25 is relatively close and its end is subjected to force, the clamping assembly 25 rotates relative to the lifting assembly 24.

[0026] In this way, the crossbar 21, together with the clamping components 25 on both sides, can be used to fix the mold. After processing, the crossbar 21 is moved to bring the lifting component 24 and the clamping component 25 close to the platform. The locking of the clamping component 25 can be released by the limiting component, so that the clamping component 25 can rotate and push the mold upward as it gets closer. At the same time, the lifting component 24 also moves closer and can extend into the bottom of the mold to prevent it from falling during transportation. This makes the mold easier to remove and safer to use. Using the above solution, it is convenient to move the two sets of clamping components 25 to align the mold center when placing it, and it can also switch between positioning and fixing the mold or transporting and fixing it as needed.

[0027] The crossbar 21 is symmetrically and slidably connected to both sides by assembly screws 22. The assembly screws 22 are fixed to both sides of the crossbar 21 by bolts. The use of assembly screws 22 in conjunction with the crossbar 21 can improve structural stability and facilitate transportation. The crossbar 21 is also rotatably connected to an electric telescopic push rod 26. The electric telescopic push rod 26 is installed in the main body 1 of the device. A servo motor is installed in the main body 1. The output end of the servo motor is connected to the electric telescopic push rod 26. The four electric telescopic push rods 26 on the two sets of crossbars 21 can be independently controlled, which can facilitate the smooth transportation of the crossbar 21 as a whole.

[0028] Furthermore, guide grooves 23 are embedded in the opposite sides of the crossbar 21. The lifting assembly 24 includes inclined plates 2401, with the inclined surfaces of the inclined plates 2401 on both sides facing each other. Rotating seats 2402 are symmetrically arranged at the upper ends of the inclined plates 2401. The clamping assembly 25 is rotatably connected between the rotating seats 2402. A slider 2403 is fixedly connected to the end of the inclined plate 2401, and the slider 2403 is slidably fitted in the guide grooves 23. When the sliders 2403 on both sides drive the inclined plates 2401 to move relative to each other, the clamping assembly 25 can be driven to move synchronously. When the clamping assembly 25 is not under force, it is horizontal and slightly tilted upwards, normally maintaining an angle of 5-10°. This allows the clamping assemblies 25 on both sides to rotate under force after contact without jamming.

[0029] The guide groove 23 is rotatably connected to a bidirectional lead screw, which passes through both sides of the slider 2403 and is connected to the slider 2403 by a threaded connection. One end of the bidirectional lead screw passes through the end of the crossbar 21 and can be connected to a knob or a motor for easy control of rotating the bidirectional lead screw. Starting the rotation of the bidirectional lead screw drives the slider 2403.

[0030] To keep the rotation angle within a controllable range, the clamping assembly 25 includes a clamping plate 2501 with arc-shaped ends. A rotating shaft 2502 is provided through one end of the clamping plate 2501. A rotating ring 2504 is movably sleeved around the rotating shaft 2502. The rotating ring 2504 is fixedly installed in the rotating seat 2402. A flange 2503 is fixedly provided on the edge of the rotating shaft 2502. A limiting groove 2505 is embedded in the inner side of the rotating ring 2504 to allow the flange 2503 to slide. A torsion spring connects the rotating shaft 2502 and the rotating ring 2504. The flange 2503 can rotate 30° in the limiting groove 2505. In use, the torsion spring allows the clamping plate 2501 to remain nearly horizontal under normal conditions, with its edge extending from above the inclined plate 2401. This allows the clamping plate 2501 to contact the edge of the mold first. When subjected to force, the clamping plate 2501 rotates, and its edge can be covered with a rubber pad. Under the action of friction, the mold tends to move upward, and the inclined plate 2401 moves relative to it, thus protecting the mold.

[0031] The limiting component includes a limiting protrusion 2406 elastically connected within the rotating seat 2402. A rotating hole 2404 for fixing the rotating ring 2504 is embedded on one side of the rotating seat 2402. A sliding hole 2405 for sliding the limiting protrusion 2406 is embedded within the rotating seat 2402. The limiting protrusion 2406 and the sliding hole 2405 are connected by a spring. The spring causes the end face of the limiting protrusion 2406 and the end face of the rotating shaft 2502 to fit tightly together. A sloping groove 2407 is provided on the lower side of the limiting protrusion 2406. A push rod 2408 is slidably connected through the bottom of the rotating seat 2402. The upper end of the push rod 2408 slides and fits into the sloping groove 2407. The lower end of the push rod 2408 extends from the lower surface of the inclined plate 2401. The inclined groove 2407, located away from the rotating hole 2404, gradually slopes upwards towards the rotating hole 2404. A spring is connected between the push rod 2408 and the rotating seat 2402 to drive the push rod 2408 away from the inclined groove 2407. In this design, the limiting protrusion 2406 is normally in close contact with the surface of the rotating shaft 2502; preferably, both surfaces are frosted to prevent relative rotation and thus restrict the rotation of the clamping plate 2501. When the lower surface of the push rod 2408 is compressed, its upper end pushes the inclined groove 2407, thereby driving the limiting protrusion 2406 away from the rotating shaft 2502, contacting and locking it, thus facilitating the rotation of the clamping plate 2501.

[0032] Furthermore, the lower surface of the inclined plate 2401 is provided with an arc-shaped groove that matches the lower end of the push rod 2408, ensuring a smooth transition during the extrusion process. When the external force is removed, the spring resets, causing the push rod 2408 to retract, and the limiting protrusion 2406, under the action of elastic restoring force, re-adheres tightly to the rotating shaft 2502, restoring the locked state. This structure realizes a mechanical linkage logic of unidirectional triggering and bidirectional self-locking, significantly improving operational reliability and repeatability.

[0033] In order to achieve a stable limiting effect by fitting the rotating shaft 2502 and the limiting protrusion 2406 together, a strip-shaped groove or a cross-shaped groove is provided on the rotating shaft 2502, and a protrusion matching the strip-shaped groove or the cross-shaped groove is provided on the surface of the limiting protrusion 2406. When the two fit together, they can restrict the rotation of the rotating shaft 2502.

Claims

1. An injection molding device for processing hair dryer housings, comprising a device body, wherein a positioning mechanism for fixing a mold is mounted on the device body, and an operating table is mounted on the side of the device body, characterized in that, The positioning mechanism includes symmetrically arranged crossbars, and a lifting assembly is slidably fitted between the crossbars. The lifting assembly is symmetrically arranged between two sets of crossbars. A clamping assembly is rotatably connected to the lifting assembly. A limiting member for locking the relative rotation of the clamping assembly is installed on the lifting assembly. A transfer platform extends from one side of the main body of the device, and a robot arm is fixedly installed on one side of the main body of the device. When the limiting member extending from the lower surface of the lifting component is subjected to force, the output end of the limiting member releases the limiting on the clamping component. When the clamping components are relatively close and the end is subjected to force, the clamping component rotates relative to the lifting component.

2. The injection molding device for processing hair dryer housings according to claim 1, characterized in that, The crossbar is symmetrically and slidably connected to both sides by assembly screws, which are fixed to both sides of the crossbar by bolts. The crossbar is also rotatably connected to an electric telescopic push rod, which is installed in the main body of the device.

3. The injection molding device for processing hair dryer housings according to claim 2, characterized in that, The crossbar has a guide groove embedded in its opposite side. The lifting assembly includes an inclined plate with the inclined surfaces of the two inclined plates facing each other. Rotating seats are symmetrically arranged at the upper end of the inclined plates. The clamping assembly is rotatably connected between the rotating seats. A slider is fixedly connected to the end of the inclined plate and is slidably fitted in the guide groove.

4. The injection molding device for processing hair dryer housings according to claim 3, characterized in that, A bidirectional lead screw is rotatably connected in the guide groove. The bidirectional lead screw passes through the sliders on both sides and is connected to the sliders on both sides by threaded engagement. One end of the bidirectional lead screw passes through the end of the crossbar.

5. The injection molding device for processing hair dryer housings according to claim 3, characterized in that, The clamping assembly includes a clamping plate with arc-shaped ends. A rotating shaft is provided through one end of the clamping plate. A rotating ring is movably sleeved around the rotating shaft. The rotating ring is fixedly installed in a rotating seat. A flange is fixedly provided on the edge of the rotating shaft. A limiting groove is embedded in the inner side of the rotating ring to allow the flange to slide. A torsion spring is connected between the rotating shaft and the rotating ring.

6. The injection molding device for processing the outer shell of a hair dryer according to claim 5, characterized in that, The limiting component includes a limiting protrusion elastically connected to the rotating seat. A rotating hole for fixing the rotating ring is embedded on one side of the rotating seat. A sliding hole for sliding the limiting protrusion is embedded in the rotating seat. The limiting protrusion and the sliding hole are connected by a spring. The spring causes the end face of the limiting protrusion and the end face of the rotating shaft to fit tightly together.

7. The injection molding device for processing the outer shell of a hair dryer according to claim 6, characterized in that, A sloping groove is provided on the lower side of the limiting protrusion, and a push rod is slidably provided at the bottom of the rotating seat. The upper end of the push rod is slidably attached to the sloping groove, and the lower end of the push rod extends from the lower surface of the sloping plate.

8. The injection molding device for processing the outer shell of a hair dryer according to claim 7, characterized in that, The inclined groove gradually slopes from bottom to top toward the side of the rotating hole, away from the rotating hole.

9. An injection molding device for processing hair dryer housings according to claim 8, characterized in that, A spring is provided between the push rod and the rotating seat to drive the push rod away from the inclined groove.

10. An injection molding apparatus for processing the casing of a hair dryer according to any one of claims 6-9, characterized in that, A groove is provided on the rotating shaft, and a protrusion matching the groove is provided on the surface of the limiting protrusion.

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