Washing machine cover plate injection mold

Abstract

The utility model relates to the technical field of washing machine cover plate processing, and discloses a washing machine cover plate injection mold, which comprises a base, a first mold and a second mold, the inner side of the base is provided with a moving mechanism for moving the first mold, and the outer wall of the first mold is provided with a demolding mechanism for demolding the washing machine cover plate. The first mold is moved and combined with the second mold by starting the moving mechanism, then molten plastic is injected into the mold cavity by the injection molding machine, the molten plastic is conveniently injected into the shape of a cover plate of a washing machine, and then the hydraulic rod is started to drive the push plate to do ejection motion in the mold cavity. And finally, the demolding mechanism is started to be adsorbed to the surface of the ejected washing machine cover plate, the hydraulic rod drives the push plate to do retraction motion to be separated from the washing machine cover plate, demolding operation is completed, and the function that the mold is convenient to demold is achieved.

Description

Technical Field

[0001] This utility model relates to the field of washing machine cover processing technology, specifically, to a washing machine cover injection mold. Background Technology

[0002] The washing machine lid is an important component of the washing machine. It serves to protect the internal structure of the washing machine, improve safety, and provide some additional functions. It is used to seal the washing machine, prevent foreign objects from entering, and improve safety during use. The washing machine lid is usually injection molded.

[0003] Currently, in the injection molding process of washing machine lids, existing molds have certain difficulties in demolding, requiring a large demolding force. This not only increases energy consumption during production but may also damage the product and reduce production efficiency. Therefore, those skilled in the art provide an injection mold for washing machine lids to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an injection mold for a washing machine lid, which solves the problem of difficult demolding in the prior art.

[0005] This utility model provides the following technical solution: a washing machine cover injection mold, including a base, a first mold and a second mold, wherein the inner side of the base is provided with a moving mechanism for moving the first mold, and the top of the base is provided with a first mold and a second mold for injection molding the washing machine cover, and the outer wall of the first mold is provided with a demolding mechanism for demolding the washing machine cover.

[0006] As a preferred embodiment of the above technical solution, the moving mechanism includes two sets of connecting guide rails installed on the inner side of the base. Each set of connecting guide rails is slidably fitted with a slide seat. A lead screw is rotatably installed on the side of the base near one of the connecting guide rails. A lead screw sleeve is slidably installed on the surface of the lead screw. A servo motor is installed on one side of the outer wall of the base through a mounting seat. The output end of the servo motor is fixedly connected to one end of the lead screw through a shaft.

[0007] As a preferred embodiment of the above technical solution, the bottom end of the first mold is fixedly installed on the top of the two sets of slide blocks. The interior of the first mold has a mold cavity, and a push plate is slidably installed inside the mold cavity. A hydraulic rod is fixedly installed at one end of the outer wall of the first mold. One end of the hydraulic rod extends into the interior of the first mold and is fixedly connected to the inner wall of the push plate. The hydraulic rod is located at the center of one end of the outer wall of the first mold. Limiting rods are slidably installed at one end of the outer wall of the first mold. Several sets of limiting rods are located on both sides of the hydraulic rod. One end of each set of limiting rods extends into the interior of the first mold and is fixedly connected to both sides of the inner wall of the limiting rod.

[0008] As a preferred embodiment of the above technical solution, the demolding mechanism includes two sets of electric telescopic rods installed on the outer wall of the first mold. The two sets of electric telescopic rods are located on both sides of the outer wall of the first mold. One end of each set of electric telescopic rods is fixedly connected to a mounting frame. An arc-shaped groove is formed on the surface of the end of each set of mounting frames away from the two sets of electric telescopic rods.

[0009] As a preferred embodiment of the above technical solution, a drive motor is fixedly installed inside both sets of mounting frames. The output ends of the two sets of drive motors are fixedly fitted with first connecting rods via shafts. Second connecting rods are slidably connected to the surfaces of the two sets of first connecting rods. A slider is fixedly connected to one side of the top of the two sets of second connecting rods. One end of the two sets of sliders is slidably inserted into the interior of the two sets of arc-shaped grooves.

[0010] As a preferred embodiment of the above technical solution, each of the two sets of sliders is fixedly connected to a connecting rod at the end away from the second connecting rod, and each of the two sets of connecting rods is fixedly fitted with a suction cup at the end away from the two sets of sliders, with the two sets of suction cups located above the two sets of mounting frames.

[0011] As a preferred embodiment of the above technical solution, a vacuum pump is fixedly mounted on the top of the first mold via a mounting base, and the output end of the vacuum pump is fixedly connected to the input ends of two sets of suction cups via a connecting hose.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a moving mechanism to merge the first mold with the second mold. The injection molding machine then injects molten plastic into the mold cavity, shaping the molten plastic into the form of a washing machine lid. A hydraulic rod is then activated, driving a push plate to eject the washing machine lid from the mold cavity. Finally, a demolding mechanism is activated to adhere to the ejected washing machine lid, and the hydraulic rod drives the push plate to retract, disengaging it from the lid and completing the demolding operation. This design facilitates easy demolding and solves the problem of increased energy consumption due to the need for large demolding forces. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an injection mold for a washing machine lid;

[0015] Figure 2 This is a schematic diagram of the moving mechanism in an injection mold for a washing machine lid;

[0016] Figure 3 This is a schematic diagram of the structure of the first mold in an injection mold for a washing machine lid;

[0017] Figure 4 This is a schematic diagram of a demolding mechanism in an injection mold for a washing machine lid.

[0018] Figure 5 This is a schematic diagram of the mounting frame in an injection mold for a washing machine lid.

[0019] Legend:

[0020] 1. Base; 2. Moving mechanism; 201. Connecting guide rail; 202. Slide block; 203. Lead screw; 204. Lead sleeve seat; 205. Servo motor; 3. First mold; 301. Mold cavity; 302. Push plate; 303. Hydraulic rod; 304. Limiting rod; 4. Second mold; 5. Demolding mechanism; 501. Electric telescopic rod; 502. Mounting frame; 503. Arc groove; 504. Drive motor; 505. First connecting rod; 506. Second connecting rod; 507. Slider; 508. Connecting rod; 509. Suction cup; 6. Vacuum pump. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figures 1-5 As shown, this utility model provides a technical solution: a washing machine lid injection mold, including a base 1, a first mold 3 and a second mold 4. The inner side of the base 1 is provided with a moving mechanism 2 for moving the first mold 3. The moving mechanism 2 includes two sets of connecting guide rails 201 installed on the inner side of the base 1. Slide seats 202 are slidably fitted on the surfaces of the two sets of connecting guide rails 201. A lead screw 203 is rotatably installed on the side of the base 1 near one of the sets of connecting guide rails 201. A lead screw sleeve seat 204 is slidably installed on the surface of the lead screw 203. A servo motor 205 is installed on one side of the outer wall of the base 1 through a mounting seat. The output end of the servo motor 205 is fixedly connected to one end of the lead screw 203 through a shaft.

[0023] The servo motor 205 drives the lead screw 203 to rotate in the forward direction. The rotating lead screw 203 drives the lead sleeve seat 204 to move in parallel. The parallel movement of the lead sleeve seat 204 drives one set of slides 202 to move in parallel on the surface of one set of connecting guide rails 201. The parallel movement of one set of slides 202 drives two sets of slides 202 to move in parallel on the surface of another set of connecting guide rails 201 through the first mold 3. This allows the first mold 3 to move smoothly in parallel on the top of the two sets of connecting guide rails 201. The parallel movement of the first mold 3 continues to move towards the second mold 4 until the first mold 3 and the second mold 4 merge. When the first mold 3 and the second mold 4 have merged, the servo motor 205 is turned off to stop the continued movement of the first mold 3. At this time, the injection molding machine injects molten plastic into the mold cavity, so that the first mold 3 and the second mold 4 can inject the molten plastic into the shape of a washing machine lid.

[0024] As one implementation method in this embodiment, please refer to Figure 1 and Figure 3 As shown, the top of the base 1 is provided with a first mold 3 and a second mold 4 for injection molding the washing machine cover. The bottom of the first mold 3 is fixedly installed on the top of two sets of slide blocks 202. The interior of the first mold 3 is provided with a mold cavity 301. A push plate 302 is slidably installed inside the mold cavity 301. A hydraulic rod 303 is fixedly installed on one end of the outer wall of the first mold 3. One end of the hydraulic rod 303 extends into the interior of the first mold 3 and is fixedly connected to the inner wall of the push plate 302. The hydraulic rod 303 is located at the center of one end of the outer wall of the first mold 3. Limiting rods 304 are slidably installed on one end of the outer wall of the first mold 3. Several sets of limiting rods 304 are located on both sides of the hydraulic rod 303. One end of each set of limiting rods 304 extends into the interior of the first mold 3 and is fixedly connected to both sides of the inner wall of the limiting rods 304.

[0025] After the washing machine cover is injection molded, the servo motor 205 is restarted to drive the lead screw 203 to rotate in the opposite direction. The reverse rotation of the lead screw 203 drives the lead sleeve seat 204 to move in parallel. The parallel movement of the lead sleeve seat 204 drives the first mold 3 to move in parallel through two sets of slides 202, which facilitates the separation of the first mold 3 from the second mold 4. When the first mold 3 separates from the second mold 4, the injection-molded washing machine cover separates from the surface of the second mold 4 along with the separation of the first mold 3. At this time, the injection-molded washing machine cover remains inside the mold cavity 301. When it is necessary to remove the injection-molded washing machine cover, the hydraulic rod 303 is activated to drive the push plate 302 to make an ejection movement inside the mold cavity 301, which facilitates the push plate 302 to push the washing machine cover inside the limiting rod 304 out of the mold cavity 301. The setting of the limiting rod 304 can limit the push plate 302 when it slides inside the first mold 3, and prevent the push plate 302 from shifting position during the sliding process.

[0026] As one implementation method in this embodiment, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the outer wall of the first mold 3 is provided with a demolding mechanism 5 for demolding the washing machine lid. The demolding mechanism 5 includes two sets of electric telescopic rods 501 installed on the outer wall of the first mold 3. The two sets of electric telescopic rods 501 are located on both sides of the outer wall of the first mold 3. One end of each set of electric telescopic rods 501 is fixedly connected to a mounting frame 502. The surface of the two sets of mounting frames 502 away from the two sets of electric telescopic rods 501 is provided with an arc-shaped groove 503. The ends of the two sets of sliders 507 away from the second connecting rod 506 are fixedly connected to a connecting rod 508. The ends of the two sets of connecting rods 508 away from the two sets of sliders 507 are fixedly fitted with suction cups 509. The two sets of suction cups 509 are located above the two sets of mounting frames 502. The top of the first mold 3 is fixedly installed with a vacuum pump 6 through a mounting base. The output end of the vacuum pump 6 is fixedly connected to the input end of the two sets of suction cups 509 through a connecting hose.

[0027] When the washing machine lid is fully ejected from the mold cavity 301, two sets of electric telescopic rods 501 are simultaneously activated. The telescopic ends of the two sets of electric telescopic rods 501 push the two sets of mounting frames 502 to move in parallel. The two sets of parallel-moving mounting frames 502 drive the two sets of suction cups 509 to move in parallel, so that the suction ends of the two sets of suction cups 509 are flush with the washing machine lid. At this time, the two sets of electric telescopic rods 501 are closed, stopping the continued movement of the two sets of suction cups 509. Then, two sets of drive motors 504 are simultaneously activated to drive the two sets of... The first connecting rod 505 and the two sets of second connecting rods 506 rotate. The rotating first and second connecting rods 505 and 506 drive the two sets of sliders 507 to slide inside the two sets of arc-shaped grooves 503. The sliding sliders 507 drive the two sets of connecting rods 508 to rotate. The rotating connecting rods 508 drive the two sets of suction cups 509 to rotate. It should be noted that because the two sets of arc-shaped grooves 503 are set in opposite directions, the two sets of connecting rods 508 drive the two sets of suction cups 509 according to the two... The two sets of relatively rotating suction cups 509 gradually approach and adhere to the surface of the washing machine lid. At this time, the vacuum pump 6 is started, and the vacuum pump 6 extracts air from the two sets of suction cups 509 through the connecting hose, so that the two sets of suction cups 509 form a negative pressure, thus tightly adhering to the surface of the washing machine lid. After the two sets of suction cups 509 have adhered to the washing machine lid, the hydraulic rod 303 is started again. The hydraulic rod 303 drives the push plate 302 to retract into the mold cavity 301, so that the push plate 302 is separated from the washing machine lid. Since the suction cups 509 are tightly adhered to the surface of the washing machine lid, the washing machine lid will be gradually pulled out of the surface of the push plate 302 as the suction cups 509 are adsorbed, completing the demolding operation. After demolding is completed, the vacuum pump 6 is turned off, so that the internal pressure of the suction cups 509 returns to normal, thereby releasing the adsorption force on the washing machine lid. At this time, the suction cups 509 can be removed from the washing machine lid manually or automatically, completing the entire demolding process.

[0028] Working principle: When the washing machine lid needs to be injection molded, the servo motor 205 is first started to drive the lead screw 203 to rotate in the forward direction. The rotating lead screw 203 drives the lead sleeve seat 204 to move in parallel. The parallel moving lead sleeve seat 204 drives one set of slides 202 to move in parallel on the surface of one set of connecting guide rails 201. One set of parallel moving slides 202 drives two sets of slides 202 to move in parallel on the surface of another set of connecting guide rails 201 through the first mold 3. This makes it easy for the first mold 3 to move in parallel on the top of the two sets of connecting guide rails 201. The parallel moving first mold 3 continues to move towards the second mold 4 until the first mold 3 and the second mold 4 merge. When the first mold 3 and the second mold 4 have merged, the servo motor 205 is turned off to stop the first mold 3 from moving further. At this time, the injection molding machine injects the molten plastic into the mold cavity, so that the first mold 3 and the second mold 4 can inject the molten plastic into the shape of the washing machine lid.

[0029] After the washing machine cover is injection molded, the servo motor 205 is restarted to drive the lead screw 203 to rotate in the opposite direction. The reverse rotation of the lead screw 203 drives the lead sleeve seat 204 to move in parallel. The parallel movement of the lead sleeve seat 204 drives the first mold 3 to move in parallel through two sets of slides 202, which facilitates the separation of the first mold 3 from the second mold 4. When the first mold 3 separates from the second mold 4, the injection molded washing machine cover separates from the surface of the second mold 4 along with the separation of the first mold 3. At this time, the injection molded washing machine cover remains inside the mold cavity 301. When it is necessary to remove the injection molded washing machine cover, the hydraulic rod 303 is activated to drive the push plate 302 to perform an ejection movement inside the mold cavity 301, which facilitates the push plate 302 to push the washing machine cover inside the limit rod 304 out of the mold cavity 301.

[0030] When the washing machine lid is fully ejected from the mold cavity 301, two sets of electric telescopic rods 501 are simultaneously activated. The telescopic ends of the two sets of electric telescopic rods 501 push the two sets of mounting frames 502 to move in parallel. The two sets of parallel-moving mounting frames 502 drive the two sets of suction cups 509 to move in parallel, so that the suction ends of the two sets of suction cups 509 are flush with the washing machine lid. At this time, the two sets of electric telescopic rods 501 are closed, stopping the continued movement of the two sets of suction cups 509. Then, two sets of drive motors 504 are simultaneously activated to drive the two sets of... The first connecting rod 505 and the two sets of second connecting rods 506 rotate. The rotating first and second connecting rods 505 and 506 drive the two sets of sliders 507 to slide inside the two sets of arc-shaped grooves 503. The sliding sliders 507 drive the two sets of connecting rods 508 to rotate. The rotating connecting rods 508 drive the two sets of suction cups 509 to rotate. It should be noted that because the two sets of arc-shaped grooves 503 are set in opposite directions, the two sets of connecting rods 508 drive the two sets of suction cups 509 according to the two... The two sets of relatively rotating suction cups 509 gradually approach and adhere to the surface of the washing machine lid. At this time, the vacuum pump 6 is started, and the vacuum pump 6 extracts air from the two sets of suction cups 509 through the connecting hose, so that the two sets of suction cups 509 form a negative pressure, thus tightly adhering to the surface of the washing machine lid. After the two sets of suction cups 509 have adhered to the washing machine lid, the hydraulic rod 303 is started again. The hydraulic rod 303 drives the push plate 302 to retract into the mold cavity 301, so that the push plate 302 is separated from the washing machine lid. Since the suction cups 509 are tightly adhered to the surface of the washing machine lid, the washing machine lid will be gradually pulled out of the surface of the push plate 302 as the suction cups 509 are adsorbed, completing the demolding operation. After demolding is completed, the vacuum pump 6 is turned off, so that the internal pressure of the suction cups 509 returns to normal, thereby releasing the adsorption force on the washing machine lid. At this time, the suction cups 509 can be removed from the washing machine lid manually or automatically, completing the entire demolding process.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A washing machine lid injection mold, comprising a base (1), a first mold (3), and a second mold (4), characterized in that: The base (1) is provided with a moving mechanism (2) for moving the first mold (3) on its inner side. The base (1) is provided with a first mold (3) and a second mold (4) for injection molding the washing machine cover on its top. The outer wall of the first mold (3) is provided with a demolding mechanism (5) for demolding the washing machine cover.

2. The injection mold for a washing machine lid according to claim 1, characterized in that: The moving mechanism (2) includes two sets of connecting guide rails (201) installed on the inner side of the base (1). The surfaces of the two sets of connecting guide rails (201) are slidably fitted with slide seats (202). A lead screw (203) is rotatably installed on one side of the base (1) near one of the connecting guide rails (201). A lead screw sleeve seat (204) is slidably installed on the surface of the lead screw (203). A servo motor (205) is installed on one side of the outer wall of the base (1) through a mounting seat. The output end of the servo motor (205) is fixedly connected to one end of the lead screw (203) through a shaft.

3. The injection mold for a washing machine lid according to claim 1, characterized in that: The bottom sides of the first mold (3) are fixedly installed on the top of two sets of slide blocks (202). The mold (3) has a mold cavity (301) inside. The push plate (302) is slidably installed inside the mold cavity (301). A hydraulic rod (303) is fixedly installed on one end of the outer wall of the first mold (3). One end of the hydraulic rod (303) extends into the interior of the first mold (3) and is fixedly connected to the inner wall of the push plate (302). The hydraulic rod (303) is located at the center of one end of the outer wall of the first mold (3). Limit rods (304) are slidably installed on one end of the outer wall of the first mold (3). Several sets of limit rods (304) are located on both sides of the hydraulic rod (303). One end of several sets of limit rods (304) extends into the interior of the first mold (3) and is fixedly connected to both sides of the inner wall of the limit rod (304).

4. The injection mold for a washing machine lid according to claim 1, characterized in that: The demolding mechanism (5) includes two sets of electric telescopic rods (501) installed on the outer wall of the first mold (3). The two sets of electric telescopic rods (501) are located on both sides of the outer wall of the first mold (3). One end of each set of electric telescopic rods (501) is fixedly connected to a mounting frame (502). The surface of the two sets of mounting frames (502) away from the two sets of electric telescopic rods (501) is provided with an arc-shaped groove (503).

5. The injection mold for a washing machine lid according to claim 4, characterized in that: Both sets of mounting frames (502) are fixedly installed with drive motors (504). The output ends of the two sets of drive motors (504) are fixedly fitted with first connecting rods (505) through shafts. The surfaces of the two sets of first connecting rods (505) are slidably connected with second connecting rods (506). The top side of the top of the two sets of second connecting rods (506) is fixedly connected with sliders (507). One end of the two sets of sliders (507) is slidably inserted into the interior of the two sets of arc-shaped grooves (503).

6. The injection mold for a washing machine lid according to claim 5, characterized in that: Each of the two sets of sliders (507) is fixedly connected to a connecting rod (508) at the end away from the second connecting rod (506). Each of the two sets of connecting rods (508) is fixedly fitted with a suction cup (509) at the end away from the two sets of sliders (507). Both sets of suction cups (509) are located above the two sets of mounting frames (502).

7. The injection mold for a washing machine lid according to claim 1, characterized in that: A vacuum pump (6) is fixedly mounted on the top of the first mold (3) via a mounting base. The output end of the vacuum pump (6) is fixedly connected to the input ends of two sets of suction cups (509) via a connecting hose.

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