Injection mold for protective sleeve

Abstract

The utility model provides an injection mold for a protective sleeve, and relates to the technical field of injection molds, the injection mold comprises a mounting rack and an upper mold, the outer surfaces of the two sides of the upper mold are respectively and fixedly connected with a connecting block, the center of the top of the upper mold is provided with an injection molding hole, and the top of the mounting rack is fixedly connected with a top plate. According to the cooling device, when the cooling device is used, through the cooperative use of the spraying assembly and the air blowing assembly, a proper amount of water flow can be evenly sprayed to the inner surface of the lower mold body through the flow dividing block, the water flow can absorb the surface temperature of the lower mold body in the heat evaporation process, and the cooling effect is achieved; and meanwhile, the fan can suck external air into the lower mold main body, so that evaporation of water drops attached to the inner surface of the lower mold main body can be accelerated in the process that airflow flows in the lower mold main body, the lower mold main body and the plastic part in the mold cavity can be rapidly cooled, and the cooling effect of the molded plastic part in the mold cavity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a protective cover. Background Art

[0002] Plastic molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. By designing and manufacturing injection molds of different shapes and sizes, various plastic products such as plastic parts, containers, packaging materials, etc. can be produced. Injection molds have the advantages of high precision, high efficiency and repeatable production, and are widely used in many industries such as automobiles, electronics, small household appliances, electronic components, and medical devices.

[0003] In the prior art, such as the injection mold for a mobile phone protective cover of Chinese patent CN213767053U, it includes a working box, the top of the working box is bolted with a base, the top of the base is installed with a lower mold, the surface of the top of the lower mold is provided with a mold cavity, the interior of the lower mold is provided with a mounting groove, the interior of the mounting groove is provided with a cooling pipe, and the top of the cooling pipe is in contact with the top of the inner wall of the mounting groove, and the interior of the working box is provided with a water tank; the utility model is provided with a lower mold, a mounting groove, a cooling pipe, a water tank, a water pump, a water inlet pipe, a drain pipe, an adjustment structure and an upper mold, and the device has the advantages of being able to automatically cool the mold cavity, shorten the cooling time, and improve the cooling efficiency and the molding efficiency of the protective cover, which solves the problem that the cooling efficiency of the existing injection mold is low, the cooling time is too long, and the molding efficiency of the protective cover is affected, and it is worthy of promotion.

[0004] In the above patent, a cooling pipe is arranged on the inner surface of the lower mold so that when the water in the water tank flows into the cooling pipe under the action of a water pump, the flowing water will cool the mold cavity through the pipe wall and the lower mold, which has a certain cooling effect. However, the flowing water conducts heat through the pipe wall and the lower mold, and the cooling pipe is not completely in contact with the inner surface of the lower mold, which increases the cooling time of the lower mold and reduces the cooling effect of the molded plastic part in the mold cavity. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the flowing water conducts heat through the tube wall and the lower mold, the cooling tube does not completely fit the inner surface of the lower mold, which increases the cooling time of the lower mold and reduces the cooling effect of the molded plastic part in the mold cavity, and proposes an injection mold for a protective cover.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection mold for a protective cover, comprising: a mounting frame and an upper mold, the outer surfaces of both sides of the upper mold are respectively fixedly connected with connecting blocks, an injection hole is opened at the top center of the upper mold, the top of the mounting frame is fixedly connected with a top plate, the top of the top plate is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod slides through the top of the top plate, and the output end of the electric telescopic rod is fixedly connected to one of the connecting blocks; a spray assembly, the spray assembly is fixedly connected to the inner bottom surface of the mounting frame, and the spray assembly includes a lower mold body; a blowing assembly, the blowing assembly is fixedly connected to the inner surface wall of the lower mold body, and the blowing assembly includes a mounting cylinder.

[0007] Preferably, the lower mold body is fixedly connected to the inner bottom surface of the mounting frame, a mold cavity is opened on the top of the lower mold body, a mounting plate is fixedly connected to the bottom of the lower mold body, and a diverter block is fixedly connected to the top of the mounting plate.

[0008] Preferably, a plurality of small holes are evenly opened on the top of the diverter block, a water inlet pipe is arranged at the bottom of the diverter block, and the water inlet pipe is connected to the diverter block.

[0009] Preferably, a plurality of through holes are equidistantly formed on the rear surface of the lower mold body, and a drainage pipe is fixedly connected to the inner surface wall of the mounting plate near one side edge.

[0010] Preferably, the installation tube is fixedly connected to the inner surface wall of the lower mold body, a fan device is arranged on the inner surface of the installation tube, and a stopper is fixedly connected to a side of the inner surface of the installation tube away from the fan device.

[0011] Preferably, a plurality of nozzles are evenly arranged on the rear surface of the block, and the nozzles are connected to the block.

[0012] Preferably, a protective cover is fixedly connected to the front surface of the mounting tube, and a plurality of fan-shaped holes are equidistantly formed on the front surface of the protective cover.

[0013] Preferably, a fixing rod is fixedly connected to the top of the connecting block, and the outer surface of the fixing rod is slidably connected to the inner surface of the top plate.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, when in use, through the coordinated use of the spraying component and the blowing component, an appropriate amount of water flow will be evenly sprayed on the inner surface of the lower mold body by the diverter block, and the water flow will absorb the surface temperature of the lower mold body during the evaporation process when it encounters heat, playing a role in cooling down. At the same time, the fan will draw external air into the lower mold body, so that the airflow is accelerated in the lower mold body. During the flow, it will accelerate the evaporation of water droplets attached to the inner surface of the lower mold body, so that the lower mold body and the plastic parts in the mold cavity can be quickly cooled down, thereby improving the cooling effect of the molded plastic parts in the mold cavity.

[0016] 2. In the utility model, when in use, a plurality of through holes for exhaust are arranged on the rear surface of the lower mold body to prevent the evaporated gas from causing burns to personnel, and a protective cover is arranged on the front side of the mounting tube to play a protective role, preventing personnel from accidentally touching the rotating fan and causing personal injury, thereby improving the safety of the injection mold for the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an injection mold for a protective cover is provided for the utility model;

[0018] Figure 2 The utility model provides a schematic diagram of the spray assembly structure of an injection mold for a protective cover;

[0019] Figure 3 A partial structural schematic diagram of an injection mold for a protective cover is provided for the utility model;

[0020] Figure 4 The utility model provides a structural schematic diagram of a blowing component of an injection mold for a protective cover.

[0021] Legend: 1. Mounting frame; 2. Top plate; 3. Spraying assembly; 301. Lower mold body; 302. Mold cavity; 303. Through hole; 304. Mounting plate; 305. Diverter block; 306. Drain pipe; 307. Water inlet pipe; 4. Blowing assembly; 401. Mounting cylinder; 402. Protective cover; 403. Fan device; 404. Block; 405. Spraying pipe; 5. Upper mold; 6. Connecting block; 7. Injection hole; 8. Electric telescopic rod; 9. Fixed rod. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides an injection mold for a protective cover, comprising: a mounting frame 1 and an upper mold 5, the outer surfaces of both sides of the upper mold 5 are respectively fixedly connected with connecting blocks 6, an injection hole 7 is opened at the top center of the upper mold 5, the top of the mounting frame 1 is fixedly connected with a top plate 2, the top of the top plate 2 is fixedly connected with an electric telescopic rod 8, the output end of the electric telescopic rod 8 slides through the top of the top plate 2, and the output end of the electric telescopic rod 8 is fixedly connected to one of the connecting blocks 6; a spray component 3, the spray component 3 is fixedly connected to the inner bottom surface of the mounting frame 1, and the spray component 3 includes a lower mold body 301; a blowing component 4, the blowing component 4 is fixedly connected to the inner surface wall of the lower mold body 301, the blowing component 4 includes a mounting cylinder 401, the lower mold body 301 is fixedly connected to the inner bottom surface of the mounting frame 1, and the top of the lower mold body 301 is opened. The mold cavity 302, the bottom of the lower mold body 301 is fixedly connected with a mounting plate 304, the top of the mounting plate 304 is fixedly connected with a diverter block 305, a plurality of small holes are evenly opened on the top of the diverter block 305, a water inlet pipe 307 is arranged at the bottom of the diverter block 305, the water inlet pipe 307 is connected with the diverter block 305, a plurality of through holes 303 are equidistantly opened on the rear surface of the lower mold body 301, a drain pipe 306 is fixedly connected to the inner wall of the mounting plate 304 near one side edge, the mounting cylinder 401 is fixedly connected to the inner wall of the lower mold body 301, a fan device 403 is arranged on the inner surface of the mounting cylinder 401, a stopper 404 is fixedly connected to the inner surface of the mounting cylinder 401 away from the fan device 403, a plurality of nozzles 405 are evenly arranged on the rear surface of the stopper 404, and the nozzles 405 are connected with the stopper 404.

[0025] The effect achieved by the entire embodiment 1 is that when the injection mold is in use, the upper mold 5 is arranged on the top of the mounting frame 1, and the injection mold is used to produce corresponding plastic parts for electronic components of small household appliances. The electric telescopic rod 8 arranged on the top of the top plate 2 is started. When the output end of the electric telescopic rod 8 extends outward, it will drive the upper mold 5 to move downward accordingly through the connecting block 6. The lower mold body 301 is fixed to the inner bottom surface of the mounting frame 1, corresponding to the position of the upper mold 5. The upper mold 5 can be inserted into the mold cavity 302 accordingly, and then a certain amount of liquid plastic is injected through the injection hole 7. The liquid plastic will quickly fill the gap between the upper mold 5 and the mold cavity 302 under the action of the external injection pressure, and the plastic part will gradually take shape within a certain period of injection. After the plastic part is formed, the external conveying device is started to convey the cooling water to the diverter block 305 through the water inlet pipe 307. A plurality of injection holes are evenly arranged on the top of the diverter block 305, so that the water flow in the diverter block 305 can be changed into Multiple streams of water are sprayed and evenly sprayed on the inner wall of the lower mold body 301. At this time, the surface temperature of the lower mold body 301 is relatively high, and the sprayed water will instantly begin to evaporate and absorb the temperature of the surface of the lower mold body 301. The gas is discharged from multiple through holes 303, which plays a cooling role. Since the mounting plate 304 is fixedly connected to the bottom of the lower mold body 301, it plays a sealing role. The excess water sprayed will be discharged through the rear drain pipe 306, and the fan device 403 arranged on the inner surface of the mounting cylinder 401 is started synchronously. The fan device 403 will pump external air into the lower mold body 301 during rotation. When the airflow enters the lower mold body 301 through the block 404 and multiple nozzles 405, it will accelerate the evaporation rate of the cooling water on its surface, so that the lower mold body 301 and the plastic parts formed in the mold cavity 302 can be quickly cooled down, thereby improving the cooling effect of the injection mold.

[0026] Embodiment 2, as Figure 1-Figure 4 As shown, the front surface of the mounting cylinder 401 is fixedly connected to a protective cover 402, the front surface of the protective cover 402 is provided with a plurality of fan-shaped holes at equal intervals, the top of the connecting block 6 is fixedly connected to a fixing rod 9, the outer surface of the fixing rod 9 is slidably connected to the inner surface of the top plate 2.

[0027] The effect achieved by the entire embodiment 2 is that, when in use, by setting a fixing rod 9 on the top of one of the connecting blocks 6, the upper mold 5 plays a limiting role in the corresponding lifting process, and by setting a protective cover 402 on the front surface of the mounting cylinder 401, a plurality of fan-shaped holes are equidistantly provided on the surface of the protective cover 402, so that external airflow can enter, and at the same time, personnel can be protected to prevent the operator from colliding with the fan device 403 and causing personal injury, thereby improving the safety of the injection mold for the protective cover.

[0028] Working principle: When the injection mold is in use, the upper mold 5 is set on the top of the mounting frame 1. The injection mold is used to produce corresponding plastic parts for electronic components of small household appliances. The electric telescopic rod 8 set on the top of the top plate 2 is started. When the output end of the electric telescopic rod 8 extends outward, it will drive the upper mold 5 to move downward accordingly through the connecting block 6. The lower mold body 301 is fixed on the inner bottom surface of the mounting frame 1, corresponding to the position of the upper mold 5. The upper mold 5 can be inserted into the mold cavity 302 accordingly, and then a certain amount of liquid plastic is injected through the injection hole 7. The liquid plastic will quickly fill the cavity 302 under the action of the external injection pressure. The gap between the upper mold 5 and the mold cavity 302 is filled, and the plastic part will gradually take shape within a certain period of time after injection. After the plastic part is formed, the external conveying device is started to convey the cooling water to the diverter block 305 through the water inlet pipe 307. A plurality of injection holes are evenly arranged on the top of the diverter block 305, so that the water flow in the diverter block 305 can be changed into a plurality of injection water flows, and the inner wall of the lower mold body 301 is evenly sprayed. At this time, the surface temperature of the lower mold body 301 is relatively high, and the sprayed water flow will instantly begin to evaporate and absorb the temperature of the surface of the lower mold body 301. The gas is discharged from the plurality of holes. The water is discharged through the hole 303, which plays a role in cooling down the temperature. Since the mounting plate 304 is fixedly connected to the bottom of the lower mold body 301, it plays a sealing role. The excess water sprayed will be discharged through the rear drain pipe 306, and the fan device 403 arranged on the inner surface of the mounting cylinder 401 is started synchronously. The fan device 403 will pump the external air into the lower mold body 301 during the rotation process. When the airflow enters the lower mold body 301 through the block 404 and multiple nozzles 405, it will accelerate the evaporation rate of the cooling water on its surface, thereby making the lower mold body 301 and the lower mold body 301 The plastic parts formed in the mold cavity 302 can be quickly cooled down, which improves the cooling effect of the injection mold. By setting a fixing rod 9 on the top of one of the connecting blocks 6, the upper mold 5 plays a limiting role in the corresponding lifting process. By setting a protective cover 402 on the front surface of the mounting cylinder 401, a plurality of fan-shaped holes are equidistantly provided on the surface of the protective cover 402, which can allow external airflow to enter, and at the same time can protect personnel to prevent the operator from colliding with the fan device 403 and causing personal injury, thereby improving the safety of the injection mold for the protective cover.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An injection mold for a protective cover, characterized in that: include: A mounting frame (1) and an upper mold (5), the outer surfaces of both sides of the upper mold (5) are respectively fixedly connected with connection blocks (6), the top center of the upper mold (5) is provided with an injection hole (7), the top of the mounting frame (1) is fixedly connected with a top plate (2), the top of the top plate (2) is fixedly connected with an electric telescopic rod (8), the output end of the electric telescopic rod (8) slides through the top of the top plate (2), and the output end of the electric telescopic rod (8) is fixedly connected to one of the connection blocks (6); A spray assembly (3), the spray assembly (3) being fixedly connected to the inner bottom surface of the mounting frame (1), the spray assembly (3) comprising a lower mold body (301); A blowing assembly (4), wherein the blowing assembly (4) is fixedly connected to the inner surface wall of the lower mold body (301), and the blowing assembly (4) comprises a mounting cylinder (401).

2. The injection mold for the protective cover according to claim 1, characterized in that: The lower mold body (301) is fixedly connected to the inner bottom surface of the mounting frame (1), a mold cavity (302) is opened on the top of the lower mold body (301), a mounting plate (304) is fixedly connected to the bottom of the lower mold body (301), and a diverter block (305) is fixedly connected to the top of the mounting plate (304).

3. The injection mold for the protective cover according to claim 2, characterized in that: A plurality of small holes are evenly arranged on the top of the diverter block (305), and a water inlet pipe (307) is arranged at the bottom of the diverter block (305), and the water inlet pipe (307) is connected to the diverter block (305).

4. The injection mold for the protective cover according to claim 2, characterized in that: The rear surface of the lower mold body (301) is provided with a plurality of through holes (303) at equal intervals, and a drainage pipe (306) is fixedly connected to the inner surface wall of the mounting plate (304) near one side edge.

5. The injection mold for the protective cover according to claim 1, characterized in that: The installation tube (401) is fixedly connected to the inner surface wall of the lower mold body (301), a fan device (403) is arranged on the inner surface of the installation tube (401), and a stopper (404) is fixedly connected to a side of the inner surface of the installation tube (401) away from the fan device (403).

6. The injection mold for the protective cover according to claim 5, characterized in that: A plurality of nozzles (405) are evenly arranged on the rear surface of the stopper (404), and the nozzles (405) are connected to the stopper (404).

7. The injection mold for the protective cover according to claim 5, characterized in that: A protective cover (402) is fixedly connected to the front surface of the installation cylinder (401), and a plurality of fan-shaped holes are equidistantly formed on the front surface of the protective cover (402).

8. The injection mold for the protective cover according to claim 1, characterized in that: A fixing rod (9) is fixedly connected to the top of the connection block (6), and the outer surface of the fixing rod (9) is slidably connected to the inner surface of the top plate (2).

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