Injection molding equipment and method for outer shell of automobile electric storage box

Abstract

The invention belongs to the technical field of injection molding, and particularly relates to an automobile electric storage box outer shell injection molding device and method.The automobile electric storage box outer shell injection molding device comprises an injection molding machine and an injection mold, the injection molding machine comprises a base, a cavity and an injection molding pipe, the injection mold comprises a lower mold and an upper mold, and a pipe opening is connected to the upper portion of the upper mold; the injection molding pipe is connected with an external hydraulic pump hose, and an external hydraulic pump is connected with a liquefied plastic pipeline; the cavity is fixedly installed above the base, the lower mold is fixedly installed above the base, the upper mold is attached to the lower mold, the injection molding pipe is connected with the pipe opening, a sliding hole is formed in the upper portion of the cavity, and the injection molding pipe is connected into the sliding hole in a sliding mode. The problems that the production rate is reduced due to the fact that the mold cannot be automatically opened and closed, and the forming efficiency is low and the forming quality is poor due to the fact that the bottom of the shell cannot be cooled during mold opening are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding, and in particular relates to an injection molding device and method for an outer shell of an automobile electric storage box. Background Art

[0002] The electric storage box for cars is a box used for storing things in cars. This type of box is generally electric now, and due to material restrictions, it is usually made of plastic, which is lighter and more beautiful. When the outer shell of the electric storage box for cars is injected, the injection efficiency cannot be guaranteed, resulting in the need to manually open and close the mold for large-scale shell injection molding, resulting in reduced production efficiency. In addition, the bottom generally cannot be cooled quickly, or the cooling effect is poor, resulting in the bottom surface cannot be completely formed, and it is easy to be damaged when taken out, resulting in a significant reduction in molding quality. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0003] The object of the present invention is to provide an injection molding device and method for an outer shell of an automobile electric storage box to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an injection molding device and method for the outer shell of an automobile electric storage box, comprising an injection molding machine and an injection mold, the injection molding machine comprising a base, a chamber and an injection molding tube, the injection molding tube comprising a lower mold and an upper mold, the upper part of the upper mold is connected with a pipe nozzle, the injection molding tube is connected with an external hydraulic pump hose, and the external hydraulic pump is connected with a liquefied plastic pipeline; the chamber is fixedly installed above the base, the lower mold is fixedly installed above the base, the upper mold is attached to the lower mold, the injection molding tube is connected with the pipe nozzle, and a sliding hole is opened above the chamber. The injection molding tube is slidably connected in the sliding hole, a threaded block is fixed on the inner wall of the chamber, a threaded rod is connected to the bottom bearing of the injection molding tube, and the threaded rod is threadedly connected to the threaded block, a connecting block is fixed to the lower end of the threaded rod, and a slide groove is provided on the left and right sides of the connecting block, a slider is slidably connected to the inner wall of the slide groove, and the slider is connected to the bottom spring of the slide groove, a toothed disk is fixed on the outer side of the slider, a motor is fixed to the inner wall of the chamber, a gear is fixed to the output end of the motor, and the gear and the toothed disk are meshed with each other, a pressure rod is fixed to one side of the motor, and the lower end of the pressure rod is in contact with the upper surface of the toothed disk.

[0005] The present invention further illustrates that a connecting rod is fixed to the bottom end of the connecting block, a hydraulic plate is fixed to the bottom end of the connecting rod, and the hydraulic plate is slidably connected to the inner wall of the chamber; the bottom of the hydraulic plate is filled with coolant, a cooling groove is provided at the bottom of the lower mold, a fixed plate is provided above the hydraulic plate, and the fixed plate is fixed to the inner wall of the chamber, the connecting rod is slidably connected to the middle of the fixed plate, and the cooling groove is connected to the pipeline below the fixed plate.

[0006] The present invention further illustrates that a disc is fixedly installed at the bottom of the fixed plate, guide blocks are slidably connected to the left and right sides below the disc, an elastic expansion joint is fixed between the guide block and the hydraulic plate; a stirring piece is fixed on the outside of the elastic expansion joint.

[0007] The present invention further illustrates that telescopic rods are fixedly installed on both sides of the inner wall of the chamber, a magnetic block is fixed to the bottom end of the telescopic rod, and the magnetic block is located above the fixed plate, the guide block is magnetic, and the magnetic pole is the same as the magnetic block; the bottom of the chamber is connected to the external pipeline, and a one-way valve is arranged in the pipeline, the bottom of the chamber is connected to the telescopic rod pipeline, and a pressure valve and an air cavity are arranged in the pipeline, the air cavity is located below the pressure valve, and the telescopic rod is connected to the external control valve pipeline.

[0008] The present invention further illustrates that the operation method of the automobile electric storage box outer shell injection molding equipment includes the following steps: step S1, the automobile electric storage box outer shell injection molding equipment is operated, the motor rotates, and drives the upper mold and the lower mold to merge; step S2, an external hydraulic pump extracts liquefied plastic and injects it into the nozzle through the injection molding tube, and finally enters the mold to perform injection molding; step S3, after the automobile electric storage box outer shell is formed, the drive motor rotates in the opposite direction, thereby opening the upper mold and taking out the molded automobile electric storage box outer shell; step S4, repeating steps S1 to S3 to perform continuous injection molding.

[0009] The present invention further illustrates that in the step S1, a time adjustment module is provided inside the motor; a cooler is provided inside the lower mold, and the cooler has a temperature adjustment function. The cooler is electrically connected to the time adjustment module, and the time adjustment module is used to automatically adjust the motor rotation according to the cooling temperature of the cooler so that the upper mold and the lower mold stay for a period of time after being fitted, thereby controlling the molding time. By controlling the molding time, the time of mold closing and mold opening is controlled, thereby controlling the working frequency of injection molding.

[0010] The present invention further illustrates that in step S4, when the production volume is large, the injection molding is repeated several times, the pressure valve reaches the pressure bearing limit, and thus opens, and the telescopic rod extends, until all molding is completed, and the external control valve opens.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention opens the injection mold, and after the molding is completed, the motor rotates in the opposite direction, thereby opening the injection mold, which is convenient for the operator to take out the molded automobile electric storage box outer shell, and the operation is automated, convenient and efficient, thereby relatively improving the productivity. At the same time, the bottom of the injection mold can be quickly cooled during injection molding, thereby accelerating the molding speed of the bottom thereof, and at the same time facilitating demoulding, and playing a cooling role, preventing the bottom temperature of the taken-out automobile electric storage box outer shell from being high and causing scalding to the operator, thus playing a protective role. When the hydraulic plate rotates, it drives the stirring blade to stir the coolant, thereby accelerating the cooling speed of the coolant, preventing the cooling effect from being affected due to the lack of heat dissipation during the cooling of the coolant during the injection molding process, and further improving the cooling efficiency. After repeating the injection molding work several times, the hydraulic plate moves up and down several times, and the telescopic rod drives the magnetic block to move downward, making it close to the guide block. The two generate magnetic repulsion, thereby reducing the friction between the guide block and the disc, reducing wear and making the rotation smoother, thereby further improving the stirring intensity of the coolant and further improving the heat dissipation efficiency of the coolant. At the same time, when the production volume is small, the telescopic rod will not extend, so there is no need to subject the guide block to magnetic repulsion, reducing magnetic consumption and increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a right side view of the present invention; Figure 3 It is a schematic diagram of the internal structure of the chamber of the present invention; Figure 4 It is a schematic diagram of the installation position of the disc of the present invention; Figure 5 It is a schematic diagram of all structures below the injection molding tube of the present invention; Figure 6 is a cross-sectional view of all structures below the injection molding tube of the present invention; In the figure: 1. base; 2. chamber; 21. threaded block; 22. motor; 221. gear; 23. telescopic rod; 231. magnetic block; 3. injection molding tube; 31. threaded rod; 32. connecting block; 321. slide groove; 322. slider; 33. toothed disc; 34. connecting rod; 341. hydraulic plate; 35. fixed plate; 351. disc; 352. guide block; 353. elastic telescopic joint; 354. stirring piece; 4. lower mold; 41. cooling trough; 5. upper mold; 51. nozzle. DETAILED DESCRIPTION

[0013] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. 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.

[0014] See also Figure 1-6 The present invention provides a technical solution: an injection molding device and method for an outer shell of an automobile electric storage box, comprising an injection molding machine and an injection molding mold, the injection molding machine comprising a base 1, a chamber 2 and an injection molding tube 3, the injection molding mold comprising a lower mold 4 and an upper mold 5, a pipe orifice 51 is connected to the upper portion of the upper mold 5, the injection molding tube 3 is connected to an external hydraulic pump hose, and the external hydraulic pump is connected to a liquefied plastic pipeline; The chamber 2 is fixedly mounted on the top of the base 1, the lower mold 4 is fixedly mounted on the top of the base 1, the upper mold 5 is fitted on the lower mold 4, the injection tube 3 is connected to the nozzle 51, a sliding hole is opened on the top of the chamber 2, and the injection tube 3 is slidably connected in the sliding hole, a threaded block 21 is fixed on the inner wall of the chamber 2, a threaded rod 31 is connected to the bottom bearing of the injection tube 3, and the threaded rod 31 is threadedly connected to the threaded block 21, and a connecting block 32 is fixed at the lower end of the threaded rod 31, and the connecting block 3 The left and right sides of the chamber 2 are provided with a slide groove 321, the inner wall of the slide groove 321 is slidably connected with a slider 322, and the slider 322 is connected with the bottom spring of the slide groove 321, and a toothed disc 33 is fixed on the outer side of the slider 322, and the inner wall of the chamber 2 is fixed with a motor 22, and the output end of the motor 22 is fixed with a gear 221, and the gear 221 and the toothed disc 33 are meshed with each other, and a pressing rod is fixed on one side of the motor 22, and the lower end of the pressing rod is in contact with the upper surface of the toothed disc 33; When the injection molding equipment for the outer shell of the automobile electric storage box is running, the motor 22 is started, driving the gear 221 to rotate, and the gear 221 drives the toothed disc 33 to rotate through meshing, and the toothed disc 33 drives the connecting block 32 to rotate through the slider 322. The toothed disc 33 is subjected to the force of the pressing rod, thereby squeezing the spring deformation through the slider 322, and the slider 322 slides along the inner wall of the slide groove 321, and the connecting block 32 drives the threaded rod 31 to rotate, so that the threaded rod 31 moves up and down through the threaded hole of the threaded block 21. The motor 22 rotates forward, and then drives the threaded rod 31 to move downward, thereby driving the injection molding tube 3 to move downward, and the injection molding tube 3 drives the upper mold 5 to move downward through the nozzle 51, so that the upper mold 5 and the lower mold 4 are fitted, and the injection mold is closed. After that, the external hydraulic pump extracts liquefied plastic through the pipeline and injects it into the injection mold through the injection molding tube 3, and then molding is completed. After molding is completed, the motor 22 rotates in the opposite direction, thereby opening the injection mold, which is convenient for the operator to take out the injection molded outer shell of the automobile electric storage box. The operation is automated, convenient and efficient, thereby relatively improving productivity.

[0015] A connecting rod 34 is fixed to the bottom end of the connecting block 32, a hydraulic plate 341 is fixed to the bottom end of the connecting rod 34, and the hydraulic plate 341 is slidably connected to the inner wall of the chamber 2; The lower part of the hydraulic plate 341 is filled with coolant, the bottom of the lower mold 4 is provided with a cooling groove 41, the upper part of the hydraulic plate 341 is provided with a fixing plate 35, and the fixing plate 35 is fixed to the inner wall of the chamber 2, the connecting rod 34 is slidably connected to the middle of the fixing plate 35, and the cooling groove 41 is connected to the pipeline below the fixing plate 35; During the up and down movement of the connecting block 32, the hydraulic plate 341 is driven to move up and down by the connecting rod 34, and rotates at the same time. The hydraulic plate 341 slides up and down along the inner wall of the chamber 2. When the injection mold is closed, the motor 22 rotates forward, the connecting rod 34 moves downward, and the hydraulic plate 341 moves downward, and negative pressure is generated above it, so that the coolant in the cooling groove 41 is extracted. When the injection mold is opened, the motor 22 rotates in the opposite direction, and the hydraulic plate 341 moves upward, pushing the coolant above it into the cooling groove 41 through the pipeline, so that the bottom of the injection mold can be quickly cooled, thereby accelerating the molding speed of the bottom, facilitating demoulding, and playing a cooling role, preventing the bottom temperature of the outer shell of the taken out automobile electric storage box from being high and scalding the operator, thereby playing a protective role.

[0016] A disc 351 is fixedly mounted at the bottom of the fixed plate 35, and guide blocks 352 are slidably connected to the left and right sides of the lower side of the disc 351, and an elastic expansion joint 353 is fixed between the guide block 352 and the hydraulic plate 341; A stirring piece 354 is fixed to the outer side of the elastic expansion joint 353; When the hydraulic plate 341 extracts the coolant in the cooling groove 41 and injects the coolant, the hydraulic plate 341 is in a rotating state. At this time, the elastic expansion joint 353 drives the guide block 352 to rotate along the center of the disk 351, so that the elastic expansion joint 353 rotates around the center of the disk 351, driving the stirring blade 354 to stir the coolant, thereby accelerating the cooling speed of the coolant, preventing the coolant from not being able to dissipate heat in time during cooling during the injection molding process, which affects the cooling effect, and can further improve the cooling efficiency.

[0017] The inner wall of the chamber 2 is fixedly mounted with telescopic rods 23 on both sides, and a magnetic block 231 is fixed to the bottom end of the telescopic rod 23. The magnetic block 231 is located above the fixed plate 35. The guide block 352 is magnetic, and the magnetic pole is the same as that of the magnetic block 231. The bottom of the chamber 2 is connected to an external pipeline, and a one-way valve is arranged in the pipeline. The bottom of the chamber 2 is connected to a telescopic rod 23 pipeline, and a pressure valve and an air cavity are arranged in the pipeline. The air cavity is located below the pressure valve. The telescopic rod 23 is connected to an external control valve pipeline. During the sliding of the hydraulic plate 341 up and down along the inner wall of the chamber 2, gas is extracted from the outside through a pipeline below the hydraulic plate 341 and injected into the air cavity through the pipeline. After repeating the injection molding work several times, the hydraulic plate 341 moves up and down several times, and the air pressure in the air cavity reaches the pressure bearing limit of the pressure valve and opens. The gas quickly enters the telescopic rod 23 through the pipeline, so that the telescopic rod 23 extends. The telescopic rod 23 drives the magnetic block 231 to move downward, so that it is close to the guide block 352. The two generate magnetic repulsion, thereby reducing the friction between the guide block 352 and the disc 351, reducing wear and making the rotation smoother, thereby further improving the stirring intensity of the coolant and further improving the heat dissipation efficiency of the coolant. At the same time, when the production volume is small, the telescopic rod 23 will not extend, so there is no need to subject the guide block 252 to magnetic repulsion, reducing magnetic consumption and increasing service life.

[0018] The operation method of the automobile electric storage box outer shell injection molding equipment comprises the following steps: Step S1, the automobile electric storage box outer shell injection molding equipment is running, the motor 22 rotates, and drives the upper mold 5 and the lower mold 4 to merge; Step S2, the external hydraulic pump extracts the liquefied plastic and injects it into the nozzle 51 through the injection tube 3, and finally enters the mold to perform injection molding; Step S3, after the outer shell of the electric storage box for automobile is formed, the driving motor 22 rotates in the opposite direction, thereby opening the upper mold 5 and taking out the formed outer shell of the electric storage box for automobile; Step S4, repeating steps S1 to S3 to perform continuous injection molding.

[0019] In step S1, a time adjustment module is provided inside the motor 22; A cooler is provided inside the lower mold 4, and the cooler has a temperature regulating function. The cooler is electrically connected to the time regulating module. The time regulating module is used to automatically adjust the rotation of the motor 22 according to the cooling temperature of the cooler so that the upper mold 5 and the lower mold 4 stay for a period of time after being fitted, thereby controlling the molding time. By controlling the molding time, the time of mold closing and mold opening is controlled, and the working frequency of injection molding is further controlled. The lower the temperature of the cooler, the shorter the time the motor 22 stays after forward rotation, and the faster the working frequency of the injection molding. On the one hand, the molding frequency is accelerated for the low temperature of the cooler, thereby improving productivity. On the other hand, the molding frequency is reduced for the high temperature of the cooler, so that the outer shell of the electric storage box of the automobile has enough time to be fully molded, thereby improving the molding quality. When energy saving is required but productivity is reduced, the temperature of the cooler is adjusted higher. When productivity needs to be guaranteed but energy saving is not considered, the temperature of the cooler is adjusted lower.

[0020] In step S4, when the production volume is large, the injection molding is repeated several times, and the pressure valve reaches the pressure bearing limit, thereby opening, and the telescopic rod 23 is extended, until all molding is completed, and the external control valve is opened; The heat dissipation performance of the coolant is enhanced, and when the production volume is small, the coolant is kept to dissipate heat normally. This can improve the cooling effect on the one hand, and reduce the magnetic force consumption between the guide block 352 and the magnetic block 231 on the other hand, thereby further improving the service life of the automobile electric storage box shell injection molding equipment, and the use time of the magnetic block 231 and the guide block 352 can be longer.

[0021] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An injection molding device for an outer shell of an automobile electric storage box, comprising an injection molding machine and an injection mold, characterized in that: The injection molding machine comprises a base (1), a chamber (2) and an injection molding tube (3); the injection molding mold comprises a lower mold (4) and an upper mold (5); a pipe opening (51) is connected to the upper portion of the upper mold (5); the injection molding tube (3) is connected to an external hydraulic pump hose, and the external hydraulic pump is connected to a liquefied plastic pipeline; The chamber (2) is fixedly mounted above the base (1), the lower mold (4) is fixedly mounted above the base (1), the upper mold (5) is fitted on the lower mold (4), the injection molding tube (3) is connected to the tube mouth (51), a sliding hole is opened above the chamber (2), and the injection molding tube (3) is slidably connected in the sliding hole, a threaded block (21) is fixed to the inner wall of the chamber (2), a threaded rod (31) is connected to the bottom bearing of the injection molding tube (3), and the threaded rod (31) is threadedly connected to the threaded block (21), and a connecting block (32) is fixed to the lower end of the threaded rod (31), The connecting block (32) is provided with a slide groove (321) on both the left and right sides; a slider (322) is slidably connected to the inner wall of the slide groove (321); the slider (322) is connected to a spring at the bottom of the slide groove (321); a toothed disc (33) is fixed to the outer side of the slider (322); a motor (22) is fixed to the inner wall of the chamber (2); a gear (221) is fixed to the output end of the motor (22); the gear (221) and the toothed disc (33) are meshed with each other; a pressure rod is fixed to one side of the motor (22); and the lower end of the pressure rod is in contact with the upper surface of the toothed disc (33).

2. The injection molding equipment for the outer shell of an automobile electric storage box according to claim 1, characterized in that: A connecting rod (34) is fixed to the bottom end of the connecting block (32), a hydraulic plate (341) is fixed to the bottom end of the connecting rod (34), and the hydraulic plate (341) is slidably connected to the inner wall of the chamber (2); The bottom of the hydraulic plate (341) is filled with coolant, the bottom of the lower mold (4) is provided with a cooling groove (41), the top of the hydraulic plate (341) is provided with a fixed plate (35), and the fixed plate (35) is fixed to the inner wall of the chamber (2), the connecting rod (34) is slidably connected to the middle of the fixed plate (35), and the cooling groove (41) is connected to the pipeline below the fixed plate (35).

3. The injection molding equipment for the outer shell of an electric storage box for an automobile according to claim 2, characterized in that: A disc (351) is fixedly mounted on the bottom of the fixed plate (35), guide blocks (352) are slidably connected to both left and right sides of the lower side of the disc (351), and an elastic expansion joint (353) is fixed between the guide block (352) and the hydraulic plate (341); A stirring piece (354) is fixed to the outer side of the elastic expansion joint (353).

4. The injection molding equipment for the outer shell of an automobile electric storage box according to claim 3 is characterized in that: Telescopic rods (23) are fixedly mounted on both left and right sides of the inner wall of the chamber (2); a magnetic block (231) is fixed to the bottom end of the telescopic rod (23), and the magnetic block (231) is located above the fixed plate (35); the guide block (352) is magnetic, and its magnetic pole is the same as that of the magnetic block (231); The bottom of the chamber (2) is connected to an external pipeline, and a one-way valve is arranged in the pipeline. The bottom of the chamber (2) is connected to a telescopic rod (23) pipeline, and a pressure valve and an air cavity are arranged in the pipeline. The air cavity is located below the pressure valve. The telescopic rod (23) is connected to an external control valve pipeline.

5. An operating method of an automobile electric storage box outer shell injection molding device, according to any of claims 1 to 4, characterized in that: The operating method of the automobile electric storage box outer shell injection molding device comprises the following steps: Step S1, the automobile electric storage box outer shell injection molding equipment is operated, the motor (22) rotates, and drives the upper mold (5) and the lower mold (4) to merge; Step S2, the external hydraulic pump extracts the liquefied plastic and injects it into the nozzle (51) through the injection tube (3), and finally enters the mold to perform injection molding; Step S3, after the outer shell of the electric storage box for automobile is formed, the driving motor (22) is rotated in the reverse direction, thereby opening the upper mold (5) and taking out the formed outer shell of the electric storage box for automobile; Step S4, repeating steps S1 to S3 to perform continuous injection molding.

6. The operating method of the automobile electric storage box outer shell injection molding equipment according to claim 5 is characterized in that: In the step S1, a time adjustment module is provided inside the motor (22); The lower mold (4) is provided with a cooler inside, and the cooler has a temperature adjustment function. The cooler is electrically connected to a time adjustment module. The time adjustment module is used to automatically adjust the rotation of the motor (22) according to the cooling temperature of the cooler so that the upper mold (5) and the lower mold (4) stay for a period of time after being fitted together, thereby controlling the molding time. By controlling the molding time, the time of mold closing and mold opening is controlled, and the working frequency of the injection molding is further controlled.

7. The operating method of the automobile electric storage box outer shell injection molding equipment according to claim 6 is characterized in that: In step S4, when the production volume is large, the injection molding is repeated several times, and the pressure valve reaches the pressure bearing limit, thereby opening, and the telescopic rod (23) is extended, until all molding is completed, and the external control valve opens.

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