Automobile controller shell forming device

Abstract

The invention relates to the technical field of controller shells, in particular to an automobile controller shell forming device which comprises a rack, a stand column fixedly installed on the rack, an upper die installed on the stand column in a sliding mode, a material conveying mechanism, a downward pressing assembly driving the upper die to move and a lower die installed on the rack in a sliding mode. The lower die is equally divided into two half dies; a moving mechanism for driving the half molds to move is arranged on the rack; according to the automobile controller shell forming device, the second air cylinder pushes the upper mold to move towards the lower mold, and when the mold closing process is conducted, the lower mold is driven to be separated, so that the problem that a deep groove injection mold is difficult to demold is greatly solved; when the lower die is separated, the suction force generated by the movement of the piston rod II sucks the cooling liquid in the cold area liquid flow path back into the cooling cavity; the refrigerating fluid in the cooling cavity is refrigerated by the refrigerating source; therefore, the problem of poor cooling effect due to long-time use of the cooling liquid is avoided.

Description

Technical Field

[0001] This invention relates to the field of controller housing technology, and more specifically to an apparatus for molding an automotive controller housing. Background Technology

[0002] In the rapid development of the automotive industry, the quality of the casing of the automotive controller, as a core electronic component of the vehicle, directly affects the controller's protection performance, electromagnetic compatibility, and overall reliability.

[0003] Traditional molding processes mainly rely on single-station hydraulic presses or injection molding machines to form the outer shell through metal die casting or plastic injection molding.

[0004] Patent application number CN202310823333.3 relates to the field of plastic material molding technology, and in particular to a molding equipment and method for molding plastic shells of communication connectors. The invention includes a bottom shell, with a lower mold that can be slidably mounted at the top center of the bottom shell. An upper mold is mounted above the lower mold and has a samarium cobalt magnet embedded inside. In this invention, injection molding is performed under pressure through injection holes into the injection cavity. This pressure injection effectively reduces the probability of air bubble formation. During the pressure injection process, the upper mold and the rectangular iron block must overcome the magnetic attraction between the samarium cobalt magnet and the rectangular iron block, thus increasing the pressure inside the injection cavity. This method of increasing the internal pressure of the injection cavity by overcoming magnetic force reduces air bubbles inside the molded communication connector plastic shell and also makes the internal structure of the communication connector plastic shell more tightly connected.

[0005] However, controller housings often have deep cavities, inverted or fine heat dissipation teeth / connector holes, which can easily cause whitening, tearing or even breakage during demolding.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0007] The purpose of this invention is to provide an automotive controller housing molding device that can effectively solve the above-mentioned technical problems.

[0008] To achieve the objectives of this invention, the following technical solution is adopted: An automotive controller housing molding apparatus includes: a frame, a column fixedly mounted on the frame, an upper mold slidably mounted on the column, a material conveying mechanism, a pressing component for moving the upper mold, and a lower mold slidably mounted on the frame; The lower mold is divided into two equal halves; the frame is equipped with a moving mechanism that drives the half molds to move. The moving mechanism includes: a rack one fixedly mounted on the upper mold; a gear meshing with the rack one; rack two and rack three respectively meshing with opposite sides of the gear; rack two and rack three respectively fixedly connected to the half mold; and the gear rotatably mounted on the frame.

[0009] Furthermore, the lower mold is also equipped with a lifting component; The lifting assembly includes: a hinge rod hinged to the half mold, a top plate hinged to the hinge rod, and a top head fixedly installed on the top plate.

[0010] Furthermore, an air outlet is provided on the top head; an air chamber is provided inside the top head; a piston rod is slidably installed inside the air chamber; the piston rod is fixedly connected to the base plate of the frame.

[0011] Furthermore, the mandrels are arranged in a row at equal intervals along the separation point of the lower mold.

[0012] Furthermore, the material conveying mechanism includes: a material conveying chamber communicating with the upper mold; a feeding chamber communicating with the material conveying chamber; a feeding roller rotatably installed in the feeding chamber; a motor driving the feeding roller to rotate; a heating element fixedly installed on the outside of the feeding chamber; a feeding port opened on the feeding chamber; an extrusion rod slidably installed in the material conveying chamber; and a cylinder for pushing the extrusion rod to move.

[0013] Furthermore, the pressing assembly consists of a mounting plate fixedly installed on the column and a second cylinder fixedly installed on the mounting plate; the telescopic rod of the second cylinder is fixedly connected to the upper mold.

[0014] Furthermore, the lower mold is also equipped with a cooling component; The cooling assembly includes: a cold zone liquid flow path opened in the lower mold; a cooling cavity opened at the bottom of the lower mold; a piston rod two slidably installed in the cooling wall; a refrigeration source fixedly installed in the cooling wall; and one end of the piston rod two is fixedly connected to the frame surface.

[0015] Furthermore, the upper mold is provided with a limiting rod; the lower mold is simultaneously provided with a docking rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When a car controller housing molding device pushes the upper mold to move to the lower mold through cylinder two for mold closing process, the separation of the lower mold greatly reduces the problem of difficult demolding of deep groove injection molds; at the same time as the lower mold separates, the suction force generated by the movement of piston rod two draws the coolant in the cold zone liquid flow path back into the cooling chamber; and then the cooling source cools the coolant in the cooling chamber; thereby avoiding the problem of poor cooling effect after long-term use of coolant. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of an automotive controller housing molding device according to the present invention; Figure 2 This is a cross-sectional view of the material conveying mechanism in this invention; Figure 3 This is a schematic diagram of the structure of the limiting rod and the connecting rod in this invention; Figure 4 This is a schematic diagram of the moving mechanism in this invention; Figure 5 for Figure 4 Enlarged view of part A in the middle; Figure 6 This is a schematic diagram of the cooling component in this invention; Figure 7 This is a cross-sectional view of the cooling component in this invention; Figure 8 This is a schematic diagram of the lifting assembly in this invention; Figure 9 This is a cross-sectional view of the lifting assembly in this invention.

[0019] In the diagram: 1. Frame; 2. Column; 3. Upper mold; 4. Material conveying mechanism; 5. Pressing assembly; 6. Lower mold; 7. Half mold; 8. Moving mechanism; 81. Rack 1; 82. Gear; 83. Rack 2; 84. Rack 3; 9. Lifting assembly; 91. Hinge rod; 92. Top plate; 93. Top head; 931. Air outlet; 932. Air chamber; 933. Piston rod 1; 41. Material conveying chamber; 42. Feeding chamber; 43. Feeding roller; 44. Motor; 45. Heating element; 46. Feeding port; 47. Extrusion rod; 48. Cylinder 1; 51. Mounting plate; 52. Cylinder 2; 61. Cooling assembly; 64. Cold zone liquid flow path; 62. Cooling chamber; 63. Piston rod 2; 71. Limiting rod; 72. Connecting rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0022] like Figures 1 to 9 As shown, the present invention provides an automotive controller housing molding device, comprising: a frame 1, a column 2 fixedly mounted on the frame 1, an upper mold 3 slidably mounted on the column 2, a material conveying mechanism 4, a pressing assembly 5 for moving the upper mold 3, and a lower mold 6 slidably mounted on the frame 1. The lower mold 6 is divided into two equal half molds 7; the frame 1 is provided with a moving mechanism 8 that drives the half molds 7 to move. The moving mechanism 8 includes: a rack 81 fixedly mounted on the upper mold 3; a gear 82 meshing with the rack 81; a rack 83 and a rack 84 respectively meshing with opposite sides of the gear 82; the rack 83 and the rack 84 are fixedly connected to the half mold 7 respectively; and the gear 82 is rotatably mounted on the frame 1.

[0023] The lower mold 6 is also provided with a lifting component 9; The lifting assembly 9 includes: a hinge rod 91 hinged to the half mold 7, a top plate 92 hinged to the hinge rod 91, and a top head 93 fixedly installed on the top plate 92.

[0024] In the injection molding process, when the injection molding process is completed and the controller housing formed in the mold cavity needs to be demolded, the mold opening action is initiated. At this time, the upper mold 3 moves upward in a vertical direction, separating from the lower mold 6.

[0025] During the upward movement of the upper mold 3, the rack 81 fixedly installed on the upper mold 3 moves upward synchronously. The rack 81 and the gear 82 form a meshing transmission relationship, thereby driving the gear 82 to rotate around its own axis. Since the gear 82, rack 83, and rack 84 respectively form a gear 82-rack transmission pair, the rotational motion of the gear 82 is synchronously converted into the linear movement of rack 83 and rack 84.

[0026] Rack 2 83 is connected to one of the mold halves 7, and rack 3 84 is connected to the other mold halves 7. Both racks drive their connected mold halves 7 to move linearly in opposite directions along the horizontal direction, thus separating the lower mold 6. This separation method of the lower mold 6 allows the controller housing inside the mold cavity to be easily removed, completing the demolding process.

[0027] It is worth noting that designing the lower mold 6 as a two-part mold 7 structure that can be freely assembled and combined effectively addresses the process requirements for producing shells with deep groove structures. This greatly optimizes the demolding performance of deep groove injection molds, effectively reduces the difficulties encountered in the demolding process, and improves production efficiency and product quality.

[0028] Furthermore, during the separation action of the lower mold 6, the hinge rod 91, which is hinged to the half mold 7, undergoes a linked displacement. As the separation stroke of the lower mold 6 progresses, the hinge rod 91 gradually transitions from an initial inclined state to a taut state. Given that the hinge rod 91 and the top plate 92 are connected by a hinge, when the hinge rod 91 is taut, its linear displacement component is transmitted to the top plate 92 through the hinge point, driving the top plate 92 to move linearly upward in the vertical direction.

[0029] A top head 93 is fixedly installed on the top plate 92. Within the gap formed by the separation of the lower mold 6, the top head 93 moves upward synchronously with the top plate 92 and passes through the gap to precisely abut against the bottom of the already molded controller housing. The upward thrust applied by the top head 93 can effectively overcome the adhesion and friction forces generated between the controller housing and the inner wall of the mold cavity during the injection molding process, preventing the controller housing from sticking to the inside of the mold cavity. This significantly improves the efficiency and success rate of demolding operations and ensures the smoothness and stability of the entire injection molding production process.

[0030] The top head 93 is provided with an air outlet 931; the top head 93 is provided with an air chamber 932; a piston rod 933 is slidably installed in the air chamber 932; the piston rod 933 is fixedly connected to the base plate of the frame 1.

[0031] When the top plate 92 moves vertically upwards in a linear motion under the driving action of the lower mold 6, the piston rod 933 connected to it simultaneously reciprocates linearly within the air cavity 932. This motion causes the internal volume of the air cavity 932 to increase, the air pressure inside the cavity to decrease, and thus a negative pressure environment is formed. Under this negative pressure effect, external air is drawn into the air cavity 932 through the air outlet 931 to balance the air pressure difference.

[0032] As the mandrel 93 continues to rise and finally comes into contact with the bottom of the completed controller housing, the air outlet 931 is blocked by the housing. At this time, because some of the air in the air cavity 932 has been extracted, the air cavity 932 maintains a negative pressure state. Under the adsorption force generated by this negative pressure, the controller housing forms a certain degree of adsorption effect on the mandrel 93. This adsorption force can effectively counteract the adhesion and friction forces generated between the controller housing and the inner wall of the mold cavity during the injection molding process, thereby preventing the controller housing from adhering to the inner wall of the mold cavity when the lower mold 6 performs the mold parting action. If the controller housing adheres to the inner wall of the lower mold 6 mold cavity, the housing will move laterally with the mold cavity during the lower mold 6 mold parting process. This may not only cause the housing to deform, but also have an adverse effect on the structural accuracy and service life of the lower mold 6.

[0033] During the mold closing and injection molding stage, the upper mold 3 moves downward in a vertical direction, while the two half-molds 7 of the lower mold 6 move in opposite directions in a linear motion to achieve mold closing. Simultaneously, the top plate 92 moves downward, driving the piston rod 933 to move in the opposite direction within the air chamber 932, compressing the gas within. The compressed gas is then ejected upward at high speed through the air outlet 931.

[0034] It is particularly important to note that, given the split design of the lower mold 6, it is crucial to ensure that there are no gaps between the two half-molds 7 after the mold is closed. If gaps exist, molten plastic will flow into these gaps during injection molding and form weld lines upon cooling, severely degrading the appearance and mechanical properties of the finished product. Furthermore, after repeated use, plastic debris and other impurities can easily adhere to the separation points of the mold, leading to further gaps.

[0035] To effectively solve the above problems, the ejector heads 93 are arranged in a row at equal intervals along the separation point of the lower mold 6. When the piston rod 933 compresses the gas in the air chamber 932 and ejects it upward from the air outlet 931, the high-speed airflow directly acts on the connecting surface of the two mold halves 7, powerfully blowing away the debris adhering to the connecting surface. In this way, the fitting accuracy of the two mold halves 7 can be significantly improved, ensuring the sealing of the mold interior after mold closing, avoiding the impact of gaps on the molding effect of the product, and thus ensuring the quality stability and consistency of the injection molded product.

[0036] The material conveying mechanism 4 includes: a material conveying chamber 41 communicating with the upper mold 3; a feeding chamber 42 communicating with the material conveying chamber 41; a feeding roller 43 rotatably installed in the feeding chamber 42; a motor 44 driving the feeding roller 43 to rotate; a heating element 45 fixedly installed on the outside of the feeding chamber 42; a feeding port 46 opened on the feeding chamber 42; an extrusion rod 47 slidably installed in the material conveying chamber 41; and a cylinder 48 for pushing the extrusion rod 47 to move.

[0037] After the upper mold 3 and lower mold 6 are closed, the raw material is conveyed into the feeding chamber 42 through the loading port 46 by a pneumatic conveying device. The raw material entering the feeding chamber 42 is immediately placed within the heat radiation range of the heating element 45. The heating element 45 releases precise and uniform heat energy according to preset temperature control parameters, causing the raw material to gradually absorb heat, and the temperature to continue to rise until it reaches a molten state, completing the phase change process from solid to liquid.

[0038] Simultaneously, the motor 44 starts and outputs stable rotational power, which is transmitted to the feeding roller 43 through transmission components such as couplings, driving the feeding roller 43 to rotate at a constant speed around its own axis. The surface of the feeding roller 43 is designed with specific spiral grooves or stirring structures. During its rotation, it not only pushes the molten raw material, causing it to move towards the conveying chamber, but also fully stirs the raw material, ensuring that the temperature and composition of the raw material are uniform and consistent, avoiding quality problems such as local overheating or component segregation.

[0039] Under the pushing and stirring action of the feeding roller 43, the molten raw material smoothly enters the conveying chamber. At this time, cylinder 48 starts to work, its piston rod extends, and pushes the extrusion rod 47 to move linearly forward in the conveying chamber. The extrusion rod 47 applies continuous and stable extrusion pressure to the molten raw material, and injects the raw material through the flow channel at the end of the conveying chamber into the mold cavity formed after the upper mold 3 and the lower mold 6 are closed, completing the entire feeding process and providing sufficient and uniform raw material for the subsequent injection molding process.

[0040] The pressing component 5 consists of a mounting plate 51 fixedly installed on the column 2 and a cylinder 52 fixedly installed on the mounting plate 51; the telescopic rod of the cylinder 52 is fixedly connected to the upper mold 3.

[0041] When it is necessary to drive the upper mold 3 to move downwards to perform a mold closing process with the lower mold 6, the second driving cylinder 52 is used to push the lower mold 6 downwards.

[0042] The lower mold 6 is also provided with a cooling component 61; The cooling component 61 includes: a cold zone liquid flow path 64 opened in the lower mold 6; a cooling cavity 62 opened at the bottom of the lower mold 6; a piston rod 63 slidably installed in the cooling wall; and a cooling source fixedly installed in the cooling wall; one end of the piston rod 63 is fixedly connected to the frame 1.

[0043] When cylinder 52 pushes the upper mold 3 to move to the lower mold 6 for the mold closing process, the two half-molds 7 of the lower mold 6 move towards each other. During this movement, the piston rod 63, which is slidably installed in the half-molds 7, moves axially with them, exerting a positive compression force on the pre-filled cooling medium in the cooling chamber 62. This forces the cooling medium to enter the cold zone liquid flow path 64 through the flow channel. When the lower mold 6 completes the mold closing action, the pre-stored cooling medium in the cooling chamber 62 has been completely transferred to the cold zone liquid flow path 64, forming a highly efficient heat exchange interface for the molded workpiece, thereby significantly improving the cooling efficiency of the molding process.

[0044] During the mold opening process, piston rod 63 undergoes reverse displacement within the cooling chamber 62. The negative pressure generated by this movement draws the cooling medium from the cold zone liquid flow path 64 back into the cooling chamber 62. This returned medium is then subjected to forced circulation cooling by a refrigeration source within the cooling chamber, effectively maintaining the low-temperature operating conditions of the cooling medium. This solves the problem of heat attenuation caused by medium retention in traditional cooling systems, ensuring cooling stability and process repeatability throughout the entire molding process.

[0045] The upper mold 3 is provided with a limiting rod 71; the lower mold 6 is provided with a docking rod 72; when the upper mold 3 moves downward, the limiting rod 71 can dock with the docking rod 72 to ensure the accuracy of mold closing.

[0046] In summary, when cylinder 2 52 pushes the upper mold 3 to move to the lower mold 6 for the mold closing process, the separation of the lower mold 6 greatly reduces the difficulty of demolding deep groove injection molds. At the same time as the lower mold 6 separates, the suction generated by the movement of piston rod 2 63 draws the coolant in the cold zone liquid flow path 64 back into the cooling chamber 62. The cooling source then cools the coolant in the cooling chamber 62, thus avoiding the problem of poor cooling effect after prolonged use of coolant.

[0047] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A molding apparatus for an automotive controller housing, characterized in that, include: A frame, a column fixedly mounted on the frame, an upper mold slidably mounted on the column, a material conveying mechanism, a pressing assembly that drives the upper mold to move, and a lower mold slidably mounted on the frame; The lower mold is divided into two equal halves; the frame is equipped with a moving mechanism that drives the half molds to move. The moving mechanism includes: a rack one fixedly mounted on the upper mold; a gear meshing with the rack one; rack two and rack three respectively meshing with opposite sides of the gear; rack two and rack three respectively fixedly connected to the half mold; and the gear rotatably mounted on the frame.

2. The automotive controller housing molding device as described in claim 1, characterized in that, The lower mold is also equipped with a lifting component; The lifting assembly includes: a hinge rod hinged to the half mold, a top plate hinged to the hinge rod, and a top head fixedly installed on the top plate.

3. The automotive controller housing molding apparatus as described in claim 2, characterized in that, An air outlet is provided on the top head; an air chamber is provided inside the top head; a piston rod is slidably installed inside the air chamber; the piston rod is fixedly connected to the base plate of the frame.

4. The automotive controller housing molding apparatus as described in claim 3, characterized in that, The mandrels are arranged in a row at equal intervals along the separation point of the lower mold.

5. The automotive controller housing molding apparatus as described in claim 1, characterized in that, The material conveying mechanism includes: a material conveying chamber communicating with the upper mold; a feeding chamber communicating with the material conveying chamber; a feeding roller rotatably installed in the feeding chamber; a motor driving the feeding roller to rotate; a heating element fixedly installed on the outside of the feeding chamber; a feeding port opened on the feeding chamber; an extrusion rod slidably installed in the material conveying chamber; and a cylinder for pushing the extrusion rod to move.

6. The automotive controller housing molding apparatus as described in claim 5, characterized in that, The pressing assembly consists of a mounting plate fixedly installed on the column and a cylinder two fixedly installed on the mounting plate; the telescopic rod of the cylinder two is fixedly connected to the upper mold.

7. The automotive controller housing molding apparatus as described in claim 1, characterized in that, The lower mold is also equipped with a cooling component; The cooling assembly includes: a cold zone liquid flow path opened in the lower mold; a cooling cavity opened at the bottom of the lower mold; a piston rod two slidably installed in the cooling wall; a refrigeration source fixedly installed in the cooling wall; and one end of the piston rod two is fixedly connected to the frame surface.

8. The automotive controller housing molding apparatus as described in claim 7, characterized in that, The upper mold is provided with a limiting rod; the lower mold is simultaneously provided with a connecting rod.

Images