Motor shell sealing ring forming die

Abstract

The utility model relates to the technical field of dies, and discloses a motor shell sealing ring forming die which comprises a bottom plate, a lower die block and a top die block, the top of the lower die block is fixedly connected with a lower die core, the bottom of the top die block is fixedly connected with an upper die core, and a main runner is formed in the upper die core. A forming block is installed at the bottom of the upper mold core, a motor shell is arranged at the top of the lower mold core, a branch runner is formed in the top of the lower mold core, a horn pouring gate is formed in the bottom of the forming block, and a plurality of ejector pins are slidably connected into the lower mold block. According to the utility model, a motor shell is placed between the lower mold core and the upper mold core, molten colloid enters the mold through the main runner, then passes through the branch runners and finally flows between the motor shell and the molding block to form a required white sealing ring, and after cooling and shaping, the rubber coating molding is realized, the molding efficiency and the bonding firmness of a rubber coating product are improved, and the production cost is reduced. Meanwhile, the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a molding mold for a sealing ring of a motor housing. Background Art

[0002] The motor housing is treated with a rubber coating process, which can effectively improve the protective performance of the motor housing. By wrapping a layer of rubber or plastic material on the surface of the motor housing, the housing's impact resistance, shock resistance and dust resistance can be enhanced. In addition, the rubber coating process also improves the feel of the motor housing, making it more comfortable and easy to hold. This treatment method has been widely used in various industrial and household appliances, improving the overall quality and service life of the motor.

[0003] After searching, the Chinese patent announcement number is: CN217144653U, which discloses a glue-wrapped mold. On the basis of the transfer mold, an upper limit groove and a lower limit groove are set, an upper glue-wrapped mold cavity is set in the upper limit groove and a lower glue-wrapped mold cavity is set in the lower limit groove. The upper glue-wrapped mold cavity and the lower glue-wrapped mold cavity are combined into a complete glue-wrapped mold cavity, and the glue-wrapped mold cavity is used to realize the glue-wrapping of the position to be glued, and the upper sealing film and the lower sealing film are used as the glue sealing of the two end surfaces of the position to be glued. Since the upper sealing film and the lower sealing film are made of flexible materials, a small amount of deformation is generated during the glue-wrapping process, thereby sealing the gap in the glue-wrapped mold cavity after the mold is closed, thereby realizing sealing of the glue-wrapped position, effectively avoiding the defect of glue overflow, and there is no excess glue overflow after production. After molding, only the flow material needs to be removed, which greatly improves the quality of the glue-wrapping process and saves the steps of manually peeling and cleaning the waste glue generated by the glue overflow, can save a lot of labor costs, and shorten the manufacturing cycle of the product. However, in actual use, the above device exists. Traditional rubber-coated molds are mostly made of metal materials, and the rubber material is coated on the surface of the substrate through a high-temperature vulcanization process. However, this traditional mold has problems such as low molding efficiency and weak bonding, which seriously affects product quality and production efficiency. Therefore, a motor housing sealing ring molding mold is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a motor housing seal ring forming die, which aims to improve the problems of low forming efficiency and weak bonding in traditional dies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motor housing sealing ring forming mold, comprising a base plate, a lower module and a top module, the top of the lower module is fixedly connected to the lower mold core, the bottom of the top module is fixedly connected to the upper mold core, the interior of the upper mold core is provided with a main channel, the bottom of the upper mold core is installed with a forming block, the top of the lower mold core is provided with a motor housing, the top of the lower mold core is provided with a branch channel, the bottom of the forming block is provided with a bull horn gate, the interior of the lower module is slidably connected to a plurality of ejector pins, the interior of the lower module is slidably connected to a runner ejector rod, and a limiting mechanism is provided on the top of the base plate.

[0006] Through the above technical solution: the motor housing product after injection molding is pre-placed between the upper mold core and the lower mold core. After the mold is closed, the molten colloid flows through the main channel and the branch channel to form a white sealing ring between the motor housing and the molding block. After cooling and shaping, the overmolding is realized, thereby improving the molding efficiency and bonding strength of the overmolded product and reducing the production cost.

[0007] As a further description of the above technical solution:

[0008] The limiting mechanism includes multiple connecting plates, and the adjacent sides of the multiple connecting plates are fixedly connected to the front and rear sides of the top module. The opposite sides of the multiple connecting plates are provided with limiting grooves, and the opposite sides of the multiple connecting plates are provided with fixing holes. The inner walls of the multiple fixing holes are threadedly connected with fixing bolts, the inner walls of the multiple limiting grooves are slidably connected with sleeves, and the inner walls of the sleeves are slidably connected with connecting bolts, and the adjacent ends of the multiple connecting bolts pass through the inner wall of the sleeve and are threadedly connected to the front and rear sides of the lower module.

[0009] Through the above technical solution: by connecting the sleeve and the connecting bolt to each other, and passing through the limit groove to be fixed on both sides of the lower module, and the top of the connecting plate is installed on both sides of the top module through multiple fixing bolts, when the lower mold core and the upper mold core are fitted with each other and separated from each other, the sleeve can slide up and down in the limit groove to achieve precise merging of the lower mold core and the upper mold core, thereby improving the quality of the product after casting.

[0010] As a further description of the above technical solution:

[0011] The front and rear sides of the top of the bottom plate are fixedly connected with support plates, and the tops of the two support plates are both arranged on the bottom of the lower module.

[0012] Through the above technical solution: the lower module is supported by the support plate, and operating space is reserved for the lifting device at the bottom.

[0013] As a further description of the above technical solution:

[0014] The bottom of the base plate is threadedly connected to a plurality of reinforcing bolts, and the top ends of the plurality of reinforcing bolts are threadedly connected to the bottom of the support plate.

[0015] Through the above technical solution: the bottom plate and the support plate are mutually reinforced by multiple reinforcement bolts, thereby improving the integrity of the mold.

[0016] As a further description of the above technical solution:

[0017] A feed port is provided on the top of the top module, and the feed port is communicated with the main channel.

[0018] Through the above technical solution: the feed port and the main channel are connected to each other, so that the material can flow into the correct position accurately.

[0019] As a further description of the above technical solution:

[0020] The left sides of the two support plates are fixedly connected with protection plates. The left sides of the protection plates are each provided with a plurality of screw holes, and the inner walls of the plurality of screw holes are threadedly connected with bolts.

[0021] Through the above technical solution: the protection plate can protect the running equipment on the bottom plate to avoid damage from bumps.

[0022] As a further description of the above technical solution:

[0023] An air pump is installed on the top of the bottom plate, and a top column is installed on the top of each bottom plate.

[0024] Through the above technical solution: the air pump cooperates with the ejector column to achieve rapid demoulding of the product and improve production efficiency.

[0025] As a further description of the above technical solution:

[0026] The tops of the two support plates are fixedly connected to limit rods, and a connector is installed on the left side of the top module.

[0027] Through the above technical solution: the limiting rod is fixed on the top of the support plate and is connected to the lower module through the limiting rod to prevent the lower module from deflecting and shaking.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, the motor housing is placed between the lower mold core and the upper mold core. The molten colloid enters the mold through the main channel, then passes through the branch channel, and finally flows between the motor housing and the molding block to form the required white sealing ring. After cooling and shaping, the overmolding is realized. The motor housing is ejected by the ejector pin when the mold is opened to achieve rapid demoulding. At the same time, the runner ejector rod ejects the residual colloid inside the mold, ensuring the cleanliness of the mold and the smooth next use, improving the molding efficiency and bonding firmness of the overmolded product, and reducing production costs.

[0030] 2. In the present invention, the connecting plate is arranged on the front and rear sides of the top module. By inserting multiple fixing bolts into the fixing holes and rotating the fixing bolts to fix the connecting plate on the front and rear sides of the top module, the sleeve is set in the limit groove, and the connecting bolt is inserted into the sleeve and passed through the sleeve to be fixed to the lower module, so as to achieve accuracy in opening and closing between the top module and the lower module, avoid liquid leakage and improve sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a cross-sectional view of a motor housing sealing ring forming die proposed by the utility model;

[0032] Figure 2 This is a structural schematic diagram of a lower mold core of a motor housing seal ring forming mold proposed by the present invention;

[0033] Figure 3 This is a structural schematic diagram of an ejector pin of a motor housing sealing ring forming die proposed by the present invention;

[0034] Figure 4 This is a three-dimensional diagram of a motor housing sealing ring forming mold proposed by the utility model;

[0035] Figure 5 This is a disassembled diagram of a limiting mechanism of a motor housing sealing ring forming mold proposed by the utility model.

[0036] Legend:

[0037] 1. Bottom plate; 2. Limiting mechanism; 201. Connecting plate; 202. Limiting groove; 203. Fixing hole; 204. Fixing bolt; 205. Sleeve; 206. Connecting bolt; 3. Lower module; 4. Top module; 5. Upper mold core; 6. Lower mold core; 7. Main runner; 8. Molding block; 9. Motor housing; 10. Branch runner; 11. Bull horn gate; 12. Reinforcement bolt; 13. Ejector pin; 14. Runner ejector rod; 15. Feed port; 16. Protective plate; 17. Screw hole; 18. Support plate; 19. Bolt; 20. Ejector column; 21. Air pump; 22. Limiting rod; 23. Connector. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1 、 Figure 2 and Figure 3 , the utility model provides an embodiment: a motor housing sealing ring forming mold, including a bottom plate 1, a lower module 3 and a top module 4, the top of the lower module 3 is fixedly connected to the lower mold core 6, the bottom of the top module 4 is fixedly connected to the upper mold core 5, the motor housing 9 is placed through the lower mold core 6 and the upper mold core 5, the interior of the upper mold core 5 is provided with a main channel 7, the bottom of the upper mold core 5 is installed with a molding block 8, the top of the lower mold core 6 is provided with a motor housing 9, the top of the lower mold core 6 is provided with a branch channel 10, and the bottom of the molding block 8 is provided with a bull horn gate 11, the molten colloid flows through the main channel 7 and the branch channel 10 to the motor housing 9 and the molding A white sealing ring is formed between the blocks 8. The interior of the lower module 3 is slidably connected with a plurality of ejector pins 13. The interior of the lower module 3 is slidably connected with a runner ejector rod 14. After cooling and shaping, the motor housing 9 is quickly demoulded by the ejector pins 13 and the runner ejector rod 14, thereby realizing overmolding. A limiting mechanism 2 is provided on the top of the bottom plate 1. A feed port 15 is provided on the top of the top module 4. The feed port 15 is connected to the main channel 7. An air pump 21 is installed on the top of the bottom plate 1. A top column 20 is installed on the top of the bottom plate 1. The tops of the two support plates 18 are fixedly connected to the limiting rod 22. A connector 23 is installed on the left side of the top module 4.

[0040] Specifically, the top of the lower module 3 is fixed with a lower mold core 6, and the bottom of the top module 4 is fixedly connected to the upper mold core 5. The lower mold core 6 and the upper mold core 5 are used to accurately place the motor housing 9. The interior of the upper mold core 5 is designed with a main channel 7, which plays a role in guiding the flow of the molten colloid. At the same time, a forming block 8 is also installed at the bottom of the upper mold core 5. The forming block is used to shape the colloid to form a specific shape and structure. The top of the lower mold core 6 is provided with a groove for placing the motor housing 9, and a plurality of grooves are also opened on the top of the lower mold core 6. The branch channel 10 is connected to the main channel 7 to ensure that the colloid can be evenly distributed to the various parts of the motor housing 9 that need to be encapsulated; the bottom of the forming block 8 is designed with a bullhorn gate 11, which serves as a channel for the colloid to enter the mold. The molten colloid enters the mold through the main channel 7, then passes through the branch channel 10, and finally flows between the motor housing 9 and the forming block 8 to form the required white sealing ring. In order to achieve efficient operation of the mold, the internal sliding connection of the module bottom 3 is equipped with multiple ejector pins 13, which can be opened at the mold opening. The motor housing 9 is ejected when the mold is opened to achieve rapid demoulding. The lower module 3 is internally slidably connected to the runner ejector rod 14 for ejecting residual colloid inside the mold to ensure the cleanliness of the mold and the smooth next use. A feed port 15 is provided on the top of the top module 4, which is connected to the main channel 7 for injecting molten colloid into the mold. In order to ensure the normal operation of the mold, an air pump 21 is also installed on the top of the bottom plate 1 to provide necessary air pressure support. At the same time, a plurality of ejector columns 20 are evenly installed on the top of the bottom plate 1. The ejector columns 20 play a supporting and stabilizing role during the opening and closing of the mold. In addition, the mold also includes two support plates 18. The tops of the support plates 18 are fixedly connected to the limit rods 22. The setting of the limit rods 22 further ensures the stability and accuracy of the mold during the opening and closing process, and avoids the deviation and shaking of the mold. A connector 23 is installed on the left side of the top module 4. The connector 23 is used to connect the mold control system to realize the automatic operation and remote control of the mold, greatly improving the rubber encapsulation quality and production efficiency of the motor housing.

[0041] Reference Figure 4 and Figure 5The limiting mechanism 2 includes a plurality of connecting plates 201, and the adjacent sides of the plurality of connecting plates 201 are fixedly connected to the front and rear sides of the top module 4. The connecting plates 201 are arranged on the front and rear sides of the top module 4. The side away from the plurality of connecting plates 201 is provided with a limiting groove 202, and the side away from the plurality of connecting plates 201 is provided with a fixing hole 203. The inner walls of the plurality of fixing holes 203 are threadedly connected with a fixing bolt 204, and the plurality of fixing bolts 204 are inserted into the fixing holes 203 and the fixing bolts 204 are rotated to fix the connecting plates 201. Fixed on the front and rear sides of the top module 4, the inner walls of the plurality of limiting grooves 202 are slidably connected with sleeves 205, and the inner wall of the sleeve 205 is slidably connected with a connecting bolt 206. The adjacent ends of the plurality of connecting bolts 206 all pass through the inner wall of the sleeve 205 and are threadedly connected to the front and rear sides of the lower module 3. The sleeve 205 is set in the limiting groove 202, and the connecting bolt 206 is inserted into the sleeve 205 and passed through the sleeve 205 to be fixed to the lower module 3, so as to achieve precision when opening and closing between the top module 4 and the lower module 3, avoid liquid leakage, and improve sealing;

[0042] Specifically, the adjacent sides of the plurality of connecting plates 201 are fixedly connected to the front and rear sides of the top module 4, and the side away from the plurality of connecting plates 201, that is, the side opposite to the adjacent connecting plate 201, is provided with a limiting groove 202 to realize the limiting and guiding functions; at the same time, the side away from the plurality of connecting plates 201 is evenly provided with fixing holes 203, and the existence of the fixing holes 203 is to provide additional fixing points between the connecting plates 201 and the top module 4 to enhance the firmness of the connection. The inner walls of the fixing holes 203 are all threaded so as to be threadedly connected with the fixing bolts 204. By accurately inserting the plurality of fixing bolts 204 into the corresponding fixing holes 203 and rotating the fixing bolts 204, a tight threaded connection is formed between the connecting plate 201 and the top module 4, thereby firmly fixing the connecting plate 201 to the front and rear sides of the top module 4; The inner wall of the positioning groove 202 is slidably connected with a sleeve 205. The sleeve 205 is designed to slide in the limiting groove 202, thereby achieving a certain range of motion and limiting effect. The inner wall of the sleeve 205 is also processed so that it can be slidably connected with the connecting bolt 206. The adjacent ends of multiple connecting bolts 206 all penetrate the inner wall of the sleeve 205 and continue to extend downward, and are finally threadedly connected to the front and rear sides of the lower module 3. In the actual assembly process, the sleeve 205 is first placed in the limiting groove 202, and then the connecting bolt 206 is inserted from one end of the sleeve 205 and penetrates the inner wall of the sleeve 205, and is finally threadedly connected to the lower module 3. In this way, not only the connection between the top module 4 and the lower module 3 is realized, but also the cooperation of the limiting groove 202, the sleeve 205 and the connecting bolt 206 can achieve precision control of the two during the opening and closing process.

[0043] Reference Figure 1、 Figure 2 and Figure 4 , the front and rear sides of the top of the bottom plate 1 are fixedly connected with support plates 18, the tops of the two support plates 18 are set at the bottom of the lower module 3, the bottom of the bottom plate 1 is threadedly connected with multiple reinforcement bolts 12, the tops of the multiple reinforcement bolts 12 are threadedly connected to the bottom of the support plate 18, and the left sides of the two support plates 18 are fixedly connected with a protection plate 16. The left side of the protection plate 16 is provided with multiple screw holes 17, and the inner walls of the multiple screw holes 17 are threadedly connected with bolts 19;

[0044] Specifically, support plates 18 are fixed on both the front and rear sides of the top of the base plate 1. The top of the support plate 18 is set at the bottom of the lower module 3 to ensure the stability of the entire structure and uniform load distribution. The bottom of the base plate 1 is threadedly connected with multiple reinforcement bolts 12. The reinforcement bolts 12 not only play a fixing role, but are also connected to the threaded holes opened at the bottom of the support plates 18 through their top ends; in addition, a protective plate 16 is fixedly connected to the left side of the two support plates 18. The protective plate 1 can prevent external factors from damaging internal components, thereby improving the durability of the overall structure.

[0045] Working principle: First, the motor housing 9 is placed between the lower mold core 6 and the upper mold core 5. The molten colloid enters the mold through the main channel 7, then passes through the branch channel 10, and finally flows between the motor housing 9 and the forming block 8, forming the required white sealing ring. After cooling and shaping, the overmolding is achieved. The ejector pin 13 can eject the motor housing 9 when the mold is opened to achieve rapid demoulding. At the same time, the runner ejector rod 14 can eject the residual colloid inside the mold, ensuring the cleanliness of the mold and smooth use next time.

[0046] In addition, the connecting plate 201 is arranged on the front and rear sides of the top module 4. By inserting multiple fixing bolts 204 into the fixing holes 203 and rotating the fixing bolts 204 to fix the connecting plate 201 on the front and rear sides of the top module 4, the sleeve 205 is set in the limiting groove 202, and the connecting bolt 206 is inserted into the sleeve 205 and passed through the sleeve 205 to be fixed to the lower module 3, so as to achieve precision in opening and closing between the top module 4 and the lower module 3.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor housing seal ring forming die, comprising a base plate (1), a lower die block (3) and a top die block (4), characterized in that: The top of the lower module (3) is fixedly connected to a lower mold core (6), the bottom of the top module (4) is fixedly connected to an upper mold core (5), a main flow channel (7) is provided inside the upper mold core (5), a molding block (8) is installed at the bottom of the upper mold core (5), a motor housing (9) is provided on the top of the lower mold core (6), a branch flow channel (10) is provided on the top of the lower mold core (6), a bullhorn gate (11) is provided at the bottom of the molding block (8), a plurality of ejector pins (13) are slidably connected inside the lower module (3), a runner ejector rod (14) is slidably connected inside the lower module (3), and a limiting mechanism (2) is provided on the top of the base plate (1).

2. The motor housing seal ring forming mold according to claim 1, characterized in that: The limiting mechanism (2) comprises a plurality of connecting plates (201), the adjacent sides of the plurality of connecting plates (201) are fixedly connected to the front and rear sides of the top module (4), the side away from the plurality of connecting plates (201) is provided with a limiting groove (202), the side away from the plurality of connecting plates (201) is provided with a fixing hole (203), the inner walls of the plurality of fixing holes (203) are threadedly connected to a fixing bolt (204), the inner walls of the plurality of limiting grooves (202) are slidably connected to a sleeve (205), the inner wall of the sleeve (205) is slidably connected to a connecting bolt (206), and the adjacent ends of the plurality of connecting bolts (206) pass through the inner wall of the sleeve (205) and are threadedly connected to the front and rear sides of the lower module (3).

3. The motor housing seal ring forming mold according to claim 1, characterized in that: The front and rear sides of the top of the bottom plate (1) are both fixedly connected to support plates (18), and the tops of the two support plates (18) are both arranged on the bottom of the lower module (3).

4. The motor housing seal ring forming mold according to claim 1, characterized in that: The bottom of the base plate (1) is threadedly connected to a plurality of reinforcing bolts (12), and the top ends of the plurality of reinforcing bolts (12) are threadedly connected to the bottom of the support plate (18).

5. The motor housing seal ring forming mold according to claim 1, characterized in that: A feed port (15) is provided on the top of the top module (4), and the feed port (15) is connected to the main flow channel (7).

6. The motor housing seal ring forming mold according to claim 3, characterized in that: The left sides of the two support plates (18) are fixedly connected to a protection plate (16), and the left sides of the protection plates (16) are each provided with a plurality of screw holes (17), and the inner walls of the plurality of screw holes (17) are threadedly connected to bolts (19).

7. The motor housing seal ring forming mold according to claim 1, characterized in that: An air pump (21) is installed on the top of the bottom plate (1), and a top column (20) is installed on the top of each bottom plate (1).

8. The motor housing seal ring forming mold according to claim 3, characterized in that: The tops of the two support plates (18) are fixedly connected to a limiting rod (22), and a connector (23) is installed on the left side of the top module (4).

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