A connector production mold for an automobile

Abstract

The application discloses a connector production mold and method for automobile, comprising a lower base plate, a lower mold plate, a lifting frame, a material cup plate and a plunger plate, the lower mold plate is connected with a mold core, wherein the lifting frame drives a plurality of groups of half bars through lifting, each group of half bars comprises a half left bar and a half right bar used in combination, forming an outer mold wrapped outside the mold core; the material cup plate is connected with an upper mold at a position corresponding to the mold core, the upper mold, the outer mold and the mold core jointly form a mold cavity for generating a connector, and the plunger plate extrudes liquid rubber into the mold cavity to produce a product; the production mold adopts a layered multi-plate structure, the steps are easy to control, a separable diamond half bar structure is adopted, which is beneficial to overall demolding of the product, the mold is transferred and injected in an up-down mode, the liquid rubber in the mold cavity is tightly vulcanized with the metal framework under pressure, the rubber is not easy to separate from the metal framework, the production quality and service life of the product are improved, the lifting and pressing type operation has a simple operation process, the production efficiency is high, and the product performance is stable.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to a mold and method for manufacturing automotive connectors. Background Technology

[0002] Automotive connectors are used to connect fluid seals in automobiles. They rely on the contact friction between the elastic material in the connector and the seal to achieve sealing. Connectors produced with good mold structure have stable performance, and the rubber and metal skeleton are not easy to delaminate. The connector size is accurate, and the connection between the connector and the seal is not easy to shift. The parting line of the product can effectively ensure the assemblability of the product and improve the service life of the product.

[0003] A search revealed no publicly available automotive connector production molds that are identical or similar to this invention. In existing automotive connector production equipment known to the inventor, integral mold vulcanization is often used, which makes it difficult to demold the product after molding. Furthermore, there is no pressure during the vulcanization of the rubber and metal skeleton, resulting in incomplete bonding between the rubber and the metal skeleton. This leads to easy separation of the rubber and the metal skeleton, affecting the use of subsequent products. Summary of the Invention

[0004] The purpose of this invention is to provide a mold and method for manufacturing automotive connectors, which solves the problems of difficult demolding after product molding, low product molding accuracy, and incomplete vulcanization bonding between rubber and metal skeleton, thus affecting product quality and service life.

[0005] The objective of this invention can be achieved through the following technical solution: A mold for manufacturing automotive connectors, comprising, arranged sequentially from bottom to top:

[0006] A lower pad, the lower pad being used to provide a support plate surface for mold mounting;

[0007] A lower template is connected to a lower pad plate, and the lower template is connected to multiple mold core groups, each mold core group including multiple mold cores;

[0008] The lifting frame is used to lift multiple sets of half-bars by raising and lowering. Each set of half-bars corresponds to a mold core group. Each set of half-bars includes a left half-bar and a right half-bar used in combination. Both the left and right half-bars have outer mold half-grooves corresponding to the mold core. When the lifting frame is raised, it moves away from the lower template, and the left and right half-bars separate from each other. When the lifting frame is lowered, it is against the lower template, and the left and right half-bars are close to each other. The outer mold half-grooves of the left and right half-bars are combined and fitted onto the outside of the mold core to form an outer mold covering the outside of the mold core.

[0009] The material cup plate is positioned so that it rests against the half strip when it descends and moves away from the half strip when it rises. The material cup plate has a material cup cavity, and an upper mold is connected to the material cup plate at a location corresponding to the mold core. The top surface of the upper mold is the bottom surface of the material cup cavity. The upper mold, outer mold, and mold core together form a mold cavity for generating the connector. The upper mold has an injection hole that connects the material cup cavity and the mold cavity.

[0010] A plunger plate is provided, which is attached to the cup plate when it descends and moves away from the cup plate when it rises. The plunger plate is connected to a plurality of plunger blocks corresponding to the cup cavity. When the plunger plate descends, the plunger blocks are pressed into the cup cavity, and the cup cavity and the mold cavity form a closed cavity. When the plunger plate rises, the plunger blocks are separated from the cup cavity.

[0011] Furthermore: both the left and right halves are slidably connected to the lifting frame, and the side of the left and right halves away from the outer mold half groove is a rhomboid surface, which includes a rhomboid top and a rhomboid bottom.

[0012] The lower template includes a lower positioning block 230, and the cup plate includes an upper positioning block 430.

[0013] When the lifting frame and the material cup plate descend, the rhomboid surfaces of the left and right halves are squeezed and constrained by the lower positioning block 230 and the upper positioning block 430 of the halves, and the left and right halves are spliced ​​together.

[0014] Furthermore: the plunger plate is connected to multiple guide posts a, and the cup plate has multiple guide post holes a corresponding to the guide posts a, and a guide sleeve a is provided in the guide post hole a; the guide sleeve is used to place the guide post a;

[0015] The material cup plate is connected to multiple guide posts b, and the lifting frame has multiple guide post holes b corresponding to the guide posts b. A guide sleeve b is provided in the guide post hole b; the guide sleeve b is used to place the guide post b.

[0016] The lower template is connected to multiple guide posts c, and the lifting frame has multiple guide post holes c corresponding to the guide posts c. A guide sleeve c is provided in the guide post hole c; the guide sleeve c is used to place the guide post c.

[0017] Furthermore: the plunger plate is connected to multiple high-strength springs, and the cup plate has multiple spring grooves corresponding to the high-strength springs.

[0018] Furthermore, the left and right halves of the mold have multiple countersunk screw holes on the side away from the outer mold half-groove, and the countersunk screw holes are threaded with shims.

[0019] Furthermore, each set of half strips also includes half positioning posts and half positioning holes that cooperate with each other. The half positioning posts and half positioning holes are used to position the half strips. When the half positioning post is connected to the left half strip, the half positioning hole is opened in the right half strip. When the half positioning post is connected to the right half strip, the half positioning hole is opened in the left half strip.

[0020] A method for manufacturing automotive connectors includes the following steps:

[0021] S1. Raise the plunger plate, material cup plate and lifting frame, separate the left and right halves of the mold core, and assemble a metal skeleton for each mold core.

[0022] S2, lowering the frame, the left and right halves of the half-frame are attached together, and the left and right halves of the half-frames ...

[0023] S3, the material cup plate is lowered, and the upper mold at the bottom of the material cup plate, together with the outer mold and the mold core, forms a mold cavity for generating the connector;

[0024] S4. Liquid rubber is injected into the material cup cavity;

[0025] S5. The plunger plate descends, and the plunger block squeezes the liquid rubber in the material cup cavity, injecting the liquid rubber into the mold cavity. The liquid rubber vulcanizes the metal skeleton to form the primary product.

[0026] S6. Raise the plunger plate, cup plate and lifting frame to separate the left and right haf bars and remove the primary product;

[0027] S7. Clean the burrs from the initial product to obtain the final product.

[0028] The beneficial effects of this invention are:

[0029] The production mold of this invention adopts a layered multi-plate structure, making the process easy to control. It uses a separable diamond-shaped half-bar structure, and the half-bar is lifted and separated as a whole in a lifting frame manner, which facilitates the overall demolding of the product. The injection pressure is transferred from top to bottom of the mold, and the liquid rubber in the mold cavity is tightly vulcanized and bonded to the metal skeleton under pressure. The rubber and the metal skeleton are not easy to separate, which improves the product quality and service life. The production mold structure fully integrates with the product characteristics, and the lifting and pressing operation is simple to operate, resulting in high production efficiency and stable product performance.

[0030] The production mold adopts a positioning design with multiple sets of guide pillars and guide pillar sleeves. The half-bar is positioned simultaneously with the upper mold and the lower mold plate, which can effectively lock the half-bar, ensure accurate positioning, and improve the mold forming precision, thereby improving product quality.

[0031] The half bar also includes a half bar positioning device. Through the half bar positioning device, the left half bar and the right half bar are accurately positioned to each other, the mold cavity will not be misaligned, and the molding accuracy is improved.

[0032] The diamond-shaped splitter design, with its left and right half-mold structure, facilitates product demolding. At the same time, the splitter can be positioned simultaneously with the material cup plate and the lower mold plate, effectively locking the splitter and ensuring uniform parting lines at the top and bottom of the product.

[0033] A strong spring is installed between the plunger plate and the cup plate, and a clamping position is reserved on the plunger plate. When the mold is ejected, the plunger plate and the upper template are more easily opened by the action of the equipment clamping and the strong spring, which shortens the mold processing and forming time and improves production efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the internal structure of a manufacturing mold for automotive connectors according to the present invention;

[0035] Figure 2 for Figure 1 The image shows a cross-sectional view along line AA of a mold used for manufacturing automotive connectors.

[0036] Figure 3 for Figure 1 The image shows a BB-direction sectional view of a mold for manufacturing automotive connectors.

[0037] Figure 4 for Figure 2 A schematic diagram of the layered structure;

[0038] Figure 5 This is a schematic diagram of the cross-sectional structure of one side of the lifting frame.

[0039] Figure 6 for Figure 1 Schematic diagram of component C.

[0040] C. Metal frame;

[0041] 100. Lower pad;

[0042] 200. Lower template; 210. Mold core assembly; 211. Mold core; 211a. Protruding edge; 220. Countersunk mold core hole; 230. Half-positioning block;

[0043] 300. Lifting frame; 310. Half-bar; 311. Left half-bar; 311a. Outer mold half-groove; 311b. Countersunk screw hole; 311c. Top of rhombus; 311d. Bottom of rhombus; 312. Right half-bar; 313. Outer mold; 314. Sliding block; 315. Half-positioning post; 330. Shim; 331. Threaded rod; 340. Sliding compartment; 341. Separating bolt;

[0044] 400, Material cup plate; 410, Material cup cavity; 420, Upper mold; 421, Injection hole; 430, Upper positioning block of the half-type mold; 440, Side block of the material cup plate;

[0045] 500. Plunger plate; 510. Plunger block; 520. Plunger plate side block;

[0046] 610. Guide post assembly a; 611. Guide post a; 612. Guide post hole a; 613. Guide sleeve a;

[0047] 620. Guide post assembly b; 621. Guide post b; 622. Guide post hole b; 623. Guide sleeve b;

[0048] 630, guide post assembly c; 631, guide post c; 632, guide post hole c; 633, guide sleeve c;

[0049] 640. Spring assembly S; 641. Heavy spring; 642. Bolt; 643. Spring groove;

[0050] 700. Mold cavity. Detailed Implementation

[0051] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0052] like Figure 1-6 As shown, this invention discloses a manufacturing mold for automotive connectors, comprising, from bottom to top, the following components arranged sequentially:

[0053] The lower pad 100 is used to provide a support plate surface for mold installation. The lower pad 100 is flat and serves as the base surface for mold production.

[0054] The lower template 200 is connected to the lower pad 100, which can be connected by thread or other fixed connection methods. The lower template 200 is connected to multiple mold core groups 210, and each mold core group 210 includes multiple mold cores 211.

[0055] The lifting frame 300 is used to lift multiple sets of half-bars 310 by raising and lowering. Each set of half-bars 310 corresponds to a mold core set 210. Each set of half-bars 310 includes a left half-bar 311 and a right half-bar 312 used in combination. Both the left half-bar 311 and the right half-bar 312 are provided with an outer mold half-groove 311a corresponding to the mold core 211. When the lifting frame 300 is raised, the lifting frame 300 moves away from the lower template 200, and the left half-bar 311 and the right half-bar 312 are separated from each other. When the lifting frame 300 is lowered, the lifting frame 300 is close to the lower template 200, and the left half-bar 311 and the right half-bar 312 are close to each other. The outer mold half-groove 311a of the left half-bar 311 and the right half-bar 312 are combined and fitted on the outside of the mold core 211 to form an outer mold 313 covering the outside of the mold core 211.

[0056] The cup plate 400 is lowered and abuts against the split strip 310; when the cup plate 400 is raised, it moves away from the split strip 310. The cup plate 400 has a cup cavity 410. The upper mold 420 is connected to the cup plate 400 at the corresponding position of the mold core 211. The top surface of the upper mold 420 is the bottom surface of the cup cavity 410. The upper mold 420, the outer mold 313, and the mold core 211 together form a mold cavity 700 for generating the connector. The upper mold 420 has a grouting hole 421, which connects the cup cavity 410 and the mold cavity 700.

[0057] The plunger plate 500 is attached to the cup plate 400 when it descends, and moves away from the cup plate 400 when it rises. The plunger plate 500 is connected to multiple plunger blocks 510 corresponding to the cup cavity 410. When the plunger plate 500 descends, the plunger blocks 510 are pressed into the cup cavity 410, and the cup cavity 410 and the mold cavity 700 form a closed cavity. When the plunger plate 500 rises, the plunger blocks 510 are separated from the cup cavity 410.

[0058] Example 1, as Figure 1 , 2 As shown in Figure 3, the lower pad 100 is flat and provides a support surface for the installation of other components.

[0059] The lower template 200 is threadedly connected to the lower pad 100. The lower template 200 has multiple countersunk core holes 220. The core 211 passes through the core 211 holes. The bottom of the core 211 has a protruding edge 211a. The protruding edge 211a is pressed and fixed by the countersunk core holes 220 and the lower pad 100, so that the core 211 and the lower template 200 maintain a stable connection.

[0060] Other fixed connection methods can also be adopted for the mold core 211 and the lower template 200, such as welding, but this is not conducive to the replacement of the mold core 211 after it is damaged.

[0061] The mold core 211 is divided into three mold core groups 210, and seven mold cores 211 are evenly distributed in each mold core group 210. The number of mold core groups 210 and the number of mold cores 211 in each group can be adjusted according to the scale of the mold.

[0062] The lifting frame 300, the material cup plate 400 and the plunger plate 500 are connected to a lifting device (not shown in the figure). The lifting device can independently control the raising and lowering of the lifting frame 300, the material cup plate 400 and the plunger plate 500.

[0063] The structure of the 300-degree lifting frame is as follows Figure 2 , 3 As shown in Figure 5, symmetrical sliding grooves are provided at both ends of the vertical half bar of the lifting frame 300. The two sliding grooves are separated by the dividing studs 341 to form four sliding compartments 340 respectively.

[0064] Both ends of the left half bar 311 and the right half bar 312 are connected to sliding blocks 314. The separating stud 341 is located between the two sliding blocks 314 at the same end of a set of half bars. The width of the sliding block 314 is smaller than the width of the left half bar 311 or the right half bar 312. When the left half bar 311 and the right half bar 312 are close together, they are not affected by the separating stud 341.

[0065] Setting the separator stud 341 ensures that when the left half bar 311 and right half bar 312 of the same group are separated, they are distributed at orderly intervals and will not be separated too far apart. When falling, it also ensures that the half bar is within the constraint range of the corresponding half lower positioning block 230.

[0066] The left bar 311 and the right bar 312 slide within the sliding compartment 340 by means of the sliding block 314.

[0067] Both the left half-groove 311 and the right half-groove 312 have seven outer mold half-grooves 311a corresponding to the mold core 211.

[0068] The side of the left half-groove 311 and the right half-groove 312 away from the outer mold half-groove 311a is a rhomboid surface, which includes the upper rhomboid 311c and the lower rhomboid 311d.

[0069] When the lifting frame 300 descends, the left half bar 311 and the right half bar 312 slide within the sliding chamber 340. The rhomboid lower part 311d of the left half bar 311 and the right half bar 312 is squeezed and constrained by the lower positioning block 230 of the lower template 200. The left half bar 311 and the right half bar 312 are close to each other. The outer mold half grooves 311a of the left half bar 311 and the right half bar 312 are spliced ​​together and fitted on the outside of the mold core 211 to form an integral outer mold 313 covering the outside of the mold core 211.

[0070] When the lifting frame 300 is raised, the left half bar 311 and the right half bar 312, along with the formed primary product, are raised together with the lifting frame 300. The left half bar 311 and the right half bar 312 can be separated manually or by using other tools to obtain the primary product.

[0071] like Figure 4 As shown, the cup plate 400 is located on the upper side of the lifting frame 300. The cup plate 400 has multiple cup cavities 410. The bottom of each cup cavity 410 is connected to an upper mold 420. When the cup plate 400 is close to the lifting frame 300, the upper mold 420, the outer mold 313 and the mold core 211 together form the mold cavity 700.

[0072] The material cup cavity 410 is connected to the mold cavity 700 through the grouting hole 421 opened in the upper mold 420.

[0073] When the core 211 is fitted with the metal skeleton A, the edge of the upper mold 420 presses against the upper side of the metal skeleton A, which can fix the metal skeleton A and prevent the metal skeleton A from shifting during rubber vulcanization.

[0074] The shape of the material cup cavity 410 can be cylindrical or square, and the shape of the plunger block 510 corresponding to the material cup cavity 410 is adjusted accordingly.

[0075] The material cup plate 400 also includes a half upper positioning block 430. When the material cup plate 400 descends, the half upper positioning block 430 squeezes each set of half strips 310, making the left half strip 311 and the right half strip 312 fit together more tightly, improving the accuracy and quality of the mold.

[0076] The material cup plate 400 is connected to the lifting device via the material cup plate side block 440.

[0077] like Figure 2 , 4 As shown: The plunger plate 500 is connected to multiple plunger blocks 510 corresponding to the material cup cavity 410. When the plunger plate 500 descends, the plunger blocks 510 are pressed into the material cup cavity 410 to squeeze the liquid rubber in the material cup cavity 410.

[0078] The plunger block 510 is identical to the material cup cavity 410, and the material cup cavity 410 and the mold cavity 700 form a closed cavity. The plunger block 510 squeezes the liquid rubber, causing the liquid rubber to be injected into the mold cavity 700 for vulcanization and molding.

[0079] The plunger plate 500 is connected to the lifting device via the plunger plate side block 520.

[0080] In Example 2, based on Example 1, a guide post assembly a610 is provided between the plunger plate 500 and the material cup plate 400, a guide post assembly b620 is provided between the material cup plate 400 and the lifting frame 300, and a guide post assembly c630 is provided between the lower template 200 and the lifting frame 300.

[0081] like Figure 1 , 2 As shown, the plunger plate 500 is connected to four guide posts a611, and the cup plate 400 has four guide post holes a612 corresponding to the guide posts a611.

[0082] Four guide pins a611 are symmetrically distributed at the four corners of the plunger plate 500. The guide pin hole a612 has a transition fillet at the end near the guide sleeve a613 to facilitate the insertion of the guide pin hole a612 into the guide sleeve a613.

[0083] A guide sleeve a613 is provided inside the guide post hole a612. The guide sleeve a613 and the guide post hole a612 are fixedly connected by means such as bonding, welding or threaded connection.

[0084] By using the cooperation of guide pin hole a612 and guide sleeve a613, the plunger plate 500 can maintain a stable position with the cup plate 400 when it descends.

[0085] The material cup plate 400 is connected to four guide posts b621, and the lifting frame 300 has four guide post holes b622 corresponding to the guide posts b621.

[0086] Four guide posts b621 are symmetrically distributed at the four corners of the material cup plate 400. The guide post hole b622 has a transition rounded corner at the end near the guide sleeve b623 to facilitate the insertion of the guide post hole b622 into the guide sleeve b623.

[0087] A guide sleeve b623 is provided inside the guide post hole b622. The guide sleeve b623 and the guide post hole b622 are fixedly connected by means such as bonding, welding or threaded connection.

[0088] By using the guide post hole b622 and the guide sleeve b623, the cup plate 400 can maintain a stable position with the lifting frame 300 when it descends.

[0089] The lower template 200 is connected to four guide posts c631, and the lifting frame 300 has four guide post holes c632 corresponding to the guide posts c631.

[0090] Four guide posts c631 are symmetrically distributed at the four corners of the lower template 200. The guide post hole c632 has a transition rounded corner at the end near the guide sleeve c633 to facilitate the insertion of the guide post hole c632 into the guide sleeve c633.

[0091] A guide sleeve c633 is provided inside the guide post hole c632. The guide sleeve c633 and the guide post hole c632 are fixedly connected by means such as bonding, welding or threaded connection.

[0092] By using the guide post hole c632 and the guide sleeve c633, the lifting frame 300 can maintain a stable position with the lower template 200 when it is lowered, thus improving the molding accuracy.

[0093] The number of guide pillars and guide pillar sleeves that fit together can be adjusted according to the needs of the production mold.

[0094] In Example 3, based on the above examples, a spring assembly s640 is provided between the cup plate 400 and the plunger plate 500.

[0095] like Figure 3 As shown, the plunger plate 500 is connected to four powerful springs 641, and the cup plate 400 has four spring grooves 643 corresponding to the powerful springs 641.

[0096] The upper end of the high-strength spring 641 is fixedly connected to the plunger plate 500 by bolt 642.

[0097] When the plunger plate 500 descends, the lower end of the powerful spring 641 falls into the spring groove 643 opened in the cup plate 400.

[0098] The number of strong springs 641 connected to the plunger plate 500 can be adjusted according to the needs of the production mold.

[0099] During demolding, the plunger plate 500 and the upper mold plate 420 are more easily opened by the action of the strong spring 641.

[0100] Example 4: Based on the above examples, a half-bar adjustment structure is added.

[0101] like Figure 4 As shown, the left half bar 311 and the right half bar 312 are provided with multiple countersunk screw holes 311b on the upper rhombus 311c and the lower rhombus 311d away from the outer mold half groove 311a. The countersunk screw holes 311b are used for threaded connection of the pad 330.

[0102] The shim 330 is fixedly connected to the threaded rod 331, and the threaded rod 331 is threadedly connected to the countersunk screw hole 311b. The degree to which the shim 330 is recessed into the countersunk screw hole 311b is controlled by the degree to which the threaded rod 331 is threadedly connected to the countersunk screw hole 311b.

[0103] When the outer side of the pad 330 is higher than the rhomboid surface, the left half bar 311 and the right half bar 312 are squeezed more fully by the upper half positioning block 430 and the lower half positioning block 230, and the left half bar 311 and the right half bar 312 fit more tightly. The amount of flash in the primary product is less, which can save materials and facilitate further processing of the primary product.

[0104] Example 5: Based on the above examples, a half strip positioning device is added.

[0105] like Figure 6 As shown, the positioning device includes a half positioning post 315 and a half positioning hole. The half positioning post 315 and the half positioning hole are used in groups. Preferably, there are no less than two groups of half positioning posts 315 and half positioning holes, which are located at both ends of the half strip 300 respectively.

[0106] When the half positioning pin 315 is connected to the left half bar 311, the half positioning hole is opened in the right half bar 312; when the half positioning pin 315 is connected to the right half bar 312, the half positioning hole is opened in the left half bar 311.

[0107] The half-positioning post 315 has a transition rounded corner to facilitate the insertion of the half-positioning post 315 into the half-positioning hole.

[0108] When the left half bar 311 and the right half bar 312 are assembled together, the half positioning pin 315 is inserted into the half positioning hole. The positioning of the half positioning pin 315 and the half positioning hole can prevent the left half bar 311 and the right half bar 312 from shifting when they are assembled, and prevent the mold cavity 700 from being misaligned, which would affect the molding process.

[0109] A method for manufacturing automotive connectors includes the following steps:

[0110] S1. Use the lifting device to raise the plunger plate 500, the material cup plate 400 and the lifting frame 300, separate the left half bar 311 and the right half bar 312 in each set of half bars 310, clean the mold, and set the metal skeleton A for each mold core 211.

[0111] After the mold core 211 is fitted with the metal skeleton A, the metal skeleton A and the mold core 211 maintain an appropriate gap to facilitate demolding.

[0112] S2. The lifting frame 300 is lowered using the lifting device. As the left half bar 311 and the right half bar 312 are lowered, they are squeezed by the lower positioning block 230 and come into contact with each other, so that the left half bar 311 and the right half bar 312 correspond to the outer mold half groove 311a to form the outer mold 313, which covers the outside of the mold core 211.

[0113] S3. The material cup plate 400 is lowered using a lifting device. The upper mold 420 at the bottom of the material cup plate 400, together with the outer mold 313 and the mold core 211, forms a mold cavity 700 for generating the connector.

[0114] S4. Liquid rubber is injected into the material cup cavity 410.

[0115] S5, the plunger plate 500, the plunger block 510 extrudes the liquid rubber in the material cup cavity 410, and injects the liquid rubber into the mold cavity 700. The liquid rubber vulcanizes the metal skeleton A to form the primary product.

[0116] S6. Raise the plunger plate 500, the material cup plate 400 and the lifting frame 300. The primary product rises simultaneously with the left half bar 311 and the right half bar 312. Separate the left half bar 311 and the right half bar 312 and remove the primary product.

[0117] S7. Clean the burrs from the initial product to obtain the final product.

[0118] The materials used in the production molds include the plunger plate 500, which is made of P20 pre-hardened plastic mold steel with a hardness of HRC28-30; it has good toughness and strength.

[0119] The material cup plate 400, lifting frame 300, lower template 200 and lower pad plate 100 are made of 718 steel with a hardness of HRC 38-42. They have high strength, good toughness and corrosion resistance in both high and low temperature environments.

[0120] The 310 halfbar is made of NAK80 steel with a hardness of HRC 44-48. NAK80 steel is a high-performance, high-precision, and high-grade mirror-finish plastic mold steel. It has stable performance, excellent polishing and carving properties, good machinability, good machinability and surface finish, and uniform hardness distribution.

[0121] The mold core 211 is made of SM1 steel with a hardness of HRC 44-48. It has good machinability, good corrosion resistance, and can be carburized.

[0122] The production mold of this invention adopts a layered multi-plate structure, with injection pressure transferred from top to bottom. The steps are easy to control. It adopts a separable diamond-shaped half-bar 310 structure, and the lifting frame 300 lifts the half-bar 310 as a whole, which is conducive to the overall demolding of the product. The production mold structure is combined with the product characteristics, makes full use of the equipment features and simplified operation process, resulting in high production efficiency and stable product performance.

[0123] The production mold adopts a positioning design with multiple sets of guide pillars and guide pillar sleeves. The half-bar 310, upper mold 420 and lower template 200 are positioned simultaneously, which can effectively lock the half-bar, ensure accurate positioning, high mold forming precision and improve product quality.

[0124] The diamond-shaped splitter 310 design facilitates product demolding. At the same time, the splitter 310 can be positioned simultaneously with the material cup plate 400 and the lower template 200, effectively locking the splitter 310 and ensuring uniform mold parting lines at the upper and lower ends of the product.

[0125] A strong spring 641 is installed between the plunger plate 500 and the cup plate 400, and a clamping position is reserved on the plunger plate 500. When the mold is removed, the plunger plate 500 and the upper mold 420 plate are more easily opened by the action of the equipment clamping and the strong spring 641, which shortens the mold processing and forming time and improves production efficiency.

[0126] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0127] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present 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. Therefore, they should not be construed as limitations on the present invention.

[0128] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0129] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0130] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

Claims

1. A mold for manufacturing automotive connectors, characterized in that: Including settings from bottom to top: A lower pad (100) is used to provide a support plate surface for mold mounting; The lower template (200) is connected to the lower pad (100), and the lower template (200) is connected to a plurality of mold core groups (210), each mold core group (210) including a plurality of mold cores (211). A lifting frame (300) is used to lift multiple sets of half-bars (310) by raising and lowering. Each set of half-bars (310) corresponds to a mold core group (210). Each set of half-bars (310) includes a left half-bar (311) and a right half-bar (312) used in combination. Both the left half-bar (311) and the right half-bar (312) are provided with an outer mold half-groove (311a) corresponding to the mold core (211). When the lifting frame (300) is raised, the lifting frame (300) moves away from the mold core (211). The lower template (200) has the left half strip (311) and the right half strip (312) separated from each other. When the lifting frame (300) is lowered, the lifting frame (300) is attached to the lower template (200), and the left half strip (311) and the right half strip (312) are close to each other. The outer mold half groove (311a) of the left half strip (311) and the right half strip (312) are combined and fitted on the outside of the mold core (211) to form an integral outer mold (313) covering the outside of the mold core (211). A cup plate (400) is provided, which is attached to the half strip (310) when it is lowered and moves away from the half strip (310) when it is raised; the cup plate (400) has a cup cavity (410) and an upper mold (420) is connected to the cup plate (400) at the corresponding part of the mold core (211); the top surface of the upper mold (420) is the bottom surface of the cup cavity (410); the upper mold (420), the outer mold (313) and the mold core (211) together form a mold cavity (700) for generating a connector; the upper mold (420) has a grouting hole (421) and the grouting hole (421) connects the cup cavity (410) and the mold cavity (700). A plunger plate (500) is provided. When the plunger plate (500) descends, it is attached to the cup plate (400). When the plunger plate (500) rises, the cup plate (400) moves away from the cup plate (400). The plunger plate (500) is connected to a plurality of plunger blocks (510) corresponding to the cup cavity (410). When the plunger plate (500) descends, the plunger blocks (510) are pressed into the cup cavity (410). The cup cavity (410) and the mold cavity (700) form a closed cavity. When the plunger plate (500) rises, the plunger blocks (510) are separated from the cup cavity (410). The left half bar (311) and the right half bar (312) are slidably connected to the lifting frame (300). The side of the left half bar (311) and the right half bar (312) away from the outer mold half groove (311a) is a rhomboid surface, which includes a rhomboid top surface (311c) and a rhomboid bottom surface (311d). The lower template (200) includes a lower positioning block (230), and the cup plate (400) includes an upper positioning block (430). When the lifting frame (300) and the cup plate (400) descend, the rhomboid surfaces of the left half bar (311) and the right half bar (312) are squeezed and constrained by the lower half positioning block (230) and the upper half positioning block (430), and the left half bar (311) and the right half bar (312) are spliced ​​together.

2. The automotive connector manufacturing mold according to claim 1, characterized in that: The plunger plate (500) is connected to a plurality of guide posts a (611), and the cup plate (400) has a plurality of guide post holes a (612) corresponding to the guide posts a (611). A guide sleeve a (613) is provided in the guide post hole a (612); the guide sleeve is used to place the guide post a (611). The cup plate (400) is connected to a plurality of guide posts b (621), and the lifting frame (300) has a plurality of guide post holes b (622) corresponding to the guide posts b (621). A guide sleeve b (623) is provided in the guide post hole b (622); the guide sleeve b (623) is used to place the guide post b (621). The lower template (200) is connected to a plurality of guide posts c (631), and the lifting frame (300) has a plurality of guide post holes c (632) corresponding to the guide posts c (631). A guide sleeve c (633) is provided in the guide post hole c (632); the guide sleeve c (633) is used to place the guide post c (631).

3. The automotive connector manufacturing mold according to claim 1, characterized in that: The plunger plate (500) is connected to a plurality of powerful springs (641), and the cup plate (400) has a plurality of spring grooves (643) corresponding to the powerful springs (641).

4. The automotive connector manufacturing mold according to claim 1, characterized in that: The left and right halves (311 and 312) of the halves are provided with multiple countersunk screw holes (311b) on the side away from the outer mold half groove (311a), and the countersunk screw holes (311b) are threaded with pads (330).

5. The automotive connector manufacturing mold according to claim 1, characterized in that: Each set of half strips (310) also includes half positioning pins (315) and half positioning holes that cooperate with each other. The half positioning pins (315) and half positioning holes are used to position the half strips (310). When the half positioning pins (315) are connected to the left half strip (311), the half positioning holes are opened in the right half strip (312). When the half positioning pins (315) are connected to the right half strip (312), the half positioning holes are opened in the left half strip (311).

6. A method for producing a mold for an automotive connector according to any one of claims 1 to 5, characterized in that: Includes the following steps: S1. Raise the plunger plate (500), cup plate (400) and lifting frame (300), separate the left half bar (311) and right half bar (312), and fit a metal skeleton (A) for each mold core (211); S2, the lowering frame (300), the left half bar (311) and the right half bar (312) are attached together, the left half bar (311) and the right half bar (312) correspond to the outer mold half groove (311a) to form the outer mold (313) covering the outside of the mold core (211); S3, the lowering cup plate (400), the bottom upper mold (420) of the cup plate (400) together with the outer mold (313) and the mold core (211) form a mold cavity (700) for generating the connector. S4. Liquid rubber is injected into the material cup cavity (410); S5, drop plunger plate (500), plunger block (510) extrudes liquid rubber in material cup cavity (410), injects liquid rubber into mold cavity (700), liquid rubber vulcanizes metal skeleton (A) to form primary product; S6. Raise the plunger plate (500), the cup plate (400) and the lifting frame (300), separate the left half bar (311) and the right half bar (312), and take out the primary product; S7. Clean the burrs from the initial product to obtain the final product.

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