Plugging mechanism and forming die comprising same

Abstract

The utility model discloses a plugging mechanism and a forming die comprising the plugging mechanism, the plugging mechanism is used in the forming die, one or more runners are formed in a cavity of the forming die, the plugging mechanism comprises a driving mechanism, a plugging piece and plugging plates, the number of the plugging plates is matched with the number of the runners, and the driving mechanism drives the plugging piece to rotate. The blocking piece blocks the rear side of the forming mold, the blocking plate is installed in the blocking piece, and the driving mechanism drives the blocking plate to block the rear end of the corresponding runner. The plugging plate structure matched with the flow channels in number is involved, the power mechanism is used for driving the plugging plates to act, the number of the plugging plates can be adjusted according to the number of the flow channels of produced workpieces, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molding dies, in particular to a blocking mechanism and a molding die comprising the blocking mechanism. Background Art

[0002] In the process of processing a workpiece based on a molding mold, it is generally necessary to set a certain cavity in the molding mold, which is used to form the workpiece. In some scenarios, if only one cavity is involved, its production efficiency is low and cannot meet the production needs. Therefore, multiple cavities are formed in the molding mold, and these cavities are recorded as runners. Because if the runners are blocked and corresponding blocking mechanisms are set according to the specifications and dimensions of the product, it is a problem that cannot be avoided by the existing technology.

[0003] In the prior art, a corresponding number of flow channels are generally set on the mold core or insert directly according to the shape of the workpiece, and no blocking mechanism is involved. This will cause a problem. If the size of the workpiece is slightly adjusted, the mold core or insert needs to be redesigned, and the reuse rate is poor.

[0004] The design of the flow channel determines the flow path of the molten material in the mold, and the blocking of the flow channel is directly related to the molding quality and production efficiency of the mold. However, traditional blocking methods often have problems such as complex operation and poor blocking effect, which makes it difficult to meet the high-precision and high-efficiency requirements of modern industrial production.

[0005] Specifically, traditional plugging mechanisms often use manual operation or simple mechanical structures, which makes it difficult to achieve simultaneous plugging of multiple flow channels, and the plugging accuracy and stability are difficult to guarantee. At the same time, due to the complex operation, it takes a lot of manpower and time, resulting in low production efficiency. In addition, traditional plugging mechanisms often lack intelligent and automated functions and cannot adapt to the needs of modern industrial production for intelligent manufacturing. Utility Model Content

[0006] The utility model aims to provide a blocking mechanism and a molding die including the blocking mechanism, which can adaptively adjust the number of blocking plates according to the number of flow channels to adapt to the simultaneous processing of multiple workpieces.

[0007] To achieve the above-mentioned purpose, the first aspect of an embodiment of the utility model discloses a sealing mechanism, which is used in a molding mold, wherein one or more flow channels are formed in the mold cavity of the molding mold, and the sealing mechanism includes a driving mechanism, a sealing member and a sealing plate, the number of the sealing plates is adapted to the number of the flow channels, the sealing member is sealed at the rear side of the molding mold, the sealing plate is installed in the sealing member, and the driving mechanism drives the sealing plate to seal the rear end of the corresponding flow channel.

[0008] In the first aspect of the utility model, as a preferred embodiment, the driving mechanism includes a power device, a connecting rod and a push-pull plate, and the power device pushes the push-pull plate and the blocking member to move through the connecting rod so that the front end of the blocking plate extends into the rear end of the flow channel.

[0009] In the first aspect of the utility model, as a preferred embodiment, the push-pull plate is fixedly connected to the blocking member, and the front end of the connecting rod is inserted into the rear end of the push-pull plate.

[0010] In the first aspect of the utility model, as a preferred embodiment, a groove is provided at the rear end of the push-pull plate, and the groove includes a first part and a second part, the first part and the second part are connected and the width of the first part is greater than the width of the second part, and a boss is provided at the front end of the connecting rod, the diameter of the boss is greater than the diameter of the connecting rod, and the diameter of the boss is greater than the width of the second part, the boss is inserted in the first part, and the front end of the connecting rod is located in the second part.

[0011] In the first aspect of the utility model, as a preferred embodiment, the driving mechanism further includes a fixing plate, and the power device is mounted on the molding die through the fixing plate.

[0012] In the first aspect of the utility model, as a preferred embodiment, the rear end of the blocking plate is provided with a limit block extending downward, the blocking member is provided with a through groove, the rear end of the through groove is provided with a limit groove adapted to the limit block, the front end of the blocking plate extends through the through groove into the flow channel, and the limit block is located in the limit groove.

[0013] The second aspect of the utility model discloses a molding die, which comprises a die body and the blocking mechanism described in the first aspect of the utility model, wherein one or more flow channels are formed in the die cavity of the die body.

[0014] In the second aspect of the utility model, as a preferred embodiment, the mold body includes a mold core and an injection plate, the mold core includes an upper mold core and a lower mold core, the upper mold core and the lower mold core cooperate with each other to form the flow channel therebetween, the injection plate and the sealing mechanism are respectively located at the front and rear ends of the mold core, an injection port is formed in the middle of the injection plate, and a feed port is formed at the front end of the mold core, and the injection port is connected to the flow channel through the feed port.

[0015] In the second aspect of the utility model, as a preferred embodiment, the upper mold core includes an upper mold core body and an upper insert embedded in the upper mold core body, the lower mold core includes a lower mold core body and a lower insert embedded in the lower mold core body, the positions of the upper mold core body and the lower mold core body are adapted to each other, the positions of the upper insert and the lower insert are adapted to each other, the cavity is formed between the upper insert and the lower insert, and the cavity is composed of one or more flow channels.

[0016] In the second aspect of the utility model, as a preferred embodiment, the mold body also includes an upper mold body and a lower mold body, the upper mold core is located on the inner side of the upper mold body, the lower mold core is located on the inner side of the lower mold body, and the sealing mechanism is fixed to the rear end of the upper mold body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model designs a blocking plate structure that matches the number of flow channels and utilizes a power mechanism to drive the movement of the blocking plate. The number of blocking plates can be adjusted according to the number of flow channels of the production workpiece, thereby improving production efficiency.

[0019] 2. Adjust the length of the front end of the blocking plate entering the flow channel according to the size of the workpiece to reduce or avoid the need to redesign the mold itself due to the size of the workpiece, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a molding die in one direction of an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the molding die in another direction of an embodiment of the utility model;

[0022] Figure 3 for Figure 1 A cross-sectional view of

[0023] Figure 4 It is a schematic diagram of the matching structure of the blocking mechanism and the lower mold in an embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the blocking mechanism of an embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the matching structure of the push-pull plate, the blocking member and the blocking plate in an embodiment of the utility model;

[0026] Figure 7 for Figure 6 Schematic diagram of the decomposition structure;

[0027] Figure 8It is a schematic structural diagram of a blocking member according to an embodiment of the utility model.

[0028] Among them: 10, upper mold body; 11, upper mold body; 12, upper insert; 20, lower mold body; 21, lower mold body; 22, lower insert; 30, feed port; 41, power device; 42, connecting rod; 43, push-pull plate; 431, groove; 44, blocking piece; 4411, through groove; 4412, limit groove; 442, mounting hole; 45, blocking plate; 451, blocking front end; 452, limit block; 46, fixing plate; 461, first fixing bolt; 47, second fixing bolt; 51, upper injection plate; 52, lower injection plate; 60, runner. DETAILED DESCRIPTION

[0029] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] Please refer to Figure 1-3As shown, a blocking mechanism is applied to a molding die, and the molding die can form one or more flow channels 60, and the flow channels 60 are used to mold corresponding workpieces. The shapes and sizes of the flow channels 60 can be the same or different. Corresponding to the flow channels 60, the blocking mechanism is equipped with a corresponding number of blocking plates 45, which are installed on the blocking member 44. The blocking plates 45 are distributed along the length direction of the blocking member 44, that is, along the X-axis direction or the Y-axis direction of the molding die. Each blocking plate 45 corresponds to a flow channel 60, and the size of the blocking plate 45 is adapted to the size of the workpiece molded by the corresponding flow channel 60. Driven by the driving mechanism, the blocking plate 45 extends into the flow channel 60 or is taken out of the flow channel 60.

[0034] The blocking mechanism realizes effective blocking of a single or multiple flow channels 60 in the molding die by designing the blocking plate 45 to match the number of flow channels 60. This design not only improves the accuracy and reliability of blocking, but also ensures that the slurry can flow along the preset path during the molding process, avoiding material leakage and waste, thereby improving product quality and production efficiency.

[0035] The slurry in the embodiment of the utility model is a semi-solid raw material. For the exhaust operation of the air in the cavity during the injection process, exhaust holes can be provided on the upper mold body, and each flow channel 60 corresponds to one or more exhaust holes.

[0036] The blocking mechanism uses a driving mechanism to drive the blocking plate 45 to perform the blocking operation, realizing the automation and intelligence of the blocking process, and the driving mechanism can adjust the forward distance of the blocking plate 45 according to the size of the workpiece. This greatly reduces the complexity and difficulty of manual operation, reduces the errors caused by human factors, and improves the consistency and stability of the blocking. At the same time, the automated operation also significantly improves production efficiency and reduces production costs.

[0037] In addition, the plugging member 44 is closely matched with the rear side of the molding die, ensuring the tightness and reliability of the plugging. At the same time, the plugging plate 45 is installed in the plugging member 44, making the entire plugging mechanism more compact and stable, and the number of the plugging plates 45 can be adaptively adjusted according to the number of the flow channels 60, which is easy to install and maintain.

[0038] The driving mechanism mainly includes a power device 41, a connecting rod 42 and a push-pull plate 43. The power mechanism can be implemented by a linear motor, a cylinder, etc. The push rod of the linear motor or the cylinder is fixedly connected to the connecting rod 42, or a certain matching structure is used to achieve synchronous movement.

[0039] For example, please refer to Figure 3As shown, the synchronous movement of the two can be achieved through a connecting sleeve, that is, a connecting sleeve is set at the matching part of the push rod and the connecting rod 42, and the matching part of the two is set as a convex ring that matches with the connecting sleeve, and the synchronous movement of the two is achieved based on the matching structure of the convex ring and the connecting sleeve.

[0040] The connecting rod 42 is used to drive the push-pull plate 43 to make a reciprocating motion, so that the blocking plate 45 can be extended into the rear end of the flow channel 60 or pulled out from the rear end of the flow channel 60 under the drive of the driving mechanism. The coordinated design of the connecting rod 42, the push-pull plate 43, the blocking member 44 and the blocking plate 45 can enable the power device 41 to accurately push the push-pull plate 43 and the blocking member 44 to move through the connecting rod 42, so that the front end of the blocking plate 45 can smoothly extend into the rear end of the flow channel 60, achieve accurate blocking, and ensure the molding size of the workpiece. Moreover, this design method realizes a simple but compact driving mechanism structure, making the entire blocking mechanism more stable and reliable, easy to install and maintain, which also reduces the cost of use and improves the durability of the mechanism.

[0041] For details, please refer to Figure 4-8 As shown, the push-pull plate 43 is fixedly connected to the blocking member 44, and the front end of the connecting rod 42 is plugged into the rear end of the push-pull plate 43, so that the power device 41 drives the push-pull plate 43 and the blocking member 44 to move synchronously, and then drives the blocking plate 45 matched with the blocking member 44 to move synchronously. The fixed connection between the push-pull plate 43 and the blocking member 44 can be achieved by locking the two by a second fixing bolt 47.

[0042] The way in which the connecting rod 42 is inserted into the push-pull plate 43 can be similar to the way in which the push rod and the connecting rod 42 cooperate. Figure 3 , 5 and Figure 6 As shown, a groove 431 is provided at the rear end of the push-pull plate 43, and the groove 431 passes through the upper and lower end surfaces of the push-pull plate 43. At the same time, the groove 431 can be divided into a first part and a second part based on the size, wherein the first part and the second part are connected and the width of the first part is greater than the width of the second part. A boss is provided at the front end of the connecting rod 42, and the boss is adapted to the first part. At the same time, the diameter of the boss is greater than the diameter of the connecting rod 42, and the diameter of the boss is greater than the width of the second part. The boss is inserted into the first part. At this time, the front end of the connecting rod 42 is located in the second part, and the power device 41 can drive the push-pull plate 43 to move synchronously through the connecting rod 42.

[0043] The design of the groove 431 at the rear end of the push-pull plate 43, especially the first and second parts which are wide to narrow, not only provides a stable insertion space for the boss at the front end of the connecting rod 42, but also ensures that the boss is accurately positioned in the groove 431 and is not easy to shake. This design effectively prevents the connecting rod 42 from slipping or dislocating during the movement of the push-pull plate 43, thereby enhancing the stability of the entire driving mechanism.

[0044] Secondly, the diameter of the boss is larger than the diameter of the connecting rod 42, so that when the boss is inserted into the first part, it can generate greater friction, further ensuring that the connection between the connecting rod 42 and the push-pull plate 43 is firm and reliable. This design not only improves the force transmission efficiency of the mechanism, but also reduces the risk of failure caused by loose connection.

[0045] In addition, the layout of the boss plugged into the first part and the front end of the connecting rod 42 located in the second part makes the entire connection structure compact and easy to assemble. This design not only simplifies the assembly process and reduces production costs, but also improves the overall performance and reliability of the mechanism.

[0046] In order to facilitate the replacement of the blocking plate 45 or the removal of the blocking plate 45, in a preferred embodiment of the present utility model, please refer to Figure 7 and 8 As shown, a downwardly extending limit block 452 is provided at the rear end of the blocking plate 45, a through groove 4411 is provided on the blocking member 44, a limit groove 4412 matched with the limit block 452 is provided at the rear end of the through groove 4411, and the front end of the blocking plate 45 extends through the through groove 4411 to the flow channel 60, and the limit block 452 is located in the limit groove 4412.

[0047] During installation, the blocking plates 45 corresponding to each flow channel 60 are first inserted into the corresponding through grooves 4411, and the limit blocks 452 are located in the limit grooves 4412. At this time, the rear end face of the blocking plate 45 is flush with the rear end face of the blocking member 44. When the blocking member 44 is fixedly installed on the front end face of the push-pull plate 43, the direction of each blocking plate 45 can be made the same as the moving direction of the push-pull plate 43, ensuring that the front end of the blocking plate 45 (referred to as the blocking front end 451) is tilted and placed in the corresponding flow channel 60.

[0048] The blocking mechanism adopts an innovative limiting structure between the blocking plate 45 and the blocking member 44. By setting a downwardly extending limiting block 452 at the rear end of the blocking plate 45 and setting a limiting groove 4412 on the blocking member 44 that is compatible with the limiting block 452, accurate positioning and firm fixation of the blocking plate 45 are achieved.

[0049] This limiting structure ensures that the blocking plate 45 can accurately and stably extend into the rear end of the flow channel 60 for blocking when pushed by the driving mechanism, avoiding the problem of blocking failure caused by position deviation or shaking. This not only improves the accuracy and reliability of blocking, but also ensures the normal operation of the molding mold and the stability of product quality.

[0050] In addition, the limiting structure simplifies the installation and removal process of the blocking plate 45, reduces maintenance costs and time costs. The operator can easily adjust the relative position of the limiting block 452 and the limiting groove 4412 to quickly install and remove the blocking plate 45, thereby improving work efficiency.

[0051] Moreover, when the push-pull plate 43 and the blocking member 44 are fixedly installed, the rear end surface of the blocking plate 45 is squeezed to ensure the horizontal setting of the blocking plate 45 and avoid tilting in the flow channel 60 or being higher or lower than the bottom surface of the flow channel 60.

[0052] In order to fix the driving mechanism, the driving mechanism also includes a fixing plate 46, which installs the power device 41 on the molding mold. Specifically, one end of the fixing plate 46 is fixedly connected to the power device 41, and the other end of the fixing plate 46 is installed on the upper mold body through a first fixing bolt 461. A mounting hole 442 that cooperates with the first fixing bolt 461 is provided on the mold body. Of course, in other embodiments, it can also be on the upper mold core.

[0053] First, the fixing plate 46 serves as a bridge between the power device 41 and the molding die, ensuring that the power device 41 can be firmly mounted on the die. This design avoids operational errors and performance degradation caused by shaking or displacement of the power device 41, and ensures the stability and durability of the plugging mechanism during long-term operation.

[0054] Moreover, the use of the fixing plate 46 also simplifies the installation process of the power device 41, reduces the installation difficulty and cost, enables the power device 41 to be quickly and accurately fixed at a specified position, improves production efficiency, and reduces the risk of failure caused by improper installation.

[0055] In addition, the structural design of the fixing plate 46 generally has certain versatility and adjustability, so that the blocking mechanism can adapt to molding dies of different models and specifications. This design improves the adaptability and flexibility of the mechanism.

[0056] Embodiment 2

[0057] Please refer to Figure 1-4 As shown, a molding mold includes a mold body and a sealing mechanism disclosed in an embodiment. One or more flow channels 60 are formed in the mold cavity of the mold body, and the sealing mechanism is used to seal each flow channel 60.

[0058] Specifically, the mold body may include an upper mold body 10, a lower mold body 20, an upper mold core located inside the upper mold body 10, and a lower mold core located inside the lower mold body 20. The upper mold core and the upper mold body 10 are preferably fixedly connected, or can be clamped, etc. Similarly, the lower mold body 20 and the lower mold core are preferably also fixedly connected. The power device 41 of the blocking mechanism is fixedly connected to the upper mold body 10 through a fixing plate 46.

[0059] In order to facilitate the design or replacement of the mold cavity, in a preferred embodiment of the present invention, the upper mold core may include an upper mold core body 11 and an upper insert 12 located in the upper mold core body 11, and the lower mold core may include a lower mold core body 21 and a lower insert 22 located in the lower mold core body 21. The upper mold body 10 cooperates with the lower mold body 20, the upper mold core body 11 cooperates with the lower mold core body 21, and the upper insert 12 cooperates with the lower insert 22. The mold cavity is set between the upper insert 12 and the lower insert 22. The mold cavity may be composed of one or more flow channels. If there are multiple flow channels 60, there is no connection relationship between these flow channels 60, that is, each is independent and is used to form corresponding workpieces respectively.

[0060] The sealing mechanism is located at the rear end of the mold body, and a feed port 30 is formed at the front end of the mold body, that is, between the upper mold body 10, the lower mold body 20, and the front ends of the upper mold core body 11 and the lower mold core body 21. At the same time, the area between the front ends of the upper mold body 10 and the lower mold body 20 is also connected to the upper injection plate 51 and the lower injection plate 52, respectively, and an injection port is formed between the upper injection plate 51 and the lower injection plate 52. The injection port is connected to each flow channel 60 through the feed port 30, so that when injecting, slurry can be injected into each flow channel 60 at the same time.

[0061] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A plugging mechanism, used in a molding die, wherein one or more flow channels are formed in the mold cavity of the molding die, characterized in that: The sealing mechanism includes a driving mechanism, a sealing part and a sealing plate. The number of the sealing plates matches the number of the flow channels. The sealing part is sealed at the rear side of the forming mold. The sealing plate is installed in the sealing part. The driving mechanism drives the sealing plate to seal the rear end of the corresponding flow channel.

2. The blocking mechanism according to claim 1, characterized in that: The driving mechanism comprises a power device, a connecting rod and a push-pull plate. The power device pushes the push-pull plate and the blocking member to move through the connecting rod, so that the front end of the blocking plate extends into the rear end of the flow channel.

3. The blocking mechanism according to claim 2, characterized in that: The push-pull plate is fixedly connected to the blocking member, and the front end of the connecting rod is plugged into the rear end of the push-pull plate.

4. The blocking mechanism according to claim 3, characterized in that: A groove is provided at the rear end of the push-pull plate, and the groove includes a first part and a second part. The first part and the second part are connected and the width of the first part is greater than the width of the second part. A boss is provided at the front end of the connecting rod, and the diameter of the boss is greater than the diameter of the connecting rod, and the diameter of the boss is greater than the width of the second part. The boss is inserted into the first part, and the front end of the connecting rod is located in the second part.

5. The blocking mechanism according to claim 2, characterized in that: The driving mechanism also includes a fixing plate, and the power device is installed on the forming mold through the fixing plate.

6. The blocking mechanism according to any one of claims 1 to 5, characterized in that: A downwardly extending limit block is arranged at the rear end of the blocking plate, a through slot is arranged on the blocking member, a limit slot matched with the limit block is arranged at the rear end of the through slot, the front end of the blocking plate extends into the flow channel through the through slot, and the limit block is located in the limit slot.

7. A molding die, characterized in that: It comprises a mold body and the blocking mechanism according to any one of claims 1 to 6, wherein one or more flow channels are formed in the mold cavity of the mold body.

8. The molding die according to claim 7, characterized in that: The mold body includes a mold core and an injection plate. The mold core includes an upper mold core and a lower mold core. The upper mold core and the lower mold core cooperate with each other to form the flow channel. The injection plate and the sealing mechanism are respectively located at the front and rear ends of the mold core. An injection port is formed in the middle of the injection plate, and a feed port is formed at the front end of the mold core. The injection port is connected to the flow channel through the feed port.

9. The molding die according to claim 8, characterized in that: The upper mold core includes an upper mold core body and an upper insert embedded in the upper mold core body, and the lower mold core includes a lower mold core body and a lower insert embedded in the lower mold core body. The positions of the upper mold core body and the lower mold core body are adapted to each other, and the positions of the upper insert and the lower insert are adapted to each other. The cavity is formed between the upper insert and the lower insert, and the cavity is composed of one or more flow channels.

10. The molding die according to claim 8, characterized in that: The mold body also includes an upper mold body and a lower mold body, the upper mold core is located on the inner side of the upper mold body, the lower mold core is located on the inner side of the lower mold body, and the blocking mechanism is fixed to the rear end of the upper mold body.

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