Small water inlet shrinkage three-plate mold mechanism

Abstract

The utility model relates to the field of mold technology, in particular to a small water inlet shrinkage three-plate mold mechanism, including a mother template, a stripper plate, a pull rod assembly and a limit assembly, the bottom surface of the mother template is provided with a fixed plate, a side of the fixed plate away from the mother template is installed with a separation plate, the stripper plate is arranged between the mother template and the fixed plate, a pad matching the stripper plate is provided at a position of the fixed plate close to the stripper plate, a runner gate is distributed in the middle of the stripper plate, a molding position connected to the runner gate is distributed on the top surface of the mother template, a convergence port is provided at a position of the bottom surface of the stripper plate close to the runner gate, the pull rod assembly includes a pull rod head and a pull rod sleeve, a convergence port is provided at a position of the bottom surface of the stripper plate close to the runner gate, the convergence port can provide stronger injection pressure when the hot melt plastic flow flows toward the molding position, while reducing the runner length, the convergence port can ensure the quality of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a small water inlet shrinking three-plate mold mechanism. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts.

[0003] The mold mainly realizes the processing of the shape of the object by changing the physical state of the molded material. The mold has a specific contour or inner cavity shape. The use of a contour shape with a cutting edge can make the blank separate (punch) according to the shape of the contour line. The use of the inner cavity shape can make the blank obtain a corresponding three-dimensional shape. The mold generally consists of a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When separated, the workpiece is taken out, and when combined, the blank is injected into the mold cavity for forming; at the same time, the mold can be divided into different types according to the different objects to be processed and produced.

[0004] In traditional mold design, a three-plate mold design is usually adopted. Although the three-plate mold design ensures that the plastic can overcome resistance when filling the cavity, achieve a good filling effect and the ability to replicate mold details, and ensure injection pressure, the three-plate mold has a longer flow channel and therefore requires a longer cooling time during use, so the molding cycle is relatively long. Therefore, in order to solve the above-mentioned defects, the present application proposes a small water inlet retractable three-plate mold mechanism. Utility Model Content

[0005] The purpose of the utility model is achieved in the following ways: a small water inlet shrinking three-plate mold mechanism includes a mother template, a stripping plate, a pull rod assembly and a limit assembly, the pull rod assembly is connected to the stripping plate, the bottom surface of the mother template is provided with a fixed plate, a side of the fixed plate away from the mother template is installed with a separation plate, the stripping plate is arranged between the mother template and the fixed plate, a pad matching the stripping plate is provided at a position of the fixed plate close to the stripping plate, the middle part of the stripping plate is distributed with a runner gate, and the top surface of the mother template is distributed with a runner gate The forming position is connected to each other, and a convergence port is provided on the bottom surface of the stripping plate near the runner gate. The tie rod assembly includes a tie rod head and a tie rod sleeve. The tie rod head is movably installed at the four corners of the top surface of the mother template, and the tie rod head passes through the mother template to be connected with the stripping plate. The tie rod sleeve is movably installed on the bottom surface of the separation plate and the tie rod sleeve is aligned with the tie rod head. The end of the tie rod sleeve close to the tie rod head extends toward the direction of the tie rod head. Limiting tie rods are fixed on both sides of the fixed plate, and both sides of the separation plate are movably connected with the limiting tie rods.

[0006] In the above description, a further solution is provided, in which the top of the limit pull rod is positioned and connected to the two sides of the fixing plate through fixing bolts, and fixing holes matching the fixing bolts are provided on both sides of the fixing plate; the fixing bolts and the fixing holes are used to provide the installation limiting effect of the limit pull rod.

[0007] In the above description, a further scheme is provided, in which a movable through groove is provided in the middle part of the limiting pull rod, and the positions of the movable through grooves in the space on both sides of the separation plate are provided with mounting threaded holes, and a mounting bolt is provided on the side of the movable through groove away from the mounting threaded hole, and the screw rod of the mounting bolt is threadedly connected with the mounting threaded hole, and the screw head of the mounting bolt is abutted against the side of the separation plate away from the mounting threaded hole; the movable through groove can provide a movable effect of the separation plate.

[0008] In the above description, a further scheme is made, in which a separation runner is provided on the top surface of the pad near the runner gate, the branch runner is connected to the runner gate, a flow plate is installed and connected to the bottom surface of the pad, and the side of the flow plate away from the pad is connected to the injection plate; the separation runner is used to provide the function of hot melt plastic flowing to different molding positions when it flows in.

[0009] In the above description, a further scheme is made, in which the bottom surface of the injection plate is provided with a flow hole, the flow hole extends in the direction of the separation channel and the flow hole is connected with the diversion channel, and an injection groove is provided on the bottom surface of the injection plate near the flow hole, and the injection groove is connected with the flow hole; the flow hole is used for the circulation of hot melt plastic.

[0010] In the above description, a further scheme is made, in which a separation groove is opened between the fixed plate and the separation plate, and the two sides of the separation groove are connected to the two sides of the fixed plate, and a plate placement groove is opened in the middle of the fixed plate and the separation plate; the separation groove can facilitate better separation between the fixed plate and the separation plate when opening the mold, and the plate placement groove is used to provide an installation area for the internal plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is: by reducing the thickness of the stripper plate and the pad, and at the same time providing a convergence port on the bottom surface of the stripper plate near the runner gate, the convergence port can provide stronger injection pressure when the hot melt plastic flows toward the molding position, thereby achieving the goal of reducing the thickness of the stripper plate and the pad, reducing the runner length, and at the same time ensuring the quality of the product through the convergence port. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model of a small water inlet shrinking three-plate mold mechanism;

[0013] Figure 2 It is a schematic diagram of the structure decomposition of the small water inlet shrinking three-plate mold mechanism of the utility model;

[0014] Figure 3It is a structural decomposition schematic diagram of the utility model of the small water inlet shrinking three-plate mold mechanism from another perspective;

[0015] Figure 4 It is a cross-sectional view of the utility model's small water inlet shrinking three-plate mold mechanism;

[0016] Figure 5 It is a cross-sectional view of the utility model's small water inlet shrinking three-plate mold mechanism from another perspective;

[0017] In the figure: 1-mother template, 2-stripping plate, 3-fixing plate, 4-separation plate, 5-backing plate, 6-runner gate;

[0018] 7-forming position, 8-closing mouth, 9-pull rod head, 10-pull rod sleeve, 11-limit pull rod, 12-fixing bolt;

[0019] 13-fixing hole, 14-movable through groove, 15-installation threaded hole, 16-installation bolt, 17-separation flow channel; 18-circulation plate, 19-injection plate, 20-circulation hole, 21-injection groove, 22-separation groove, 23-plate placement groove. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] For this example, please refer to Figure 1-Figure 5 The specifically implemented small water inlet shrinking three-plate mold mechanism comprises a mother template 1, a stripping plate 2, a tie rod assembly and a limit assembly, wherein the tie rod assembly is connected to the stripping plate 2, a fixing plate 3 is provided on the bottom surface of the mother template 1, a separation plate 4 is installed on the side of the fixing plate 3 away from the mother template 1, the stripping plate 2 is arranged between the mother template 1 and the fixing plate 3, a pad 5 matching the stripping plate 2 is provided at a position of the fixing plate 3 close to the stripping plate 2, a runner gate 6 is distributed in the middle of the stripping plate 2, a molding position 7 connected to the runner gate 6 is distributed on the top surface of the mother template 1, A convergence port 8 is provided on the bottom surface of the stripping plate 2 near the runner gate 6. The tie rod assembly includes a tie rod head 9 and a tie rod sleeve 10. The tie rod head 9 is movably mounted on the four corners of the top surface of the mother template 1. The tie rod head 9 passes through the mother template 1 to be connected to the stripping plate 2. The tie rod sleeve 10 is movably mounted on the bottom surface of the separation plate 4 and the tie rod sleeve 10 is aligned with the tie rod head 9. One end of the tie rod sleeve 10 close to the tie rod head 9 extends toward the direction of the tie rod head 9. Limiting rods 11 are fixed on both sides of the fixed plate 3, and both sides of the separation plate 4 are movably connected with the limiting rods 11.

[0022] The top of the limiting pull rod 11 is positioned and connected to the two sides of the fixing plate 3 through fixing bolts 12 , and fixing holes 13 matching the fixing bolts 12 are provided on the two sides of the fixing plate 3 .

[0023] A movable through slot 14 is provided in the middle of the limiting pull rod 11, and mounting threaded holes 15 are provided at the positions of the movable through slots 14 in the space on both sides of the separation plate 4. A mounting bolt 16 is provided on the side of the movable through slot 14 away from the mounting threaded hole 15. The screw rod of the mounting bolt 16 is threadedly connected with the mounting threaded hole 15, and the screw head of the mounting bolt 16 abuts against a side of the separation plate 4 away from the mounting threaded hole 15.

[0024] A separation channel 17 is provided on the top surface of the pad 5 near the runner gate 6 , and the separation channel is connected to the runner gate 6 . A flow plate 18 is installed and connected to the bottom surface of the pad 5 , and an injection plate 19 is connected to the side of the flow plate 18 away from the pad 5 .

[0025] The bottom surface of the injection plate 19 is provided with a flow hole 20 , which extends toward the separation channel 17 and is communicated with the diversion channel. The bottom surface of the injection plate 19 is provided with an injection groove 21 near the flow hole 20 , and the injection groove 21 is communicated with the flow hole 20 .

[0026] A separation groove 22 is provided between the fixed plate 3 and the separation plate 4 , and both sides of the separation groove 22 are connected to both sides of the fixed plate 3 . A plate placement groove 23 is provided in the middle of the fixed plate 3 and the separation plate 4 .

[0027] The working process of the utility model is as follows: after the mold is injection molded, the fixed plate 3 and the separation plate 4 are separated by the existing technology. During separation, the pull rod sleeve 10 is driven to move, and the fixed plate 3 and the separation plate 4 continue to separate under the ejection action. When the pull rod sleeve 10 is separated, the pull rod head 9 and the stripping plate 2 lose support, and the stripping plate 2 and the pull rod head 9 move downward, thereby realizing the separation of the product and the material head formed by the convergence port 8, and continuing to separate until one end of the movable through groove 14 provided on the side pull rod is in contact with both sides of the separation plate 4 and the mounting bolts 16, and after the contact, the robot can take out the material head.

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A three-plate mold mechanism with a small water inlet and a stripper plate, comprising a mother mold plate, a stripper plate, a tie rod assembly and a limit assembly, wherein the tie rod assembly is connected to the stripper plate, and is characterized in that: The bottom surface of the mother template is provided with a fixed plate, and a separation plate is installed on a side of the fixed plate away from the mother template. The stripping plate is arranged between the mother template and the fixed plate, and a pad matching the stripping plate is provided at a position of the fixed plate close to the stripping plate. The middle part of the stripping plate is provided with a runner gate, and the top surface of the mother template is provided with a molding position which is connected with the runner gate. A convergence port is provided at a position of the bottom surface of the stripping plate close to the runner gate. The tie rod assembly includes a tie rod head and a tie rod sleeve. The tie rod head is movably installed at the four corners of the top surface of the mother template, and the tie rod head passes through the mother template to be connected with the stripping plate. The tie rod sleeve is movably installed on the bottom surface of the separation plate and the tie rod sleeve is aligned with the tie rod head. The end of the tie rod sleeve close to the tie rod head extends toward the direction of the tie rod head. Limiting tie rods are fixed on both sides of the fixed plate, and both sides of the separation plate are movably connected with the limiting tie rods.

2. The small water inlet shrinking three-plate mold mechanism according to claim 1 is characterized in that: The top of the limit pull rod is positioned and connected with the two sides of the fixing plate through fixing bolts, and the two sides of the fixing plate are provided with fixing holes matching with the fixing bolts.

3. The small water inlet shrinking three-plate mold mechanism according to claim 1 is characterized in that: A movable through groove is provided in the middle of the limiting pull rod, and installation threaded holes are provided at the positions of the movable through grooves in the space on both sides of the separation plate. A mounting bolt is provided on the side of the movable through groove away from the mounting threaded hole, and the screw rod of the mounting bolt is threadedly connected with the mounting threaded hole, and the screw head of the mounting bolt abuts against a side of the separation plate away from the mounting threaded hole.

4. The small water inlet shrinking three-plate mold mechanism according to claim 1 is characterized in that: A separation channel is provided on the top surface of the pad near the runner gate, and the separation channel is connected to the runner gate. A flow plate is installed and connected to the bottom surface of the pad, and an injection plate is connected to the side of the flow plate away from the pad.

5. The small water inlet shrinking three-plate mold mechanism according to claim 4 is characterized in that: The bottom surface of the injection plate is provided with a flow hole, the flow hole extends toward the separation channel and is communicated with the diversion channel, and the bottom surface of the injection plate is provided with an injection groove near the flow hole, and the injection groove is communicated with the flow hole.

6. The small water inlet shrinking three-plate mold mechanism according to claim 1 is characterized in that: A separation groove is provided between the fixed plate and the separation plate, and two sides of the separation groove are connected to two sides of the fixed plate. Plate placement grooves are provided in the middle of the fixed plate and the separation plate.

Images