A rapid adjustable insert positioning mold structure
By introducing movable and adjustable positioning height limit blocks and through-slot structures into injection molds, the problem of low production efficiency of various rotating shaft components is solved, enabling rapid mold adjustment and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU ZHENHUA HUALIAN ELECTRONICS
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-12
AI Technical Summary
Existing injection molds cannot efficiently produce a variety of shaft components of different sizes, and the mold replacement and heating processes are time-consuming, resulting in high production costs and low efficiency.
The design incorporates adjustable positioning height limit blocks and a through-slot structure. The position of the positioning height limit blocks can be adjusted through observation holes, enabling multiple uses for a single mold and reducing mold replacement and heating time.
This technology enables the production of various shaft components without disassembling the mold, reducing production costs and improving production efficiency.
Smart Images

Figure CN224348282U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection mold technology, specifically relating to a mold structure for quick-adjusting insert positioning. Background Technology
[0002] The pivot assembly is a functional connection for a series of rotary switches. In daily production, it is necessary to produce pivot assemblies of different sizes. In fact, the 076, 077, 078, 079, and 080 pivot assemblies all consist of two positioning plates, one pivot, and a plastic body. Except for the length of the pivot and the angle between the pivot and the positioning plates, the other dimensions and structures are the same (see...). Figures 1-5 The production volume of the above five parts is relatively small, and they need to be produced in the same batch. Designing and manufacturing five injection molds would be costly and labor-intensive. The part requires side core pulling and has many inserts. The existing injection molding machine has a small tonnage, and the mold cannot produce five parts at the same time in one mold. The injection molding material is reinforced polycarbonate, which requires a mold temperature of 90-120℃. If five mold inserts are made, after producing one type of part, the mold is disassembled, and then the inserts are replaced before producing another type of part. The mold needs to be reheated, which greatly reduces production efficiency.
[0003] Publication number CN113276355A discloses a constant-temperature mold for injection molding with multiple limiting functions. By installing triggering components and multiple limiting components internally, during normal installation of the inner mold, it is simply placed inside the second combined mold. Through a cleverly designed linkage structure, it achieves rapid and synchronous multiple limiting functions for the inner mold during placement and installation, greatly improving the stability of the inner mold during injection molding and effectively enhancing injection molding quality. However, this mold cannot solve the problems existing in the production of this part. Utility Model Content
[0004] To address the aforementioned problems, this utility model aims to provide a mold structure for quickly adjusting insert positioning.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-adjustable insert positioning mold structure, including a fixed mold insert with a through groove, a movable and adjustable positioning height limit block in the through groove, the fixed mold insert being set on a fixed template, and an observation hole being provided on the fixed mold insert.
[0006] Preferably, the fixed mold insert includes a main body in the shape of a cuboid, the upper surface of the main body is provided with mounting grooves arranged along the length direction, observation holes are provided at both ends of the mounting grooves, and the lower end surface of the main body is provided with a through groove along the width direction.
[0007] Preferably, the observation hole and the through slot are connected.
[0008] Preferably, the positioning height limiting block includes a main body extending in a long strip shape, and a stepped connecting part is movably provided at one end of the main body along the length direction, the height of the connecting part being freely adjustable.
[0009] Preferably, the upper surface of the main body has multiple mounting holes.
[0010] Preferably, the height limiting block is placed horizontally in the through groove of the fixed mold insert, and the connecting part of the height limiting block is on the same line as the center line of the observation hole.
[0011] Compared with the prior art, this utility model has the following advantages: The positioning height limiting block of the insert is designed and processed into a movable position on the mold, and a through hole is designed and processed on the fixed mold insert to allow observation and adjustment of the positioning height limiting block. Both the fixed mold insert and the fixed mold plate are provided with two through slots, one mold and two positions. After producing one or two products, the positioning height limiting block can be manually adjusted to the required position to continue producing other products, which greatly saves the time of changing molds and heating the mold. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the 076 rotating shaft assembly in this utility model;
[0014] Figure 2 This is a schematic diagram of the 077 rotating shaft assembly in this utility model;
[0015] Figure 3 This is a schematic diagram of the 078 rotating shaft assembly in this utility model;
[0016] Figure 4 This is a schematic diagram of the 079 rotating shaft assembly in this utility model;
[0017] Figure 5 This is a schematic diagram of the 080 rotating shaft assembly in this utility model;
[0018] Figure 6 This is a three-dimensional schematic diagram of the mold insert in this utility model;
[0019] Figure 7 This is a schematic diagram of the positioning height limiting block structure in this utility model;
[0020] Figure 8This is a schematic diagram of the assembly of the positioning height limiting block and the fixed mold insert in this utility model;
[0021] Figure 9 This is a three-dimensional schematic diagram of the mold structure in this utility model;
[0022] Figure 10 This is a schematic diagram of the assembly of the positioning height limiting block and the fixed template in this utility model;
[0023] In the diagram, 1-positioning height limit block, 2-fixed mold insert, 3-fixed template, a-through groove, b-observation hole. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.
[0025] By making the insert positioning mold insert movable according to the part structure, five different parts can be produced without disassembling the mold, greatly saving production costs and improving production efficiency. The principle is that the injection-molded parts of the five products produced are the same size, differing only in the height of the insert and the angle between the insert and the injection body. The positioning height limiting block 1 of the insert is designed and machined as movable on the mold. Two through slots for the positioning height limiting block 5 to enter and exit are designed and machined on the fixed mold insert 2 and fixed mold plate 3, and its position is observed through the observation hole b. With one mold and two positions, after producing one or two products, the positioning height limiting block 5 can be manually adjusted to the required position to continue producing other products, greatly saving time on mold changes and mold heating.
[0026] Addressing the manufacturing costs and production efficiency issues of 076, 077, 078, 079, and 080 shaft assembly molds, this patent aims to innovate the injection mold structure by providing a mold structure with rapidly adjustable insert positioning, thereby reducing R&D costs and improving production efficiency. (Refer to...) Figure 7 The positioning height limiting block 1, a mold insert for positioning the insert, is designed to be movable and adjustable. The positioning height limiting block 1 includes a main body extending in a long strip shape, with a stepped connecting part movably provided at one end of the main body along the length direction. The height of the connecting part can be freely adjusted. Multiple mounting holes are distributed on the upper surface of the main body.
[0027] Reference Figure 6 , Figure 8 and Figure 10The fixed mold insert 2 includes a rectangular main body. The upper surface of the main body has mounting grooves arranged along its length, and observation holes are provided at both ends of the mounting grooves. The lower end surface of the main body has a through groove a along its width. The observation holes and the through groove a are connected. The connecting part of the positioning height limiting block 1 is disposed within the through groove a.
[0028] Example:
[0029] After the mold is installed on the injection molding machine and adjusted (in the mold-closed state), the mold opens, inserts are inserted in sequence, the switch is turned on, the mold closes, and the injection molding machine nozzle injects molten material into the mold cavity. After pressure holding, cooling, and solidification, the mold opens under the action of the mold-closing mechanism to eject the product. After producing one type of part, different parts can be produced by manually adjusting the positioning height limit block to the appropriate position.
[0030] Compared to fixed positioning insert structures, the adjustable positioning height limit block of this invention solves the problem of needing to manufacture multiple molds or multiple mold inserts to produce the 076, 077, 078, 079, and 080 rotating shaft assemblies, reducing production costs and improving production efficiency. The key to this invention is the innovative design of an adjustable mold insert positioning component. This mold structure can also be applied to other series of parts with similar characteristics.
[0031] The above provides a detailed description of the quickly adjustable insert positioning mold structure provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.
Claims
1. A quick-adjustable insert positioning mold structure, characterized in that: It includes a fixed mold insert (2) with a through groove (a), and an adjustable positioning height limit block (1) is provided in the through groove (a). The fixed mold insert (2) is set on the fixed template (3), and an observation hole (b) is provided on the fixed mold insert (2).
2. The quickly adjustable insert positioning mold structure according to claim 1, characterized in that: The fixed mold insert (2) includes a main body in the shape of a cuboid. The upper surface of the main body is provided with mounting grooves arranged along the length direction. Observation holes are provided at both ends of the mounting grooves. The lower end surface of the main body is provided with a through groove (a) along the width direction.
3. The quickly adjustable insert positioning mold structure according to claim 1, characterized in that: The observation hole (b) and the through slot (a) are connected.
4. The quickly adjustable insert positioning mold structure according to claim 1, characterized in that: The positioning height limiting block (1) includes a main body that extends in a long strip shape, and a stepped connecting part is movably provided at one end of the main body along the length direction. The height of the connecting part can be freely adjusted.
5. The quickly adjustable insert positioning mold structure according to claim 4, characterized in that: The upper surface of the main body has multiple mounting holes.
6. The quickly adjustable insert positioning mold structure according to claim 1, characterized in that: The positioning height limiting block (1) is horizontally placed in the through groove (a) of the fixed mold insert (2), and the connecting part of the height limiting block (5) and the center line of the observation hole (b) are the same.