Slender mold capable of preventing eccentricity of core
By using structures such as binding columns, sliders, reinforcement blocks and oil locking rings in injection molds, the problem of eccentricity of the core of the elongated parts is solved, the stability of the core and the utilization rate of lubricating oil are improved, and the injection molding process is ensured. accuracy and quality.
Patent Information
- Application Number
- CN202323258658.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-11-30
AI Technical Summary
When conventional injection molds produce cores of elongated components, the core is eccentric due to uneven impact force of glue, resulting in skewed molding shape and poor stability.
A slender mold is designed to prevent the core from eccentricity, using a binding column to penetrate the core center, a slider provides support, a reinforcement block increases stability, and an oil lock ring reduces lubricant loss. These structural measures are used to prevent the core deviation and increase. Lubricant utilization rate.
Effectively prevent core eccentricity, improve the stability of molded products, and reduce the loss rate of lubricant, ensuring the accuracy and quality of the injection molding process.
Smart Images
Figure CN222178518U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of core production equipment, in particular to a slender mold for preventing the core from being eccentric. Background Art
[0002] Injection mold, injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise size. Injection molding is a processing method used in mass production of certain complex-shaped parts.
[0003] The core of the corresponding mold that forms the slender component is in a slender shape. During molding, glue is introduced from both sides. The impact of the glue or uneven glue introduction on both sides will cause the core to be eccentric, which in turn causes the molding shape of the long cavity product to be skewed, resulting in the problem of poor stability of the core of slender components produced by conventional injection molds.
[0004] Therefore, we propose a slender mold to prevent the core from being eccentric to solve the above problem. Utility Model Content
[0005] The utility model aims to solve the problem of poor core stability of conventional injection molds for producing slender parts, and proposes a slender mold for preventing the core from being eccentric.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A slender mold for preventing core eccentricity comprises a mold, a mold core is installed inside the mold, and a restraining column is fixedly installed on the mold core. When injecting glue, the restraining column is inserted into the center of the core to prevent the core from deviating during molding and improve the stability of the core.
[0008] Preferably, a slider is installed in the mold. When injecting glue, the slider is pressed against the core to provide support for the core. When the injection amount reaches the corresponding position of the slider, the slider retreats to allow the position it originally supported to be filled with plastic, which facilitates the molding of products.
[0009] Preferably, a reinforcement block is fixedly connected to the corners of the mold to increase the stability of the corners of the mold.
[0010] Preferably, a handle is fixedly connected to the outer end of the mold core, so as to facilitate hand-holding operation to install or remove the mold core.
[0011] Preferably, a first positioning block is fixedly connected inside the mold, and the mold core is clamped on the first positioning block. The first positioning block is used to facilitate positioning of the mold core.
[0012] Preferably, a second positioning block is fixedly connected in the mold, and the second positioning block is clamped in the mold core to facilitate the positioning of the mold core.
[0013] Preferably, an oil lock ring is fixedly connected to the opening of the mold to reduce the loss rate of lubricating oil.
[0014] Preferably, the oil lock ring comprises an annular shell, a leather ring and a sponge ring, wherein one leather ring is fixedly connected to the upper end of the sponge ring, the other leather ring is fixedly connected to the lower end of the sponge ring, the sponge ring is fixedly connected to the inner end of the annular shell, and the leather ring is fixedly connected to the annular shell. When the target guide column passes through the sponge ring and the leather ring, the sponge ring is used to store lubricating oil, and the leather ring is used to seal excess lubricating oil in the sponge ring. When the lubricating oil of the target guide column is lost, the sponge ring is used to apply lubricating oil to the target guide column to reduce the loss rate of lubricating oil.
[0015] In summary, the technical effects and advantages of the utility model are as follows:
[0016] 1. When injecting glue, use the restraining column to insert into the center of the core to prevent the core from deviating during molding and improve the stability of the core.
[0017] 2. When injecting glue, the slider is pressed against the core to provide support for the core. When the amount of glue injected reaches the corresponding position of the slider, the slider retreats to allow the plastic to be filled into the position it originally supported, which is convenient for molding products.
[0018] 3. When the target guide column passes through the sponge ring and the leather ring, use the sponge ring to store the lubricating oil, and use the leather ring to seal the excess lubricating oil in the sponge ring. When the lubricating oil of the target guide column is lost, use the sponge ring to apply the lubricating oil to the target guide column to reduce the loss rate of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the core and slider structure of the utility model;
[0021] Figure 3 It is a schematic diagram of the core and the binding column structure of the utility model;
[0022] Figure 4 This is a schematic diagram of the core and slider structure of the utility model;
[0023] Figure 5 This is a schematic diagram of the oil lock ring structure of the utility model.
[0024] In the figure: 1. mold; 2. core; 3. slider; 4. restraining column; 5. reinforcement block; 6. oil lock ring; 7. handle; 8. mold core; 9. first positioning block; 10. second positioning block; 61. annular shell; 62. leather ring; 63. sponge ring. DETAILED DESCRIPTION
[0025] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.
[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The present embodiment provides a slender mold for preventing core eccentricity, which comprises a mold 1, a mold core 8 is installed inside the mold 1, a core 2 is embedded inside the mold 1, and a restraining column 4 is fixedly installed on the mold core 8. The restraining column 4 is slidably inserted on the long rod of the core 2, and the restraining column 4 passes through the core 2.
[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , a slider 3 is installed in the mold 1. The slider 3 is slidably embedded in the core 2. When injecting glue, the slider 3 presses on the core 2 to provide support for the core 2. When the injection amount reaches the corresponding position of the slider 3, the slider 3 retreats to allow the plastic to be filled in the position it originally supported to form the product.
[0028] Reference Figure 1 The corners of the mold 1 are fixedly connected with reinforcement blocks 5. The reinforcement blocks 5 are used to increase the stability of the corners of the mold 1.
[0029] Reference Figure 1 The outer end of the mold core 8 is fixedly connected with a handle 7. The handle 7 is used for holding and operating the mold core 8.
[0030] Reference Figure 1 A first positioning block 9 is fixedly connected in the mold 1, and the mold core 8 is clamped on the first positioning block 9. The first positioning block 9 is used to locate the position of the mold core 8.
[0031] Reference Figure 1 A second positioning block 10 is also fixedly connected in the mold 1. The second positioning block 10 is clamped in the mold core 8.
[0032] Reference Figure 1 The opening of the mold 1 is fixedly connected with an oil lock ring 6. The oil lock ring 6 is used to reduce the loss rate of lubricating oil.
[0033] Reference Figure 1 and Figure 5The oil lock ring 6 includes an annular shell 61, a leather ring 62 and a sponge ring 63. The annular shell 61 is fixedly mounted on the mold 1, one of the leather rings 62 is fixedly connected to the upper end of the sponge ring 63, and the other leather ring 62 is fixedly connected to the lower end of the sponge ring 63. The sponge ring 63 is fixedly connected to the inner end of the annular shell 61, and the leather ring 62 is fixedly connected to the annular shell 61. When the target guide column passes through the sponge ring 63 and the leather ring 62, the sponge ring 63 is used to store lubricating oil, and the leather ring 62 is used to seal excess lubricating oil in the sponge ring 63. When the lubricating oil of the target guide column is missing, the sponge ring 63 is used to apply the lubricating oil to the target guide column.
[0034] Working principle: When injecting glue, the slider 3 is pressed against the core 2 to provide support for the core 2. When the amount of injected glue reaches the corresponding position of the slider 3, the slider 3 retreats to allow the plastic to be filled in the position it originally supported, which is convenient for molding products. The restraining column 4 is inserted in the center of the core 2 to prevent the core 2 from deviating during molding and improve the stability of the core 2.
[0035] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.
[0036] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. A slender mold for preventing core eccentricity, comprising a mold (1), wherein a mold core (8) is installed inside the mold (1), Features: A core (2) is embedded in the mold (1), a restraining column (4) is fixedly mounted on the mold core (8), the restraining column (4) is slidably inserted on the long rod of the core (2), and the restraining column (4) passes through the core (2).
2. A slender mold for preventing core eccentricity according to claim 1, Features: A slider (3) is installed in the mold (1).
3. A slender mold for preventing core eccentricity according to claim 1, Features: Reinforcement blocks (5) are fixedly connected to the corners of the mold (1).
4. A slender mold for preventing core eccentricity according to claim 1, Features: The outer end of the mold core (8) is fixedly connected to a handle (7).
5. A slender mold for preventing core eccentricity according to claim 1, Features: A first positioning block (9) is fixedly connected inside the mold (1), and the mold core (8) is clamped on the first positioning block (9).
6. A slender mold for preventing core eccentricity according to claim 1, Features: A second positioning block (10) is also fixedly connected inside the mould (1).
7. A slender mold for preventing core eccentricity according to claim 1, Features: An oil lock ring (6) is fixedly connected to the opening of the mold (1).
8. A slender mold for preventing core eccentricity according to claim 7, Features: The oil lock ring (6) comprises an annular shell (61), a leather ring (62) and a sponge ring (63), wherein one leather ring (62) is fixedly connected to the upper end of the sponge ring (63), and the other leather ring (62) is fixedly connected to the lower end of the sponge ring (63); the sponge ring (63) is fixedly connected to the inner end of the annular shell (61); and the leather ring (62) is fixedly connected to the annular shell (61).