A plastic mold with replaceable core

Abstract

The utility model discloses a plastic mould of quick replacement mould core belongs to plastic mould technical field, a plastic mould of quick replacement mould core of the utility model, including upper mould, lower mould and quick -mounting mould core, is installed with the pressing plate between upper mould and lower mould, the lower extreme center of quick -mounting mould core is provided with fixed magnetic block, and the upper end surface of lower mould is provided with spring electromagnet. The utility model solves the problem that the plastic mould in prior art is complicated in operation and structure during actual use, and influences the subsequent replacement work, when the quick -mounting mould core needs to be disassembled, the electromagnet switch is opened, the magnetic pole of spring electromagnet is adjusted, the spring electromagnet lifts the quick -mounting mould core, so that the quick -mounting mould core is separated from the lower mould, and the maintenance and repair work is facilitated, so that the quick -mounting mould core of different types is replaced, and the long -term work is adapted.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, specifically a plastic mold with a quick-change mold core. Background Technology

[0002] After prolonged use, the mold core inside traditional plastic molds will experience wear and tear, making it impossible to produce qualified plastic parts. Since the mold core and mold are designed as a single unit and cannot be disassembled separately, it is necessary to remake the mold, which increases the manufacturing cost of the mold.

[0003] Chinese Patent CN221417158U discloses a plastic mold with an easy-to-change mold core, relating to the field of plastic mold technology. It includes a base plate and vertical rods. Two vertical rods are fixedly mounted on both sides of the upper surface of the base plate. A top plate is fixedly mounted at the upper end of the two vertical rods. A hydraulic cylinder is fixedly mounted on the upper surface of the top plate. The piston rod of the hydraulic cylinder extends to the bottom of the top plate, and an upper mold is fixedly mounted at the end of the piston rod. Vertical plates are fixedly mounted on both sides of the upper surface of the base plate. A rotating rod is rotatably mounted between the two vertical plates. A rotating block is fixedly sleeved on the rod wall of the rotating rod. Mounting grooves are formed on both sides of the rotating block. A mold core is engaged inside the mounting groove. An insertion hole is formed at the bottom of the mounting groove. An insertion rod is fixedly mounted at the bottom of the mold core, and the insertion rod is inserted into the corresponding insertion hole. This patent enables time-saving and labor-saving replacement of the mold core, facilitating the production of different types of products.

[0004] In actual use, the plastic molds described in the above patents are cumbersome to disassemble and have complex structures, which affects subsequent replacement work; therefore, they do not meet the current needs. In response, we have proposed a plastic mold with a quick-change mold core. Utility Model Content

[0005] The purpose of this invention is to provide a plastic mold with a quick-change mold core, which solves the problem mentioned in the background art that the operation of disassembling the mold core is cumbersome and the structure is complex, which affects the subsequent replacement work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold with a quick-change mold core, comprising an upper mold, a lower mold, and a quick-release mold core, wherein the quick-release mold core is disposed on the upper end face of the lower mold, the upper mold is mounted above the lower mold, and a pressure plate is installed between the upper mold and the lower mold, a fixed magnetic block is disposed at the lower end center of the quick-release mold core, and a spring electromagnet is disposed on the upper end face of the lower mold.

[0007] Preferably, guide slide rods are provided on both sides of the lower mold, and the guide slide rods pass through the upper mold and are slidably connected to the upper mold.

[0008] Preferably, the upper end face of the lower mold is provided with an integrally formed limiting groove, and the lower end face of the quick-installation mold core is provided with an integrally formed guide groove. The quick-installation mold core is embedded in the limiting groove and slidably connected to the lower mold through the guide groove.

[0009] Preferably, the lower end face of the lower mold is provided with an integrally formed inner groove, and an electromagnet switch is installed inside the inner groove. The electromagnet switch is electrically connected to a spring electromagnet.

[0010] Preferably, a spring rod is installed at the lower end of the spring electromagnet, and the spring electromagnet extends into the interior of the lower mold and is fixedly connected to the upper end of the spring rod, while the lower end of the spring rod is fixedly connected to the lower mold.

[0011] Preferably, the pressure plate is slidably connected to both sides of the lower mold, the upper end of the pressure plate is provided with an integrally formed guide box, the front end of the guide box is provided with a guide port, and the lower end face of the pressure plate is provided with a plastic outlet.

[0012] Preferably, pressure springs are installed on both sides of the upper end of the pressure plate, and the pressure springs are fixedly connected to the pressure plate and the upper mold respectively, and a hydraulic cylinder is installed between the upper mold and the pressure plate.

[0013] Preferably, the upper end face of the quick-installation mold core is provided with an integrally formed mold groove, which is sealed and connected to the pressure plate. The lower end face of the quick-installation mold core is provided with an integrally formed positioning groove, which is used to install and fix a magnetic block. The fixed magnetic block is embedded inside the positioning groove and fixedly connected to the quick-installation mold core.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the quick-release mold core needs to be disassembled, the plastic mold of this utility model can be disassembled by turning on the electromagnet switch. The electromagnet switch adjusts the magnetic pole of the spring electromagnet, so that the spring electromagnet lifts the quick-release mold core, so that the quick-release mold core can be separated from the lower mold, which facilitates maintenance and repair work, and allows for the replacement of different types of quick-release mold cores to adapt to long-term work.

[0016] 2. Before using the plastic mold of this utility model, the quick-release mold core to be processed is placed in the limiting groove. The quick-release mold core is limited by its own guide slide. The squeezing spring electromagnet slides to the position of the positioning groove. The spring electromagnet is inserted into the positioning groove by the spring rod. The electromagnet switch is turned on so that the surface magnetic pole of the spring electromagnet is opposite to the lower magnetic pole of the fixed magnetic block, and the attraction is performed to keep the fixed magnetic block and the quick-release mold core in a stable position so as to carry out plastic molding. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front view of this utility model;

[0018] Figure 2 This is an axonometric view of the present invention viewed from below;

[0019] Figure 3 This is an isometric view of the quick-release mold core of this utility model after disassembly.

[0020] Figure 4 This is an isometric view of the quick-assembly mold core of this utility model from below.

[0021] In the diagram: 1. Upper mold; 2. Lower mold; 201. Guide slide bar; 202. Inner groove; 203. Electromagnetic switch; 204. Limiting groove; 205. Spring electromagnet; 3. Pressure plate; 301. Material guide box; 302. Pressure spring; 303. Material guide port; 4. Quick-release mold core; 401. Mold groove; 402. Guide slide groove; 403. Positioning groove; 404. Fixing magnetic block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To address the issues of cumbersome core disassembly, complex structure, and hindered replacement work in existing plastic molds during practical use, please refer to [link to relevant documentation]. Figures 1-4 This embodiment provides the following technical solution:

[0024] A plastic mold with a quick-change mold core includes an upper mold 1, a lower mold 2, and a quick-release mold core 4. The quick-release mold core 4 is located on the upper surface of the lower mold 2. The upper mold 1 is installed above the lower mold 2, and a pressure plate 3 is installed between the upper mold 1 and the lower mold 2. A fixing magnet 404 is located at the center of the lower end of the quick-release mold core 4. A spring electromagnet 205 is located on the upper surface of the lower mold 2. When the quick-release mold core 4 needs to be disassembled, the electromagnet switch 203 is turned on. The electromagnet switch 203 adjusts the magnetic pole of the spring electromagnet 205, so that the spring electromagnet 205 lifts the quick-release mold core 4 so that the quick-release mold core 4 can be separated from the lower mold 2.

[0025] The upper end face of the quick-release mold core 4 is provided with an integrally formed mold groove 401, which is sealed and connected to the pressure plate 3. The lower end face of the quick-release mold core 4 is provided with an integrally formed positioning groove 403, which is used to install and fix the magnetic block 404. The magnetic block 404 is embedded in the positioning groove 403 and fixedly connected to the quick-release mold core 4. By removing the quick-release mold core 4 from the lower mold 2, maintenance and repair work can be easily carried out, so as to replace different types of quick-release mold cores 4 and adapt to long-term work.

[0026] The lower end face of the lower mold 2 is provided with an integrally formed inner groove 202. An electromagnet switch 203 is installed inside the inner groove 202. The electromagnet switch 203 is electrically connected to the spring electromagnet 205. The electrodes of the spring electromagnet 205 are adjusted by the electromagnet switch 203 to facilitate replacement.

[0027] Specifically, when the quick-release mold core 4 needs to be disassembled, the electromagnet switch 203 is turned on. The electromagnet switch 203 adjusts the magnetic pole of the spring electromagnet 205, so that the spring electromagnet 205 lifts the quick-release mold core 4, so that the quick-release mold core 4 can be separated from the lower mold 2, which facilitates maintenance and repair work, and allows for the replacement of different types of quick-release mold cores 4 to adapt to long-term operation.

[0028] To address the issue of inconvenient mold core installation and compromised fixation in existing plastic molds during practical use, please refer to... Figures 1-4 This embodiment provides the following technical solution:

[0029] The upper end face of the lower mold 2 is provided with an integrally formed limiting groove 204, and the lower end face of the quick-release mold core 4 is provided with an integrally formed guide groove 402. The quick-release mold core 4 is embedded in the limiting groove 204 and is slidably connected to the lower mold 2 through the guide groove 402. Before the plastic mold is used, the quick-release mold core 4 that needs to be processed is placed in the limiting groove 204 and limited by the guide groove 402 of the quick-release mold core 4 itself. The compression spring electromagnet 205 slides to the position of the positioning groove 403.

[0030] A spring rod is installed at the lower end of the spring electromagnet 205, and the spring electromagnet 205 extends into the interior of the lower mold 2 and is fixedly connected to the upper end of the spring rod. The lower end of the spring rod is also fixedly connected to the lower mold 2. The spring electromagnet 205 is inserted into the positioning groove 403 by the spring rod, and the electromagnet switch 203 is turned on, so that the surface magnetic poles of the spring electromagnet 205 are opposite to the lower magnetic poles of the fixed magnetic block 404, and the attraction is performed to keep the fixed magnetic block 404 and the quick-release mold core 4 in a stable position so as to carry out plastic molding.

[0031] Guide slide rods 201 are provided on both sides of the lower mold 2. The guide slide rods 201 pass through the upper mold 1 and are slidably connected to the upper mold 1. The pressure plate 3 is slidably connected to both sides of the lower mold 2. An integrally formed guide box 301 is provided at the upper end of the pressure plate 3. A guide port 303 is provided at the front end of the guide box 301. A plastic outlet is provided at the lower end face of the pressure plate 3. Plastic is injected into the guide box 301 and then guided into the mold groove 401 through the plastic outlet for cooling and molding.

[0032] Pressure springs 302 are installed on both sides of the upper end of the pressure plate 3. The pressure springs 302 are fixedly connected to the pressure plate 3 and the upper mold 1 respectively. A hydraulic cylinder is installed between the upper mold 1 and the pressure plate 3. The position between the pressure plate 3 and the quick-release mold core 4 is adjusted by the hydraulic cylinder.

[0033] Specifically, before using the plastic mold, the quick-release mold core 4 to be processed is placed in the limiting groove 204 and limited by the guide slide 402 of the quick-release mold core 4 itself. The compression spring electromagnet 205 slides to the position of the positioning groove 403. The spring rod makes the spring electromagnet 205 extend into the positioning groove 403 and the electromagnet switch 203 is turned on, so that the surface magnetic pole of the spring electromagnet 205 is opposite to the lower magnetic pole of the fixed magnetic block 404, and the attraction work is carried out to keep the fixed magnetic block 404 and the quick-release mold core 4 in a stable position so as to carry out the plastic molding work.

[0034] Working principle: During use, the quick-release mold core 4 to be processed is placed in the limiting groove 204. The quick-release mold core 4 is limited by its own guide groove 402, causing the spring electromagnet 205 to slide to the position of the positioning groove 403. The spring rod causes the spring electromagnet 205 to extend into the positioning groove 403, and the electromagnet switch 203 is turned on. This causes the surface magnetic poles of the spring electromagnet 205 to be opposite to the lower magnetic poles of the fixed magnetic block 404, resulting in adsorption and maintaining the stable position of the fixed magnetic block 404 and the quick-release mold core 4. Hydraulic pressure is then used to... The cylinder adjusts the position between the pressure plate 3 and the quick-release mold core 4. Plastic is injected into the guide box 301 and guided into the mold groove 401 through the plastic outlet for cooling and molding. When it is necessary to disassemble the quick-release mold core 4, the electromagnet switch 203 is turned on. The electromagnet switch 203 adjusts the magnetic pole of the spring electromagnet 205, so that the spring electromagnet 205 lifts the quick-release mold core 4 so that the quick-release mold core 4 can be separated from the lower mold 2 for easy maintenance and repair, and to replace different types of quick-release mold cores 4 to adapt to long-term operation.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A plastic mold with a quick-change mold core, comprising an upper mold (1), a lower mold (2), and a quick-release mold core (4), characterized in that, The quick-release mold core (4) is set on the upper end face of the lower mold (2), the upper mold (1) is installed above the lower mold (2), and a pressure plate (3) is installed between the upper mold (1) and the lower mold (2). A fixed magnetic block (404) is set at the lower center of the quick-release mold core (4), and a spring electromagnet (205) is set on the upper end face of the lower mold (2).

2. A plastic mold with a quick-change mold core according to claim 1, characterized in that: Guide slide rods (201) are provided on both sides of the lower mold (2), and the guide slide rods (201) pass through the upper mold (1) and are slidably connected to the upper mold (1).

3. A plastic mold with a quick-change mold core according to claim 1, characterized in that: The upper end face of the lower mold (2) is provided with an integrally formed limiting groove (204), and the lower end face of the quick-installation mold core (4) is provided with an integrally formed guide groove (402). The quick-installation mold core (4) is embedded in the limiting groove (204) and is slidably connected to the lower mold (2) through the guide groove (402).

4. A plastic mold with a quick-change mold core according to claim 1, characterized in that: The lower end face of the lower mold (2) is provided with an integrally formed inner groove (202), and an electromagnet switch (203) is installed inside the inner groove (202). The electromagnet switch (203) is electrically connected to the spring electromagnet (205).

5. A plastic mold with a quick-change mold core according to claim 1, characterized in that: The lower end of the spring electromagnet (205) is equipped with a spring rod, and the spring electromagnet (205) extends into the interior of the lower mold (2) and is fixedly connected to the upper end of the spring rod, and the lower end of the spring rod is fixedly connected to the lower mold (2).

6. A plastic mold with a quick-change mold core according to claim 1, characterized in that: The pressure plate (3) is slidably connected to both sides of the lower mold (2). An integrally formed guide box (301) is provided at the upper end of the pressure plate (3). A guide port (303) is provided at the front end of the guide box (301), and a plastic outlet is provided at the lower end of the pressure plate (3).

7. A plastic mold with a quick-change mold core according to claim 1, characterized in that: Pressure springs (302) are installed on both sides of the upper end of the pressure plate (3). The pressure springs (302) are fixedly connected to the pressure plate (3) and the upper mold (1) respectively. A hydraulic cylinder is installed between the upper mold (1) and the pressure plate (3).

8. A plastic mold with a quick-change mold core according to claim 1, characterized in that: The upper end face of the quick-installation mold core (4) is provided with an integrally formed mold groove (401), the mold groove (401) is sealed and connected to the pressure plate (3), and the lower end face of the quick-installation mold core (4) is provided with an integrally formed positioning groove (403), the positioning groove (403) is used to install and fix a magnetic block (404), and the fixed magnetic block (404) is embedded in the positioning groove (403) and fixedly connected to the quick-installation mold core (4).

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