Quick mold changing structure of two-color injection mold

Abstract

This utility model relates to the field of two-color injection molds, and more particularly to a quick mold change structure for two-color injection molds. The quick mold change structure includes a base plate, with a mold body at the upper end of the base plate. A core mold is detachably connected to the upper mold of the mold body. A groove is located at the lower end of the upper mold, and an electromagnet is fixed to the bottom of the groove. The electromagnet and the core mold are magnetically connected, fixing the core mold in the upper mold. A water-cooling component extending into the groove is also installed in the upper mold, and a support component is fixed to the bottom of the groove, which abuts against the core mold. In the quick mold change structure for two-color injection molds provided by this utility model, an electromagnet is installed inside the upper mold, and the core mold is fixed by magnetic attraction, making the assembly and disassembly of the core mold more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of two-color injection molds, and in particular to a quick mold change structure for two-color injection molds. Background Technology

[0002] Two-color injection molds are an advanced type of injection mold that can complete the injection of two colors or two materials in a single injection molding process.

[0003] This injection mold consists of an upper mold and a lower mold, both of which contain a core mold. The core mold inside the upper mold is convex, while the core mold inside the lower mold is concave. The core mold inside the lower mold is supported and constrained by the lower mold, making disassembly and assembly relatively convenient. However, the core mold inside the upper mold needs to be fixed to the upper mold with bolts, making disassembly relatively cumbersome.

[0004] Therefore, it is necessary to provide a new quick mold change structure for two-color injection molds to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quick mold change structure for a two-color injection mold.

[0006] The quick mold changing structure of the two-color injection mold provided by this utility model includes a base plate, the upper end of which has a mold body, and a core mold is detachably connected to the upper mold of the mold body.

[0007] The lower end of the upper mold has a groove, and an electromagnet is fixed to the bottom of the groove. The electromagnet and the core mold are magnetically connected, so that the core mold is fixed in the upper mold.

[0008] A water-cooling component extending into the groove is also installed in the upper mold, and a support component is fixed at the bottom of the groove, which can press against the core mold.

[0009] Preferably, a wire is installed on the electromagnet, and a plug connected to the wire is fixed on the side of the upper mold.

[0010] Preferably, the water-cooling assembly includes two serpentine tubes, one end of which is fixed with a connector tube, and the other ends of the two tubes are connected by a spiral tube.

[0011] Preferably, the wire passes through a helical tube.

[0012] Preferably, when the core mold comes into contact with the electromagnet, there is a certain gap between the upper end face of the core mold and the ground inside the groove, and the water-cooling component is installed in this gap.

[0013] Preferably, the support assembly includes a positioning rod, the upper end of which is fixed to the bottom of the groove. The positioning rod has a sliding cavity inside, and a sliding rod below the positioning rod is slidably connected inside the sliding cavity. The other end of the sliding rod is fixed with a support plate that can contact the core mold. A spring that abuts against the sliding rod is also fixed inside the sliding cavity.

[0014] Preferably, when the spring is contracted to its limit, the support plate is in contact with the lower end face of the positioning rod, and the core mold is in contact with the electromagnet.

[0015] Preferably, the elastic force exerted by the spring on the mandrel is less than the attraction force exerted by the electromagnet on the mandrel.

[0016] Compared with related technologies, the quick mold change structure for two-color injection molds provided by this utility model has the following advantages:

[0017] This utility model provides a quick mold change structure for a two-color injection mold, in which an electromagnet is set inside the upper mold to fix the core mold by magnetic attraction, making it more convenient and faster to disassemble and assemble the core mold. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the quick mold change structure for a two-color injection mold provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the upper mold structure shown in this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the groove shown in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the water-cooling component and the electromagnet installed together according to this utility model;

[0022] Figure 5 This is a schematic diagram of the support component shown in this utility model.

[0023] Numbered in the diagram: 1. Base plate; 2. Mold body; 21. Upper mold; 22. Core mold; 3. Electromagnet; 31. Wire; 32. Plug; 4. Water cooling assembly; 41. Serpentine tube; 42. Connector tube; 43. Spiral tube; 5. Support assembly; 51. Positioning rod; 52. Slide rod; 53. Support plate; 54. Spring. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 5 The present invention provides a quick mold changing structure for a two-color injection mold. The quick mold changing structure for the two-color injection mold includes a base plate 1, a mold body 2 at the upper end of the base plate 1, and a core mold 22 detachably connected to the upper mold 21 of the mold body 2.

[0030] The lower end of the upper mold 21 has a groove, and an electromagnet 3 is fixed at the bottom of the groove. The electromagnet 3 and the core mold 22 are magnetically connected, so that the core mold 22 is fixed in the upper mold 21. A wire 31 is installed on the electromagnet 3, and a plug 32 connected to the wire 31 is fixed on the side of the upper mold 21.

[0031] A water-cooling component 4 extending into the groove is also installed in the upper mold 21, and a support component 5 is fixed at the bottom of the groove, which can press against the core mold 22.

[0032] It should be noted that in this device, only the connection between the upper mold 21 and the core mold 22 in the mold body 2 is further improved, while the lower mold can maintain the traditional structure.

[0033] The upper mold 21 has a groove at its lower end, which allows the core mold 22 to be inserted into the groove, thereby providing initial constraint for the core mold 22. At the same time, there is an electromagnet 3 at the bottom of the groove, which can directly contact the core mold 22. Therefore, when the electromagnet 3 is energized, it will generate an attraction force on the core mold 22 to fix the core mold 22 and meet its normal use requirements.

[0034] A water-cooling component 4 is also provided inside the groove. The water-cooling component 4 is located next to the electromagnet 3. Therefore, when the mold is used for production and processing, the hot-melt raw material will conduct heat to the mold, which will have a certain impact on the electromagnet 3 and the wire 31 used for power supply. The water-cooling component 4 can absorb the heat, so that the electromagnet 3 and the wire 31 are less affected by the heat, and improve their service life.

[0035] The support component 5 is used to protect the electromagnet 3. That is, when the electromagnet 3 is affected by temperature and the compression of the mandrel 22, it may undergo plastic deformation. The support component 5 can support the mandrel 22 so that it can make good contact with the electromagnet 3. At the same time, it limits the position of the mandrel 22 to reduce the pressure of the mandrel 22 on the electromagnet 3, thereby protecting the electromagnet 3.

[0036] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 The water-cooling assembly 4 includes two serpentine tubes 41, one end of which is fixed with a connector tube 42, and the other ends of the two are connected by a spiral tube 43, while the wire 31 passes through the spiral tube 43.

[0037] When the core mold 22 comes into contact with the electromagnet 3, there is a certain gap between the upper end face of the core mold 22 and the ground inside the groove, and the water-cooling component 4 is installed in this gap.

[0038] It should be noted that after the core mold 22 is installed, there is an electromagnet 3 between the core mold 22 and the bottom of the groove, which creates a certain gap between the core mold 22 and the bottom of the groove. This gap is a closed space, and the water cooling component 4 extends into the closed space. This not only improves the utilization of the space inside the groove, but also improves the heat absorption effect.

[0039] In the water-cooling assembly 4, the connector pipe 42 can be connected to an external water supply device to introduce coolant into the serpentine pipe 41 and the spiral pipe 43. The serpentine pipe 41 is closer to the electromagnet 3 to protect the electromagnet 3, while the wire 31 passes through the spiral pipe 43 to protect the wire 31.

[0040] In the embodiments of this utility model, please refer to Figure 5 The support assembly 5 includes a positioning rod 51, the upper end of which is fixed to the bottom of the groove. The positioning rod 51 has a sliding cavity inside, and a sliding rod 52 below the positioning rod 51 is slidably connected inside the sliding cavity. The other end of the sliding rod 52 is fixed with a support plate 53 that can contact the core mold 22. A spring 54 that abuts against the sliding rod 52 is also fixed inside the sliding cavity.

[0041] When the spring 54 is contracted to its limit, the support plate 53 contacts the lower end face of the positioning rod 51, the core mold 22 contacts the electromagnet 3, and the elastic force generated by the spring 54 on the core mold 22 is less than the attraction force of the electromagnet 3 on the core mold 22.

[0042] It should be noted that in the support assembly 5, the slide bar 52 can move axially and is simultaneously subjected to the elastic force of the spring 54, while the support plate 53 at the other end can contact and press against the core mold 22.

[0043] When the core mold 22 is attracted by the electromagnet 3, the spring 54 is compressed until the support plate 53 abuts against the end of the positioning rod 51. At this time, the core mold 22 is in good contact with the electromagnet 3 and is simultaneously constrained by the support component 5.

[0044] When removing and replacing the core mold 22, the attraction force of the electromagnet 3 is removed, and the core mold 22 can be pushed out of the groove by the elastic force of the spring 54, thus assisting in the disassembly of the core mold 22.

[0045] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0046] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick mold change structure for a two-color injection mold, comprising a base plate (1), a mold body (2) at the upper end of the base plate (1), and a core mold (22) detachably connected to the upper mold (21) of the mold body (2), characterized in that: The lower end of the upper mold (21) has a groove, and an electromagnet (3) is fixed in the bottom of the groove. The electromagnet (3) and the core mold (22) are magnetically connected, so that the core mold (22) is fixed in the upper mold (21). A water-cooling component (4) extending into the groove is also installed in the upper mold (21), and a support component (5) is fixed at the bottom of the groove, which can abut against the core mold (22).

2. The quick mold change structure for a two-color injection mold according to claim 1, characterized in that, A wire (31) is installed on the electromagnet (3), and a plug (32) connected to the wire (31) is fixed on the side of the upper mold (21).

3. The quick mold change structure for a two-color injection mold according to claim 1, characterized in that, The water-cooling assembly (4) includes two serpentine tubes (41), one end of which is fixed with a connector tube (42), and the other ends of the two tubes are connected by a spiral tube (43).

4. The quick mold change structure for a two-color injection mold according to claim 2, characterized in that, The wire (31) passes through the helical tube (43).

5. The quick mold change structure for a two-color injection mold according to claim 1, characterized in that, When the core mold (22) comes into contact with the electromagnet (3), there is a certain gap between the upper end face of the core mold (22) and the bottom surface of the groove, and the water-cooling component (4) is installed in this gap.

6. The quick mold change structure for a two-color injection mold according to claim 1, characterized in that, The support assembly (5) includes a positioning rod (51), the upper end of which is fixed to the bottom of the groove. The positioning rod (51) has a sliding cavity inside, and a sliding rod (52) below the positioning rod (51) is slidably connected inside the sliding cavity. The other end of the sliding rod (52) is fixed with a support plate (53) that can contact the core mold (22). A spring (54) that abuts against the sliding rod (52) is also fixed inside the sliding cavity.

7. The quick mold change structure for a two-color injection mold according to claim 6, characterized in that, When the spring (54) is contracted to its limit, the support plate (53) contacts the lower end face of the positioning rod (51), and the core mold (22) contacts the electromagnet (3).

8. The quick mold change structure for a two-color injection mold according to claim 7, characterized in that, The elastic force generated by the spring (54) on the mandrel (22) is less than the attraction force of the electromagnet (3) on the mandrel (22).

Images