Forming die with automatic water gap breaking mechanism

Abstract

The utility model discloses a forming mold with an automatic water gap breaking mechanism. The forming mold comprises a front mold assembly, a rear mold assembly, an injection molding assembly and a demolding assembly, a positioning and pressing structure is arranged between the front mold assembly and the rear mold assembly; the front mold assembly comprises a front mold mounting plate, a front mold pressing plate and a front mold core, and the front mold core comprises two forming insert assemblies I; the rear mold assembly comprises a rear mold mounting plate, a rear mold pressing plate and a rear mold core, and the rear mold core comprises two forming insert assemblies II; the two second forming insert assemblies are each provided with a plurality of second positioning forming cavities and detachable base plates, and the second positioning forming cavities are each provided with an automatic water gap breaking structure. According to the utility model, the automatic water gap breaking action is carried out on the formed product by arranging the automatic water gap breaking action, the structure is simple, the efficiency is high, the deformation caused by pulling when the formed product falls off is prevented, and the quality and the appearance of the formed product are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cosmetic pen body molding moulds, in particular to a molding mould with an automatic water shut-off mechanism. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. Existing cosmetic pen bodies are mostly injection molded using a molding mold. When the molded product is demolded, the molded product is ejected from the mold by an ejector pin, but this method can only separate the molded product from the nozzle together, and cannot automatically cut off the nozzle during demolding. The nozzle needs to be separated from the molded product later, which increases the work steps; and when the nozzle and the molded product are demolded together, there may be a pull between the nozzle and the molded product, causing the molded product to deform, affecting the quality and appearance of the molded product. Utility Model Content

[0003] This utility model is aimed at the current technical deficiencies and provides a molding die with an automatic water shut-off mechanism, aiming to solve the technical problems that the molding die in the prior art has no automatic water shut-off function, increases subsequent processing steps, and is prone to pulling, resulting in deformation of the molded product.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A molding die with an automatic water shut-off mechanism comprises a front mold assembly, a rear mold assembly, an injection molding assembly and a demoulding assembly; the injection molding assembly is arranged on the front mold assembly, a guide column positioning assembly is arranged between the front mold assembly and the rear mold assembly, and the demoulding assembly is arranged on the rear mold assembly; a positioning and clamping structure is arranged between the front mold assembly and the rear mold assembly; the front mold assembly comprises a front mold mounting plate, a front mold pressure plate and a front mold core, and the front mold core is connected to the front mold pressure plate; the front mold core comprises two molding insert assemblies one; the two molding insert assemblies one are each provided with a glue injection flow channel structure one and a plurality of positioning inserts one;

[0006] The rear mold assembly includes a rear mold mounting plate, a rear mold pressing plate and a rear mold core, the rear mold pressing plate is connected to the rear mold mounting plate, and a spacer layer is provided between the rear mold pressing plate and the rear mold mounting plate; the rear mold core is connected to the rear mold pressing plate; the rear mold core includes two molding insert assemblies II; the two molding insert assemblies II are each provided with a plurality of positioning molding cavities II and a detachable pad, and the positioning molding cavities II are each provided with an automatic water shut-off structure;

[0007] The demoulding assembly is arranged in the spacer layer; the demoulding assembly includes a fixed plate, a movable plate, a spring assembly and an ejector assembly, the fixed plate is arranged on the rear mold mounting plate; the movable plate is arranged above the fixed plate, the spring assembly is arranged between the movable plate and the rear mold pressing plate, and the ejector assembly is arranged on the movable plate.

[0008] As a further improvement, the front mold mounting plate is provided with a mounting hole, the front mold pressing plate is provided with a glue injection port, the injection molding component is arranged in the mounting hole, the injection molding component includes a glue injection connector and a glue injection tube, the glue injection connector is fixed in the mounting hole, and the glue injection tube is connected to the glue injection port; the front mold pressing plate is provided with two groups of first glue injection channels, the first glue injection channels are connected to the glue injection port; the first glue injection channels are provided with multiple glue outlets.

[0009] As a further improvement, the molding insert components are all insert plates, the molding insert components are all provided with a plurality of mounting holes arranged in an array, a plurality of positioning inserts are respectively arranged in the mounting holes, and the positioning inserts are all provided with a first molding cavity; the molding insert components are all further provided with two groups of injection port groups, the two groups of injection port groups each include two opposite injection ports, the injection ports are all connected to the outlet of the first injection channel; the molding insert components are also provided with a second injection channel group, and the second injection channel groups are respectively provided with injection ports that are connected.

[0010] As a further improvement, the molding insert assembly 2 includes a molding insert 2 and a fixing plate 2, the fixing plate 2 is arranged on the rear molding plate, and the molding insert 2 is arranged on the fixing plate 2; a plurality of positioning molding cavities 2 are arranged in an array on the molding insert 2; the molding insert 2 includes two insert blocks 2 arranged in mirror-image relation; the positioning molding cavity 2 includes two positioning molding half-cavities 2 arranged in mirror-image relation, and the positioning molding half-cavities 2 are respectively arranged on the insert block 2; and the insert block 2 is provided with a plurality of glue injection channels 3, and the glue injection channels 3 are provided with a glue inlet 3 and a glue outlet 3, the glue inlet 3 is arranged on the end face of the insert block 2, and the glue outlet 3 is respectively arranged on the inner wall of the positioning molding half-cavity 2.

[0011] As a further improvement, the automatic water cut-off structure includes a plurality of water cutting protrusions, which are respectively arranged on the glue outlet three and on the inner wall of the positioning molding half cavity two; the water cutting protrusion is provided with a first blade surface and a second blade surface, and a third glue injection port is provided between the first blade surface and the second blade surface.

[0012] As a further improvement, the detachable pad includes two positioning plates arranged in a mirror image, and the positioning plates are each provided with a plurality of positioning arc openings and a plurality of fourth glue injection openings.

[0013] As a further improvement, the positioning and clamping structure includes a central positioning and clamping block and two side positioning and clamping blocks, the central positioning and clamping block is arranged on the central axis of the front mold pressure plate, and the two side positioning and clamping blocks are arranged on both sides of the front mold pressure plate in a mirror-image manner; the insert block 2 is provided with a positioning bevel; the two sides of the central positioning and clamping block and the two side positioning and clamping blocks are provided with a positioning bevel 1, and the positioning bevel 1 is used to fit with the positioning bevel when the mold is closed;

[0014] The front mold plate is also provided with a plurality of positioning blocks 1, and a plurality of positioning grooves 1 are provided between two of the insert blocks 2, and the positioning blocks 1 are matched and connected with the positioning grooves 1.

[0015] As a further improvement, the ejector pin assembly includes a plurality of ejector pins, which are respectively arranged in the second positioning molding cavity, and the ejector pins are each provided with a stopper, which can move along the direction of the second positioning molding cavity; the movable plate is provided with a connecting rod, and the rear mold mounting plate is provided with a through hole four, and the connecting rod is arranged in the through hole four.

[0016] As a further improvement, the molding insert assembly 1 and the molding insert assembly 2 are both provided with a cooling structure, and the cooling structure includes a plurality of cooling pipes, and the cooling pipes are each provided with two connection interfaces.

[0017] As a further improvement, the guide post positioning assembly includes a plurality of guide posts and a plurality of guide sleeve groups; the guide sleeve groups each include a plurality of guide sleeves, and the guide sleeves are respectively sleeved on the guide posts.

[0018] Compared with the prior art, the above one or more technical solutions in the forming mold with automatic water shut-off mechanism provided by the embodiment of the utility model have at least one of the following technical effects:

[0019] The utility model realizes automatic water shut-off of a molded product by arranging an automatic water shut-off consisting of a plurality of water cut-off protrusions. When the molding die is demoulding, the molded product and the water outlet are automatically cut off by the water cut-off protrusions, thereby realizing rapid separation between the two. The automatic water shut-off structure has a simple structure and high efficiency, and can also prevent the molded product from being deformed due to pulling when it falls off, thereby ensuring the quality and appearance of the molded product. The utility model arranges a detachable pad for adjusting the height of the insert block 2 according to needs, thereby forming insert blocks of different specifications and sizes, thereby improving applicability and reducing the mold opening cost of the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 Schematic diagram of the overall structure of the forming mold with an automatic water shut-off mechanism of this embodiment;

[0022] Figure 2 This is an exploded schematic diagram of a molding die with an automatic water shut-off mechanism according to this embodiment;

[0023] Figure 3 This is a schematic structural diagram of the front mold mounting plate of this embodiment;

[0024] Figure 4 It is a schematic structural diagram of the front mold core and the rear mold core of this embodiment;

[0025] Figure 5 is a structural schematic diagram of a molding insert component 1 of this embodiment;

[0026] Figure 6 is a schematic structural diagram of the insert block 2 of this embodiment;

[0027] Figure 7 for Figure 6 A is an enlarged schematic diagram. DETAILED DESCRIPTION

[0028] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0029] For example, see the attached Figure 1 to Figure 7 A molding die 1 with an automatic water shut-off mechanism comprises a front mold assembly 2, a rear mold assembly 3, an injection molding assembly 4 and a demoulding assembly 5; the injection molding assembly 4 is arranged on the front mold assembly 2, a guide column positioning assembly 6 is arranged between the front mold assembly 2 and the rear mold assembly 3, and the demoulding assembly 5 is arranged on the rear mold assembly 3; a positioning and clamping structure 7 is arranged between the front mold assembly 2 and the rear mold assembly 3; the front mold assembly 2 comprises a front mold mounting plate 20, a front mold pressing plate 21 and a front mold core 22, and the front mold core 22 is connected to the front mold pressing plate 21; the front mold core 22 comprises two molding insert assemblies 220; the two molding insert assemblies 220 are both provided with a glue injection flow channel structure 221 and a plurality of positioning inserts 222;

[0030] The rear mold assembly 3 includes a rear mold mounting plate 30, a rear mold pressing plate 31 and a rear mold core 32, wherein the rear mold pressing plate 31 is connected to the rear mold mounting plate 30, and a spacer layer is provided between the rear mold pressing plate 31 and the rear mold mounting plate 30; the rear mold core 32 is connected to the rear mold pressing plate 31; the rear mold core 32 includes two molding insert assemblies 2 320; the two molding insert assemblies 2 320 are each provided with a plurality of positioning molding cavities 2 321 and a detachable pad 322, and the positioning molding cavities 2 321 are each provided with an automatic water shut-off structure 8;

[0031] The demoulding assembly 5 is arranged in the spacer layer; the demoulding assembly 5 includes a fixed plate 50, a movable plate 51, a spring assembly 52 and a ejector assembly 53, the fixed plate 50 is arranged on the rear mold mounting plate 30; the movable plate 51 is arranged above the fixed plate 50, the spring assembly 52 is arranged between the movable plate 51 and the rear mold plate 31, and the ejector assembly 53 is arranged on the movable plate 51.

[0032] The front mold mounting plate 20 is provided with a mounting hole, the front mold pressing plate 21 is provided with a glue injection port, the injection molding component 4 is arranged in the mounting hole, the injection molding component 4 includes a glue injection connector and a glue injection tube, the glue injection connector is fixed in the mounting hole, and the glue injection tube is connected to the glue injection port; the front mold pressing plate 21 is provided with two groups of first glue injection channels 210, and the first glue injection channels 210 are connected to the glue injection port; the first glue injection channels 210 are provided with multiple glue outlets.

[0033] The molding insert components 220 are all insert plates, and the molding insert components 220 are all provided with a plurality of mounting holes arranged in an array, and a plurality of positioning inserts 222 are respectively arranged in the mounting holes, and the positioning inserts 222 are all provided with a first molding cavity; the molding insert components 220 are also provided with two groups of injection port groups 220a, and the two groups of injection port groups 220a each include two opposite injection ports, and the injection ports are connected to the outlet of the first injection channel 210; the molding insert components 220 are also provided with a second injection channel group 220b, and the second injection channel group 220b is respectively provided with an injection port 1 connected, and the molding insert components 220 are used for molding processing of the first end of the molded product.

[0034] The second molding insert assembly 320 includes a second molding insert 320a and a second fixing plate 320b, wherein the second fixing plate 320b is arranged on the rear mold plate 31, and the second molding insert 320a is arranged on the second fixing plate 320b; a plurality of second positioning molding cavities 321 are arranged in an array on the second molding insert 320a; the second molding insert 320a includes two second insert blocks 320c arranged in mirror images; the second positioning molding cavity 321 includes two second insert blocks 320c arranged in mirror images The positioning molding half cavity 2 320d is respectively arranged on the insert block 2 320c; and the insert block 2 320c is provided with a plurality of glue injection channels 3 320e, and the glue injection channels 3 320e are provided with glue inlet 3 and glue outlet 3, the glue inlet 3 is arranged on the end face of the insert block 2 320c, and the glue outlet 3 is respectively arranged on the inner wall of the positioning molding half cavity 2 320d, and the molding insert assembly 2 320 is used for molding the cavity of the molding product.

[0035] The automatic water cut-off structure 8 includes a plurality of water cut-off protrusions 80, and the water cut-off protrusions 80 are respectively arranged on the glue outlet three and on the inner wall of the positioning molding half cavity two 320d; the water cut-off protrusion 80 is provided with a first blade surface 800 and a second blade surface 801, and a third glue injection port is provided between the first blade surface 800 and the second blade surface 801. The automatic water cut-off is used to realize automatic cutting of the water outlet when the molded product is demoulded. It has a simple structure and high efficiency, and can prevent deformation caused by pulling when the molded product falls off, thereby ensuring the quality and appearance of the molded product.

[0036] The removable pad 322 includes two positioning plates arranged in a mirror image, each of which is provided with a plurality of positioning arc openings and a plurality of fourth injection openings. The removable pad 322 is used to adjust the height of the insert block 2 320c according to demand, thereby forming insert blocks of different specifications and sizes, thereby improving applicability and reducing the mold opening cost of the molded product.

[0037] The positioning and clamping structure 7 includes a central positioning and clamping block 70 and two side positioning and clamping blocks 71, wherein the central positioning and clamping block 70 is arranged on the central axis of the front mold pressing plate 21, and the two side positioning and clamping blocks 71 are arranged on both sides of the front mold pressing plate 21 in a mirror-image manner; the second insert block 320c is provided with a positioning bevel; the two sides of the central positioning and clamping block 70 and the two side positioning and clamping blocks 71 are provided with a positioning bevel 1, and the positioning bevel 1 is used to fit with the positioning bevel when the mold is closed. The positioning and clamping structure 7 is used to ensure the positioning effect of the molding insert component 1 220 and the molding insert component 2 320, and to ensure that the mold is closed for the two mirror-image-opposite insert blocks 2 320c, so as to ensure the quality of the subsequent molded products;

[0038] The front mold plate 21 is also provided with a plurality of positioning blocks 9, and a plurality of positioning grooves 10 are provided between the two insert blocks 320c. The positioning block 9 is connected with the positioning groove 10, and the positioning block 9 and the positioning groove 10 are used for positioning to ensure the position of the molding insert assembly 220 and the molding insert assembly 320.

[0039] The ejector assembly 53 includes a plurality of ejectors, which are respectively arranged in the second positioning molding cavity 321, and each of the ejectors is provided with a stopper, which can move along the direction of the second positioning molding cavity 321; the movable plate 51 is provided with a connecting rod, and the rear mold mounting plate 30 is provided with a through hole four, and the connecting rod is arranged in the through hole four, and the ejector assembly 53 is used to eject and demold the molded product.

[0040] The molding insert assembly 1 220 and the molding insert assembly 2 320 are both further provided with a cooling structure 11, and the cooling structure 11 includes a plurality of cooling pipes, and the cooling pipes are each provided with two connection interfaces. The cooling structure 11 is used for the flow of cooling liquid, thereby realizing cooling molding action.

[0041] The guide post positioning assembly 6 includes a plurality of guide posts and a plurality of guide sleeve groups; the guide sleeve groups each include a plurality of guide sleeves, and the guide sleeves are respectively sleeved on the guide posts. The guide post positioning assembly 6 is used to ensure the stability of demoulding, mold closing and mold opening actions.

[0042] The utility model realizes automatic water shut-off of a molded product by arranging an automatic water shut-off consisting of a plurality of water cut-off protrusions. When the molding die is demoulding, the molded product and the water outlet are automatically cut off by the water cut-off protrusions, thereby realizing rapid separation between the two. The automatic water shut-off structure has a simple structure and high efficiency, and can also prevent the molded product from being deformed due to pulling when it falls off, thereby ensuring the quality and appearance of the molded product. The utility model arranges a detachable pad for adjusting the height of the insert block 2 according to needs, thereby forming insert blocks of different specifications and sizes, thereby improving applicability and reducing the mold opening cost of the molded product.

[0043] The present invention is not limited to the above-mentioned embodiments. Other molding dies for automatic water shut-off mechanisms obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A molding die with an automatic water shut-off mechanism, characterized in that: The molding die comprises a front mold assembly, a rear mold assembly, an injection molding assembly and a demoulding assembly; the injection molding assembly is arranged on the front mold assembly, a guide column positioning assembly is arranged between the front mold assembly and the rear mold assembly, and the demoulding assembly is arranged on the rear mold assembly; a positioning and clamping structure is arranged between the front mold assembly and the rear mold assembly; the front mold assembly comprises a front mold mounting plate, a front mold pressure plate and a front mold core, and the front mold core is connected to the front mold pressure plate; the front mold core comprises two molding insert assemblies one; the two molding insert assemblies one are each provided with a glue injection flow channel structure one and a plurality of positioning inserts one; The rear mold assembly includes a rear mold mounting plate, a rear mold pressing plate and a rear mold core, the rear mold pressing plate is connected to the rear mold mounting plate, and a spacer layer is provided between the rear mold pressing plate and the rear mold mounting plate; the rear mold core is connected to the rear mold pressing plate; the rear mold core includes two molding insert assemblies II; the two molding insert assemblies II are each provided with a plurality of positioning molding cavities II and a detachable pad, and the positioning molding cavities II are each provided with an automatic water shut-off structure; The demoulding assembly is arranged in the spacer layer; the demoulding assembly includes a fixed plate, a movable plate, a spring assembly and an ejector assembly, the fixed plate is arranged on the rear mold mounting plate; the movable plate is arranged above the fixed plate, the spring assembly is arranged between the movable plate and the rear mold pressing plate, and the ejector assembly is arranged on the movable plate.

2. The forming mold with an automatic water shut-off mechanism according to claim 1, characterized in that: The front mold mounting plate is provided with a mounting hole, the front mold pressing plate is provided with a glue injection port, the injection molding component is arranged in the mounting hole, the injection molding component includes a glue injection connector and a glue injection tube, the glue injection connector is fixed in the mounting hole, and the glue injection tube is connected to the glue injection port; the front mold pressing plate is provided with two groups of first glue injection channels, the first glue injection channels are connected to the glue injection port; the first glue injection channels are provided with multiple glue outlets.

3. The forming mold with an automatic water shut-off mechanism according to claim 2, characterized in that: The molding insert components are all insert plates, and the molding insert components are all provided with a plurality of mounting holes arranged in an array, and a plurality of positioning inserts are respectively arranged in the mounting holes, and the positioning inserts are all provided with a first molding cavity; the molding insert components are all further provided with two groups of injection ports, and the two groups of injection ports include two opposite injection ports, and the injection ports are all connected and communicated with the outlet of the first injection channel; the molding insert components are also provided with a second injection channel group, and the second injection channel groups are respectively provided with injection ports connected and communicated.

4. The forming die with automatic water shut-off mechanism according to claim 3, characterized in that: The two molding insert assemblies each include a molding insert two and a fixing plate two, the fixing plate two being arranged on the rear molding plate, and the molding insert two being arranged on the fixing plate two; a plurality of the two positioning molding cavities are arranged in an array on the two molding inserts; the two molding inserts each include two insert blocks two that are arranged in mirror images; the two positioning molding cavities each include two two positioning molding half-cavities two that are arranged in mirror images, and the two positioning molding half-cavities two are respectively arranged on the two insert blocks; and the two insert blocks each include a plurality of glue injection channels three, and the three glue injection channels each include a glue inlet three and a glue outlet three, the glue inlet three are arranged on the end face of the two insert blocks, and the three glue outlets are respectively arranged on the inner wall of the two positioning molding half-cavities.

5. The forming die with automatic water shut-off mechanism according to claim 4, characterized in that: The automatic water cut-off structure includes a plurality of water cut-off protrusions, which are respectively arranged on the glue outlet three and on the inner wall of the positioning molding half cavity two; the water cut-off protrusion is provided with a first blade surface and a second blade surface, and a third glue injection port is provided between the first blade surface and the second blade surface.

6. The forming die with automatic water shut-off mechanism according to claim 5, characterized in that: The detachable pad includes two positioning plates arranged in mirror image, and each of the positioning plates is provided with a plurality of positioning arc openings and a plurality of fourth glue injection openings.

7. The forming die with automatic water shut-off mechanism according to claim 6, characterized in that: The positioning and clamping structure comprises a central positioning and clamping block and two side positioning and clamping blocks, wherein the central positioning and clamping block is arranged on the central axis of the front mold pressing plate, and the two side positioning and clamping blocks are arranged on both sides of the front mold pressing plate in a mirror-image manner; the second insert block is provided with a positioning inclined surface; the two sides of the central positioning and clamping block and the two side positioning and clamping blocks are provided with a first positioning inclined surface, and the first positioning inclined surface is used to fit with the positioning inclined surface when the mold is closed; The front mold plate is also provided with a plurality of positioning blocks 1, and a plurality of positioning grooves 1 are provided between two of the insert blocks 2, and the positioning blocks 1 are matched and connected with the positioning grooves 1.

8. The forming die with automatic water shut-off mechanism according to claim 7, characterized in that: The ejector pin assembly includes a plurality of ejector pins, which are respectively arranged in the second positioning molding cavity, and each of the ejector pins is provided with a stopper, which can move along the direction of the second positioning molding cavity; the movable plate is provided with a connecting rod, and the rear mold mounting plate is provided with a through hole four, and the connecting rod is arranged in the through hole four.

9. The forming die with automatic water shut-off mechanism according to claim 8, characterized in that: The molding insert component 1 and the molding insert component 2 are both provided with a cooling structure, and the cooling structure includes a plurality of cooling pipes, and the cooling pipes are each provided with two connection interfaces.

10. The forming die with automatic water shut-off mechanism according to claim 9, characterized in that: The guide post positioning assembly includes a plurality of guide posts and a plurality of guide sleeve groups; each of the guide sleeve groups includes a plurality of guide sleeves, and the guide sleeves are respectively sleeved on the guide posts.

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