Pin-point glue feeding mold for pin-point gate

Abstract

The utility model discloses a pin-point gate point glue feeding mold, which comprises an upper mold panel and a lower mold panel, a forming mold cavity for forming a product is arranged between the upper mold panel and the lower mold panel, the upper mold panel is provided with a feed port, an outlet of the feed port is provided with a flow channel mechanism for guiding injection molding materials to the forming mold cavity, and the flow channel mechanism is provided with a water inlet and a water outlet. And the runner mechanism comprises a glue injection port runner which is inclined relative to the forming die cavity and is used for enhancing the strength of the joint of the glue injection port runner and a glue port of the forming die cavity. Compared with a conventional vertical glue injection mode, the obliquely arranged glue injection port runner has the advantages that the glue injection material formed between the glue port connecting part and the inner wall of the product is thicker, so that the strength of the glue port connecting part is enhanced, and the phenomenon that the product is damaged due to the weak strength of the glue port connecting part during injection molding or demolding is avoided; the injection molding material at the glue port is easily broken or broken when the injection molding material is pressed, so that the appearance quality of a product is ensured, and the production quality of the product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a fine water gap point glue mould. BACKGROUND

[0002] At present, many plastic products are processed by injection molding, and the fine water gap point glue mould is one of the injection processing, the fine water gap point glue mould is also called three-plate mould, and the three-plate mould is a mould for casting head in injection molding, and the three-plate mould is widely applied in the existing injection molding.

[0003] The glue injection port runner of the existing fine water gap point glue mould is vertically injected, the interval between the glue injection port runner and the inner wall of the product is small due to the small size of the product, the glue thickness at the connecting position of the product gate is thin, and a sharp sheet is formed, when the product is demoulded, the injection plastic of the product glue injection port runner is separated at the position, but the glue thickness at the connecting position is thin, is easily broken under pressure, and then more residues are generated at the glue port of the product, the appearance of the product is damaged, and the production quality of the product is reduced. UTILIT Y MODEL CONTENTS

[0004] In order to solve the technical problem that the glue injection port runner is vertically injected, the interval between the glue injection port runner and the inner wall of the product is small, the glue at the connecting position of the product gate is easily broken, and the appearance of the product is damaged, the utility model provides a fine water gap point glue mould.

[0005] The utility model is realized by the following technical schemes:

[0006] A fine water gap point glue mould, including upper die panel and lower die panel, the upper die panel is equipped with the forming die cavity for making the product, the upper die panel is equipped with the feed inlet, the outlet of the feed inlet is equipped with the runner mechanism for guiding the injection plastic to the forming die cavity, the runner mechanism includes the glue injection port runner that is inclined relative to the forming die cavity and is used for enhancing the strength of the glue port connecting position of the forming die cavity.

[0007] The fine water gap point glue mould, the forming die cavity is equipped with the glue injection port, and the glue injection port runner extends to one side of the glue injection port and is connected with the glue injection port.

[0008] The fine water gap point glue mould, the inclination angle of the glue injection port runner is 10 °-25 °.

[0009] The fine water gap point glue mould, the pipe diameter of the glue injection port runner gradually reduces to the glue injection port and forms a cone.

[0010] The water gap point-in glue mold as claimed in claim 1, wherein the flow channel mechanism further comprises a connecting flow channel and a feeding flow channel arranged in the middle of the connecting flow channel, one end of the feeding flow channel being connected with the feeding port and the other end being communicated with the connecting flow channel.

[0011] The water gap point-in glue mold as claimed in claim 1, wherein both ends of the connecting flow channel are provided with the glue injection port flow channels, and the glue injection port flow channels at both ends are arranged between the ends of the connecting flow channel and the straight flow channels.

[0012] The water gap point-in glue mold as claimed in claim 1, wherein the flow channel mechanism is further provided with a flow channel packaging member for packaging the straight flow channels and the glue injection port flow channels, the flow channel packaging member comprising a first packaging member and a second packaging member.

[0013] The water gap point-in glue mold as claimed in claim 1, wherein the first packaging member is provided with a protrusion and the second packaging member is provided with a groove for cooperating with the protrusion to package.

[0014] The water gap point-in glue mold as claimed in claim 1, wherein the upper mold panel and the lower mold panel are further provided with a fixed mounting seat for mounting and fixing the forming mold cavity, the fixed mounting seat comprising a mounting base and an upper mounting seat fixedly mounted with the mounting base.

[0015] Compared with the prior art, the water gap point-in glue mold has the following beneficial effects:

[0016] 1. The glue injection port flow channel arranged in an inclined manner has a thicker injection glue thickness formed between the glue port connecting portion and the inner wall of the product, thereby enhancing the strength of the glue port connecting portion, so that the injection glue at the glue port is not easily broken or ruptured due to the weak strength of the glue port connecting portion when subjected to pressure during injection molding or demolding, thereby ensuring the appearance quality of the product and improving the production quality of the product.

[0017] 2. The pipe diameter of the glue injection port flow channel gradually decreases to form a conical shape, which helps to reduce the internal stress of the injection molded part, thereby improving the production quality of the injection molded part; meanwhile, the two ends of the small gate have a large pressure difference, thereby increasing the injection flow rate of the injection material, thereby reducing the apparent viscosity of the injection material, and making the product more easily filled.

[0018] 3. The flow channel packaging member can protect the straight flow channels and the glue injection port flow channels from being damaged, prolong the service life of the mold, and also reduce the heat exchange between the flow channels and the external environment, reduce the thermal degradation of the injection material, and improve the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in combination with the drawings and embodiments.

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a decomposition schematic view of the utility model;

[0022] Figure 3 It is a runner mechanism decomposition schematic view of the utility model;

[0023] Figure 4 It is Figure 3 A region enlarged schematic view of the utility model;

[0024] Figure 5 It is a section schematic view of the utility model;

[0025] Figure 6 It is Figure 5 B region enlarged schematic view of the utility model;

[0026] Figure 7 It is a forming die cavity structure schematic view of the utility model;

[0027] Figure 8 It is a runner encapsulation piece structure schematic view of the utility model;

[0028] Figure 9 It is Figure 8 Decomposition schematic view of the utility model.

CONCRETE IMPLEMENTATION

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0030] Specific embodiments, in combination Figures 1 to 9As shown, further illustrate the technical scheme of the utility model, a water mouth point into glue mold, including upper die panel 10 and lower die panel 20, the upper die panel 10 with the lower die panel 20 between be equipped with for making product forming forming mould cavity 30, the upper die panel 10 is equipped with feed inlet 11, the outlet of feed inlet 11 is equipped with for the flow channel mechanism 40 of injection molding material diversion to forming mould cavity 30, the flow channel mechanism 40 include the inclined injection port runner 41 for enhancing the glue port junction of forming mould cavity 30 relative to forming mould cavity 30.The mold through the inclined injection port runner 41 of setting, compared with the vertical injection port runner of the past, the injection molding material thickness formed between the glue port junction and the inner wall of product is thicker, thereby enhancing the strength of glue port junction, so that in injection or demolding, the injection molding material of glue port place is not easily broken or broken due to the weak strength of glue port junction under pressure, thereby the appearance quality of product is guaranteed, and the production quality of product is improved.

[0031] Further, as the preferred embodiment of the present scheme but not limited, the forming mould cavity 30 is provided with glue inlet 31, and the injection port runner 41 is inclined to extend to one side of the glue inlet 31 and is in communication with the glue inlet 31.

[0032] Wherein, the inclination angle of the injection port runner 41 is 10°-25°, in the embodiment, when the inclination angle of the injection port runner 41 is 15°, the strength of the glue port junction of the injection port runner 41 and the glue inlet 31 is the largest, and in the specific implementation, the inclination angle of the injection port runner 41 is determined according to the specific mold design specification.

[0033] It should be noted that the inclination angle of the injection port runner 41 is not too small or too large, and if the inclination angle is too small, the glue port junction is easy to form a too sharp acute angle, so that its strength is not obviously improved, and the injection molding material between the glue port junction and the inner wall of the product is also easy to break or break; if the inclination angle is too large, the product injection molding becomes difficult, and the too large inclination angle also increases the possibility of product warping deformation.

[0034] In the embodiment, the injection port runner with appropriate inclination angle is arranged, so that the strength of the glue port junction is larger, which helps to reduce the problem that the injection molding material of the glue port place is easy to break due to pressure during injection or demolding, thereby the appearance quality of product is guaranteed, and the production quality of product is improved.

[0035] Further, as a preferred embodiment of the present scheme but not limited, the pipe diameter of the glue injection port flow channel 41 gradually narrows to the glue inlet 31 to form a cone shape. The design of the cone-shaped end of the glue injection port flow channel 41 helps to reduce the internal stress of the injection molded part, thereby improving the production quality of the injection molded part; at the same time, the two ends of the small gate have a large pressure difference, thereby increasing the injection flow rate of the injection material, thereby reducing the apparent viscosity of the injection material, making the product more easily filled.

[0036] Further, as a preferred embodiment of the present scheme but not limited, the flow channel mechanism 40 further comprises a connecting flow channel 42 and a feeding flow channel 43 arranged in the middle of the connecting flow channel 42, one end of the feeding flow channel 43 is connected with the feeding port 11, and the other end is connected with the connecting flow channel 42.

[0037] Further, as a preferred embodiment of the present scheme but not limited, the number of glue injection port flow channels 41 is two, and the two glue injection port flow channels 41 are symmetrically distributed at both ends of the center line of the connecting flow channel 42 as the symmetry axis, and the two glue injection port flow channels 41 are connected with the straight flow channels 44 between the ends of the connecting flow channel 42.

[0038] In this embodiment, two glue injection port flow channels are provided, so that two products can be injection molded at the same time each time, improving production efficiency; at the same time, the glue injection port flow channels are symmetrically distributed at both ends of the connecting channel, which can reduce the problem of poor or uneven filling caused by unbalanced flow of the injection material, thereby ensuring the production quality of the injection molded products.

[0039] Further, as a preferred embodiment of the present scheme but not limited, the flow channel mechanism 40 is further provided with a flow channel packaging member 45 for packaging the straight flow channel 44 and the glue injection port flow channel 41, the flow channel packaging member 45 comprises a first packaging member 451 and a second packaging member 452, the first packaging member 451 is provided with a protrusion 4511, and the second packaging member 452 is provided with a groove 4521 for cooperating with the protrusion 4511 to package.

[0040] In this embodiment, the flow channel packaging member 45 can protect the straight flow channel and the glue injection port flow channel from damage, prolong the service life of the mold, reduce heat exchange between the flow channel and the external environment, reduce thermal degradation of the injection material, and improve product quality; at the same time, it can also reduce the deformation of the flow channel under the injection pressure, and ensure the stability of the injection material flow.

[0041] Further, as a preferred embodiment of the present scheme but not limited, the upper mold panel 10 and the lower mold panel 20 are further provided with a fixed mounting seat 50 for mounting and fixing the forming mold cavity 30, and the fixed mounting seat comprises a mounting base 51 and an upper mounting seat 52 fixedly mounted with the mounting base 51.

[0042] In the embodiment, the fixed mounting seat enhances the overall stability of the forming cavity, reduces the deformation of the forming cavity in the high-pressure injection molding process, and ensures the accurate positioning of the forming cavity, thereby reducing quality problems such as product warping or deformation caused by unstable or inaccurate positioning of the forming cavity.

[0043] Further, as a preferred embodiment of the present scheme but not limited, the material of the upper die panel 10 and the lower die panel 20 is die steel.

[0044] The working principle of the embodiment is as follows:

[0045] The water gate point glue mold provided by the utility model, through the inclined glue injection port runner 41, the strength of the injection glue formed between the glue port connection of the forming cavity 30 and the inner wall of the product is enhanced, so that the production quality of the product is improved, and the specific principle is as follows:

[0046] The glue injection port runner 41 of the embodiment is inclined to the glue injection port 31 of the forming cavity 30 by 15°, and extends to the glue injection port 31 and communicates with it, so that when the product is injection molded, the thickness of the injection glue formed between the glue port connection and the inner wall of the product is thicker compared with the traditional vertical glue injection port runner, so that the injection glue formed between the glue port connection and the inner wall of the product is not easy to be broken or cracked due to pressure, thereby ensuring the appearance of the product and improving the production quality of the product.

[0047] Those skilled in the art should understand that the above description is an embodiment provided in combination with specific content, and the specific implementation of the utility model is not limited to these descriptions. Since the industry naming is not the same, it is not limited to the above naming, and it is not limited to the English naming. Any method, structure, etc. similar to or identical to the utility model, or any technical deduction or replacement made under the concept of the utility model, should be considered as the protection scope of the utility model.

Claims

1. A fine-gate injection mold, comprising an upper mold panel (10) and a lower mold panel (20), wherein a molding cavity (30) for forming a product is provided between the upper mold panel (10) and the lower mold panel (20), the upper mold panel (10) is provided with a feed port (11), and a flow channel mechanism (40) for guiding the injection plastic to the molding cavity (30) is provided at the outlet of the feed port (11), wherein the flow channel mechanism (40) includes an injection port flow channel (41) inclined relative to the molding cavity (30) for strengthening the connection between the injection port and the injection port of the molding cavity (30).

2. The fine sprue injection mold according to claim 1, characterized in that, The molding cavity (30) is provided with a glue inlet (31), and the glue injection channel (41) extends obliquely to one side of the glue inlet (31) and is connected to the glue inlet (31).

3. The fine sprue injection mold according to claim 2, characterized in that, The inclination angle of the injection port channel (41) is 10°-25°.

4. The fine sprue injection mold according to claim 2, characterized in that, The diameter of the injection port channel (41) gradually decreases towards the injection port (31) to form a cone shape.

5. The fine sprue injection mold according to claim 1, characterized in that, The flow channel mechanism (40) further includes a connecting flow channel (42) and a feed flow channel (43) disposed in the middle of the connecting flow channel (42). One end of the feed flow channel (43) is connected to the feed inlet (11), and the other end is connected to the connecting flow channel (42).

6. The fine sprue injection mold according to claim 5, characterized in that, Both ends of the connecting channel (42) are provided with the glue injection port channel (41), and a direct flow channel (44) is provided between the glue injection port channel (41) at both ends and the end of the connecting channel (42).

7. A fine sprue injection mold according to claim 6, characterized in that, The flow channel mechanism (40) is further provided with a flow channel encapsulation component (45) for encapsulating the direct flow channel (44) and the injection port flow channel (41), the flow channel encapsulation component (45) including a first encapsulation component (451) and a second encapsulation component (452).

8. A fine sprue injection mold according to claim 7, characterized in that, The first package (451) has a protrusion (4511), and the second package (452) has a groove (4521) for engaging with the protrusion (4511) for encapsulation.

9. A fine sprue injection mold according to claim 1, characterized in that, A fixing seat (50) for installing and fixing the molding cavity (30) is provided between the upper mold panel (10) and the lower mold panel (20). The fixing seat includes a mounting base (51) and an upper mounting seat (52) that cooperates with the mounting base (51) for fixed installation.

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