Side core pulling and mold

Abstract

The present invention discloses a side core pull and a mold. The side core pull has a glue injection flow channel. The first end of the glue injection flow channel forms a docking port for docking with a hot nozzle. The second end of the glue injection flow channel forms a glue inlet for injecting glue into the cavity. When the mold is closed and the glue is injected, the glue inlet corresponds to the non-appearance surface of the product. The side core pull of the present invention arranges a glue injection flow channel inside. Since the glue inlet formed at the second end of the glue injection flow channel corresponds to the non-appearance surface of the product, the glue inlet position of the cavity is located at the non-appearance surface position of the product. That is to say, the appearance surface of the product is bypassed by arranging the glue injection flow channel, thus avoiding the hot nozzle from directly touching the appearance surface of the product, thereby avoiding defects on the appearance surface of the product and ensuring the appearance requirements of the product.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to a side core pulling and a mold. Background Art

[0002] When HIPS-FR material is used for glue injection, the material contains fire retardant ingredients. During the glue injection process, if the hot nozzle is directly applied to the appearance of the product, it will cause defects on the appearance and affect the appearance of the product. Therefore, in order to avoid defects on the appearance, the hot nozzle cannot be directly applied to the appearance of the product.

[0003] In order to solve the problem that during the injection process, the hot nozzle directly touches the appearance surface of the product, which easily causes defects on the appearance surface, a mold is urgently needed to avoid defects on the appearance surface. Summary of the invention

[0004] The invention discloses a side core pulling and a mold, which solves the problem that a hot nozzle directly touches the appearance surface of a product, which easily causes defects on the appearance surface.

[0005] According to one aspect of the present invention, a side core pull is disclosed, which has a glue injection channel. The first end of the glue injection channel forms a docking interface for docking with a hot nozzle, and the second end of the glue injection channel forms a glue inlet for injecting glue into a cavity. When the mold is closed and glue is injected, the glue inlet corresponds to the non-appearance surface of the product.

[0006] Furthermore, the docking port is located at the top of the side core pulling.

[0007] Furthermore, the glue inlet is located at the bottom of the side core pulling device.

[0008] Further, the injection channel includes a demolding channel; a mounting groove is provided on the side core pulling, and a first demolding groove is provided on the groove wall of the mounting groove; the side core pulling also includes a demolding module, the demolding module is detachably arranged in the mounting groove, and a second demolding groove corresponding to the first demolding groove is provided on the demolding module, and when the demolding module is located in the mounting groove, the first demolding groove and the second demolding groove form the demolding channel.

[0009] Furthermore, the glue injection channel also includes a longitudinal channel and a transverse channel, the first end of the demolding channel is the docking port, the second end of the demolding channel is connected to the first end of the longitudinal channel, the second end of the longitudinal channel is connected to the first end of the transverse channel, and the second end of the transverse channel is the glue inlet.

[0010] Furthermore, the first end of the longitudinal flow channel is located at the bottom of the mounting groove, and the first demoulding groove extends to the bottom of the mounting groove and butts with the longitudinal flow channel.

[0011] Furthermore, the glue injection channel includes a longitudinal channel and a transverse channel, the first end of the longitudinal channel is the docking port, the second end of the longitudinal channel is connected to the first end of the transverse channel, and the second end of the transverse channel is the glue inlet.

[0012] Furthermore, there are multiple glue injection channels, and the multiple glue injection channels are distributed at intervals.

[0013] According to a second aspect of the present invention, a mold is disclosed, comprising the above-mentioned side core pulling.

[0014] Furthermore, the mold further comprises a front mold core and a rear mold core, the side core pulls are two oppositely arranged, and the front mold core, the rear mold core and the two side core pulls form the mold cavity.

[0015] Furthermore, the front mold core is also provided with a through hole corresponding to the docking port, and the through hole is used for passing the hot nozzle.

[0016] Furthermore, the front mold core is used to form the appearance molding surface of the cavity.

[0017] The side core pulling of the present invention is achieved by arranging a glue injection channel inside. When the mold is closed and glue is injected, the hot nozzle is docked with the docking port and connected with the glue injection channel. The molten glue enters the glue injection channel through the hot nozzle and enters the cavity of the product through the glue injection channel to realize the injection filling process of the product. Since the glue inlet formed at the second end of the glue injection channel corresponds to the non-appearance surface of the product, the glue inlet position of the cavity is located at the non-appearance surface position of the product. In other words, by arranging the glue injection channel, the appearance surface of the product is bypassed, which avoids the hot nozzle from directly touching the appearance surface of the product, prevents defects on the appearance surface of the product, and ensures the appearance requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the side core pulling of the first embodiment of the present invention;

[0019] Figure 2 is a three-dimensional diagram of the side core pulling of the first embodiment of the present invention;

[0020] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0021] Figure 4 It is a structural schematic diagram of the installation groove of the side core pull-out according to the first embodiment of the present invention;

[0022] Figure 5 yes Figure 4 A partial enlarged view of B in the middle;

[0023] Figure 6 is a schematic structural diagram of a mold according to Embodiment 3 of the present invention;

[0024] Figure 7 1 is a schematic structural diagram of the front mold core of the mold of the third embodiment of the present invention;

[0025] Legend: 10, injection channel; 11, docking port; 12, glue inlet; 13, demoulding channel; 13a, first demoulding groove; 14, longitudinal channel; 15, transverse channel; 20, main body; 21, mounting groove; 30, demoulding module; 40, front mold core; 41, through hole; 50, rear mold core. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the embodiments, but is not limited to the contents of the specification.

[0027] like Figures 1 to 5 In the embodiment 1 shown, the present invention discloses a side core pull, which has a glue injection channel 10. The first end of the glue injection channel 10 forms a docking port 11 for docking with the hot nozzle, and the second end of the glue injection channel 10 forms a glue inlet 12 for injecting glue into the cavity. When the mold is closed and the glue is injected, the glue inlet 12 corresponds to the non-appearance surface of the product. The side core pull of the present invention is provided with a glue injection channel 10 inside. When the mold is closed and the glue is injected, the hot nozzle is docked with the docking port 11, so that the hot nozzle is connected with the glue injection channel 10. The molten glue enters the glue injection channel 10 through the hot nozzle, and enters the mold cavity of the product through the glue injection channel 10, so as to realize the injection filling process of the product. Since the glue inlet 12 formed at the second end of the glue injection channel 10 corresponds to the non-appearance surface of the product, the glue inlet position of the mold cavity is located at the non-appearance surface position of the product. That is to say, by providing the glue injection channel 10, the appearance surface of the product is bypassed, and the hot nozzle is prevented from directly touching the appearance surface of the product, thereby preventing defects from appearing on the appearance surface of the product and ensuring the appearance requirements of the product.

[0028] like Figure 2 As shown, in order to facilitate docking with the hot nozzle, the docking port 11 is located at the top of the side core pull. Since the hot nozzle generally enters the mold from the top to inject glue, setting the docking port 11 at the top of the side core pull can facilitate the docking of the hot nozzle and the docking port 11, thereby reducing the cost of equipment modification.

[0029] Preferably, the glue inlet 12 is located at the bottom of the side core pull, so as to achieve glue injection from the non-exterior surface of the cavity.

[0030] Furthermore, the injection flow channel 10 includes a demoulding flow channel 13, a longitudinal flow channel 14 and a transverse flow channel 15. The first end of the demoulding flow channel 13 is a docking port 11, the second end of the demoulding flow channel 13 is connected to the first end of the longitudinal flow channel 14, the second end of the longitudinal flow channel 14 is connected to the first end of the transverse flow channel 15, and the second end of the transverse flow channel 15 is a glue inlet 12. During glue injection, the molten glue enters the demoulding flow channel 13 through the docking port 11, enters the longitudinal flow channel 14 after passing through the demoulding flow channel 13, and then enters the transverse flow channel 15, and finally enters the mold cavity of the product from the glue inlet 12, thereby realizing the injection filling process of the product, avoiding the hot nozzle directly touching the appearance surface of the product, thereby preventing defects from appearing on the appearance surface of the product and ensuring the appearance requirements of the product.

[0031] It should be noted that the longitudinal flow channel 14 is arranged to extend along the height direction of the side core pull, that is, it extends from the top to the bottom of the side core pull; the transverse flow channel 15 extends along the width direction of the side core pull, in other words, the side core pull has a product molding surface for surrounding the molding cavity, and the transverse flow channel 15 extends in the direction of the product molding surface.

[0032] like Figures 3 to 5 As shown, the side core pull is provided with a mounting groove 21, and a first demolding groove 13a is provided on the groove wall of the mounting groove 21; the side core pull also includes a demolding module 30, which is detachably arranged in the mounting groove 21, and a second demolding groove 13b corresponding to the first demolding groove 13a is provided on the demolding module 30, and when the demolding module 30 is located in the mounting groove 21, the first demolding groove 13a and the second demolding groove 13b surround a demolding channel 13. Since the injection channel 10 is a cold channel, after the injection is completed, the molten rubber will cool and solidify in the injection channel 10, so it is necessary to take out the solidified rubber. By setting the demolding module 30, after the rubber is cooled, the demolding module 30 can be taken out first to open the demolding channel 13, and when the demolding module 30 is taken out, the cooled and solidified rubber can also be taken out together, which is convenient for the removal of the rubber.

[0033] Furthermore, the first end of the longitudinal flow channel 14 is located at the bottom of the mounting groove 21, and the first demolding groove 13a extends to the bottom of the mounting groove 21 and docks with the longitudinal flow channel 14. In other words, the first demolding groove 13a and the longitudinal flow channel 14 are connected together and are interconnected, so that when the demolding module 30 is assembled, a complete injection flow channel 10 can be formed to ensure the continuity of the injection flow channel 10.

[0034] exist Figure 2 In the embodiment shown, there are multiple injection channels 10, which are spaced apart. By providing multiple injection channels, multiple hot nozzles can be matched one by one, thereby improving injection efficiency, improving the uniformity of the glue entering the cavity, and improving product quality.

[0035] In the second embodiment not shown in the drawings, the side core pull of the second embodiment is basically the same as the structure of the first embodiment, and the difference is only in the composition of the injection flow channel. The injection flow channel 10 in the second embodiment includes a longitudinal flow channel 14 and a transverse flow channel 15. The first end of the longitudinal flow channel 14 is a docking port 11, and the second end of the longitudinal flow channel 14 is connected to the first end of the transverse flow channel 15. The second end of the transverse flow channel 15 is a glue inlet 12. Such a glue injection flow channel is more convenient to manufacture in terms of process and has a lower cost.

[0036] like Figure 5 and Figure 6 In the third embodiment shown, the present invention further discloses a mold including the above-mentioned side core pulling.

[0037] The mold also includes a front mold core 40 and a rear mold core 50, and two side core pulls are arranged opposite to each other. The front mold core 40 is buckled on the top of the rear mold core 50, and grooves for installing the side core pulls are formed on both sides of the buckled front mold core 40 and the rear mold core 50. The two side core pulls are respectively arranged in the grooves on both sides, and the front mold core 40, the rear mold core 50 and the two side core pulls surround the molding cavity.

[0038] like Figure 6 As shown, a through hole 41 corresponding to the docking port 11 is also provided on the front mold core 40. The through hole 41 penetrates the front mold core 40 from top to bottom. Below the through hole 41 is the docking port 11 of the side core pulling. The hot nozzle docks with the docking port 11 after passing through the through hole 41.

[0039] It should be noted that the longitudinal flow channel 14 is arranged to extend along the height direction of the side core pull, extending from the top to the bottom of the side core pull, and specifically, when the mold is closed, it extends from the direction of the front mold core 40 to the direction of the rear mold core 50; the transverse flow channel 15 extends along the width direction of the side core pull. In other words, the side core pull has a product molding surface for surrounding the molding cavity, and the transverse flow channel 15 extends in the direction of the product molding surface. Specifically, when the mold is closed, it extends in the direction of the front mold core 40 or the rear mold core 50.

[0040] When the mold is closed, the front mold core 40 is used to form the appearance molding surface of the cavity, and the rear mold core 50 is used to form the non-appearance molding surface of the cavity. The position of the glue inlet 12 is set close to the position of the rear mold core 50 through the glue injection flow channel 10, so that the glue inlet position is located on the non-appearance molding surface, thereby avoiding defects on the appearance surface of the product.

[0041] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A side core pulling, characterized in that: The side core pull has a glue injection channel (10), the first end of the glue injection channel (10) forms a docking port (11) for docking with a hot nozzle, the second end of the glue injection channel (10) forms a glue inlet (12) for injecting glue into the mold cavity, and when the mold is closed and the glue is injected, the glue inlet (12) corresponds to the non-appearance surface of the product; there are a plurality of glue injection channels (10), and the plurality of glue injection channels (10) are distributed at intervals; The injection flow channel (10) comprises a demoulding flow channel (13); a mounting groove (21) is provided on the side core pull, and a first demoulding groove (13a) is provided on the groove wall of the mounting groove (21); The side core pulling device further comprises a demoulding module (30), the demoulding module (30) being detachably arranged in the installation groove (21), the demoulding module (30) being provided with a second demoulding groove (13b) corresponding to the first demoulding groove (13a), and when the demoulding module (30) is located in the installation groove (21), the first demoulding groove (13a) and the second demoulding groove (13b) enclose the demoulding flow channel (13); The injection flow channel (10) further comprises a longitudinal flow channel (14) and a transverse flow channel (15); the first end of the demoulding flow channel (13) is the docking port (11); the second end of the demoulding flow channel (13) is connected to the first end of the longitudinal flow channel (14); the second end of the longitudinal flow channel (14) is connected to the first end of the transverse flow channel (15); and the second end of the transverse flow channel (15) is the injection port (12); The first end of the longitudinal flow channel (14) is located at the bottom of the installation groove (21), and the first demoulding groove (13a) extends to the bottom of the installation groove (21) and butts against the longitudinal flow channel (14).

2. The side core pull according to claim 1, characterized in that: The docking port (11) is located at the top of the side core pulling device.

3. The side core pull according to claim 1, characterized in that: The glue inlet (12) is located at the bottom of the side core puller.

4. A mold, characterized in that: The invention comprises the side core pulling device according to any one of claims 1 to 3.

5. The mold according to claim 4, characterized in that: The mold further comprises a front mold core (40) and a rear mold core (50), the side core pulls are two oppositely arranged, and the front mold core (40), the rear mold core (50) and the two side core pulls form the mold cavity.

6. The mold according to claim 5, characterized in that: The front mold core (40) is used to form the appearance molding surface of the mold cavity, and the front mold core (40) is also provided with a through hole (41) corresponding to the docking port (11), and the through hole (41) is used to pass the hot nozzle.

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