Quick color changing welding type splitter plate

Abstract

The utility model discloses a quick color changing welding type splitter plate, which relates to the technical field of hot runners, comprises a splitter plate body, and is characterized in that the splitter plate body comprises a body unit I, a runner groove, a lead-out port, a corner, a body unit II and a lead-in port. According to the welding type splitter plate capable of achieving rapid color changing, the runner groove opposite to the first body unit is formed in the lower plane of the second body unit, the runner groove and the first body unit are combined to form a complete resin runner, the second body unit and the second body unit are seamlessly fixed through vacuum diffusion welding, the plane smoothness is guaranteed through large water grinding, and cleaning and rapid color changing are facilitated; molten resin is introduced into a leading-in opening in the middle of the upper plane of the second body unit through the sprue body from an injection molding machine nozzle and flows to leading-out openings in the tail ends of the branch runners through the main runner, when color changing is needed, the resin runner is cleaned through a pouring nozzle material until the resin runner is clean, the temperature of the hot runner is adjusted to the normal forming temperature after cleaning, and color changing is completed. Color changing verification can be started, and a color changing result is confirmed.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a fast color-changing welded manifold. Background Art

[0002] The manifold is a component of the hot runner system, which is used to divert the resin material injected from the injection molding machine and guide it to various injection points of the mold.

[0003] However, since the runner mechanism is generally processed and formed by gun drilling, the runner mechanism is arranged in a criss-cross manner and its corners are sharp corners of 90 degrees or other angles. This results in high shear force at each corner of the runner mechanism. In addition, how to quickly change the color of the hot runner system is a technical point in injection molding production. Because the product has a variety of colors, after a certain amount of injection molding of one color, it is necessary to change to another color. If the color change is not thorough, the color will be mixed and the product will be unqualified. However, in actual use, there is a risk that the molten plastic will be retained in the nozzle after cooling, resulting in a small amount of discolored molten plastic in the dead corner being brought into the manifold together with the new material after the color is changed, resulting in color difference, rough surface, quality degradation and other undesirable phenomena in the product.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a fast color-changing welded diverter plate is proposed. Utility Model Content

[0005] The utility model aims to provide a fast color-changing welding type manifold to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick color-changing welded manifold, comprising a manifold body, the manifold body comprising a main body unit 1, a flow channel groove, an outlet, a corner, a main body unit 2 and an inlet, the main body unit 1 is provided with a flow channel groove on the upper plane, and each branch end of the flow channel groove is provided with an outlet, and the flow channel groove passes through several corners, the main body unit 1 is correspondingly arranged above the main body unit 2, and the main body unit 2 is provided with an inlet located in the middle on the upper plane.

[0007] Furthermore, the corner is located at the intersection of the main flow channel and the branch flow channel of the flow channel groove, and the corner is set to be an arc.

[0008] Furthermore, a flow channel groove opposite to the main body unit 1 is opened on the lower plane of the main body unit 2, and the main body unit 2 and the main body unit 1 are seamlessly fixed by vacuum diffusion welding.

[0009] Furthermore, a nozzle body is nested inside the inlet, and the nozzle body includes a nozzle head, a nozzle sleeve, a protective outer shell, a heat-conductive inner shell and an electric heating net. The nozzle head is integrally fixed with a nozzle sleeve at the bottom, and the nozzle sleeve is provided with a protective outer shell on the outside, the nozzle sleeve is provided with a heat-conductive inner shell inside, and an electric heating net is provided in the interlayer between the heat-conductive inner shell and the protective outer shell.

[0010] Furthermore, the nozzle body also includes a nozzle hole, a nozzle hole extending into the nozzle sleeve is opened in the middle of the nozzle head, and the aperture of the nozzle hole gradually increases along the direction from the nozzle head to the nozzle sleeve.

[0011] Furthermore, the nozzle body also includes a positioning groove and an embedding groove. The outer edge of the nozzle hole head is provided with an inwardly recessed positioning groove, and embedding grooves are symmetrically provided on both sides of the positioning groove, and fastening bolts are arranged inside the embedding grooves.

[0012] Furthermore, the nozzle body is connected to an injection molding machine nozzle, and the ball radius of the injection molding machine nozzle end is smaller than the ball radius of the positioning groove. The injection molding machine nozzle end is provided with a nozzle mouth, and the diameter of the nozzle mouth is smaller than the head diameter of the nozzle hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When the utility model is in use, a flow channel groove opposite to the main body unit one is opened on the lower plane of the second main body unit, and they are combined into a complete resin flow channel. The two are seamlessly fixed by vacuum diffusion welding. A large water grinder ensures the smoothness of the surface, which is convenient for cleaning and fast color change. When in use, the molten resin is passed from the injection molding machine nozzle through the nozzle body into the inlet located in the middle of the upper plane of the second main body unit, and flows through the main flow channel to the outlet at the end of each branch flow channel. When the color needs to be changed, the resin flow channel is cleaned by pouring water inlet material until it is clean. After cleaning, the temperature of the hot runner is adjusted to the normal molding temperature, and the color change can be verified and the color change result can be confirmed. The application realizes a smooth transition by designing the corner where the main flow channel of the flow channel groove and the branch flow channel are intersected as an arc, which effectively reduces the shear force and prevents the water inlet material from sticking to the corner.

[0015] 2. When the utility model is in use, the ball radius of the end of the injection molding machine nozzle is designed to be smaller than the ball radius of the positioning groove, and the diameter of the nozzle mouth is designed to be smaller than the head diameter of the nozzle hole, so as to avoid the molten resin from overflowing and accumulating in the positioning groove in the middle of the nozzle head. In addition, by designing the nozzle sleeve outside the nozzle hole as a three-layer structure of a protective outer shell, a heat-conducting inner shell and an electric heating net in the interlayer, the plastic remaining in the nozzle body can be heated, reducing the possibility of cooling retention and affecting the subsequent color-changing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the utility model device;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model device;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the nozzle body of the utility model.

[0019] In the figure: 1. manifold body; 101. body unit 1; 102. flow channel groove; 103. outlet; 104. corner; 105. body unit 2; 106. inlet; 2. nozzle body; 201. nozzle head; 202. nozzle sleeve; 203. protective outer shell; 204. heat-conducting inner shell; 205. electric heating net; 206. nozzle hole; 207. positioning groove; 208. embedding groove; 3. injection molding machine nozzle; 4. nozzle mouth. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1 to Figure 2 As shown, a quick color-changing welded manifold includes a manifold body 1, the manifold body 1 includes a body unit 101, a flow channel groove 102, an outlet 103, a corner 104, a body unit 2 105 and an inlet 106, the body unit 101 is provided with a flow channel groove 102 on the upper plane, and each branch end of the flow channel groove 102 is provided with an outlet 103, and the flow channel groove 102 passes through a number of corners 104, the body unit 101 is correspondingly provided with a body unit 2 105 above, and the body unit 2 105 is provided with an inlet 106 located in the middle on the upper plane, the corner 104 is located at the intersection of the main flow channel and the branch flow channel of the flow channel groove 102, and the corner 104 is arranged in an arc shape, the body unit 2 105 is provided with a flow channel groove 102 opposite to the body unit 101 on the lower plane, and the body unit 2 105 and the body unit 1 101 are seamlessly fixed by vacuum diffusion welding;

[0022] The specific operation is as follows: a flow channel groove 102 opposite to the main body unit 101 is opened on the lower plane of the main body unit 105, and they are combined into a complete resin flow channel. The two are seamlessly fixed by vacuum diffusion welding. A large water grinder ensures the smoothness of the plane, which is convenient for cleaning and fast color change. When in use, the molten resin is passed from the injection molding machine nozzle 3 through the nozzle body 2 into the inlet 106 located in the middle of the upper plane of the main body unit 105, and flows through the main flow channel to the outlet 103 at the end of each branch flow channel. When the color needs to be changed, the resin flow channel is cleaned by pouring water inlet material until it is clean. After cleaning, the hot runner temperature is adjusted to the normal molding temperature, and the color change can be verified and the color change result can be confirmed. The present application designs the corner 104 at the intersection of the main flow channel of the flow channel groove 102 and the branch flow channel into an arc shape to achieve a smooth transition, effectively reduce the shear force, and prevent the water inlet material from sticking at the corner 104;

[0023] like Figures 1 to 3 As shown, a nozzle body 2 is nested inside the inlet 106, and the nozzle body 2 includes a nozzle head 201, a nozzle sleeve 202, a protective outer shell 203, a heat-conducting inner shell 204 and an electric heating net 205. The nozzle head 201 is integrally fixed with the nozzle sleeve 202 at the bottom, and the nozzle sleeve 202 is provided with a protective outer shell 203 on the outside, and the nozzle sleeve 202 is provided with a heat-conducting inner shell 204 inside the nozzle sleeve 202, and the electric heating net 205 is provided in the interlayer between the heat-conducting inner shell 204 and the protective outer shell 203. The nozzle body 2 also includes a nozzle hole 206, and a nozzle hole 206 extending into the nozzle sleeve 202 is opened in the middle of the nozzle head 201. The aperture of the nozzle hole 206 gradually increases along the direction from the nozzle head 201 to the nozzle sleeve 202. The nozzle body 2 also includes a positioning groove 207 and an embedding groove 208. The outer edge of the nozzle head 206 is provided with an inwardly recessed positioning groove 207, and embedding grooves 208 are symmetrically provided on both sides of the positioning groove 207, and fastening bolts are provided inside the embedding groove 208. The nozzle body 2 is externally connected to an injection molding machine nozzle 3, and the ball radius of the end of the injection molding machine nozzle 3 is smaller than the ball radius of the positioning groove 207. A gun nozzle mouth 4 is provided at the end of the injection molding machine nozzle 3, and the diameter of the gun nozzle mouth 4 is smaller than the diameter of the head of the nozzle hole 206.

[0024] The specific operation is as follows: by designing the ball radius of the end of the injection molding machine nozzle 3 to be smaller than the ball radius of the positioning groove 207, and the diameter of the nozzle mouth 4 to be smaller than the head diameter of the nozzle hole 206, it is prevented that the molten resin overflows and accumulates in the positioning groove 207 in the middle of the nozzle head 201. In addition, by designing the nozzle sleeve 202 outside the nozzle hole 206 as a three-layer structure of a protective outer shell 203, a heat-conducting inner shell 204 and an electric heating net 205 in the interlayer, the residual plastic in the nozzle body 2 can be heated, reducing the possibility of cooling retention and affecting the subsequent color changing effect.

[0025] Working principle: When using this kind of fast color-changing welded manifold, a flow channel groove 102 opposite to the main body unit 101 is opened on the lower plane of the main body unit 105, and they are combined into a complete resin flow channel. The two are seamlessly fixed by vacuum diffusion welding, and a large water grinder ensures the smoothness of the surface, which is convenient for cleaning and fast color change. When in use, the molten resin is passed from the injection molding machine nozzle 3 through the nozzle body 2 into the inlet 106 located in the middle of the upper plane of the main body unit 105, and flows through the main channel to the outlet 103 at the end of each branch flow channel. When color change is required, the resin flow channel is cleaned by pouring water material until it is clean. After cleaning, the hot runner temperature is adjusted to the normal molding temperature, and the color change can be verified and the color change result can be confirmed. This application passes through the flow channel groove The corner 104 at the intersection of the main channel 102 and the branch channel is designed to be arc-shaped to achieve a smooth transition, effectively reduce shear force, and prevent the sprue material from sticking at the corner 104. In addition, by designing the ball radius of the end of the injection molding machine nozzle 3 to be smaller than the ball radius of the positioning groove 207, and the diameter of the nozzle mouth 4 to be smaller than the head diameter of the nozzle hole 206, it is prevented that the molten resin overflows and accumulates in the positioning groove 207 in the middle of the nozzle head 201. In addition, by designing the nozzle sleeve 202 outside the nozzle hole 206 as a three-layer structure of a protective outer shell 203, a heat-conducting inner shell 204 and an electric heating net 205 in the interlayer, the residual plastic in the nozzle body 2 can be heated to reduce the possibility of cooling retention and affecting the subsequent color change effect.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A quick color-changing welding type manifold, comprising a manifold body (1), characterized in that: The flow divider body (1) comprises a body unit 1 (101), a flow channel groove (102), an outlet (103), a corner (104), a body unit 2 (105) and an inlet (106); the body unit 1 (101) has a flow channel groove (102) on its upper plane, and each branch end of the flow channel groove (102) has an outlet (103), and the flow channel groove (102) passes through a plurality of corners (104); the body unit 2 (105) is correspondingly arranged above the body unit 1 (101), and the body unit 2 (105) has an inlet (106) located in the middle on its upper plane.

2. The fast color-changing welding type manifold according to claim 1, characterized in that: The corner (104) is located at the intersection of the main flow channel and the branch flow channel of the flow channel groove (102), and the corner (104) is arranged in an arc shape.

3. The fast color-changing welding type manifold according to claim 1, characterized in that: The lower plane of the main body unit 2 (105) is provided with a flow channel groove (102) opposite to the main body unit 1 (101), and the main body unit 2 (105) and the main body unit 1 (101) are seamlessly fixed by vacuum diffusion welding.

4. The rapid color-changing welding type manifold according to claim 1, characterized in that: A nozzle body (2) is nested inside the inlet (106), and the nozzle body (2) includes a nozzle head (201), a nozzle sleeve (202), a protective outer shell (203), a heat-conducting inner shell (204) and an electric heating net (205). The nozzle head (201) is integrally fixed with the nozzle sleeve (202) at the bottom, and the nozzle sleeve (202) is provided with a protective outer shell (203) on the outside, and the nozzle sleeve (202) is provided with a heat-conducting inner shell (204) inside the nozzle sleeve (202), and an electric heating net (205) is provided in the interlayer between the heat-conducting inner shell (204) and the protective outer shell (203).

5. The fast color-changing welding type manifold according to claim 4, characterized in that: The nozzle body (2) further comprises a nozzle hole (206), a nozzle hole (206) extending into the nozzle sleeve (202) is opened in the middle of the nozzle head (201), and the diameter of the nozzle hole (206) gradually increases along the direction from the nozzle head (201) to the nozzle sleeve (202).

6. The rapid color-changing welding type manifold according to claim 5, characterized in that: The nozzle body (2) further comprises a positioning groove (207) and an embedding groove (208); an inwardly recessed positioning groove (207) is provided on the outer edge of the nozzle hole (206) head, embedding grooves (208) are symmetrically provided on both sides of the positioning groove (207), and fastening bolts are arranged inside the embedding grooves (208).

7. The fast color-changing welding type manifold according to claim 6, characterized in that: The nozzle body (2) is externally connected to an injection molding machine nozzle (3), and the ball radius of the end of the injection molding machine nozzle (3) is smaller than the ball radius of the positioning groove (207). The end of the injection molding machine nozzle (3) is provided with a gun nozzle opening (4), and the diameter of the gun nozzle opening (4) is smaller than the head diameter of the nozzle hole (206).

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