Hot nozzle structure of hot runner mold

Abstract

The utility model discloses a hot nozzle structure of a hot runner mold, which belongs to the technical field of hot runner molds, and comprises a splitter plate and a hot nozzle main body, a heating component is arranged on the surface of the splitter plate, a hot runner matched with the heating component for use is arranged in the splitter plate, the outlet position of the hot runner is connected with a fixing piece, and the fixing piece is connected with the splitter plate. The upper end of the hot nozzle main body is inserted into the fixing piece, the sealing mechanism is arranged at the joint of the hot nozzle main body and the fixing piece, and the hot nozzle main body and the splitter plate can be conveniently butted by installing the fixing piece on the splitter plate, so that the inserting position between the hot nozzle main body and the fixing piece can be reinforced through the arranged sealing mechanism; and therefore, the sealing performance between the hot nozzle main body and the splitter plate is enhanced, liquid is not prone to leakage in the flowing process, and the liquid circulation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot runner mould technical field, concretely is a kind of hot nozzle structure of hot runner mould. BACKGROUND

[0002] Hot runner mould refers to the mould that melt in flow channel is always not solidified using heating device, this kind of mould, through heating assembly system, melts plastic particle is injected into the cavity of mould in injection molding process, since melt in flow channel is always kept molten state, thus it is not necessary to take out solidified waste material when every time opening mould, thereby improve production efficiency and material utilization, hot runner mould is installed with hot nozzle structure under normal use state, and hot nozzle structure is important component in hot runner mould.

[0003] The hot nozzle structure of existing hot runner mould is prone to cause the position sealing of connecting portion to be not strong enough when installing, thereby causing internal liquid to leak when circulating, thereby affecting the sealing effect when hot nozzle structure of hot runner mould is fixed, in order to solve the above problems, thereby a kind of hot nozzle structure of hot runner mould after improvement is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of hot nozzle structure of hot runner mould, by installing fixing piece on shunt plate, hot nozzle main body and shunt plate can be conveniently butted, so as to be reinforced by the sealing mechanism of being set, the position of the insertion of hot nozzle main body and fixing piece, so as to enhance the sealing between hot nozzle main body and shunt plate, so that liquid is not prone to leak in the process of flowing, improve the effect of liquid circulation, subsequently the flow guide mechanism of being set on hot nozzle main body can play the flow guide effect to the liquid flowing in it, can avoid excessive overflow in the position of discharge port, control the flow velocity of liquid, to solve the problem proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of hot nozzle structure of hot runner mould, including shunt plate and hot nozzle main body, the surface of the shunt plate is provided with heating assembly, the inside of the shunt plate is equipped with hot runner used in cooperation with heating assembly, the outlet position of the hot runner is connected with fixing piece, the upper end of the hot nozzle main body is inserted in fixing piece, and the connecting portion of the hot nozzle main body and fixing piece is provided with sealing mechanism.

[0006] Preferably, the center of the hot nozzle main body is provided with sol channel, heating piece is installed on the outer side of the sol channel, the upper end of the heating piece is connected with temperature controller, the surface of the heating piece is sleeved with heat shield, the heat shield is fixed on hot nozzle main body, the temperature controller is installed on the surface of heat shield, and the lower end of the hot nozzle main body and heat shield is provided with flow guide mechanism.

[0007] Preferably, the sealing mechanism comprises a first fixed disc and a second fixed disc, the first fixed disc is fixed on the fixed part, the second fixed disc is fixed on the upper end of the hot nozzle body, the first fixed disc and the second fixed disc are attached, the outer side of the first fixed disc and the second fixed disc is sleeved with a sealing cover, the upper surface of the sealing cover is provided with two cover plates, the center of the two cover plates is clamped on the outer side wall of the fixed part, the cover plate is provided with a first through hole at the symmetrical position, the first fixed disc, the second fixed disc and the sealing cover are provided with a second through hole at the corresponding position, and the inner cavity of the first through hole and the second through hole is inserted with a positioning assembly.

[0008] Preferably, the positioning assembly comprises a positioning bolt, the positioning bolt is inserted into the first through hole and the second through hole, and the both ends of the positioning bolt are screwed with a fastening nut.

[0009] Preferably, the heating assembly comprises a limiting groove, the limiting groove is arranged on the flow distribution plate, the heating rod is installed in the limiting groove, and the connecting end of the heating rod is connected with a connector.

[0010] Preferably, the flow guide mechanism comprises an inner flow guide pipe and an outer flow guide pipe, the inner flow guide pipe is installed in the inner cavity of the hot nozzle body, and the inner flow guide pipe is located at the connecting position of the liquid inlet of the hot nozzle body and the hot runner; the outer flow guide pipe is installed at the bottom end of the heat shield, and the edge of the bottom end of the outer flow guide pipe is provided with a cutting surface.

[0011] Preferably, the inside of the outer flow guide pipe is divided into an upper flared portion and a lower constricted portion, the diameter of the upper flared portion is greater than that of the sol channel, and the diameter of the lower constricted portion is smaller than that of the sol channel.

[0012] Compared with the prior art, the hot nozzle structure of the hot runner mold has the advantages that:

[0013] The hot nozzle structure of the hot runner mold has the advantages that: the fixed part is installed on the flow distribution plate, so that the hot nozzle body and the flow distribution plate can be conveniently butted, the sealing mechanism is arranged, the position of the hot nozzle body and the fixed part is reinforced, the sealing property between the hot nozzle body and the flow distribution plate is enhanced, the liquid is not easy to leak in the flowing process, the effect of liquid circulation is improved, the flow guide mechanism arranged on the hot nozzle body can guide the liquid flowing in the hot nozzle body, the liquid can be prevented from overflowing excessively at the discharge port, and the flowing speed of the liquid is controlled.

[0014] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole structure schematic view of the utility model;

[0016] Fig. 2 It is the whole structure plane schematic view of the utility model;

[0017] Fig. 3 It is the partial section view schematic view of the shunt plate, the hot nozzle main body and the sealing mechanism structure of the utility model;

[0018] Fig. 4 It is the plane section view schematic view of the shunt plate, the hot nozzle main body and the sealing mechanism structure of the utility model;

[0019] Fig. 5 It is the exploded schematic view of the hot nozzle main body and the sealing mechanism structure of the utility model;

[0020] Fig. 6 It is the whole structure schematic view of the utility model; Fig. 4 It is the structure enlarged schematic view of A place in the middle.

[0021] Marked number in the drawing: 1, shunt plate;2, hot nozzle main body;3, heating assembly;31, limit groove;32, heating rod;33, connector;4, hot runner;5, fixed part;6, sealing mechanism;61, first fixed disc;62, second fixed disc;63, sealing cover;64, cover plate;65, first through hole;66, second through hole;67, positioning assembly;671, positioning bolt;672, fastening nut;7, sol gel channel;8, heating part;9, temperature controller;10, heat shield;11, flow guide mechanism;111, inner flow guide pipe;112, outer flow guide pipe;1121, upper flared mouth;1122, lower necking. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0023] The utility model provides a kind of hot nozzle, as shown in Figs. 1-6The structure of the hot nozzle of the hot runner mold shown comprises a distributor plate 1 and a hot nozzle body 2, the surface of the distributor plate 1 is provided with a heating assembly 3, the inside of the distributor plate 1 is provided with a hot runner 4 used in cooperation with the heating assembly 3, the outlet position of the hot runner 4 is connected with a fixing part 5, the upper end of the hot nozzle body 2 is inserted into the fixing part 5, the connecting position of the hot nozzle body 2 and the fixing part 5 is provided with a sealing mechanism 6, the fixing part 5 can be conveniently installed on the distributor plate 1 to butt joint the hot nozzle body 2 and the distributor plate 1, the sealing mechanism 6 can reinforce the insertion position between the hot nozzle body 2 and the fixing part 5, thereby enhancing the sealing property between the hot nozzle body 2 and the distributor plate 1, preventing the liquid from leaking during the flowing process, and improving the liquid flowing effect.

[0024] The center of the hot nozzle body 2 is provided with a sol channel 7, the outside of the sol channel 7 is provided with a heating part 8, the upper end of the heating part 8 is connected with a temperature controller 9, the surface of the heating part 8 is sleeved with a heat shield 10, the heat shield 10 is fixed on the hot nozzle body 2, the temperature controller 9 is installed on the surface of the heat shield 10, the lower end of the hot nozzle body 2 and the heat shield 10 is provided with a flow guide mechanism 11, the sol channel 7 can provide a channel for the liquid flowing, the heating part 8 and the temperature controller 9 can heat the surface of the hot nozzle body 2 and conveniently control the heating temperature, thereby keeping the liquid flowing in the hot nozzle body 2 at a normal speed, and the heat shield 10 can provide heat insulation protection for the heating part 8 and the hot nozzle body 2.

[0025] The sealing mechanism 6 comprises a first fixed disc 61 and a second fixed disc 62, the first fixed disc 61 is fixed on the fixing part 5, the second fixed disc 62 is fixed on the upper end of the hot nozzle body 2, the first fixed disc 61 and the second fixed disc 62 are adhered, the outside of the first fixed disc 61 and the second fixed disc 62 is sleeved with a sealing cover 63, the upper surface of the sealing cover 63 is placed with two cover plates 64, the center of the two cover plates 64 is clamped on the outside wall of the fixing part 5, the first fixed disc 61, the second fixed disc 62 and the sealing cover 63 are provided with a second through hole 66 at the corresponding position, the first through hole 65 and the second through hole 66 are inserted with a positioning assembly 67, the first fixed disc 61 and the second fixed disc 62 can connect the hot nozzle body 2 and the fixing part 5, the sealing cover 63 can then fix and seal the hot nozzle body 2 and the fixing part 5, the cover plate 64 and the positioning assembly 67 can then fix the sealing cover 63 on the first fixed disc 61 and the second fixed disc 62, thereby reinforcing the insertion position between the hot nozzle body 2 and the fixing part 5, enhancing the sealing property between the hot nozzle body 2 and the distributor plate 1, preventing the liquid from leaking during the flowing process, and improving the liquid flowing effect.

[0026] The positioning assembly 67 comprises a positioning bolt 671 inserted into the first through hole 65 and the second through hole 66, and the two ends of the positioning bolt 671 are provided with fastening nuts 672. By setting the cooperation of the positioning bolt 671 and the fastening nuts 672, the positions of the first fixing disc 61, the second fixing disc 62 and the sealing cover 63 can be conveniently fixed.

[0027] The heating assembly 3 comprises a limiting groove 31 formed in the flow distribution plate 1, and a heating rod 32 is installed in the limiting groove 31. The connecting end of the heating rod 32 is connected with a connector 33. By setting the heating rod 32 and the connector 33, the flow distribution plate 1 can be heated, so that the liquid can flow in the flow distribution channel of the flow distribution plate 1.

[0028] The flow guide mechanism 11 comprises an inner flow guide pipe 111 and an outer flow guide pipe 112. The inner flow guide pipe 111 is installed in the inner cavity of the hot nozzle body 2 and is located at the connection position of the liquid inlet of the hot nozzle body 2 and the hot runner 4. The outer flow guide pipe 112 is installed at the bottom end of the heat shield 10. The edge of the bottom end of the outer flow guide pipe 112 is provided with a cutting surface. The inner part of the outer flow guide pipe 112 is divided into an upper flared portion 1121 and a lower tapered portion 1122. The diameter of the upper flared portion 1121 is greater than the diameter of the sol channel 7, and the diameter of the lower tapered portion 1122 is smaller than the diameter of the sol channel 7. The liquid flowing in the inner part of the outer flow guide pipe 112 can be guided, the overflow at the discharge port can be avoided, and the flow speed of the liquid can be controlled.

[0029] In specific use, first, the hot nozzle body 2 is installed on the flow distribution plate 1. Then, the stability and sealing performance of the connection between the hot nozzle body 2 and the flow distribution plate 1 can be enhanced by the fixing member 5 and the sealing mechanism 6 arranged at the connection position of the hot nozzle body 2 and the flow distribution plate 1. The connection between the hot nozzle body 2 and the fixing member 5 can be achieved by the first fixing disc 61 and the second fixing disc 62 in the sealing mechanism 6. Then, the hot nozzle body 2 and the fixing member 5 can be fixed and sealed by the sealing cover 63. The sealing cover 63 can be fixed on the first fixing disc 61 and the second fixing disc 62 by the cover plate 64 and the positioning assembly 67, so as to reinforce the position of the hot nozzle body 2 and the fixing member 5. The sealing performance between the hot nozzle body 2 and the flow distribution plate 1 is enhanced, the liquid is not easy to leak during the flow process, the effect of the liquid flow is improved, the liquid flowing in the inner part of the inner flow guide pipe 111 and the outer flow guide pipe 112 of the flow guide mechanism 11 can be guided, the overflow at the discharge port can be avoided, and the flow speed of the liquid can be controlled.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot nozzle structure of a hot runner (4) mold comprising a manifold (1) and a hot nozzle body (2), characterized in that: The surface of the flow distribution plate (1) is provided with a heating assembly (3), the inside of the flow distribution plate (1) is provided with a hot runner (4) matched with the heating assembly (3), the outlet position of the hot runner (4) is connected with a fixing part (5), the upper end of the hot nozzle body (2) is inserted into the fixing part (5), and the connecting position of the hot nozzle body (2) and the fixing part (5) is provided with a sealing mechanism (6).

2. The hot nozzle structure of a hot runner (4) mold according to claim 1, characterized in that: The center of the hot nozzle body (2) is provided with a sol channel (7), a heating part (8) is installed outside the sol channel (7), the upper end of the heating part (8) is connected with a temperature controller (9), the surface of the heating part (8) is sleeved with a heat shield (10), the heat shield (10) is fixed on the hot nozzle body (2), the temperature controller (9) is installed on the surface of the heat shield (10), and the lower end of the hot nozzle body (2) and the heat shield (10) is provided with a flow guide mechanism (11).

3. The hot nozzle structure of a hot runner (4) mold according to claim 2, characterized in that: The sealing mechanism (6) comprises a first fixed disc (61) and a second fixed disc (62), the first fixed disc (61) is fixed on the fixing part (5), the second fixed disc (62) is fixed on the upper end of the hot nozzle body (2), the first fixed disc (61) and the second fixed disc (62) are attached, the outer side of the first fixed disc (61) and the second fixed disc (62) is sleeved with a sealing cover (63), the upper surface of the sealing cover (63) is placed with two cover plates (64), the center of the two cover plates (64) is clamped on the outer side wall of the fixing part (5), the first fixed disc (61), the second fixed disc (62) and the sealing cover (63) are provided with a second through hole (66) at the corresponding position, and the inner cavities of the first through hole (65) and the second through hole (66) are inserted with a positioning assembly (67).

4. The hot nozzle structure of a hot runner (4) mold according to claim 3, characterized in that: The positioning assembly (67) comprises a positioning bolt (671), the positioning bolt (671) is inserted into the first through hole (65) and the second through hole (66), and the two ends of the positioning bolt (671) are bolted with fastening nuts (672).

5. The hot nozzle structure of a hot runner (4) mold according to claim 1, characterized in that: The heating assembly (3) comprises a limiting groove (31), the limiting groove (31) is arranged on the flow distribution plate (1), and the heating rod (32) is installed in the limiting groove (31).

6. The hot nozzle structure of a hot runner (4) mold according to claim 2, characterized in that: The flow guide mechanism (11) comprises an inner flow guide pipe (111) and an outer flow guide pipe (112), the inner flow guide pipe (111) is installed in the inner cavity of the hot nozzle body (2), and the inner flow guide pipe (111) is located at the connecting position of the liquid inlet of the hot nozzle body (2) and the hot runner (4); the outer flow guide pipe (112) is installed at the bottom end of the heat shield (10), and the edge of the bottom end of the outer flow guide pipe (112) is provided with a cutting surface.

7. The hot nozzle structure of a hot runner (4) mold according to claim 6, characterized in that: The outer draft tube (112) is divided into an upper flared portion (1121) and a lower tapered portion (1122) in the internal section, the diameter of the upper flared portion (1121) is greater than that of the sol channel (7), and the diameter of the lower tapered portion (1122) is less than that of the sol channel (7).

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