CN217968168U

CN217968168U - Hot runner mold

Info

Publication number: CN217968168U
Application number: CN202220449860.3U
Authority: CN
Inventors: 周军; 朱俊杰; 徐涛; 郑嘉曦; 刘超
Original assignee: Rifeng Enterprise Tianjin Co ltd
Current assignee: Rifeng Enterprise Tianjin Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-12-06
Anticipated expiration: 2032-03-02

Abstract

The application discloses hot runner mold, including the mould body, be equipped with on the mould body: the upper end of the flow distribution plate is provided with a feed inlet, and the lower end of the flow distribution plate is provided with a discharge outlet communicated with the feed inlet; the concave template is positioned at the lower end of the flow distribution plate and can slide along the vertical direction, and a groove is formed in one end, away from the flow distribution plate, of the concave template; the convex die plate is positioned at one end, far away from the flow distribution plate, of the concave die plate, a convex block is arranged on the convex die plate, the convex block is inserted into the groove, and a pre-storage gap is arranged between the convex block and the groove to form a cavity; the extensible member, the extensible member is located the flow distribution plate with between the die board, just the extensible member is equipped with first material mouth and the second material mouth of mutual intercommunication, first material mouth with the discharge gate is linked together, the second material mouth with the die cavity is linked together.

Description

Hot runner mold

Technical Field

The disclosure relates to the field of mold manufacturing, in particular to a hot runner mold.

Background

The hot runner mold is heated to ensure the molten state of the runner and sprue. Because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that raw materials in the runner are kept molten, the runner is not required to be opened to take out the solidified materials after the machine is stopped, and the runner is only required to be heated to the required temperature when the machine is started again.

Different kinds of raw and other materials need correspond the different runner sizes of design, but in prior art, when the work piece of the nevertheless unified shape of preparation different materials, for guaranteeing the quality of moulding plastics, need design the different mould of two sets of runner lengths, greatly reduced the suitability and the economic nature of mould.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a hot runner mold, including a mold body, on which:

the upper end of the flow distribution plate is provided with a feed port, and the lower end of the flow distribution plate is provided with a discharge port communicated with the feed port;

the concave template is positioned at the lower end of the flow distribution plate and can slide along the vertical direction, and a groove is formed in one end, away from the flow distribution plate, of the concave template;

the convex die plate is positioned at one end, far away from the flow distribution plate, of the concave die plate, a convex block is arranged on the convex die plate, the convex block is inserted into the groove, and a pre-storage gap is arranged between the convex block and the groove to form a cavity;

the extensible member, the extensible member is located the flow distribution plate with between the die board, just the extensible member is equipped with the first material mouth and the second material mouth that communicate each other, first material mouth with the discharge gate is linked together, the second material mouth with the die cavity is linked together.

According to the technical scheme provided by the embodiment of the application, the die body is further provided with a panel, and the panel is positioned at the upper end of the flow distribution plate and fixedly connected with the flow distribution plate; the panel with be equipped with the guide between the die board, the guide is equipped with along the gliding first branch end of vertical direction and second branch end, first branch end with the panel is connected, the second branch end with the die board is connected.

According to the technical scheme provided by the embodiment of the application, the guide piece comprises two groups of guide sleeves, namely a first guide sleeve and a second guide sleeve, wherein the two groups of guide sleeves are respectively arranged on the panel and the cavity plate, a driving rod is arranged between the first guide sleeve and the second guide sleeve, and the driving rod is connected with the two groups of guide sleeves through threads.

According to the technical scheme provided by the embodiment of the application, the telescopic piece comprises a first pipe piece and a second pipe piece which are coaxially arranged, the first pipe piece is hollow, and a sliding cavity is formed; the second pipe fitting is hollow and can be slidably mounted in the sliding cavity, and the sliding direction of the second pipe fitting is vertical.

According to the technical scheme that this application embodiment provided, be equipped with the spacing groove on the first pipe fitting, be equipped with the stopper on the second pipe fitting, the stopper can with the spacing inslot wall offsets, carries out axial spacing with carrying out the second pipe fitting.

According to the technical scheme provided by the embodiment of the application, still be equipped with the heat insulating board on the mould body, the heat insulating board does the flow distribution plate with between the convex die board, the inside cavity of heat insulating board forms thermal-insulated chamber, the intracavity that insulates against heat is equipped with thermal-insulated medium.

The invention has the beneficial effects that: the application discloses a hot runner mold, which is characterized in that a mold body is taken as a base, and a flow distribution plate, a concave mold plate, a convex mold plate and a telescopic piece are arranged on the mold body; the upper end of the flow distribution plate is provided with a feed port, and the lower end of the flow distribution plate is provided with a discharge port communicated with the feed port; the concave template can be installed below the flow distribution plate in a sliding mode along the vertical direction, and a groove is formed in the concave template; the convex die plate is positioned at one end of the concave die plate, which is far away from the flow distribution plate, a convex block is arranged on the convex die plate, the convex block is inserted into the groove, and a pre-stored gap is arranged between the convex block and the groove to form a cavity; and a first material port and a second material port which are communicated with each other are arranged on the telescopic piece and are respectively communicated with the discharge port and the cavity.

The heated and melted raw materials sequentially pass through a feeding hole and a discharging hole of the flow distribution plate, a first material hole and a second material hole of the telescopic piece, finally enter the cavity, and are cooled to complete injection molding; when changing raw and other materials material, through the adjustment the first material mouth of extensible member and the distance of second material mouth can realize the change to shunting to the size.

Through setting up the extensible member, can realize that the distance between first material mouth and the second material mouth is adjustable, be equivalent to the length of adjustable subchannel to realized a tractor serves several purposes, promoted the economic nature and the suitability of mould.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of one embodiment of a hot-runner mold of the present application;

FIG. 2 is a schematic view of a manifold of a hot runner mold of the present application;

FIG. 3 is a schematic view of an actuating rod of a hot runner mold of the present application;

FIG. 4 is a schematic view of a hot runner mold extension of the present application;

1. a splitter plate; 10. a feed inlet; 11. a discharge port; 2. a cavity plate; 3. a convex template; 4. A telescoping member; 40. a first pipe member; 40-1, a limiting groove; 41. a second pipe member; 41-1 and a limiting block; 5. a panel; 50. positioning a ring; 60. a first guide sleeve; 61. a second guide sleeve; 62. a drive rod; 62-1 and hexagonal bolts.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

Referring to fig. 1, a hot runner mold includes a mold body, wherein: the device comprises a flow distribution plate 1, wherein the upper end of the flow distribution plate 1 is provided with a feed inlet 10, and the lower end of the flow distribution plate 1 is provided with a discharge outlet 11 communicated with the feed inlet 10; the concave die plate 2 is positioned at the lower end of the flow distribution plate 1 and can slide along the vertical direction, and a groove is formed in one end, far away from the flow distribution plate 1, of the concave die plate 2; the convex die plate 3 is positioned at one end, far away from the flow distribution plate 1, of the concave die plate 2, a convex block is arranged on the convex die plate 3, the convex block is inserted into the groove, and a pre-storage gap is arranged between the convex block and the groove to form a cavity; the extensible member 4, extensible member 4 is located flow distribution plate 1 with between the die cavity board 2, just extensible member 4 is equipped with the first material mouth and the second material mouth of mutual intercommunication, first material mouth with discharge gate 11 is linked together, the second material mouth with the die cavity is linked together.

The raw materials which are heated and melted sequentially pass through a feeding port 10 and a discharging port 11 of the flow distribution plate 1, a first material port and a second material port of the telescopic piece 4 and finally enter the cavity to finish injection molding; when changing the material of moulding plastics, the adjustment the first material mouth of extensible member 4 and the distance of second material mouth can realize the change to the reposition of redundant personnel to the size.

Through setting up extensible member 4, can realize that the distance between first material mouth and the second material mouth is adjustable, be equivalent to the length of adjustable subchannel to realized a tractor serves several purposes, shortened the process before raw and other materials flow into the die cavity as far as, on the one hand, can improve cooling rate, shorten the preparation cycle, on the other hand reduces mouth of a river quality, reduces the rejection rate.

Furthermore, a panel 5 is further arranged on the die body, and the panel 5 is located at the upper end of the flow distribution plate 1 and is fixedly connected with the flow distribution plate 1; the panel 5 with be equipped with the guide between the die board 2, the guide is equipped with along the gliding first branch end of vertical direction and second branch end, first branch end with the panel 5 is connected, the second branch end with die board 2 is connected.

The panel 5 is used for temperature control, the raw materials are kept in a molten state, the upper end of the panel 5 is provided with a positioning ring 50, and the positioning ring 50 is used for positioning a nozzle of an injection molding machine.

The guide piece comprises two groups of guide sleeves which are respectively arranged on the panel 5 and the cavity plate 2, namely a first guide sleeve 60 and a second guide sleeve 61, a driving rod 62 is arranged between the first guide sleeve 60 and the second guide sleeve, and the driving rod 62 and the two groups of guide sleeves are connected through threads.

The inner walls of the first guide sleeve 60 and the second guide sleeve 61 are provided with internal threads, the driving rod 62 is provided with external threads, the middle of the driving rod 62 is provided with a hexagon bolt 62-1, and the hexagon bolt 62-1 is welded with the driving rod 62.

The working principle is as follows: the hexagon bolt 62-1 is driven to rotate by a wrench, so that the driving rod 62 is driven to rotate along the axis thereof, the first guide sleeve 60 is driven to move downwards through screw transmission, the second guide sleeve 61 moves upwards, and the distance between the flow distribution plate 1 and the cavity plate 2 is reduced.

Further, the telescopic part 4 comprises a first pipe 40 and a second pipe 41 which are coaxially arranged, wherein the first pipe 40 is hollow to form a sliding cavity; the second pipe 41 is hollow inside and slidably mounted in the sliding cavity, and the sliding direction is vertical.

Wherein, first pipe fitting 40 with flow distribution plate 1 bolted connection, second pipe fitting 41 with die fixed connection, just first pipe fitting 40 with second pipe fitting 41 clearance fit is favorable to second pipe fitting 41 to be in the slip of first pipe fitting 40 inner wall. Preferably, the inner wall of the first pipe 40 is provided with a sealing ring to prevent the outflow of raw materials from affecting the molding quality of the mold.

Furthermore, a limiting groove 40-1 is formed in the first pipe fitting 40, a limiting block 41-1 is formed in the second pipe fitting 41, and the limiting block 41-1 can abut against the inner wall of the limiting groove 40-1 to axially limit the second pipe fitting 41.

The first pipe fitting 40 is provided with two groups of limiting blocks 41-1 along the circumferential direction, the inner wall of the first pipe fitting 40 is provided with two groups of limiting grooves 40-1, and the convex block can slide in the limiting grooves 40-1 until the convex block abuts against the inner wall of the bottom of the limiting grooves 40-1, so that the second pipe fitting 41 is prevented from being separated from the first pipe fitting 40.

The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a hot runner mold, its characterized in that, includes the mould body, be equipped with on the mould body:

the device comprises a flow distribution plate (1), wherein the upper end of the flow distribution plate (1) is provided with a feed inlet (10), and the lower end of the flow distribution plate is provided with a discharge outlet (11) communicated with the feed inlet (10);

the concave template (2) is positioned at the lower end of the flow distribution plate (1) and can slide along the vertical direction, and a groove is formed in one end, far away from the flow distribution plate (1), of the concave template (2);

the convex die plate (3) is positioned at one end, far away from the flow distribution plate (1), of the concave die plate (2), a convex block is arranged on the convex die plate (3), the convex block is inserted into the groove, and a pre-storage gap is formed between the convex block and the groove to form a cavity;

extensible member (4), extensible member (4) are located flow distribution plate (1) with between die cavity board (2), just extensible member (4) are equipped with the first material mouth and the second material mouth that communicate each other, first material mouth with discharge gate (11) are linked together, the second material mouth with the die cavity is linked together.

2. The hot-runner mold of claim 1, wherein: the die body is also provided with a panel (5), and the panel (5) is positioned at the upper end of the flow distribution plate (1) and is fixedly connected with the flow distribution plate (1); panel (5) with be equipped with the guide between formboard (2), the guide is equipped with along the gliding first branch end of vertical direction and second branch end, first branch end with panel (5) are connected, the second branch end with formboard (2) are connected.

3. A hot-runner mold, according to claim 2, wherein: the guide piece comprises two groups of guide sleeves which are respectively arranged on the panel (5) and the cavity plate (2), namely a first guide sleeve (60) and a second guide sleeve (61), a driving rod (62) is arranged between the first guide sleeve (60) and the second guide sleeve (61), and the driving rod (62) is connected with the two groups of guide sleeves through threads.

4. The hot-runner mold of claim 1, wherein: the telescopic piece (4) comprises a first pipe piece (40) and a second pipe piece (41) which are coaxially arranged, and the first pipe piece (40) is hollow to form a sliding cavity; the second pipe fitting (41) is hollow inside and can be slidably mounted in the sliding cavity, and the sliding direction of the second pipe fitting is vertical.

5. The hot-runner mold of claim 4, wherein: the first pipe fitting (40) is provided with a limiting groove (40-1), the second pipe fitting (41) is provided with a limiting block (41-1), and the limiting block (41-1) can abut against the inner wall of the limiting groove (40-1) and is used for axially limiting the second pipe fitting (41).