CN214419437U

CN214419437U - Oblique ejector for injection mold

Info

Publication number: CN214419437U
Application number: CN202023278749.2U
Authority: CN
Inventors: 陈海军; 庞闯; 金永健; 姜小广; 郭庭; 卢宇
Original assignee: Future High Tech Co ltd
Current assignee: Future High Tech Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-19
Anticipated expiration: 2030-12-29

Abstract

The application relates to an inclined top for an injection mold, which relates to an injection molding mold and comprises an inclined top, wherein the inclined top comprises a butt joint surface, a driving rod is fixed on one side of the inclined top, which is far away from the butt joint surface, a heating element is arranged on one side of the inclined top, which is far away from the driving rod, and the heating element is positioned on the inner side of the inclined top; the heating element is communicated with a heating power supply. The method has the effect of reducing the occurrence of the condition that the molten material is contacted with the lower inclined top and is solidified earlier.

Description

Oblique ejector for injection mold

Technical Field

The application relates to an injection molding mold, in particular to an inclined ejector for an injection mold.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding is suitable for the fields of mass production, molding and processing of products with complex shapes and the like. In the production process, the completely molten material is stirred by a screw at a certain temperature, injected into a mold cavity by high pressure, cooled and solidified to obtain a molded product. Be provided with oil piping system among the injection mold, the in-process of moulding plastics, oil piping system heats the mould to make even flow of fused material in the mould, thereby reduce that the material of high temperature meets microthermal mould inner wall, lead to solidifying earlier near the material of mould inner wall, make the inhomogeneous condition of product structure take place.

The lifter is a component for performing lifter core-pulling and demolding on the injection mold, and when a product has a barb structure, a sliding groove is formed in the mold, the lifter is arranged in the sliding groove and is matched with the sliding groove in a sliding manner, and the product after mold opening is ejected. An included angle with a certain size is formed between the sliding direction of the pitched roof and the die sinking direction, and when the pitched roof slides, the barb and the die.

The inclined top in the injection mold is generally small, and is movably arranged in the mold and difficult to be communicated with an oil way aiming at the related technology. The inventors believe that during injection molding, when the temperature of the lifter is low and the molten material contacts the surface of the lifter located in the cavity of the mold, the temperature of the material in the cavity near the lifter decreases, and the material near the lifter solidifies first, which may result in uneven structure of the product injected by the mold.

SUMMERY OF THE UTILITY MODEL

In order to reduce the occurrence of the situation that the molten material is contacted with the lower pitched roof and is solidified earlier, the application provides a pitched roof for an injection mold.

The application provides an injection mold adopts following technical scheme with oblique top:

an inclined top for an injection mold comprises an inclined top, wherein the inclined top comprises a butting surface, a driving rod is fixed on one side of the inclined top, which is far away from the butting surface, a heating element is arranged on one side of the inclined top, which is far away from the driving rod, and the heating element is positioned on the inner side of the inclined top; the heating element is communicated with a heating power supply.

Through adopting above-mentioned technical scheme, the staff will push up the setting to one side in the mould, with heating member and heating power intercommunication, the actuating lever is fixed with drive arrangement, before the beginning of moulding plastics, opens heating power, pushes up to one side through the heating of heating member heating, makes to push up to one side and mould temperature the same, and the back of accomplishing of moulding plastics opens the mould, and drive arrangement drive actuating lever slides to ejecting mould with the product. In this way, it is helpful to uniformly cool the molten material, thereby stabilizing the product structure.

Preferably, the heating member is the heater strip, be provided with the spacing groove to one side on pushing up to one side, the heater strip is located the spacing groove, it is provided with import and export to push up to one side, import and export are worn to establish to one side along pushing up the outside to one side respectively to one side to the export, the heater strip penetrates the spacing groove along the import to wear out the spacing groove along exporting, heater strip and heating power supply intercommunication.

Through adopting above-mentioned technical scheme, the staff penetrates the heater strip along the import and pushes up to one side, wears out the heater strip from the export again, and convenient fixed heater strip reduces to one side and pushes up the motion in-process, and the heater strip deviates from the possibility in spacing groove.

Preferably, be provided with spacing post on the oblique top, spacing post is located the spacing inslot, spacing post axis direction is parallel with spacing groove depth direction, the heater strip coils and sets up on spacing post.

Through adopting above-mentioned technical scheme, the heater filament is around establishing on spacing post, and convenient fixed heater strip reduces the heater strip and removes in the spacing inslot, leads to the follow-up use of mould, and the heater filament takes place to the inhomogeneous condition of pitched roof heating.

Preferably, the limiting groove is open with the adjacent one side of one side that the limiting groove is close to the actuating lever and sets up to be formed with and open the notch, open the embedded limiting plate that is equipped with of notch, the limiting plate passes through fixing bolt fixed connection with pushing up to one side.

Through adopting above-mentioned technical scheme, the heater strip is put into along opening the notch to the staff, again with limiting plate and oblique top fixed connection, makes things convenient for the staff to place the heater strip, improves the stability of heater strip at the spacing inslot simultaneously.

Preferably, the fixing bolt penetrates through the limiting groove and is in threaded connection with the inclined top, and the heating wire is arranged on the fixing bolt in a winding mode.

Through adopting above-mentioned technical scheme, when adopting fixing bolt fixed limiting plate, fixed heater strip, simple structure makes things convenient for production and preparation pitched roof.

Preferably, the heating member is the heating pipe, one side that the heating pipe deviates from the butt face communicates with heating power supply, be provided with the butt groove in the oblique top, the butt groove runs through oblique top along the one side that the top is close to the actuating lever to one side, the heating pipe is located the butt inslot, be provided with the mounting that is used for fixed heating pipe on the oblique top.

Through adopting above-mentioned technical scheme, in the actual production, the staff is connected heating pipe one end and heating power supply, penetrates the butt inslot with the heating pipe from the one side that deviates from the butt face, and simple structure makes things convenient for the staff to install the heating member.

Preferably, the fixing piece is a fastening bolt, the axial direction of the fastening bolt is parallel to the radial direction of the heating pipe, the fastening bolt penetrates into the inclined top along the axial direction of the fastening bolt, and the end part of the fastening bolt is abutted against the outer side wall of the heating pipe.

Through adopting above-mentioned technical scheme, during fastening bolt precession pitched roof, fixed heating pipe helped improving the heating pipe in the stability of butt inslot, reduces pitched roof removal in-process, and the heating pipe deviates from the possibility of pitched roof.

Preferably, a cooling pipe is arranged in the inclined top.

Through adopting above-mentioned technical scheme, in the actual production, when moulding plastics and accomplish the back, let in the coolant liquid in to the cooling pipe, also let in the coolant liquid in the mould oil circuit simultaneously, make mould rapid cooling to accelerate the product and solidify, help improving product production efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by means of the heating element and the heating power supply, the situation that the molten material is contacted with the inclined top with lower temperature and is solidified earlier is reduced;

2. by means of the heating wires and the fixing bolts, the stability of the heating wires in the pitched roof is improved, and meanwhile, the contact area of the heating wires and the pitched roof is increased, so that the pitched roof is heated more uniformly;

3. with the help of heating pipe and fastening bolt, the heating member of easy to assemble helps reducing the heating pipe and deviates from the possibility of pushing up to one side.

Drawings

FIG. 1 is an axial schematic view of an integral structure of a lifter for an injection mold according to example 1 of the present application;

FIG. 2 is an axial view of the heating wire and the spacing groove structure in embodiment 1 of the present application;

FIG. 3 is a front view of the structure of a limiting groove and a cooling pipe in embodiment 1 of the present application;

FIG. 4 is an axial view of embodiment 2 of the present application, which mainly shows a pitched roof structure;

fig. 5 is a sectional view mainly showing the structure of a heating pipe and an abutting groove in embodiment 2 of the present application.

Reference numerals: 1. obliquely ejecting; 11. an abutting surface; 12. a limiting groove; 13. a groove is embedded; 14. a butt joint groove; 2. a limiting plate; 21. fixing the bolt; 3. a heating member; 31. heating wires; 32. heating a tube; 4. fastening a bolt; 5. a drive rod; 6. a cooling pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an oblique top for an injection mold.

Example 1:

referring to fig. 1, the lifter for the injection mold comprises a lifter 1, an abutting surface 11 is formed on the upper side of the lifter 1, and a driving rod 5 is fixed on one side of the lifter 1 departing from the abutting surface 11. In actual production, the lifter 1 is arranged in an injection mold, the abutting surface 11 is located in a cavity of the injection mold, the driving rod 5 is fixedly connected with the driving device, molten materials enter the mold, after injection molding is completed, the materials are cooled and formed, the mold is opened, the driving device drives the driving rod 5 to slide along the axial direction of the driving rod, and a cooled product is ejected out of the mold.

Specifically, referring to fig. 1 and 2, a horizontal side surface of the lifter 1 is provided with a limiting groove 12 from outside to inside, and an open notch is formed. The lower side of the inclined top 1 is provided with an inlet and an outlet from bottom to top, the inlet and the outlet are respectively positioned at the two side edges of the inclined top 1 in the width direction, and one ends of the inlet and the outlet, which are close to the limiting groove 12, are communicated with the limiting groove 12. Be provided with heating member 3 in the top 1 to one side, heating member 3 is heater strip 31, and heater strip 31 penetrates spacing groove 12 along the import to wear out spacing groove 12 along the export, heater strip 31 and heating power supply intercommunication. Before injection molding begins, a heating power supply is turned on, the heating wire 31 heats the inclined top 1, the temperature of the inner side wall of the mold is balanced, and the condition that the cooling speed of materials of all parts in the mold is different, so that the structure of a product is uneven, is reduced.

A limiting plate 2 is arranged in the pitched roof 1, the limiting plate 2 is located at the open slot, and the limiting plate 2 is fixedly connected with the pitched roof 1 through a fixing bolt 21. The axial direction of the fixing bolt 21 is parallel to the depth direction of the limiting groove 12, and the fixing bolt 21 penetrates through the limiting groove 12 along the axial direction of the fixing bolt and is in threaded connection with the pitched roof 1. The heating wire 31 is wound around the fixing bolt 21. Limiting plate 2 and spacing groove 12 make things convenient for the staff to install heater strip 31, wind heater strip 31 on fixing bolt 21 simultaneously, help fixing heater strip 31, help reducing the in-process that pushes up 1 removal to one side, heater strip 31 is along the import or export deviating from in the spacing groove 12, guarantees heater strip 31 even heating and pushes up 1 to one side simultaneously, influences the heating effect of heater strip 31 to pushing up 1 to one side in next work.

Referring to fig. 1 and 3, an embedded groove 13 is further formed in the bottom wall of the limiting groove 12, and a cooling pipe 6 is arranged in the embedded groove 13. In the actual production, after the completion of moulding plastics, let in the coolant liquid in the cooling tube 6, make the oblique top 1 and the mould rapid cooling simultaneously to make the interior molten material of mould cavity cool off the shaping fast, the convenient drawing of patterns helps improving production efficiency simultaneously.

The implementation principle of the embodiment 1 is as follows: in the installation, the staff penetrates the heater strip 31 and the heating power supply intercommunication in 6 embedding sunken inslots of cooling tube along the import with heater strip 31, with heater strip 31 around establishing on fixing bolt 21, wear out oblique top 1 with heater strip 31 along the export again, push up 1 fixed connection with limiting plate 2 and oblique simultaneously, will push up 1 to one side and slide and set up in the mould, with actuating lever 5 and drive arrangement fixed connection. Closing the mould, opening heating power supply, heater strip 31 heating pushes up 1 to one side, and the oil circuit in the mould heats the mould simultaneously, and the staff moulds plastics to the mould, and during the fused material got into the mould, when moulding plastics and accomplish the back, lets in the coolant liquid in the cooling tube 6, lowers the temperature to pushing up 1 to one side, and the oil circuit of mould has let in the coolant liquid and has wholly cooled down the mould simultaneously to make the material solidify the shaping. After cooling is finished, the mold is opened, the driving device drives the lifter 1 to slide along the axial direction of the driving rod 5, so that a product is ejected out of the mold, and the product demolding process is finished.

Example 2:

referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that: the inclined top 1 is provided with a butt-joint groove 14, and the butt-joint groove 14 penetrates through two side faces of the inclined top 1 in the vertical direction. The heating member 3 is a heating pipe 32, the heating pipe 32 is positioned inside the abutting groove 14, and the axial direction of the heating pipe 32 is parallel to the axial direction of the abutting groove 14. The side of the heating tube 32 facing away from the abutment surface 11 is in communication with a heating power supply. Be provided with fastening bolt 4 on the pitched roof 1, in fastening bolt 4 penetrated pitched roof 1 along one side of pitched roof 1 horizontal direction, fastening bolt 4 and pitched roof 1 threaded connection, fastening bolt 4's terminal surface supported the lateral wall of tight heating pipe 32.

The implementation principle of the embodiment 2 is as follows: in the installation, the staff, with heating pipe 32 and heating power supply intercommunication, penetrate butt joint groove 14 with heating pipe 32 from the oblique top 1 downside in, screw up fastening bolt 4, make fastening bolt 4's terminal surface butt heating pipe 32 lateral wall, will push up 1 to one side and slide and set up in the mould, with actuating lever 5 and drive arrangement fixed connection. Closing the mold, opening the heating power supply, heating the inclined top 1 by the heating pipe 32, simultaneously heating the mold by an oil circuit in the mold, injecting the mold by a worker, and enabling the molten material to enter the mold. After the product is cooled, the mold is opened, the driving device drives the lifter 1 to slide along the axial direction of the driving rod 5, so that the product is ejected out of the mold, and the product demolding process is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an injection mold is with pushing up to one side, includes to one side (1) to one side, pushes up (1) to one side including butt face (11) to one side, one side that deviates from butt face (11) pushes up (1) to one side is fixed with actuating lever (5), its characterized in that: one side of the pitched roof (1) departing from the driving rod (5) is provided with a heating part (3), and the heating part (3) is positioned on the inner side of the pitched roof (1); the heating element (3) is communicated with a heating power supply.

2. The lifter for injection molds according to claim 1, characterized in that: the heating member (3) is heater strip (31), be provided with spacing groove (12) on pushing up (1) to one side, heater strip (31) are located spacing groove (12), be provided with import and export on pushing up (1) to one side, import and export wear to establish oblique top (1) to the inboard along pushing up (1) outside to one side respectively to with spacing groove (12) intercommunication, import and export all are located one side that deviates from butt face (11) to one side of pushing up (1) to one side, heater strip (31) penetrate in spacing groove (12) along the import to wear out spacing groove (12) along the export, heater strip (31) and heating power supply intercommunication.

3. The lifter for injection molds according to claim 2, characterized in that: be provided with spacing post on oblique top (1), spacing post is located spacing groove (12), spacing post axis direction is parallel with spacing groove (12) depth direction, heater strip (31) coil and set up on spacing post.

4. The lifter for injection molds according to claim 2, characterized in that: spacing groove (12) are to be opened the setting with spacing groove (12) one side adjacent that is close to one side of actuating lever (5) to be formed with and open the notch, open the embedded limiting plate (2) that are equipped with of notch, limiting plate (2) and oblique top (1) pass through fixing bolt (21) fixed connection.

5. The lifter for injection molds according to claim 4, wherein: fixing bolt (21) run through spacing groove (12) to with oblique top (1) threaded connection, heater strip (31) coil and set up on fixing bolt (21).

6. The lifter for injection molds according to claim 1, characterized in that: the heating member (3) is heating pipe (32), one side and the heating power intercommunication that heating pipe (32) deviate from butt face (11), be provided with butt groove (14) in pushing up (1) to one side, butt groove (14) run through to one side that is close to actuating lever (5) along pushing up (1) to one side, heating pipe (32) are located butt groove (14), be provided with the mounting that is used for fixed heating pipe (32) on pushing up (1) to one side.

7. The lifter for injection molds according to claim 6, wherein: the fixing piece is a fastening bolt (4), the axial direction of the fastening bolt (4) is parallel to the radial direction of the heating pipe (32), the fastening bolt (4) penetrates into the inclined top (1) along the axial direction of the fastening bolt, and the end part of the fastening bolt (4) abuts against the outer side wall of the heating pipe (32).

8. The lifter for injection molds according to claim 1, characterized in that: and a cooling pipe (6) is arranged in the pitched roof (1).