CN214294232U

CN214294232U - Novel injection mold ox horn runner mechanism

Info

Publication number: CN214294232U
Application number: CN202022758669.0U
Authority: CN
Inventors: 沈亮涵; 石波; 梁贵东
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-28
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a novel injection mold ox horn runner mechanism, advance jiao kou and external mold including ox horn mold insert, ox horn, the ox horn mold insert is detachable to be fixed in the front side of external mold, the top of ox horn mold insert is provided with the first runner that supplies the fluid flow of moulding plastics, the ox horn advance jiao kou set up in the front side of first runner, the rear side top of external mold is provided with the second runner that supplies the fluid flow of moulding plastics, the rear portion of first runner with the anterior intercommunication of second runner supplies the fluid of moulding plastics to mould plastics and forms ox horn runner body, the below of second runner vertically is provided with first passageway, the top of first passageway with second runner intercommunication, the anterior dive formula of first runner set up in the inside of ox horn mold insert. The utility model discloses a novel injection mold ox horn runner mechanism simple structure, injection product stable in quality, reduced the manual work and repaired the runner cost and realized moulding plastics the automation.

Description

Novel injection mold ox horn runner mechanism

Technical Field

The utility model relates to a technical field of mould plastics especially relates to a novel injection mold ox horn runner mechanism.

Background

At present, basically, each injection molding machine needs a worker to trim a sprue manually, and the injection molding cost is high; the automation and the unmanned injection molding become a requirement. The technology of automatically breaking the gate in the mold becomes a demand, and the most typical technology of automatically breaking the gate in the mold is a horn gate.

The gate sectional area of the horn gate in the prior art is too small, the diameter is 0.5mm-2mm, the glue feeding amount is small, and as shown in figure 1, the injection molding pressure is too large, the injection molding process window is small, and the injection molding product defects are increased.

Disclosure of Invention

The utility model relates to a solve not enough among the prior art and accomplish, the utility model aims at providing a simple structure, injection moulding product stable in quality, reduced artifical runner cost of repairing and realize moulding plastics automatic novel injection mold ox horn runner mechanism.

The utility model discloses a novel injection mold ox horn runner mechanism, including ox horn mold insert, ox horn advance jiao kou and external mold, the ox horn mold insert detachable be fixed in the front side of external mold, the top of ox horn mold insert is provided with the first runner that supplies the injection molding fluid to flow, ox horn advances jiao kou set up in the front side of first runner, first runner passes through ox horn advances jiao kou and product cavity intercommunication, the rear side top of external mold is provided with the second runner that supplies the injection molding fluid to flow, the rear portion of second runner is with injecting glue passageway intercommunication, the rear portion of first runner with the front portion of second runner communicate and supply the injection molding fluid to mould plastics and form ox horn runner body, the below of second runner vertically is provided with the first passageway that supplies first thimble reciprocating motion, the upper portion of first thimble with the bottom of ox horn runner body can be relieved formula fixed, the top of the first channel is communicated with the second flow passage, and the front part of the first flow passage is arranged inside the ox horn insert in a submerged mode.

The utility model discloses a novel injection mold ox horn runner mechanism can also be:

the cross section of the oxhorn glue inlet is in a shape of a long strip and an ellipse.

A first gap is formed between the upper portion of the first ejector pin and the first channel, and the lower portion of the first ejector pin is in releasable sliding connection with the first channel.

The distance of the first gap is set to be 0.4-0.8 mm.

The second channel is arranged behind the first channel and used for a second thimble to reciprocate, the second thimble is detachably fixed with the bottom of the ox horn sprue body, and the second channel is communicated with the second channel.

And a second gap is formed between the upper part of the second thimble and the second channel, and the lower part of the second thimble is in releasable sliding connection with the second channel.

The distance of the second gap is set to be 0.4-0.8 mm.

The horn insert is integrally fixed with a first bulge at a position corresponding to the bottom of the rear end of the first flow channel.

And a second bulge is integrally fixed at the position of the ox horn insert corresponding to the bottom of the front end of the second flow passage.

The first protrusion and the second protrusion are spliced to form a protrusion body with a circular arc-shaped longitudinal section.

The utility model discloses a novel injection mold ox horn runner mechanism, including ox horn mold insert, ox horn advance jiao kou and external mold, the ox horn mold insert detachable be fixed in the front side of external mold, the top of ox horn mold insert is provided with the first runner that supplies the injection molding fluid to flow, ox horn advances jiao kou set up in the front side of first runner, first runner passes through ox horn advances jiao kou and product cavity intercommunication, the rear side top of external mold is provided with the second runner that supplies the injection molding fluid to flow, the rear portion of second runner is with injecting glue passageway intercommunication, the rear portion of first runner with the front portion of second runner communicate and supply the injection molding fluid to mould plastics and form ox horn runner body, the below of second runner vertically is provided with the first passageway that supplies first thimble reciprocating motion, the upper portion of first thimble with the bottom of ox horn runner body can be relieved formula fixed, the top of the first channel is communicated with the second flow passage, and the front part of the first flow passage is arranged inside the ox horn insert in a submerged mode. Therefore, the ox horn insert is detachably fixed on the front side of the outer die, when different injection molding parts are dealt with, the needed ox horn glue inlet is different, so that the outer die can be provided with a plurality of ox horn inserts with different ox horn glue inlets, when different products are injected, the ox horn insert only needs to be detached from the outer die, and the ox horn insert matched with the product is replaced. The front part of the first runner is arranged inside the ox horn insert in a submerged manner, the first runner is communicated with a product cavity through the ox horn glue inlet, so that injection molding fluid flows into the product cavity in a direction close to the arrangement direction of products and is vertically injected into the product cavity, the cross section area of the ox horn sprue body and the product fracture surface is minimized, the rear part of the second runner is communicated with the glue injection channel, the rear part of the first runner is communicated with the front part of the second runner, the first runner is communicated with the product cavity through the ox horn glue inlet, when the products are injected, the injection molding fluid flows into the product cavity from the glue injection channel firstly, and then sequentially flows into the product cavity through the first runner and the ox horn glue inlet, and when the injection molding fluid fills the whole product cavity, the glue injection molding channel stops injecting the injection molding fluid into the second runner, after the injection molding fluid is cooled, because the first channel is communicated with the second channel, when the first thimble moves upwards along the first channel, the top of the first channel can be inserted into the second channel, so that the rear part of the ox horn sprue body is ejected out of the second channel, the front part of the ox horn sprue body is arranged inside the ox horn insert in a submerged manner because of the first channel, and then the front part of the ox horn sprue body is extracted out of the rear part of the first channel along with the upward movement of the first thimble, when the front end of the ox horn sprue body is extracted, because the first channel and the product cavity only have a small connecting part of the ox horn glue inlet, when the ox horn sprue body is ejected by the first thimble for 1-3mm, the front part of the ox horn sprue body is automatically broken with the injection molding product, the sprue trimming station is omitted, the cost of manually trimming the sprue is reduced, the ox horn sprue body is still detachably fixed with the first ejector pin when being ejected, and the manipulator can grab and separate the ox horn sprue body from the first ejector pin, so that a product can be directly conveyed to the next process by a conveying belt, and the injection molding automation is realized. The utility model discloses a novel injection mold ox horn runner mechanism is, for prior art's advantage: simple structure, injection molding product stable quality, reduced artifical runner cost of repairing and realized moulding plastics the automation.

Drawings

Fig. 1 is a schematic view of a prior art bullhorn gate structure.

Fig. 2 the utility model relates to a novel injection mold ox horn runner mechanism ox horn runner body schematic diagram.

Fig. 3 the utility model relates to a novel injection mold ox horn runner mechanism structure schematic diagram.

Fig. 4 the utility model relates to a novel injection mold ox horn runner mechanism ox horn mold insert schematic structure.

Fig. 5 the utility model relates to a novel injection mold ox horn runner mechanism right side mold insert schematic structure.

Fig. 6 the utility model relates to a novel injection mold ox horn runner mechanism left side mold insert schematic structure.

Fig. 7 is a schematic view of a novel injection mold ox horn gate mechanism when the ox horn gate body is not jacked up.

Fig. 8 the utility model relates to a novel injection mold ox horn runner mechanism ox horn runner body schematic diagram when jack-up 0.5 mm.

Fig. 9 the utility model relates to a novel injection mold ox horn runner mechanism ox horn runner this integument by 2 mm's schematic diagram of jack-up.

Fig. 10 is a schematic view of a novel injection mold ox horn gate mechanism when the ox horn gate body is completely jacked up.

Description of the figures

1 … ox horn runner body 2 … ox horn insert 3 … ox horn glue inlet

4 … overmold 5 … first flow passage 6 … second flow passage

7 … first channel 8 … second channel 9 … first thimble

10 … second thimble 11 … first platform 12 … left insert

13 … right insert 14 … first gap 15 … second gap

16 … first projection 17 … second projection 18 … product cavity

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a novel injection mold ox horn runner mechanism bilateral symmetry, with the ox horn advances jiao kou 3 in the front side, second passageway 8 is at the rear side, second passageway 6 is at the upside, second passageway 8 is at the downside, left side mold insert 12 is in the left side, right side mold insert 13 is on the right side to confirm the direction of "preceding", "back", "upper", "lower", "left", "right" with this.

The novel injection mold oxhorn gate mechanism of the present invention will be described in further detail with reference to fig. 2 to 10 of the drawings.

The utility model relates to a novel injection mold ox horn runner mechanism, please refer to relevant figures in figures 2-10, including ox horn mold insert 2, ox horn advance jiao kou 3 and external mold 4, ox horn mold insert 2 is detachably fixed in the front side of external mold 4, the top of ox horn mold insert 2 is provided with the first runner 5 that supplies the injection molding fluid to flow, ox horn advances jiao kou 3 and sets up in the front side of first runner 5, first runner 5 advances jiao kou 3 through the ox horn and communicates with product cavity 18, the rear side top of external mold 4 is provided with the second runner 6 that supplies the injection molding fluid to flow, the rear portion of second runner 6 communicates with the injecting glue passageway, the rear portion of first runner 5 and the front portion of second runner 6 communicate and supply the injection molding fluid to form ox horn runner body 1 by injection molding, the below of second runner 6 vertically is provided with first passageway 7 that supplies first thimble 9 reciprocating motion, the top of the first channel 7 is communicated with the second flow channel 6, the upper part of the first thimble 9 is fixed with the bottom of the ox horn gate body 1 in a releasable way, and the front part of the first flow channel 5 is arranged in the ox horn insert 2 in a submerged way. Thus, the ox horn insert 2 is detachably fixed at the front side of the outer mold 4, and when various injection molding parts are dealt with, the needed ox horn glue inlets 3 are all different, so that a plurality of ox horn inserts 2 with different ox horn glue inlets 3 can be provided for the outer mold 4, and when different products are injected, only the ox horn insert 2 needs to be detached from the outer mold 4, and the ox horn insert 2 matched with the products is replaced. The front part of the first runner 5 is arranged inside the ox horn insert 2 in a submerged manner, the first runner 5 is communicated with a product cavity 18 through the ox horn glue inlet 3, so that the injection fluid flows into the product cavity 18 in a direction close to the arrangement direction of the product and is vertically injected into the product cavity 18, the cross-sectional area of the ox horn sprue body 1 and the cross-sectional area of the product fracture surface are minimized, the rear part of the second runner 6 is communicated with the glue injection channel, the rear part of the first runner 5 is communicated with the front part of the second runner 6, the first runner 5 is communicated with the product cavity 18 through the ox horn glue inlet 3, when the product is injected, the injection fluid firstly flows into the second runner 6 through the glue injection channel and is sequentially injected into the product cavity 18 through the first runner 5 and the ox horn glue inlet 3, and after the whole product cavity 18 is filled with the injection fluid, the injection channel stops injecting injection fluid into the second flow channel 6, after the injection fluid is cooled, because the first channel 7 is communicated with the second flow channel 6, when the first thimble 9 moves upwards along the first channel 7, the first thimble 9 can be inserted into the second flow channel 6 from the top of the first channel 7, so that the rear part of the ox horn sprue body 1 is ejected out of the second flow channel 6, the front part of the ox horn sprue body 1 is arranged in the ox horn insert 2 in a submerged manner because the first flow channel 5 is arranged in the ox horn insert 2, further the front part of the ox horn sprue body 1 is extracted from the rear part of the first flow channel 5 along with the upward movement of the first thimble 9, and when the front end of the ox horn sprue body 1 is extracted, because the first flow channel 5 and the product cavity 18 only have a small connecting part of the ox horn inlet 3, therefore, when the ox horn sprue body 1 is just ejected by the first ejector pin 9 by 1-3mm, the front part of the ox horn sprue body is automatically broken with an injection product, a sprue repairing station is omitted, the cost of manually trimming the sprue is reduced, the ox horn sprue body 1 is still detachably fixed with the first ejector pin 9 when being ejected, and a manipulator can grab and separate the ox horn sprue body 1 from the first ejector pin 9, so that the product can be directly conveyed to the next process by a conveying belt, and the injection automation is realized. The utility model discloses a novel injection mold ox horn runner mechanism is, for prior art's advantage: simple structure, injection molding product stable quality, reduced artifical runner cost of repairing and realized moulding plastics the automation.

The utility model discloses a novel injection mold ox horn runner mechanism please refer to in 2 to 10 relevant each pictures of drawing, can also be on the basis of preceding technical scheme: the top surface of the ox horn insert 2 at the position corresponding to the periphery of the ox horn glue inlet 3 is provided with a first platform 11, and the first platform 11 is detachably abutted to the product cavity 18. Therefore, the first platform 11 is arranged on the upper surface of the horn insert 2 at the position corresponding to the periphery of the horn glue inlet 3, the upper surface of the first platform 11 and the lower surface of the product cavity 18 are kept against each other in the injection molding process, injection molding fluid is prevented from flowing into a gap between the first platform 11 and the product cavity 18 in the injection molding process, and the fracture of the horn gate body 1 and a product can be smoother when the horn gate body and the product are automatically snapped due to the arrangement of the first platform 11. According to a further preferable technical scheme, the ox horn insert 2 comprises a left insert 12 and a right insert 13 which are fixed in a bilateral symmetry and detachable mode, the left portion and the right portion of the first flow passage 5 are arranged on the right portion of the left insert 12 and the left portion of the right insert 13 in a bilateral symmetry mode, and the left portion and the right portion of the ox horn gold corner opening are arranged on the right portion of the left insert 12 and the left portion of the right insert 13 in a bilateral symmetry mode. Therefore, the horn insert 2 can be conveniently detached into the left insert 12 and the right insert 13 during cleaning or maintenance, and the whole first flow passage 5 is completely exposed for cleaning or maintenance.

The utility model discloses a novel injection mold ox horn runner mechanism please refer to in 2 to 10 relevant each pictures of drawing, can also be on the basis of preceding technical scheme: the cross section of the ox horn glue inlet 3 is in a shape of a long strip and an ellipse. Like this, the cross section is rectangular form oval the ox horn advances jiao kou 3 size by the increase for the window of the production technology of moulding plastics is enlarged, and then has promoted the stability of injection moulding product quality. The further preferable technical scheme is that the size of the cross section of the ox horn glue inlet 3 is set to be a long strip-shaped ellipse with the length of 12.5mm and the width of 1.5 mm. Therefore, the glue feeding amount of the section of the ox horn glue inlet 3 can be increased, so that the injection molding fluid can be more stably injected into the product cavity 18 until the product cavity 18 is completely filled, the pressure of injection molding is reduced, and the probability of generating defects of injection molding products is further reduced.

The utility model discloses a novel injection mold ox horn runner mechanism please refer to in 2 to 10 relevant each pictures of drawing, can also be on the basis of preceding technical scheme: a first gap 14 is arranged between the upper part of the first thimble 9 and the first channel 7, and the lower part of the first thimble 9 is in releasable sliding connection with the first channel 7. Thus, the first gap 14 is disposed between the upper portion of the first thimble 9 and the first channel 7, the lower portion of the first thimble 9 is detachably slidably connected to the first channel 7, and the first channel 7 is communicated with the second flow channel 6, when performing injection molding, injection molding fluid can be injected into only the first gap 14 through the second flow channel 6, that is, between the upper portion of the first thimble 9 and the first channel 7, and does not continuously flow into between the lower portion of the first thimble 9 and the first channel 7, so that the lower portion of the rear side of the bullhorn sprue body 1 is sleeved on the first thimble 9, when the first thimble 9 ejects the bullhorn sprue body 1, the bullhorn sprue body 1 can be sleeved on the first thimble 9, thereby preventing the front portion of the bullhorn sprue body 1 from being popped off by elastic force generated when the front portion of the bullhorn sprue body 1 is completely separated from the first flow channel 5, and then make things convenient for the manipulator to right ox horn runner body 1 presss from both sides and gets. A further preferred technical solution is that the distance of the first gap 14 is set to 0.4-0.8 mm. Thus, in the process that the ox horn gate body 1 is ejected, because the front portion of the ox horn gate body 1 is bent to generate an elastic force, if the distance of the first gap 14 is less than 0.4mm, the back action of the elastic force may not be borne because the thickness is too small, and then the ox horn gate body 1 is broken at the position corresponding to the first gap 14 and ejected, the manipulator cannot correctly clamp the ox horn gate body 1, but if the distance of the first gap 14 is more than 0.8mm, the phenomenon that the thickness of the ox horn gate body 1 at the position corresponding to the first gap 14 is too large because the thickness of the ox horn gate body 1 is too large, the ox horn gate body 1 is excessively and firmly sleeved on the first ejector pin 9, and the manipulator cannot easily clamp the ox horn gate body 1 from the first ejector pin 9. A further preferable technical scheme is that the longitudinal section of the upper part of the first thimble 9 is an isosceles trapezoid. Like this, the upper portion of first thimble 9 does first clearance 14 provides dodges the space, makes ox horn runner body 1 with the diameter of the contact department of first thimble 9 from top to bottom grow gradually, makes things convenient for the manipulator to press from both sides and gets when ox horn runner body 1 will ox horn runner body 1 is followed the top of first thimble 9 is taken out.

The utility model discloses a novel injection mold ox horn runner mechanism please refer to in 2 to 10 relevant each pictures of drawing, can also be on the basis of preceding technical scheme: the second channel 6 is also provided with a second channel 8 for a second thimble 10 to reciprocate behind the first channel 7, the second thimble 10 is fixed with the bottom of the ox horn gate body 1 in a releasable manner, and the second channel 8 is communicated with the second channel 6. Thus, the first thimble 9 and the second thimble 10 eject the ox horn gate body 1 from the second flow channel 6 at the same time, the first thimble 9 is mainly used for ejecting the ox horn gate body 1 from the second flow channel 6, the second thimble 10 is not used for preventing the ox horn gate body 1 from shifting, in order to realize mechanized production, the position where the manipulator clamps the ox horn gate body 1 must be kept consistent, otherwise the manipulator cannot automatically judge the position of the ox horn gate body 1, therefore, the second thimble 10 is arranged behind the first thimble 9, the second thimble 10 and the first thimble 9 fix the ox horn gate body 1 in a releasable way, two points determine the direction of a straight line, and the first thimble 9 and the second thimble 10 limit the position of the ox horn gate body 1 in the X direction and the Y direction in the ejection process, and the ox horn runner body 1 respectively with first thimble 9 with second thimble 10 is fixed with the formula of can relieving, promptly in Z upwards to ox horn runner body 1 has carried out spacingly, like this, the position of ox horn runner body 1 after being ejecting is by spacing completely, the manipulator alright follow same position every time the ox horn runner body 1 is got to the clamp. A further preferred technical solution is that a second gap 15 is provided between an upper portion of the second thimble 10 and the second channel 8, and a lower portion of the second thimble 10 is releasably and slidably connected to the second channel 8. Thus, the second gap 15 is disposed between the upper portion of the second thimble 10 and the second channel 8, the lower portion of the second thimble 10 is slidably connected to the second channel 8 in a releasable manner, and the second channel 8 is communicated with the second flow channel 6, so that during injection, the injection fluid can be injected into only the second gap 15 through the second flow channel 6, that is, between the upper portion of the second thimble 10 and the second channel 8, and does not continuously flow into between the lower portion of the second thimble 10 and the second channel 8, so that the lower portion of the rear side of the bullhorn gate body 1 is sleeved on the second thimble 10, and when the second thimble 10 ejects the bullhorn gate body 1, the bullhorn gate body 1 can be sleeved on the second thimble 10, thereby preventing the front portion of the bullgate body 1 from being flicked off by the elastic force generated when the front portion of the bullgate body 1 is completely separated from the second flow channel 6, and then make things convenient for the manipulator to right ox horn runner body 1 presss from both sides and gets. A further preferred solution is that the distance of the second gap 15 is set to 0.4-0.8 mm. In this way, in the process that the ox horn gate body 1 is ejected, because the front portion of the ox horn gate body 1 bends to generate an elastic force, if the distance of the second gap 15 is less than 0.4mm, the back action of the elastic force may not be borne because the thickness is too small, and then the ox horn gate body 1 is broken at the position corresponding to the second gap 15 and ejected, the manipulator cannot clamp the ox horn gate body 1 correctly, but if the distance of the second gap 15 is more than 0.8mm, the phenomenon that the thickness of the ox horn gate body 1 at the position corresponding to the second gap 15 is too large, the ox horn gate body 1 is excessively and firmly sleeved on the second ejector pin 10, and the manipulator cannot clamp the ox horn gate body 1 from the second ejector pin 10 easily occurs. A further preferable technical solution is that the longitudinal section of the upper portion of the second thimble 10 is an isosceles trapezoid. Like this, the upper portion of second thimble 10 does second clearance 15 provides dodges the space, makes ox horn runner body 1 with the diameter of the contact department of second thimble 10 from top to bottom grow gradually, makes things convenient for the manipulator to get when pressing from both sides ox horn runner body 1 will ox horn runner body 1 is followed the top of second thimble 10 is taken out.

The utility model discloses a novel injection mold ox horn runner mechanism please refer to in 2 to 10 relevant each pictures of drawing, can also be on the basis of preceding technical scheme: the horn insert 2 is integrally fixed with a first protrusion 16 at a position corresponding to the bottom of the rear end of the first flow channel 5. Thus, a notch is formed at a position corresponding to the first protrusion 16 of the injection molded ox horn gate body 1, when the first thimble 9 ejects the ox horn gate body 1 upwards, because the first flow channel 5 is arranged in the ox horn insert 2 in a submerged manner, when the front part of the ox horn gate body 1 is pulled away from the first flow channel 5, the front part of the ox horn gate body 1 is bent, in order to prevent the ox horn gate body 1 from being broken in the ejection process due to the interference phenomenon at the bent position of the ox horn gate body 1 in the bending process, and further, the first protrusion 16 is arranged at the bottom of the rear end of the first flow channel 5, so that the notch is formed at the position corresponding to the first protrusion 16 of the ox horn gate body 1, when the ox horn gate body 1 is ejected, the front part and the rear part of the notch can avoid the space retracted when the ox horn sprue body 1 is bent. In a further preferred technical scheme, a second protrusion 17 is integrally fixed on the horn insert 2 at a position corresponding to the bottom of the front end of the second flow channel 6. Thus, the bottom of the front end of the second flow channel 6 is provided with the second protrusion 17, so that the ox horn gate body 1 also forms a gap at the second protrusion 17, and when the ox horn gate body 1 is jacked up by the first thimble 9, the bottom of the ox horn gate body is uniformly distributed at the corresponding positions of the first protrusion 16 and the second protrusion 17 due to the bending and retracting distance, and the risk that the ox horn gate body 1 is broken off in the jacking process is further reduced. In a further preferred embodiment, the first protrusion 16 and the second protrusion 17 are assembled to form a protrusion body having an arc-shaped longitudinal section. Like this, ox horn runner body 1 is in first arch 16 with the great circular-arc breach of longitudinal section is formed to the corresponding position department of second arch 17, makes the produced bending stress of bending of the in-process that ox horn runner body 1 is pushed out can evenly distributed on this circular-arc breach, and then has reduced certain department of ox horn runner is because of the too big cracked risk of bending stress. The protrusion body with the arc-shaped longitudinal section can be independently arranged at the bottom of the rear end of the first flow channel 5 or the bottom of the front end of the second flow channel 6, as long as a notch with the arc-shaped longitudinal section is formed at the bent part of the bottom of the ox horn gate body 1.

The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.

Claims

1. The utility model provides a novel injection mold ox horn runner mechanism which characterized in that: the injection molding machine comprises a horn insert, a horn glue inlet and an outer mold, wherein the horn insert is detachably fixed on the front side of the outer mold, a first flow channel for flowing of injection molding fluid is arranged at the top of the horn insert, the horn glue inlet is arranged on the front side of the first flow channel, the first flow channel is communicated with a product cavity through the horn glue inlet, a second flow channel for flowing of injection molding fluid is arranged at the top of the rear side of the outer mold, the rear part of the second flow channel is communicated with a glue injection channel, the rear part of the first flow channel and the front part of the second flow channel are communicated with the injection molding fluid to form a horn sprue body through injection molding, a first channel for reciprocating movement of a first thimble is longitudinally arranged below the second flow channel, the upper part of the first thimble is detachably fixed with the bottom of the horn sprue body, and the top of the first channel is communicated with the second flow channel, the front part of the first flow passage is arranged inside the ox horn insert in a submerged mode.

2. The novel injection mold oxhorn gate mechanism of claim 1, wherein: the cross section of the oxhorn glue inlet is in a shape of a long strip and an ellipse.

3. The novel injection mold oxhorn gate mechanism of claim 1, wherein: a first gap is formed between the upper portion of the first ejector pin and the first channel, and the lower portion of the first ejector pin is in releasable sliding connection with the first channel.

4. The novel injection mold oxhorn gate mechanism of claim 3, wherein: the distance of the first gap is set to be 0.4-0.8 mm.

5. The novel injection mold oxhorn gate mechanism of claim 1, wherein: the second channel is arranged behind the first channel and used for a second thimble to reciprocate, the second thimble is detachably fixed with the bottom of the ox horn sprue body, and the second channel is communicated with the second channel.

6. The novel injection mold oxhorn gate mechanism of claim 5, wherein: and a second gap is formed between the upper part of the second thimble and the second channel, and the lower part of the second thimble is in releasable sliding connection with the second channel.

7. The novel injection mold oxhorn gate mechanism of claim 6, wherein: the distance of the second gap is set to be 0.4-0.8 mm.

8. A novel injection mould horn gate mechanism as claimed in any one of claims 1 to 7, wherein: the horn insert is integrally fixed with a first bulge at a position corresponding to the bottom of the rear end of the first flow channel.

9. The novel injection mold oxhorn gate mechanism of claim 8, wherein: and a second bulge is integrally fixed at the position of the ox horn insert corresponding to the bottom of the front end of the second flow passage.

10. The novel injection mold oxhorn gate mechanism of claim 9, wherein: the first protrusion and the second protrusion are spliced to form a protrusion body with a circular arc-shaped longitudinal section.