CN212472257U

CN212472257U - Insert and hot runner system are adjusted to hot runner flow and stream length

Info

Publication number: CN212472257U
Application number: CN202020473797.8U
Authority: CN
Inventors: 吴春明
Original assignee: Shaoxing Sdl Hot Runner Co ltd
Current assignee: Shaoxing Sdl Hot Runner Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-02-05
Anticipated expiration: 2030-04-02

Abstract

The application discloses insert and hot runner system are adjusted to hot runner flow and length of flow, hot runner flow and length of flow adjust the insert and include cylindrical base member, the material hole has been seted up respectively to the both ends of base member, the spiral helicine slide has been seted up on the lateral wall of base member, slide UNICOM the material hole. This mold insert is installed in a runner section of thick bamboo that length is shorter relatively back, because be provided with spiral helicine slide on the base member, will originally in the runner section of thick bamboo linear flow path become spiral helicine curve flow path, just so increased the length of flowing through of plastic raw materials in a short runner section of thick bamboo, just so shortened two strands of plastic raw materials and in two runner section of thick bamboos of length the length of flowing through poor, more even during the ejection of compact, shortened the difference between hot runner point and the point, more be close the balance.

Description

Insert and hot runner system are adjusted to hot runner flow and stream length

Technical Field

The utility model relates to an injection mold field especially relates to a mold insert and hot runner system are adjusted to hot runner flow and stream length.

Background

At present, a hot runner device is needed to be used in injection molding production of a plurality of plastic parts, as shown in fig. 1, the lengths of two runner cylinders (2) of the hot runner device are different, so that plastic raw materials enter from a runner nozzle (1), then flow into the two runner cylinders (2), and then flow out from a discharge nozzle (3) on the runner cylinders (2), the lengths of the two runner cylinders are different, the distance from the runner nozzle to a product parting surface of the plastic raw materials is greatly different, the path length between the two discharge nozzles is greatly different, the feeding material with a short path is injected well quickly, the feeding material with a long path is difficult to be injected fully, and the mutual balance between the path length and the hot runner point is difficult to keep consistent. In order to keep the balance between the hot runner point and the point, the length difference of the two runner cylinders is smaller under the condition of ensuring that the length difference of the two runner cylinders is not changed, and the balance is closer to the smaller difference between the hot runner point and the point.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above-mentioned problem, provide a mold insert and hot runner system are adjusted to hot runner flow and stream length.

The utility model adopts the following technical scheme:

the utility model provides a hot runner flow and class length adjustment mold insert, includes cylindrical base member, the material hole has been seted up respectively to the both ends of base member, set up spiral helicine slide on the lateral wall of base member, slide UNICOM the material hole.

This mold insert is installed in a runner section of thick bamboo that length is shorter relatively back, because be provided with spiral helicine slide on the base member, will originally in the runner section of thick bamboo linear flow path become spiral helicine curve flow path, just so increased the length of flowing through of plastic raw materials in a short runner section of thick bamboo, just so shortened two strands of plastic raw materials and in two runner section of thick bamboos of length the length of flowing through poor, more even during the ejection of compact, shortened the difference between hot runner point and the point, more be close the balance.

Optionally, a trough is respectively arranged at two ends of the base body, and the material holes are arranged in the trough.

The effect that sets up the silo is for playing the buffering transition effect to the plastic raw materials on the inflow base member, and it is more stable when guaranteeing that the plastic raw materials slides on spiral helicine slide, and the effect that sets up the silo simultaneously at the both ends of base member is in order to guarantee that when the plastic raw materials will flow soon, can not remain the plastic raw materials on the spiral helicine slide.

Optionally, the trough is a circular counter bore-shaped trough.

Optionally, the substrate is a cylindrical substrate.

A hot runner system comprises a hot runner flow and flow length adjusting insert.

The utility model has the advantages that: this mold insert is installed in a runner section of thick bamboo that length is shorter relatively back, because be provided with spiral helicine slide on the base member, will originally in the runner section of thick bamboo linear flow path become spiral helicine curve flow path, just so increased the length of flowing through of plastic raw materials in a short runner section of thick bamboo, just so shortened two strands of plastic raw materials and in two runner section of thick bamboos of length the length of flowing through poor, more even during the ejection of compact, shortened the difference between hot runner point and the point, more be close the balance.

Description of the drawings:

FIG. 1 is a schematic block diagram of a hot runner apparatus.

FIG. 2 is a schematic diagram of a hot runner flow and length adjusting insert structure.

FIG. 3 is a schematic block diagram of a hot runner system.

The figures are numbered: 1. the device comprises a feeding nozzle, 2, a runner cylinder, 3, a discharging nozzle, 4, a base body, 401, a slideway, 402, a trough, 403, a material hole, 5, a sealing plug, 6, a runner plate, 7 and a protective sleeve.

The specific implementation mode is as follows:

the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 2, the insert for adjusting the flow rate and the flow length of the hot runner comprises a columnar base 4, wherein material holes 402 are respectively formed in two ends of the base 4, a spiral slideway 401 is formed in the outer side wall of the base 4, and the slideway 401 is communicated with the material holes 402.

This mold insert is installed in the relative short runner section of thick bamboo of length back, because be provided with spiral helicine slide 401 on base member 4, will originally in the runner section of thick bamboo linear flow path become spiral helicine curve flow path, just so increased the length of flowing through of plastic raw materials in a short runner section of thick bamboo, just so shortened two strands of plastic raw materials and in two runner section of thick bamboos of length the length of flowing through poor, more even during the ejection of compact, shortened the difference between hot runner point and the point, more be close to the balance.

As shown in fig. 2, the base 4 is provided with a groove 403 at each end, and a material hole 402 is provided in the groove 403.

The material groove 403 is arranged to buffer the plastic material flowing into the base 4, so as to ensure that the plastic material is more stable when sliding on the spiral slideway 401, and the material grooves 403 are arranged at two ends of the base 4 so as to ensure that the plastic material is not left on the spiral slideway 401 when the plastic material is about to flow.

As shown in fig. 2, the trough 403 is a circular counter-bored trough 403.

As shown in fig. 2, the substrate 4 is a cylindrical substrate 4.

Referring to fig. 3, a method for using the hot runner flow and flow length adjusting insert shown in fig. 2 is further described, first, two long and short runner cylinders 2 are installed on the runner plate 6, and the hot runner flow and flow length adjusting insert shown in fig. 2 is installed in the runner cylinder 2 with the shorter length, so that on the premise of ensuring the length difference of the two runner cylinders 2, the length difference of two plastic materials flowing through the two runner cylinders 2 is greatly reduced, and if the hot runner flow and flow length adjusting insert is processed after accurate calculation, the lengths of the two plastic materials flowing through the two runner cylinders 2 can be ensured to be equal.

Meanwhile, a plurality of hot runner flow and flow length adjusting inserts can be placed in the integrated flow passage barrel 2 as required, and because the delay of each hot runner flow and flow length adjusting insert on the plastic raw material is determined and can be tested through tests, the discharging speed difference of the two discharging nozzles 3 can be adjusted as required. The extension time S of a hot runner flow and flow length adjusting insert is measured₁And the time difference S of the long and short flow passage cylinders 2₂After measurement, the sample can be placed in a short flow passage cylinder (S)₂/S₁) Flow and flow length of hot runnerThe time of the plastic raw materials flowing out of the two runner pipes 2 can be basically equal.

The utility model provides a hot runner system, as shown in figure 3, includes that feed nozzle 1, runner plate 6 and two runner section of thick bamboos 2 that differ in size install ejection of compact mouth 3 on the runner section of thick bamboo 2, and a feed nozzle 1 and 2 runner section of thick bamboos 2 are all installed on runner plate 6, install in the runner section of thick bamboo 2 that length is short like the hot runner flow and the length of flow regulation mold insert that figure 2 shows, install protective sheath 7 on the outer wall of every runner section of thick bamboo 2. The hole formed in the flow channel plate 6 for opening is sealed with a sealing plug 5.

The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The insert is characterized by comprising a columnar base body, wherein material holes are formed in two ends of the base body respectively, a spiral slide way is formed in the outer side wall of the base body, and the slide way is communicated with the material holes.

2. The hot runner flow and length adjusting insert according to claim 1, wherein the base body has troughs disposed at each end thereof, the orifices being disposed in the troughs.

3. The hot runner flow and length adjusting insert according to claim 2, wherein the channel is a circular counter-bored channel.

4. The hot runner flow and length adjusting insert according to claim 1, wherein the base is a cylindrical base.

5. A hot-runner system comprising the hot-runner flow and length adjusting insert of any one of claims 1-4.