CN218535469U

CN218535469U - Glue injection structure and injection mold

Info

Publication number: CN218535469U
Application number: CN202222648916.0U
Authority: CN
Inventors: 王军; 姚君乐; 冯武平
Original assignee: Huizhou Wai Chi Electronics Co ltd
Current assignee: Huizhou Wai Chi Electronics Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-28
Anticipated expiration: 2032-09-30

Abstract

A glue injection structure is characterized by comprising: the plastic injection molding machine comprises a main rubber pipe, a plurality of shunt pipes, a plurality of flow guide pipes, a plurality of heating pipes and a plurality of injection molding flow passages, wherein the main rubber pipe is communicated with the shunt pipes, a plastic melt is injected from the main rubber pipe and flows into the shunt pipes, a heating cavity is uniformly arranged in each heating pipe, a heating element is arranged in the heating cavity, at least part of each shunt pipe is inserted into the heating cavity, so that the plastic in the shunt pipes can be kept in a molten state at any time, a plurality of flow guide pipes are further arranged at the tail ends of the shunt pipes, the first ends of the flow guide pipes are communicated with the shunt pipes, the second ends of the flow guide pipes are communicated with the injection molding flow passages, the plastic can uniformly flow into the injection molding flow passages, after the plastic melt is injected into the injection molding flow passages through the flow guide pipes, the injection molding operation is completed, the plastic melt can be conveniently guided into cavities of injection molds through the subsequent injection molding flow passages, and can be cooled and molded, and accordingly the injection molding operation can be achieved.

Description

Glue injection structure and injection mold

Technical Field

The utility model relates to a technical field, in particular to injecting glue structure and injection mold moulds plastics.

Background

The mold used for plastic injection molding is called an injection mold; the injection mold can be used for molding plastic products with complex appearance, high dimensional accuracy or inserts in one step, and generally comprises a glue injection structure, wherein the glue injection structure is used for introducing injection molding materials into a cavity of the injection mold, so that injection molding is realized, and the injection mold is an important part of the injection mold.

In the prior production, the plastic melt is easy to have the problem of poor fluidity, and the temperature of the plastic melt cannot be well controlled, so that the quality of a molded plastic product is not high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the existing pouring problem, a glue injection structure and an injection mold are provided.

A glue injection structure comprising: the utility model discloses a heating chamber, each heating chamber, each heating chamber's lateral wall are provided with a heating member, each the reposition of redundant personnel part set up in one in the heating chamber, each the first end of shunt personnel respectively with main rubber tube intercommunication, each the honeycomb duct sets up in one in the heating chamber, each the first end of honeycomb duct respectively with each the second end one-to-one intercommunication of shunt tubes, each the cross-sectional area of honeycomb duct is crescent by first end to second end, each the injecting glue runner with one the honeycomb duct is adjacent to each other sets up, each the injecting glue runner with one the second end intercommunication of honeycomb duct.

In one embodiment, the heating pipe further comprises a pouring plate, a feed port is formed in a first surface of the pouring plate, a containing cavity is formed in the middle of the pouring plate, the main rubber pipe is arranged in the containing cavity and communicated with the feed port, the branch pipes are partially arranged in the containing cavity, and the heating pipes are respectively connected with a second surface of the pouring plate.

In one embodiment, the casting device further comprises a top plate, wherein the first surface of the top plate is connected with the first surface of the casting plate, and the top plate is provided with a communication hole which is communicated with the feed inlet.

In one embodiment, the positioning device further comprises a positioning ring, the positioning ring is arranged on the second surface of the top plate, the positioning ring is provided with a positioning hole, and the positioning hole is communicated with the communication hole.

In one embodiment, the heating pipe further comprises a front template, a containing groove is formed in a first surface of the front template, the pouring plate is arranged in the containing groove, a plurality of through holes are formed in the bottom of the containing groove, the through holes respectively penetrate through a second surface of the front template, and each heating pipe is arranged in one through hole.

In one embodiment, the bottom of the accommodating groove is provided with a plurality of positioning grooves, the positioning grooves are arranged at intervals, the second surface of the casting plate is provided with a plurality of positioning blocks, the positioning blocks are arranged at intervals, and the positioning blocks are respectively arranged in the positioning grooves in a one-to-one correspondence manner.

In one embodiment, the heating member is a heating wire.

In one embodiment, the front template further comprises a positioning screw, the top plate is provided with a first positioning screw hole, the front template is provided with a second positioning screw hole, the first positioning screw hole and the second positioning screw hole are communicated with each other, and the positioning screw is in threaded connection with the inner side wall of the first positioning screw hole and the inner side wall of the second positioning screw hole in sequence.

In one embodiment, the heating pipe further comprises a heat insulation sleeve, and the heat insulation sleeve is sleeved on the outer side wall of the heating pipe.

An injection mold comprising: the glue injection structure in any of the above embodiments.

The utility model has the advantages that: a injecting glue structure and injection mold, the injecting glue structure includes main rubber tube, a plurality of shunt tubes, a plurality of honeycomb ducts, a plurality of heating pipe and a plurality of injecting glue runner, main rubber tube is used for conveying plastics with each shunt tube, it is inside all to be hollow structure, the second end of main rubber tube and the first end intercommunication of each shunt tube, the inside homogeneous of each heating pipe is provided with a heating chamber, the inside wall in heating chamber is equipped with heating member, be used for heating plastics, the at least part cover of each shunt tube is located in the heating intracavity, make the plastics in the shunt tube keep the molten state at any time, mobility is good, each component misce bene in the plastics fuse-element, be favorable to follow-up preparation to obtain the plastic products that finished product quality is high, second end at each shunt tube still is equipped with a plurality of honeycomb ducts, the first end and the shunt tube of honeycomb duct communicate mutually, the second end of honeycomb duct and the second end intercommunication of heating pipe, the cross-sectional area is crescent by the one end to the other end near the shunt tube, its effect is in letting plastics can be even each injecting glue runner of inflow.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is an exploded schematic view of a glue injection structure according to an embodiment;

fig. 2 is a partial schematic structural view of a glue injection structure according to an embodiment;

fig. 3 is a schematic cross-sectional view of a partial structure of the glue injection structure according to an embodiment.

In the attached drawings, 10 is a glue injection structure; 100. pouring a plate; 110. an accommodating chamber; 111. a feed inlet; 120. a main rubber pipe; 130. a shunt tube; 140. heating a tube; 150. a flow guide pipe; 160. positioning a block; 170. a heat insulating sleeve; 200. a top plate; 210. a positioning ring; 220. a first positioning screw hole; 300. a front template; 310. a through hole; 320. a second positioning screw hole; 330. positioning a groove; 340. accommodating a tank; 400. and (7) a glue injection flow channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, in an embodiment, a glue injection structure 10 and an injection mold include: the rubber tube heating device comprises a main rubber tube 120, a plurality of shunt tubes 130, a plurality of flow guide tubes 150, a plurality of heating tubes 140 and a plurality of rubber injection flow passages 400, wherein each heating tube 140 is provided with a heating cavity, a heating element is arranged on the side wall of the heating cavity, each shunt tube 130 is partially arranged in one heating cavity, the first ends of the shunt tubes 130 are respectively communicated with the main rubber tube 120, each flow guide tube 150 is arranged in one heating tube 140, the first ends of the flow guide tubes 150 are respectively communicated with the second ends of the shunt tubes 130 in a one-to-one correspondence manner, the cross sectional area of each flow guide tube 150 is gradually increased from the first ends to the second ends, each rubber injection flow passage 400 is adjacent to one flow guide tube 150, and each rubber injection flow passage 400 is communicated with the second ends of the flow guide tubes 150.

It should be noted that, in this embodiment, the present invention provides an injection structure 10 and an injection mold, the main rubber tube 120 and each shunt tube 130 are used for conveying plastic melt, the interior thereof is hollow structure, the second end of the main rubber tube 120 is communicated with the first end of each shunt tube 130, the structure is from top to bottom, by using gravity, the plastic melt is injected from the first end of the main rubber tube 120 and flows into each shunt tube 130, and is injected from the second end of the shunt tube 130, a heating cavity is uniformly arranged inside each heating tube 140, the inner side wall of the heating cavity is provided with a heating element for heating the plastic melt, the flowability of the plastic melt is kept good, the mixing of the components of the plastic melt is more uniform, thereby facilitating the subsequent preparation to obtain a plastic product with better quality, specifically, at least part of each shunt tube 130 is inserted into the heating cavity, so that the plastic in the shunt tube 130 can be kept in a molten state at any time, the fluidity is good, the components in the plastic melt are uniformly mixed, the second end of each shunt tube 130 is further provided with a plurality of guide tubes 150, the first end of each guide tube 150 is communicated with the shunt tube 130, the second end of each guide tube 150 is communicated with the glue injection runner 400, the cross-sectional area of each guide tube 150 is gradually increased from one end close to the shunt tube 130 to the other end, and the cross-sectional area of each guide tube 150 has the function of enabling the plastic to uniformly flow into the glue injection runner 400, in the embodiment, the guide tubes 150 and the glue injection runner 400 are arranged at intervals up and down, the guide tube 150 is driven by an external driving device to be close to or far away from the glue injection runner 400, so that after the plastic melt is injected into the glue injection runner 400 through the guide tubes 150, the guide tube 150 is driven by the external driving device to be far away from the glue injection runner 400, the glue injection operation is completed, and the subsequent glue injection runner 400 can conveniently guide the plastic melt into a cavity of an injection mold and perform cooling molding operation, thereby realizing the injection molding operation.

In order to fix the glue channel, in an embodiment, as shown in fig. 2 and fig. 3, the glue channel further includes a pouring plate 100, a feeding hole 111 is formed in a first surface of the pouring plate 100, a containing cavity 110 is formed in a middle portion of the pouring plate 100, the main rubber pipe 120 is disposed in the containing cavity 110 and is communicated with the feeding hole 111, a portion of each shunt pipe 130 is disposed in the containing cavity 110, and each heating pipe 140 is connected to a second surface of the pouring plate 100. In this embodiment, pouring plate 100 is including the board body and bottom plate, the connection can be dismantled to board body and bottom plate, the board body has been seted up and has been held chamber 110, the bottom plate is used for the activity to seal and holds chamber 110, heating pipe 140 installs on the bottom plate, a plurality of movable holes have been seted up to the bottom plate, each movable hole and heating pipe 140's position looks adaptation, each movable hole respectively with hold chamber 110 intercommunication, each shunt tubes 130 wears out and sets up in the heating intracavity of heating pipe 140 through each movable hole respectively, it has holding tank 340 to open at the middle part of pouring plate 100, the bottom of pouring plate 100 is detachable, main rubber tube 120 sets up in this holding tank 340 with each shunt tubes 130, fixing through holding tank 340, the middle part that can pour plate 100 has been seted up and has been held chamber 110, main rubber tube 120 sets up in holding chamber 110 with each shunt tubes 130's at least part, can effectively prevent to mould plastics the in-process displacement, play the effect of fixed rubber way.

In order to facilitate the fastening of the mold, in one embodiment, as shown in fig. 1, the mold further includes a top plate 200, a first surface of the top plate 200 is movably abutted against a first surface of the casting plate 100, and the top plate 200 is provided with a communication hole, and the communication hole is communicated with the feed opening 111. In this embodiment, the second surface of the top plate 200 is provided with a communication hole, the communication hole is communicated with the feed inlet 111 of the pouring plate 100, the aperture of the communication hole is equal to the aperture of the feed inlet 111, the top plate 200 and the pouring plate 100 can be detachably connected with each other, meanwhile, the plastic can be effectively prevented from leaking in the injection process, and the top plate 200 can also play a certain role in protecting the pouring plate 100.

In order to reduce the damage of the injection molding machine, in one embodiment, as shown in fig. 1, a positioning ring 210 is further included, the positioning ring 210 is disposed on the second surface of the top plate 200, and the positioning ring 210 has a positioning hole which is communicated with the communication hole. In this embodiment, the positioning ring 210 is disposed on the first surface of the top plate 200 and is communicated with the communication hole and the feeding hole 111, the positioning ring 210 is used to align the mold quickly, the mold adjusting time can be shortened greatly, the damage of the nozzle of the injection molding machine can be reduced by accurate docking, and besides being used to position the communication hole, the positioning ring 210 can also be used as a fastening member to fix the fitting.

In order to protect the glue injection structure 10, in an embodiment, as shown in fig. 1, the glue injection structure further includes a front mold plate 300, a receiving groove 340 is formed on a first surface of the front mold plate 300, the casting plate 100 is disposed in the receiving groove 340, a plurality of through holes 310 are formed at a bottom of the receiving groove 340, each of the through holes 310 is disposed to penetrate through a second surface of the front mold plate 300, and each of the heating pipes 140 is disposed in one of the through holes 310. In this embodiment, first face at the front bezel mould is opened there is a holding tank 340, the size and the shape of holding tank 340 and the size and the shape looks adaptation of casting plate 100, casting plate 100 sets up in holding tank 340, protection through holding tank 340, can prevent effectively that casting plate 100 from receiving the collision and leading to the damage, a plurality of through-holes 310 have still been seted up in the bottom of holding tank 340, be used for protecting the heat pipe, the shape of through-hole 310 and the shape looks adaptation of heating pipe 140, each heating pipe 140 wears to locate in each through-hole 310, through the protection of through-hole 310 to the lateral wall of heat pipe, effectively prevent that heating pipe 140 from colliding with badly, can also play the effect that reduces calorific loss simultaneously.

In order to facilitate the connection between the casting plate 100 and the front mold plate 300, in an embodiment, as shown in fig. 1, a plurality of positioning grooves 330 are formed at the bottom of the accommodating groove 340, the positioning grooves 330 are spaced apart from each other, a plurality of positioning blocks 160 are disposed on the second surface of the casting plate 100, the positioning blocks 160 are spaced apart from each other, and the positioning blocks 160 are disposed in the positioning grooves 330 in a one-to-one correspondence manner. In this embodiment, a plurality of locating pieces 160 have been seted up to the second face of pouring plate 100, have also seted up a plurality of constant head tanks 330 in the bottom of holding tank 340, through the one-to-one block between each locating piece 160 and a constant head tank 330, can fix a position the installation to pouring plate 100 and preceding template 300, and can effectively prevent to mould plastics the in-process and take place the displacement for pouring plate 100 is more firm with being connected of preceding template 300, guarantees the normal clear of the operation of moulding plastics.

In order to increase the lifetime, in one embodiment, the heating element is a heating wire. In the embodiment, the heating wire is made of iron-chromium-aluminum electrothermal alloy, has higher resistance, high surface load and good oxidation resistance, cannot be decomposed or oxidized in the air within the use temperature range, and has high heating efficiency and good heating effect.

In order to facilitate the installation of the top plate 200 and the front mold plate 300, in an embodiment, as shown in fig. 1, a positioning screw is further included, the top plate 200 is provided with a first positioning screw hole 220, the front mold plate 300 is provided with a second positioning screw hole 320, the first positioning screw hole 220 and the second positioning screw hole 320 are communicated with each other, and the positioning screw is in threaded connection with an inner side wall of the first positioning screw hole 220 and an inner side wall of the second positioning screw hole 320 in sequence. In this embodiment, the top plate 200 and the front mold plate 300 are both provided with positioning screw holes, the positioning screw holes have the same diameter, the positioning screw holes are communicated with each other, and the positioning screw rods are screwed with the inner side walls of the positioning screw holes, so that the top plate 200 and the front mold plate 300 are more tightly fixed, the top plate 200 and the front mold plate 300 are effectively prevented from shifting in the injection molding process, and the generation of inferior products is reduced.

In order to reduce heat loss, in one embodiment, as shown in fig. 2, a heat insulation sleeve 170 is further included, and the heat insulation sleeve 170 is sleeved on the outer side wall of the heating tube 140. In this embodiment, the material of the heat insulating sleeve 170 is synthesized by glass fiber materials and high heat-resistant composite materials, has better heat resistance, and can effectively reduce heat loss and energy consumption under the action of the heat insulating sleeve 170, and simultaneously, the heat inside is isolated, so that scalding is prevented.

In one embodiment, there is also provided an injection mold comprising: the glue injection structure 10 described in any of the above embodiments.

It should be noted that the injection mold further comprises a lower mold plate, each glue injection runner 400 is installed on the lower mold plate, the lower mold plate is provided with a cavity, each glue injection runner 400 is respectively communicated with the cavity, so that a molten plastic melt is conveniently introduced into the cavity, the shape of the cavity can be set according to the shape of a plastic product, and the plastic melt is cooled and molded after being injected into the cavity, so that a plastic finished product is prepared.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A glue injection structure is characterized by comprising: the utility model discloses a heating chamber, each heating chamber, each heating chamber's lateral wall are provided with a heating member, each the reposition of redundant personnel part set up in one in the heating chamber, each the first end of shunt personnel respectively with main rubber tube intercommunication, each the honeycomb duct sets up in one in the heating chamber, each the first end of honeycomb duct respectively with each the second end one-to-one intercommunication of shunt tubes, each the cross-sectional area of honeycomb duct is crescent by first end to second end, each the injecting glue runner with one the honeycomb duct is adjacent to each other sets up, each the injecting glue runner with one the second end intercommunication of honeycomb duct.

2. The glue injection structure of claim 1, further comprising a casting plate, wherein a feed inlet is formed in a first surface of the casting plate, a containing cavity is formed in the middle of the casting plate, the main rubber tube is arranged in the containing cavity and communicated with the feed inlet, the branch pipes are partially arranged in the containing cavity, and the heating pipes are respectively connected with a second surface of the casting plate.

3. The glue injection structure of claim 2, further comprising a top plate, wherein the first surface of the top plate is connected with the first surface of the pouring plate, the top plate is provided with a communication hole, and the communication hole is communicated with the feed inlet.

4. The glue injection structure according to claim 3, further comprising a positioning ring, wherein the positioning ring is disposed on the second surface of the top plate, and the positioning ring has a positioning hole, and the positioning hole is communicated with the communication hole.

5. The glue injection structure according to claim 3, further comprising a front mold plate, wherein a containing groove is formed in a first surface of the front mold plate, the casting plate is disposed in the containing groove, a plurality of through holes are formed in the bottom of the containing groove, the through holes respectively penetrate through a second surface of the front mold plate, and each heating pipe is disposed in one of the through holes.

6. The glue injection structure according to claim 5, wherein a plurality of positioning grooves are formed in the bottom of the accommodating groove, the positioning grooves are arranged at intervals, a plurality of positioning blocks are arranged on the second surface of the casting plate, the positioning blocks are arranged at intervals, and the positioning blocks are respectively arranged in the positioning grooves in a one-to-one correspondence manner.

7. A glue injection structure according to claim 1, characterised in that the heating element is a heating wire.

8. The glue injection structure of claim 5, further comprising a positioning screw, wherein the top plate is provided with a first positioning screw hole, the front template is provided with a second positioning screw hole, the first positioning screw hole and the second positioning screw hole are communicated with each other, and the positioning screw is in threaded connection with the inner side wall of the first positioning screw hole and the inner side wall of the second positioning screw hole in sequence.

9. The compound injection structure of claim 1, further comprising a heat insulation sleeve, wherein the heat insulation sleeve is sleeved on an outer side wall of the heating pipe.

10. An injection mold comprising the compound injection structure as claimed in any one of claims 1 to 9.