CN219114746U

CN219114746U - Pyrocondensation pipe forming die and extruder

Info

Publication number: CN219114746U
Application number: CN202223605628.3U
Authority: CN
Inventors: 吴镝
Original assignee: Shenzhen Baidi Technology Co ltd
Current assignee: Shenzhen Baidi Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-02
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a heat shrinkage tube forming die and an extruder, which comprise a die main body, a forming rod and an extrusion assembly, wherein a first accommodating space is arranged in the die main body, the forming rod is detachably arranged in the first accommodating space and forms a forming space together with the die main body, the extrusion assembly is arranged at the inlet of the first accommodating space and is connected with the forming rod and is used for extruding a melt into the forming space to form in the forming space, the forming rod and the melt can keep stability and are not easy to generate dislocation and the like in the extrusion process, and the accuracy in operation is higher, so that the production quality and the production efficiency are improved.

Description

Pyrocondensation pipe forming die and extruder

Technical Field

The utility model relates to the technical field of heat-shrinkable tube processes, in particular to a heat-shrinkable tube forming die and an extruder.

Background

The heat shrinkage pipe is used as a special polyolefin heat shrinkage sleeve, has the functions of high-temperature shrinkage, softness, flame retardance, insulation, corrosion resistance and the like, is widely applied to automobile manufacturing, intelligent machinery and other various manufacturing industries, is easy to separate the heat shrinkage pipe from a die after being extruded out of the heat shrinkage pipe molding in the prior art, causes dislocation and the like of the heat shrinkage pipe, has lower production efficiency and production quality in operation, and also causes loss and waste of raw materials.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an object of the present utility model is to propose a heat shrink tube forming die comprising:

the die comprises a die main body, wherein a first accommodating space is arranged in the die main body;

the forming rod is detachably arranged in the first accommodating space and forms a forming space together with the die main body;

and the extrusion assembly is arranged at the inlet of the first accommodating space and connected with the forming rod, and is used for injecting the melt into the forming space so as to form in the forming space.

Preferably, the die body includes an upper die and a lower die, the upper die is movably disposed on the lower die, and each die body has a groove, and when the upper die moves onto the lower die, the two grooves jointly enclose to form the first accommodating space.

Preferably, the device further comprises a driving cylinder, wherein the driving cylinder is arranged on the lower die and connected to the upper die and used for driving the upper die and the lower die to be close to or far away from each other.

Preferably, the lower die is provided with a limiting column, the upper die is provided with a limiting hole, and when the driving cylinder drives the upper die and the lower die to approach each other, the limiting column enters the limiting hole and stops and limits the upper die and the lower die.

Preferably, the extrusion assembly comprises:

the connecting pipe is sleeved on the forming rod;

and the connecting pipelines are arranged on the connecting pipes and are communicated with each other, and the melt enters the connecting pipes through the connecting pipelines.

Preferably, the connecting pipe is provided with a fixing snap ring and is close to the die main body, an embedded groove can be formed when the upper die and the lower die are mutually attached, and the fixing snap ring is used for being embedded in the embedded groove so as to seal the first accommodating space.

Preferably, the connecting pipe and the forming rod form a second accommodating space together, and when the forming rod enters the second accommodating space, the first accommodating space and the second accommodating space are mutually communicated.

Preferably, the apparatus further comprises a heating member surrounding the outer circumferential surface of the connection pipe for heating the melt.

Another object of the present utility model is to propose an extruder comprising a heat shrink tube injection moulding die as described above.

The scheme of the utility model at least comprises the following beneficial effects:

according to the heat shrinkage pipe forming die provided by the embodiment of the utility model, the extrusion assembly is fixedly arranged on the die main body, the forming rod enters the first accommodating space in the die main body along with the extrusion assembly, the melt is output into the extrusion assembly for forming, the formed melt can be extruded into the first accommodating space from the extrusion assembly along the forming rod until the formed melt is extruded to the outlet of the first accommodating space, the stability of the forming rod and the melt can be kept, dislocation and the like are not easy to occur in the extrusion process, and the working accuracy is high, so that the production quality and the production efficiency are improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a heat shrinkable tube forming die provided in an embodiment of the present utility model;

FIG. 2 is an exploded view of a heat shrinkable tube forming die provided in an embodiment of the present utility model;

FIG. 3 is an exploded view of the structure of an extrusion assembly provided in an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a heat shrinkable tube forming die provided in an embodiment of the present utility model;

fig. 5 is an enlarged view of fig. 4.

Reference numerals illustrate:

1. a mold body; 10. a first accommodation space; 11. a lower die; 110. a limit column; 12. an upper die; 120. a limiting hole; 13. a groove; 14. an embedding groove; 2. forming a rod; 3. an extrusion assembly; 30. a connecting pipe; 31. a connecting pipe; 32. a fixed snap ring; 33. a second accommodation space; 34. a heating member; 4. the cylinder is driven.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present utility model and should not be construed as limiting the utility model, and all other embodiments, based on the embodiments of the present utility model, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The heat shrinkage tube forming die and the extruder according to the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the heat shrinkable tube molding die provided by the embodiment of the utility model comprises a die main body 1, a molding rod 2 and an extrusion assembly 3, wherein a first accommodating space 10 is arranged in the die main body 1, the molding rod 2 is detachably arranged in the first accommodating space 10 and forms a molding space together with the die main body 1, and the extrusion assembly 3 is arranged at the inlet of the first accommodating space 10 and is connected with the molding rod 2 for injecting a melt into the molding space to be molded in the molding space.

In this embodiment, the extrusion assembly 3 is detachably connected to the die body 1, and may extend in a horizontal direction of the die body 1, and the forming rod 2 may be disposed in a horizontal direction of the die body 1 and the extrusion assembly 3, and the melt may be plastic particles.

It will be appreciated that when the extrusion assembly 3 is fixed to the die body 1 and the forming rod 2 is inserted into the first accommodating space 10, the melt is injected into the extrusion assembly 3, and the melt is formed into the heat shrink tube on the forming rod 2 by the extrusion assembly 3, so that the forming work of the heat shrink tube is completed.

According to the heat shrinkage tube forming die provided by the embodiment of the utility model, the extrusion assembly 3 is fixedly arranged on the die main body 1, the forming rod 2 enters the first accommodating space 10 in the die main body 1 along with the extrusion assembly 3, then the melt is output into the extrusion assembly 3 for forming, the formed melt can be extruded into the first accommodating space 10 from the extrusion assembly 3 along the forming rod 2 until the formed melt is extruded to the outlet of the first accommodating space 10, the stability of the forming rod 2 and the melt can be kept, dislocation and the like are not easy to occur in the extrusion process, the working accuracy is high, and the production quality and the production efficiency are improved.

The mold body 1 includes an upper mold 12 and a lower mold 11, the upper mold 12 is movably disposed on the lower mold 11, and each has a groove 13, and when the upper mold 12 moves onto the lower mold 11, the two grooves 13 jointly enclose to form a first accommodating space 10.

In this embodiment, the radial cross sections of the two grooves 13 may be semicircular and extend along the width directions of the upper die 12 and the lower die 11, respectively, when the upper die 12 and the lower die 11 are attached, the two semicircular cavities are simultaneously attached and form the first accommodating space 10, and the first accommodating space 10 opens the width directions of the upper die 12 and the lower die 11, and after the heat shrinkage tube is formed, the heat shrinkage tube can be pushed by the extruder and move on the forming rod 2 along the length direction of the first accommodating space 10.

Specifically, the device further comprises a driving cylinder 4, wherein the driving cylinder 4 is arranged on the lower die 11 and connected to the upper die 12, and is used for driving the upper die 12 and the lower die 11 to be close to or far away from each other.

In this embodiment, the driving cylinder 4 may guide the piston to perform linear and repeated motion on the upper die 12 and the lower die 11, and the driving cylinder 4 is connected to two sides of the upper die 12 and the lower die 11, and the motion direction may be along a vertical direction, so that when the upper die 12 and the lower die 11 need to be close to each other, the driving cylinder 4 performs pneumatic operation, and the upper die 12 and the lower die 11 relatively move, thereby improving the overall working efficiency of the die.

Wherein, the lower die 11 is provided with a limiting column 110, the upper die 12 is provided with a limiting hole 120, when the driving cylinder 4 drives the upper die 12 and the lower die 11 to approach each other, the limiting column 110 enters the limiting hole 120 and stops and limits the upper die 12 and the lower die 11.

In this embodiment, the number of the limiting columns 110 and the limiting holes 120 may be four and are respectively distributed on four corners of the upper die 12 and the lower die 11, so that when the limiting columns 110 enter the limiting holes 120 to be clamped, stability between the upper die 12 and the lower die 11 can be maintained, and the positions of the upper die 12 and the lower die 11 are not easy to deviate, so that stability of the first accommodating space 10 can be maintained, and overall working efficiency is more stable.

Wherein, the extrusion assembly 3 comprises a connecting pipe 30 and a connecting pipe 31, the connecting pipe 30 is sleeved on the forming rod 2, the connecting pipe 31 is arranged on the connecting pipe 30 and communicated with each other, and the melt enters the connecting pipe 30 through the connecting pipe 31.

In this embodiment, the connecting pipe 30 and the first accommodating space 10 can be mutually adapted, and the groove 13 entering the first accommodating space 10 is inserted, so that the forming rod 2 enters the first accommodating space 10, when the connecting pipe 30 is fixed with the mold main body 1, the injection molding device outputs the melt into the groove 13 of the connecting pipe 31, the melt moves in the connecting pipe 31 and enters the connecting pipe 30, and in the injection molding process, the sealing performance and stability can be kept with the connecting pipe 31, so that the overall working efficiency is improved.

Specifically, the connecting pipe 30 is provided with a fixing clip 32 and is close to the mold body 1, and an insertion groove 14 is formed when the upper mold 12 and the lower mold 11 are attached to each other, and the fixing clip 32 is used for being inserted into the insertion groove 14 to close the first accommodating space 10.

In this embodiment, the fixing collar 32 may be protruded on the circumferential surface of the connecting pipe 30 in the radial direction and detachably connected to the connecting pipe 30, and when one end of the connecting pipe 30 enters the first accommodating space 10, the fixing collar 32 corresponds to the insertion groove 14, and the fixing collar 32 may be connected to the insertion groove 14 by a threaded connection, so that stability between the connecting pipe 30 and the mold main body 1 can be maintained when the fixing collar 32 is locked, and shaking or falling is not easily generated, thereby enabling the melt to be kept stable when the molding work is performed on the molding rod 2.

Wherein, the second accommodation space 33 is provided in the connection pipe 30, and the first accommodation space 10 and the second accommodation space 33 are communicated with each other when the molding rod 2 enters the second accommodation space 33.

In this embodiment, when the connection pipe 30 is fixed to the upper and

lower molds

12 and 11, the second receiving space 33 and the first receiving space 10 may be in communication with each other, and the melt may be introduced into the second receiving space 33 and molded on the molding rod 2, alternatively, another object of the present utility model is an extruder, which may be externally connected to the connection pipe 30, and after the melt is molded on the molding rod 2 into a heat-shrinkable tube, the extruder starts to operate, and the heat-shrinkable tube is pushed from the second receiving space 33 to the outlet position of the first receiving space 10 on the molding rod 2, thereby completing the extrusion of the heat-shrinkable tube.

Specifically, the heating element 34 is further included, and the heating element 34 is wound around the outer circumferential surface of the connection pipe 30 for heating the melt.

In this embodiment, the heating element 34 can uniformly heat the second accommodating space 33, and after the melt enters the second accommodating space 33 through the connecting pipe 31, the heating element 34 outputs the temperature into the second accommodating space 33 and heats the melt, so that the efficiency of the melt in the forming process is higher, and the quality of the formed tubular body is better.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A heat shrink tube forming die, comprising:

2. The heat shrinkable tube molding die as recited in claim 1, wherein the die body comprises an upper die and a lower die, the upper die is movably disposed on the lower die, and each of the upper die and the lower die has a groove, and when the upper die moves onto the lower die, the two grooves jointly enclose the first accommodation space.

3. The heat shrinkable tube molding die as recited in claim 2, further comprising a driving cylinder provided on the lower die and connected to the upper die for driving the upper die and the lower die toward or away from each other.

4. The heat shrinkage tube forming mold according to claim 3, wherein the lower mold is provided with a limit post, the upper mold is provided with a limit hole, and when the driving cylinder drives the upper mold and the lower mold to approach each other, the limit post enters the limit hole and stops and limits the upper mold and the lower mold.

5. The heat shrink tube forming die of claim 4, wherein the extrusion assembly comprises:

the connecting pipe is sleeved on the forming rod;

6. The heat shrinkable tube molding die of claim 5, wherein the connecting tube is provided with a fixing snap ring adjacent to the die body, an embedding groove is formed when the upper die and the lower die are mutually attached, and the fixing snap ring is used for being embedded in the embedding groove so as to seal the first accommodating space.

7. The heat shrinkage tube forming mold as claimed in claim 6, wherein the connection tube and the forming rod together form a second receiving space, and the first receiving space and the second receiving space are in communication with each other when the forming rod enters the second receiving space.

8. The heat shrinkable tube molding die of claim 7, further comprising a heating member surrounding an outer peripheral surface of the connecting tube for heating the melt.

9. An extruder comprising the heat shrinkable tube forming die according to any one of claims 1 to 8.