CN220095428U

CN220095428U - Protection device for preventing glue leakage

Info

Publication number: CN220095428U
Application number: CN202321245818.0U
Authority: CN
Inventors: 陈明华
Original assignee: Shanghai Jinke Plastic Technology Co ltd
Current assignee: Shanghai Jinke Plastic Technology Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-11-28
Anticipated expiration: 2033-05-22

Abstract

The utility model relates to a protection device for leakage-proof glue, which comprises a first cover body, a second cover body and a locking component, wherein the first cover body and the second cover body are arranged on a charging barrel, are close to one end of a nozzle and are distributed around the periphery of the charging barrel, the locking component is used for locking or unlocking the first cover body and the second cover body relatively, each first cover body and each second cover body comprises an end plate and a side plate which extends from the end plate to the direction far away from the nozzle, when the first cover body and the second cover body are relatively locked, the two end plates are spliced and respectively abut against the surface of the charging barrel from the inner side, and the two side plates are spliced and respectively arranged at intervals with a heating ring on the charging barrel. The utility model adopts the two covers to be relatively locked to form a closed protection area, wherein the two end plates are abutted against the surface of the charging barrel to eliminate the fit clearance, thereby effectively reducing the glue leakage probability, and meanwhile, the two side plates and the heating ring are arranged at intervals to form a space for heat dissipation, thereby effectively preventing the temperature from being too high, prolonging the service life of the electric wire and improving the production safety.

Description

Protection device for preventing glue leakage

Technical Field

The utility model belongs to the field of injection molding machines, and particularly relates to a protection device for glue leakage prevention.

Background

The periphery of the charging barrel of the injection molding machine is generally provided with a heating ring, one end part of the charging barrel is provided with a nozzle, when plastic is extruded through the nozzle, if the charging barrel nozzle and a cavity are not aligned or are not tightly closed, the phenomena of glue leakage and glue overflow can occur, and if overflowed molten plastic is not cleaned in time, the molten plastic can spread to the heating ring on the charging barrel, so that the heating ring is damaged; when the temperature of the heating coil is too high, the sol may be ignited, causing a fire.

At present, aiming at the problems, the existing solution measure is that a cloth-made protective sleeve is sleeved at a nozzle of an injection molding machine charging barrel, and an external connecting piece such as an iron wire is adopted to tie up and fix the protective sleeve on the injection molding machine charging barrel, so that a heating ring is covered in the protective sleeve in the injection molding process to avoid contact with sol.

However, in the actual production process, there are the following drawbacks:

1. when the external parts such as iron wires are adopted for binding, as the protective sleeve is made of flexible materials, gaps are easy to exist between the protective sleeve and the charging barrel due to improper operation, so that the high glue leakage probability is caused;

2. the heat dissipation between the protective sleeve and the charging barrel is poor, high temperature is easy to form, and the electric wire connected to the heating ring can be aged at high temperature, so that potential safety hazards exist.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing an improved anti-leakage protection device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a protection device of leak protection glue, it includes the setting is close to nozzle one end on the feed cylinder and around the first cover body and the second cover body of feed cylinder periphery distribution, be used for with the relative locking or unlocking of first cover body and second cover body, wherein first cover body and second cover body respectively include the end plate, from the end plate to the curb plate that keeps away from nozzle direction extension, when first cover body and second cover body are relative locking, two end plates splice and respectively from the inside conflict at the surface of feed cylinder, two curb plates splice and respectively with the heating circle on the feed cylinder set up in the interval, and form the protection zone of closure in feed cylinder circumference between first cover body and the second cover body.

Preferably, the plane of each end plate is arranged perpendicular to the centre line of the cartridge. Here, the end plate has the best blocking effect against the sol, and effectively prevents the sol from rushing toward the heating ring.

Preferably, each end plate is disposed flush with a corresponding end face of the cartridge when the first and second covers are relatively locked. Here, the solidified plastic is conveniently cleaned.

Preferably, each side plate extends axially along the cartridge from the outside edge of the corresponding end plate.

Preferably, each side plate has an extension in the axial direction of the cylinder of greater than or equal to 16mm.

Preferably, the two side plates are rotatably connected from the end portions by a hinge. Here, the structure is simple, and the assembly is convenient.

Preferably, the first and second covers are symmetrically disposed about a centerline of the cartridge. The same mold can be used for processing and manufacturing, which is beneficial to reducing the cost.

Preferably, both the end plates and the side plates are metal plates. Here, the cooperation between end plate and curb plate and the feed cylinder is better, effectively reduces the probability of leaking the material.

Preferably, the locking part comprises a belt body and a locking piece respectively arranged on the two side plates, wherein a locking groove is formed on the belt body; the locking piece comprises a lock seat formed with a through groove and a locking part arranged in the through groove and matched with the lock groove, the belt body is inserted into the through groove, and the locking part is spliced with the lock groove to form locking.

Further, the locking grooves are multiple and are distributed at intervals along the belt body; the lock seat comprises a first split body fixed on a corresponding side plate and a second split body detachably connected to the first split body, wherein a through groove is formed between the first split body and the second split body, and the locking part comprises a pin shaft inserted in the through groove and a protrusion extending spirally around the periphery of the pin shaft and matched with the locking groove. The tightness of the fit between the first cover body and the second cover body and the charging barrel can be gradually adjusted according to actual conditions, so that adverse effects caused by deformation of the cover bodies in frequent use are eliminated.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

the protection sleeve in the prior art has the defects of higher glue leakage probability caused by fit clearance and high temperature easy to form due to poor heat dissipation, and the utility model can effectively reduce glue leakage probability by relatively locking the first cover and the second cover, and respectively abutting against the surface of the charging barrel from the inner side by splicing the two end plates, and respectively arranging the two side plates at intervals with the heating ring, so that a protection area which is closed in the circumferential direction of the charging barrel can be formed between the first cover and the second cover.

Drawings

FIG. 1 is a schematic view of a three-dimensional assembly structure of a protecting device and a cartridge (first view angle) according to the present utility model;

FIG. 2 is a schematic view of a three-dimensional assembly structure of a protecting device and a cartridge according to the present utility model (second view);

FIG. 3 is an enlarged schematic view of the structure of the protection device in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure shown in FIG. 2A;

wherein: t, a charging barrel; z, nozzle; q, heating ring;

1. a first cover; 2. a second cover; a1, end plates; a2, a side plate; q, a protection area; j. a hinge;

3. a locking member; 30. a belt body; 300. a locking groove; 31. a locking member; 310. a lock base; b1, a first split; b2, a second split; c. a through groove; 311. a locking part; d1, a pin shaft; d2, protruding.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

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", "radial", "circumferential", 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 simplifying 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically 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 formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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 "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1 to 4, the injection molding machine cylinder T according to the present embodiment has a nozzle Z formed at one end and a heating ring Q provided in the circumferential direction; the protection device for preventing glue leakage in this embodiment comprises a first cover 1 and a second cover 2 arranged on a charging barrel T near one end of a nozzle Z and distributed around the periphery of the charging barrel T, and a locking component 3 for locking or unlocking the first cover 1 and the second cover 2 relatively.

Specifically, the first cover 1 and the second cover 2 are symmetrically arranged about the central line of the charging barrel T, where each of the first cover 1 and the second cover 2 includes an end plate a1, and a side plate a2 extending from the end plate a1 to a direction far away from the nozzle Z, and when the first cover 1 and the second cover 2 are locked relatively, the two end plates a1 are spliced from the end and respectively abut against the surface of the charging barrel T from the inner side, the two side plates a2 are spliced from the end and are respectively opened separately from the heating ring Q on the charging barrel T, and a protection area Q closed in the circumferential direction of the charging barrel T is formed between the first cover 1 and the second cover 2.

Each end plate a1 and each side plate a2 are arc-shaped plates extending circumferentially around the charging barrel T, wherein the plane of each end plate a1 is perpendicular to the central line of the charging barrel T, and when the first cover body 1 and the second cover body 2 are locked relatively, each end plate a1 is flush with the corresponding end surface of the charging barrel T; each side plate a2 extends axially along the cartridge T from the outer side edge of the corresponding end plate a1, and the extension length of each side plate a2 in the axial direction of the cartridge T is greater than or equal to 16mm, specifically, the extension length of each side plate a2 is 16mm.

For convenience of implementation, each end plate a1 and each side plate a2 are made of metal plates, wherein the two side plates a2 are rotatably connected and arranged from one end through a hinge j.

In this example, the locking member 3 includes a belt body 30 and a locking piece 31 provided on both side plates a2, respectively, wherein a locking groove 300 is formed on the belt body 30; the locking member 31 includes a locking seat 310 formed with a through groove c, and a locking portion 311 provided in the through groove 310 and matched with the locking groove 300, and the band 30 is inserted into the through groove c, and the locking portion 311 is inserted into the locking groove 300 to form locking.

Further, the locking grooves 300 are plural and are spaced along the belt body 30; the lock base 310 includes a first split b 1 fixed on a corresponding side plate a2, and a second split b2 detachably connected to the first split b 1, wherein a through slot c is formed between the first split b 1 and the second split b2, and the locking portion 311 includes a pin d1 inserted in the through slot c, a protrusion d2 extending spirally around the periphery of the pin d1 and matching with the lock slot 300, when the belt 30 is inserted in the through slot c, the protrusion d2 is inserted in the lock slot 300, and in rotation of the pin d1, the protrusion d2 drives the belt 30 to move synchronously to adjust tightness of the matching among the first cover 1, the second cover 2, and the material cylinder T.

Therefore, the present embodiment has the following advantages:

1. the two covers are oppositely locked to form a closed protection area, wherein the two end plates are abutted against the surface of the charging barrel to eliminate a fit clearance, so that the glue leakage probability is effectively reduced, and meanwhile, the two side plates and the heating ring are arranged at intervals to form a space for heat dissipation, so that the overhigh temperature is effectively prevented, the service life of the electric wire is prolonged, and the production safety is improved;

2. the plane of the end plate is perpendicular to the central line of the charging barrel, and at the moment, the end plate has the best blocking effect on the sol; meanwhile, the end plate is arranged flush with the end surface of the charging barrel, so that the solidified plastic can be cleaned in a later period;

3. through the cooperation of locking part and a plurality of locked groove, can gradually adjust first, second cover body and feed cylinder between complex compactness according to actual conditions to eliminate the adverse effect that deformation that each cover body produced in frequent use brought.

The present utility model has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present utility model and to implement the same, but not to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A protection device of leak protection glue, its characterized in that: the device comprises a first cover body and a second cover body which are arranged on a charging barrel, are close to one end of a nozzle and are distributed around the periphery of the charging barrel, and a locking component used for locking or unlocking the first cover body and the second cover body relative to each other, wherein the first cover body and the second cover body respectively comprise an end plate and side plates which extend from the end plates to the direction away from the nozzle, when the first cover body and the second cover body are relatively locked, the two end plates are spliced and respectively abutted against the surface of the charging barrel from the inner side, the two side plates are spliced and are respectively arranged at intervals with a heating ring on the charging barrel, and a protection area which is closed in the circumferential direction of the charging barrel is formed between the first cover body and the second cover body.

2. The leakage protection device of claim 1, wherein: the plane of each end plate is perpendicular to the central line of the charging barrel.

3. The leakage protection device of claim 2, wherein: when the first cover body and the second cover body are relatively locked, each end plate is arranged flush with the corresponding end face of the charging barrel.

4. The leakage protection device of claim 1, wherein: each of the side plates extends axially along the cylinder from an outer side edge of the corresponding end plate.

5. The leakage protection device of claim 1, wherein: the extension length of each side plate in the axial direction of the material cylinder is larger than or equal to 16mm.

6. The leakage protection device of claim 1, wherein: the two side plates are rotatably connected and arranged from the end parts through hinges.

7. The leakage protection device of claim 1, wherein: the first cover body and the second cover body are symmetrically arranged relative to the central line of the charging barrel.

8. The protective device for leakage preventing glue according to any one of claims 1 to 7, characterized in that: the end plates and the side plates are all made of metal plates.

9. The leakage protection device of claim 1, wherein: the locking part comprises a belt body and a locking piece which are respectively arranged on the two side plates, wherein a locking groove is formed on the belt body; the locking piece comprises a lock seat formed with a through groove and a locking part arranged in the through groove and matched with the lock groove, the belt body is inserted into the through groove, and the locking part is inserted into the lock groove to form locking.

10. The leakage protection device of claim 9, wherein: the locking grooves are multiple and are distributed at intervals along the belt body; the lock seat comprises a first split body fixed on the corresponding side plate and a second split body detachably connected to the first split body, wherein a through groove is formed between the first split body and the second split body, and the locking part comprises a pin shaft inserted into the through groove and a protrusion extending spirally around the periphery of the pin shaft and matched with the locking groove.