CN215619578U

CN215619578U - Injection molding machine feeding device capable of avoiding bonding

Info

Publication number: CN215619578U
Application number: CN202022878687.2U
Authority: CN
Inventors: 马斌
Original assignee: Changzhou Jiangding Precision Machinery Co ltd
Current assignee: Changzhou Jiangding Precision Machinery Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2022-01-25
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine feeding device capable of avoiding bonding, which solves the defects that a discharge port is easy to block and difficult to discharge in the prior art, and the injection molding machine feeding device capable of avoiding bonding is characterized in that a feed inlet is formed in the top end of the side wall of a hopper main body, a stirring mechanism is arranged in the hopper main body, a first discharge pipe is arranged at the bottom end of the hopper main body, a second discharge pipe is arranged on one side of the first discharge pipe, a discharge mechanism is arranged in the second discharge pipe, a heat exchange cavity is sleeved on the second discharge pipe, the temperature of the discharge port of the hopper main body can be reduced, the overhigh temperature and the blockage of the discharge port can be avoided, raw materials can be prevented from being bonded into a lump, the raw materials can be dried and preheated conveniently, and the discharging is convenient.

Description

Injection molding machine feeding device capable of avoiding bonding

Technical Field

The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine feeding device capable of avoiding bonding.

Background

An injection molding machine: it is a main forming equipment for making various shaped plastic products with thermoplastic plastics or thermosetting plastics by using plastic forming mould. Injection molding machines generally include a plastic injection molding apparatus composed of a plasticizing system, an injection system, a mold clamping system, a transmission system, etc., which is capable of heating plastic and applying high pressure to molten plastic to cause the molten plastic to be injected to fill a mold cavity.

The existing injection molding machine generally carries out feeding by arranging a hopper at a feeding hole, and generally has the following problems:

(1) the hopper is directly arranged above the feeding hole of the screw charging barrel, and during injection molding, hot gas generated by plastic melting upwells, so that plastic particles in the charging barrel can be melted, and the discharge hole is blocked;

(2) the raw materials of the injection molding machine are generally plastic particles, the raw materials need to be dried before melting, and when the raw materials are not completely dried, the raw material particles can be bonded into a cluster and are not easy to discharge;

(3) when the plastic particles are not completely crushed, the particles are larger, the speed is slower when the plastic is melted, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bonding-avoiding feeding device of an injection molding machine, which aims to solve the problems that a discharge port is easy to block and difficult to discharge in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: avoid the injection molding machine feed arrangement who bonds, the top of hopper main part lateral wall is provided with the feed inlet, the inside rabbling mechanism that is provided with of hopper main part, the bottom of hopper main part is provided with first discharging pipe, and one side of first discharging pipe is provided with the second discharging pipe, the inside of second discharging pipe is provided with discharge mechanism, the heat transfer chamber has been cup jointed on the second discharging pipe.

Preferably, one end of the feed inlet, which is close to the hopper body, is provided with a protruding part, through holes are uniformly formed in the side wall of the protruding part, through holes matched with the protruding part are formed in the side walls of two sides of the hopper body, and the protruding part and the hopper body are fixedly connected through bolts.

Preferably, rabbling mechanism includes first motor, first pivot, stirring vane and scraper blade, the top cap is installed on the top of hopper main part, the top at the top cap is installed to first motor, the output fixed connection of first pivot and first motor, and first pivot extend to the inside of hopper main part, stirring vane installs the upper end at first pivot, the bottom at first pivot is installed through the bracing piece to the scraper blade.

Preferably, the top of hopper main part is cylindrical, and the bottom of hopper main part is conical structure, stirring vane sets up the top at hopper main part, the scraper blade passes through the bracing piece setting in hopper main part's bottom, and scraper blade and hopper main part's inside wall sliding connection.

Preferably, a coiled pipe is arranged inside the heat exchange cavity, and an inlet and an outlet of the coiled pipe both extend to the outside of the heat exchange cavity.

Preferably, discharge mechanism includes helical blade, second motor and second pivot, the second motor is installed in one side of second discharging pipe, the output end fixed connection of second pivot and second motor, and the second pivot extends to the inside of second discharging pipe, helical blade fixes in the inside second pivot of second discharging pipe.

Preferably, one side of the top end of the second discharging pipe, which is far away from the first discharging pipe, is provided with a connecting pipe, and the other end of the connecting pipe is communicated with the hopper main body.

Preferably, threaded connection between one end of the second discharging pipe and the first discharging pipe, the one end of the second discharging pipe far away from the first discharging pipe is provided with a discharging hole with a downward opening.

Compared with the prior art, the utility model has the beneficial effects that: this avoid injection molding machine feed arrangement who bonds

(1) The bottom end of the hopper main body is provided with the second discharging pipe, the inner part of the second discharging pipe is provided with the helical blade, the second motor and the second rotating shaft, raw materials are conveniently conveyed to the inner part of the screw charging barrel, the outer part of the second discharging pipe is sleeved with the heat exchange cavity, the inner part of the heat exchange cavity is provided with the coiled pipe, cooling water is continuously introduced into the inner part of the coiled pipe, heat dissipation of the second discharging pipe is facilitated, hot air in the charging barrel is prevented from entering the inner part of the second discharging pipe, melting of the raw materials is caused, and therefore blockage of a discharging port is caused, the second discharging pipe is movably connected with the hopper main body, and the hopper main body is convenient to disassemble and clean;

(2) the stirring mechanism, the first motor, the first rotating shaft, the stirring blades and the scraper are arranged in the hopper main body, so that raw materials can be stirred, the raw materials are prevented from being coagulated, blanking is facilitated, meanwhile, the temperature of all positions in the hopper main body is consistent, and the temperature of the bottom of the hopper main body is prevented from being high;

set up the feed inlet through the top at the hopper main part, and one side of feed inlet is provided with the bulge, and evenly is provided with the through-hole on the bulge, can filter wherein broken incomplete plastic granules when adding the raw materials to hopper main part inside, and the feed inlet can be dismantled with the hopper main part simultaneously and be connected, is convenient for carry out secondary treatment to the granule of collecting.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic top view of the hopper body of the present invention;

FIG. 4 is a schematic top view of a feed inlet according to the present invention.

In the figure: 1. a hopper body; 101. a first discharge pipe; 102. a top cover; 2. a feed inlet; 201. a projection; 3. a stirring mechanism; 301. a first motor; 302. a first rotating shaft; 303. a stirring blade; 304. A squeegee; 4. a connecting pipe; 5. a heat exchange cavity; 501. a serpentine tube; 6. a discharging mechanism; 601. a helical blade; 602. a second motor; 603. a second rotating shaft; 7. a second discharge pipe; 8. a screw barrel; 9. and (4) a bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: the injection molding machine feeding device avoids bonding, a feeding hole 2 is formed in the top end of the side wall of a hopper main body 1, a protruding portion 201 is arranged at one end, close to the hopper main body 1, of the feeding hole 2, through holes are uniformly formed in the side wall of the protruding portion 201, through holes matched with the protruding portion 201 are formed in the side walls of the two sides of the hopper main body 1, the protruding portion 201 is fixedly connected with the hopper main body 1 through bolts, plastic raw materials poured into the hopper main body 1 can be screened, and large plastic particles are prevented from entering the hopper main body 1 and affecting the melting rate of the plastic;

the stirring mechanism 3 is arranged inside the hopper main body 1, the stirring mechanism 3 comprises a first motor 301, a first rotating shaft 302, stirring blades 303 and a scraper 304, the top cover 102 is installed at the top end of the hopper main body 1, the first motor 301 is installed at the top end of the top cover 102, the first rotating shaft 302 is fixedly connected with the output end of the first motor 301, the first rotating shaft 302 extends into the hopper main body 1, the stirring blades 303 are installed at the upper end of the first rotating shaft 302, and the scraper 304 is installed at the bottom end of the first rotating shaft 302 through a support rod, so that plastic particles in the hopper main body 1 can be stirred, the plastic particles are prevented from being bonded into a mass and are difficult to discharge, and meanwhile, the temperature of all parts inside the hopper main body 1 is consistent;

the top of the hopper body 1 is cylindrical, the bottom of the hopper body 1 is conical, the stirring blades 303 are arranged at the top of the hopper body 1, the scraping plates 304 are arranged at the bottom of the hopper body 1 through support rods, the scraping plates 304 are in sliding connection with the inner side wall of the hopper body 1, and the scraping plates 304 can prevent plastic raw materials from being fused or bonded on the side wall of the hopper body 1 in a damp mode;

the bottom end of the hopper main body 1 is provided with a first discharging pipe 101, one side of the first discharging pipe 101 is provided with a second discharging pipe 7, the first discharging pipe 101 is of an L-shaped structure, the second discharging pipe 7 is of a 7-shaped structure, one end of the second discharging pipe 7 is in threaded connection with the first discharging pipe 101, the disassembly and the cleaning are convenient, one end, away from the first discharging pipe 101, of the second discharging pipe 7 is provided with a discharging port with a downward opening, as shown in fig. 1, the hopper main body 1 is installed at the top end of the screw charging barrel 8 through a support 9, and the discharging port of the second discharging pipe 7 is communicated with the screw charging barrel 8, so that hot gas inside the screw charging barrel 8 is prevented from directly entering the hopper main body 1 to cause the blockage of the discharging port;

a connecting pipe 4 is arranged on one side, away from the first discharging pipe 101, of the top end of the second discharging pipe 7, the other end of the connecting pipe 4 is communicated with the hopper main body 1, and part of hot air which upwells from the interior of the screw charging barrel 8 enters the interior of the hopper main body 1 through the connecting pipe 4, so that raw materials can be dried and preheated, and the waste of heat is reduced;

a discharging mechanism 6 is arranged inside the second discharging pipe 7, the discharging mechanism 6 comprises a helical blade 601, a second motor 602 and a second rotating shaft 603, the second motor 602 is installed at one side of the second discharging pipe 7, the second rotating shaft 603 is fixedly connected with the output end of the second motor 602, the second rotating shaft 603 extends into the second discharging pipe 7, and the helical blade 601 is fixed on the second rotating shaft 603 inside the second discharging pipe 7, so that raw materials can be conveniently conveyed to one side, and automatic supply of the raw materials is realized;

the heat transfer chamber 5 has been cup jointed on second discharging pipe 7, and the inside of heat transfer chamber 5 is provided with coiled pipe 501, and the import and the export of coiled pipe 501 all extend to the outside of heat transfer chamber 5, and the during operation constantly lets in the cooling water to the inside of coiled pipe 501, with the inside cooling water heat transfer in heat transfer chamber 5, avoids the high temperature of 7 departments of second discharging pipe, leads to the melting of inside raw materials, leads to the jam of pipeline then.

The working principle is as follows: the hopper main body 1 is installed at the top end of the screw rod charging barrel 8 through the support 9, a discharging port of the second discharging pipe 7 is communicated with the screw rod charging barrel 8, when the hopper main body works, plastic particles are firstly poured into the feeding port 2, particles which are not completely crushed are remained in the feeding port 2, smaller particles enter the hopper main body 1, switches of the first motor 301 and the second motor 602 are turned on, the second motor 602 drives the stirring blade 303 and the scraper 304 to rotate, the plastic particles in the hopper main body 1 are stirred to avoid agglomeration, the plastic particles enter the second discharging pipe 7 through the first discharging pipe 101, the second motor 602 drives the helical blade 601 to rotate, the plastic particles are conveyed to the inside of the screw rod charging barrel 8, cooling water is added into the inside of the heat exchange cavity 5, the cooling water is introduced into the inside of the coiled pipe 501 to continuously exchange heat with the cooling water in the heat exchange cavity 5, and the second discharging pipe 7 is convenient to dissipate heat, avoid 8 inside steam of screw rod feed cylinder to upwelling and lead to the raw materials to melt in second discharging pipe 7 is inside, cause the jam, through connecting pipe 4 intercommunication hopper main part 1 and second discharging pipe 7, partial steam gets into hopper main part 1's inside, can dry and preheat 1 inside raw materials of hopper main part, reduces the waste of heat.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Avoid injection molding machine feed arrangement who bonds, its characterized in that: comprises a hopper body (1), wherein a feed inlet (2) is formed in the top end of the side wall of the hopper body (1), a stirring mechanism (3) is arranged in the hopper body (1), a first discharge pipe (101) is arranged at the bottom end of the hopper body (1), a second discharge pipe (7) is arranged on one side of the first discharge pipe (101), a discharge mechanism (6) is arranged in the second discharge pipe (7), the discharge mechanism (6) comprises a spiral blade (601), a second motor (602) and a second rotating shaft (603), the second motor (602) is arranged on one side of the second discharge pipe (7), the second rotating shaft (603) is fixedly connected with the output end of the second motor (602), the second rotating shaft (603) extends to the inside of the second discharge pipe (7), and the spiral blade (601) is fixed on the second rotating shaft (603) in the second discharge pipe (7), and the second discharge pipe (7) is sleeved with a heat exchange cavity (5).

2. The sticking-free feed device for injection molding machines of claim 1, wherein: one end of the feed inlet (2) close to the hopper body (1) is provided with a protruding portion (201), through holes are evenly formed in the side wall of the protruding portion (201), through holes matched with the protruding portion (201) are formed in the side walls of the two sides of the hopper body (1), and the protruding portion (201) is fixedly connected with the hopper body (1) through bolts.

3. The sticking-free feed device for injection molding machines of claim 1, wherein: rabbling mechanism (3) include first motor (301), first pivot (302), stirring vane (303) and scraper blade (304), top cap (102) are installed on the top of hopper main part (1), the top at top cap (102) is installed in first motor (301), the output fixed connection of first pivot (302) and first motor (301), and first pivot (302) extend to the inside of hopper main part (1), the upper end at first pivot (302) is installed in stirring vane (303), the bottom at first pivot (302) is installed through the bracing piece in scraper blade (304).

4. The sticking-free feed device for injection molding machines of claim 3, wherein: the top of hopper main part (1) is cylindrical, and the bottom of hopper main part (1) is conical structure, stirring vane (303) set up the top at hopper main part (1), scraper blade (304) pass through the bracing piece setting in the bottom of hopper main part (1), and scraper blade (304) and the inside wall sliding connection of hopper main part (1).

5. The sticking-free feed device for injection molding machines of claim 1, wherein: the inside of heat transfer chamber (5) is provided with coiled pipe (501), and the import and the export of coiled pipe (501) all extend to the outside of heat transfer chamber (5).

6. The sticking-free feed device for injection molding machines of claim 1, wherein: one side of the top end of the second discharging pipe (7) far away from the first discharging pipe (101) is provided with a connecting pipe (4), and the other end of the connecting pipe (4) is communicated with the hopper body (1).

7. The sticking-free feed device for injection molding machines of claim 1, wherein: threaded connection between one end of second discharging pipe (7) and first discharging pipe (101), the one end that first discharging pipe (101) were kept away from in second discharging pipe (7) is provided with the downward discharge gate of opening.