CN114953374A

CN114953374A - Injection molding machine injection piston rod connecting device

Info

Publication number: CN114953374A
Application number: CN202210559663.1A
Authority: CN
Inventors: 陳允誠
Original assignee: Yongqin Industry Heyuan Co ltd
Current assignee: Yongqin Industry Heyuan Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-08-30
Anticipated expiration: 2042-05-23
Also published as: CN114953374B

Abstract

The invention discloses a glue injection piston rod connecting device of an injection molding machine, which comprises a rod body, wherein the end of the rod body is fixedly connected with a piston column, the middle part of the rod body is fixedly connected with a disc, one side of the disc is fixedly connected with three cross rods in an array mode, each cross rod is fixedly connected with a first inclined block and a second inclined block, the outer side of the piston column is provided with a cylinder body, the outer side of the cylinder body is fixedly connected with a support ring, the support ring is provided with two guide holes, each guide hole is internally and slidably connected with a guide rod, one end of each guide rod is rotatably connected with a cylinder, the distance from the first inclined block to the corresponding cylinder is smaller than the distance from the second inclined block to the corresponding cylinder, the other end of each guide rod is fixedly connected with a sector block, a cavity is arranged in each sector block and is filled with cooling liquid, and a reset spring is arranged between the sector block and the support ring. The two fan-shaped blocks are separated in a grading manner, and are withdrawn back step by step according to the withdrawing position of the piston column, so that the cooling of the plastic liquid in the cylinder body is avoided while the piston column is cooled.

Description

Injection molding machine penetrates gluey piston rod jointing equipment

Technical Field

The invention relates to the technical field of injection molding machines, in particular to a connecting device for a glue injection piston rod of an injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat plastic, apply high pressure to the molten plastic, make it inject out and fill the die cavity, the injection system is one of the most important components of the injection molding machine, generally there are three main types of plunger type, screw pre-molding plunger injection type.

When cooling down the piston, because the piston is when retreating, the melt synchronous reflux of the intracavity of moulding plastics, and the coolant liquid of shell continues to cool off, causes the melt calorific loss, can't accomplish to avoid causing the melt to lose when cooling down the piston, influences the quality of injection moulding product.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a connecting device for a glue injection piston rod of an injection molding machine, so that the problems in the prior art are solved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an injection molding machine penetrates gluey piston rod jointing equipment, includes the body of rod, body of rod end fixed connection piston post, body of rod middle part fixed connection disc, the three horizontal pole of disc one side array fixed connection, the first sloping block of every horizontal pole fixed connection and second sloping block, the piston post outside sets up the barrel, barrel outside fixed connection support ring, the support ring sets up two guiding holes, a guide bar of sliding connection in every guiding hole, guide bar one end is rotated and is connected the cylinder, first sloping block is less than the second sloping block to the cylinder interval that corresponds, guide bar other end fixed connection sector, sector is inside to set up the cavity and to fill the coolant liquid, reset spring is equipped with between sector and the support ring.

Preferably, two adjacent segments are fixedly connected with the hose and communicated, one segment is fixedly connected with the injection pipe, and the other segment is fixedly connected with the discharge pipe.

Preferably, an annular groove is formed in the outer side of the cylinder, and the fan-shaped blocks are connected in the annular groove in a sliding mode.

Preferably, the outer side of the cylinder body is provided with an annular groove, and fin plates are arranged in the annular groove at intervals.

Preferably, the inner wall of the cylinder body is provided with a first annular cavity and a second annular cavity, and a communication hole is arranged between the first annular cavity and the second annular cavity.

Preferably, a vent hole is formed in one end of the second annular cavity, the vent hole extends to the outer surface of the cylinder body, an annular piston is connected in the second annular cavity in a sliding mode, and a coolant is filled in one end, far away from the vent hole, of the second annular cavity.

Preferably, a fan-shaped hole is formed between the first annular cavity and the annular groove, a rubber film is fixedly connected in the fan-shaped hole, and the rubber film is fixedly connected with the inner cambered surface of the fan-shaped block.

The invention has the advantages that: according to the injection molding machine glue injection piston rod connecting device provided by the invention, the rod body returns, the first inclined block lifts the corresponding guide rod and the corresponding sector block, so that the sector block is separated from the cylinder body, the two sector blocks are separated in times, and the piston column is withdrawn in steps according to the returning position of the piston column, so that the piston column is cooled, and the cooling of plastic liquid in the cylinder body is avoided.

According to the invention, the piston column retreats, and the second annular cavity forms the heat insulation cavity, so that the cooling of the plastic liquid in the cylinder body is further avoided, and the temperature of the plastic liquid is ensured

Drawings

FIG. 1 is a schematic diagram of the basic structure of the present invention;

FIG. 2 is an enlarged view of a portion of the invention at E in FIG. 1;

fig. 3 is a cross-sectional view a-a of fig. 1 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1-3, the injection molding machine glue injection piston rod connection device provided by the present invention comprises a rod body 1, wherein an end of the rod body 1 is fixedly connected with a piston post 11, a disk 12 is fixedly connected to the middle of the rod body 1, three cross rods 13 are fixedly connected to one side of the disk 12 in an array manner, each cross rod 13 is fixedly connected with a first inclined block 14 and a second inclined block 15, a cylinder body 2 is arranged on the outer side of the piston post 11, a support ring 3 is fixedly connected to the outer side of the cylinder body 2, the support ring 3 is provided with two guide holes, a guide rod 31 is slidably connected in each guide hole, one end of each guide rod 31 is rotatably connected with a cylinder 32, the distance from the first inclined block 14 to the corresponding cylinder 32 is smaller than the distance from the second inclined block 15 to the corresponding cylinder 32, the other end of each guide rod 31 is fixedly connected with a sector block 33, a cavity is arranged inside the sector block 33 and is filled with cooling liquid, a return spring 34 is arranged between the sector block 33 and the support ring 3, two adjacent segments 33 are fixedly connected with a hose 35 and communicated, one segment 33 is fixedly connected with an injection pipe, the other segment 33 is fixedly connected with a discharge pipe, the outer side of the barrel body 2 is provided with an annular groove 21, and the segments 33 are connected in the annular groove 21 in a sliding mode.

In the process that the body of rod 1 returns, first sloping block 14 lifts up corresponding guide bar 31 and sector 33 earlier for sector 33 breaks away from the contact with barrel 2, and first sloping block 14 is less than second sloping block 15 to the cylinder 32 interval that corresponds, makes two sector 33 break away from in grades, to the position of returning of piston post 11, carries out substep back-withdrawing, thereby when guaranteeing the cooling to piston post 11, avoid causing the cooling of the interior plastics material liquid of barrel 2.

Further, an annular groove 22 is arranged on the outer side of the cylinder body 2, fins 23 are arranged at intervals in the annular groove 22, a first annular cavity 24 and a second annular cavity 25 are arranged on the inner wall of the cylinder body 2, a communication hole 26 is arranged between the first annular cavity 24 and the second annular cavity 25, a vent hole 27 is arranged at one end of the second annular cavity 25, the vent hole 27 extends to the outer surface of the cylinder body 2, an annular piston 28 is connected in the second annular cavity 25 in a sliding mode, a coolant is filled in one end, away from the vent hole 27, of the second annular cavity 25, a fan-shaped hole 29 is arranged between the first annular cavity 24 and the annular groove 21, a rubber film 291 is fixedly connected in the fan-shaped hole 29, and the rubber film 291 is fixedly connected with the inner arc surface of the fan-shaped block 33.

When the sector block 33 is lifted, the rubber film 291 deforms to suck the first annular cavity 24, the annular piston 28 presses the coolant in the second annular cavity 25 into the first annular cavity 24, and the heat exchange is performed with the outside air through the fin 23, namely, when the piston column 11 retreats, the second annular cavity 25 forms a heat insulation cavity, so that the cooling of the plastic liquid in the cylinder body 2 is further avoided, and the temperature of the plastic liquid is ensured.

Using principle, the in-process that the body of rod 1 rolled back, and first sloping block 14 lifts up corresponding guide bar 31 and segment 33 earlier for segment 33 breaks away from the contact with barrel 2, makes two segments 33 break away from in grades, to the position of rolling back of piston post 11, carries out the substep and withdraws, thereby guarantees the cooling to piston post 11 simultaneously, avoids causing the cooling of the interior plastics material liquid of barrel 2.

Further, when the piston column 11 retreats, the second annular cavity 25 forms a heat insulation cavity, so that the cooling of the plastic liquid in the barrel body 2 is further avoided, and the temperature of the plastic liquid is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection molding machine penetrates gluey piston rod jointing equipment, includes the body of rod (1), body of rod (1) end fixed connection piston post (11), its characterized in that: a disc (12) is fixedly connected to the middle of the rod body (1), three cross rods (13) are fixedly connected to one side of the disc (12) in an array manner, each cross rod (13) is fixedly connected with a first inclined block (14) and a second inclined block (15), a cylinder body (2) is arranged on the outer side of the piston column (11), a support ring (3) is fixedly connected with the outer side of the cylinder body (2), the support ring (3) is provided with two guide holes, each guide hole is internally connected with a guide rod (31) in a sliding way, one end of the guide rod (31) is rotatably connected with a cylinder (32), the distance between the first inclined block (14) and the corresponding cylinder (32) is less than the distance between the second inclined block (15) and the corresponding cylinder (32), the other end of the guide rod (31) is fixedly connected with a sector (33), a cavity is arranged in the sector (33) and is filled with cooling liquid, a return spring (34) is arranged between the sector (33) and the support ring (3).

2. The injection molding machine injection piston rod connecting device of claim 1, wherein: two adjacent segments (33) are fixedly connected with a hose (35) and communicated, one segment (33) is fixedly connected with an injection pipe, and the other segment (33) is fixedly connected with a discharge pipe.

3. The injection molding machine injection piston rod connecting device of claim 1, wherein: the outer side of the cylinder body (2) is provided with an annular groove (21), and the fan-shaped block (33) is connected in the annular groove (21) in a sliding mode.

4. The injection molding machine injection piston rod connecting device of claim 3, wherein: the outer side of the cylinder body (2) is provided with an annular groove (22), and fin plates (23) are arranged in the annular groove (22) at intervals.

5. The injection molding machine injection piston rod connecting device of claim 4, wherein: a first annular cavity (24) and a second annular cavity (25) are arranged on the inner wall of the cylinder body (2), and a communication hole (26) is arranged between the first annular cavity (24) and the second annular cavity (25).

6. The injection molding machine injection piston rod connecting device of claim 5, wherein: and a vent hole (27) is formed in one end of the second annular cavity (25), the vent hole (27) extends to the outer surface of the barrel body (2), an annular piston (28) is connected in the second annular cavity (25) in a sliding mode, and a coolant is filled in one end, away from the vent hole (27), of the second annular cavity (25).

7. The injection molding machine injection piston rod connecting device of claim 6, wherein: a fan-shaped hole (29) is formed between the first annular cavity (24) and the annular groove (21), a rubber film (291) is fixedly connected in the fan-shaped hole (29), and the rubber film (291) is fixedly connected with the inner cambered surface of the fan-shaped block (33).