CN212979213U

CN212979213U - Core rod for injection blow hollow molding machine

Info

Publication number: CN212979213U
Application number: CN202021812505.5U
Authority: CN
Inventors: 黄秋峰; 张玉建
Original assignee: Zhangjiagang Newmai Machinery Co ltd
Current assignee: Zhangjiagang Newmai Machinery Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-16
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to an annotate and blow make-up machine technical field, concretely relates to annotate and blow plug for cavity make-up machine, the package rubbing board comprises a core, core tip medial surface fixedly connected with baffle one, the inside fixedly connected with spiral pipe of core with advance oil pipe, it is located the inside one end fixedly connected with baffle two of core to advance oil pipe lateral wall, the oil groove with spiral pipe one end fixed connection is seted up to the baffle two sides, the side fixedly connected with fixed plate of the relative baffle one side of core. The utility model discloses in, through core fixedly connected with spiral pipe with advance oil pipe, inside fluid can get into the plug from advancing oil pipe, then flow into the spiral pipe, the fluid that flows into the spiral pipe can heat or cool off the plug to the temperature of control plug, spiral pipe and plug have great area of contact, have better cooling or heating effect to the plug, thereby improve going on of the temperature control effect of plug, the production of being convenient for.

Description

Core rod for injection blow hollow molding machine

Technical Field

The utility model relates to an annotate and blow make-up machine technical field, concretely relates to annotate and blow plug for cavity make-up machine.

Background

The injection blow molding machine is mainly used for molding production of plastic bottles, and generally adopts a three-station mold, and can complete injection, blow molding and demolding on one mold, while a core rod is a main part during production.

When the existing core rod is used, the parison is directly contacted with air when the parison is transferred to a mold cavity, and the temperature of the parison cannot be maintained, so the existing core rod generally heats or cools the core rod through oil, but the contact area of the oil and the core rod is small, so that the temperature control effect of the core rod is not ideal, and the production is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem, an object of the utility model is to provide an annotate and blow cavity plug for make-up machine, through core fixedly connected with spiral pipe with advance oil pipe, inside fluid can get into the plug from advancing oil pipe, then flow into the spiral pipe, the fluid that advances the spiral pipe can heat or cool off the plug to the temperature of control plug, the spiral pipe has great area of contact with the plug, there is better cooling or heating effect to the plug, thereby improve the temperature control effect to the plug, the going on of being convenient for produce.

The purpose of the utility model can be realized by the following technical scheme:

a core rod for an injection blow hollow molding machine comprises a core body, wherein a first partition plate is fixedly connected to the inner side face of the small end of the core body, a spiral tube and an oil inlet tube are fixedly connected to the interior of the core body, oil can enter the interior of the core rod from the oil inlet tube, a second partition plate is fixedly connected to one end, located in the interior of the core body, of the outer side wall of the oil inlet tube, oil grooves fixedly connected with one end of the spiral tube are formed in the two side faces of each partition plate, the oil flowing between the first partition plate and the second partition plate can flow into the spiral tube through the oil grooves, and the core body can;

the side surface of one side of the core body opposite to the partition board is fixedly connected with a fixed board, the central position of the side surface of the fixed board is fixedly connected with an air pipe, air can be injected into the air pipe, one side surface of the partition board and the side wall of the oil inlet pipe are fixedly connected with the outer side wall of the air pipe, the position of the air pipe can be fixed by the partition board and the oil inlet pipe, the side surface of the core body is fixedly connected with a connecting shell fixedly connected with the partition board, one side surface of the partition board is positioned in the connecting shell and is fixedly connected with a spring, the spring is fixedly connected with a sliding block, the inner side wall of the connecting shell and the outer side wall of the air pipe are both slidably connected with the sliding block, the sliding block can move along the air pipe direction, one end of the air pipe, after the air enters the air pipe, the air can be blown into the fixed shell and then blown to the sliding block, so that the sliding block is separated from the fixed shell, and at the moment, the air can be blown into the parison to form the parison.

Further, the method comprises the following steps: the fixed cover that has connected the slip ring in the one end that the sliding block lateral wall is located the spring, connect the shell inside wall and offer the spacing groove with slip ring sliding connection, the displacement that the sliding block can be restricted in the spacing groove.

Further, the method comprises the following steps: the thickness of spacing groove is greater than the thickness of slip ring, avoids the sliding block can't break away from with the set casing.

Further, the method comprises the following steps: the length of spring under natural state equals the distance between the two opposite faces of baffle one and sliding block, and under the effect of spring, the sliding block can be laminated with the set casing, avoids when forming the parison, and the fused plastics gets into in the set casing, avoids the set casing to be stopped up.

Further, the method comprises the following steps: the diameter of the outer contour circle of the cross section of the air pipe is smaller than that of the inner contour circle of the cross section of the top end of the oil inlet pipe, so that the phenomenon that oil cannot flow in the oil inlet pipe is avoided.

Further, the method comprises the following steps: the distance between the fixed plate and the second partition plate is smaller than the length of the core body, and the situation that oil cannot enter the spiral pipe through the oil groove is avoided.

The utility model has the advantages that:

1. the spiral tube and the oil inlet tube are fixedly connected through the core body, the oil inlet tube is fixedly connected with the second partition plate, the second partition plate is provided with an oil groove fixedly connected with the spiral tube, oil can enter the core rod from the oil inlet tube and then flows between the first partition plate and the second partition plate, the oil can flow into the spiral tube through the oil groove, the spiral tube is in direct contact with the core rod and can heat or cool the core rod, so that the temperature of the core rod is controlled, the spiral tube has a larger contact area with the core rod, the core rod has a better cooling or heating effect, the temperature control effect on the core rod is improved, and the production is facilitated;

2. through a baffle fixedly connected with spring, spring fixedly connected with sliding block, connect the shell and trachea all with sliding block sliding connection, when forming the parison, under the effect of spring, the sliding block can avoid in the molten plastics gets into the set casing, during the shaping, can blow into the air from the trachea, then the air can get into inside the set casing, under atmospheric pressure's effect, can make sliding block and set casing separation, at this moment in the air can blow into the parison on connecting shell and the set casing, blow into the bottle form with the parison, so not only can avoid in the molten plastics gets into the trachea, the set casing removes when also can avoiding blowing and produces the influence to the shaping of bottle, be convenient for going on of production.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the central core body of the present invention;

FIG. 3 is a schematic view of the structure of the spiral pipe of the present invention;

fig. 4 is the structural schematic diagram of the sliding block in the present invention.

In the figure: 1. a core body; 11. a first clapboard; 12. a fixing plate; 2. a connecting shell; 21. a limiting groove; 3. a slider; 31. a slip ring; 4. a stationary case; 5. a spiral tube; 6. an air tube; 61. connecting blocks; 7. an oil inlet pipe; 71. a second clapboard; 8. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a core rod for an injection blow molding hollow forming machine comprises a core body 1, a first partition plate 11 is fixedly connected to the inner side surface of the small end of the core body 1, a spiral tube 5 and an oil inlet tube 7 are fixedly connected to the inside of the core body 1, oil can enter the core rod from the oil inlet tube 7, a second partition plate 71 is fixedly connected to one end, located inside the core body 1, of the outer side wall of the oil inlet tube 7, an oil groove fixedly connected to one end of the spiral tube 5 is formed in the side surface of the second partition plate 71, oil flowing between the first partition plate 11 and the second partition plate 71 can flow into the spiral tube 5 through the oil groove, and the core body 1 can be heated or cooled;

the side surface of the core body 1 opposite to one side of the first partition plate 11 is fixedly connected with a fixed plate 12, the central position of the side surface of the fixed plate 12 is fixedly connected with an air pipe 6, air can be injected into the air pipe 6, the side surface of the first partition plate 11 and the side wall of the oil inlet pipe 7 are fixedly connected with the outer side wall of the air pipe 6, the position of the air pipe 6 can be fixed by the first partition plate 11 and the oil inlet pipe 7, the side surface of the core body 1 is fixedly connected with a connecting shell 2 fixedly connected with the first partition plate 11, the side surface of the first partition plate 11 is positioned in the connecting shell 2 and is fixedly connected with a spring 8, the spring 8 is fixedly connected with a sliding block 3, the inner side wall of the connecting shell 2 and the outer side wall of the air pipe 6 are both in sliding connection with the sliding block 3, the sliding block, the parison can be formed on the connecting shell 2 and the fixed shell 4, and after air enters the air pipe 6, the air can be blown into the fixed shell 4 and then blown to the sliding block 3 to separate the sliding block 3 from the fixed shell 4, and at the moment, the air can be blown into the parison to form the parison.

The fixed cover of the one end that the lateral wall of sliding block 3 is located spring 8 has connect slip ring 31, and connect 2 inside walls of housing and offer the spacing groove 21 with slip ring 31 sliding connection, spacing groove 21 can limit the displacement of sliding block 3. The thickness of the limiting groove 21 is larger than that of the sliding ring 31, so that the sliding block 3 is prevented from being separated from the fixed shell 4. Spring 8 length under natural condition equals the distance between two opposite faces of baffle 11 and sliding block 3, and under spring 8's effect, sliding block 3 can laminate with set casing 4, avoids when forming the parison, and the fused plastics gets into set casing 4 in, avoids set casing 4 to be stopped up. The diameter of the outer contour circle of the cross section of the air pipe 6 is smaller than that of the inner contour circle of the cross section of the top end of the oil inlet pipe 7, so that the phenomenon that oil cannot flow in the oil inlet pipe 7 is avoided. The distance between the fixed plate 12 and the second partition plate 71 is smaller than the length of the core body 1, so that the situation that oil cannot enter the spiral pipe 5 through an oil groove is avoided.

When using, fluid flows to the other end of core 1 from the one end of core 1 through advancing oil pipe 7, then flow to the one end that core 1 is located fixed plate 12 through spiral pipe 5, can all set up the business turn over pipe of fluid in the one end of relatively fixed shell 4 like this, avoid the business turn over pipe of fluid to influence the shaping of bottle, and can make fluid flow through whole core 1, when blowing, the air makes sliding block 3 break away from with set casing 4, not only make sliding block 3 can block fused plastics and get into trachea 6 like this, connect shell 2 and set casing 4 to remove when also can avoiding blowing, avoid producing the influence to the shaping of parison.

The working principle is as follows: when in use, under the action of the spring 8, the sliding block 3 can be attached to the fixed shell 4, a parison can be formed on the core rod, then the parison and the core rod are transferred into a mould cavity, air can be blown into the air pipe 6, the air blown into the air pipe 6 can enter the fixed shell 4 and then is blown to the sliding block 3, the sliding block 3 is separated from the fixed shell 4, thus the air can be blown into the parison, after the parison is blown into a bottle, the blowing is stopped, under the action of the spring 8, the sliding block 3 can come back into abutment with the fixed shell 4, during which, oil can be injected into the oil inlet pipe 7, the oil can flow into the space between the first partition plate 11 and the second partition plate 71 from the oil inlet pipe 7, then the oil can flow into spiral pipe 5 through the oil groove, flows out spiral pipe 5 at last, and the interior oil of spiral pipe 5 can heat or cool off the plug to the temperature of plug is controlled in the in-process of production.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. The core rod for the injection blow hollow molding machine is characterized by comprising a core body (1), wherein a first partition plate (11) is fixedly connected to the inner side surface of the small end of the core body (1), a spiral tube (5) and an oil inlet tube (7) are fixedly connected to the inside of the core body (1), a second partition plate (71) is fixedly connected to one end, located inside the core body (1), of the outer side wall of the oil inlet tube (7), and an oil groove fixedly connected with one end of the spiral tube (5) is formed in the side surface of the second partition plate (71);

the side surface of one side of the core body (1) opposite to the first partition plate (11) is fixedly connected with a fixing plate (12), the central position of the side surface of the fixed plate (12) is fixedly connected with an air pipe (6), the side surface of the first clapboard (11) and the side wall of the oil inlet pipe (7) are fixedly connected with the outer side wall of the air pipe (6), the side surface of the core body (1) is fixedly connected with a connecting shell (2) fixedly connected with a first clapboard (11), the side surface of the first clapboard (11) is positioned inside the connecting shell (2) and is fixedly connected with a spring (8), the spring (8) is fixedly connected with a sliding block (3), the inner side wall of the connecting shell (2) and the outer side wall of the air pipe (6) are both connected with the sliding block (3) in a sliding way, the one end fixedly connected with four connecting blocks (61), four of trachea (6) lateral wall relatively fixed plate (12) connecting block (61) lateral wall fixedly connected with and sliding block (3) lateral wall stationary casing (4) that contact.

2. The mandrel for the injection blow molding hollow forming machine according to claim 1, characterized in that a sliding ring (31) is fixedly sleeved at one end of the outer side wall of the sliding block (3) located at the spring (8), and a limiting groove (21) connected with the sliding ring (31) in a sliding manner is formed in the inner side wall of the connecting shell (2).

3. The mandrel for injection blow molding machine according to claim 2, wherein the thickness of the stopper groove (21) is larger than the thickness of the slip ring (31).

4. The mandrel for injection blow molding machine as claimed in claim 1, wherein the length of the spring (8) in the natural state is equal to the distance between the facing surfaces of the first partition plate (11) and the sliding block (3).

5. The mandrel for injection blow molding machine as claimed in claim 1, wherein the diameter of the outer contour circle of the cross section of the gas pipe (6) is smaller than the diameter of the inner contour circle of the cross section of the top end of the oil inlet pipe (7).

6. The mandrel for injection blow molding hollow molding machine according to claim 1, wherein the distance between the fixed plate (12) and the second partition plate (71) is smaller than the length of the core body (1).