CN214188363U

CN214188363U - Extrusion die head with quick adjusting mechanism

Info

Publication number: CN214188363U
Application number: CN202023238210.4U
Authority: CN
Inventors: 盛振华
Original assignee: Hunan Huaerte Technology Co ltd
Current assignee: Hunan Huaerte Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-14
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a take quick adjustment mechanism's extrusion die. Including extruding die body, plug, unloading cover, plug cover, going up gland and bush, wherein: the top end of the core rod is provided with an adjusting nut for adjusting the distance between the bottom end of the core rod and the bottom end of the neck ring mold, and the upper gland is provided with an adjusting component for adjusting the size of the gap between the upper gland and the top surface of the core rod sleeve; the outer wall of the mandrel sleeve is provided with an annular flow passage B, the annular flow passage B is communicated with a main flow passage A on the extrusion die body and a gap flow passage C formed by the bottom surface of the upper gland and the top end of the mandrel sleeve, and the outer walls of the lower part of the blanking sleeve and the mandrel and the inner walls of the mandrel sleeve and the neck ring form an extrusion flow passage. The utility model adjusts the size of the flow channel through the adjusting component, thereby controlling the flow speed and flow of the melt; the sizes of the cross sections of the bottom end of the core rod and the bottom end of the neck ring mold are adjusted through the adjusting nut, and then the thickness of the extruded melt finished product is controlled. The adjusting structure is convenient and fast, the extrusion speed and thickness of the melt can be effectively controlled, and the production quality and efficiency are ensured.

Description

Extrusion die head with quick adjusting mechanism

Technical Field

The utility model relates to a blow embedment all-in-one, indicate an extrusion die who is used for blowing quick adjustment mechanism of taking of embedment all-in-one very much.

Background

With the vigorous development of pharmaceutical machinery in China, the application range of the blowing, filling and sealing integrated machine is expanded, and the requirement on the extrusion molding technology is higher. In the whole extrusion molding process, the plasticizing process of plastics in an extrusion main machine, the process of extruding molten materials into an extrusion die and the design of an extruder head are the most critical. The extrusion die is also called an extruder head, and the plastic becomes molten after passing through the screw and the charging barrel, then is further plasticized into uniform melt through the extruder head, and is molded into a required product shape through the extruder head. In the overall structure of the extruder, the speed and thickness adjustment during melt extrusion is inconvenient. The flow rate of the rubber material is not uniform, the walking routes of the rubber mass entering the machine head are different, and the pressure difference between the two sides easily causes the mold core to deviate.

Disclosure of Invention

The utility model aims at improving and innovating the defects and the problems existing in the background art, and provides an extrusion die head with a quick adjusting mechanism.

The technical scheme of the utility model be construct an extrusion die head, including extruding the die body, set up the plug in extruding the die body, the clearance suit is established at the outer unloading cover of plug, and the cover is established at the outer plug cover of unloading cover, fixes on extruding the die body and the last gland that bottom surface and plug cover top surface clearance correspond with setting up the bush of locating the plug lower part at plug cover bottom and cover, wherein: the top end of the core rod is provided with an adjusting nut for adjusting the distance between the bottom end of the core rod and the bottom end of the neck ring mold, and the upper gland is provided with an adjusting component for adjusting the size of the gap between the upper gland and the top surface of the core rod sleeve; the outer wall of the core rod sleeve is provided with an annular flow passage B, the annular flow passage B is communicated with a main flow passage A on the extrusion die body and a gap flow passage C formed by the bottom surface of the upper gland and the top end of the core rod sleeve, and the outer walls of the lower part of the blanking sleeve and the core rod and the inner walls of the core rod sleeve and the neck die form an extrusion flow passage.

In one embodiment, the outer wall of the neck ring mold is provided with a plurality of adjusting screws II for adjusting the distance between the inner wall of the neck ring mold and the core rod, and each adjusting screw II is fixed on the extrusion mold body through a lower pressing plate. The distance between the neck ring mold and the core rod is adjusted through the adjusting screw rod II, so that the problem of uneven extrusion of the melt can be solved by adjusting the positions, the problem of offset of the core rod is solved, the uniform extrusion of the melt is ensured, and the production quality and efficiency are further improved.

Preferably, the outer wall of the blanking sleeve is provided with at least two stepped surfaces, and the stepped surfaces are matched with the inner wall of the core rod sleeve to form a stepped flow channel D. The extrusion flow channel is changed into a stepped flow channel through the stepped surface, so that the flow of the melt can be well promoted.

Preferably, the adjusting component comprises a fixed block fixed at the top end of the blanking sleeve and a first adjusting screw rod arranged on the fixed block and connected with the upper gland. The upper position and the lower position of the blanking sleeve are adjusted through the adjusting screw rod I, and then the flow of the melt is adjusted.

Preferably, the top end of the core rod sleeve is arranged to be an arc-shaped surface, and the shape of the bottom surface of the upper gland is matched with that of the arc-shaped surface. The design of the arc-shaped surface enables the melt of the gap runner to pass more smoothly, no runner dead angle is generated, and smooth and orderly extrusion of the melt is ensured.

Preferably, the blanking sleeve is of a cylindrical structure, a positioning pin is arranged on the wall of the cylinder, and the positioning pin is connected with the mandrel sleeve and supports the blanking sleeve to slide up and down in a limited range to adjust the flow channel. The locating pin is used for assembling the blanking sleeve and the core rod sleeve, and limits the adjusting range of the flow channel, so that the adjustment is more stable.

Preferably, a heating plate is arranged on the extrusion die body. The heating plate on the die body is used for heating or insulating the melt in the runner, so that the melt can effectively flow in the runner, and the blockage or condensation is avoided.

The utility model has the advantages and beneficial effect:

the utility model discloses a mandrel cover with extrude the die body, go up gland, unloading cover, die orifice and the cooperation of plug, form sprue, annular runner, the clearance runner that link up in proper order and extrude the runner, make orderly the extrusion from the bush of fuse-element ability. Meanwhile, the size of the flow channel is adjusted through the arranged adjusting assembly, so that the flow speed and the flow quantity of the melt are controlled; the sizes of the cross sections of the bottom end of the core rod and the bottom end of the neck ring mold are adjusted through the adjusting nut, and then the thickness of the extruded melt finished product is controlled. The utility model discloses it is convenient, swift to adjust the structure, and the speed and the thickness that can the effective control fuse-element be extruded have guaranteed production quality and efficiency.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Fig. 2 is a schematic view illustrating the increase of the flow rate of the melt in the first adjustment of the adjusting screw of the present invention.

Fig. 3 is a schematic view of the adjusting screw rod of the present invention for reducing the flow of the melt.

Fig. 4 is a schematic view of the adjusting nut for adjusting the thin melt product with the cross section of the extrusion outlet becoming smaller.

Fig. 5 is a schematic view of the adjusting nut for adjusting the cross section of the extrusion opening to be enlarged to obtain a thick melt product.

Fig. 6 is a schematic view showing the uneven cross sections of the adjusting screw second adjusting die and the core rod of the present invention.

Description of the figures:

1. adjusting nuts, 2, fixing blocks, 3, adjusting screws I and II, 4, mandrel sleeves, 5, blanking sleeves, 6, mandrels, 7, lower pressing plates, 8, adjusting screws II and II, 9, mouth molds, 10, heating plates, 11, extrusion mold bodies, 12, upper pressing covers, 13 and positioning pins.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 6, the extrusion die head with the quick adjustment mechanism includes an extrusion die body 11, a core rod 6 disposed in the extrusion die body 11, a blanking sleeve 5 disposed outside the core rod 6 with a gap therebetween, a core rod sleeve 4 disposed outside the blanking sleeve 5, an upper gland 12 fixed on the extrusion die body 11 and having a bottom surface corresponding to the top surface of the core rod sleeve 5 with a gap therebetween, and a die 9 disposed at the bottom end of the core rod sleeve 5 and sleeved on the lower portion of the core rod 6. Wherein: the top end of the core rod 6 is provided with an adjusting nut 1 for adjusting the distance between the bottom end of the core rod 6 and the bottom end of the neck ring mold 9. An adjusting component for adjusting the gap between the upper gland 12 and the top surface of the mandrel sleeve 4 is arranged on the upper gland 12, and the adjusting component comprises a fixed block 2 fixed at the top end of the blanking sleeve 5 and an adjusting screw rod I3 arranged on the fixed block 2 and connected with the upper gland 12. The outer wall of the core rod sleeve 4 is provided with an annular flow passage B, the annular flow passage B is communicated with a main flow passage A on the extrusion die body 11 and a gap flow passage C formed by the bottom surface of an upper gland 12 and the top end of the core rod sleeve 4, and the outer walls of the lower parts of the blanking sleeve 5 and the core rod 6 and the inner walls of the core rod sleeve 4 and the neck ring 9 form an extrusion flow passage. The outer wall of the neck ring mold 9 is provided with a plurality of adjusting screws 8 for adjusting the distance between the inner wall of the neck ring mold 9 and the core rod 6, the number of the adjusting screws 8 is three in the embodiment, and each adjusting screw 8 is fixed on the extrusion mold body 11 through the lower pressing plate 7.

Specifically, the outer wall of the blanking sleeve 5 is provided with at least two stepped surfaces, in this example, the two stepped surfaces are arranged, and the stepped surfaces are matched with the inner wall of the core rod sleeve 4 to form a stepped flow channel D. The top end of the mandrel sleeve 4 is set to be an arc-shaped surface, and the shape of the bottom surface of the upper gland 12 is matched with the arc-shaped surface. The blanking sleeve 5 is of a cylindrical structure, a positioning pin 13 is arranged on the wall of the cylinder, and the positioning pin 13 is connected with the mandrel sleeve 4 and supports the blanking sleeve 5 to slide up and down in a limited range to adjust the flow channel. The extrusion die body 11 is also provided with a heating plate 10.

The utility model discloses structure and theory of operation:

the extrusion die head comprises a mouth die 9, a blanking sleeve 5 and a core rod 6. The neck ring mold 9 and the core rod 6 are fixedly connected through a blanking sleeve 5; the blanking sleeve 5 is of a cylindrical structure, the outer circle of the cylinder is provided with 4 positioning pins 13 for supporting and keeping a fixed section with the core rod sleeve 4, and the blanking sleeve can slide up and down when a melt is adjusted; the blanking sleeve 5 is in clearance fit with the core rod 6, and the core rod 6 can move freely during adjustment. The outer peripheral surface of the side wall of the blanking sleeve 5 connected with the core rod sleeve 4 is provided with a double-layer stepped surface, when a melt enters the extrusion head through the main runner A, the melt is uniformly distributed around the core rod sleeve 4 through the annular runner B of the core rod sleeve 4, and when the annular runner is fully distributed with the melt, the melt enters the stepped runner D of the blanking sleeve 5 through the gap runner C at the upper part of the core rod sleeve 4, as shown in figure 1. The stepped flow channel can change the flow channel section through the adjusting screw rod I3 to realize the quick adjustment of the flow speed of the melt; as shown in fig. 2, when the feeding sleeve 5 rotates clockwise, the section of the stepped runner becomes larger, that is, the melt flow becomes larger; as shown in FIG. 3, when the rotary cutter rotates counterclockwise, the blanking sleeve 5 rises, and the cross section of the stepped runner becomes smaller, that is, the melt flow rate becomes smaller. The thickness of the melt can be adjusted by rotating the adjusting nut 1 at the top of the core rod 6 to move the core rod 6 up and down to change the sections of the bottom of the core rod 6 and the mouth mold 9; as shown in fig. 4, when the mandrel bar 6 rotates counterclockwise, the cross section becomes smaller and the finished product becomes thinner; as shown in fig. 5, when the mandrel 6 is rotated clockwise, the cross section becomes larger and the thickness of the product becomes thicker. Of course, when the thickness of the finished product is uneven, the cross sections of the die 9 and the core rod 6 can be changed by screwing the adjusting screws 8 distributed in the corresponding directions, as shown in fig. 6.

The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.

Claims

1. The utility model provides a take quick adjustment mechanism's extrusion die head, its characterized in that is including extruding the die body, sets up the plug in extrusion die body, and the unloading cover of clearance suit outside the plug is established to the cover, establishes the plug cover outside the unloading cover, fixes on extruding the die body and the last gland that bottom surface and plug cover top surface clearance correspond with the setting locate the bush of plug lower part at plug cover bottom and cover, wherein:

the top end of the core rod is provided with an adjusting nut for adjusting the distance between the bottom end of the core rod and the bottom end of the neck ring mold, and the upper gland is provided with an adjusting component for adjusting the size of the gap between the upper gland and the top surface of the core rod sleeve;

the outer wall of the core rod sleeve is provided with an annular flow passage B, the annular flow passage B is communicated with a main flow passage A on the extrusion die body and a gap flow passage C formed by the bottom surface of the upper gland and the top end of the core rod sleeve, and the outer walls of the lower part of the blanking sleeve and the core rod and the inner walls of the core rod sleeve and the neck die form an extrusion flow passage.

2. The extrusion die head with the rapid adjusting mechanism according to claim 1, wherein the outer wall of the die is provided with a second adjusting screw rod for adjusting the distance between the inner wall of the die and the core rod, the second adjusting screw rods are provided in plurality, and each second adjusting screw rod is fixed on the extrusion die body through the lower pressing plate.

3. The extrusion die head with the rapid adjusting mechanism according to claim 1 or 2, characterized in that the outer wall of the blanking sleeve is provided with at least two stepped surfaces, and the stepped surfaces are matched with the inner wall of the core rod sleeve to form a stepped flow channel D.

4. The extrusion die head with the quick adjusting mechanism according to claim 1 or 2, characterized in that the adjusting assembly comprises a fixed block fixed at the top end of the blanking sleeve and a first adjusting screw rod arranged on the fixed block and connected with the upper gland.

5. The extrusion die head with the quick adjusting mechanism according to claim 1 or 2, characterized in that the top end of the core rod sleeve is provided with an arc-shaped surface, and the bottom surface of the upper gland is adapted to the arc-shaped surface in shape.

6. The extrusion die head with the rapid adjusting mechanism according to claim 1 or 2, characterized in that the blanking sleeve is of a cylindrical structure, a positioning pin is arranged on the cylindrical wall, and the positioning pin is connected with the mandrel sleeve and supports the blanking sleeve to slide up and down in a limited range to adjust the flow channel.

7. The extrusion die head with the quick adjusting mechanism according to claim 1 or 2, characterized in that the extrusion die body is provided with a heating plate.