CN218196808U

CN218196808U - Plastic rod production shaping temperature control device

Info

Publication number: CN218196808U
Application number: CN202222120615.0U
Authority: CN
Inventors: 姜凯; 周郑彬; 邓凯; 温喜全; 王全兵; 曹慧
Original assignee: Jiangxi Tongyi Polymer Material Technology Co ltd
Current assignee: Jiangxi Tongyi Polymer Material Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-03
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a plastic rod production shaping temperature control device, extrude the profiled tube including the rod, the intraductal rod that is equipped with of rod extrusion profiled tube extrudes the passageway, the threaded groove is opened in the rod extrusion profiled tube outside, the laminating is equipped with the thin wall copper pipe in the threaded groove. One or more sections of thin-wall copper pipes are attached in the thread groove, and heating rings corresponding to the number of the thin-wall copper pipes are arranged outside the bar extrusion molding pipe; in the process of extruding the plastic bar, the multistage and step-shaped temperature control is realized, and the quality and the yield of the plastic bar are favorably improved. And the specific quantity can be determined according to the process temperature step number and the length of the bar extrusion molding pipe, so that the temperature of the bar extrusion molding pipe can be accurately controlled within a certain range, and the yield of products is further improved. The heating ring is adopted for heating, so that the heating ring is in direct contact with the bar extrusion molding pipe, the heat conduction efficiency is obviously improved, and the problem that the liquid heat supply temperature is attenuated and increased along with the increase of the length of the pipeline is solved.

Description

Plastic rod production forming temperature control device

Technical Field

The utility model relates to a plastic rod forming device especially relates to a plastic rod production shaping temperature control device.

Background

With the national proposal of 'plastic to steel policy', the market development of various general plastics, engineering plastics and special engineering plastics is gradually increased. In order to meet the market demand, the Chinese people design cold-pushing bar molds by themselves, and push the development of cold-pushing plastic bars in the environment of hardy, tall and impatient and courage.

The plastic bars are of various types, such as HDPE bars and PE bars which are commonly used for manufacturing food machinery part blanks and anticorrosion equipment parts; the PA rod is suitable for manufacturing gear and part blanks of chemical machinery and anticorrosive equipment; PP bars and polypropylene PP bars with excellent creep resistance, stress relaxation resistance, wear resistance and fatigue resistance; ultra high molecular weight polyethylene rods with wear resistance over plastic, and the like.

At present, the general structure of the forming part of the cold-pushing plastic bar is shown in fig. 1, a threaded temperature control channel 23 is formed on the outer side surface of a bar extrusion forming pipe 2, a water jacket 5 is sleeved outside the bar extrusion forming pipe 2, so that the threaded temperature control channel 23 is closed, and liquid inlet and outlet joints 6 penetrating through the water jacket 5 are arranged at two ends of the threaded temperature control channel 23, so that liquid can enter from one of the two liquid inlet and outlet joints 6 and flow out from the other liquid inlet and outlet joint 6 after flowing through the threaded temperature control channel 23, a cycle is formed, and temperature control is performed on the bar extrusion forming pipe 2. The liquid temperature is controlled and is conveyed into a cavity formed by the thread temperature control channel 23 and the water jacket 5 to adjust the molding temperature; the liquid serves to provide heat and control temperature during this process. The liquid may be water or oil.

However, in the whole process of controlling the production and forming temperature of the plastic bar, (1) the bar extrusion forming pipe can only be set at one temperature, and multi-section stepped cooling cannot be realized; (2) Liquid such as water or oil is directly contacted with the thread temperature control channel 23 and the water jacket 5, and the bar material has certain temperature in the extrusion process, so the bar material is easy to rust; a cavity formed by the water jacket 5 and the thread temperature control channel 23 is easy to block, so that a plastic product is not uniform in molding temperature and generates a defective product, and the water jacket 5 is easy to age at a certain temperature, so that liquid leakage is caused; (3) The heat conduction of the thread temperature control channel 23 is controlled by liquid with a certain temperature, so that the heat conduction efficiency is not high; after the arranged liquid is conveyed to an internal cavity formed by the threaded temperature control channel 23 and the water jacket 5, the temperature of the liquid is attenuated and increased along with the increase of the length of the pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of the prior art, the utility model provides a can realize the cooling of multistage, notch cuttype, the liquid circuit does not rust, not block up, does not reveal, and the plastic rod production shaping temperature control device that heat-conduction efficiency is high and the yields is high.

In order to solve the technical problem, the utility model provides such plastic rod production shaping temperature control device, extrude the profiled tube including the rod, the intraductal rod that is equipped with of rod extrusion profiled tube extrudes the passageway, the threaded groove is opened in the rod extrusion profiled tube outside, the laminating is equipped with thin wall copper pipe in the threaded groove.

Preferably, one or more sections of thin-wall copper pipes are attached to the thread groove. The specific quantity can be determined according to the process temperature step number and the length of the bar extrusion molding pipe, the temperature of the bar extrusion molding pipe can be accurately controlled within a certain range, and the improvement of the yield of products is facilitated.

The cross section of the thin-wall copper pipe can be square, triangular, circular and the like, in order to facilitate processing and clinging to the thread groove, the cross section of the preferable thin-wall copper pipe is circular and corresponds to the thread groove, one side of the thread groove, which is close to the bar extrusion channel, is semicircular, and the radius of the outer side surface of the thin-wall copper pipe is consistent with that of the semicircular part of the bar extrusion channel, so that the clinging area of the thin-wall copper pipe and the thread groove can be increased, and the heat conduction efficiency is increased.

Optionally, a heating ring is arranged outside the bar extrusion molding pipe, and two ends of the thin-wall copper pipe penetrate out of the heating ring. The heating ring can be in direct contact with the bar extrusion molding pipe, and the heat conduction efficiency is high.

The number of the heating rings is preferably corresponding to the number of the thin-wall copper tubes, and each heating ring is at a corresponding position to heat the winding section of the thin-wall copper tube, so that multi-section and step-type temperature control can be realized according to process requirements. The liquid flowing in the thin-wall copper pipe has the function of keeping the temperature of the section of bar extrusion molding pipe within a certain range, and avoiding overhigh or overlow temperature.

Preferably, the two ends of the thin-wall copper pipe are connected with taper high-pressure pipe joints, so that the thin-wall copper pipe is convenient to install and connect.

Preferably, the heating ring is a stainless steel heating ring, and the heat conduction efficiency is high.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) One or more sections of thin-wall copper pipes are attached in the thread groove, and heating rings corresponding to the number of the thin-wall copper pipes are arranged outside the bar extrusion molding pipe; in the process of extruding the plastic bar, the multistage and step-shaped temperature control is realized, and the quality and the yield of the plastic bar are favorably improved. And the specific quantity can be determined according to the process temperature step number and the length of the bar extrusion molding pipe, so that the temperature of the bar extrusion molding pipe can be accurately controlled within a certain range, and the yield of products is further improved.

(2) The thin-wall copper pipe is used as a liquid backflow channel, and the copper is higher in stability than steel, so that the copper pipe is not easy to rust and block, and the yield is improved; compared with the mode of forming a liquid flowing cavity by sealing the water jacket, the thin-wall copper pipe has the advantages that the service life is obviously longer than that of the water jacket, the problem of aging and leakage basically does not occur, and the maintenance is convenient. Even if the damage exists, the damaged section can be replaced according to the section with the problem, and the whole replacement is not needed.

(3) Adopt the heating coil heating, make it extrude into the pipe direct contact with the rod, heat conduction efficiency obviously improves, and the temperature can be along with the length growth of pipeline and the problem of decay increase when having avoided adopting liquid heat supply, further guarantees the quality and the yield of plastic rod.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of the prior art in the background of the present invention;

fig. 2 is a schematic perspective view of embodiment 2 of the present invention;

fig. 3 is a schematic sectional structure diagram of embodiment 2 of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3 according to the present invention;

fig. 5 is a schematic perspective view of embodiment 1 of the present invention;

FIG. 6 is a schematic view of the three-dimensional structure of the thin-walled copper tube of the present invention;

fig. 7 is a schematic view of the three-dimensional structure of the rod extrusion molding tube of the present invention.

The symbols in the drawings are: 1-heating ring, 2-bar extrusion molding tube, 3-thin-wall copper tube, 4-taper high-pressure tube joint, 21-thread groove, 22-bar extrusion channel, 31-liquid channel, 5-water jacket, 6-liquid inlet and outlet joint, and 23-thread temperature control channel.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following description is made for the technical solution of the present invention in the embodiments to explain the present invention clearly and completely, obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.

Example 1

As shown in fig. 5-7, a temperature control device for plastic bar production and molding comprises a bar extrusion molding pipe 2, a bar extrusion channel 22 is arranged in the bar extrusion molding pipe 2, a thread groove 21 is formed in the outer side of the bar extrusion molding pipe 2, and a thin-wall copper pipe 3 is arranged in the thread groove 21 in a fitting manner.

In the present embodiment, three sections of thin-walled copper tubes 3 are attached to the inside of the thread groove 21; the thin-wall copper pipe 3 is circular in cross section, and the side of the thread groove 21 close to the bar extrusion channel 22 is semicircular, and the radiuses of the thread groove and the bar extrusion channel are consistent, so that the thin-wall copper pipe 3 is fully attached to the thread groove 21, and the heat conduction efficiency is improved.

The two ends of the thin-wall copper pipe 3 are connected with the taper high-pressure pipe joints 4, so that the connection is convenient, liquid can enter the thin-wall copper pipe 3 conveniently, and the thin-wall copper pipe 3 can be effectively prevented from being blocked.

In the specific embodiment, the temperature of each section of the thin-wall copper pipe 3 can be independently set, so that multi-section and step-type temperature control is realized; copper stability is higher than steel, is difficult for rustting just can not cause the jam, and the yields will improve.

Example 2

In the specific embodiment, a stainless steel heating ring is added on the basis of the embodiment 1.

As shown in fig. 2-7, a temperature control device for plastic bar production and molding comprises a bar extrusion molding pipe 2, a bar extrusion channel 22 is arranged in the bar extrusion molding pipe 2, a thread groove 21 is formed in the outer side of the bar extrusion molding pipe 2, and a thin-wall copper pipe 3 is arranged in the thread groove 21 in a fitting manner.

In the present embodiment, three sections of thin-walled copper tubes 3 are attached to the inside of the thread groove 21; the section of the thin-wall copper pipe 3 is circular, and the side of the thread groove 21 close to the bar extrusion channel 22 is semicircular, and the radiuses of the thread groove and the bar extrusion channel are consistent.

Three heating rings 1 are arranged outside the bar extrusion molding pipe 2, the positions of the three heating rings correspond to three thin-wall copper pipes 3, and two ends of each thin-wall copper pipe 3 penetrate through the heating rings 1 and are connected with a taper high-pressure pipe joint 4; in the present embodiment, the heating ring 1 is a stainless steel heating ring.

The during operation, three generate heat and encircle 1 and the contact of rod extrusion forming pipe 2, compare heat conduction efficiency with former mode and obviously improve, utilize the water to walk unnecessary heat in thin wall copper pipe 3's the liquid channel 31, keep rod extrusion forming pipe 2 temperature at certain extent, and simultaneously, owing to be provided with three-section generate heat and encircle 1 and thin wall copper pipe 3 respectively, so every section all can set up a temperature alone, can realize three-section notch cuttype temperature area, be favorable to the pertinence carry out the cold push forming of accurate temperature to the plastic product, thereby do benefit to and promote product yield. And can set up a plurality of sections according to rod extrusion moulding pipe 2 length and generate heat circle 1 and thin wall copper pipe 3 to guarantee that the temperature can not attenuate the increase along with the length growth of pipeline, further guarantee product quality and yield. Compared with the mode of forming a liquid flowing cavity by sealing the water jacket 5, the thin-wall copper tube 3 has the advantages that the service life is obviously longer, the problem of aging and leakage is avoided, the maintenance is convenient, and even if the thin-wall copper tube is damaged, the thin-wall copper tube can be replaced for a section with a problem without whole replacement.

Having thus described the principal technical features and basic principles of the invention, and the advantages thereof, it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description describes embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.

Claims

1. The utility model provides a plastic rod production shaping temperature control device, extrudes forming tube (2) including the rod, the rod is extruded and is equipped with the rod in forming tube (2) and extrudes passageway (22), its characterized in that, threaded groove (21) are opened in the rod extrusion forming tube (2) outside, the laminating is equipped with thin wall copper pipe (3) in threaded groove (21).

2. The plastic bar production and molding temperature control device according to claim 1, wherein one or more sections of thin-walled copper tubes (3) are attached to the inside of the thread groove (21).

3. The temperature control device for plastic bar production and molding according to claim 2, wherein the cross section of the thin-walled copper tube (3) is circular, and the side of the thread groove (21) close to the bar extrusion channel (22) is semicircular.

4. The plastic bar production and molding temperature control device according to claim 3, wherein the radius of the outer side surface of the thin-walled copper tube (3) is consistent with the radius of the semicircular part of the bar extrusion channel (22).

5. The plastic bar production and molding temperature control device according to claim 4, wherein a heating ring (1) is arranged outside the bar extrusion molding pipe (2), and two ends of the thin-walled copper pipe (3) penetrate out of the heating ring (1).

6. The plastic bar production molding temperature control device according to claim 5, wherein the number of the heating rings (1) corresponds to the number of the thin-walled copper tubes (3), and each heating ring (1) heats the winding section of the thin-walled copper tube (3) at the corresponding position.

7. The plastic bar production and molding temperature control device according to claim 6, wherein two ends of the thin-walled copper tube (3) are connected with tapered high-pressure tube joints (4).

8. The plastic bar production and molding temperature control device according to claim 7, wherein the heating ring (1) is a stainless steel heating ring.