CN218966095U

CN218966095U - Mouth core mold for large-caliber thick-wall polyethylene pipe

Info

Publication number: CN218966095U
Application number: CN202223555403.1U
Authority: CN
Inventors: 薄芹; 陈为波; 焦淑鑫
Original assignee: Shandong Boda Pipe Industry Co ltd
Current assignee: Shandong Boda Pipe Industry Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-05
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a mouth core die for a large-caliber thick-wall polyethylene pipe, which relates to the technical field of production of polyethylene pipes and comprises a core die main body, wherein the bottom of the core die main body is movably connected with a size adjusting device, the size adjusting device comprises a separation base, the upper surface of the separation base is fixedly provided with a limiting plate, and the other end of the limiting plate is fixedly connected with a mouth die. According to the utility model, the bottom of the core mould main body is provided with the independent size adjusting device, the size adjusting device is movably connected with the core mould main body, when the size of the core mould needs to be changed, the original core mould main body can be detached, the size adjusting device is directly used, and the original core mould main body is replaced by the size adjusting device through the first template, so that the time for replacing the core mould can be saved, and the problem that the overall production speed is reduced because the pipe production device cannot continue to operate when a new mould is replaced is solved.

Description

Mouth core mold for large-caliber thick-wall polyethylene pipe

Technical Field

The utility model relates to the field of polyethylene pipe production, in particular to a mouth core die for a large-caliber thick-wall polyethylene pipe.

Background

The polyethylene pipe is a pipe made of polyethylene, and the polyethylene is a nonpolar thermoplastic resin with high crystallinity. The original state polyethylene has milky white appearance and a certain degree of semitransparent shape in a micro-thin section. PE has excellent properties of resisting most chemicals for life and industry, and is generally required to be matched with various mouth core moulds for shaping in the process of producing polyethylene pipes.

In the prior art, for example, the Chinese patent number is: CN212707928U "a mouth core mould for large caliber thick wall polyethylene pipe", comprising mouth mould and core mould, the mouth mould is sleeved outside the core mould, the annular runner for running fluid is formed between the inner wall of the mouth mould and the outer wall of the core mould, the inner diameter of the inlet of the annular runner is smaller than the inner diameter of the outlet, and the outer diameter of the inlet of the annular runner is smaller than the outer diameter of the outlet. According to the utility model, the running state of the polyethylene fluid in the mouth core mold is studied deeply, the mouth core mold structure is designed in an ingenious improvement way, the pressurizing problem in the process of increasing the diameter of the pipeline is solved, the large-diameter pipeline can be expanded and processed by using the basic mold with similar specifications, and the equipment investment is greatly reduced while the expansion specifications of products of enterprises are met; the device can effectively reduce the phenomenon of material flow sagging through the flow blocking design of the inner contraction section of the mouth core mold, realizes that the common raw materials meet the production quality requirement under the condition of not using special low-melting-sagging raw materials, and is beneficial to realizing the technical promotion of producing the ultra-large and ultra-thick pipe by the common raw materials.

However, in the prior art, the size and shape of the die are generally fixed, so that when polyethylene pipes with different calibers are processed, a new die needs to be replaced, in the process of replacing the new die, the device for producing the pipe cannot continue to operate, the overall production speed is delayed, a certain time is spent for disassembling and installing the die, and the overall production efficiency is further reduced.

Disclosure of Invention

The utility model aims to solve the problems that the sizes and the shapes of dies are generally fixed in the prior art, so that when polyethylene pipes with different calibers are processed, a new die is required to be replaced, a device for producing the pipes cannot continue to operate in the process of replacing the new die, the overall production speed is delayed, a certain time is spent for disassembling and installing the dies, and the overall production efficiency is further reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the mouth core die for the large-caliber thick-wall polyethylene pipe comprises a core die main body, wherein the bottom of the core die main body is movably connected with a size adjusting device;

the size adjusting device comprises a separation base, a limiting plate is fixedly arranged on the upper surface of the separation base, a neck mold is fixedly connected with the other end of the limiting plate, a first template is movably arranged at the top of the limiting plate, a butt joint slot is formed in the top of the first template, and a guide chute is formed in the joint of the limiting plate and the first template.

Preferably, a second template is lapped on the inner wall of the first template, and an electric sliding block is fixedly connected to the bottom of the second template.

Preferably, the upper surface of the separation base is fixedly provided with a limit guide rail, and the center of the limit guide rail is fixedly provided with a butt joint block.

Preferably, the bottom of the separation base is fixedly connected with the support base table, and a blocking baffle is fixedly arranged at the joint of the limiting plate and the neck mold.

Preferably, a driving motor is fixedly arranged at the top of the support base table, and a wiring terminal of the driving motor is movably connected with a wiring terminal of the electric sliding block.

Preferably, one end of the limiting guide rail is fixedly provided with a main rail, the other end of the limiting guide rail is fixedly provided with an auxiliary rail, and the bottom of the electric sliding block is movably connected to the upper surface of the main rail.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the bottom of the core mould main body is provided with the independent size adjusting device, the size adjusting device is movably connected with the core mould main body, when the size of the core mould needs to be changed, the original core mould main body can be detached, the size adjusting device is directly used, and the original core mould main body is replaced by the size adjusting device through the first template, so that the time for replacing the core mould can be saved, and the problem that the overall production speed is reduced because the pipe production device cannot continue to operate when a new mould is replaced is solved.

2. According to the utility model, the second template is arranged on the inner side of the first template, the first template can move along the direction of the limiting plate, the second template moves along the direction of the limiting guide rail, and when the second template moves onto the auxiliary rail, the second template can be spliced with the first template, so that the size expansion is realized, and the size range of the size adjusting device is further expanded.

Drawings

Fig. 1 is a schematic perspective view of a mandrel for a large-caliber thick-wall polyethylene pipe according to the present utility model;

FIG. 2 is a schematic diagram showing a structure of a device for adjusting the dimensions of a large-caliber thick-wall polyethylene pipe according to the present utility model;

FIG. 3 is a schematic diagram showing a connection structure between a second die plate and a limiting guide rail of a mouth core die for a large-caliber thick-wall polyethylene pipe;

fig. 4 is a plan view of a core die for a large-caliber thick-wall polyethylene pipe according to the present utility model.

Legend description:

1. a core mold main body; 2. a die; 3. supporting the base table; 4. a size adjustment device;

41. a partition base; 42. plugging baffles; 43. a limiting plate; 44. a guide chute; 45. a first template; 46. a butt joint slot; 47. a second template; 48. a butt joint block; 49. a spacing guide rail; 410. an electric slide block; 411. a driving motor; 412. a main track; 413. and a secondary track.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

The embodiment 1, as shown in fig. 1, 2 and 3, provides a mouth core mold for a large-caliber thick-wall polyethylene pipe, which comprises a core mold main body 1, wherein the bottom of the core mold main body 1 is movably connected with a size adjusting device 4, the size adjusting device 4 comprises a separation base 41, the upper surface of the separation base 41 is fixedly provided with a limiting plate 43, the other end of the limiting plate 43 is fixedly connected with a mouth mold 2, the top of the limiting plate 43 is movably provided with a first template 45, the top of the first template 45 is provided with a butt joint slot 46, the joint of the limiting plate 43 and the first template 45 is provided with a guide chute 44, the inner wall of the first template 45 is lapped with a second template 47, and the bottom of the second template 47 is fixedly connected with an electric sliding block 410.

The specific arrangement and function of the present embodiment will be specifically described below: the mandrel main body 1 is directly installed on the size adjusting device 4, the mandrel main body 1 is directly inserted into the butt joint slot 46 on the first template 45, the mandrel main body 1 is mainly used for shaping the inner wall of a polyethylene pipe in the use process, when the mandrel with the other caliber needs to be replaced, the mandrel main body 1 can be directly detached from the first template 45, the first template 45 is utilized to replace the original mandrel main body 1, the caliber of the first template 45 is smaller than that of the original mandrel main body 1, when the size of the size adjusting device 4 needs to be enlarged, the first template 45 is pushed to move along the direction of the guide chute 44 on the limiting plate 43, so that the position of the first template 45 is changed, in the process, the electric sliding block 410 is simultaneously started, the second template 47 is pushed to move along the direction of the limiting guide rail 49 until the second template 47 and the first template 45 are spliced together, and a mandrel with larger caliber is formed for use, the mode is utilized to replace the original mandrel main body 1 by the first template 45 and the second template 45, the whole production speed of the mandrel is saved, and the problem of lowering the production speed of the die is avoided.

In embodiment 2, as shown in fig. 2, 3 and 4, a limit rail 49 is fixedly mounted on the upper surface of the partition base 41, a butt joint block 48 is fixedly mounted at the center of the limit rail 49, the bottom of the partition base 41 is fixedly connected with the support base table 3, a blocking baffle 42 is fixedly mounted at the joint of the limit plate 43 and the mouth mold 2, a driving motor 411 is fixedly mounted at the top of the support base table 3, a terminal of the driving motor 411 is movably connected with a terminal of the electric slider 410, a main rail 412 is fixedly mounted at one end of the limit rail 49, a sub rail 413 is fixedly mounted at the other end of the limit rail 49, and the bottom of the electric slider 410 is movably connected with the upper surface of the main rail 412.

The whole embodiment achieves the effects that the partition base 41 is installed on the support base table 3, the driving motor 411 at the center is installed at the center of the two limit rails 49 through the butt joint blocks 48, the limit rails 49 distinguish the positions of the first template 45 and the second template 47 through the main rail 412 and the auxiliary rail 413, the main rail 412 is started to determine the initial positions of the two templates, the auxiliary rail 413 is started to determine the final positions of the two templates, when the first template 45 is pushed to move, the first template 45 stops moving when moving to the position of the blocking baffle 42, the electric sliding block 410 is driven by the driving motor 411, the second template 47 is pushed to the auxiliary rail 413 along the direction of the limit rails 49 to finish butt joint with the first template 45, and therefore size expansion is achieved, and the size range of the size adjusting device 4 is further expanded.

The application method and the working principle of the device are as follows: when the mandrel is used, the mandrel main body 1 is inserted into the butt joint slot 46 on the first template 45, the mandrel main body 1 is mainly used for shaping the inner wall of a polyethylene pipe, the die orifice 2 is positioned at the edge of the separation base 41 and used for shaping the outer wall of the polyethylene pipe, when the mandrel with the other caliber needs to be replaced, the mandrel main body 1 can be directly detached from the first template 45, the first template 45 is utilized to replace the original mandrel main body 1, the caliber of the first template 45 is smaller than that of the original mandrel main body 1, when the size of the size adjusting device 4 needs to be enlarged, the first template 45 is pushed to move along the direction of the guide chute 44 on the limiting plate 43, so that the position of the first template 45 is changed, the limiting guide rail 49 can distinguish the positions of the first template 45 and the second template 47 through the main rail 412 and the auxiliary rail 413, in the process of pushing the first template 45 to move to the position of the blocking baffle 42, the electric sliding block 410 is driven by the driving motor 411, the second template 47 is pushed to the auxiliary rail 413 along the direction of the limiting guide rail 49 to the second template 45 to the position of the first template 45, the whole is formed to be more difficult than the first template 45, and the first template 45 is replaced, and the mandrel is replaced by the whole die template is produced, and the whole die is more difficult to be replaced, and the die is more difficult to replace the whole die 45, and the die is more difficult to be convenient to use.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. A mouthful mandrel for heavy-calibre thick wall polyethylene pipe, its characterized in that: the device comprises a core mould main body (1), wherein the bottom of the core mould main body (1) is movably connected with a size adjusting device (4);

the size adjusting device (4) comprises a separation base (41), a limiting plate (43) is fixedly arranged on the upper surface of the separation base (41), a die (2) is fixedly connected to the other end of the limiting plate (43), a first template (45) is movably arranged at the top of the limiting plate (43), a butt joint slot (46) is formed in the top of the first template (45), and a guide chute (44) is formed in the joint of the limiting plate (43) and the first template (45).

2. The mouth core die for a large-caliber thick-wall polyethylene pipe according to claim 1, wherein: the inner wall of the first template (45) is lapped with a second template (47), and the bottom of the second template (47) is fixedly connected with an electric sliding block (410).

3. The mouth core die for a large-caliber thick-wall polyethylene pipe according to claim 2, wherein: the upper surface of the separation base (41) is fixedly provided with a limit guide rail (49), and the center of the limit guide rail (49) is fixedly provided with a butt joint block (48).

4. The mouth core die for a large-caliber thick-wall polyethylene pipe according to claim 1, wherein: the bottom of the separation base (41) is fixedly connected with the support base table (3), and a blocking baffle (42) is fixedly arranged at the joint of the limiting plate (43) and the neck ring mold (2).

5. The mouth core mold for a large-caliber thick-wall polyethylene pipe according to claim 4, wherein: the top of the support base table (3) is fixedly provided with a driving motor (411), and a wiring terminal of the driving motor (411) is movably connected with a wiring terminal of the electric sliding block (410).

6. A mouth core die for a heavy caliber thick wall polyethylene pipe according to claim 3, wherein: one end of the limiting guide rail (49) is fixedly provided with a main rail (412), the other end of the limiting guide rail (49) is fixedly provided with an auxiliary rail (413), and the bottom of the electric slider (410) is movably connected to the upper surface of the main rail (412).