阅读说明：本技术 一种聚乙烯导流管吹塑模具 (Polyethylene honeycomb duct blow molding die ) 是由 徐文成 李荣清 代伟 赵波 于 2020-07-15 设计创作，主要内容包括：本发明提供一种聚乙烯导流管吹塑模具,属于模具设备技术领域,以解决现有的聚乙烯导流管吹塑模具中,模具安装过程复杂,不方便维修和更换,而且所吹塑的聚乙烯导流管长度不易调整,难以满足生产需求的问题,包括底板,所述底板顶部前端焊接有固定板。本发明中由于两处固定柱均焊接有螺纹杆,且两处螺纹杆呈对称的方式分布,螺纹杆之间设有框架,且框架与螺纹杆滑动连接,框架前后两端均设有锁紧螺母,且锁紧螺母均与螺纹杆和框架转动连接,转动锁紧螺母,通过螺纹杆推动挡板向后滑动,使前段模具和后段模具之间的空间增大,从而增加中段模具的数量,能够调节模具本体的长度,使吹塑出的聚乙烯导流管满足生产需要。(The invention provides a polyethylene guide pipe blow molding mold, belongs to the technical field of mold equipment, and aims to solve the problems that in the existing polyethylene guide pipe blow molding mold, the mold installation process is complex, the maintenance and the replacement are inconvenient, the length of a blown polyethylene guide pipe is not easy to adjust, and the production requirement is difficult to meet. According to the invention, the threaded rods are welded on the two fixed columns, the two threaded rods are symmetrically distributed, the frame is arranged between the threaded rods and is in sliding connection with the threaded rods, the locking nuts are arranged at the front end and the rear end of the frame and are in rotating connection with the threaded rods and the frame, the locking nuts are rotated, the threaded rods push the baffle plates to slide backwards, so that the space between the front section die and the rear section die is increased, the number of middle section dies is increased, the length of the die body can be adjusted, and the blown polyethylene guide pipe meets the production requirement.)

1. The utility model provides a polyethylene honeycomb duct blowing mould which characterized in that: the device comprises a bottom plate (1), wherein a fixing plate (6) is welded at the front end of the top of the bottom plate (1); the top of the bottom plate (1) is provided with a die body (2), and the die body (2) is arranged at the rear end of the fixing plate (6); the rear end of the top of the bottom plate (1) is provided with a baffle (4), and the baffle (4) is arranged at the rear end of the die body (2); a locking mechanism (3) is arranged on the left side of the die body (2); a stretching mechanism (5) is arranged on the right side of the die body (2); the die body (2) comprises a front section die (201), a middle section die (202) and a rear section die (203), the front section die (201) is fixedly connected with the bottom plate (1) through screws, the rear section die (203) is fixedly connected with the baffle (4) through screws, and the middle section die (202) is slidably connected with the front section die (201) and the rear section die (203).

2. The polyethylene draft tube blow molding die of claim 1, wherein: the bottom plate (1) comprises a slide way (101), the bottom plate (1) is of a cuboid structure, the slide way (101) is arranged in the middle of the top end surface of the bottom plate (1), and the slide way (101) is of a trapezoidal groove structure.

3. The polyethylene draft tube blow molding die of claim 1, wherein: the middle section mould (202) further comprises a sliding groove (2021) and a U-shaped protrusion (2022), the sliding groove (2021) is formed in the middle position of the front end of the middle section mould (202), the sliding groove (2021) is of a U-shaped groove structure, the U-shaped protrusion (2022) is arranged at the rear end of the middle section mould (202), and the caliber of the U-shaped protrusion (2022) is the same as that of the sliding groove (2021).

4. The polyethylene draft tube blow molding die of claim 1, wherein: locking mechanism (3) are including fixed column (301), frame (302), threaded rod (303) and lock nut (304), fixed column (301) are two cylinder structures, and two fixed column (301) weld respectively in baffle (4) and fixed plate (6) left side, and threaded rod (303) have all been welded to two fixed column (301), and two threaded rod (303) are the mode of symmetry and distribute, be equipped with frame (302) between threaded rod (303), and frame (302) and threaded rod (303) sliding connection, both ends all are equipped with lock nut (304) around frame (302), and lock nut (304) all rotate with threaded rod (303) and frame (302) and be connected.

5. The polyethylene draft tube blow molding die of claim 1, wherein: baffle (4) butt joint stand (401) and trapezoidal arch (402), baffle (4) are the cuboid structure, and baffle (4) bottom is equipped with trapezoidal arch (402), baffle (4) are through trapezoidal arch (402) and bottom plate (1) sliding connection, baffle (4) right-hand member is equipped with butt joint stand (401), and butt joint stand (401) through threaded mode and baffle (4) fixed connection.

6. The polyethylene draft tube blow molding die of claim 1, wherein: stretching mechanism (5) are including connection bearing (501), extension spring (502), inserted bar (503), connecting rod (504), butt joint (505) and U type mouth (506), connection bearing (501) are rotated through pivot and fixed plate (6) and are connected, U type mouth (506) have been seted up to butt joint (505), and can dismantle with baffle (4) through U type mouth (506) and be connected butt joint (505), all be equipped with inserted bar (503) with connection bearing (501) opposite face, and two inserted bar (503) are the mode distribution of symmetry, are equipped with connecting rod (504) between two stated inserted bar (503), and inserted bar (503) pass through screw and connecting rod (504) fixed connection, inserted bar (503) all are overlapped and are equipped with extension spring (502).

Technical Field

The invention belongs to the technical field of mold equipment, and particularly relates to a polyethylene guide pipe blow molding mold.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The thermoplastic resin is extruded or injection molded to obtain tubular plastic parison, which is hot or heated to soften, and then placed in a split mold, after the mold is closed, compressed air is introduced into the parison to blow the plastic parison to cling to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained. The blown film manufacturing process is in principle very similar to the blow molding of hollow articles, but it does not use a mold, and the blown film forming process is generally included in extrusion from the viewpoint of the classification of plastic processing techniques. The blow molding process began during world war ii for the production of low density polyethylene vials. In the late 50 s, the blow molding technology has been widely used with the advent of high density polyethylene and the development of blow molding machines. The volume of the hollow container can reach thousands of liters, and computer control is adopted in some production. Suitable plastics for blow molding are polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers. Blow molding can be classified into extrusion blow molding and injection blow molding according to the parison making method, and newly developed are multilayer blow molding and stretch blow molding.

As in application No.: the invention of CN201721087498.5 provides a blow molding die, which can solve the problem that some blow molding products use a general parting line structure, and the wall thickness at the parting line after the products are molded does not meet the use requirements. The blow molding mold comprises an upper half mold and a lower half mold, wherein a shearing structure is outwards arranged at the mold closing part of the upper half mold and the lower half mold, and 1 flash groove is respectively added at two sides of the mold closing part. According to the invention, by arranging the flash groove and the distance L from the flash groove to the shear structure, the excess blank can be extruded to the die cavity, so that the material of the product at the parting line is increased, and the problem that the wall thickness at the parting line does not meet the use requirement is solved. The structure of the invention has universality, and can solve the problems that some blow molding products use a general parting line structure, and the wall thickness at the parting line after the products are molded can not meet the use requirements.

Based on the retrieval of above-mentioned patent to and combine the equipment discovery among the prior art, among the polyethylene honeycomb duct blow mold of current, the mould installation is complicated, inconvenient maintenance and change, and the polyethylene honeycomb duct length of blowing moreover is difficult for adjusting, is difficult to satisfy the production demand.

In view of the above, research and improvement are made to solve the existing structure and defects, and a blow mold for polyethylene draft tube is provided to achieve a more practical purpose.

Disclosure of Invention

In order to solve the technical problems, the invention provides a polyethylene guide pipe blow molding mold, which aims to solve the problems that the mold installation process is complex, the maintenance and the replacement are inconvenient, the length of a blown polyethylene guide pipe is not easy to adjust, and the production requirement is difficult to meet in the existing polyethylene guide pipe blow molding mold.

The invention relates to a blow molding die of a polyethylene guide pipe, which is achieved by the following specific technical means:

a blow molding die for a polyethylene guide pipe comprises a bottom plate, wherein a fixing plate is welded at the front end of the top of the bottom plate; the top of the bottom plate is provided with a die body, and the die body is arranged at the rear end of the fixing plate; the rear end of the top of the bottom plate is provided with a baffle plate, and the baffle plate is arranged at the rear end of the die body; a locking mechanism is arranged on the left side of the die body; a stretching mechanism is arranged on the right side of the die body; the mould body comprises a front section mould, a middle section mould and a rear section mould, the front section mould is fixedly connected with the bottom plate through screws, the rear section mould is fixedly connected with the baffle plate through screws, and the middle section mould is slidably connected with the front section mould and the rear section mould.

Further, the bottom plate includes the slide, the bottom plate is the cuboid structure, and the slide has been seted up to bottom plate top surface intermediate position to the slide is trapezoidal groove structure.

Further, the middle section mould still includes spout and U type arch, the spout has been seted up to middle section mould front end intermediate position, and the spout is U type groove structure, middle section mould rear end is equipped with the U type arch, and the U type is protruding to be the same with the spout bore.

Further, locking mechanism includes fixed column, frame, threaded rod and lock nut, the fixed column is two cylinder structures, and two fixed columns weld respectively in baffle and fixed plate left side, and two fixed columns all weld the threaded rod, and two threaded rods are the mode distribution of symmetry, be equipped with the frame between the threaded rod, and frame and threaded rod sliding connection, both ends all are equipped with lock nut around the frame, and lock nut all rotates with threaded rod and frame to be connected.

Further, baffle butt joint stand and trapezoidal arch, the baffle is the cuboid structure, and the baffle bottom is equipped with trapezoidal arch, the baffle passes through trapezoidal arch and bottom plate sliding connection, the baffle right-hand member is equipped with the butt joint stand, and the butt joint stand passes through threaded mode and baffle fixed connection.

Further, the stretching mechanism is including connecting bearing, extension spring, inserted bar, connecting rod, butt joint and U type mouth, the connection bearing rotates through pivot and fixed plate to be connected, U type mouth has been seted up to the butt joint, and the butt joint passes through U type mouth and can dismantle with the baffle to be connected, the butt joint all is equipped with the inserted bar with the connection bearing opposite face, and two inserted bars are the mode distribution of symmetry, are equipped with the connecting rod between two said inserted bars, and the inserted bar passes through screw and connecting rod fixed connection, the inserted bar all overlaps and is equipped with extension spring.

Compared with the prior art, the invention has the following beneficial effects:

because the fixed column is two cylinder structures, and two fixed columns weld respectively in baffle and fixed plate left side, the threaded rod has all been welded to two fixed columns, and two threaded rods are the mode distribution of symmetry, be equipped with the frame between the threaded rod, and frame and threaded rod sliding connection, both ends all are equipped with lock nut around the frame, and lock nut all rotates with threaded rod and frame to be connected, rotate lock nut, promote the baffle through the threaded rod and slide backward, make the space increase between anterior segment mould and the back end mould, thereby increase the quantity of middle section mould, can adjust the length of mould body, the polyethylene honeycomb duct that makes the blowing out satisfies the production needs.

Because the connection bearing rotates with the fixed plate through the pivot to be connected, U type mouth has been seted up to the joint, and the joint can dismantle with the baffle through U type mouth and be connected, the joint all is equipped with the inserted bar with the connection bearing opposite face, and two inserted bars are the mode distribution of symmetry, be equipped with the connecting rod between two inserted bars, and the inserted bar passes through screw and connecting rod fixed connection, the inserted bar all overlaps and is equipped with extension spring, upwards lift the joint, can make U type mouth break away from the butt joint stand, and rotate the connecting rod, thereby make things convenient for the installation and the dismantlement of middle section mould.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic view of the rotational angle structure drawn from fig. 1.

Fig. 3 is a schematic axial view of the locking mechanism of the present invention.

Fig. 4 is a schematic axial view of the stretching mechanism of the present invention.

Fig. 5 is a schematic diagram of an explosive structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base plate; 101. a slideway; 2. a mold body; 201. a front section mold; 202. a middle section mould; 2021. a chute; 2022. a U-shaped bulge; 203. a back section mold; 3. a locking mechanism; 301. fixing a column; 302. a frame; 303. a threaded rod; 304. locking the nut; 4. a baffle plate; 401. butting the stand columns; 402. a trapezoidal protrusion; 5. a stretching mechanism; 501. connecting a bearing; 502. an extension spring; 503. inserting a rod; 504. a connecting rod; 505. a butt joint; 506. a U-shaped opening; 6. and (7) fixing the plate.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.