CN214419454U

CN214419454U - Mold for producing and processing worm

Info

Publication number: CN214419454U
Application number: CN202120637591.9U
Authority: CN
Inventors: 张宽朋
Original assignee: Wenzhou Strength Technology Co ltd Ouhai Branch
Current assignee: Wenzhou Strength Mold Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-10-19
Anticipated expiration: 2031-03-29

Abstract

The utility model relates to a mould for worm production and processing usefulness, including first mould and second mould, be provided with the formed part in the first mould, be provided with in the formed part with the worm that needs fashioned worm peripheral shape size the same chamber of moulding plastics, axial one side in the chamber of moulding plastics of worm is provided with the drawing of patterns opening, the second mould sets up in the drawing of patterns opening side of first mould, the second mould is provided with the hot melt connecting rod that extends to the worm intracavity of moulding plastics, be provided with on the first mould and be used for driving the formed part to carry out pivoted drawing of patterns actuating mechanism as the axis of rotation with the axial in the chamber of moulding plastics of worm. Adopt above-mentioned scheme, provide one kind through carrying out complete moulding plastics in the formed part to adopt the mode of formed part pivoted to realize that the worm spiral turns out the mould that demoulding produced a mould that is used for worm production and processing usefulness of high quality worm.

Description

Mold for producing and processing worm

Technical Field

The utility model relates to a mold processing, concretely relates to a mould that is used for worm production and processing to use.

Background

The mold is generally used for production in production enterprises, and the production line is high in working efficiency and convenient to operate. The thermoplastic plastic injection molding has short molding cycle and high production efficiency, the melt has small abrasion to the mold, and the plastic parts with complicated shapes, clear surface patterns and marks and high dimensional precision can be molded in large batch.

The worm is a common transmission element and has various production modes, and one of the production modes is injection molding through a mold.

However, because the worm cannot be demolded along the axial direction due to the structure of the thread on the worm, the existing production process for carrying out the worm by injection molding is generally as shown in fig. 1, the mold 2 'on the two radial sides of the worm 1' is used for carrying out mold closing, and the worm 1 'is injection molded, so that the following problems are caused, namely 1, the produced thread on the worm 1' may be misplaced at the joint position of the mold 2 ', and 2, the produced worm 1' generates redundant injection molding leftover materials 3 'at the joint position of the mold 2', so that the two problems can cause the smoothness of matching with other transmission elements when the worm is actually used.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide a mould for worm production and processing usefulness through carrying out complete moulding plastics in the formed part to adopt formed part pivoted mode to realize that the worm spiral changes the demoulding and produces high quality worm.

In order to achieve the above purpose, the utility model provides a following technical scheme: including first mould and second mould, its characterized in that: be provided with the formed part in the first mould, be provided with in the formed part with the worm that needs fashioned worm peripheral shape size the same chamber of moulding plastics, the axial one side in the worm chamber of moulding plastics is provided with the drawing of patterns opening, the second mould sets up in the drawing of patterns opening side of first mould, the second mould is provided with the hot melt connecting rod that extends to the worm intracavity of moulding plastics, be provided with on the first mould and be used for driving the formed part and use the axial in worm chamber of moulding plastics to carry out pivoted drawing of patterns actuating mechanism as the axis of rotation.

The utility model discloses further set up to: the first mold is provided with a plurality of sliding guide rods, the axial direction of each sliding guide rod is parallel to the axial direction of the worm injection molding cavity, and the second mold is provided with first sliding through holes for the corresponding sliding guide rods to penetrate through.

The utility model discloses further set up to: be provided with deep groove ball bearing between formed part and the first mould, be provided with thrust ball bearing between formed part and the first mould, and thrust ball bearing is located the formed part and deviates from the second mould side, deep groove ball bearing and thrust ball bearing's axial is coaxial setting with the axial in worm injection molding chamber.

The utility model discloses further set up to: drawing of patterns actuating mechanism includes driving motor, first gear and second gear, driving motor is fixed to be set up in first mould, first gear is fixed to be set up in driving motor's output shaft, the second gear is fixed to be set up in the formed part, and the axial of second gear and the axial in worm injection molding chamber are coaxial setting, first gear is connected with second gear transmission.

The utility model discloses further set up to: the number of the forming parts is a plurality of, the number of the second gears is corresponding to the forming parts, and the second gears are respectively and fixedly installed on the corresponding forming parts.

The utility model discloses further set up to: the axial of hot melt connecting rod and the axial of worm injection molding chamber are mutual parallel arrangement, it is provided with the punching press seat to slide in the second mould, and the direction of sliding of punching press seat is the same with the axial of hot melt connecting rod, the last fixed drawing of patterns thimble that is used for the worm from hot melt connecting rod top down that will mould plastics that is provided with of punching press seat, the quantity of drawing of patterns thimble is a plurality of roots, and each drawing of patterns thimble sets up along the circumference range of hot melt connecting rod.

The utility model discloses further set up to: the first mold comprises a forming half body and a feeding half body which are sequentially far away from the second mold, the forming part is arranged on the forming half body, each sliding guide rod is fixedly arranged on the feeding half body, the forming half body is provided with a second sliding through hole for the corresponding sliding guide rod to penetrate through corresponding to each sliding guide rod, a material breaking spring used for pushing the forming half body towards the feeding half body is arranged between the forming half body and the feeding half body, the feeding half body is provided with a feeding pipe, and the feeding pipe is provided with an injection molding port extending to a worm injection molding cavity.

By adopting the technical scheme, after the first mold and the second mold are closed, injection molding is carried out in the worm injection molding cavity of the formed part to form a complete worm, the rotation of the formed part is realized through the demolding driving mechanism after cooling is finished, meanwhile, the mold opening is realized by the second mold and the first mold, the worm which completes injection molding can be relatively rotated and taken out from the worm injection molding cavity through the hot-melting connecting rod, and the machined worm is axially taken out, so that the circumferential and radial structural precision of the produced worm is ensured, and the smoothness of the worm matched with other transmission elements in use is ensured.

Drawings

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

FIG. 1 is a schematic view of a prior art worm production method;

FIG. 2 is an assembly view of an embodiment of the present invention;

FIG. 3 is an assembly view of a first mold in an embodiment of the present invention;

FIG. 4 is an assembly view of a second mold in an embodiment of the present invention;

FIG. 5 is an assembly view of a molding member and a demolding-driving mechanism according to an embodiment of the present invention;

FIG. 6 is a right side view of an embodiment of the present invention;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is an enlarged view of C in FIG. 7;

fig. 10 is an enlarged view of D in fig. 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 2-4, the utility model discloses a mould for worm production and processing usefulness, including first mould 1 and second mould 2, wherein, first mould 1 is the level with second mould 2 and sets up in opposite directions, the setting in opposite directions about the picture presentation adopts, and first mould 1 is located the right side of second mould 2, in addition, first mould 1 is the square, and four angle ends of first mould 1 are provided with one respectively along the guide arm 3 that slides of controlling the direction extension, and second mould 2 set up with the first perforation 21 that slides of respectively sliding guide arm 3 complex, make first mould 1 and second mould 2 realize the location through sliding guide arm 3 and be connected, and control the relative slip of direction and realize compound die and die sinking.

Referring to fig. 5-10, in the present embodiment, a molding member 4 is disposed in a first mold 1, an outer periphery of the molding member 4 is cylindrical, and an axial direction of the molding member 4 extends in a left-right direction, and further, a deep groove ball bearing 51 is disposed between the molding member 4 and the first mold 1 to enable the molding member 4 and the first mold 1 to rotate in a circumferential direction, wherein a worm injection cavity 41 having a same size as an outer periphery of a worm 7 to be molded is disposed in the molding member 4, and the worm injection cavity 41 is disposed coaxially with the molding member 4, further, a demolding opening 42 is disposed through the molding member 4 toward a left side in an axial direction of the worm injection cavity 41, so that the injection molded worm 7 can be separated toward a left side through the demolding opening 42 to achieve blanking, further, a hot-melting connecting rod 22 extending into the worm injection cavity 41 is fixedly disposed toward the first mold 1 side of the second mold 2, and an axial direction of the hot-melting connecting rod 22 extends in a left-right direction, the first mold 1 is provided with a demoulding driving mechanism 6 for driving the formed part 4 to rotate by taking the axial direction of the worm injection molding cavity 41 as a rotating shaft, in addition, a feeding pipe 11 is arranged in the first mold 1, hot melt plastic is introduced into the feeding pipe 11 from the right side of the first mold 1, an injection port 12 is arranged on the right side of the worm injection molding cavity 41, therefore, the whole processing process is that the first mold 1 and the second mold 2 are closed, the hot melt plastic is introduced into the first mold 1 through the feeding pipe 11 and is injected into the worm injection molding cavity 41 through the injection port 12 for injection molding, after cooling is finished, the formed part 4 rotates through the demoulding driving mechanism 6, meanwhile, the second mold 2 and the first mold 1 are opened, the worm 7 which is subjected to injection molding can be relatively taken out from the worm injection molding cavity 41 through the hot melt connecting rod 22, and the processed worm 7 is taken out along the axial direction, therefore, the precision of the circumferential and radial structure of the produced worm 7 is ensured, and the smoothness of the matching use with other transmission elements when the worm 7 is used in actual use is ensured.

In addition, in the embodiment, the second mold 2 is provided with a stamping seat 23 in a sliding manner (the sliding of the stamping seat 23 can be realized by a guide rod, a sliding groove, and the like), the sliding direction of the stamping seat 23 is the same as the axial direction of the hot-melt connecting rod 22, and the stamping seat 23 slides in the left-right direction, and in addition, demolding thimbles 24 for ejecting the injection molding worm 7 from the hot-melt connecting rod 22 are fixedly installed on the right side of the stamping seat 23 by bolts and the like, and preferably, the number of the demolding thimbles 24 is 4, and the demolding thimbles 24 are arranged along the circumferential direction of the hot-melt connecting rod 22, so that after the mold is opened, the demolding thimbles 24 push the injection molding worm 7 towards the right by driving the stamping seat 23 to slide towards the right, and the worm 7 is separated from the hot-melt connecting rod 22 under the axial acting force.

Preferably, a return spring 25 is disposed between the stamping seat 23 and the second mold 2 in this embodiment, and a return direction of the return spring 25 is the same as a sliding direction of the demolding thimble 24 toward the left, so that the demolding thimble 24 automatically returns after demolding is completed.

In addition, in the present embodiment, the thrust ball bearing 52 that is coaxial with the molded article 4 in the axial direction is provided between the molded article 4 and the first mold 1, and the thrust ball bearing 52 is located on the side of the molded article 4 that is away from the second mold 2, so when the first mold 1 and the second mold 2 are clamped to extrude the molded article 4, the molded article 4 is extruded to the right against the thrust ball bearing 52, and the molded article 4 is prevented from being directly extruded to the right against the first mold 1 to generate sliding friction, which affects the smoothness of the rotation of the molded article 4 relative to the first mold 1.

Preferably, the demolding driving mechanism 6 in this embodiment includes a driving motor 61, a first gear 62, a second gear 63, and a plurality of engaging gears 64, the driving motor 61 is fixedly mounted on the first mold 1 by bolts or the like, the first gear 62 is fixedly mounted on an output shaft of the driving motor 61 by key connection or the like, the second gear 63 is fixedly mounted on the periphery of the molded part 4 by integral molding, and the first gear 62 and the second gear 63 are engaged by the engaging gears 64 to realize transmission connection, so that the molded part 4 is driven to rotate by the operation of the driving motor 61 and the engagement transmission of the first gear 62, the second gear 63, and the engaging gears 64 to cooperate with demolding.

Preferably, the driving motor 61 in the present embodiment is installed above the first mold 1, so that the feeding direction of the worm 7 fed by gravity after production is a direction away from the driving motor 61, and thus the installation position of the driving motor 61 does not interfere with the worm 7.

Preferably, the number of the molding members 4 in this embodiment is 2, the number of the second gears 63 is set corresponding to the molding members 4, and each second gear 63 is fixedly mounted on the corresponding molding member 4, so that a plurality of worms 7 can be simultaneously produced, and the production efficiency can be improved.

Preferably, the second gears 63 in this embodiment are gears of the same type and size, and the second gears 63 are engaged with the same engaging gear 64, so as to ensure that the transmission ratios are the same.

Wherein, the first mold 1 in this embodiment includes a forming half body 13 located on the left side and a feeding half body 14 located on the right side in sequence, wherein the formed part 4 is disposed on the forming half body 13, each sliding guide rod 3 and the feeding pipe 11 are fixedly disposed on the feeding half body 14, in addition, the forming half body 13 is provided with a second sliding through hole (view angle reason, not shown in the figures) corresponding to each sliding guide rod 3 for the corresponding sliding guide rod 3 to penetrate, thereby realizing that the forming half body 13 can slide in the left-right direction relative to the feeding half body 14, correspondingly, a material breaking spring 15 for pushing the forming half body 13 towards the direction far away from the feeding half body 14 is disposed between the forming half body 13 and the feeding half body 14 in a compression manner, therefore, when the mold is opened, the material breaking spring 15 will drive the forming half body 13 to move towards the left in advance and far away from the feeding pipe 11 to realize that the injection port 12 is separated from the injection molding worm cavity 41, thereby realizing that the raw material is cut off, after which the second mould 2 is moved further to complete the opening of the mould with the half-mould 13.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a mould for worm production and processing usefulness, includes first mould and second mould, its characterized in that: be provided with the formed part in the first mould, be provided with in the formed part with the worm that needs fashioned worm peripheral shape size the same chamber of moulding plastics, the axial one side in the worm chamber of moulding plastics is provided with the drawing of patterns opening, the second mould sets up in the drawing of patterns opening side of first mould, the second mould is provided with the hot melt connecting rod that extends to the worm intracavity of moulding plastics, be provided with on the first mould and be used for driving the formed part and use the axial in worm chamber of moulding plastics to carry out pivoted drawing of patterns actuating mechanism as the axis of rotation.

2. The mold for worm production and processing according to claim 1, wherein: the first mold is provided with a plurality of sliding guide rods, the axial direction of each sliding guide rod is parallel to the axial direction of the worm injection molding cavity, and the second mold is provided with first sliding through holes for the corresponding sliding guide rods to penetrate through.

3. The mold for worm production and processing according to claim 1, wherein: be provided with deep groove ball bearing between formed part and the first mould, be provided with thrust ball bearing between formed part and the first mould, and thrust ball bearing is located the formed part and deviates from the second mould side, deep groove ball bearing and thrust ball bearing's axial is coaxial setting with the axial in worm injection molding chamber.

4. The mold for worm production and processing according to claim 1, wherein: drawing of patterns actuating mechanism includes driving motor, first gear and second gear, driving motor is fixed to be set up in first mould, first gear is fixed to be set up in driving motor's output shaft, the second gear is fixed to be set up in the formed part, and the axial of second gear and the axial in worm injection molding chamber are coaxial setting, first gear is connected with second gear transmission.

5. The mold for worm production and processing according to claim 4, wherein: the number of the forming parts is a plurality of, the number of the second gears is corresponding to the forming parts, and the second gears are respectively and fixedly installed on the corresponding forming parts.

6. The mold for worm production and processing according to claim 1, wherein: the axial of hot melt connecting rod and the axial of worm injection molding chamber are mutual parallel arrangement, it is provided with the punching press seat to slide in the second mould, and the direction of sliding of punching press seat is the same with the axial of hot melt connecting rod, the last fixed drawing of patterns thimble that is used for the worm from hot melt connecting rod top down that will mould plastics that is provided with of punching press seat, the quantity of drawing of patterns thimble is a plurality of roots, and each drawing of patterns thimble sets up along the circumference range of hot melt connecting rod.

7. The mold for worm production and processing according to claim 2, wherein: the first mold comprises a forming half body and a feeding half body which are sequentially far away from the second mold, the forming part is arranged on the forming half body, each sliding guide rod is fixedly arranged on the feeding half body, the forming half body is provided with a second sliding through hole for the corresponding sliding guide rod to penetrate through corresponding to each sliding guide rod, a material breaking spring used for pushing the forming half body towards the feeding half body is arranged between the forming half body and the feeding half body, the feeding half body is provided with a feeding pipe, and the feeding pipe is provided with an injection molding port extending to a worm injection molding cavity.