阅读说明：本技术 一种塑料瓶盖模具的退螺纹脱模结构 (Screw thread demoulding structure of plastic bottle cap mould ) 是由 洪明祈 钟建军 于 2020-10-29 设计创作，主要内容包括：本发明公开了一种塑料瓶盖模具的退螺纹脱模结构,其结构包括底模、顶模、成型板,底模焊接于成型板下方,顶模通过过渡配合连接于成型板上方,底模设有底板、顶针固定板、弹簧、连接孔,底板焊接于顶针固定板底部,顶针固定板设于底模内部,弹簧焊接于底模与成型板之间,连接孔设于成型板侧表面上；成型板设有定位柱、出模导柱,定位柱焊接于成型板上表面,出模导柱分布于成型板上表面上,本发明的有益效果是：通过支杆与脱模顶针相配合,带动支杆旋转上升,同时带动冷凝管对模具进行快速冷却,在进行冷却过后再旋转带动螺纹柱上的模具进行快速旋转退模,支杆辅助螺纹柱退模,速度快,质量高,降低瓶盖内壁螺纹的损坏率。(The invention discloses a thread-removing demoulding structure of a plastic bottle cap mould, which comprises a bottom mould, a top mould and a forming plate, wherein the bottom mould is welded below the forming plate, the top mould is connected above the forming plate through transition fit, the bottom mould is provided with a bottom plate, a thimble fixing plate, a spring and a connecting hole, the bottom plate is welded at the bottom of the thimble fixing plate, the thimble fixing plate is arranged in the bottom mould, the spring is welded between the bottom mould and the forming plate, and the connecting hole is arranged on the side surface of the forming plate; the forming plate is provided with a positioning column and demolding guide columns, the positioning column is welded on the upper surface of the forming plate, and the demolding guide columns are distributed on the upper surface of the forming plate, so that the forming plate has the beneficial effects that: cooperate through branch and drawing of patterns thimble, drive the rotatory rising of branch, drive the condenser pipe simultaneously and carry out quick cooling to the mould, rotate the mould that drives on the screw thread post again after cooling down and carry out the fast rotation and move back the mould, the supplementary screw thread post of branch moves back the mould, and is fast, and the high quality reduces the spoilage of bottle lid inner wall screw thread.)

1. The utility model provides a back screw thread demoulding structure of plastics bottle lid mould, its structure includes die block (1), top mould (2), profiled sheeting (3), die block (1) welds in profiled sheeting (3) below, top mould (2) are connected in profiled sheeting (3) top through transition fit, its characterized in that:

the bottom die (1) is provided with a bottom plate (10), an ejector pin fixing plate (11), a spring (12) and a connecting hole (13), the bottom plate (10) is welded to the bottom of the ejector pin fixing plate (11), the ejector pin fixing plate (11) is arranged inside the bottom die (1), the spring (12) is welded between the bottom die (1) and the forming plate (3), and the connecting hole (13) is formed in the side surface of the forming plate (3);

the forming plate (3) is provided with a positioning column (30) and a mold stripping guide column (31), the positioning column (30) is welded on the upper surface of the forming plate (3), and the mold stripping guide column (31) is distributed on the upper surface of the forming plate (3).

2. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 1, wherein: the demolding device is characterized in that the demolding guide column (31) is composed of a clamping ring (310), a demolding hydraulic column (311), a threaded column (312) and a demolding thimble (313), the clamping ring (310) connects the demolding guide column (31) to the forming plate (3), the demolding hydraulic column (311) is welded inside the forming plate (3), the threaded column (312) is welded on the upper surface of the forming plate (3), the demolding thimble (313) is arranged inside the threaded column (312) and welded with the demolding hydraulic column (311), the clamping ring (310) is of a stainless steel annular structure, threads are arranged on the outer surfaces of the threaded column (312) and the demolding thimble (313), the demolding hydraulic column (311) is used for pushing the demolding thimble (313) to lift, and the demolding thimble (313) is used for demolding after the threads are removed.

3. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 2, wherein: the die stripping hydraulic column (311) is provided with a mandril (A), and the mandril (A) and the die stripping hydraulic column (311) are in transition fit connection.

4. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 3, wherein: ejector pin (A) is equipped with spout (A1), branch (A2), on ejector pin (A) surface was located in spout (A1), branch (A2) transition cooperation is connected on ejector pin (A), branch (A2) inlays and locates inside spout (A1), spout (A1) are circular structure recess, branch (A2) are 4 roots, branch (A2) are the metal material.

5. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 4, wherein: branch (A2) is equipped with buckle ware (a), condenser pipe (b1), connecting plate (b2), buckle ware (a) is through hinge connection on ejector pin (A), on connecting plate (b2) surface is located in condenser pipe (b1), connecting plate (b2) welds in branch (A2) top.

6. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 5, wherein: the condenser is characterized in that the fasteners (a) are made of metal, the number of the fasteners (a) is 44, the number of the condensation pipes (b1) is 4, the connecting plate (b2) is of an annular plate-shaped structure, and the connecting plate (b2) is made of metal.

7. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 2, wherein: the screw thread post (312) is equipped with dodges groove (B), rotates groove (C), dodge groove (B) and inlay inside locating screw thread post (312), it locates inside screw thread post (312) to rotate groove (C).

8. The thread stripping and demolding structure of a plastic bottle cap mold according to claim 7, wherein: the number of the avoiding grooves (B) is 4, and the number of the rotating grooves (C) is an annular structure.

Technical Field

The invention relates to the field of molds, in particular to a thread-removing demolding structure of a plastic bottle cap mold.

Background

The mould is a variety of moulds and tools for obtaining required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, the mould is a tool for manufacturing formed articles, the tool is composed of various parts, and different moulds are composed of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

Because the thread structure of lid also distributes to present plastics bottle lid mould has the screw thread on the mould, and the screw thread mould can not be like other smooth moulds vertical back mould when carrying out the back mould, and need carry out the screw thread back mould, because the back mould that retreats after needs cooling when the back mould, so the back mould time is of a specified duration, and the back mould damages the screw thread of inner wall easily.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provides a thread-removing demoulding structure of a plastic bottle cap mould.

The invention is realized by adopting the following technical scheme: the structure of the demoulding structure for the thread removing of the plastic bottle cap mould comprises a bottom mould, a top mould and a forming plate, wherein the bottom mould is welded below the forming plate, the top mould is connected above the forming plate through transition fit, the bottom mould is provided with a bottom plate, an ejector fixing plate, a spring and a connecting hole, the bottom plate is welded at the bottom of the ejector fixing plate, the ejector fixing plate is arranged inside the bottom mould, the spring is welded between the bottom mould and the forming plate, and the connecting hole is formed in the side surface of the forming plate; the forming plate is provided with a positioning column and a demolding guide column, the positioning column is welded on the upper surface of the forming plate, and the demolding guide column is distributed on the upper surface of the forming plate.

Furthermore, the demolding guide pillar comprises rand, demolding hydraulic column, screw thread post, drawing of patterns thimble, the rand will be drawn of patterns guide pillar and connect on the profiled sheeting, the demolding hydraulic column welds inside the profiled sheeting, the screw thread post welds in the profiled sheeting upper surface, the drawing of patterns thimble is located screw thread post inside and is welded mutually with the demolding hydraulic column, the rand is stainless steel ring structure, all be equipped with the screw thread on screw thread post and the drawing of patterns thimble surface, the demolding hydraulic column is used for promoting the drawing of patterns thimble and goes up and down, the drawing of patterns thimble is used for going on the drawing of patterns of withdrawing threads.

Furthermore, the die stripping hydraulic column is provided with an ejector rod, and the ejector rod and the die stripping hydraulic column are connected together in a transition fit mode.

Further, the ejector pin is equipped with spout, branch, the spout is located on the ejector pin surface, branch transition fit connects on the ejector pin, branch inlays and locates inside the spout, the spout is circular structure recess, branch is 4, branch is the metal material, spout cooperation branch rotates on the ejector pin, branch is used for promoting the drawing of patterns thimble and shifts up.

Further, branch is equipped with buckle ware, condenser pipe, connecting plate, the buckle ware passes through hinge connection on the ejector pin, the condenser pipe is located on the connecting plate surface, the connecting plate welds in the branch top.

Further, the buckle ware is the metal material, the buckle ware is 4, the condenser pipe is for organizing, the connecting plate is annular platelike structure, the connecting plate is the metal material, the buckle ware is used for with branch lock on the ejector pin surface, the condenser pipe is used for carrying out cooling treatment to the screw thread post, the connecting plate is used for driving the condenser pipe and rotates in the screw thread post.

Further, the screw thread post is equipped with dodges the groove, rotates the groove, dodge the groove and inlay and locate inside the screw thread post, it locates inside the screw thread post to rotate the groove.

Further, it is 4 to dodge the groove, it is the loop configuration to rotate the groove, it is used for cooperating branch to go up and down to dodge the groove, it is used for cooperating the connecting plate to rotate the groove.

Advantageous effects

The invention has the working principle that:

when using, behind the mould shaping on the screw post, promote the rotatory lift of ejector pin through demolding hydraulic pressure post, drive branch simultaneously and rotate in the spout, the connecting plate at branch pivoted in-process drive branch top rotates, it rotates to drive the condenser pipe in the screw post dodge the inslot when the connecting plate rotates, make the condenser pipe rotate drive to the thinnest inner wall position with the screw thread of screw post, make the condenser pipe cool off fast the mould on the screw post, then under the drive of the screw thread of drawing of patterns thimble surface, make branch rotate simultaneously at the in-process that rises, pass at the rotatory in-process that rises of branch and dodge the groove and drive the mould and carry out the rotatory drawing of patterns, fix branch on the ejector pin surface through the buckle ware simultaneously at branch pivoted in-process.

Has the advantages that:

cooperate through branch and drawing of patterns thimble, drive the rotatory rising of branch, drive the condenser pipe simultaneously and carry out quick cooling to the mould, rotate the mould that drives on the screw thread post again after cooling down and carry out the fast rotation and move back the mould, the supplementary screw thread post of branch moves back the mould, and is fast, and the high quality reduces the spoilage of bottle lid inner wall screw thread.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a thread stripping and demolding structure of a plastic bottle cap mold according to the present invention.

Fig. 2 is a schematic top view of the forming plate of the present invention.

FIG. 3 is an enlarged schematic view of the mold stripping guide pillar according to the present invention.

FIG. 4 is a schematic structural view showing a state in which the carrier rod is connected to the threaded post according to the present invention.

Fig. 5 is an enlarged schematic view of the strut of the present invention.

FIG. 6 is a cross-sectional top view of the threaded post and the ejector pin of the present invention.

In the figure: the device comprises a bottom die 1, a top die 2, a forming plate 3, a bottom plate 10, an ejector pin fixing plate 11, a spring 12, a connecting hole 13, a positioning column 30, a die drawing guide column 31, a clamping ring 310, a die withdrawing hydraulic column 311, a threaded column 312, a die drawing ejector pin 313, an ejector rod A, a sliding groove A1, a supporting rod A2, a buckle device a, a condensation pipe B1, a connecting plate B2, an avoiding groove B and a rotating groove C.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution for a thread-removing and mold-releasing structure of a plastic bottle cap mold: the structure of the die comprises a bottom die 1, a top die 2 and a forming plate 3, wherein the bottom die 1 is welded below the forming plate 3, the top die 2 is connected above the forming plate 3 in a transition fit manner, the bottom die 1 is provided with a bottom plate 10, an ejector pin fixing plate 11, a spring 12 and a connecting hole 13, the bottom plate 10 is welded at the bottom of the ejector pin fixing plate 11, the ejector pin fixing plate 11 is arranged inside the bottom die 1, the spring 12 is welded between the bottom die 1 and the forming plate 3, and the connecting hole 13 is formed in the side surface of the forming plate 3; the forming plate 3 is provided with a positioning column 30 and a demoulding guide column 31, the positioning column 30 is welded on the upper surface of the forming plate 3, the demoulding guide column 31 is distributed on the upper surface of the forming plate 3, the demoulding guide column 31 is composed of a clamping ring 310, a demoulding hydraulic column 311, a threaded column 312 and a demoulding thimble 313, the clamping ring 310 connects the demoulding guide column 31 on the forming plate 3, the demoulding hydraulic column 311 is welded inside the forming plate 3, the threaded column 312 is welded on the upper surface of the forming plate 3, the demoulding thimble 313 is arranged inside the threaded column 312 and is welded with the demoulding hydraulic column 311, the clamping ring 310 is of a stainless steel annular structure, threads are arranged on the outer surfaces of the threaded column 312 and the demoulding thimble 313, the demoulding hydraulic column 311 is used for pushing the demoulding thimble 313 to lift, the demoulding thimble 313 is used for demoulding with thread stripping, the demoulding hydraulic column 311 is provided with a mandril A, ejector pin A links together with the transition fit of demolding hydraulic column 311, ejector pin A is equipped with spout A1, branch A2, spout A1 is located on ejector pin A surface, branch A2 transition fit is connected on ejector pin A, branch A2 inlays and locates inside spout A1, spout A1 is circular structure recess, branch A2 is 4, branch A2 is the metal material, branch A2 is equipped with buckle ware an, condenser pipe B1, connecting plate B2, buckle ware an passes through hinge connection on ejector pin A, condenser pipe B1 is located on connecting plate B2 surface, connecting plate B2 welds in branch A2 top, buckle ware a is the metal material, buckle ware a is 4, condenser pipe B1 is 4 groups, connecting plate B2 is annular platelike structure, connecting plate B2 is the metal material, threaded column 312 is equipped with and lets out groove B B1, Rotate groove C, dodge groove B to inlay and locate inside threaded post 312, it locates inside threaded post 312 to rotate groove C, it is 4 to dodge groove B, it is the loop configuration to rotate groove C.

Example (b): when in use, after the die on the threaded column 312 is molded, the ejector rod A is pushed to rotate and rise through the die-stripping hydraulic column 311, and meanwhile, the supporting rod A2 is driven to rotate in the chute A1, the connecting plate B2 at the top of the strut A2 is driven to rotate in the rotating process of the strut A2, the condensing tube B1 is driven to rotate in the avoiding groove B in the threaded column 312 when the connecting plate B2 rotates, so that the condensation pipe b1 is rotated to bring the inner wall position with the thinnest screw thread of the screw thread column 312, the condensation pipe b1 rapidly cools the mould on the screw thread column 312, then, under the drive of the thread on the outer surface of the demoulding thimble 313, the supporting rod A2 is simultaneously rotated in the process of rising, the die is driven to rotate and demould by passing through the avoiding groove C in the process that the support rod A2 rotates and rises, and meanwhile, the support rod A2 is fixed on the outer surface of the ejector rod A through the fastener a in the process that the support rod A2 rotates.

Compared with the prior art, the invention has the technical progress that:

cooperate through branch and drawing of patterns thimble, drive the rotatory rising of branch, drive the condenser pipe simultaneously and carry out quick cooling to the mould, rotate the mould that drives on the screw thread post again after cooling down and carry out the fast rotation and move back the mould, the supplementary screw thread post of branch moves back the mould, and is fast, and the high quality reduces the spoilage of bottle lid inner wall screw thread.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.