CN218084033U

CN218084033U - Mold core assembly, molding assembly and bottle cap mold

Info

Publication number: CN218084033U
Application number: CN202222009347.5U
Authority: CN
Inventors: 谢国基; 姜晓平; 林昌武; 魏杰; 卢佳; 杨建茁
Original assignee: GDXL Precise Machinery Co Ltd
Current assignee: GDXL Precise Machinery Co Ltd
Priority date: 2022-07-30
Filing date: 2022-07-30
Publication date: 2022-12-20
Anticipated expiration: 2032-07-30

Abstract

The utility model discloses a core assembly, a forming assembly and a bottle cap mould, wherein the core assembly comprises a core bottom plate, a first core, a second core and a third core; the second core is inserted into the central cavity of the first core, and the first core and the second core are directly or indirectly fixed on the core bottom plate; the third core is axially movably arranged on the upper portions of the first core and the second core, at least part of the outer wall of the third core is in contact with the first core, at least part of the inner wall of the third core is in contact with the second core, and compared with a traditional bottle cap mold adopting a pneumatic demolding mode, the bottle cap mold does not need to adopt a third core fixing plate and a lining fixing plate on a rear mold part, so that the number of templates is further reduced, the mold structure is effectively simplified, the manufacturing cost of the mold is correspondingly reduced, the thickness of the mold is reduced, and the use flexibility of the mold is improved.

Description

Mold core assembly, molding assembly and bottle cap mold

Technical Field

The invention belongs to the technical field of bottle cap forming, and particularly relates to a mold core assembly, a forming assembly and a bottle cap mold.

Background

In the traditional bottle cap mold adopting a pneumatic demolding mode, for example, in a patent with publication number CN207077725U, a rear mold part of the bottle cap mold comprises an inner core fixing plate, a threaded core fixing plate, a lining fixing plate and a push plate, and 4 templates are required, so that the structure is relatively complex, the thickness is relatively thick, the manufacturing cost is relatively high, and the use flexibility of the mold and the economic benefit of enterprises are not facilitated. In the traditional bottle cap mold, the cooling structure is unreasonable in design, the distance from a bottle cap cavity is far away, so that the cooling efficiency of a bottle cap product after injection molding is low, the uniformity is poor, the bottle cap can be demoulded after long-time cooling, and the production efficiency of the bottle cap is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a core assembly, a forming assembly and a bottle cap mold which are uniformly and efficiently cooled.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a core assembly comprising a core base plate, a first core, a second core, and a third core; the second core is inserted into the central cavity of the first core, and the first core and the second core are directly or indirectly fixed on the core bottom plate; the third core is axially movably mounted on the upper portions of the first and second cores, at least a portion of an outer wall of the third core is in contact with the first core, and at least a portion of an inner wall of the third core is in contact with the second core.

The utility model discloses in, first core is equipped with axial spacing groove, the spacing groove radially runs through first core, the spacing inslot be equipped with be used for connecting the push pedal subassembly with the spacing pin of third core, the one end of spacing pin is passed the spacing groove with the third core is fixed to be linked to each other, the other end of spacing pin is followed the spacing groove stretches out.

The utility model discloses in, the core bottom plate has the storage tank, first core cartridge in the storage tank.

The utility model discloses in, first core with be equipped with connecting pin between the storage tank lateral wall, first core with pass through between the core bottom plate connecting pin axial positioning.

In the utility model, a pressing block is fixed on the top end of the core bottom plate, the first core is provided with a groove for the pressing block to extend into the pressing part, and the pressing block presses and fixes the first core on the core bottom plate; the connecting pin is positioned below the pressing block.

The utility model discloses in, first core with through locking pin fixed connection between the second core, the position of locking pin with the position of briquetting is corresponding, one side portion of briquetting support press in a terminal surface of locking pin, the other end of locking pin passes first core fixed connection in the second core.

The utility model discloses in, the second type core has the cooling inner chamber the chamber wall of cooling inner chamber sets up relative slot, insert the manger plate piece in the slot, the manger plate piece will the slot is separated for intaking the side and goes out the water side, the top of manger plate piece with it has the route that suits with the coolant flow to reserve between the top surface of cooling inner chamber, makes intake the water side with it is linked together to go out the water side.

Based on the core assembly provided by the above, the utility model also provides a molding assembly, including push sleeve and the above core assembly, the push sleeve is sleeved on the periphery of the first core of the core assembly, the push sleeve at least limits part of the ring surface of the opening end of the bottle cap; and one end of the limiting pin of the core component, which extends out of the limiting groove, is movably connected with the push sleeve.

The utility model discloses in, the inner wall that pushes away the cover is equipped with axial accepting groove, the accepting groove by push away the reverse extension of terminal surface under the cover, the tip of spacing pin is acceptd in the accepting groove, when being in the compound die state spacing pin with the top of accepting groove reaches the bottom contact of the spacing groove of core subassembly.

Based on the above-mentioned forming assembly that provides, the utility model also provides a bottle lid mould, including preceding membrane module and foretell forming assembly, preceding membrane module with the bottle lid die cavity is injectd in the forming assembly cooperation.

The invention has the beneficial effects that:

1. compared with the traditional bottle cap mold adopting a pneumatic demolding mode, the bottle cap mold has the advantages that the rear mold part does not need to adopt a third core fixing plate (namely a threaded mold core fixing plate) and a lining fixing plate, the number of templates is further reduced, the mold structure is effectively simplified, the manufacturing cost of the mold is correspondingly reduced, the thickness of the mold is reduced, and the use flexibility of the mold is improved.

2. The cooling water adopts the utility model discloses a mode flows, can press close to the bottle lid product more, can cool off the bottle lid product more evenly, high-efficiently, helps improving the quality of bottle lid product.

Drawings

The invention is further illustrated in the following description with reference to the figures and embodiments:

fig. 1 is a schematic cross-sectional structural view of the bottle cap mold in the embodiment in a mold closing state;

fig. 2 is a schematic cross-sectional view of the bottle cap mold according to the embodiment in a state that the bottle cap is completely demolded.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.

The embodiment is as follows:

as shown in fig. 1 and 2, the present embodiment discloses a core assembly, the core assembly 1 including a core base plate 11, a first core 12, a second core 13 and a third core 14; the first core 12 is fixed on the core bottom plate 11, the second core 13 is inserted into the central cavity of the first core 12, wherein the first core 12 and the second core 13 can be directly or indirectly fixed on the core bottom plate 11; the third core 14 is axially movably installed at upper portions of the first core 12 and the second core 13, at least a part of an outer wall of the third core 14 is in contact with the first core 12, and at least a part of an inner wall of the third core 14 is in contact with the second core 13. The first core 12 is provided with an axial limiting groove 121, the limiting groove 121 radially penetrates through the first core 12, a limiting pin 15 used for connecting the push plate component 2 and the third core 14 is arranged in the limiting groove 121, one end of the limiting pin 15 penetrates through the limiting groove 121 to be fixedly connected with the third core 14, and the other end of the limiting pin 15 extends out of the limiting groove 121 to be movably connected with the push plate component 2.

In this embodiment, the second core 13 has a cooling cavity, opposite slots are formed in the cavity wall of the cooling cavity, a water-retaining sheet 10 is inserted into the slots, the water-retaining sheet 10 divides the slots into a water inlet side 131 and a water outlet side 132, the bottom end of the water-retaining sheet 10 contacts with the adjusting pad 18 or the core bottom plate 11, and a passage adapted to the flow of the cooling medium is reserved between the top end of the water-retaining sheet 10 and the top surface of the cooling cavity, so that the water inlet side 131 is communicated with the water outlet side 132. The lower part of the second core 13 is provided with a first water inlet hole 133 and a first water outlet hole 134 which are respectively communicated with the water inlet side 131 and the water outlet side 132; the lower part of the first core 12 is provided with a second water inlet 123 and a second water outlet 124 which are respectively communicated with the first water inlet 133 and the first water outlet 134; the core bottom plate 11 is provided with a water inlet channel (not shown in the drawings) and a water outlet channel (not shown in the drawings) which are respectively communicated with the second water inlet hole 123 and the second water outlet hole 124.

In this embodiment, the cooling water flows through the water inlet channel, the second water inlet 123, the first water inlet 133, the water inlet side 131, the water outlet side 132, the first water outlet 134, the second water outlet 124 and the water outlet channel to cool the bottle cap product. In addition, a cooling flow channel can be arranged on the periphery of the front mold cavity 32 to enhance the cooling of the bottle cap product.

Specifically, the core bottom plate 11 is provided with a containing groove, the first core 12 is inserted into the containing groove, a pressing block 16 is fixed at the top end of the core bottom plate 11, the first core 12 is provided with a groove for the pressing block 16 to extend into and press against, and the pressing block 16 presses and fixes the first core 12 on the core bottom plate 11; first core 12 and second core 13 are connected through locking pin 17 fixed connection, and this locking pin 17's position corresponds with briquetting 16's position, and one side portion of briquetting 16 supports and presses in a terminal surface of locking pin 17, and the other end of locking pin 17 passes first core 12 fixed connection in second core 13, makes briquetting 16's a side portion restriction locking pin 17 produce lateral displacement, and then prevents it to deviate from second core 13. In order to adapt the second core 13 to caps of different heights, an adjusting pad 18 is provided between the second core 13 and the core bottom plate 11 to change the distance between the top of the second core 13 and the top of the first core 12. In order to prevent the first core 12 from rotating relative to the receiving groove, a connecting pin 19 is provided to connect the first core 12 and the side wall of the receiving groove, and preferably, the connecting pin 19 is located below the pressing block 16. For convenience of processing, the limiting pin 15, the locking pin 17 and the connecting pin 19 are all in a cylindrical structure.

Based on the core assembly disclosed in the above embodiment, the present embodiment also discloses a molding assembly, which comprises the push plate assembly 2 and the above core assembly 1, wherein the push plate assembly 2 is located at one end of the core assembly 1. Specifically, the push plate assembly 2 comprises a push plate 21 and a push sleeve 22, the push sleeve 22 is fixedly mounted on the push plate 21, and the push sleeve 22 is sleeved on the periphery of the first mold core 12; said sleeve 22 defines at least part of the annular surface of the open end of the closure; when the bottle cap is a folded bottle cap, the ring surface is the end surface of the anti-theft ring of the bottle cap, and the end surface is connected with the anti-theft blade; when the bottle cap is in a straight step shape, the ring surface is the end surface of the end part of the bottle cap main body, and the end surface is connected with the anti-theft ring through the connecting bridge; when the bottle cap is straight and has no step, the ring surface is part of the end surface of the anti-theft ring, in particular to the part of the end surface close to the outer side. And the embodiment shown in the attached figures in the specification is a folded-edge bottle cap. One end of the limiting pin 15 of the core assembly 1, which extends out of the limiting groove 121, is movably connected with the push sleeve 22. The inner wall of the push sleeve 22 is provided with an axial receiving groove 221, the receiving groove 221 extends in the opposite direction from the lower end surface of the push sleeve 22, the end portion of the stopper pin 15 is received in the receiving groove 221, and the stopper pin 15 contacts the top of the receiving groove 221 and the bottom of the stopper groove 121 when the mold is closed. A limiting pin 15 used for connecting the push plate component 2 and the third core 14 is arranged in the limiting groove 121, one end of the limiting pin 15 penetrates through the limiting groove 121 to be fixedly connected with the third core 14, and the other end of the limiting pin 15 extends out of the limiting groove 121 to be movably connected with the push plate component 2.

Based on the forming assembly disclosed in the above embodiment, the embodiment further discloses a bottle cap mold, which comprises a front mold assembly 3 and the forming assembly, wherein the front mold assembly 3 and the forming assembly are matched to define a bottle cap cavity. The front mold assembly 3 comprises a front mold cavity plate 31, a front mold cavity 32 and a front mold insert 33; the front mold cavity 32 and the front mold insert 33 are coaxially installed in the front mold cavity plate 31 from the outside to the inside in sequence. Cooling channels 34 are provided between the front cavity plate 31, the front cavity 32 and the front mold insert 33. The front mold cavity 32 has a conical structure, the push sleeve 22 has a frustum matched with the conical structure, and the conical structure is matched with the frustum to improve the mold closing precision between the front mold assembly 3 and the molding assembly.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.

Claims

1. A mold core assembly, its characterized in that: the core assembly comprises a core base plate, a first core, a second core and a third core; the second core is inserted into the central cavity of the first core, and the first core and the second core are directly or indirectly fixed on the core bottom plate; the third core is axially movably mounted on the upper portions of the first and second cores, at least a portion of an outer wall of the third core is in contact with the first core, and at least a portion of an inner wall of the third core is in contact with the second core.

2. A core assembly according to claim 1, wherein: the first core is provided with an axial limiting groove, the limiting groove radially penetrates through the first core, a limiting pin used for connecting the push plate assembly and the third core is arranged in the limiting groove, one end of the limiting pin penetrates through the limiting groove and is fixedly connected with the third core, and the other end of the limiting pin extends out of the limiting groove.

3. A core assembly according to claim 1, wherein: the core bottom plate is provided with a containing groove, and the first core is inserted in the containing groove.

4. A core assembly according to claim 3, wherein: and a connecting pin is arranged between the first core and the side wall of the accommodating groove, and the first core and the core bottom plate are axially positioned through the connecting pin.

5. A core assembly according to claim 4, wherein: a pressing block is fixed at the top end of the core bottom plate, the first core is provided with a groove for the pressing block to extend into and abut against, and the pressing block presses and fixes the first core on the core bottom plate; the connecting pin is located below the pressing block.

6. A core assembly according to claim 5, wherein: the first mold core is fixedly connected with the second mold core through a locking pin, the locking pin is arranged at a position corresponding to that of the pressing block, one side of the pressing block abuts against one end face of the locking pin, and the other end of the locking pin penetrates through the first mold core and is fixedly connected with the second mold core.

7. A core assembly according to claim 1, wherein: the second mold core is provided with a cooling inner cavity, opposite slots are formed in the wall of the cooling inner cavity, water retaining pieces are inserted into the slots and divide the slots into a water inlet side and a water outlet side, and a passage adaptive to the flow of a cooling medium is reserved between the top ends of the water retaining pieces and the top surface of the cooling inner cavity, so that the water inlet side is communicated with the water outlet side.

8. A molding assembly, comprising: a core assembly as claimed in any one of claims 1 to 7 including a push sleeve mounted around the periphery of a first core of the core assembly, the push sleeve defining at least part of an annulus of an open end of the closure; and one end of the limiting pin of the core component, which extends out of the limiting groove, is movably connected with the push sleeve.

9. The molding assembly of claim 8, wherein: the inner wall of the push sleeve is provided with an axial containing groove, the containing groove extends reversely from the lower end face of the push sleeve, the end part of the limit pin is contained in the containing groove, and the limit pin is in contact with the top of the containing groove and the bottom of the limit groove of the core assembly when the mold is closed.

10. A bottle lid mould which characterized in that: comprising a front mould assembly and a moulding assembly according to claim 8 or 9, the front mould assembly cooperating with the moulding assembly to define a bottle cap cavity.