CN219405105U

CN219405105U - Forming die of easy-to-open cover groove elastomer

Info

Publication number: CN219405105U
Application number: CN202320763568.3U
Authority: CN
Inventors: 栗玉水
Original assignee: Shandong Mingguan Packaging Products Co ltd
Current assignee: Shandong Mingguan Packaging Products Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-07-25
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses a forming die of a groove elastomer of a pop-top cover. The fixed part is provided with a feed pipe which is connected with external feed equipment, and the bottom of the feed pipe is provided with a feed die head; a blanking gap is arranged between the feeding die head and the inner wall of the feeding pipe, and a stock gap is arranged between the upper end of the supporting table at the bottom end of the feeding die head and the bottom end surface of the feeding pipe; an adjusting device is arranged in the feed pipe and connected with the feed die head to adjust the storage gap between the feed die head and the bottom end surface of the feed pipe; a pushing pipe is sleeved outside the feeding pipe; the size of the material storage gap is adjusted through the adjustment procedure; after external feeding, an annular feeding area is temporarily formed on the storage gap, and then the TPE material is pushed into the groove of the easy-to-pull cover in an annular manner by pushing down the pushing pipe, and is extruded and shaped.

Description

Forming die of easy-to-open cover groove elastomer

Technical Field

The utility model belongs to the technical field of sealing of beer packaging covers, and particularly relates to a forming die of a groove elastomer of an easy-to-open cover.

Background

In the beer bottle packaging cover in the prior art, in order to realize sealing, a layer of sealing gasket is arranged on the inner side of the bottle cover, the sealing gasket is made of foaming glue, namely PVC, when the beer bottle packaging cover is formed, a layer of liquid sealing glue is injected into a groove on the inner side of the bottle cover through equipment, the sealing gasket is formed after foaming to be adhered to the bottom of the bottle cover, the sealing gasket is poor in stability to light and heat, hydrogen chloride is generated by decomposition, further automatic catalytic decomposition is carried out, discoloration is caused, physical and mechanical properties are also rapidly reduced, and a stabilizer is added in practical application to improve the stability to heat and light. Because of the addition of the stabilizer, toxic and harmful substances such as Phthalate (PAES), bisphenol A (BPA), primary aromatic amine and the like are generated, which is unfavorable for food; in addition, in the transportation and storage process of beer, the PVC sealing gasket is immersed in alcohol for a long time due to the fact that some harmful substances are immersed in the alcohol, so that the food safety risk is increased.

Aiming at various defects of the sealing gasket made of PVC materials in the prior art, the applicant improves the sealing gasket by adopting TPE materials to replace the PVC materials, but the improved forming process is to release the TPE materials to the center of the inside of the bottle cap shown in figure 1 in a point-like manner through a processing mode shown in figure 1, and compact the sheet-like forming inside the existing packaging cap by pressing down the whole of the equipment; however, when the material is released, the TPE material is discharged irregularly, and has deflection, when the die head presses the material, the thick or more material places flow more, and the less opposite material places flow less, so the following product defects can occur: 1. the sealing ring is not pressed to the edge, and the sealing ring outer ring is irregular, so that the sealing performance is poor; 2. for the easy-to-open cover, the sealing gasket is sheet-shaped, and when the pull ring is pulled open, the sheet-shaped sealing gasket is directly attached to the wine bottle mouth, so that wine cannot be taken out smoothly; 3. sheet-formed gaskets waste both material and complexity of use.

In summary, the technical problems to be solved in the present application are: 1. how to design a set of feeding mould to realize that the fluid material accurately falls into the groove of the beer bottle packaging cover and realize forming; 2. how to ensure the stability of the sealing ring during the integrated forming, and the formed sealing ring is thin, thick and uniform and has accurate size.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a forming die of a groove elastomer of a pop-top cover, which realizes fixed-point release and forming of a fluid material in the pop-top cover of a beer package by designing an assembly.

In order to achieve the technical purpose, the utility model adopts the following scheme: the forming die of the groove elastomer of the easy-to-draw cover is provided with a fixing part, a feed pipe is arranged on the fixing part and connected with external feeding equipment, a feed die head is arranged at the bottom of the feed pipe, and a supporting table is arranged at the bottom end of the feed die head; a blanking gap is arranged between the feeding die head and the inner wall of the feeding pipe, and a stock gap is arranged between the upper end of the supporting table and the bottom end surface of the feeding pipe; an adjusting device is arranged in the feed pipe and connected with the feed die head to adjust the storage gap between the feed die head and the bottom end surface of the feed pipe; the outside of the feed pipe is sleeved with a feed pushing pipe.

The top of fixed part be provided with flange, be provided with the counter bore on the flange, adjusting device run through the counter bore and be provided with the sealing member and realize sealedly in the counter bore.

The adjusting device is an adjusting screw, a threaded section at the bottom end of the adjusting screw is matched and fixed with a threaded hole on the feeding die, a positioning ring is arranged on the adjusting screw, and the positioning ring is matched with a limiting plate on the fixed disc to realize axial constraint.

The outer diameter of the feeding die head is in concave-convex fit with the inner wall of the feeding pipe; the blanking gap is a vertical groove body machined on the inner wall of the feeding pipe.

The outer wall of the feeding die head is provided with a guide bulge, and an annular stock gap is arranged between the bottom of the guide bulge and the supporting table.

A circle of pressurizing spring is arranged around the adjusting screw between the top of the feeding die head and the supporting plate at the bottom of the counter bore.

The supporting table is provided with a guide post, the pipe wall of the feed pipe is provided with a guide hole, and the guide hole is internally provided with a guide Kong Danhuang; the guide post is inserted into the guide hole to press the guide Kong Danhuang.

The material in the feeding pipe is made of TPE material.

The beneficial effects of the utility model are as follows: through the arrangement, the feeding pipe is arranged on the fixing part and is connected with external feeding equipment, and the feeding die head is arranged at the bottom of the feeding pipe; a blanking gap is arranged between the feeding die head and the inner wall of the feeding pipe, and a stock gap is arranged between the upper end of the supporting table at the bottom end of the feeding die head and the bottom end surface of the feeding pipe; an adjusting device is arranged in the feed pipe and connected with the feed die head to adjust the storage gap between the feed die head and the bottom end surface of the feed pipe; a pushing pipe is sleeved outside the feeding pipe; the size of the material storage gap is adjusted through the adjustment procedure; after external feeding, an annular feeding area is temporarily formed on the storage gap, and then the TPE material is pushed into the groove of the easy-to-pull cover in an annular manner by pushing down the pushing pipe, and is extruded and shaped. The device and the forming method have ingenious conception, can realize the one-time accurate forming of the elastic body in the easy-to-open cover, realize the forming of the annular elastic body while feeding, avoid the defects of uneven thickness, large contact surface with the wine body and easy fitting on the wine bottle mouth during sheet forming, reduce the production cost and eliminate the hidden danger of the sealing structure on food safety.

Drawings

FIG. 1 is a schematic perspective view of a lid;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic diagram I of a three-dimensional cross-sectional structure of the utility model;

FIG. 4 is a schematic view II of a three-dimensional cross-sectional structure of the utility model;

FIG. 5 is a schematic diagram of a feed die adjustment configuration I;

FIG. 6 is a schematic diagram II of a feed die adjustment configuration;

FIG. 7 is a schematic diagram III of a feed die adjustment configuration;

FIG. 8 is an enlarged schematic view of the structure of the area A in FIG. 3;

FIG. 9 is an enlarged schematic view of the structure of the area B in FIG. 4;

FIG. 10 is an enlarged schematic view of the structure of the area C in FIG. 7;

FIG. 11 is a schematic diagram I of the working state of the utility model;

FIG. 12 is a schematic diagram II of the working state of the present utility model;

FIG. 13 is a schematic view III of the working state of the present utility model;

FIG. 14 is a schematic view IV of the working state of the present utility model;

in the drawings, 1, a pop-up cover, 11, a pop-up cover groove, 12, an elastomer, 13, pvc materials, 2, a pushing part, 21, a pushing flange, 22, a pushing pipe, 3, a fixing part, 31, a fixing flange, 32, a feeding pipe, 33, a feeding connector, 34, a vertical groove body, 35, a supporting plate, 36, a guide hole, 4, a fixing disc, 41, a limiting plate, 5, an adjusting screw, 51, a thread section, 52, a positioning ring, 6, a feeding die head, 61, a supporting table, 62, a threaded hole, 63, a guide protrusion, 64, a spring gasket, 65, an annular storage gap, 66, a guide inclined plane, 67, a guide pillar, 7, a compression spring, 8, a sealant block, 81, a block extension, 9 and a guide Kong Danhuang.

Detailed Description

Referring to fig. 1, the forming mold and method of the groove elastomer are applied to the forming process of the elastomer 12 in the groove 11 of the easy-to-open cover of the beer package shown in fig. 1.

The utility model discloses a forming die of a groove elastomer of a pop-top cover, which can be called a tool, and the purpose of the forming die can be summarized as follows: feeding into the lid groove 11 by means of an external driving force and extrusion molding or preliminary molding of the elastic body 12 are achieved.

The device comprises a fixing part 3, wherein the fixing part 3 comprises a fixing flange 31, a feed pipe 32 and a feed joint 33 are arranged at the lower part of the fixing flange 31, and a supporting plate 35 is arranged at the center of the fixing flange 31; the feed connection 33 is connected to an external feed device, here typically a melt extruder;

the bottom of the feed pipe 32 is provided with a feed die head 6, and the feed die head 6 is fixed and adjusted as follows: an adjusting device is arranged in the feed pipe 32 and connected with the feed die head 6 to adjust the stock gap between the feed die head 6 and the bottom end surface of the feed pipe 32; the adjusting device is an adjusting screw 5, the threaded section 51 at the bottom end of the adjusting screw 5 is matched and fixed with the threaded hole 62 on the feeding die head 6, but it should be noted that when the feeding die head 6 is axially adjusted by the adjusting screw 5, the movement between the adjusting screw 5 and the feeding die head 6 is opposite, and in order to realize the axial driving adjustment of the feeding die head 6, the adjusting screw 5 must be restrained to rotate in situ.

When the adjusting screw 5 penetrates into the feeding pipe 32, the feeding pipe 32 is filled with materials in a working state, and the joint of the adjusting screw 5 and the fixed flange 31 needs to be sealed to prevent leakage of the materials.

The bottom end of the feeding die head 6 is provided with a supporting table 61; a blanking gap is arranged between the feeding die head 6 and the inner wall of the feeding pipe 32, and a stock gap is arranged between the upper end of the supporting table 61 and the bottom end surface of the feeding pipe 32.

The blanking gap described above may be achieved by machining a vertical groove 34 in the inner wall of the feed tube 32, which may be used to guide the material in the feed tube 32 into the stock gap. The outer part of the feed pipe 32 is sleeved with a feed pipe 22, the gap between the feed pipe 32 and the feed pipe 22 is 0.05-0.1 mm, the size can facilitate the feed pipe 22 to cut off materials in a cutting state and push the materials downwards, and the feed pipe 22 is positioned at the lower part of the feed pushing part 2 and is integrally arranged with the feed pushing flange 21; the pushing flange 21 is connected with an external driving device.

The device can feed and mold the elastic body 12 in the easy-open cover groove 11 through the structure and the combination method.

In this embodiment, the molding of the groove elastomer of the pop-top cover for beer packaging can be achieved by the above molding die, which specifically includes the following steps:

heating a melting extruder to 140-210 ℃ to enable TPE materials to be melted and extruded into a shape under the pressure of 2-4 megapascals;

in the adjustment process, as shown in fig. 11, the device realizes the up-down adjustment of the feeding die head 6 by screwing the adjusting screw 5, in the adjustment process, in order to prevent the feeding die head 6 from swinging radially in the feeding pipe 32, three guide protrusions 63 are arranged on the outer wall of the feeding die head 6, and an annular storage gap 65 is formed between the bottom of the guide protrusions 63 and the supporting table 61. In this embodiment, the forming of the annular stock gap 65 is achieved by removing material at the joint of the three guide protrusions 63 and the support table 61, so as to promote the material to circulate around the support table 61 and prevent the non-uniformity in annular feeding. Six vertical groove bodies 34 are arranged on the inner wall of the feed pipe 32 corresponding to the three guide protrusions 63, wherein the three vertical groove bodies 34 are in concave-convex fit with the three guide protrusions 63 on the outer diameter of the feed die head 6; the remaining three vertical slots 34 serve as blanking gaps to enable the fluid material to flow downwards. The vertical groove 34 as a blanking gap is arranged at intervals with the vertical groove 34 with guiding function.

In order to prevent the axial swing of the adjusting screw 5 from affecting the adjusting precision during adjustment, the device realizes axial constraint in the following way, the top of the feeding die head 6 is provided with a spring gasket 64, and a circle of pressurizing spring 7 is arranged around the adjusting screw 5 between the spring gasket 64 and the supporting plate 35. The pressurizing spring 7 always gives downward pushing force to the feeding die head 6, so that the adjusting screw 5 is prevented from being deflected upwards.

On the basis of the above adjusting structure and the guiding structure, the device also provides a second guiding and axial restraining structure, as shown in fig. 6, 7 and 10, three guide posts 67 are arranged on the supporting table 61, three guiding holes 36 are correspondingly arranged on the pipe wall of the feeding pipe 32, and guiding Kong Danhuang 9 are arranged in the three guiding holes 36; the guide post 67 is inserted into the guide hole 36 to press the guide hole spring 9. The structure has the advantage of effectively avoiding the influence of the molten material on the compression performance of the spring.

The device realizes the size adjustment of the material storage gap or the annular material storage gap 65 between the feeding die head 6 and the bottom end surface of the feeding pipe 32 by adjusting the relative position of the feeding die head 6 in the feeding pipe 32; the adjustment is carried out according to different material amounts, the adjustment is carried out at the initial operation stage of the production equipment, and the continuous operation is not required to be carried out for the second time after the adjustment is finished;

a feeding step of feeding the fluid material into the feed pipe 32 through the melt extruder to the external feed joint 33 as shown in fig. 12; the materials enter the annular material storage gap 65 through the three vertical groove bodies 34 and are temporarily stored on the upper end surface of the supporting table; if the device adopts three guide posts 67 as guiding devices, three vertical grooves 34 are processed in the feed pipe 32 and serve as fluid flow channels for guiding materials.

13 and 14, setting feeding time length of single feeding through an external control system, and pushing the material into the easy-to-pull cover groove 11 by pressing the material pushing pipe 22 downwards and extruding and shaping when the material in the annular storage gap 65 reaches a certain amount; the driving force of the pushing tube 22 comes from the pushing flange 21, and the pushing flange 21 is connected with an external driving device.

The material in the embodiment of the utility model adopts TPE material, and the material shows high elasticity of rubber at normal temperature and can plasticize and form high polymer material (vulcanization is not needed) at high temperature. TPE is nontoxic, has no bisphenol A (BPA), has no phthalate PAES, has no polycyclic aromatic hydrocarbon PAHS, has no nonylphenol NP, and is a world-recognized standard environment-friendly material.

The device has ingenious conception, can realize the one-time accurate molding of the elastic body in the easy-to-open cover, realizes the molding of the annular elastic body while feeding and molding, avoids the defects of uneven thickness and large contact surface with the wine body during sheet molding, reduces the production cost and eliminates the hidden danger of a sealing structure on food safety.

Claims

1. The utility model provides a forming die of easy-to-draw lid slot elastomer which characterized in that: the feeding device is provided with a fixing part, a feeding pipe is arranged on the fixing part and connected with external feeding equipment, a feeding die head is arranged at the bottom of the feeding pipe, and a supporting table is arranged at the bottom end of the feeding die head; a blanking gap is arranged between the feeding die head and the inner wall of the feeding pipe, and a stock gap is arranged between the upper end of the supporting table and the bottom end surface of the feeding pipe; an adjusting device is arranged in the feed pipe and connected with the feed die head to adjust the storage gap between the feed die head and the bottom end surface of the feed pipe; the outside of the feed pipe is sleeved with a feed pushing pipe.

2. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: the top of fixed part be provided with flange, be provided with the counter bore on the flange, adjusting device run through the counter bore and be provided with the sealing member in the counter bore.

3. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: the adjusting device is an adjusting screw, a threaded section at the bottom end of the adjusting screw is matched and fixed with a threaded hole on the feeding die, a positioning ring is arranged on the adjusting screw, and the positioning ring is matched with a limiting plate on the fixed disc to realize axial constraint.

4. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: the outer diameter of the feeding die head is in concave-convex fit with the inner wall of the feeding pipe; the blanking gap is a vertical groove body machined on the inner wall of the feeding pipe.

5. The forming die for a trench elastomer for a flip cover of claim 4, wherein: the outer wall of the feeding die head is provided with a guide bulge, and an annular stock gap is arranged between the bottom of the guide bulge and the supporting table.

6. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: a circle of pressurizing spring is arranged around the adjusting screw between the top of the feeding die head and the supporting plate at the bottom of the counter bore.

7. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: the supporting table is provided with a guide post, the pipe wall of the feed pipe is provided with a guide hole, and the guide hole is internally provided with a guide Kong Danhuang; the guide post is inserted into the guide hole to press the guide Kong Danhuang.

8. A forming die for a trench elastomer for a flip top as claimed in claim 1, wherein: the material in the feed pipe adopts TPE material.