CN115214961A - Bottle blank structure convenient for demolding and production process thereof - Google Patents
Bottle blank structure convenient for demolding and production process thereof Download PDFInfo
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- CN115214961A CN115214961A CN202210611994.5A CN202210611994A CN115214961A CN 115214961 A CN115214961 A CN 115214961A CN 202210611994 A CN202210611994 A CN 202210611994A CN 115214961 A CN115214961 A CN 115214961A
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- bottle
- blank
- thin
- groove
- wall
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/70—Removing or ejecting blown articles from the mould
Abstract
The invention provides a bottle blank structure convenient for demoulding and a production process thereof, wherein the bottle blank structure comprises a bottle blank body in a shape of a test tube, the bottle blank body consists of a blank opening, a blank neck, a blank body and a blank bottom, the blank neck, the blank body and the blank bottom enclose an air flow cavity, the bottle blank body can be embedded into an external forming die, the blank opening is opposite to an external bottle blowing opening under the condition that the bottle blank body is embedded into the forming die, the inner side wall of the blank opening is provided with a groove, the bottle blank body is deformed into a thin-wall beverage bottle under the condition that bottle blowing operation is completed, the groove forms a demoulding groove, the shape of the end part of an external manipulator is matched with the shape of the demoulding groove, and the end part of the manipulator can be clamped with the demoulding groove. The invention is used for demoulding the thin-wall beverage bottle with smooth surface.
Description
Technical Field
The invention relates to the technical field of bottle blank structures convenient for demolding, and mainly relates to a bottle blank structure convenient for demolding and a production process thereof.
Background
With the continuous iteration of the structure of the beverage bottle, beverage bottle manufacturers need to continuously invest cost to research and develop lightweight and low-cost beverage bottles in order to seize the market, and beverage bottle manufacturers usually use PS materials to manufacture thin-wall beverage bottles in order to make the beverage bottles manufactured by the beverage bottle manufacturers meet the requirements of lightweight and low cost, but the thin-wall beverage bottles manufactured by PS materials are not easy to store and transport.
In addition, in order to realize the light weight characteristic of the beverage bottle, the existing beverage bottle manufacturing enterprises realize the forming process of the beverage bottle by blowing the bottle blank, and after the bottle blank is blown, the operation of demoulding the formed beverage bottle is needed, and in order to facilitate demoulding, the existing beverage bottle manufacturing enterprises generally can be provided with a plurality of reinforcing ribs and other structures on the outer wall of the bottle blank to increase the friction force, so as to facilitate the clamping and demoulding of subsequent manipulators.
However, after the bottle blank structure finishes the bottle blowing operation, the bottle body of the formed beverage bottle has a plurality of protrusions, and the thin-wall beverage bottle with a smooth surface is difficult to manufacture by using the bottle blank. In addition, in the face of a thin-wall beverage bottle with a smooth surface, if a mechanical arm is used for clamping and demolding, the clamping force of the mechanical arm needs to be strictly controlled, because once the clamping force of the mechanical arm is too small, demolding of the beverage bottle is difficult to realize, and when the clamping force is too large, the situation that the mechanical arm crushes the thin-wall beverage bottle is easy to occur, and the clamping force of the mechanical arm is difficult to accurately adjust, so that the reject ratio of the product is increased, and the defect needs to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a bottle blank structure convenient for demoulding and a production process thereof, which can be used for demoulding a thin-wall beverage bottle with a smooth surface.
Therefore, the bottle blank structure convenient for demolding is provided, which comprises a bottle blank body, wherein the bottle blank body consists of a blank opening, a blank neck, a blank body and a blank bottom, the bottle blank body is in a tube-shaped structure, the blank neck, the blank body and the blank bottom enclose a gas flow cavity, the bottle blank body can be embedded into an external forming die, under the condition that the bottle blank body is embedded into the forming die, the blank opening is opposite to an external bottle blowing opening,
the inner side wall of the blank opening is provided with a groove, an included angle is formed between the top surface and the side surface of the groove, and the included angle is changed into a clamping hook part which can be hooked by an external manipulator under the condition that bottle blowing operation causes the bottle blank body to be deformed into a thin-wall beverage bottle.
Further, the groove is annular and is arranged on the inner side wall of the blank opening.
Further, the outer side wall of the blank opening is also provided with a clamping groove for clamping an external manipulator.
Further, the clamping groove is annular and is arranged on the outer side wall of the blank opening.
Further, a vertical projection of the groove is above a vertical projection of the clamping groove.
Further, the blank opening, the blank neck, the blank body and the blank bottom are integrally formed by PET plastics in a compression molding mode to form the bottle blank body.
Furthermore, the connection part of the bottom surface of the groove and the side wall of the groove is provided with chamfers, and the angle between the two chamfers is 90 degrees.
Furthermore, the thickness of the embryo body is consistent with that of the embryo bottom, the thickness of the embryo neck is gradually reduced towards the direction of the embryo opening, and the thickness of the embryo opening is smaller than that of the embryo neck.
Further, the thickness ratio of the embryo mouth, the embryo neck, the embryo body and the embryo bottom is 1.
A production process is suitable for manufacturing the bottle blank structure convenient for demoulding, an external forming film comprises a front die and a rear die which are oppositely pressed to form a forming cavity, the structure of the forming cavity is matched with the outer wall structure of a thin-wall beverage bottle, the contact area of the front die and the thin-wall beverage bottle is smaller than that of the rear die and the thin-wall beverage bottle,
in the process of forming the thin-wall beverage bottle, the external mechanical arm is embedded into the clamping groove to clamp the bottle blank body until the bottle blank body is placed into the forming cavity of the forming die, the blank opening is placed close to the opening of the forming cavity, the external bottle blowing opening is embedded into the opening of the forming cavity and blows the blank opening, the blown gas flows in the gas cavity, and the bottle blank body expands until the outer wall of the bottle blank body is attached to the surface of the forming cavity, so that the thin-wall beverage bottle is formed;
in the process of demoulding the thin-wall beverage bottle, the front mould is separated from the rear mould, the thin-wall beverage bottle is clamped in the rear mould, and the end part of the external manipulator is embedded into the bottle mouth of the thin-wall beverage bottle to be clamped with the demoulding groove, so that the thin-wall beverage bottle is separated from the rear mould.
Further, in the process of forming the thin-wall beverage bottle, the opening distance of the mechanical arm is greater than the diameter of the clamping groove; in the process of demoulding the thin-wall beverage bottle, the opening distance of the manipulator is smaller than the diameter of the bottle mouth of the thin-wall beverage bottle, and under the condition that the end part of the manipulator is embedded into the demoulding groove, the manipulator is opened until the end part of the manipulator abuts against the bottom surface or the side wall of the demoulding groove.
Has the advantages that:
according to the bottle blank structure convenient for demolding, the annular groove is formed in the inner side wall of the blank opening of the bottle blank body, after bottle blowing operation is finished, the blank opening deforms to form the inner wall of the bottle opening, the groove forms the demolding groove, the end part of the external manipulator is matched with the shape of the clamping hook part in the demolding groove, and due to the fact that the size of the bottle opening of the thin-wall beverage bottle is fixed and the size of the demolding groove is also fixed, clamping force of the manipulator does not need to be adjusted in a complex mode, only the opening angle of the manipulator after the manipulator stretches into the bottle opening needs to be set, the end part of the manipulator is controlled to be embedded into the demolding groove, the end part of the manipulator can be guaranteed to be clamped with the clamping hook part, accordingly demolding can be conducted on the thin-wall beverage bottle, and damage to the thin-wall beverage bottle in the demolding process is reduced.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a cross-sectional view of a bottle preform construction of the present invention to facilitate demolding thereof;
FIG. 2 is an enlarged view of a portion of A in FIG. 1;
fig. 3 shows the structure of the thin wall beverage bottle after molding.
Description of reference numerals: 1-embryo mouth; 2-embryonic neck; 3-embryo body; 4-embryonic bottom; 5-a demoulding groove; 6-waist part; 11-a groove; 12-a clamping groove; 51-a hook section.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1 and 2, the bottle blank structure convenient for demolding in this embodiment includes a bottle blank body in a shape of a test tube, where the bottle blank body includes a blank opening 1, a blank neck 2, a blank body 3, and a blank bottom 4, the blank neck 2, the blank body 3, and the blank bottom 4 enclose an air flow cavity, the bottle blank body may be embedded in an external forming die, the blank opening 1 is opposite to an external bottle blowing opening in a case that the bottle blank body is embedded in the forming die, a groove 11 is formed in an inner side wall of the blank opening 1, an included angle is formed on a top surface and a side surface of the groove 11, the included angle becomes a hook portion 51 capable of being hooked by an external manipulator in a case that the bottle blowing operation causes the bottle blank body to be deformed into a thin-walled beverage bottle, and in a case that a bottle blowing operation is completed, as shown in fig. 3, the groove 11 forms a demolding groove 5, a shape of an end portion of the external manipulator is adapted to a shape of the hook portion 51 in the demolding groove 5, and an end portion of the manipulator can be clamped to the hook portion of the hook portion 51 in the demolding groove 5. Through being provided with an annular recess 11 at the 1 inside wall of the primary opening of bottle embryo body, after the bottle blowing operation, the deformation of primary opening 1 forms the inner wall of bottleneck, recess 11 forms drawing of patterns groove 5, the tip of outside manipulator and drawing of patterns groove 5 in the shape looks adaptation of clamping hook portion 51, because the bottleneck size of thin wall beverage bottle is fixed, and the size of drawing of patterns groove 5 is also fixed, so do not need the centre gripping dynamics of adjusting the manipulator tediously, only need set up the opening angle of manipulator after stretching into the bottleneck, the tip embedding drawing of control manipulator is in drawing of patterns groove 5, just can guarantee that the tip of manipulator can with clamping hook portion 51 joint, and then can demold the thin wall beverage bottle, reduce the damage of thin wall beverage bottle in drawing of patterns process.
In order to guarantee that the end part of the manipulator can be embedded into the demoulding groove 5, the groove 11 is annular and is arranged on the inner side wall of the blank opening 1, so that after the groove 11 is deformed into the demoulding groove 5, the area of the demoulding groove 5 can be guaranteed to be large enough, and the situation that the manipulator cannot be embedded into the demoulding groove 5 is avoided.
In order to avoid changing the existing forming equipment and save the manufacturing cost, the outer side wall of the blank port 1 is also provided with a clamping groove 12 for clamping an external mechanical arm, the inner side wall of the mechanical arm is embedded into the clamping groove 12 to be clamped, at the moment, because the mechanical arm clamps the unmolded bottle blank, even if the clamping force of the mechanical arm is not accurate enough, the clamping groove 12 of the bottle blank is slightly deformed, the structure of the thin-wall beverage bottle after forming cannot be influenced, and the reject ratio of the product cannot be improved.
In order to ensure that the inner side wall of the manipulator can be embedded into the end part of the clamping groove 12, the clamping groove 12 is annular and is arranged on the outer side wall of the blank opening 1, and the annular clamping groove 12 increases the clamping area of the manipulator and ensures that the bottle blank body can be clamped.
The connecting parts of the bottom surface of the groove 11 and the side walls of the groove are provided with chamfers, and the angle between the two chamfers is 90 degrees, so that the chamfers on the top surface of the groove 11 can be conveniently formed into the hook part 51 in the bottle blowing process of a bottle blank, the chamfers on the bottom surface of the groove 11 and the waist part 6 of the thin-wall beverage bottle formed by the clamping groove 12 can be smoothly connected, the inner wall of the thin-wall beverage bottle is smooth, the surfaces of the inner wall and the outer wall of the thin-wall beverage bottle are smooth, and the demoulding groove 5 formed by bottle blowing and the inner wall of the thin-wall product are more smoothly connected.
If the vertical projections of the two grooves are on the same straight line, the mechanical arm may cause the deformation of the groove 11 in the process of clamping the clamping groove 12 and is not beneficial to the forming of the subsequent demoulding groove 5, if the vertical projection of the clamping groove 12 is above the vertical projection of the groove 11, the mechanical arm may cause the deformation of the blank mouth 1 in the process of clamping the clamping groove 12, the deformation of the blank mouth 1 may cause the uneven thickness of the formed thin-wall beverage bottle, and therefore, the vertical projection of the groove 11 is above the vertical projection of the clamping groove 12, and the problems can be avoided.
The blank opening 1, the blank neck 2, the blank body 3 and the blank bottom 4 are integrally formed by PET plastics through compression molding to form a bottle blank body, so that PS plastics can be avoided being used, and the manufactured thin-wall beverage bottle has the effects of light weight and strong toughness.
The thickness of the blank body 3 is consistent with that of the blank bottom 4, the thickness of the blank neck 2 is gradually reduced towards the blank opening 1, the thickness of the blank opening 1 is smaller than that of the blank neck 2, the arrangement is convenient for uniform forming of the thin-wall beverage bottle, and the relative thickness is larger because the volume of the formed thin-wall beverage bottle body and the bottom is larger.
In order to ensure that the thin-wall beverage bottle can be molded uniformly, the thickness of the blank opening 1 is 0.85cm, the thickness of the blank neck 2 is 1.07cm, the thickness of the blank body 3 is 2cm, the thickness of the blank bottom 4 is 2cm, and the thickness ratio of the four is 1.
A production process is suitable for manufacturing the bottle blank structure convenient for demoulding, an external forming film comprises a front die and a rear die which are oppositely pressed to form a forming cavity, the structure of the forming cavity is matched with the outer wall structure of a thin-wall beverage bottle, the contact area of the front die and the thin-wall beverage bottle is smaller than that of the rear die and the thin-wall beverage bottle,
in the process of forming the thin-wall beverage bottle, an external mechanical arm is embedded into the clamping groove 12 to clamp the bottle blank body until the bottle blank body is placed into a forming cavity of a forming die, a blank opening 1 is placed close to an opening of the forming cavity, an external bottle blowing opening is embedded into the opening of the forming cavity and blows the blank opening 1, the blown gas flows in a gas cavity, and the bottle blank body expands until the outer wall of the bottle blank body is attached to the surface of the forming cavity, so that the thin-wall beverage bottle is formed;
in the process of demoulding the thin-wall beverage bottle, the front mould is separated from the rear mould, the thin-wall beverage bottle is clamped in the rear mould, and the end part of the external manipulator is embedded into the bottle mouth of the thin-wall beverage bottle to be clamped with the demoulding groove 5, so that the thin-wall beverage bottle is separated from the rear mould.
In order to avoid changing mechanical equipment and reducing production cost, the opening distance of the mechanical arm is greater than the diameter of the clamping groove 12 in the process of forming the thin-wall beverage bottle; in the process of demoulding the thin-wall beverage bottle, the opening distance of the manipulator is smaller than the diameter of the bottle mouth of the thin-wall beverage bottle, and under the condition that the end part of the manipulator is embedded into the demoulding groove 5, the manipulator is opened until the end part of the manipulator is abutted against the bottom surface or the side wall of the demoulding groove 5. Therefore, the bottle blowing process can be realized only by adjusting the moving track and the opening distance of the manipulator, and the clamping force requirement of the manipulator is not strict by the adjusting mode, so that the production process in the embodiment can be suitable for new bottle blowing equipment or old bottle blowing equipment, and the production cost is reduced as much as possible.
The bottle blowing operation is a conventional bottle blowing operation, which necessarily includes a step of heating and forming, and is not described herein again. The device does not need to change the equipment used in bottle blowing operation, only needs to adjust the opening angle or the opening distance of the existing manipulator, does not need to adjust the clamping force of the manipulator, reduces the debugging time for technicians to debug the clamping force of the manipulator, does not need to change the structure of the equipment, and greatly reduces the production cost of beverage bottle manufacturers.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a bottle embryo structure convenient to drawing of patterns, its is including being the bottle embryo body of test tube form, the bottle embryo body comprises embryo mouth, embryo neck, embryo body, embryo end, and embryo neck, embryo body, embryo end enclose into the gas flow chamber, and the bottle embryo body can imbed in outside moulded die, under the circumstances of bottle embryo body embedding moulded die, the opposition of embryo mouth and outside bottle blowing mouth, its characterized in that:
the inner side wall of the blank opening is provided with a groove, an included angle is formed between the top surface and the side surface of the groove, and the included angle is changed into a clamping hook part which can be hooked by an external manipulator under the condition that bottle blowing operation causes the bottle blank body to be deformed into a thin-wall beverage bottle.
2. The bottle embryo structure for facilitating the mold release of claim 1, wherein the groove is ring-shaped and disposed on the inner sidewall of the embryo opening.
3. The bottle blank structure convenient for demolding as claimed in claim 2, wherein the outer side wall of the blank opening is further provided with a clamping groove for clamping by an external manipulator.
4. The structure of claim 3, wherein the clamping groove is annular and disposed on an outer sidewall of the blank opening.
5. The bottle blank structure for facilitating demolding as claimed in claim 4, wherein a vertical projection of the groove is above a vertical projection of the clamping groove.
6. The bottle blank structure convenient for demolding as claimed in claim 3, wherein the blank mouth, the blank neck, the blank body and the blank bottom are formed by integrally compression-molding PET plastic into the bottle blank body.
7. The bottle blank structure facilitating demolding as claimed in claim 3, wherein the blank body is consistent with the blank bottom in thickness, the thickness of the blank neck is gradually reduced towards the blank opening, and the thickness of the blank opening is smaller than that of the blank neck.
8. The bottle blank structure convenient for demolding as claimed in claim 3, wherein the connecting portions of the bottom surface and the side walls of the groove are provided with chamfers, and the angle between the chamfers is 90 degrees.
9. A production process suitable for making a bottle blank structure convenient for demoulding according to any one of the claims 3 to 8, wherein the outer forming film comprises a front die and a rear die which are oppositely pressed and form a forming cavity, the forming cavity is matched with the outer wall structure of the thin-wall beverage bottle, the contact area of the front die and the thin-wall beverage bottle is smaller than that of the rear die and the thin-wall beverage bottle,
in the process of forming the thin-wall beverage bottle, an external mechanical arm is embedded into a clamping groove to clamp the bottle blank body, the bottle blank body is placed into a forming cavity of a forming die, a blank opening is placed close to an opening of the forming cavity, an external bottle blowing opening is embedded into the opening of the forming cavity and blows air to the blank opening, the blown air flows in an air cavity, and the bottle blank body expands until the outer wall of the bottle blank body is attached to the surface of the forming cavity, so that the thin-wall beverage bottle is formed;
in the process of demoulding the thin-wall beverage bottle, the front mould is separated from the rear mould, the thin-wall beverage bottle is clamped in the rear mould, and the end part of the external mechanical arm is embedded into the bottle mouth of the thin-wall beverage bottle to be clamped with the demoulding groove, so that the thin-wall beverage bottle is separated from the rear mould.
10. The process according to claim 9, wherein during the forming of the thin-walled beverage bottle, the opening distance of the robot arm is greater than the diameter of the holding groove; in the process of demoulding the thin-wall beverage bottle, the opening distance of the manipulator is smaller than the diameter of the bottle mouth of the thin-wall beverage bottle, and under the condition that the end part of the manipulator is embedded into the demoulding groove, the manipulator is opened until the end part of the manipulator abuts against the bottom surface or the side wall of the demoulding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611994.5A CN115214961A (en) | 2022-05-31 | 2022-05-31 | Bottle blank structure convenient for demolding and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611994.5A CN115214961A (en) | 2022-05-31 | 2022-05-31 | Bottle blank structure convenient for demolding and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115214961A true CN115214961A (en) | 2022-10-21 |
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ID=83608294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210611994.5A Pending CN115214961A (en) | 2022-05-31 | 2022-05-31 | Bottle blank structure convenient for demolding and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115214961A (en) |
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2022
- 2022-05-31 CN CN202210611994.5A patent/CN115214961A/en active Pending
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