CN218134590U - Prefabricated member structure for forming pull ring cover - Google Patents

Abstract

The utility model provides a prefab structure for shaping pull ring lid, including this somatic part and the edge portion that sticks up that outwards extends and form from one side of this somatic part, this somatic part is used for the lid body of stretch forming pull ring lid, sticks up the edge that edge portion is used for stretch forming pull ring lid, is equipped with the scale groove of uncapping on this somatic part, and this somatic part and the handing-over department side of edge portion of sticking up open notch in the tensile buffering that has the indent, and the scale groove of uncapping stretches to this somatic part from tensile buffering indent mouth.

Description

Prefabricated member structure for forming pull ring cover

Technical Field

The utility model relates to a product processing technology field, in particular to prefab structure for shaping snap ring lid.

Background

The existing pull ring cover generally comprises a metal cover body and a plastic pull ring, wherein the metal cover body comprises a circular cover wall and a cylindrical side wall, a raised edge outwards extends from one side of the cylindrical side wall, and the plastic pull ring is formed on the raised edge through injection molding. Be equipped with the incision groove of uncapping on the metal covering body, this incision groove of uncapping stretches to the circular lid wall of metal covering body from the handing-over department side of sticking up limit and tube-shape lateral wall, and the handheld plastic pull ring pulling of user sticks up the limit and just can tear the metal covering body along the incision groove of uncapping, realizes uncapping.

In the process of producing the pull ring cover, a prefabricated part structure with a raised edge is punched from a metal plate, then the prefabricated part structure is stretched, the edge part of the prefabricated part structure is bent into a cylindrical side wall of the cover body, the center part of the prefabricated part structure is used as a circular cover wall of the cover body, and the metal cover body is obtained. The edge part of the prefabricated part structure can be extruded by the prefabricated part structure in the process of bending the prefabricated part structure into the cylindrical side wall, so that the cylindrical side wall is folded, and the product quality of the pull ring cover is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is how to avoid the tube-shape lateral wall of ring pull lid fold to appear at stretch forming's in-process.

In order to solve the technical problem, the utility model provides a prefab structure for shaping pull ring lid, include this somatic part and follow the portion of sticking up the limit that one side of this somatic part outwards extended and formed, this somatic part is used for the lid body of stretch forming pull ring lid, stick up the limit that the limit portion is used for stretch forming pull ring lid, be equipped with the incision groove of uncapping on this somatic part, this somatic part with the handing-over department side of sticking up the limit portion is opened and is had notch in the tensile buffering of indent, the incision groove of uncapping is followed notch stretches to in the tensile buffering this somatic part.

Preferably, the stretching buffer inner notch is wrapped and clamped by a first side edge and a second side edge, the first side edge is positioned on the body portion, the second side edge is positioned on the edge tilting portion, and the included angle between the first side edge and the second side edge is an obtuse angle.

Preferably, two concave stretching buffer inner notches are formed on two sides of the joint of the body part and the raised part respectively, two cover opening notch grooves are formed, and each cover opening notch groove extends into the body part from the corresponding stretching buffer inner notch.

Preferably, the main body profile has an arc shape, the open-lid score line groove has a linear front section and a circular rear section that conforms to the main body profile.

Preferably, the structure of the prefabricated member is made of aluminum.

The utility model discloses following beneficial effect has: in-process at production ring pull lid, the user utilizes the mould right the utility model provides a prefab structure carries out 2D profile shaping earlier, later carry out 3D and stretch, the tube-shape lateral wall that makes the edge part of this somatic part bend into the lid body, and the central point of this somatic part is as the circular lid wall of lid body, because this somatic part of prefab structure and the handing-over department side of perk limit portion open notch in the tensile buffering that has the indent, so at tensile in-process, thereby the edge part of this somatic part can receive self extrusion and press to notch in the tensile buffering, self extrusion force that the edge part of this somatic part received in-process has obtained slowing down, avoid bending the tube-shape lateral wall that forms by the edge part of this somatic part excessively to extrude and appear the fold.

Drawings

FIG. 1 is a schematic view of a preform structure for forming a pull ring cap;

FIG. 2 is a top plan view of a preform structure for forming the pull ring cap;

FIG. 3 is a schematic illustration of a die-cutting process for forming a preform structure for a pull-ring cap;

FIG. 4 is a schematic view of the cap body of the pull ring cap;

fig. 5 is a schematic view of a pull ring cap.

Description of the reference numerals: 1-a body portion; 11-a lid body; 12-plastic pull ring; 111-circular lid wall; 112-cylindrical side wall; 113-edge warping; 2-edge warping; 3-opening the cover to carve the slot; 4-stretching the buffer inner notch; 41-a first side; 42-a second side edge; 5-sealing gasket.

Detailed Description

The invention is described in further detail below with reference to specific embodiments.

The ring-pulling cover is shown in fig. 5, including lid body 11 and plastic pull ring 12, lid body 11 includes circular lid wall 111 and tube-shape lateral wall 112, one side of tube-shape lateral wall 112 outwards stretches out has warped limit 113, plastic pull ring 12 injection moulding is on this warped limit 113, paste a sealed pad 5 in the circular lid wall 111, warped limit 113 and tube-shape lateral wall 112's handing-over department both sides respectively open notch 4 in having a tensile buffering, be equipped with two uncapping score grooves 3 in the lid body 11, two uncapping score grooves 3 are stretched to the circular lid wall 111 of lid body 11 from warped limit 113 and tube-shape lateral wall 112's handing-over department both sides respectively, namely, every uncapping score groove 3 stretches to the circular lid wall 111 of lid body 11 from corresponding tensile buffering in notch 4, the user holds plastic pull ring 12 and pulls warped limit 113 and just can tear the lid body 11 along uncapping score groove 3.

The pull ring cap is manufactured by punching a prefabricated structure with a raised part 2 shown in fig. 1 from an aluminum plate, stretching the prefabricated structure to bend the edge part into a cylindrical side wall 112 of the cap body 11, using the central part as a circular cap wall 111 of the cap body 11, stretching the raised part 2 into a raised edge 113 which is raised outwards to obtain the cap body 11 shown in fig. 4, dripping glue into the circular cap wall 111 of the cap body 11, then pressing and forming a sealing gasket 5, and then injection molding a plastic pull ring 12 on the raised edge 113 of the cap body 11 to obtain the pull ring cap shown in fig. 5.

In the process of producing the ring pull cover, a user firstly punches a prefabricated part structure shown in fig. 1 from an aluminum plate, wherein the prefabricated part structure comprises a body part 1 and a raised edge part 2, the body part 1 is in an arc shape, and the raised edge part 2 is formed by extending outwards from one side of the body part 1. Two side edges of the joint of the body portion 1 and the raised portion 2 are respectively provided with a concave stretching buffer inner recess 4, as shown in fig. 2, each stretching buffer inner recess 4 is sandwiched by a first side edge 41 on the body portion 1 and a second side edge 42 on the raised portion 2, and an included angle between the first side edge 41 and the second side edge 42 is an obtuse angle, that is, the included angle is greater than 90 degrees but less than 180 degrees. Two cover opening notch grooves 3 are formed in the body portion 1, each cover opening notch groove 3 corresponds to one stretching buffer inner notch 4, and each cover opening notch groove 3 extends into the body portion 1 from the corresponding stretching buffer inner notch 4. In each open cover score line groove 3, the front section is linear, and the rear section is arc-shaped, which is consistent with the outline shape of the body part 1.

It should be noted that, the process of punching out the prefabricated structure for forming the pull-ring cover is as follows: firstly, referring to a left end legend in fig. 3, punching a warped edge part 2 and two stretching buffer inner notches 4 of a prefabricated member structure on an aluminum plate according to the outline shapes of the warped edge part 2 and the two stretching buffer inner notches 4 of the prefabricated member structure; secondly, referring to a middle legend in fig. 3, punching two cover opening notch grooves 3 at positions corresponding to the two stretching buffer inner notches 4 on the aluminum plate on which the raised edge part 2 and the two stretching buffer inner notches 4 are punched; thirdly, referring to a right end illustration in fig. 3, on the aluminum plate which is punched to form the raised edge part 2 and the two stretching buffer inner notches 4 and is punched to form the two uncapping notch grooves 3, the aluminum plate is punched according to the outline shape of the body part 1, and the prefabricated part structure for forming the pull ring cover shown in fig. 1 is obtained.

After punching out the preform structure for forming the ring pull cap shown in fig. 1, a user uses a mold to stretch the preform structure to obtain the cap body 11 shown in fig. 4, specifically, first, the mold is used to stretch the body 1 of the preform structure, so that the edge portion of the body 1 is bent upward to form the cylindrical sidewall 112 of the cap body 11, and the center portion of the body 1 is used as the circular cap wall 111 of the cap body 11, and then the mold is used to stretch the raised edge portion 2 of the preform structure, so that the raised edge portion 2 is bent outward to form the raised edge 113 of the cap body 11, thereby obtaining the cap body 11 shown in fig. 4. In the process of stretching the main body 1, the edge portion of the main body 1 is pressed against the two stretching buffer inner recesses 4 by being pressed by itself, so that the two stretching buffer inner recesses 4 are changed from the obtuse angle state shown in fig. 1 and 2 to the acute angle state shown in fig. 4 and 5, and in this process, the self-extrusion force applied to the edge portion of the main body 1 is reduced due to the change of the state of the stretching buffer inner recesses 4, and the tubular side wall 112 formed by bending the edge portion of the main body 1 is prevented from being excessively extruded to generate wrinkles. Then, a user drops glue into the circular cover wall 111 of the cover body 11 and presses and forms a sealing gasket 5 attached to the circular cover wall 111, and then an injection mold is used to injection mold a plastic pull ring 12 on the raised edge 113 of the cover body 11, so as to obtain the pull ring cover shown in fig. 5.

The preceding section of the uncapping score groove 3 on the body part 1 of the prefabricated component structure is linear, and the back end is circular-arc shape consistent with the outline shape of the body part 1, after the prefabricated component structure is stretched into the cover body 11, a sealing gasket 5 is formed in the cover body 11, a plastic pull ring 12 is injection-molded on the raised edge 113, so that a pull ring cover can be obtained, then the pull ring cover can be covered on the bottle mouth of the glass bottle, and the bottle mouth is sealed by using the sealing gasket 5. When opening the bottle, the user holds the plastic pull ring 12 and pulls the raised edge 113, and can easily tear the cylindrical side wall 112 of the cap body 11 along the front section straight line of the cap opening notch groove 3, and then tear the circular cap wall 111 of the cap body 11 along the rear section of the cap opening notch groove 3, so that the pull ring cap can be taken down from the bottle mouth, and the cap opening is realized.

The above description is only the embodiment created by the present invention, including the preform structure and the punching and drawing processes thereof. The scope of protection of the patent is not limited thereto. The insubstantial changes or substitutions will now be made by those skilled in the art based on the teachings of the present invention, which fall within the scope of the claims.

Claims (5)

1. A prefab structure for shaping tab lid, include this somatic part (1) and follow the limit portion (2) that sticks up that one side of this somatic part (1) outside extension formed, this somatic part (1) is used for lid body (11) of stretch forming tab lid, stick up limit portion (2) and be used for stick up limit (113) of stretch forming tab lid, be equipped with uncap notch groove (3) on this somatic part (1), characterized by, this somatic part (1) with handing-over department side of stick up limit portion (2) is opened and is had notch (4) in the tensile buffering of indent, uncap notch groove (3) are followed notch (4) stretch to in the tensile buffering in this somatic part (1).

2. The preform structure for forming a tab cover according to claim 1, wherein the draw-buffering inner recess (4) is sandwiched by a first side (41) and a second side (42), the first side (41) being located on the body portion (1), the second side (42) being located on the hem portion (2), and an angle between the first side (41) and the second side (42) being an obtuse angle.

3. The preform structure for forming the ring-pull cover according to claim 1, wherein two concave stretching buffer inner recesses (4) are respectively formed at two sides of a joint of the body portion (1) and the raised portion (2), two cover-opening score grooves (3) are formed, and each cover-opening score groove (3) extends from the corresponding stretching buffer inner recess (4) to the inside of the body portion (1).

4. The preform structure for molding a ring-pull cover according to claim 1, wherein the body portion (1) has an arc-shaped outer contour, the lid-opening score groove (3) has a linear front section and an arc-shaped rear section conforming to the outer contour of the body portion (1).

5. The preform structure for molding a snap ring cap as claimed in claim 1, wherein the preform structure is made of aluminum.

Images