Large-caliber packaging tin manufacturing method and product thereof

A packaging can and large-caliber technology, which is applied in the field of large-caliber packaging can preparation methods and its products, can solve the problems of complex processing procedures for three-piece cans, inability to guarantee product performance, oxidation and blackening of weld seams, etc., and achieve environmental benefits Effects of protection, expansion of packaging range, and improvement of surface gloss

Active Publication Date: 2016-12-07
英联金属科技(汕头)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] From the above, it can be seen that the technical process of preparing three-piece cans is complicated, and there is a risk that the product performance cannot be guaranteed
For example, in order to protect the weld seam of the can body from being oxidized, it is generally necessary to carry out recoating treatment on the weld seam. However, t

Method used

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  • Large-caliber packaging tin manufacturing method and product thereof
  • Large-caliber packaging tin manufacturing method and product thereof
  • Large-caliber packaging tin manufacturing method and product thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0036] Please refer to Figure 2-4 , a method for preparing a large-diameter packaging tank, comprising the following steps:

[0037] (1) Prepare aluminum foil and some metal plates with a thickness of 0.19-0.35mm;

[0038](2) The first deformation forming: put a metal plate on the feeding table of the servo motor transmission device, and send the metal plate to the punching mold through the servo motor transmission device, and use the punching mold to open at 90T The blanking punching and forming operation is carried out on the material punching device, and the punching strength is 600-1000 kN. Among them, taking the tinplate plate with a thickness of 0.21 mm and a slit diameter of 320 mm as an example, the punching strength is 688 kN. Take tinplate sheet with 0.23mm and slit diameter of 470mm as an example, the stamping strength is 882 kN; the main motor of the 90T blanking and punching device rotates at a speed of 50-150R / min, and punches and cuts the tinplate sheet throug...

Embodiment 2

[0052] The main difference between this embodiment and Embodiment 1 is that the step (5) also includes the following steps: placing the secondary molding semi-finished product on the rolling mold to perform rolling treatment, and forming several rolling ribs on the secondary molding semi-finished product 206. Other steps are the same as those in Embodiment 1, and will not be repeated here.

[0053] The rib rolling treatment step in this embodiment can better strengthen the strength of the can body. The rolling ribs can be one or more, which is determined according to the height of the packaging tank, the composition and characteristics of the packaged items.

Embodiment 3

[0055] Please refer to Figure 5 , the main difference between this embodiment and Embodiment 2 is that the step (5) also includes the following steps: placing the secondary molding semi-finished product after the rolling process on the necking mold for necking treatment, forming a neck with a diameter of 83-127mm, secondary molded semi-finished products with a tank neck 511 height of 30-80mm. The flanging processing method in this step is: die punching and flanging are adopted. Other steps are the same as those in Embodiment 2, and will not be repeated here.

[0056] The purpose of the necking treatment step in this embodiment is to match the size of the neck opening of the can neck 511 with the size of the top cover 501 and the aluminum foil 502 , so as to reduce the size of the tin plate required for the packaging can 50 as a whole.

[0057] What needs to be explained here is that the rolling processing steps of embodiment two and the necking processing steps of embodimen...

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Abstract

The invention discloses a large-caliber packaging tin manufacturing method. The method comprises the following steps that 1, an aluminum foil and a metal sheet are prepared; 2, first-time deformation forming is carried out, and a first-time deformation model blank is formed; 3, second-time deformation forming is carried out, and a second-time deformation model blank is formed; 4, third-time deformation forming is carried out, a semi-product formed a time is formed, and the semi-product is a packaging tin semi-product with a tin body and a bottom cover formed integrally; 5, shear mouth punching machining and size fine adjustment are carried out, and a second-time semi-product is formed; 6, a top cover matched with an opening of the second-time semi-product is manufactured; and 7, the turnup part of the second-time semi-product is hooked to the curve part of the top cover to form an interlocking structure, the aluminum foil is arranged at a notch of the top cover, the sealing combination is achieved by means of a bonding manner, and a large-caliber packaging tin is formed. The invention further discloses the large-caliber packaging tin. The manufacturing method is simple and reasonable in technology, and the manufactured large-caliber packaging tin is high in packaging strength, good in airtightness, good in photophobism, capable of effectively guaranteeing the performance like food safety.

Description

technical field [0001] The invention relates to the field of packaging cans, in particular to a method for preparing large-caliber packaging cans and products thereof. Background technique [0002] Usually, large-diameter tinplate cans are widely used in the packaging fields of milk powder, coffee powder, seasoning, tea, medical drugs and other food and medicine. Tinplate cans are mainly a combination of cans and lids, which are packaged and processed to form a well-sealed can for sealing various items. Since tinplate cans are used for the packaging of powdery and liquid items such as food and medicine, the requirements for the sealing and barrier properties of the packaging cans are relatively high; at the same time, because the packaged cans need to be transported between different locations, so , the packaging cans have higher requirements on pressure resistance, deformation resistance, deformation strength and impact strength. [0003] Because of technical limitations,...

Claims

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Application Information

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IPC IPC(8): B21D51/26B65D1/16
CPCB21D51/26B65D1/165
Inventor 黎泽棉李敬原杨波
Owner 英联金属科技(汕头)有限公司
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