Closed barrel lining bag with square bottom and square top
By designing a closed-end barrel lining bag with square bottom and square top, using the bidirectional insertion edge and heat sealing welding technology of the barrel membrane, the problems of low production efficiency and difficult quality control in the existing technology are solved, and automated production and cost reduction are achieved. Effect.
Patent Information
- Application Number
- CN202420783504.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The production efficiency of existing closed-barrel bags is low and the product quality is difficult to control, so large-scale automated production cannot be achieved.
Design a closed-mouth bucket lining bag with square bottom and square top. The bag body is formed by bidirectional insertion of the barrel membrane. It is heat sealed and welded into a small square bag top and bottom, and then unfolded into a cylindrical shape. The valve port is preset In the position of the cylinder membrane, it is suitable for the one-time molding of automated production equipment.
It realizes efficient and automated production, reduces production costs, and improves the controllability of product quality.
Smart Images
Figure CN222158301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a closed barrel lining bag with a square bottom and a square top in the field of logistics packaging. Background Art
[0002] In logistics and transportation, liquid materials are usually stored and transported in closed barrels. In order to solve the difficulty of cleaning closed barrels and reduce the pollution of hazardous waste treatment to the environment, lining bags are installed in closed barrels to effectively reduce the cost of use. Since the lining bags of closed barrels currently used all have round bottoms and round tops that fit the barrel body, the production method of this type of lining bag can only be semi-mechanical + manual production, and its production efficiency is low. When used on a large scale, the production pressure is very high and the product quality is difficult to control. Utility Model Content
[0003] The utility model is realized by the following technical solutions:
[0004] A closed barrel liner bag with a square bottom and a square top, characterized in that: the liner bag is composed of a bag body, a bag top and a bag bottom, the bag top and the bag bottom are both small square structures, the bag body is formed by two-way inner inserting edges of a tubular film, and can be cylindrical after unfolding; the upper and lower ends of the tubular film are formed by heat sealing to form a closed small square bag top and bag bottom; the bag body can be cylindrical after unfolding; the bag top and the bag bottom can form a circular top and a circular bottom after filling; the above technical scheme is further explained: a valve port is provided on the bag top, and the position of the valve port corresponds to the position of the injection port of the closed barrel; the above technical scheme is further explained: the diagonal length of the small squares of the bag top and the bag bottom is smaller than the inner diameter of the closed barrel body; the above technical scheme is further explained: the valve port is preset at the corresponding position of the tubular film.
[0005] The utility model has the characteristics of reasonable bag structure, capable of realizing full-automatic production, high production efficiency, easy control of product quality, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 This is a schematic diagram of the structure of a closed barrel liner bag with a square bottom and square top.
[0007] Figure 2 A top view of the liner bag in a closed barrel with a square bottom and square top.
[0008] In the figure: bag body 1, top heat-sealing line 2, bag bottom heat-sealing line 3, inner folding line 4, valve port 5, closed-mouth barrel 6, liner bag 7 and small square bottom 8. DETAILED DESCRIPTION
[0009] The following is a further description of the contents of the utility model in conjunction with the accompanying drawings:
[0010] As shown in the figure, it is a schematic diagram of the structure of a closed barrel liner bag with a square bottom and square top, including a bag body 1, a top heat-sealing line 2, a bag bottom heat-sealing line 3, an inner folding line 4, a valve port 5, a closed barrel 6, an inner liner bag 7 and a small square bottom 8.
[0011] Since the circular bottom and circular top liner bags that fit the barrel body used in the current closed barrels need to be completed by manual + semi-automatic machinery in the processing and production process, large-scale automated production cannot be achieved. The utility model is designed to provide a closed barrel liner bag with a small square structure on the top and bottom surfaces that is suitable for one-time molding with automatic production equipment. The structural design adopts a cylindrical film integrated molding process, and the two-way inner insert edge of the cylindrical film forms the bag body. The upper and lower ends of the cylindrical film are formed into a closed small square bag top and bag bottom structure by heat sealing welding; the bag body can be cylindrical after being loaded and unfolded; the bag top and bag bottom can be rounded after filling, and the valve port is preset at the corresponding position of the cylindrical film. The upper end of the cylindrical film is folded to locate the valve port on the bag top, and the valve port is installed and the bag body is heat-sealed and sealed at one time by heat sealing welding, and the valve port does not need to be installed and set again after the bag body is completed; the diagonal of the bottom and top surfaces of the small square structure is smaller than the inner diameter of the closed barrel body. The bag body can be cylindrical after unfolding. The use of the bag body forming structure enables the liner bag to be formed in one step on an automated production line, effectively improving production efficiency and reducing production costs, making product quality easier to control.
[0012] The above are only preferred implementations of the present application. The scope of protection of the present application shall be based on the scope defined by the claims. For technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A square bottom and square top closed barrel liner bag, characterized in that The liner bag is composed of a bag body, a bag top and a bag bottom. The bag top and the bag bottom are both small square structures. The bag body is formed by the bidirectional inner edges of the tubular film and can be cylindrical after unfolding. The upper and lower ends of the tubular film are heat-sealed to form a closed small square bag top and bag bottom. The bag body can be cylindrical after unfolding. The bag top and the bag bottom can become round top and bottom after filling.
2. A square bottom and square top closed barrel liner bag according to claim 1, characterized in that: A valve port is arranged on the top of the bag, and the position of the valve port corresponds to the position of the injection port of the closed barrel.
3. A square bottom and square top closed barrel liner bag according to claim 1, characterized in that: The diagonal lengths of the small squares on the bag top and bag bottom are smaller than the inner diameter of the closed barrel body.
4. A square bottom and square top closed barrel liner bag according to claim 2, characterized in that: The valve port is preset at a corresponding position of the tubular membrane.