Nested dry powder packaging bag and packaging system

Abstract

The application discloses a nested dry powder packaging bag and a packaging system. The nested dry powder packaging bag comprises bag bodies which are nested from inside to outside in sequence. Cavities for containing dry powder are formed between adjacent bag bodies. An annular framework is packaged in the opening of each bag body. A cover is arranged at the opening of each bag body and is clamped with the annular framework. Different packaging areas are distinguished by the nested dry powder packaging bag, which is used for respectively and quantitatively containing different kinds of dry powder, facilitating packing and stacking, avoiding the problem of material error caused by mixed storage of dry powder, and reducing the construction cost and management problem of self-built material conveying and weighing systems. Meanwhile, the packaging system matched with the nested dry powder packaging bag can realize quick positioning, fixing and filling of dry powder, and keep the openings of the bag bodies after filling of dry powder flat, facilitating packaging of the cover.

Description

Technical Field

[0001] This invention belongs to the technical field of coating production equipment, and specifically relates to nested dry powder packaging bags and packaging systems. Background Technology

[0002] Natural stone paint is a coating made primarily of natural crushed stone and stone powder of different particle sizes, using synthetic resin or synthetic resin emulsion as the main binder, and supplemented with various additives. Usually, for a fixed specification of stone paint, the proportion of each material is fixed during the production process, especially since various different dry powders are added during the production of stone paint. Traditional stone paint production involves quantitative material feeding during production, that is, weighing each material according to the proportion and then adding it to the mixing tank in batches. This production method is relatively traditional and has the following drawbacks: (1) Each dry powder material needs to be stacked separately, requiring a relatively strict material storage system to avoid mixing dry powders and causing incorrect material delivery; (2) Each material needs to be weighed quantitatively during the production process. Traditional manual weighing is time-consuming and labor-intensive, while automated weighing systems require the establishment of a relatively complete material feeding and weighing system, resulting in high construction costs. Summary of the Invention

[0003] This invention addresses the problems of existing technologies by providing a nested dry powder packaging bag and packaging system, the specific technical solution of which is as follows:

[0004] Nested dry powder packaging bag includes bag bodies nested from the inside out, with a cavity for holding dry powder formed between adjacent bag bodies, and an annular skeleton sealed inside the opening of each bag body, with a cap provided at the opening of each bag body that engages with the annular skeleton.

[0005] As a preferred embodiment of the above technical solution, the annular frame has a horizontally extending locking plate, and the edge of the cover has a locking groove that engages with the locking plate.

[0006] In addition, the present invention also provides a packaging system for packaging the above-mentioned nested dry powder packaging bag. The packaging system is used to package the nested dry powder packaging bag as described in claim 1. The packaging system includes at least three annularly symmetrically arranged support rods. The support rods are horizontally arranged and can reciprocate along the length direction. The bottom of the support rods is provided with hooks. The number of hooks matches the number of nested layers of the bag. The hooks have grooves facing outward from the center of the annularly symmetrical arrangement of the support rods. The annular skeleton can be embedded in the grooves of the hooks.

[0007] As a preferred embodiment of the above technical solution, the bottom of the support rod has a cavity, the upper part of the hook extends into the bottom cavity of the support rod, and a spring is provided in the cavity to press the hook towards the groove opening.

[0008] As a preferred embodiment of the above technical solution, it also includes an annular bracket, wherein the support rod is slidably disposed on the annular bracket.

[0009] As a preferred embodiment of the above technical solution, the method further includes a telescopic driver that drives the support rod to reciprocate along the length direction, wherein the telescopic end of the telescopic driver is fixedly connected to the end of the support rod.

[0010] As a preferred embodiment of the above technical solution, the bottom of the hook extends downward to form a cone-shaped spike.

[0011] The beneficial effects of the present invention are as follows: (1) Nested dry powder packaging bags are used to distinguish different packaging areas for separately quantitatively containing different types of dry powder, which is convenient for packing and stacking, and avoids the problem of incorrect material delivery caused by mixed dry powder; (2) Nested dry powder packaging bags are ready to use and can be customized according to the specifications and requirements of the manufactured real stone paint, avoiding the construction cost and management problems of building a material conveying and weighing system; (3) A packaging system matching the nested dry powder packaging bags is provided, which can realize quick positioning and filling of dry powder, and keep the opening after filling dry powder flush, which is convenient for sealing and capping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a nested dry powder packaging bag;

[0013] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0014] Figure 3 This is a schematic diagram of the top of a nested dry powder packaging bag;

[0015] Figure 4 This is a schematic diagram of the packaging system structure;

[0016] Figure 5 A schematic diagram of the connection structure between the telescopic actuator and the support rod;

[0017] Figure 6 This is a schematic diagram of the connection structure between the support rod and the hook. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0019] Example 1

[0020] This embodiment provides a nested dry powder packaging bag, such as Figures 1-3As shown, the nested dry powder packaging bag includes an inner bag 10, a middle bag 20, and an outer bag 30. The inner bag 10, the middle bag 20, and the outer bag 30 are nested from the inside out. The inner bag 10, the cavity between the inner bag 10 and the middle bag 20, and the cavity between the middle bag 20 and the outer bag 30 are all used to hold different types of dry powder. The openings of the inner bag 10, the middle bag 20, and the outer bag 30 are flush. The openings of the inner bag 10, the middle bag 20, and the outer bag 30 are sealed with a circular cap 11 and an annular cap 21 from the inside out. The circular cap 11 is used to seal the inner bag 10, and the annular cap 21 is used to seal the opening outside the inner bag 10.

[0021] In this embodiment, the intermediate bag 20 has only one layer, that is, it forms three spaced cavities from the inside out, each cavity being used to hold a different type of dry powder. The intermediate bag 20 can also be configured with two or more, depending on the type of dry powder to be held.

[0022] like Figure 2 As shown, annular skeletons 40 are provided at the openings of the inner bag 10, the middle bag 20, and the outer bag 30. The annular skeletons 40 are sewn into the bag body. The annular skeletons 40 have a retaining plate extending horizontally towards the center of the opening. The edges of the corresponding circular caps 11 and annular caps 21 have retaining grooves that engage with the retaining plate, so that the circular caps 11 and annular caps 21 are sealed at the opening through the cooperation of the retaining plate and the retaining groove.

[0023] Example 2

[0024] This embodiment corresponds to a packaging system providing nested dry powder packaging bags, such as... Figure 4 As shown, the packaging system includes a ring-shaped support 100, on which a horizontal support rod 110 is provided. Three support rods 110 are provided and are symmetrically distributed around the axis of the ring-shaped support 100. The support rods 110 can slide radially back and forth relative to the ring-shaped support 100. Several hooks 120 are provided at the bottom of the support rods 110. The number of hooks 120 is determined according to the number of layers of the nested dry powder packaging bag and is kept consistent with it. The grooves of the hooks 120 are arranged radially outward along the ring-shaped support 100. The hooks 120 can reciprocate a certain distance along the length of the support rods 110.

[0025] like Figure 5 As shown, a telescopic actuator 200 is provided on the outer side of the annular bracket 100. The telescopic end of the telescopic actuator 200 is fixedly connected to the end of the support rod 110. The movement of the telescopic end of the telescopic actuator 200 enables the support rod 110 to reciprocate radially along the annular bracket 100. The telescopic actuator 200 can be an existing cylinder, connecting rod structure, etc., which will not be described in detail in this embodiment.

[0026] like Figure 6As shown, the upper part of the hook 120 extends into the bottom cavity of the support rod 110. A spring 130 is installed in the bottom cavity of the support rod 110. The elastic force generated by the spring 130 under normal conditions presses the hook 120 against the outside of the annular bracket 100.

[0027] When the packaging system is in operation, the inner bag 10, the middle bag 20, and the outer bag 30 are respectively secured between the hooks 120 from the inside out. Since the hooks 120 are supported by springs 130, when the annular frame 40 of the inner bag 10 enters the groove of the hook 120, the springs 130 immediately reset the hooks 120. Thus, through the cooperation of the three centrally symmetrical hooks 120 and the horizontally extending clamping plates of the annular frame 40, the openings of the inner bag 10, the middle bag 20, and the outer bag 30 are all fixed on the same plane. Then, the inner bag 10, the middle bag 20, and the outer bag 30 are... Different types of dry powder are injected into the cavities of the inner bag 10 and the middle bag 20 and the outer bag 30 respectively. Since the size and volume of the inner bag 10, the middle bag 20 and the outer bag 30 are pre-designed, when the cavities of the inner bag 10, the middle bag 20 and the outer bag 30 are filled with dry powder, that is, when they are filled with a predetermined amount of dry powder, the inner bag 10, the middle bag 20 and the outer bag 30 will also remain upright under the support of the dry powder. In this state, the openings of the inner bag 10, the middle bag 20 and the outer bag 30 will still be on the same plane, which is convenient for sealing the round cap 11 and the ring cap 21.

[0028] In another embodiment, the bottom of the hook 120 extends downward to form a conical spike. The annular skeleton 40 is pushed upward by the conical spike, making it easier to get into the groove of the hook 120. At the same time, after the annular skeleton 40 is in the groove of the hook 120, the conical spike extends into the inner bag 10, the middle bag 20 and the outer bag 30, forming a support for the bag body, making it easier to inject dry powder into the bag body.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A packaging system for nested dry powder packaging bags, characterized in that, The nested dry powder packaging bag includes bag bodies (10, 20, 30) nested from the inside out, with a cavity for holding dry powder formed between adjacent bag bodies (10, 20, 30). An annular skeleton (40) is sealed inside the opening of each bag body (10, 20, 30), and a cap (11, 21) is provided at the opening of each bag body (10, 20, 30) to engage with the annular skeleton (40). The annular skeleton (40) has a horizontally extending retaining plate, and the edges of the caps (11, 21) have grooves that engage with the retaining plate. The packaging system includes at least three annularly symmetrically arranged support rods (110), which are horizontally arranged and capable of reciprocating along their length. The bottom of each support rod (110) is provided with hooks (120), the number of which matches the number of nesting layers of the bag (10, 20, 30). Each hook (120) has a groove facing outward from the center of the annularly symmetrical arrangement of the support rods (110), and the annular skeleton (40) can be embedded in the groove of the hook (120). The bottom of the support rod (110) has a cavity, and the upper part of the hook (120) extends into the bottom cavity of the support rod (110). A spring (130) is provided in the cavity to press the hook (120) toward the groove opening direction. The packaging system also includes an annular support (100), and the support rod (110) is slidably disposed on the annular support (100); The packaging system also includes a telescopic actuator (200) that drives the support rod (110) to reciprocate along the length direction, and the telescopic end of the telescopic actuator (200) is fixedly connected to the end of the support rod (110).

2. The packaging system for nested dry powder packaging bags according to claim 1, characterized in that, The bottom of the hook (120) extends downward to form a cone-shaped spike.

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