Pressing assembly for manufacturing package and apparatus including same

Abstract

A pressing assembly for manufacturing a package and an apparatus including same, said assembly comprising a packaging sleeve (10) extending in the longitudinal direction and a flow guide component (20) joined to an end portion of the packaging sleeve (10) in the longitudinal direction; the flow guide component (20) comprises a flange (21) used for joining with the packaging sleeve (10). The pressing assembly comprises a plurality of pressing members (110) arranged around the packaging sleeve (10), each pressing member (110) comprises a pressing surface (111), and each pressing member (110) is constructed to use the pressing surface (111) for pushing the packaging sleeve (10) to the flow guide component (20), such that the end portion of the packaging sleeve (10) and the flange (21) join to one another. At least a partial region of the pressing surface (111) of at least one pressing member (110) is a metal region (R1), such that, when the pressing member (110) pushes the packaging sleeve (10) to the flow guide component (20), the packaging sleeve (10) is located between the flange (21) and the metal region (R1). The good thermal conductivity of the metal material enables the hot-melt materials of the flange (21) and the packaging sleeve (10) to be rapidly cooled and cured after bonding is completed, thereby preventing the sealing effect from being influenced by adhesion using adhesive. The metal material does not deform during pressing, so that the metal regions of the pressing members do not damage patterns on the packaging sleeve (10), increasing the yield of the packages.

Description

Pressing assembly and device for manufacturing packaging

[0001] This application claims priority to Chinese patent application No. 202323479800.X filed on December 20, 2023. The contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as part of this application. Technical Field

[0002] Embodiments of the present disclosure relate to a pressing assembly and apparatus thereof for manufacturing packaging. Background Art

[0003] In food packaging, especially for liquid foods, filling equipment is often used to produce the packaging. For example, a packaging sleeve with two openings at both ends is conveyed to the filling equipment, which seals one opening and then uses the other opening to fill the liquid food. After filling is complete, the other opening is sealed again, ultimately forming a finished package containing the food.

[0004] With the development of the packaging industry, devices for manufacturing packaged products have also emerged. These devices are typically efficient, intelligent, integrated production equipment and are widely used in industries such as food, pharmaceuticals, and daily chemicals. Due to the increasing emphasis on food safety, food packaging is increasingly valued by consumers. High-quality food packaging not only improves product quality but also extends its shelf life. Consequently, this places higher demands on the equipment used to manufacture packaging. Summary of the Invention

[0005] The embodiments of the present disclosure provide a pressing assembly and a device thereof for manufacturing packaging, wherein at least a portion of the pressing surface of at least one pressing part of the pressing assembly is a metal area. The good thermal conductivity of the metal material enables the hot-melt material of the flange and the packaging sleeve to cool and solidify quickly after bonding, thereby avoiding adhesive adhesion affecting the sealing effect; the metal material will not deform during the pressing process, so that the metal area of ​​the pressing part will not damage the pattern on the packaging sleeve, thereby improving the yield rate of the packaging; in addition, the metal material has greater pressure, which can achieve a better bonding effect between the packaging sleeve and the flange.

[0006] At least one embodiment of the present disclosure provides a pressing assembly for manufacturing packaging, wherein the packaging includes a packaging sleeve extending longitudinally and a guide component engaged with the end of the packaging sleeve along the longitudinal direction, the guide component includes a flange for engaging with the packaging sleeve, the pressing assembly includes a plurality of pressing members arranged around the packaging sleeve, each of the pressing members includes a pressing surface, and each of the pressing members is configured to use the pressing surface to push the packaging sleeve to the guide component so that the end of the packaging sleeve and the flange engage with each other, at least a portion of the pressing surface of at least one of the pressing members is a metal area, so that when the pressing member pushes the packaging sleeve to the guide component, the packaging sleeve is located between the flange and the metal area.

[0007] For example, in a pressing assembly provided in an embodiment of the present disclosure, the packaging sleeve has a longitudinal seam sealed along the longitudinal direction, the longitudinal seam has an overlapping area with the flange, and the at least one pressing part includes a pre-pressing pressing part facing the longitudinal seam, and the metal area is provided on the pressing surface of the pre-pressing pressing part. When the pre-pressing pressing part pushes the packaging sleeve to the flange, the metal area at least covers the overlapping area.

[0008] For example, in a pressing assembly provided in an embodiment of the present disclosure, the pre-pressed pressed part is further provided with a cooling channel, in which a flowing cooling medium is provided, and the cooling medium cools at least the metal zone.

[0009] For example, in a pressing assembly provided in one embodiment of the present disclosure, the cooling medium includes liquid, one end of the cooling channel is connected to a cooling pipe of a cooling device, and the other end of the cooling channel is connected to a return pipe of the cooling device.

[0010] For example, in a pressing assembly provided in an embodiment of the present disclosure, the cooling medium includes gas, one end of the cooling channel is connected to a cold air generating device, and the other end of the cooling channel is connected to an exhaust pipe.

[0011] For example, in a pressing assembly provided in one embodiment of the present disclosure, the pressing surface of the pre-pressed pressing part also includes a flexible area surrounding the metal area, the pre-pressed pressing part includes a first metal part and a flexible sleeve, the first metal part includes a base and a protrusion protruding from the base, the flexible sleeve covers the base, the metal area is located on the protrusion, and the flexible area is located on the flexible sleeve.

[0012] For example, in a pressing assembly provided in an embodiment of the present disclosure, the entire pressing surface of the pre-pressed pressed part is a metal area.

[0013] For example, in a pressing assembly provided in an embodiment of the present disclosure, the packaging sleeve includes multiple side surfaces, and the multiple side surfaces include a first side surface and a second side surface connected to each other; the multiple pressing parts include a pre-folding pressing part arranged in cooperation with the pre-pressing pressing part; the pre-folding pressing part is constructed to use the pressing surface of the pre-folding pressing part to push the second side surface to the flange so that part of the second side surface is engaged with the flange; the pre-pressing pressing part is constructed to use the pressing surface of the pre-pressing pressing part to push the first side surface to the flange so that part of the first side surface is engaged with the flange; the packaging sleeve includes an ear wing portion, and when the first side surface and the second side surface are both engaged with the flange, the ear wing portion is formed, and the ear wing portion includes a first ear wing area located on the first side surface and a second ear wing area located on the second side surface; the multiple pressing parts include a pair of relatively arranged pre-folding pressing parts and a pair of relatively arranged pre-pressing pressing parts.

[0014] For example, in the pressing assembly provided in one embodiment of the present disclosure, at least a portion of the pressing surface of the pre-folded pressed component is a flexible area, and the pre-folded pressed component is constructed such that when the pressing surface of the pre-folded pressed component pushes the second side surface, the flexible area at least contacts the second ear wing area.

[0015] For example, in the pressing assembly provided in one embodiment of the present disclosure, the entire pressing surface of the pre-folded pressed part is a flexible area, the pre-folded pressed part includes a second metal part and a flexible part connected to the second metal part, and the flexible area is located on the flexible part.

[0016] For example, in a pressing assembly provided in an embodiment of the present disclosure, the pre-folded pressed part further includes a rigid support structure, which is connected between the flexible part and the second metal part and is configured to support the flexible part.

[0017] For example, in the pressing assembly provided in one embodiment of the present disclosure, the second side surface also includes a joining area, and when the second side surface is joined with the flange, the joining area covers the flange, and the pressing surface of the pre-folded pressed part also includes a metal area, and the pre-folded pressed part is constructed as follows: when the pressing surface of the pre-folded pressed part pushes the second side surface to the flange, the metal area of ​​the pre-folded pressed part at least contacts the joining area.

[0018] For example, in a pressing assembly provided in one embodiment of the present disclosure, the pre-folded pressed component includes a second metal component, a flexible component connected to the second metal component, and a metal sub-block embedded in the flexible component, the metal area of ​​the pressing surface of the pre-folded pressed component is located on the metal sub-block, and the flexible area of ​​the pressing surface of the pre-folded pressed component is located on the flexible component.

[0019] At least one embodiment of the present disclosure provides an apparatus for manufacturing packaging, comprising any of the pressing assemblies described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0021] FIG1 is a schematic diagram of a pressing assembly for manufacturing packaging provided by an embodiment of the present disclosure;

[0022] FIG2 is a schematic structural diagram of a package shown in FIG1 ;

[0023] FIG3 is a schematic structural diagram of a pressed part shown in FIG1 ;

[0024] FIG4 is a schematic cross-sectional view of the longitudinal seam of the package shown in FIG2 ;

[0025] FIG5 is a schematic structural diagram of another pre-pressed pressed component shown in FIG1 ;

[0026] FIG6 is a schematic structural diagram of another pre-pressed pressed component shown in FIG1 ;

[0027] FIG7 is a cooling flow chart of a pre-pressed part provided by an embodiment of the present disclosure;

[0028] FIG8 is a cooling flow chart of another pre-pressed part provided by an embodiment of the present disclosure;

[0029] FIG9 is a schematic diagram of an exploded structure of the pre-pressed pressed part shown in FIG3 ;

[0030] FIG10 is a schematic structural diagram of the first metal member shown in FIG9 ;

[0031] FIG11 is a cross-sectional view of the leakage problem at the longitudinal seam of the packaging sleeve before and after improvement;

[0032] FIG12 is a schematic structural diagram of another pre-pressed pressed component shown in FIG1;

[0033] FIG13 is a schematic structural diagram of a pre-folded pressed part shown in FIG1;

[0034] FIG14 is a schematic diagram of an intermediate state of the package after being pressed by the pressing assembly in FIG1 ;

[0035] FIG15 is a schematic cross-sectional view taken along a section perpendicular to the longitudinal direction of the packaging sleeve in FIG1 ;

[0036] Figure 16 is a diagram of the packaging appearance after the test in Table 2;

[0037] FIG17 is a schematic structural diagram of another pre-pressed pressed component shown in FIG1;

[0038] FIG18 is a schematic cross-sectional view of the pre-folded pressed part of FIG13;

[0039] FIG19 is an enlarged partial cross-sectional view of the pre-pressed pressed member in FIG17 and the pre-folded pressed member in FIG18 when they are mated;

[0040] FIG20 is a schematic structural diagram of another pre-folded pressed part shown in FIG1;

[0041] FIG21 is a disassembled schematic diagram of FIG20;

[0042] FIG22 is a schematic structural diagram of the second metal member and the flexible member shown in FIG20 ;

[0043] FIG23 is a schematic diagram of the disassembly of another pre-folded pressed part shown in FIG1;

[0044] FIG24 is a schematic structural diagram of the flexible member shown in FIG23;

[0045] FIG25 is a schematic structural diagram of the rigid support structure shown in FIG23;

[0046] FIG26 is a schematic structural diagram of the second metal member shown in FIG23;

[0047] FIG27 is a schematic structural diagram of another pre-folded pressed part shown in FIG1;

[0048] FIG28 is a disassembled schematic diagram of FIG27;

[0049] FIG29 is a schematic cross-sectional view of FIG27 ;

[0050] FIG30 is a schematic structural diagram of the second metal member shown in FIG27;

[0051] FIG31 is a schematic diagram of the overall structure of an apparatus for manufacturing packaging provided by one embodiment of the present disclosure; and

[0052] Figure 32 is an enlarged schematic diagram of the core shaft wheel shown in Figure 31. DETAILED DESCRIPTION

[0053] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0054] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0055] Unless otherwise defined, the features such as “parallel”, “perpendicular” and “identical” used in the embodiments of the present disclosure include situations such as “parallel”, “perpendicular” and “identical” in a strict sense, as well as situations such as “approximately parallel”, “approximately perpendicular” and “approximately identical” that contain a certain error. For example, the above-mentioned “approximately” may mean that the difference between the compared objects is 10% of the average value of the compared objects, or within 5%. When the number of a component or element is not specifically indicated below in the embodiments of the present disclosure, it means that the component or element may be one or more, or may be understood as at least one. “At least one” refers to one or more, and “plurality” refers to at least two.

[0056] The present disclosure provides a pressing assembly and apparatus for manufacturing a package. The package includes a longitudinally extending packaging sleeve and a flow guide member longitudinally engaged with an end of the packaging sleeve. The flow guide member includes a flange for engaging with the packaging sleeve. The pressing assembly includes a plurality of pressing members arranged around the packaging sleeve. Each pressing member includes a pressing surface. Each pressing member is configured to use the pressing surface to push the packaging sleeve toward the flow guide member so that the end of the packaging sleeve and the flange engage with each other. At least a portion of the pressing surface of at least one pressing member is a metal area, so that when the pressing member pushes the packaging sleeve toward the flow guide member, the packaging sleeve is located between the flange and the metal area.

[0057] In the pressing assembly provided in the embodiment of the present disclosure, the pressing surface of each pressing part pushes the packaging sleeve to the guide component so that the end of the packaging sleeve and the flange are engaged with each other. For example, the end of the packaging sleeve and the flange are engaged with each other by adhesive. For example, the adhesive can be a hot-melt material. For example, the adhesive can be the hot-melt material of the inner layer of the packaging sleeve. For example, the hot-melt material can be a hot-melt polyethylene (PE) material. For example, before the packaging sleeve is engaged with the flange, the packaging sleeve will be pre-heated to make the inner layer of the hot-melt material of the packaging sleeve in a heated and molten state; for example, before the packaging sleeve is engaged with the flange, the flange will also be pre-heated to be in a heated and molten state.

[0058] In this example, when the pressing element pushes the preheated packaging sleeve toward the preheated flange of the flow guide, the sleeve's inner layer of hot-melt material instantly forms a bond with the melted flange of the flow guide. Metallic materials have excellent thermal conductivity, allowing the metal area of ​​the pressing element to quickly cool and solidify the hot-melt material between the flange and the packaging sleeve after bonding. This prevents adhesive adhesion, which could create bubbles and affect the sealing between the packaging sleeve and the flow guide, leading to package leaks. This ensures a more secure bond between the packaging sleeve and the flange.

[0059] When the pressing surface of the pressing element is a flexible area, that is, the pressing surface is made of a flexible material such as silicone, the flexible material itself is easily deformed. This is especially true before pressing, as both the packaging sleeve and the flange of the guide component are heat-activated and at high temperatures. As the pressing element frequently pushes the packaging sleeve toward the flange and completes the bonding process, it repeatedly comes into direct contact with the hot packaging sleeve and indirectly with the hot flange. This causes the flexible material on the pressing surface to become rough and sticky due to thermal expansion, causing the printed pattern on the packaging sleeve, which is in direct contact with the pressing surface, to be easily scratched and blurred, thereby reducing the packaging yield rate. Compared to flexible materials, metal materials do not deform. Thus, the metal area of ​​the pressing element can avoid damaging the pattern on the packaging sleeve, thereby improving the packaging yield rate. For example, patterns include, but are not limited to, solid-color patterns, pure text, and multi-color patterns. In particular, text and / or patterns printed using a gravure process are printed on the outer surface of the packaging sleeve, resulting in bright colors and a strong three-dimensional effect. However, the ink on the outer surface of the packaging sleeve can easily melt due to the high temperature, causing it to be scratched or damaged.

[0060] In addition, the material of the metal area of ​​the pressed part is metal, which has greater pressure than flexible materials. When the packaging sleeve is pushed by the metal area of ​​the pressed component to engage the end of the packaging sleeve with the flange, a better joining effect can be achieved between the packaging sleeve and the flange.

[0061] Below, the pressing assembly and the device thereof for manufacturing packaging provided by the embodiments of the present disclosure are described in detail with reference to the accompanying drawings.

[0062] The present disclosure provides a pressing assembly for manufacturing packaging. Figure 1 is a schematic diagram of a pressing assembly for manufacturing packaging provided in an embodiment of the present disclosure; Figure 2 is a schematic diagram of the structure of the packaging shown in Figure 1; and Figure 3 is a schematic diagram of the structure of a pressed part shown in Figure 1.

[0063] As shown in Figures 1 to 3, the packaging includes a packaging sleeve 10 extending along the longitudinal direction X and a guide component 20 engaged with the end of the packaging sleeve 10 along the longitudinal direction X, the guide component 20 includes a flange 21 for engaging with the packaging sleeve 10, and the pressing assembly includes a plurality of pressing pieces 110 arranged around the packaging sleeve 10, each pressing piece 110 includes a pressing surface 111, and each pressing piece 110 is constructed to use the pressing surface 111 to push the packaging sleeve 10 to the guide component 20 so that the end of the packaging sleeve 10 and the flange 21 engage with each other, and at least a portion of the pressing surface 111 of at least one pressing piece 110 is a metal area R1, so that when the pressing piece 110 pushes the packaging sleeve 10 to the guide component 20, the packaging sleeve 10 is located between the flange 21 and the metal area R1.

[0064] In the pressing assembly provided in the embodiment of the present disclosure, the pressing surface 111 of each pressing part 110 pushes the packaging sleeve 10 to the guide component 20 so that the end of the packaging sleeve 10 and the flange 21 are joined to each other. For example, the end of the packaging sleeve 10 and the flange 21 are joined to each other by glue. For example, the glue can be a hot-melt material. For example, the glue can be the hot-melt material of the inner layer of the packaging sleeve 10. For example, the hot-melt material can be a hot-melt polyethylene (PE) material. For example, before the packaging sleeve 10 is joined to the flange 21, the packaging sleeve 10 will be pre-heated to make the inner layer of the hot-melt material of the packaging sleeve 10 in a heated and molten state; for example, before the packaging sleeve 10 is joined to the flange 21, the flange 21 will also be pre-heated to be in a heated and molten state.

[0065] In this example, when the pressing member 110 pushes the preheated packaging sleeve 10 toward the preheated flange 21 of the flow guide component 20, the inner layer of the hot-melt material of the packaging sleeve 10 and the melted flange 21 of the flow guide component 20 are instantly thermally bonded. Metallic materials have excellent thermal conductivity. Therefore, the metal region R1 of the pressing member 110 allows the hot-melt material of the flange 21 and the packaging sleeve 10 to cool and solidify quickly after bonding. This prevents adhesive adhesion, which could pull out bubbles and affect the sealing effect of the packaging sleeve 10 and flange 21, resulting in package leakage. This ensures a more secure bond between the packaging sleeve 10 and flange 21.

[0066] When the pressing surface 111 of the pressing member 110 is a flexible area, that is, when the material of the pressing surface 111 is a flexible material such as silicone, the flexible material itself is easily deformed. In particular, before pressing, the packaging sleeve 10 and the flange 21 of the guide component 20 are both heat-activated and in a high-temperature state. In the process of the pressing member 110 frequently pushing the packaging sleeve 10 toward the flange 21 and completing the bonding, it repeatedly directly contacts the high-temperature packaging sleeve 10 and indirectly contacts the high-temperature flange 21, causing the flexible material of the pressing surface 111 to become rough and sticky due to thermal expansion. As a result, the printed pattern on the packaging sleeve 10 that is in direct contact with the pressing surface 111 is easily scratched and becomes blurred, reducing the packaging yield rate. Compared to flexible materials, metal materials do not deform. Therefore, the metal area R1 of the pressing member 110 of the disclosed embodiment can avoid damage to the pattern on the packaging sleeve 10, thereby improving the packaging yield rate.

[0067] In addition, the material of the metal area R1 of the pressed part 110 is metal, which has greater pressure than flexible materials. When the packaging sleeve 10 is pushed by the metal area R1 of the pressed component to engage the end of the packaging sleeve 10 with the flange 21, the packaging sleeve 10 and the flange 21 can have a better joining effect.

[0068] For example, the packaging sleeve can be a composite material including multiple thin layers, for example, multiple thin layers include PE layers and paper layers, etc. Before the packaging sleeve is engaged with the flange, the packaging sleeve will be pre-heated to make the PE layer of the packaging sleeve close to the flange side in a heated and molten state. For example, the multiple thin layers can also include a metal layer (for example, the metal layer can be aluminum foil). When the packaging sleeve containing aluminum foil is engaged with the flange, due to the good heat dissipation performance of the aluminum foil, the aluminum foil in the packaging sleeve can make the flange and the heated and molten PE layer of the packaging sleeve quickly cool and solidify after bonding is completed, avoiding the occurrence of the heated and molten PE layer adhesion so as to pull out bubbles and affect the sealing effect of the packaging sleeve and the guide component. For example, the packaging sleeve in the embodiment of the present disclosure can contain no aluminum foil, and the metal area R1 of the pressing piece 110 can make the hot-melt material of the flange 21 and the packaging sleeve 10 quickly cool and solidify after bonding is completed, so that the packaging material without aluminum foil can still achieve a good heat sealing effect.

[0069] The embodiment of the present disclosure does not limit the number of pressing pieces 110 included in the pressing assembly. For example, the pressing assembly may include two or more pressing pieces 110. For example, the multiple pressing pieces 110 may appear in pairs.

[0070] In some examples, as shown in Figures 1 to 3, the packaging sleeve 10 has a longitudinal seam 11 sealed along the longitudinal direction X, the longitudinal seam 11 and the flange 21 have an overlapping area S1, and at least one pressing part 110 includes a pre-pressed pressing part 120 facing the longitudinal seam 11, and a metal area R1 is provided on the pressing surface 111 of the pre-pressed pressing part 120. When the pre-pressed pressing part 120 pushes the packaging sleeve 10 to the flange 21, the metal area R1 at least covers the overlapping area S1.

[0071] Figure 4 is a schematic cross-sectional view of the longitudinal seam of the package shown in Figure 2. As shown in Figure 4, at the longitudinal seam 11 of the packaging sleeve 10, the side of the packaging sleeve 10 near the flange 21 is uneven, resulting in the packaging sleeve 10 not being completely in contact with the flange 21 at the longitudinal seam 11. For example, a triangular area S2 exists between the packaging sleeve 10 and the flange 21 at the longitudinal seam 11. At the triangular area S2, after the inner layer of the hot-melt material of the packaging sleeve 10 and the flange 21 of the heat-molten guide component 20 are bonded, if the inner layer of the hot-melt material of the packaging sleeve 10 and the flange 21 of the guide component 20 are not quickly cooled and solidified, the hot-melt material will stick together, causing bubbles to be pulled out, affecting the sealing effect of the packaging sleeve 10 and the guide component 20, and causing the package to leak.

[0072] By providing a metal region R1 on the pre-pressed part 120, which at least covers the overlapping area S1, the metal material has good thermal conductivity. Thus, the metal region R1 of the pre-pressed part 120 can quickly cool and solidify the hot-melt material of the flange 21 and the packaging sleeve 10 after bonding, thereby preventing adhesive adhesion and the generation of bubbles that affect the sealing effect of the packaging sleeve 10 and the flow guide component 20. This can avoid the risk of poor bonding and leakage at the longitudinal seam 11. It should be noted that Figure 4 only schematically illustrates the cross-sectional structure of the longitudinal seam 11 and does not limit the embodiments of the present disclosure.

[0073] Figure 5 is a schematic structural diagram of another pre-pressed component shown in Figure 1. As shown in Figure 5, pre-pressed component 120 is further provided with a cooling channel 121, within which a cooling medium flows. The cooling medium cools at least metal region R1. Cooling channel 121 within pre-pressed component 120, and the cooling medium circulating within cooling channel 121, cools metal region R1, ensuring a stable and uniform cooling effect. This allows for better cooling of metal region R1 of pre-pressed component 120, thereby enabling faster cooling and solidification of the hot-melt material between flange 21 and packaging sleeve 10 in overlapping region S1 after bonding.

[0074] For example, as shown in FIG5 , the centerline of the cooling channel 121 can be a straight line, and the two ports 1210 of the cooling channel 121 are located on two oppositely disposed sidewalls of the pre-pressed part 120. Of course, the disclosed embodiments do not limit the structure of the cooling channel 121 and the locations of the two ports 1210. For example, to increase the volume of the cooling channel 121, the centerline of the cooling channel 121 can be a broken line or a curve. For example, the two ports 1210 of the cooling channel 121 can be located on the same sidewall or on two adjacent sidewalls.

[0075] Figure 6 is a schematic structural diagram of another pre-pressed component shown in Figure 1. As shown in Figure 6, the center line of the cooling channel 121 is a broken line, thereby increasing the cooling area of ​​the cooling channel 121 and better cooling the pre-pressed component 120.

[0076] For example, as shown in FIG. 6 , the center line of the cooling channel 121 is U-shaped, and the two ports 1210 of the cooling channel 121 are located on the same side wall of the pre-pressed component 120 .

[0077] For example, as shown in FIG6 , the two ports 1210 of the cooling channel 121 are respectively connected to the pipes 30 , so that the cooling medium can flow in and out.

[0078] FIG7 is a cooling flow chart of a pre-pressed part provided by an embodiment of the present disclosure. As shown in FIG7 , the cooling medium includes a liquid, one end of the cooling channel 121 of the pre-pressed part 120 is connected to the cooling pipe 233 of the cooling device, and the other end of the cooling channel 121 of the pre-pressed part 120 is connected to the return pipe 234 of the cooling device. For example, the cooling device also includes a cooler 231 and a distributor 232, the cooler 231 cools the cooling medium, and the distributor 232 can divert the cooled cooling medium to cool different devices or structures. The cooling process will be further explained later in this application.

[0079] Figure 8 is a cooling flow chart of another pre-pressed component provided by an embodiment of the present disclosure. As shown in Figure 8, the cooling medium includes gas, and one end of the cooling channel 121 of the pre-pressed component 120 is connected to a cold air generating device. The figure schematically shows that the cold air generating device includes a vortex tube refrigerator 252, and the vortex tube refrigerator 252 cools the cooling medium. The other end of the cooling channel 121 of the pre-pressed component 120 is connected to an exhaust pipe 251. The cooling generating device adopts gas cooling, which can avoid the risk of leakage of the cooling medium to the product compared with other cooling media. For example, the cooling medium can be clean compressed air. The cooling process will be further explained later in this application.

[0080] Figure 9 is a schematic diagram of an exploded structure of the pre-pressed pressed part shown in Figure 3 , and Figure 10 is a schematic diagram of the structure of the first metal part shown in Figure 9 . As shown in Figures 3 , 9 , and 10 , the pressing surface 111 of the pre-pressed pressed part 120 further includes a flexible region R2 surrounding the metal region R1 . The pre-pressed pressed part 120 includes a first metal part 122 and a flexible sleeve 123 . The first metal part 122 includes a base 122a and a protrusion 122b protruding from the base 122a . The flexible sleeve 123 covers the base 122a . The metal region R1 is located on the protrusion 122b , and the flexible region R2 is located on the flexible sleeve 123 . When the pre-pressed pressed part 120 and the other pressed parts 110 cooperate with each other, because the flexible sleeve 123 is flexible and has a certain amount of deformation, the flexible sleeve 123 and the flexible area R2 located on the flexible sleeve 123 can absorb the deviation when the pre-pressed pressed part 120 and the other pressed parts 110 cooperate with each other, so that the pressing surfaces 111 of the pre-pressed pressed part 120 and the other pressed parts 110 can fully fit with the packaging sleeve 10, thereby pushing the packaging sleeve 10 to better engage with the flange 21. For example, the deviation can be assembly deviation, dimensional deviation between various components, or movement deviation.

[0081] For example, as shown in FIG. 10 , the height of the protrusion 122 b protruding from the base 122 a is substantially the same as the thickness of the flexible sleeve 123 .

[0082] For example, the material of the flexible sleeve 123 may be silicone or the like.

[0083] Table 1 is a test summary table of the leakage problem at the longitudinal seam position of the packaging sleeve before and after improvement. As shown in Table 1, the entire pressing surface of the pre-pressed pressed part before improvement is a flexible area. After four different test conditions, the liquid in the packaging sleeve has leakage problems at the longitudinal seam position. The improved pre-pressed pressed part adopts the pre-pressed pressed part provided by the embodiment of the present disclosure. Since the pressing surface of the pre-pressed pressed part includes a metal area, the metal material has better thermal conductivity and can provide greater pressure. After verification under eight different test conditions, the liquid in the packaging sleeve has no leakage problems at the longitudinal seam position.

[0084] As shown in Table 1, because metal materials can provide greater pressure than flexible materials, the pre-pressing pressure in the improved test was lower than before, thus saving energy and reducing costs. Furthermore, the heating temperature of the packaging sleeve in the improved test has a wider and lower range of values ​​than before, further saving energy and reducing costs.

[0085] Table 1

[0086] Figure 11 shows schematic cross-sectional views of the packaging sleeve at the longitudinal seam before and after improvement. Figures (a), (b), and (c) in Figure 11 are schematic cross-sectional views of a package manufactured using a pre-pressed component before the improvement at the longitudinal seam. The entire pressing surface of the pre-pressed component before the improvement is a flexible zone. (a), (b), and (c) respectively cut through three different locations where the packaging sleeve 10 and the flange 21 meet. It can be seen that the packaging sleeve 10 and the flange 21 exhibit varying degrees of poor sealing at positions (a) and (b). In (a), the packaging sleeve 10 and the flange 21 exhibit poor adhesion at triangular region S2. In (b), the adhesive (e.g., the adhesive may be the inner layer of the hot-melt material of the packaging sleeve) within triangular region S2 contains multiple bubbles 40. Combined with the test results in Table 1, packages manufactured using the pre-pressed component 120 before the improvement are prone to leakage at the longitudinal seam 11.

[0087] (d), (e) and (f) in Figure 11 are schematic cross-sectional views of the packaging manufactured using the pre-pressed pressed part provided by the embodiment of the present disclosure at the longitudinal seam position. The cutting positions of (d), (e) and (f) are the same as (a), (b) and (c), respectively. It can be seen that the packaging sleeve 10 and the flange 21 are well joined at the longitudinal seam position. Combined with the test results in Table 1, the pre-pressed pressed version provided by the embodiment of the present disclosure solves the leakage problem at the longitudinal seam 11 position.

[0088] Figure 12 is a schematic structural diagram of another pre-pressed pressed part shown in Figure 1. As shown in Figure 12, the entire pressing surface 111 of the pre-pressed pressed part 120 is a metal region R1. For example, the material of the pre-pressed pressed part 120 is metal.

[0089] In this example, the entire pressing surface 111 of the pre-pressed pressing member 120 is a metal region R1. This metal region R1 not only allows the adhesive between the packaging sleeve 10 and the flange 21 (for example, the adhesive may be the inner layer of the packaging sleeve's hot-melt material) to quickly cool and solidify, preventing the adhesive from sticking and drawing out bubbles that would affect the sealing effect between the packaging sleeve 10 and the flow-guiding component 20, but also, because the metal region R1 of the pressing member 110 does not deform, after the metal region R1 of the pressing member 110 and the packaging sleeve 10 are attached, the metal region R1 of the pressing member 110 does not damage the pattern on the packaging sleeve 10, thereby improving the packaging yield rate. Furthermore, metal materials exert greater pressure than flexible materials, thereby achieving a better bonding effect between the packaging sleeve 10 and the flange 21.

[0090] Figure 13 is a schematic structural diagram of a pre-folded pressed part shown in Figure 1; Figure 14 is a schematic diagram of the intermediate state of the package after being pressed by the pressing assembly in Figure 1; and Figure 15 is a schematic cross-sectional diagram along the sectional plane perpendicular to the longitudinal direction of the packaging sleeve in Figure 1. As shown in Figures 1 and 13 to 15, the packaging sleeve 10 includes a plurality of side surfaces, and the plurality of side surfaces include a first side surface 12 and a second side surface 13 connected to each other. The plurality of pressed parts 110 include a pre-folded pressed part 130 arranged in cooperation with the pre-folded pressed part 120; the pre-folded pressed part 130 is constructed to use the pressing surface 111 of the pre-folded pressed part 130 to push the second side surface 13 to the flange 21 so that part of the second side surface 13 is engaged with the flange 21; the pre-folded pressed part 120 is constructed to use the pressing surface 111 of the pre-folded pressed part 120 to push the first side surface 12 to the flange 21 so that part of the first side surface 12 is engaged with the flange 21.

[0091] As shown in Figures 14 and 15, the packaging sleeve 10 includes an ear wing portion 14, which is formed when the first side surface 12 and the second side surface 13 are both engaged with the flange 21. The ear wing portion 14 includes a first ear wing area 15 located on the first side surface 12 and a second ear wing area 16 located on the second side surface 13.

[0092] For example, as shown in Figures 13 to 15, the pressing surface 111 of the pre-folded molded part 130 includes three regions: a central region 111a and two side regions 111b (only one side region 111b is shown in the figures, and the other side region is located on the opposite side of the side region 111b). The central region 111a and the two side regions 111b are located on different surfaces. When the pressing surface 111 of the pre-folded molded part 130 pushes the second side surface 13 to the flange 21, the central region 111a contacts the area of ​​the second side surface 13 that is connected to the flange 21, and the two side regions 111b contact the two second ear wing areas 16 respectively.

[0093] For example, as shown in Figure 15, the plurality of pressing members 110 include a pair of pre-pressing pressing members 120 and a pair of pre-folding pressing members 130. For example, as shown in Figures 1 and 13 to 15, the pair of pre-folding pressing members 130 move toward each other and toward the packaging sleeve 10, so that the pressing surfaces 111 of the pre-folding pressing members 130 push the second side surface 13 to the flange 21, so that a portion of the second side surface 13 is engaged with the flange 21; the pre-folding pressing members 130 are kept stationary, and the pair of pre-pressing pressing members 120 move toward each other and toward the packaging sleeve 10, so that the pressing surfaces 111 of the pre-folding pressing members 130 push the first side surface 12 to the flange 21, so that the first side surface 12 is engaged with the flange 21. When the first side surface 12 and the second side surface 13 are both combined with the flange 21, the ear wing portion 14 is formed under the mutual cooperation of the adjacent pre-pressed pressed parts 120 and the pre-folded pressed parts 130, and the adjacent pre-pressed pressed parts 120 and the pre-folded pressed parts 130 cooperate with each other to compress and seal the ear wing portion 14.

[0094] FIG15 schematically shows the positional relationship among a plurality of pressed parts 110 , the packaging sleeve 10 , and the flange 21 , as well as the structure of the ear wing portion 14 , but FIG15 is not intended to limit the present disclosure.

[0095] For example, the ear wing portion 14 of the package shown in FIG. 14 is further folded to attach the ear wing portion 14 to the second side surface 13 , thereby obtaining the package structure shown in FIG. 2 .

[0096] In some examples, as shown in FIG13 , the entire pressing surface 111 of the pre-folded pressed part 130 is a metal region R1. For example, the pre-folded pressed part 130 is made of metal. Thus, the metal region R1 of the pre-folded pressed part 130 allows the hot-melt material between the flange 21 and the packaging sleeve 10 to cool and solidify quickly after bonding, preventing adhesive adhesion. Furthermore, because the metal material does not deform, the pre-folded pressed part 130 does not damage the pattern on the packaging sleeve 10 after the pressing surface 111 of the pre-folded pressed part 130 is bonded to the packaging sleeve 10, thereby improving the packaging yield rate.

[0097] Table 2 summarizes the testing of packages produced using the pre-pressed molded parts shown in Figure 12 and the pre-folded molded parts shown in Figure 13. Figure 16 shows the appearance of the packages after the tests in Table 2. As shown in Table 2, the yield rate of the packaging patterns reached 100% under all five different testing conditions. Furthermore, no leakage was observed after 1-hour, 3-hour, and 24-hour leakage tests. As shown in Figure 16, the patterns on the various side surfaces of the package were intact.

[0098] Table 2

[0099] Figure 17 is a schematic structural diagram of another pre-stressed pressed part shown in Figure 1; Figure 18 is a schematic cross-sectional diagram of the pre-folded pressed part in Figure 13; and Figure 19 is an enlarged schematic partial cross-sectional diagram of the pre-stressed pressed part in Figure 17 and the pre-folded pressed part in Figure 18 when they are mated. As shown in Figures 17 to 19, the pressing surface 111 of the pre-stressed pressed part 120 includes a groove 1110, and the pressing surface 111 of the pre-folded pressed part 130 mating with the pre-stressed pressed part 120 includes a protrusion 1111. When the pressing surface 111 of the pre-folded pressed part 130 pushes the second side surface 13 and the pressing surface 111 of the pre-folded pressed part 120 pushes the first side surface 12 so that both the first side surface 12 and the second side surface 13 are engaged with the flange 21, the protrusion 1111 of the pre-folded pressed part 130 is located in the groove 1110 of the pre-stressed pressed part 120. In order to clearly illustrate the structural features and matching relationship of the groove 1110 of the pre-pressed component 120 and the protrusion 1111 of the pre-folded component 130, other structures in Figure 19, such as the packaging sleeve between the protrusion 1111 and the groove 1110, are omitted and not shown.

[0100] In this example, when the entire area of ​​the pressing surface 111 of the pre-pressed part 120 and the pre-folded part 130 is a metal area, when deviation occurs, for example, the deviation may be an assembly deviation, a dimensional deviation between components, or a motion deviation, etc., since the metal material cannot be deformed, the pressing surface 111 of the pre-pressed part 120 may not be able to completely fit with the first side surface 12 and push the first side surface 12 to engage with the flange 21, or the pressing surface 111 of the pre-folded part 130 may not be able to completely fit with the second side surface 13 and push the second side surface 13 to engage with the flange 21, thereby causing the problem of poor engagement between the packaging sleeve 10 and the flange 21. By providing a groove 1110 on the pressing surface 111 of the pre-pressing part 120 that matches the protrusion 1111, when the pre-pressing part 120 and the pre-folding part 130 are matched, the protrusion 1111 of the pre-folding part 130 can fall into the groove 1110 of the pre-pressing part 120, thereby avoiding the protrusion 1111 of the pre-folding part 130 affecting the fit between the pressing surface 111 of the pre-pressing part 120 and the first side surface 12, so that the pre-pressing part 120 can be well fitted with the first side surface 12 and push the first side surface 12 to engage with the flange 21.

[0101] For example, as shown in Figure 19, the opening width d1 of the groove 1110 is greater than the maximum width d2 of the protrusion 1111. Therefore, when the pre-pressed pressed part 120 and the pre-folded pressed part 130 are matched, the protrusion 1111 of the pre-folded pressed part 130 can better fall into the groove 1110 of the pre-pressed pressed part 120, better absorbing the deviation mentioned above.

[0102] Table 3 summarizes the testing of packages produced using the pre-pressed molded parts shown in Figure 17 and the pre-folded molded parts shown in Figure 18. As shown in Table 3, after verification under five different test conditions, the packaging pattern yield reached 100%. Furthermore, no leakage was observed after 1-hour, 3-hour, and 24-hour leakage tests.

[0103] Table 3

[0104] Figure 20 is a schematic diagram of the structure of another pre-folded pressed part shown in Figure 1; Figure 21 is a schematic diagram of the disassembled version of Figure 20; and Figure 22 is a schematic diagram of the structure of the second metal member and the flexible member shown in Figure 20. As shown in Figures 20-22, at least a portion of the pressing surface 111 of the pre-folded pressed part 130 is a flexible region R2. Referring to Figures 14 and 15, the pre-folded pressed part 130 is constructed such that when the pressing surface 111 of the pre-folded pressed part 130 pushes against the second side surface 13, the flexible region R2 at least contacts the second ear wing region 16.

[0105] In this example, referring to Figures 14 and 15, the pre-stressed part 120 and the pre-folded part 130 cooperate with each other to form the ear wing portion 14. By making the flexible area R2 of the pre-folded part 130 contact the second ear wing area 16, when forming the ear wing portion 14, the pre-stressed part 120 and the flexible area R2 of the pre-folded part 130 cooperate with each other, avoiding the situation where metal areas cooperate with each other when forming the ear wing portion 14. When metal areas cooperate with each other, the tolerance for deviation is poor, and the flexible area R2 of the pre-folded part 130 can be deformed, which can better absorb the deviation mentioned above, so that the pre-stressed part 120 can fit well with the first side surface 12 and push the first side surface 12 to engage with the flange 21.

[0106] In some examples, as shown in Figures 20 to 22, the pre-folded molded part 130 includes a second metal part 131 and a flexible part 132 connected to the second metal part 131, and the entire area of ​​the pressing surface 111 of the pre-folded molded part 130 is located on the flexible part 132. Thus, the entire area of ​​the pressing surface 111 of the pre-folded molded part 130 is the flexible area R2, and the flexible area R2 is located on the flexible part 132.

[0107] For example, as shown in FIG. 20 to FIG. 22 , the material of the flexible member 132 includes but is not limited to silicone, and the material of the second metal member 131 is metal.

[0108] For example, as shown in Figures 20 to 22, the flexible member 132 includes two through-holes 1320, and the second metal member 131 includes two through-holes 1310. Two fasteners 50 respectively pass through the two through-holes 1320 of the flexible member 132 and connect with the two through-holes 1310 of the second metal member 131 to achieve the connection between the flexible member 132 and the second metal member 131. For example, the two through-holes 1310 of the second metal member 131 have threads that mate with the two fasteners 50. The fasteners 50 can improve the connection strength and stability between the flexible member 132 and the second metal member 131. Of course, the embodiment of the present disclosure does not limit the connection method between the two.

[0109] For example, as shown in Figures 21 and 22, the side of the flexible part 132 close to the second metal part 131 also includes three positioning columns 1321, and the side of the second metal part 131 close to the flexible part 132 also includes three positioning grooves 1311. The three positioning columns 1321 and the three positioning grooves 1311 are arranged in a one-to-one correspondence. When the flexible part 132 is connected to the second metal part 131 through the fastener 50, the three positioning columns 1321 are respectively located in the three positioning grooves 1311, thereby ensuring that the flexible part 132 is installed in place.

[0110] Figure 23 is a schematic diagram of another disassembled pre-folded pressed part shown in Figure 1. As shown in Figure 23, pre-folded pressed part 130 includes a second metal member 131 and a flexible member 132 connected to the second metal member 131. The entire pressing surface 111 of pre-folded pressed part 130 is located on the flexible member 132. Therefore, the entire pressing surface 111 of pre-folded pressed part 130 is a flexible region R2, and the flexible region R2 is located on the flexible member 132.

[0111] As shown in FIG23 , the pre-folded pressed component 130 further includes a rigid support structure 133, which is connected between the flexible component 132 and the second metal component 131 and is configured to support the flexible component 132. During the process of the pre-folded pressed component 130 pressing the packaging sleeve 10, the rigid support structure 133 can better support the flexible component 132, thereby making the packaging sleeve 10 and the guide component 20 more firmly bonded together, thereby improving the working efficiency of the pre-folded pressed component 130.

[0112] For example, as shown in FIG. 23 , the material of the rigid support structure 133 includes, but is not limited to, metal.

[0113] For example, as shown in FIG23 , the rigid support structure 133 includes two through-holes 1330. Two fasteners 50 pass through the two through-holes 1320 of the flexible member 132, the two through-holes 1330 of the rigid support structure 133, and the two through-holes 1310 of the second metal member 131, respectively, to connect the flexible member 132, the rigid support structure 133, and the second metal member 131. The fasteners 50 can improve the connection strength and stability between the flexible member 132, the rigid support structure 133, and the second metal member 131. Of course, the embodiment of the present disclosure does not limit the connection method of the three.

[0114] Figure 24 is a schematic diagram of the structure of the flexible member shown in Figure 23; Figure 25 is a schematic diagram of the structure of the rigid support structure shown in Figure 23; and Figure 26 is a schematic diagram of the structure of the second metal member shown in Figure 23. Figure 24 shows the structure of the flexible member from two opposite directions, Figure 25 shows the structure of the rigid support structure from two opposite directions, and Figure 26 shows the structure of the second metal member from two opposite directions.

[0115] For example, as shown in Figures 23 to 25, the flexible member 132 can be a flexible sleeve, and the flexible member 132 is sleeved on the rigid support structure 133, so that the rigid support structure 133 can support the multiple elastic areas R2 shown in Figure 23, so that the pre-folded pressed part 130 has a better pressing effect.

[0116] For example, as shown in FIG. 23 to FIG. 25 , the flexible member 132 includes an opening 1322 , and the flexible member 132 is sleeved on the rigid support structure 133 through the opening 1320 .

[0117] For example, as shown in Figures 23, 25 and 26, the side of the rigid support structure 133 close to the second metal part 131 also includes two positioning columns 1331, and the side of the second metal part 131 close to the rigid support structure 133 also includes two positioning grooves 1311. The two positioning columns 1331 and the two positioning grooves 1311 are arranged in a one-to-one correspondence. When the rigid support structure 133 is connected to the second metal part 131 through the fastener 50, the two positioning columns 1331 are respectively located in the two positioning grooves 1311, thereby ensuring that the rigid support structure 133 is installed in place.

[0118] Table 4 summarizes the testing of packages produced using the pre-pressed molded parts shown in Figure 12 and the pre-folded molded parts shown in Figure 23. As shown in Table 4, after verification under five different test conditions, the packaging pattern yield reached 100%. Furthermore, no leakage was observed after 1-hour, 3-hour, and 24-hour leakage tests.

[0119] Table 4

[0120] Table 5 is a summary table of packaging tests after the core rod for fixing the packaging sleeve is deflected by 0.2 degrees based on Table 4. By deflecting the core rod for fixing the packaging sleeve by 0.2 degrees, it can be used to simulate possible deviations to verify the tolerance or absorption capacity of the pre-pressed pressed part shown in Figure 12 and the pre-folded pressed part shown in Figure 23 for deviations. As shown in Table 5, after verification under five different test conditions, the yield rate of the packaging pattern reached 100%, and after 1 hour, 3 hours and 24 hours of leakage testing, no leakage problems occurred in the packaging. Therefore, the use of the pre-pressed pressed part shown in Figure 12 and the pre-folded pressed part shown in Figure 23 can better absorb deviations and further improve the yield rate of the product.

[0121] Table 5

[0122] Table 6 summarizes the packaging tests performed after varying the pre-folded blank pressure based on Table 4. As shown in Table 6, after reducing the pre-folded blank pressure, the packaging pattern yield reached 100% across five different test conditions. Furthermore, no leakage was observed after 1-hour, 3-hour, and 24-hour leakage tests. Therefore, even with reduced pre-folded blank pressure, packaging tests still met the requirements. Therefore, the pre-folded blank shown in Figure 12 and Figure 23 can accommodate a wider range of pressures. For example, reducing the pre-folded blank pressure can reduce energy consumption and lower costs.

[0123] Table 6

[0124] Figure 27 is a schematic structural diagram of another pre-folded molded product shown in Figure 1. Referring to Figures 2, 14 and 15, the second side surface 13 further includes a joining area 13a, which covers the flange 21 when the second side surface 13 is joined to the flange 21.

[0125] As shown in Figure 27, the pressing surface 111 of the pre-folded molded part 130 includes a flexible area R2 and a metal area R1. The pre-folded molded part 130 is constructed as follows: when the pressing surface 111 of the pre-folded molded part 130 pushes the second side surface 13 to the flange 21, the metal area R1 of the pre-folded molded part 130 at least contacts the joining area 13a.

[0126] In this example, the pressing surface 111 of the pre-folded pressed part 130 includes a flexible area R2 and a metal area R1. When the pressing surface 111 of the pre-folded pressed part 130 pushes the second side surface 13 to the flange 21, the flexible area R2 corresponds to at least the second ear wing area 16 of the packaging sleeve 10, and the metal area R1 corresponds to at least the bonding area 13a of the packaging sleeve 10. The flexible area R2 of the pre-folded pressed part 130 can deform to absorb deviations, allowing both the pre-folded pressed part 120 and the pre-folded pressed part 130 to fit the packaging sleeve 10, ensuring the accuracy of the packaging molding. The metal area R1 of the pre-folded pressed part 130 will not deform, thereby preventing damage to the pattern within the bonding area 13a of the packaging sleeve 10, thereby improving the packaging yield rate.

[0127] Figure 28 is a disassembly diagram of Figure 27; Figure 29 is a cross-sectional diagram of Figure 27; and Figure 30 is a structural diagram of the second metal part shown in Figure 27. As shown in Figures 27 to 30, the pre-folded pressed component 130 includes a second metal part 131, a flexible part 132 connected to the second metal part 131, and a metal sub-block 134 embedded in the flexible part 132. The metal area R1 of the pressing surface 111 of the pre-folded pressed component 130 is located on the metal sub-block 134, and the flexible area R2 of the pressing surface 111 of the pre-folded pressed component 130 is located on the flexible part 132. In this example, the metal sub-block 134 embedded in the flexible part 132 can also support the flexible part 132, so that the pre-folded pressed component 130 has a better pressing effect and improves the pressing efficiency of the pre-folded pressed component 130.

[0128] For example, the metal sub-block 134 can be integrally formed with the flexible member 132 , and the metal sub-block 134 can be placed in a mold of the flexible member 132 and integrally formed with the flexible member 132 . For example, the metal sub-block 134 can also be snapped onto the flexible member 132 .

[0129] For example, as shown in Figures 27 to 29, the metal sub-block 134 includes two vias 1340. Two fasteners 50 pass through the two vias 1320 of the flexible member 132, the two vias 1340 of the metal sub-block 134, and the two vias 1310 of the second metal member 131, respectively, to connect the flexible member 132, the metal sub-block 134, and the second metal member 131. The fasteners 50 can improve the connection strength and stability between the flexible member 132, the metal sub-block 134, and the second metal member 131. Of course, the embodiment of the present disclosure does not limit the connection method of the three.

[0130] The present disclosure provides an apparatus for manufacturing packaging. The apparatus includes any of the aforementioned pressing assemblies. Thus, the apparatus has the same beneficial technical effects as the pressing assembly, which are not further described here.

[0131] Figure 31 is a schematic diagram of the overall structure of an apparatus for manufacturing packaging, provided in one embodiment of the present disclosure; Figure 32 is an enlarged schematic diagram of the mandrel wheel shown in Figure 31. As shown in Figures 31 and 32, the apparatus 200 includes a mandrel wheel 210 and a filling device 220. The mandrel wheel 210 shown in the figures includes nine core rods 211. During operation, the mandrel wheel 210 periodically rotates counterclockwise. The filling device 220 includes a conveyor device 222 with a bin 221, which moves clockwise.

[0132] As shown in Figures 31 and 32 , when the mandrel wheel 210 includes nine core rods 211, a full rotation of the mandrel wheel 210 can be spatially divided into nine sections. These nine sections can be referred to as nine mandrel wheel positions, corresponding to Roman numerals I to IX in the figures. Each mandrel wheel position corresponds to a process. Therefore, one rotation of the mandrel wheel 210 can complete nine separate processes. The presently disclosed embodiment does not impose any restrictions on the number of core rods 211 or the number of mandrel wheel positions.

[0133] For example, as shown in Figures 31 and 32, in mandrel wheel position I, the supply device 212 pushes the guide member 20 onto the empty mandrel 211. Mandrel wheel 210 is rotated to mandrel wheel position II, causing the packaging sleeve 10 to pass over the guide member 20 previously pushed and held on mandrel 211 and be pushed onto mandrel 211. Mandrel wheel 210 is further rotated to mandrel wheel position III, where the heating device 213 activates the end of the packaging sleeve 10 and the guide member 20 with hot air. Mandrel wheel 210 is further rotated to mandrel wheel position IV, where the same process as in mandrel wheel position III is repeated to enhance the heat activation effect. For example, a slide valve 214 is provided between mandrel wheel positions IV and V. This slide valve 214 pushes the packaging sleeve 10, which has been pushed onto mandrel 211, from the intermediate position to the end position. The mandrel wheel 210 continues to rotate to mandrel wheel position V, where the pressing element 110 of the pressing assembly described above pushes the packaging sleeve 10 toward the guide member 20, so that the end of the packaging sleeve 10 engages the flange 21. The mandrel wheel 210 continues to rotate to mandrel wheel position VI, where the heating device 213 activates the tabs of the packaging sleeve 10 with hot air. The mandrel wheel 210 continues to rotate to mandrel wheel position VII, where the corner press 215 flips the tabs 14 so that they adhere to the side surface of the packaging sleeve 10. The mandrel wheel 210 continues to rotate to mandrel wheel position VIII, where the package is extracted from the core rod 211 and received by the bin 221 of the conveyor 222. The mandrel wheel 210 continues to rotate to mandrel wheel position VI. There is no dispensing process at mandrel wheel position IX, and the mandrel wheel 210 continues to rotate back to the initial mandrel wheel position I. The above schematically illustrates the nine working steps of the device 200 , which are not limited in the embodiment of the present disclosure.

[0134] After completing the process on spindle wheel 210, at spindle wheel position VIII, the package is transferred to bin 221 of conveyor device 222, with the open bottom area of ​​the package facing outward. Filling device 220 comprises a pre-treatment device 223, a filling device 224, and a sealing device 225. Furthermore, filling device 220 also includes a monitoring device 226. With the assistance of monitoring device 226, pre-treatment device 223 performs sterile rinsing and other pre-treatment operations on the package. Filling device 224 fills the package with the contents, and sealing device 225 seals and seals the bottom of the package. The filled package is then conveyed through monitoring device 226 and removed from bin 221.

[0135] For example, as shown in FIG7 , the device 200 may further include a cooling device, and FIG7 schematically shows that the cooling device includes a cooler 231, a distributor 232, a cooling pipe 233, and a return pipe 234. The cooling device can be used to cool the core rod 211 of the device 200, to cool the electrical cabinet 240 that provides power to the device 200, and to cool the pressed part 110 in the embodiment of the present disclosure. The pressed part 110 ( FIG7 schematically shows a pre-pressed pressed part 120, or a pre-folded pressed part 130) includes a cooling channel 121. The cooling medium flowing out of the cooler 231 is distributed by the distributor 232 and then flows to the core rod 211, the electrical cabinet 230, and the pressed part 110 through the cooling pipe 233. For example, when a cooling channel 121 is provided in the pressed part 110, it is only necessary to add a cooling pipe 233 from the distributor 232, without adding any other additional equipment, to achieve cooling of the pressed part 110, and the modification to the entire device 200 is minimal.

[0136] For example, as shown in Figure 8, when a cooling channel 121 is provided in the pressed part 110 (Figure 8 schematically shows a pre-pressed pressed part 120, or a pre-folded pressed part 130), the cooling medium may be compressed air. In this case, the device 200 may include a cold air generating device. Figure 8 schematically shows that the cold air generating device is a vortex tube refrigerator 252. One end of the cooling channel 121 of the pressed part 110 is connected to the cold air generating device, and the other end of the cooling channel 121 is connected to the exhaust duct 251. Compared with other cooling equipment, the cold air generating device is small in size and easy to install. The cooling temperature of the cooling generating device can reach minus 10 degrees Celsius.

[0137] 8 , clean compressed air passes through vortex tube cooler 252 and becomes cold air, which flows into cooling channel 121 of pressed part 110 to cool pressed part 110 and is then discharged from exhaust duct 251. Of course, the disclosed embodiments do not limit the type of cold air generating device.

[0138] There are a few points to note:

[0139] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to conventional designs.

[0140] (2) Unless there is any conflict, the features of the same embodiment and different embodiments of the present disclosure may be combined with each other.

[0141] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A pressing assembly for making a package, wherein: The packaging comprises a packaging sleeve extending in a longitudinal direction and a guide component engaged with an end of the packaging sleeve in the longitudinal direction, wherein the guide component comprises a flange for engaging with the packaging sleeve. The pressing assembly includes a plurality of pressing pieces arranged around the packaging sleeve, each of the pressing pieces includes a pressing surface, and each of the pressing pieces is configured to use the pressing surface to push the packaging sleeve to the guide component so that the end of the packaging sleeve and the flange engage with each other, wherein at least a portion of the pressing surface of at least one of the pressing pieces is a metal area, so that when the pressing piece pushes the packaging sleeve to the guide component, the packaging sleeve is located between the flange and the metal area.

2. The pressing assembly according to claim 1, wherein: The packaging sleeve has a longitudinal seam sealed along the longitudinal direction, and the longitudinal seam has an overlapping area with the flange. Wherein, the at least one pressing part comprises a pre-pressing pressing part facing the longitudinal seam, the pressing surface of the pre-pressing pressing part is provided with the metal area, and when the pre-pressing pressing part pushes the packaging sleeve to the flange, the metal area at least covers the overlapping area.

3. The pressing assembly according to claim 2, wherein: The pre-pressed pressed part is also provided with a cooling channel, in which a flowing cooling medium is provided, and the cooling medium at least cools the metal zone.

4. The pressing assembly according to claim 3, wherein: The cooling medium includes liquid, one end of the cooling channel is connected to a cooling pipe of a cooling device, and the other end of the cooling channel is connected to a return pipe of the cooling device.

5. The pressing assembly according to claim 3, wherein: The cooling medium includes gas, one end of the cooling channel is connected to a cold air generating device, and the other end of the cooling channel is connected to an exhaust pipe.

6. The pressing assembly according to any one of claims 2 to 5, wherein: The pressing surface of the pre-pressed pressed part also includes a flexible area surrounding the metal area, The pre-pressed component includes a first metal component and a flexible sleeve, wherein the first metal component includes a base and a protrusion protruding from the base, the flexible sleeve covers the base, the metal area is located on the protrusion, and the flexible area is located on the flexible sleeve.

7. A pressing assembly according to any one of claims 2 to 6, wherein: The entire pressing surface of the pre-pressed pressed part is a metal area.

8. The pressing assembly according to claim 7, wherein: The packaging sleeve includes a plurality of side surfaces, the plurality of side surfaces including a first side surface and a second side surface connected to each other; The plurality of pressing parts include a pre-folding pressing part arranged in cooperation with the pre-compression pressing part; the pre-folding pressing part is configured to use a pressing surface of the pre-folding pressing part to push the second side surface to the flange so that a portion of the second side surface engages with the flange; the pre-compression pressing part is configured to use a pressing surface of the pre-compression pressing part to push the first side surface to the flange so that a portion of the first side surface engages with the flange; The packaging sleeve includes an ear wing portion, which is formed when the first side surface and the second side surface are both engaged with the flange, and the ear wing portion includes a first ear wing area located on the first side surface and a second ear wing area located on the second side surface; The plurality of pressing members include a pair of pre-folding pressing members arranged opposite to each other and a pair of pre-pressing pressing members arranged opposite to each other.

9. The pressing assembly according to claim 8, wherein: At least a portion of the pressing surface of the pre-folded pressed component is a flexible area, and the pre-folded pressed component is constructed so that when the pressing surface of the pre-folded pressed component pushes the second side surface, the flexible area at least contacts the second ear wing area.

10. The pressing assembly according to claim 9, wherein: The entire area of ​​the pressed surface of the pre-folded pressed part is a flexible area. The pre-folded pressed component comprises a second metal component and a flexible component connected to the second metal component, and the flexible area is located on the flexible component.

11. The pressing assembly according to claim 10, wherein: The pre-folded molded part also includes a rigid support structure connected between the flexible part and the second metal part and configured to support the flexible part.

12. The pressing assembly according to claim 9, wherein: The second side surface further includes a bonding area, and when the second side surface is bonded to the flange, the bonding area covers the flange, The pressing surface of the pre-folded pressed part further comprises a metal area, and the pre-folded pressed part is configured such that when the pressing surface of the pre-folded pressed part pushes the second side surface to the flange, the metal area of ​​the pre-folded pressed part at least contacts the joining area.

13. The pressing assembly according to claim 12, wherein: The pre-folded pressed component includes a second metal component, a flexible component connected to the second metal component and a metal sub-block embedded in the flexible component. The metal area of ​​the pressed surface of the pre-folded pressed component is located on the metal sub-block, and the flexible area of ​​the pressed surface of the pre-folded pressed component is located on the flexible component.

14. An apparatus for making a package, comprising: A pressing assembly according to any one of claims 1 to 13.

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