Sealing device, sealing method and inserting corner

Abstract

The invention provides a sealing device which is applied to the technical field of sealing. The sealing device comprises a pushing head mechanism, a sealing mechanism and two inserting corners. The pushing head mechanism is used for pushing the to-be-packaged product into the packaging bag in the first direction. Grooves are formed in the two sides of the push head mechanism. Inserting corners are arranged on the two sides of the pushing head mechanism. The insert corner comprises a first sub-insert corner and a second sub-insert corner. And the length of the second sub-gusset in the second direction is greater than that of the first sub-gusset in the second direction. The second direction is perpendicular to the first direction. And the sealing mechanism is used for sealing the packaging bag. According to the technical scheme provided by the invention, the sealing quality can be improved by adopting the two sub-insert angles with different sizes.

Description

Technical Field

[0001] The present application relates to the field of sealing technology, and particularly to a sealing device, a sealing method and a corner insert. Background Art

[0002] In the process of packaging products with a packaging bag, the corner insert blocks on both sides of the packaging bag move towards the middle, thereby assisting the packaging bag to form a seal, and then the packaging bag is sealed. However, problems such as misalignment, internal folding or wrinkling of the packaging bag are likely to occur. Summary of the Invention

[0003] The present application provides a sealing device, a sealing method and a corner insert, which can improve the sealing quality by using two corner inserts of different sizes.

[0004] In a first aspect of the present application, a sealing device is provided. The sealing device includes a push head mechanism, a sealing mechanism and two corner inserts. The push head mechanism is used to push the product to be packaged into the packaging bag along a first direction. There are grooves on both sides of the push head mechanism. The corner inserts are arranged on both sides of the push head mechanism. The corner insert includes a first sub-corner insert and a second sub-corner insert. The length of the second sub-corner insert in a second direction is greater than the length of the first sub-corner insert in the second direction. The second direction is perpendicular to the first direction. It should be understood that at different coordinates in the second direction, the second sub-corner insert and the first sub-corner insert may have different lengths. Therefore, the length of the second sub-corner insert in the second direction being greater than the length of the first sub-corner insert in the second direction means that at least at one Y-axis coordinate, the length of the second sub-corner insert is greater than the length of the first sub-corner insert. The Y-axis direction is also referred to as the second direction. The sealing mechanism is used to seal the packaging bag.

[0005] In a first aspect of the present application, a sealing device is provided. The push head mechanism includes a height adjustment component, and the height adjustment component is used to adjust the pushing height of the push head mechanism in the second direction, and the second direction is perpendicular to the first direction.

[0006] In a first aspect of the present application, for the sealing device, the higher pushing height of the push head mechanism is called the first pushing height. The lower pushing height of the push head mechanism is called the second pushing height. The length of the first sub-corner insert in a third direction is greater than one-third of the first pushing height. The third direction is perpendicular to the first direction and the second direction.

[0007] In a first aspect of the present application, for the sealing device, the length of the first sub-corner insert in a third direction is greater than one-third of the height of the packaging bag in the second direction. The third direction is perpendicular to the first direction and the second direction.

[0008] In an optional manner of the first aspect, the two corner inserts and the grooves are used to assist in forming the part to be sealed of the packaging bag. During the auxiliary forming process, the first sub-corner insert is arranged inside the groove, and the second sub-corner insert is arranged outside the groove.

[0009] In an alternative embodiment of the first aspect, the length of the portion of the first sub-insertion corner disposed inside the groove in the third direction is greater than one-third of the height of the packaging bag in the second direction. The third direction is perpendicular to the first direction and the second direction.

[0010] In an alternative embodiment of the first aspect, the length of the second sub-insertion corner in the second direction is greater than the length of the groove in the second direction. It should be understood that at different coordinates in the second direction, the second sub-insertion corner and the groove may have different lengths. Therefore, the length of the second sub-insertion corner in the second direction being greater than the length of the groove in the second direction means that at least at one Y-axis coordinate, the length of the second sub-insertion corner is greater than the length of the groove. The Y-axis direction is also referred to as the second direction.

[0011] In an alternative embodiment of the first aspect, the first sub-insertion corner is connected to the second sub-insertion corner. By connecting the first sub-insertion corner and the second sub-insertion corner, the first sub-insertion corner and the second sub-insertion corner can share a driving component, thereby reducing the cost of the sealing device.

[0012] In an alternative embodiment of the first aspect, the length of the first sub-insertion corner in the first direction is between 3 mm and 13 mm. The length of the first sub-insertion corner is positively correlated with the sealing quality of the folded edge at the sealing portion, that is, the longer the length of the first sub-insertion corner, the better the sealing quality of the formed folded edge. However, the length of the first sub-insertion corner will also increase the length of the folded edge, resulting in waste of materials and a relatively large remaining space inside the packaging bag, affecting the aesthetics of the product. Therefore, in this application, by controlling the length of the first sub-insertion corner, the sealing quality can be improved while controlling the length of the folded edge.

[0013] In an alternative embodiment of the first aspect, the length of the second sub-insertion corner in the first direction is between 0.3 mm and 2.3 mm. Increasing the length of the second sub-insertion corner will result in a relatively large remaining space inside the packaging bag, affecting the aesthetics of the product. However, in this application, the second sub-insertion corner is used to form a triangular edge in the auxiliary forming process. If the length of the second sub-insertion corner is too small, the packaging bag may be torn, thus affecting the packaging quality. Therefore, in this application, by controlling the length of the second sub-insertion corner, the packaging quality can be improved.

[0014] In an alternative embodiment of the first aspect, the maximum length of the second sub-insertion corner in the second direction is between d1 mm and d mm, where d1 = d - 4 and d is the length of the packaging bag in the second direction. In the sealing technology without reducing the pushing height, the maximum length of the insertion corner is much smaller than the length of the packaging bag, resulting in relatively poor quality of the formed triangular edge. Therefore, by increasing the length of the second sub-insertion corner, the packaging quality can be improved.

[0015] In an alternative embodiment of the first aspect, the length of the second sub-insertion angle in the second direction is greater than the length of the first sub-insertion angle in the second direction.

[0016] In an alternative embodiment of the first aspect, after reducing the pushing height of the pusher mechanism in the second direction, the pushing height of the pusher mechanism in the second direction is between 5 mm and 20 mm. The lower the pushing height, the better the sealing quality formed. Therefore, the present application can improve the packaging quality.

[0017] In an alternative embodiment of the first aspect, the material for forming the groove is stainless steel. In the sealing technology without reducing the pushing height, the height of the pusher is relatively large. In order to reduce the weight of the pusher, a lighter material, such as plastic, is used. In the present application, the height of the pusher is relatively low. By using stainless steel, the strength of the pusher can be improved.

[0018] The second aspect of the present application provides a sealing method. The sealing method is applied to a sealing device. The sealing method includes the following steps: pushing the product to be packaged into the packaging bag along the first direction through the pusher mechanism; there are grooves on both sides of the pusher mechanism, and two insertion angles are provided on both sides of the pusher mechanism. Each of the two insertion angles includes a connected first sub-insertion angle and a second sub-insertion angle, and the length of the second sub-insertion angle in the second direction is greater than the length of the first sub-insertion angle in the second direction; moving the two insertion angles towards the pusher mechanism so that the first sub-insertion angle is inside the groove and the second sub-insertion angle is outside the groove; retracting the pusher mechanism; sealing the packaging bag through the sealing mechanism.

[0019] In an alternative embodiment of the second aspect, the pushing height of the pusher mechanism in the second direction is reduced.

[0020] In an alternative embodiment of the second aspect, before moving the two insertion angles towards the pusher mechanism, the sealing method further includes the following steps: retracting the pusher mechanism by a target distance. By retracting the target distance, space can be reserved for the second sub-insertion angle to form a triangular side, thereby improving the sealing quality.

[0021] In an alternative embodiment of the second aspect, the target distance is between 1 mm and 5 mm. If the target distance is too long, it may cause the first sub-insertion angle to not enter the groove during the auxiliary forming process, thereby affecting the sealing quality. Therefore, in the present application, by controlling the target distance, the sealing quality can be improved.

[0022] In an alternative embodiment of the second aspect, before reducing the pushing height of the pusher mechanism in the second direction, the method further includes:

[0023] Providing positive air pressure into the packaging bag through the pusher mechanism.

[0024] It should be understood that there are similarities between the description of the sealing method and the description of the aforementioned sealing device. Therefore, the description of the sealing method in the second aspect can refer to the description in the aforementioned first aspect or any optional manner in the first aspect. For example, the length of the first sub-corner in the first direction is between 3 mm and 13 mm. Another example, the length of the second sub-corner in the first direction is between 0.3 mm and 2.3 mm. Another example, the maximum length of the second sub-corner in the second direction is between d1 mm and d mm. Another example, after reducing the pushing height of the push head mechanism in the second direction, the pushing height of the push head mechanism in the second direction is between 5 mm and 20 mm. Another example, the material for forming the groove is stainless steel. Another example, the higher pushing height of the push head mechanism is called the first pushing height. The lower pushing height of the push head mechanism is called the second pushing height. The length of the first sub-corner in the third direction is greater than one-third of the first pushing height. The third direction is perpendicular to the first direction and the second direction.

[0025] The third aspect of the present application provides a corner. The corner includes a first sub-corner and a second sub-corner. The length of the second sub-corner in the Y-axis direction is greater than the length of the first sub-corner in the Y-axis direction.

[0026] It should be understood that there are similarities between the description of the corner and the description of the aforementioned sealing device. Therefore, the description of the corner in the third aspect can refer to the description in the aforementioned first aspect or any optional manner in the first aspect. For example, the length of the first sub-corner in the first direction is between 3 mm and 13 mm. Another example, the length of the second sub-corner in the first direction is between 0.3 mm and 2.3 mm. Another example, the maximum length of the second sub-corner in the second direction is between d1 mm and d mm.

[0027] The fourth aspect of the present application provides a packaged product. The packaged product includes a packaging bag and the product inside the packaging bag. The packaged product is obtained by sealing through the sealing method described in the aforementioned second aspect or any one of the optional manners in the second aspect. Description of the Drawings

[0028] Figure 1 It is the first structural schematic diagram of the sealing device provided by the embodiment of the present application in the XY plane;

[0029] Figure 2 It is the second structural schematic diagram of the sealing device provided by the embodiment of the present application in the XY plane;

[0030] Figure 3 It is the structural schematic diagram of the head of the push head mechanism provided by the embodiment of the present application;

[0031] Figure 4 It is the third structural schematic diagram of the sealing device provided by the embodiment of the present application in the XY plane;

[0032] Figure 5 This is the first structural schematic diagram of the sealing device provided by the embodiment of the present application in the XZ plane;

[0033] Figure 6 This is the first structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0034] Figure 7 is the second structural schematic diagram of the sealing device provided by the embodiment of the present application in the XZ plane;

[0035] Figure 8 This is the second structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0036] Figure 9 This is the third structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0037] Figure 10a This is the fourth structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0038] Figure 10b This is the fifth structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0039] Figure 10c This is the sixth structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0040] Figure 10d This is the seventh structural schematic diagram of the corner insert provided by the embodiment of the present application;

[0041] Figure 11 This is the flowchart of the sealing method provided by the embodiment of the present application. Detailed implementation manners

[0042] The present application provides a sealing device, a sealing method and a corner insert. By adopting two corner inserts of different sizes, the sealing quality of the packaging bag can be improved. It should be understood that the "first", "second" or "target" etc. used in the present application are only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order. In addition, for the sake of conciseness and clarity, repeated reference numerals and / or letters are used in multiple drawings of the present application. The repetition does not indicate a strict limitation relationship between various embodiments and / or configurations.

[0043] Figure 1 This is the first structural schematic diagram of the sealing device provided by the embodiment of the present application in the XY plane. As Figure 1 shown, the sealing device includes a push head mechanism 101 and a sealing mechanism 104. The push head mechanism 101 is used to move starting from the origin and push the product to be packaged 102 into the packaging bag 103 along the first direction. In Figure 1In the example, the first direction is also the opposite direction of the X-axis direction. In practical applications, the sealing device may further include a frame, a feeding mechanism, and a bag feeding mechanism. The feeding mechanism is used to continuously provide the product 102 to be packaged. The bag feeding mechanism is used to continuously provide the packaging bag 103. After the product 102 to be packaged is pushed into the packaging bag 103, the pushing head mechanism 100 can continue to push the product 102 to be packaged and the packaging bag 103 to move in the first direction until the sealing mechanism 104 is located on both sides of the packaging bag 103.

[0044] Figure 2 This is the second structural schematic diagram of the sealing device provided by the embodiment of the present application in the XY plane. As Figure 2 shown, the sealing mechanism 104 includes an upper sealing head and a lower sealing head. The upper sealing head and the lower sealing head are located on both sides of the packaging bag 103 and are symmetrically arranged with the packaging bag 103 as the center. At this time, the pushing part of the pushing head mechanism 100 is located inside the packaging bag 103. The pushing head mechanism 101 includes a height adjustment component. The height adjustment component is used to reduce the pushing height of the pushing head mechanism 101 in the second direction, and the second direction is perpendicular to the first direction. In Figure 2 the example, the second direction is the Y-axis direction. There are grooves on both sides of the pushing head mechanism 101. The pushing head mechanism 101 may include a head 1015 and a connecting rod 1014. The grooves may be located on both sides of the head 1015.

[0045] In practical applications, the sealing device may further include two side pressing plates. In the XZ plane, the two side pressing plates are located on both sides of the pushing head mechanism 101. After the pushing head mechanism 100 pushes the product 102 to be packaged and the packaging bag 103 to move in the first direction until the sealing mechanism 104 is located on both sides of the packaging bag 103, the two side pressing plates are used to limit the movement of the packaging bag 103 and the product 102 to be packaged in the Y-axis direction and the negative Y-axis direction.

[0046] Figure 3 This is the first structural schematic diagram of the head of the pushing head mechanism provided by the embodiment of the present application. As Figure 3 shown, the front view of the head 1015 is located in the XY plane. According to the front view, side view, and top view of the head 1015, the head 1015 includes a pushing head 1011 and a height adjustment component. The height adjustment component includes a pushing plate 1012 and a driving rod 1013. The driving rod 1013 is connected to the pushing plate 1012, and the driving rod 1013 is used to pull the pushing plate 1012 to move in the X-axis direction, thereby reducing the pushing height of the pushing head mechanism 101 in the second direction. The second direction is also called the Y-axis direction. As Figure 3 shown in the side view, V-shaped grooves are provided on both sides of the pushing head 1011. It should be understood that Figure 3It is a schematic structural diagram of the head 1015 provided by an embodiment of the present application. The embodiments of the present application do not limit the structure and manner of the pushing head mechanism 101 for adjusting the pushing height. For example, the pushing plate 1012 can adjust the pushing height of the pushing head mechanism 101 by rotation or movement in the Y-axis direction. Another example is Figure 3 in which the positions of the pushing plate and the pushing head are interchanged, and the pushing height of the pushing head mechanism 101 is reduced by pushing the pushing plate to move in the negative direction of the X-axis. Similarly, the embodiments of the present application do not limit the shape of the groove. For example, the groove is an elliptical arc. The material for forming the groove can be stainless steel. Another example is that the grooves on both sides of the pushing head 1011 are opened to form a cavity. The material for forming the groove refers to the material that composes the groove in the pushing head mechanism 101. For example, in Figure 3 the pushing head 1011 forms a groove. Therefore, when the material of the pushing head 1011 is stainless steel, the material for forming the groove is stainless steel.

[0047] Figure 4 It is the third schematic structural diagram of the sealing device provided by an embodiment of the present application in the XY plane. As Figure 4 shown, the height adjustment assembly is used to reduce the pushing height of the pushing head mechanism 101 in the second direction. In the example of Figure 4 , before reducing the pushing height, the pushing height of the pushing head mechanism 101 in the second direction is the height of the pushing plate 1012; after reducing the pushing height, the pushing height of the pushing head mechanism 101 in the second direction is the height of the pushing head 1011.

[0048] Figure 5 It is the first schematic structural diagram of the sealing device provided by an embodiment of the present application in the XZ plane. As Figure 5 shown, on the basis of Figure 4 , the sealing device further includes two insertion corners. The two insertion corners include a first insertion corner 105 and a second insertion corner. The first insertion corner 105 and the second insertion corner are located on both sides of the packaging bag 103 and are symmetrically arranged with the packaging bag 103 as the center. In subsequent examples, the first insertion corner 105 is taken as an example for description.

[0049] Figure 6 It is the first schematic structural diagram of the insertion corner provided by an embodiment of the present application. As Figure 6 shown, the front view of the first insertion corner 105 is located in the YZ plane. According to the front view, side view and top view of the first insertion corner 105, the first insertion corner 105 includes a first sub-insertion corner 1051 and a second sub-insertion corner 1052. The first sub-insertion corner 1051 can be directly or indirectly connected to the second sub-insertion corner 1052. The embodiments of the present application do not limit the connection manner between the first sub-insertion corner 1051 and the second sub-insertion corner 1052. For example, it can be bolt connection, integral machining or welding, etc. After reducing the pushing height of the pushing head mechanism 101, the two insertion corners are used to move towards the pushing head mechanism 101.

[0050] Figure 7a This is the second structural schematic diagram of the sealing device provided by the embodiment of the present application in the XZ plane. As shown in FIG. 7, on the basis of Figure 5 , the two corner inserts move towards the direction of the pusher mechanism 101 to assist in forming the packaging bag. During the auxiliary forming process, the first sub-corner insert 1051 is arranged inside the groove of the pusher mechanism 101, and the second sub-corner insert 1052 is arranged outside the groove of the pusher mechanism 101. Among them, the first sub-corner insert 1051 being arranged inside the groove of the pusher mechanism 101 means that the projection of the first sub-corner insert 1051 on the XZ plane and the projection of the target area of the pusher mechanism 101 on the XZ plane have an overlapping area; the second sub-corner insert 1052 being arranged outside the groove of the pusher mechanism 101 means that the projection of the second sub-corner insert 1052 on the XZ plane and the projection of the target area of the pusher mechanism 101 on the XZ plane do not have an overlapping area. The XZ plane can also be called the second plane. The target area of the pusher mechanism 101 refers to the area where the pusher mechanism 101 has a groove in the X-axis direction and the length in the Z-axis direction is greater than two-thirds of the length of the packaging bag. In the Figure 7a example, the length of the pusher 1011 in the Z-axis direction is slightly less than the length of the packaging bag in the Z-axis direction. Therefore, the length of the pusher 1011 in the Z-axis direction is greater than two-thirds of the length of the packaging bag in the Z-axis direction. The length of the packaging bag in the Z-axis direction can be determined according to the crease, boundary line on the packaging bag, the length when the packaging bag is statically placed, the length when the sealed packaging bag is statically placed, the length of the packaging bag during the sealing process, or the size when designing the packaging bag. Figure 7b This is the fourth structural schematic diagram of the head of the pusher mechanism provided by the embodiment of the present application. As Figure 7b shown, on the basis of Figure 7a , the dotted line on the pusher 1011 represents the bottom position of the groove. At this time, there is a groove in the A1 area of the pusher 1011, and the length of the pusher 1011 in the A1 area in the Z-axis direction is greater than two-thirds of the length of the packaging bag in the Z-axis direction. Therefore, Figure 7b the A1 area of the pusher 1011 in Figure 7c This is the fifth structural schematic diagram of the head of the pusher mechanism provided by the embodiment of the present application. As Figure 7c shown, on the basis of Figure 7bOn the basis of [description above], the areas 701 and 702 are hollowed out. At this time, the pusher 1011 has grooves in the A1 and A3 areas, and the length in the Z-axis direction is greater than two-thirds of the length of the packaging bag in the Z-axis direction. The pusher 1011 has grooves in the A2 area, but the length in the Z-axis direction is less than two-thirds of the length of the packaging bag in the Z-axis direction. Therefore, the A1 and A3 areas of the pusher 1011 in Figure 7C are the target areas of the pusher mechanism 101, and the A2 area is not the target area of the pusher mechanism 101.

[0051] Before moving the two insertion corners towards the pusher mechanism 101, the pusher mechanism 101 can be used to retract by a target distance. By retracting by the target distance, a gap can be formed between the pusher mechanism 101 and the product to be packaged 102, which is reserved for the space to form a triangular edge by the second sub-insertion corner, thereby improving the sealing quality. The target distance can be between 1 millimeter and 5 millimeters.

[0052] The plane 700 is a plane perpendicular to the Z-axis direction, such as the plane where the upper edge line of the pusher mechanism 101 is located. During the auxiliary forming process, when the distance between the two insertion corners is the closest, the first insertion corner 105 is divided into two areas by the plane 700. The first area is the area where the first insertion corner 105 starts from the plane 700 and extends along the positive Z-axis direction. The second area is the area where the first insertion corner 105 starts from the plane 700 and extends along the negative Z-axis direction. According to the previous description, the sealing device may further include two side pressing plates. The two side pressing plates include a first side pressing plate and a second side pressing plate. The first side pressing plate and the first insertion corner 105 are located on one side of the pusher mechanism 101, and the second side pressing plate and the second insertion corner are located on the other side of the pusher mechanism 101. The plane 700 can be the plane where the first side pressing plate is located, such as the plane where the first side pressing plate is close to the second side pressing plate. At this time, the area of the first insertion corner 105 that extends along the positive Z-axis direction from the first side pressing plate is the first area. The area of the first insertion corner 105 that extends along the negative Z-axis direction from the first side pressing plate is the second area. In practical applications, the shape and structure of the first area have no direct relationship with the quality of the auxiliary forming. The shape and structure of the second area directly affect the quality of the auxiliary forming. Therefore, in the subsequent examples, the optimization examples of the insertion corner are all for the second area. The optimization examples of the insertion corner are described by way of example below.

[0053] In one of the examples, Figure 8 This is the second structural schematic diagram of the insertion corner provided by the embodiment of the present application. As Figure 8 shown, the first insertion corner 105 includes a connected first sub-insertion corner 1051 and a second sub-insertion corner 1052. To improve the packaging quality, the length h1 of the first sub-insertion corner 1051 in the first direction can be between 3 millimeters and 13 millimeters, and / or the length h2 of the second sub-insertion corner 1052 in the first direction can be between 0.3 millimeters and 2.3 millimeters.

[0054] In one example, Figure 9 This is the third structural schematic diagram of the corner insert provided by the embodiment of the present application. As Figure 9 shown, the first corner insert 105 includes a connected first sub-corner insert 1051 and a second sub-corner insert 1052. To improve the packaging quality, the maximum length h4 of the second sub-corner insert 1052 in the second direction can be between d1 millimeters and d millimeters. Wherein, d1 = d - 4. d is the length of the packaging bag in the second direction. And / or, the maximum length h3 of the first sub-corner insert 1051 in the second direction can be between 4 millimeters and 18 millimeters. h4 is greater than h3.

[0055] In one example, the length of the first sub-corner insert in the third direction is greater than one-third of the height of the packaging bag in the second direction. The third direction is perpendicular to the first direction and the second direction.

[0056] In one example, according to the previous description, during the auxiliary forming process, the first sub-corner insert 1051 is disposed inside the groove of the pusher mechanism 101, and the second sub-corner insert 1052 is disposed outside the groove of the pusher mechanism 101. The length of the part of the first sub-corner insert disposed inside the groove in the third direction is greater than one-third of the height of the packaging bag in the second direction. The third direction is perpendicular to the first direction and the second direction.

[0057] In one example, according to the previous description, the pusher mechanism 101 may include a height adjustment component. The height adjustment component is used to adjust the pushing height of the pusher mechanism 101. The higher pushing height of the pusher mechanism is called the first pushing height. The lower pushing height of the pusher mechanism is called the second pushing height. The length of the first sub-corner insert in the third direction is greater than one-third of the first pushing height. The third direction is perpendicular to the first direction and the second direction.

[0058] It should be understood that the foregoing Figure 6 is only a structural schematic of the corner insert provided by the embodiment of the present application. In practical applications, those skilled in the art can make adaptive modifications to the structure of the corner insert according to requirements. The following is a schematic description of possible modifications.

[0059] Figure 10a This is the fourth structural schematic diagram of the corner insert provided by the embodiment of the present application. As Figure 10a shown. The first corner insert 105 includes a connected first sub-corner insert (gray) and a second sub-corner insert (white). The first sub-corner insert and the second sub-corner insert in the first region are both rectangular in the YZ plane. The first sub-corner insert and the second sub-corner insert in the second region are both triangular in the YZ plane.

[0060] Figure 10b This is the fifth structural schematic diagram of the corner insert provided by the embodiment of the present application. As Figure 10bAs shown. The first insertion corner 105 includes a connected first sub-insertion corner (gray) and a second sub-insertion corner (white). The first sub-insertion corner and the second sub-insertion corner in the first region are both rectangular in the YZ plane and have the same area. The first sub-insertion corner in the second region is triangular in the YZ plane, and the second sub-insertion corner in the second region is trapezoidal in the YZ plane.

[0061] Figure 10c This is the sixth structural schematic diagram of the insertion corner provided by the embodiment of the present application. As Figure 10c shown. The first insertion corner 105 includes a connected first sub-insertion corner (gray) and a second sub-insertion corner (white). The first sub-insertion corner in the first region is rectangular in the YZ plane. The second sub-insertion corner in the first region is trapezoidal in the YZ plane. The first sub-insertion corner in the second region is triangular in the YZ plane, and the second sub-insertion corner in the second region is trapezoidal in the YZ plane.

[0062] Figure 10d This is the seventh structural schematic diagram of the insertion corner provided by the embodiment of the present application. As Figure 10d shown. The first insertion corner 105 includes a connected first sub-insertion corner (gray) and a second sub-insertion corner (white). The first sub-insertion corner in the first region is rectangular in the YZ plane. The second sub-insertion corner in the first region is trapezoidal in the YZ plane. The first sub-insertion corner in the second region is a combination of a triangle and a rectangle in the YZ plane, and the second sub-insertion corner in the second region is trapezoidal in the YZ plane.

[0063] In practical applications, in order to avoid the insertion corner moving too far and thus damaging the packaging bag, the length of the first sub-insertion corner in the plane 700 along the second direction can be greater than the length of the groove in the plane 700 along the second direction.

[0064] According to the description of FIG. 7 above, the two insertion corners are used to move in the direction of the pusher mechanism 101 to assist in forming the packaging bag. After the auxiliary forming, the pusher mechanism 101 retracts. The sealing mechanism 104 is used to move in the direction of the packaging bag to seal the packaging bag. During or after the sealing process, the two insertion corners retract. After the sealing is completed, the sealing mechanism 104 retracts. During or after the pusher mechanism 101 retracts to the origin, the height adjustment component of the pusher mechanism 101 is used to increase the pushing height of the pusher mechanism 101 in the second direction. For example, in Figure 3 the example, the connecting rod 1013 is used to push the pushing plate 1012 to move in the positive direction of the X-axis, thereby increasing the pushing height of the pusher mechanism 101. After completing the above functions, the sealing device can perform the actions of the next cycle, thereby performing the next packaging and sealing process.

[0065] Figure 11 This is the flow schematic diagram of the sealing method provided by the embodiment of the present application. As Figure 11As shown, the sealing method includes the following steps.

[0066] In step 1101, the product to be packaged is pushed into the packaging bag along the first direction by a push head mechanism, grooves are provided on both sides of the push head mechanism, two plug angles are provided on both sides of the push head mechanism, and each of the two plug angles includes a first sub-plug angle and a second sub-plug angle connected. The length of the second sub-plug angle in the second direction is greater than the length of the first sub-plug angle in the second direction, and the second direction is perpendicular to the first direction.

[0067] In step 1102, the two plug angles are moved toward the push head mechanism.

[0068] Move the two plug angles toward the push head mechanism so that the first sub-plug angle is located inside the groove and the second sub-plug angle is located outside the groove. The two plug angles are moved toward the push head mechanism by the driving of the driving component. When the first sub-plug angle is connected to the second sub-plug angle, the first sub-plug angle and the second sub-plug angle can share a driving component.

[0069] In step 1103, the push head mechanism is retracted.

[0070] In step 1104, the packaging bag is sealed by a sealing mechanism.

[0071] In practical applications, before moving the two plug angles toward the push head mechanism, the sealing method further includes the following steps: retracting the push head mechanism to a target distance. By retracting the target distance, a gap can be formed between the push head mechanism and the product to be packaged, which is used to reserve space for the second sub-plug angle to form a triangular edge, thereby improving the sealing quality. The target distance can be between 1 mm and 5 mm.

[0072] In practical applications, before lowering the pushing height of the push head mechanism in the second direction, the sealing method further includes the following steps: lowering the pushing height of the push head mechanism in the second direction, the second direction being perpendicular to the first direction.

[0073] It should be understood that Figure 11 There are similarities between the description of the sealing method in the above description of the sealing device. Figure 11 The description of the sealing method in Figures 1 to 10dDescriptions in any of the figures. For example, the length of the first sub-insertion corner in the first direction is between 3 mm and 13 mm. Another example, the length of the second sub-insertion corner in the first direction is between 0.3 mm and 2.3 mm. Another example, the maximum length of the second sub-insertion corner in the second direction is between d1 mm and d mm. Another example, after reducing the pushing height of the pusher mechanism in the second direction, the pushing height of the pusher mechanism in the second direction is between 5 mm and 20 mm. Another example, the material forming the groove is stainless steel. The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application.

Claims

1. A sealing device, characterized in that, It includes a pusher mechanism, a sealing mechanism and two corner inserts, where: The pusher mechanism is used to push the product to be packaged into the packaging bag along the first direction. There are grooves on both sides of the pusher mechanism, and the two corner inserts are arranged on both sides of the pusher mechanism; Each of the two corner inserts includes a first sub-corner insert and a second sub-corner insert. The length of the second sub-corner insert in the second direction is greater than the length of the first sub-corner insert in the second direction, and the second direction is perpendicular to the first direction; The sealing mechanism is used to seal the packaging bag.

2. The sealing device according to claim 1, wherein: The pusher mechanism includes a height adjustment component, and the height adjustment component is used to adjust the pushing height of the pusher mechanism in the second direction.

3. The sealing device according to claim 2, characterized in that, The higher pushing height of the pusher mechanism is called the first pushing height; the lower pushing height of the pusher mechanism is called the second pushing height. The length of the first sub-corner insert in the third direction is greater than one-third of the first pushing height, and the third direction is perpendicular to the first direction and the second direction.

4. The sealing device according to claim 1 or 2, wherein: The length of the first sub-corner insert in the third direction is greater than one-third of the height of the packaging bag in the second direction, and the third direction is perpendicular to the first direction and the second direction.

5. The sealing device according to any one of claims 1 to 4, characterized in that The length of the second sub-corner insert in the first direction is between 0.3 mm and 2.3 mm.

6. The sealing device according to any one of claims 1 to 5, characterized in that, The first sub-corner insert is connected to the second sub-corner insert.

7. An inserted corner, characterized in that, It includes a first sub-corner insert and a second sub-corner insert. The length of the second sub-corner insert in the Y-axis direction is greater than the length of the first sub-corner insert in the Y-axis direction.

8. A sealing method, characterized in that, It includes: Pushing the product to be packaged into the packaging bag along the first direction by the pusher mechanism. There are grooves on both sides of the pusher mechanism, and two corner inserts are arranged on both sides of the pusher mechanism. Each of the two corner inserts includes a first sub-corner insert and a second sub-corner insert. The length of the second sub-corner insert in the second direction is greater than the length of the first sub-corner insert in the second direction, and the second direction is perpendicular to the first direction; Moving the two corner inserts towards the pusher mechanism; Retracting the pusher mechanism; Sealing the packaging bag by the sealing mechanism.

9. The sealing method according to claim 8, wherein Before moving the two corner inserts towards the pusher mechanism, the method further includes: Reducing the pushing height of the pusher mechanism in the second direction, and the second direction is perpendicular to the first direction.

10. The sealing method according to claim 8 or 9, characterized in that, Before moving the two corner inserts towards the pusher mechanism, the method further includes: Retracting the pusher mechanism by a target distance.

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