Easily-torn sealing cup, sealing supporting mechanism thereof and sealing machine

Abstract

The utility model relates to the field of cupping equipment, and discloses an easy-to-tear sealing cup, a sealing supporting mechanism of the easy-to-tear sealing cup and a sealing machine. By means of the structural design of the sealing supporting mechanism, when the cup body is subjected to heat sealing, the cup edge is divided into two parts, one part serves as a sealing edge to be used for being subjected to heat sealing bonding with a sealing film, and the other part serves as a downward turning edge to be turned over downwards under the action of the inner ring platform wall and the groove. Therefore, during heat sealing, the sealing film is only bonded with the sealing edge and cannot be bonded with the lower turning edge. At the moment, the width of the sealing face after heat sealing is small, meanwhile, the downward turning edge inclines downwards, a gap exists between the downward turning edge and the edge of the sealing film, and under the limitation of the downward turning edge and the sealing film, the sealing cup is easier to tear. Besides, the inclined surface is arranged on the guide wall of the outer ring, so that the cup edge and the sealing film can enter the groove more easily along the direction of the inclined surface, the positions of the cup body and the sealing film are limited, the error of the heat sealing position is effectively reduced, and the heat sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of cup filling equipment, in particular to an easy-tear sealed cup and a sealing support mechanism and a sealing machine thereof. Background Art

[0002] At present, cup products are becoming more and more popular among consumers due to their portability. In order to achieve the sealing function, most cups are sealed by sealing films, that is, by placing the sealing film on the mouth of the cup, and bonding the edge of the cup and the sealing film through the heat pressure of the heat sealing device. However, there is a common problem that the sealing film is not easy to be torn off the edge of the cup after bonding. In addition, due to the design of the heat sealing structure, the heat sealing pressure is affected during heat sealing, resulting in uneven heat sealing pressure, so that the cup and the sealing film are not well sealed.

[0003] In view of this, the present utility model is proposed.

[0004] The utility model patent provides a new cup structure and a matching equipment structure, which can ensure that the sealed sealing film is easier to tear off from the edge of the cup. At the same time, the design of the heat sealing device can also make the sealing pressure more balanced to ensure the sealing integrity. Utility Model Content

[0005] The utility model aims to provide an easy-tear sealed cup and a sealing machine with a sealing support mechanism thereof, which can ensure that the sealed sealing film is easier to tear off from the edge of the cup, and at the same time the sealing pressure is more balanced to ensure the sealing integrity.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides an easy-to-tear sealed cup, which includes a cup body and a sealing film, the cup body is provided with a cup rim, the cup rim includes a sealing rim and a downward-turned rim, the inner circle of the sealing rim is connected to the cup body, the downward-turned rim is connected to the outer circle of the sealing rim, and the sealing film is covered on the cup body and is only heat-sealed and bonded to the sealing rim.

[0008] In an optional embodiment, the width of the cup edge is 4-4.5 mm, and the width of the sealing edge is 2-2.5 mm.

[0009] In an optional embodiment, the downward folded edge is inclined downward and there is a gap between the edge of the sealing film.

[0010] In an optional embodiment, the cup body is further provided with a step, and the step extends outward along the circumferential direction of the cup body, and the inner side of the sealing edge is connected to the step via an annular wall.

[0011] In a second aspect, the utility model provides a sealing support mechanism for an easy-tear sealed cup, which is used to prepare the easy-tear sealed cup as described in any of the aforementioned embodiments, the sealing support mechanism is an annular structure, which includes an inner ring platform wall, an outer ring guide wall and a connecting bottom wall, the connecting bottom wall is connected between the inner ring platform wall and the outer ring guide wall, the outer ring guide wall, the connecting bottom wall and the inner ring platform wall form a groove opening upward, the height of the outer ring guide wall is higher than the height of the inner ring platform wall, and the top of the outer ring guide wall is provided with an inclined surface inclined downward toward the inner ring platform wall, the inner ring platform wall is used to be arranged on the lower surface of the sealing edge to support the sealing edge during heat sealing bonding, and the groove is used to accommodate the lower folded edge that extends out of the inner ring platform wall and folds downward during heat sealing bonding.

[0012] In an optional embodiment, there is a gap of 0.1-0.2 mm between the outer side surface of the groove and the outer edge of the cup rim.

[0013] In an optional embodiment, the width of the inner ring platform wall is 2.0-2.5 mm, the width of the groove is 2.0-2.5 mm, and the depth of the groove is 2-3 mm.

[0014] In an optional embodiment, the lowest height of the inclined surface in the outer ring guide wall is 2.0-2.5 mm higher than the height of the inner ring platform wall; and the inclination angle of the inclined surface is 30-60°.

[0015] In an optional embodiment, the outer ring guide wall is provided with two openings, and the openings are arranged along the circumference of the outer ring guide wall and divide the outer ring guide wall into two opposite parts.

[0016] In a third aspect, the utility model provides a sealing machine for an easy-tear-seal cup, which comprises a sealing support mechanism for an easy-tear-seal cup as described in any one of the aforementioned embodiments.

[0017] The beneficial effects of the embodiments of the utility model are:

[0018] The easy-to-tear sealed cup and its sealing support mechanism and sealing machine provided by the utility model can divide the cup edge into two parts when the cup body is heat-sealed through the structural design of the sealing support mechanism, one part of which is used as the sealing edge for heat-sealing and bonding with the sealing film, and the other part is used as the lower folding edge, which is folded downward under the action of the inner ring platform wall and the groove, so that the sealing film will only be bonded with the sealing edge and will not be bonded with the lower folding edge during heat sealing. At this time, the width of the sealing surface after heat sealing is small, and at the same time, the lower folding edge is inclined downward and there is a gap with the edge of the sealing film. Under the restrictions of these two, the sealed cup provided by this embodiment is easier to tear. In addition, by setting an inclined surface on the outer ring guide wall, the cup edge and the sealing film can enter the groove more easily along the direction of the inclined surface, thereby realizing the position limitation of the cup body and the sealing film, effectively reducing the error of the heat sealing position, and thus improving the heat sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an easy-tear sealed cup provided by the first embodiment of the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 A schematic diagram of the structure of the easy-tear sealing cup provided by the first embodiment of the utility model when the sealing film is bonded;

[0023] Figure 4 A schematic diagram of the structure of a sealing support mechanism provided in the second embodiment of the utility model;

[0024] Figure 5 A cross-sectional view of a sealing support mechanism provided in a second embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing support mechanism and the easy-tear sealing cup in the second embodiment of the utility model when they cooperate to perform heat sealing;

[0026] Figure 7 It is a side view of the sealing support mechanism and the easy-tear sealing cup in the second embodiment of the utility model when they cooperate to perform heat sealing;

[0027] Figure 8 for Figure 7A partial enlarged view of point B in the middle.

[0028] Icon: 100-easy-tear sealed cup; 110-cup body; 111-cup edge; 112-sealing edge; 113-downturned edge; 114-step; 115-annular wall; 120-sealing film;

[0029] 200 - sealing support mechanism; 210 - inner ring platform wall; 220 - outer ring guide wall; 221 - inclined surface; 222 - opening; 230 - connecting bottom wall; 231 - groove. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] First embodiment

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 The present embodiment provides an easy-tear sealed cup 100, which includes a cup body 110 and a sealing film 120. The cup body 110 is provided with a cup edge 111, and the cup edge 111 includes a sealing edge 112 and a downward-turned edge 113. The inner circle of the sealing edge 112 is connected to the cup body 110, and the downward-turned edge 113 is connected to the outer circle of the sealing edge 112. The sealing film 120 is covered on the cup body 110 and is only heat-sealed and bonded to the sealing edge 112.

[0038] In this embodiment, the width of the cup edge 111 is 4-4.5 mm. The cup edge 111 is divided into two parts, one part of which is used as a sealing edge 112 (with a width of 2-2.5 mm) for heat-sealing with the sealing film 120, and the other part is used as a lower folded edge 113, which is folded downward under the action of an external device. Therefore, during heat sealing, the sealing film 120 will only bond with the sealing edge 112 but not with the lower folded edge 113.

[0039] The cup edge 111 structure of common cups at present is flat, with a width of 4-4.5mm, so the sealing surface after sealing is also 4-4.5mm, the sealing width is wide, and it is relatively difficult to tear after sealing. In this embodiment, by setting the lower folded edge 113, the lower folded edge 113 will not be attached to the sealing film 120 during heat sealing, and the width of the sealing surface after heat sealing is only 2-2.5mm. At the same time, the lower folded edge 113 is inclined downward and there is a gap with the edge of the sealing film 120. Under these two restrictions, the sealed cup provided by this embodiment is easier to tear.

[0040] In addition, the cup body 110 is also provided with a step 114, which extends outward along the circumferential direction of the cup body 110, and the inner side of the sealing edge 112 is connected to the step 114 through an annular wall 115. In this embodiment, by providing the step 114 structure, the cup body 110 is easier to place on the sealing machine, which is convenient for subsequent positioning and installation, so that the sealing position is more accurate and the sealing effect is better.

[0041] Second embodiment

[0042] See also Figure 4 and Figure 5 The present embodiment provides a sealing support mechanism 200 for an easy-tear sealed cup 100, which is used to prepare the easy-tear sealed cup 100 in the first embodiment, and can realize the preparation of an easy-tear sealed cup 100 in which only the sealing edge 112 is heat-sealed and bonded, while the downward folded edge 113 is partially folded downward and has a certain gap with the sealing film 120.

[0043] Specifically, in this embodiment, the sealing support mechanism 200 is an annular structure, which includes an inner ring platform wall 210, an outer ring guide wall 220 and a connecting bottom wall 230. The connecting bottom wall 230 is connected between the inner ring platform wall 210 and the outer ring guide wall 220. The outer ring guide wall 220, the connecting bottom wall 230 and the inner ring platform wall 210 form a groove 231 with an opening 222 facing upward.

[0044] The height of the outer ring guide wall 220 is higher than the height of the inner ring platform wall 210, and the top of the outer ring guide wall 220 is provided with an inclined surface 221 inclined downward toward the inner ring platform wall 210. The inner ring platform wall 210 is used to be set on the lower surface of the sealing edge 112 to support the sealing edge 112 during heat sealing bonding, and the groove 231 is used to accommodate the lower folded edge 113 extending out of the inner ring platform wall 210 and folded downward during heat sealing bonding.

[0045] The setting of the inclined surface 221 allows the cup edge 111 to slide along the inclined surface 221 when the cup body 110 is placed. At this time, the downward edge 113 is more likely to enter the groove 231. At the same time, the inner circle platform wall 210 can well support the sealing edge 112 of the cup body 110.

[0046] In this embodiment, the outer ring guide wall 220 is provided with two openings 222, which are arranged along the circumference of the outer ring guide wall 220 and divide the outer ring guide wall 220 into two opposite parts. The design of the opening 222 in this embodiment allows the semicircular opening portion of the sealing film 120 to be located at the opening without being affected by the outer ring guide wall 220.

[0047] The inner ring platform wall 210 is an integral annular structure, which can provide better support and prevent the cup body 110 from shaking during heat sealing. The width of the inner ring platform wall 210 is 2.0-2.5 mm, while the width of the groove 231 is 2.0-2.5 mm, and the depth of the groove 231 is 2-3 mm. It can be seen that the width of the inner ring platform wall 210 in this embodiment is consistent with the width of the sealing edge 112 of the final formed easy-tear sealed cup 100. It is proved that the sealing edge 112 and the lower turning edge 113 of the easy-tear sealing plate are formed by the cooperation of the inner ring platform wall 210 and the groove 231, and the sealing edge 112 and the lower turning edge 113 can be formed after heat sealing.

[0048] There is a gap of 0.1-0.2 mm between the outer side of the groove 231 and the outer edge of the cup edge 111. The existence of this gap indicates that the overall width of the cup edge 111 is slightly smaller than the sum of the widths of the inner platform wall 210 and the groove 231, so that the lower edge 113 can smoothly enter the groove 231 without folding or stacking on the outer side wall of the groove 231. This is conducive to ensuring that only the sealing edge 112 and the sealing film 120 are heat-sealed and bonded.

[0049] Furthermore, the lowest height of the inclined surface 221 in the outer ring guide wall 220 is 2.0-2.5 mm higher than the height of the inner ring platform wall 210; the inclination angle of the inclined surface 221 is 30-60°. In this embodiment, by controlling the height of the outer ring guide wall 220 and the inclination angle of the inclined surface 221, the cup edge 111 and the sealing film 120 can enter the groove 231 more easily along the direction of the inclined surface 221, thereby limiting the position of the cup body 110 and the sealing film 120.

[0050] It should also be noted that the supporting structure in the sealing machine currently in common use is usually a cylindrical sleeve, the outer diameter of the sleeve is consistent with the diameter of the sealing film 120, and there are 4 guide structures tightly around the sleeve, and the guide structure is a guide column with a cylindrical bottom and a conical top. When heat sealing is performed, the sealing film 120 slides onto the sleeve along the conical surface of the guide structure, and the heat sealing device performs heat sealing. Since the diameter of the heat sealing device is as large as the diameter of the sleeve, once the heat sealing device is slightly offset, it is very easy for the heat sealing device to hit the guide structure when pressing down. Once a collision occurs, it will affect the heat sealing pressure. The affected heat sealing pressure will result in incomplete sealing, and the product will leak after reaching the terminal.

[0051] In this embodiment, by setting the inclined surface 221 in the outer ring guide wall 220, the cup edge 111 and the sealing film 120 can more easily enter the groove 231 along the direction of the inclined surface 221, thereby limiting the position of the cup body 110 and the sealing film 120, effectively reducing the error of the heat sealing position, and thus improving the heat sealing effect.

[0052] See also Figure 6 , Figure 7 and Figure 8The working principle of the sealing support mechanism 200 of the easy-tear sealing cup 100 is as follows: the cup body 110 is placed on the sealing support mechanism 200 of the easy-tear sealing cup 100. At this time, the cup body 110 enters the middle hole of the sealing support mechanism 200, the step 114 of the cup body 110 contacts the inner side of the inner ring platform wall 210, the cup edge 111 slides down along the inclined surface 221 of the outer ring guide wall 220 and is supported by the inner ring platform wall 210, and the portion of the cup edge 111 that exceeds the inner ring platform wall 210 extends into the groove 231 as the downward turning edge 113. The sealing film 120 slides down onto the cup edge 111 along the inclined surface 221 of the outer ring guide wall 220. During heat sealing, the inner ring platform wall 210 supports the sealing edge 112. The heat sealing mechanism presses down at a certain temperature to make the sealing film 120 and the sealing edge 112 bonded together to achieve sealing. Since the sealing film 120 and the lower folded edge 113 are not bonded, the sealing width on the cup edge 111 is small, and there is a certain gap between the lower folded edge 113 and the sealing film 120, which is convenient for tearing the seal.

[0053] In addition, the utility model also provides a sealing machine for an easy-tear sealed cup 100, which includes the sealing support mechanism 200 of the easy-tear sealed cup 100 mentioned above. It should be understood that the sealing machine for the easy-tear sealed cup 100 also includes a conventional heat sealing mechanism, a conveying mechanism, etc., and its specific structure can refer to a conventional sealing machine, and the utility model does not make specific restrictions.

[0054] In summary, the easy-to-tear sealed cup 100 and its sealing support mechanism 200 and sealing machine provided by the utility model can make the cup body 110 divide the cup edge 111 into two parts when heat-sealing through the structural design of the sealing support mechanism 200, one part of which is used as the sealing edge 112 for heat-sealing and bonding with the sealing film 120, and the other part is used as the lower folded edge 113, which is folded downward under the action of the inner circle platform wall 210 and the groove 231, so that when heat-sealing, the sealing film 120 will only be bonded with the sealing edge 112, but not with the lower folded edge 113. At this time, the width of the sealing surface after heat sealing is small, and at the same time, the lower folded edge 113 is inclined downward and there is a gap with the edge of the sealing film 120. Under these two restrictions, the sealed cup provided by this embodiment is easier to tear. In addition, by providing a bevel 221 on the outer ring guide wall 220, the cup edge 111 and the sealing film 120 can more easily enter the groove 231 along the direction of the bevel 221, thereby limiting the position of the cup body 110 and the sealing film 120, effectively reducing the error of the heat sealing position, and thus improving the heat sealing effect.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An easy-tear sealed cup, characterized in that: It includes a cup body and a sealing film, the cup body is provided with a cup edge, the cup edge includes a sealing edge and a downward folded edge, the inner circle of the sealing edge is connected to the cup body, the downward folded edge is connected to the outer circle of the sealing edge, and the sealing film is covered on the cup body and is only heat-sealed and bonded to the sealing edge.

2. The easy-tear seal cup according to claim 1, characterized in that: The width of the cup edge is 4-4.5 mm, and the width of the sealing edge is 2-2.5 mm.

3. The easy-tear seal cup according to claim 1, characterized in that: The downward folded edge is inclined downward and has a gap with the edge of the sealing film.

4. The easy-tear seal cup according to claim 1, characterized in that: The cup body is further provided with a step, which extends outwardly along the circumferential direction of the cup body, and the inner side of the sealing edge is connected to the step via an annular wall.

5. A sealing support mechanism for an easy-tear sealed cup, used for preparing the easy-tear sealed cup as claimed in any one of claims 1 to 4, characterized in that: The sealing support mechanism is an annular structure, which includes an inner ring platform wall, an outer ring guide wall and a connecting bottom wall, the connecting bottom wall is connected between the inner ring platform wall and the outer ring guide wall, and a groove opening upward is formed between the outer ring guide wall, the connecting bottom wall and the inner ring platform wall, the height of the outer ring guide wall is higher than the height of the inner ring platform wall, and the top of the outer ring guide wall is provided with an inclined surface inclined downward toward the inner ring platform wall, the inner ring platform wall is used to be arranged on the lower surface of the sealing edge to support the sealing edge during heat sealing bonding, and the groove is used to accommodate the lower folded edge that extends out of the inner ring platform wall and folds downward during heat sealing bonding.

6. The sealing support mechanism of the easy-tear sealing cup according to claim 5, characterized in that: There is a gap of 0.1-0.2 mm between the outer side surface of the groove and the outer edge of the cup rim.

7. The sealing support mechanism of the easy-tear sealing cup according to claim 6, characterized in that: The width of the inner ring platform wall is 2.0-2.5 mm, the width of the groove is 2.0-2.5 mm, and the depth of the groove is 2-3 mm.

8. The sealing support mechanism of the easy-tear sealing cup according to claim 5, characterized in that: The lowest height of the inclined surface in the outer ring guide wall is 2.0-2.5 mm higher than the height of the inner ring platform wall; the inclination angle of the inclined surface is 30-60°.

9. The sealing support mechanism of the easy-tear sealing cup according to claim 5, characterized in that: The outer ring guide wall is provided with two openings, which are arranged along the circumference of the outer ring guide wall and divide the outer ring guide wall into two opposite parts.

10. A sealing machine for an easy-tear sealed cup, characterized in that: It comprises the sealing support mechanism of the easy-tear sealed cup as claimed in any one of claims 4 to 9.

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