Auxiliary exhaust device for high-cup milk filling

Abstract

This utility model belongs to the field of milk filling and discloses an auxiliary venting device for filling tall cup milk. It includes a support frame and at least one set of cup body extrusion components detachably mounted on the support frame. The cup body extrusion components include a first extruder and a second extruder, which form a cup body conveying channel. The distance between the extrusion working positions of the first and second extruders is less than the lateral dimension of the cup body. The two extrusion working positions can extrude relative pressure on the cup body, causing the cup body to deform and forcibly raise the milk level in the tall cup to the rim, thus expelling the air from the original milk level to the rim. Heat sealing is then completed under the extrusion state. After the cup wall springs back to its original shape, a negative pressure adsorption effect is formed inside the tall cup, causing the sealing film to automatically sink downwards and adhere tightly to the liquid surface, resulting in a smoother sealing film surface and solving the problem of physical swelling. This device is suitable for the liquid food filling industry.

Description

Technical Field

[0001] This utility model belongs to the field of milk filling, specifically an auxiliary exhaust device for filling tall cup milk. Background Technology

[0002] In the milk bottling workshop, such as Figure 1 As shown, several empty paper tall cups 11 are placed on a film plate 10 for transport. The film plate 10 has several holes, and the cup body of the tall cup 11 extends into the holes, with the cup mouth of the tall cup 11 positioned at the edge of the hole opening. After the filling machine fills the tall cups 11 with milk, the film plate 10 transfers the filled tall cups 11 to the sealing process, where a heat-sealing process is used to cover the cup mouth with a sealing film to complete the seal.

[0003] However, in current production, high-capsule milk cups (11-pack) often exhibit physical swelling after sealing, manifesting as an uneven surface on the sealing film. This is caused by the inability to completely expel air when liquid milk is poured into the high-capsule milk cup, resulting in gas being trapped inside. After sealing, the remaining gas expands and contracts with temperature fluctuations, eventually causing permanent film deformation. This physical swelling has several adverse consequences: 1. Deformed sealing film leads to excessive local tension, making it prone to rupture during transport vibrations or stacking; 2. Buyers may mistake physical swelling for product spoilage, leading to unnecessary quality disputes; 3. The uneven sealing film severely damages the packaging's aesthetics, reducing consumer willingness to purchase. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide an auxiliary venting device for filling tall cups of milk, which vents the filled tall cups to avoid physical swelling caused by gas being trapped inside.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An auxiliary venting device for filling tall cup milk includes a bracket for detachably connecting to a heat sealing frame and at least one set of cup body extrusion assemblies detachably mounted on the bracket. The cup body extrusion assembly includes a first extruder and a second extruder spaced apart horizontally and perpendicular to the tall cup conveying direction. The first extruder and the second extruder form a cup body conveying channel. The distance between the extrusion working position of the first extruder and the extrusion working position of the second extruder is less than the lateral dimension of the cup body.

[0007] As a limitation of this utility model: the first extruder and the second extruder have the same structure and are symmetrically arranged about the direction of high cup conveying. The first extruder includes a vertically detachable upright rod mounted on the support and a horizontal rod fixed to the top of the upright rod and extending along the direction of high cup conveying. The height of the upright rod is greater than or equal to the height of the high cup. The upright rod of the first extruder and the upright rod of the second extruder form a cup body conveying channel. The side of the horizontal rod facing the cup body conveying channel is the extrusion working position.

[0008] As a further limitation of this utility model: both the crossbar of the first extruder and the crossbar of the second extruder are provided with a gradually expanding guide portion at the upstream end of the high cup conveying direction, and the two gradually expanding guide portions are in a figure-eight structure; the distance between the two gradually expanding guide portions decreases along the high cup conveying direction.

[0009] As a further limitation of this utility model: the crossbar of the first extruder and the crossbar of the second extruder are also provided with a gradually expanding guide portion at the downstream end of the high cup conveying direction. The two gradually expanding guide portions are also in a figure-eight structure and the distance between the two gradually expanding guide portions increases along the high cup conveying direction.

[0010] As a further limitation of this utility model: the distance between the two crossbars in each cup body extrusion assembly is set to 7-8cm.

[0011] As a further limitation of this utility model: a first connecting plate is fixedly provided at the bottom end of the upright, and the first connecting plate and the bracket are detachably connected by a first fastener; a first adjusting hole is provided on the first connecting plate, extending horizontally and perpendicular to the high cup conveying direction, and the first fastener passes through the first adjusting hole and is fixed to the bracket.

[0012] As a further limitation of this utility model: the bracket and the heat sealing frame are detachably connected by a second connecting plate and a second fastener. The second connecting plate is fixedly connected to the heat sealing frame. The second connecting plate is provided with a second adjustment hole extending in the vertical direction. The second fastener passes through the second adjustment hole and is fixed to the bracket.

[0013] As another limitation of this utility model: the support and the cup body extrusion assembly are both made of 304 food-grade stainless steel.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0015] This invention includes a support frame and at least one set of cup body extrusion assemblies detachably mounted on the support frame. Each cup body extrusion assembly includes a first extruder and a second extruder spaced horizontally and perpendicular to the cup conveying direction. The first and second extruders form a cup body conveying channel. The distance between the extrusion working positions of the first and second extruders is less than the lateral dimension of the cup body. When the cup is transported through this invention with the film plate, it passes through the cup body conveying channel. Simultaneously, the extrusion working positions of the first and second extruders exert relative pressure on the cup body. The cup body deforms under pressure, forcing the milk level in the cup to rise to the rim, thus expelling the air from the original milk level to the rim. Heat sealing is then completed under the cup body extrusion state. After heat sealing, the cup continues to be transported forward, leaving the first and second extruders. At this point, the cup wall springs back, and a negative pressure adsorption effect is formed inside the cup, causing the sealing film to automatically concave downwards and adhere tightly to the liquid surface, resulting in a smoother sealing film surface.

[0016] In summary, this invention can completely remove air from the cup after filling and before heat sealing, resulting in a smoother sealing film surface after heat sealing and solving the problem of physical swelling. This invention is applicable to the liquid food filling industry. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the existing membrane plate and high cup structure;

[0019] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a partial structural diagram of one set of cup body extrusion components in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the application structure of an embodiment of the present utility model.

[0023] In the diagram: 1-Bracket, 101-Support rod, 2-Cup body extrusion assembly, 21-First extruder, 22-Second extruder, 23-Upright pole, 24-Horizontal bar, 25-Cup body conveying channel, 26-Extrusion working position, 3-First connecting plate, 4-Second connecting plate, 5-First fastener, 6-Second fastener, 7-First adjusting hole, 8-Second adjusting hole, 9-Gradually expanding guide, 10-Membrane plate, 11-High cup, 12-Heat sealing frame. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and do not constitute a limitation thereof.

[0025] The directional terms or positional relationships such as "left," "right," "front," and "back" used in the embodiments are based on the drawings in this utility model specification. Figure 2 The orientation relationships are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0026] In this embodiment, the tall cup is transported from front to back.

[0027] like Figures 2-5 As shown, this embodiment includes a support 1 and at least one set of cup body squeezing components 2 detachably disposed on the support 1. The cup body squeezing components 2 are used to squeeze the cup body of the tall cup after milk is filled, so as to expel the air in the area from the original milk level to the cup mouth in the tall cup.

[0028] The bracket 1 includes two support rods 101 that are parallel and spaced apart along the high cup conveying direction (i.e., front and back direction). In this embodiment, the bracket 1 is made of 304 food-grade stainless steel.

[0029] like Figure 1 As shown, the cup body extrusion assembly 2 includes a first extruder 21 and a second extruder 22 spaced apart horizontally and perpendicular to the high cup conveying direction (i.e., along the left and right directions), forming a cup body conveying channel 25 between them. Specifically, the first extruder 21 and the second extruder 22 have the same structure and are symmetrically arranged about the high cup conveying direction, i.e., the first extruder 21 and the second extruder 22 are symmetrically arranged left and right. The first extruder 21 includes a vertically detachable upright 23 mounted on the support 1 and a horizontal bar 24 fixed to the top of the upright 23 and extending along the high cup conveying direction. In this embodiment, there are two upright 23s in the first extruder 21, one fixed to each of the two support rods 101, and the horizontal bar 24 is fixed to the top of the two upright 23s and extends along the front and rear directions. The second extruder 22 also includes two upright 23s and a horizontal bar 24 fixed to the top of the two upright 23s. The uprights 23 of the first extruder 21 and the second extruder 22 form a cup body conveying channel 25. The height of the uprights 23 is greater than or equal to the height of the tall cup, ensuring that the tall cup can pass through the cup body conveying channel 25. In this embodiment, the cup body extrusion assembly 2 is made of 304 food-grade stainless steel.

[0030] like Figure 2-4As shown, the distance between the extrusion working position 26 of the first extruder 21 and the extrusion working position 26 of the second extruder 22 is less than the lateral dimension of the cup body, so as to achieve extrusion of the cup body. The extrusion working position 26 refers to the side of the crossbar 24 facing the cup body conveying channel 25. In other words, in the same cup body extrusion assembly 2, the opposite sides of the crossbar 24 of the first extruder 21 and the crossbar 24 of the second extruder 22 are their respective extrusion working positions 26. When the tall cup passes through the cup body conveying channel 25, the crossbar 24 of the first extruder 21 extrudes the cup body, causing the cup wall to be concave to the right, and the crossbar 24 of the second extruder 22 extrudes the cup body, causing the cup wall to be concave to the left, thus achieving relative extrusion of the cup body.

[0031] In this embodiment, the distance between the two crossbars 24 in each cup body extrusion assembly 2 is set to 7-8cm to accommodate most tall cup sizes on the market. In this embodiment, the distance between the two crossbars 24 is set to 7.4cm.

[0032] Furthermore, to improve the versatility of this device and meet the requirements for extruding cups of different heights, this embodiment detachably connects the support 1 and the heat-sealing frame 12. For example... Figure 3 , 5 As shown, the bracket 1 and the heat-sealing frame 12 are detachably connected via a second connecting plate 4 and a second fastener 6. The second connecting plate 4 is welded to the heat-sealing frame 12. The second connecting plate 4 is provided with a second adjustment hole 8 extending vertically. The second fastener 6 passes through the second adjustment hole 8 and is screwed into the support rod 101 to fix the second connecting plate 4 to the bracket 1. When the height of the cup is small, the bracket 1 is adjusted upward; when the height of the cup is large, the bracket 1 is adjusted downward.

[0033] To enable the extrusion of tall cups with different lateral dimensions, the cup body extrusion assembly 2 is detachably mounted on the bracket 1. Specifically, as shown... Figure 2 , 3 As shown, a first connecting plate 3 is fixedly mounted at the bottom of the upright 23. The first connecting plate 3 and the bracket 1 are detachably connected by a first fastener 5. The first connecting plate 3 is provided with a first adjusting hole 7 extending horizontally and perpendicular to the cup conveying direction (i.e., along the left and right directions). The first fastener 5 passes through the first adjusting hole 7 and is screwed into the support rod 101 to fix the first connecting plate 3 and the bracket 1. In use, when the cup body has a large lateral dimension, the first fastener 5 is loosened, and the upright 23 in the first extrusion member 21 or the upright 23 in the second extrusion member 22 is moved, so that the upright 23 in the first extrusion member 21 moves to the left or the upright 23 in the second extrusion member 22 moves to the right, thereby increasing the distance between the upright 23 in the first extrusion member 21 and the upright 23 in the second extrusion member 22. Conversely, adjusting the position of the upright 23 reduces the distance between the upright 23 in the first extrusion member 21 and the upright 23 in the second extrusion member 22 to accommodate a cup body with a smaller lateral dimension.

[0034] The first fastener 5 and the second fastener 6 here use existing screws, or any other structure in the existing technology that can achieve fastening and disassembly functions can be selected.

[0035] like Figure 2 As shown, in this embodiment, the cup body extrusion assembly 2 is provided with three sets, but it can also be adjusted to one set, two sets, or other quantities depending on the number of tall cups transported during actual filling. Each set of cup body extrusion assembly 2 includes a first extruder 21 and a second extruder 22 arranged at intervals along the left and right directions. Figure 2 The cup body conveying channels 25 in the three cup body extrusion assemblies 2 have different lateral dimensions to illustrate that tall cups with different lateral dimensions can pass through.

[0036] To improve this embodiment, such as Figure 2 , 3 As shown, in the same cup body extrusion assembly 2, both the crossbar 24 of the first extruder 21 and the crossbar 24 of the second extruder 22 are provided with a gradually expanding guide 9 at the upstream end in the cup conveying direction. Here, the upstream end refers to the front end of the crossbar 24. In this embodiment, the gradually expanding guide 9 is an arc-shaped bar, which is integrally set with the crossbar 24. The two gradually expanding guides 9 are arranged in a V-shape, and the distance between the two gradually expanding guides 9 decreases along the cup conveying direction, that is, it decreases from front to back. Because the two crossbars 24 need to extrude the cup body, and the distance between the two crossbars 24 is smaller than the lateral dimension of the cup body, when the cup is transported to the front end of the crossbar 24, the front end of the crossbar 24 is likely to break the paper cup body. By setting the gradually expanding guide 9, the cup passes through the gradually expanding guide 9 before entering the crossbar 24. Because the front end of the gradually expanding guide 9 is larger, it will not damage the cup body.

[0037] Similarly, both the crossbar 24 of the first extruder 21 and the crossbar 24 of the second extruder 22 are provided with a gradually expanding guide 9 at their downstream ends in the direction of conveying the tall cup. Here, the downstream end refers to the rear end of the crossbar 24. The gradually expanding guide 9 is also an arc-shaped bar integrally formed with the crossbar 24. The two gradually expanding guides 9 are also in a V-shape, and the distance between the two gradually expanding guides 9 increases along the direction of conveying the tall cup, that is, it increases from front to back. The gradually expanding guide 9 here is to prevent the rear end of the crossbar 24 from tearing the paper cup body when the tall cup leaves the device.

[0038] During actual filling, milk is not filled to the rim of the cup, but rather a short distance below it. This prevents overfilling, which would make transportation and drinking inconvenient. Air will remain in this area between the milk level and the rim. If the cup is sealed directly, this air will be trapped inside and expand and contract due to ambient temperature, causing unevenness on the sealing film surface and resulting in physical bulging.

[0039] like Figure 5As shown, in this embodiment, the membrane plate 10 is installed below the hot air area and connected to the heat sealing frame 12 during use. Figure 5 The image only shows a portion of the diaphragm plate 10 corresponding to this device for illustrative purposes. A chain is provided between the diaphragm plate 10 and the heat-sealing frame 12 to facilitate the transport of the diaphragm plate 10. Since the transport method of the diaphragm plate 10 is existing technology, therefore... Figure 5 The chain is not shown. The tall cup is transported into the cup body conveying channel 25 of this device along with the membrane plate 10. At this time, the two crossbars 24 in the same set of cup body extrusion components 2 will extrude the cup body. The cup body is deformed by the extrusion, which forces the milk level in the tall cup to rise to the cup mouth, so as to expel the air in the area from the original milk level to the cup mouth. Then, heat sealing is completed under the cup body extrusion state. After heat sealing, the tall cup continues to be transported forward and leaves this device. At this time, the extruded cup wall rebounds and recovers, and a negative pressure adsorption is formed inside the tall cup, which causes the sealing film to automatically sink downward and adhere tightly to the liquid surface, making the sealing film surface smoother.

[0040] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary exhaust device for filling tall cup milk, characterized in that, It includes a bracket for detachable connection with a heat sealing frame and at least one set of cup body extrusion assemblies detachably disposed on the bracket. The cup body extrusion assembly includes a first extruder and a second extruder spaced apart along a horizontal direction and perpendicular to the cup conveying direction. The first extruder and the second extruder form a cup body conveying channel. The distance between the extrusion working position of the first extruder and the extrusion working position of the second extruder is less than the lateral dimension of the cup body.

2. The auxiliary exhaust device for high-cup milk filling according to claim 1, characterized in that, The first extruder and the second extruder have the same structure and are symmetrically arranged about the direction of the high cup conveying. The first extruder includes a vertically detachable upright rod mounted on the support and a horizontal rod fixed to the top of the upright rod and extending along the direction of the high cup conveying. The height of the upright rod is greater than or equal to the height of the high cup. The upright rod of the first extruder and the upright rod of the second extruder form a cup body conveying channel. The side of the horizontal rod facing the cup body conveying channel is the extrusion working position.

3. The auxiliary exhaust device for high-cup milk filling according to claim 2, characterized in that, Both the crossbar of the first extruder and the crossbar of the second extruder are provided with a gradually expanding guide at the upstream end of the high cup conveying direction. The two gradually expanding guides are arranged in a figure-eight structure. The distance between the two gradually expanding guides decreases along the high cup conveying direction.

4. The auxiliary exhaust device for high-cup milk filling according to claim 3, characterized in that, Both the crossbar of the first extruder and the crossbar of the second extruder are provided with a gradually expanding guide section at the downstream end of the high cup conveying direction. The two gradually expanding guide sections are also in a figure-eight structure and the distance between the two gradually expanding guide sections increases along the high cup conveying direction.

5. The auxiliary exhaust device for high-cup milk filling according to claim 4, characterized in that, The distance between the two crossbars in each cup body extrusion assembly is set to 7-8cm.

6. The auxiliary exhaust device for high-cup milk filling according to any one of claims 2-5, characterized in that, A first connecting plate is fixed at the bottom of the upright, and the first connecting plate is detachably connected to the bracket by a first fastener; the first connecting plate is provided with a first adjustment hole extending horizontally and perpendicular to the high cup conveying direction, and the first fastener passes through the first adjustment hole and is fixed to the bracket.

7. The auxiliary exhaust device for high-cup milk filling according to claim 6, characterized in that, The bracket and the heat sealing frame are detachably connected by a second connecting plate and a second fastener. The second connecting plate is fixedly connected to the heat sealing frame. The second connecting plate is provided with a second adjustment hole extending in the vertical direction. The second fastener passes through the second adjustment hole and is fixed to the bracket.

8. The auxiliary exhaust device for high-cup milk filling according to any one of claims 1-5 and 7, characterized in that, The support and cup body extrusion assembly are both made of 304 food-grade stainless steel.

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