Adjustable volume filling device

Abstract

This invention belongs to the field of material filling technology and discloses a volume-adjustable filling device for filling materials into the filling cavity of a filling tube. The volume-adjustable filling device includes a metering mold and an adjusting mold. The metering mold includes a first main body and a protrusion connected to each other. The first main body has a through cavity that extends through both the first main body and the protrusion. The adjusting mold includes a second main body and an insertion part connected to each other. The second main body is adjustablely positioned on the first main body, and the insertion part can be inserted into the through cavity to form a receiving cavity. When the position of the second main body relative to the first main body is adjusted, the insertion part can move within the through cavity to adjust the volume of the receiving cavity. In use, the material is first metered in the receiving cavity, and then the protrusion of the metering mold is inserted into the filling cavity of the filling tube to fill the metered material into the filling cavity. The volume of the receiving cavity is adjustable, making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of material filling technology, and more particularly to a filling device with adjustable volume. Background Technology

[0002] In experiments with cavity-fed filter rods, the traditional method involves using a fixed-volume mold to measure the amount of granules before filling the paper tube or filter rod. However, in actual granule filling, the filling amount needs to be adjusted according to actual requirements. Traditional fixed-volume molds provide a fixed filling amount and cannot be adjusted as needed. Custom-made molds of different volumes are necessary, but this process is time-consuming and costly, and the volume of custom-made molds cannot precisely control the filling amount. Summary of the Invention

[0003] The purpose of this invention is to provide a volume-adjustable filling device that can precisely adjust the filling amount according to needs.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An adjustable-volume filling device for filling material into the filling cavity of a filling tube, the adjustable-volume filling device comprising:

[0006] A quantitative mold, comprising a first main body and a protrusion connected to each other, wherein the quantitative mold is provided with a through cavity penetrating the first main body and the protrusion, and the protrusion is capable of extending into the filling cavity;

[0007] An adjusting mold includes a second main body and an insertion part connected to each other. The second main body is arbitrarily positioned on the first main body. The insertion part can be inserted into the through cavity to form a receiving cavity. When the position of the second main body relative to the first main body moves, the second main body can drive the insertion part to move simultaneously to adjust the volume of the receiving cavity.

[0008] As an alternative, the second main body is threaded onto the first main body, and the quantitative mold and the adjusting mold are positioned by a positioning component.

[0009] As an alternative, the first main body has a stepped hole on the end face away from the protrusion. The stepped hole includes a first hole and a second hole that are interconnected. The second main body includes a first post and a second post that are interconnected. The first post is threadedly connected to the first hole. The second post is disposed in the second hole. The positioning member is an elastic member. The elastic member is disposed in the second hole and its two ends abut against the bottom surface of the second hole and the end face of the second post facing the first main body, respectively.

[0010] As an alternative, the elastic element is a compression spring, which is sleeved on the first post, and the two ends of the compression spring abut against the bottom surface of the second hole and the end face of the second post facing the first main body, respectively.

[0011] As an alternative, the second post is slidably fitted with the second hole.

[0012] As an alternative, the outer surface of the second column is provided with graduations.

[0013] As an alternative, the end face of the second column opposite to the first main body has an adjustment hole for connecting a wrench.

[0014] As an alternative, the pitch of the threaded connection between the second main body and the first main body is 0.8-1.5 mm.

[0015] As an alternative, the outer surface of the first main body is provided with two recesses, which are symmetrically arranged about the axis of the first main body.

[0016] As an alternative, the recess is arc-shaped.

[0017] The beneficial effects of this invention are:

[0018] This invention provides a volume-adjustable filling device for filling materials into the filling cavity of a filling tube. The device includes a metering mold and an adjusting mold. The metering mold comprises a first main body and a protrusion connected to each other. The first main body has a through cavity extending through both the first main body and the protrusion. The adjusting mold comprises a second main body and an insertion part connected to each other. The second main body is adjustablely positioned on the first main body, and the insertion part can be inserted into the through cavity to form a receiving cavity. When the position of the second main body relative to the first main body is adjusted, the insertion part can move within the through cavity to adjust the volume of the receiving cavity. In use, the material is first metered in the receiving cavity, and then the protrusion of the metering mold is inserted into the filling cavity of the filling tube to fill the cavity with the metered material. The volume of the receiving cavity is adjustable, allowing for different dosages of material to be set as needed. The volume of the receiving cavity can be precisely and continuously controlled, making it convenient to use. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the volume-adjustable filling device provided in an embodiment of the present invention;

[0020] Figure 2 This is an isometric view of the volume-adjustable filling device provided in an embodiment of the present invention.

[0021] In the picture:

[0022] 100. Filling tube; 101. Filling cavity;

[0023] 1. Quantitative mold; 11. First main body; 112. Recessed part; 12. Protruding part; 13. Receiving cavity;

[0024] 2. Adjusting the mold; 21. Insertion part; 22. First pillar; 23. Second pillar; 231. Scale; 232. Adjustment hole;

[0025] 3. Compression spring. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] This invention provides a volume-adjustable filling device for precisely filling materials into the filling cavity 101 of a filling tube 100. The filling tube 100 can be a paper tube or a filter rod, both of which have a filling cavity 101. The material can be granular. After adjusting the volume of the accommodating cavity 13 of the volume-adjustable filling device according to the volume of the filling cavity 101 of the paper tube or filter rod, the material is placed into the accommodating cavity 13, and then the metered material is placed into the filling cavity 101 of the filling tube 100, such as the paper tube or filter rod.

[0031] like Figures 1-2 As shown, the volume-adjustable filling device includes a metering mold 1 and an adjusting mold 2. The metering mold 1 is cylindrical and includes a first main body 11 and a protrusion 12 connected to each other. The metering mold 1 is provided with a through cavity that passes through the first main body 11 and the protrusion 12. The adjusting mold 2 includes a second main body and an insertion part 21 connected to each other. The second main body is adjustablely positioned on the first main body 11. The insertion part 21 can be inserted into the through cavity to form a receiving cavity 13. Material can be filled into the receiving cavity 13. When the position of the second main body relative to the first main body 11 moves, the second main body can drive the insertion part 21 to move simultaneously to adjust the volume of the receiving cavity 13. When filling the filling tube 100 with material using the volume-adjustable filling device, the position of the second main body relative to the first main body 11 is first adjusted according to actual needs to adjust the volume of the accommodating cavity 13. Then, the material is filled into the adjusted accommodating cavity 13. Next, the filling tube 100 is fitted onto the protrusion 12, with the end face of the filling tube 100 abutting against the end face of the first main body 11, so that the protrusion 12 extends into the filling cavity 101. Finally, the volume-adjustable filling device is inverted so that the accommodating cavity 13 is vertically downward, and the material is filled into the filling cavity 101 of the filling tube 100 under the action of gravity.

[0032] When using this volume-adjustable filling device, the material is first quantified in the accommodating cavity 13, and then the protrusion 12 of the quantification mold 1 is inserted into the filling cavity 101 of the filling tube 100 to fill the quantified material into the filling cavity 101. The volume of the accommodating cavity 13 is adjustable, and different dosages of material can be set according to requirements. The volume of the accommodating cavity 13 can be precisely and continuously controlled, making it convenient to use.

[0033] Optionally, both the quantitative mold 1 and the adjusting mold 2 are made of food-grade material, which can be stainless steel or wear-resistant plastic.

[0034] Optionally, the second main body is threadedly connected to the first main body 11. The first main body 11 is provided with an internal thread, and the second main body is provided with an external thread. The second main body is threadedly connected to the first main body 11 by the cooperation of the external thread and the internal thread. Rotating the second main body can move the second main body relative to the first main body 11 along its axial direction to adjust the volume of the accommodating cavity 13. The positioning member can position the adjusted first main body 11 and the second main body to prevent the first main body 11 and the second main body from moving after the position adjustment and affecting the volume of the accommodating cavity 13.

[0035] Preferably, the thread pitch should be as small as possible, preferably 0.8mm-1.5mm, which is beneficial to improving the accuracy of the adjustment cavity 13.

[0036] Furthermore, the first main body 11 has a stepped hole on the end face away from the protrusion 12. The stepped hole includes a first hole and a second hole that are interconnected. The first hole is connected between the through cavity and the second hole. The inner diameter of the through cavity is smaller than the inner diameter of the first hole and the inner diameter of the second hole. The second main body includes a first post 22 and a second post 23 that are interconnected. The first hole is provided with an internal thread, and the first post 22 is provided with an external thread that mates with the internal thread. The first post 22 and the first hole are threadedly connected by the internal thread and the external thread. The second post 23 is disposed in the second hole. The positioning element is an elastic element. The elastic element is disposed in the second hole and its two ends abut against the bottom surface of the second hole and the end face of the second post 23 facing the first main body 11, respectively. In this structure, the elastic element can always exert an elastic force between the quantitative mold 1 and the adjusting mold 2, so that the adjusting mold 2 is always in a tensioned state relative to the quantitative mold 1, so that the adjusted quantitative mold 1 and the adjusting mold 2 are fixed in relative position.

[0037] In this embodiment, the through cavity is a through hole, and the insertion part 21 is a cylinder.

[0038] In other embodiments, the positioning element may also be a set screw, which is threadedly connected to the adjusting mold 2 and abuts against the metering mold 1, so that the adjusting mold 2 is positioned relative to the metering mold 1.

[0039] In order to enable the outer surface of the second column 23 and the inner surface of the second hole to slide and fit together when the adjusting mold 2 moves relative to the metering mold 1 along its axial direction, so that the adjusting mold 2 can move accurately and stably relative to the metering mold 1 along its axial direction.

[0040] Optionally, the elastic element is a compression spring 3, which is sleeved on the first post 22 and located in the second hole. The two ends of the compression spring 3 abut against the bottom surface of the second hole and the end face of the second post 23 facing the first main body 11, respectively. This structure is simple in design and easy to install and use.

[0041] To further improve the adjustment accuracy, the outer surface of the second column 23 is provided with a scale 231, which is marked with numbers to facilitate accurate reading by the operator. This structure accurately indicates the scale 231 by the end face of the first main body 11 facing away from the protrusion 12.

[0042] To facilitate the rotation of the mold 2, the second column 23 of the mold 2 is provided with an adjustment hole 232 on the end face opposite to the first main body 11. The cross-section of the adjustment hole 232 matches the cross-section of a certain type of internal hex wrench. When it is necessary to rotate the mold 2, the internal hex wrench is inserted into the adjustment hole 232 to rotate the mold 2, so that the rotation of the mold 2 is more convenient and less strenuous.

[0043] To facilitate the operator's grip on the adjustable filling device, two recesses 112 are provided on the outer surface of the first main body 11. The two recesses 112 are symmetrically arranged with the axis of the first main body 11 as the center. This structure not only makes it convenient for the operator to hold and use, but also effectively reduces the overall weight, making the operation more convenient and labor-saving.

[0044] Furthermore, the recessed part 112 is arc-shaped and features a large rounded corner design, which makes it easy to hold and also makes it more aesthetically pleasing.

[0045] In addition, the quantitative mold 1 and the adjusting mold 2 are designed with rounded corners in all areas that operators may come into contact with, in order to protect the operators.

[0046] This volume-adjustable filling device can quickly adjust the filling amount according to the required amount during the material filling process without the need to process molds of different volumes multiple times; it is also lightweight, easy to use and operate, and the filling amount can be continuously controlled with high precision; the volume of the accommodating cavity 13 can be marked during adjustment to improve the accuracy of adjustment.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A volume-adjustable filling device for filling material into the filling cavity (101) of a filling tube (100), characterized in that, The volume-adjustable filling device includes: A quantitative mold (1) includes a first main body (11) and a protrusion (12) connected to each other. The quantitative mold (1) is provided with a through cavity that passes through the first main body (11) and the protrusion (12). The protrusion (12) can extend into the filling cavity (101). Adjustment mold (2), the adjustment mold (2) includes a second main body and an insertion part (21) connected to each other. The second main body is adjustablely disposed on the first main body (11). The insertion part (21) can be inserted into the through cavity to form a receiving cavity (13). When the position of the second main body relative to the first main body (11) moves, the second main body can drive the insertion part (21) to move simultaneously to adjust the volume of the receiving cavity (13). The second main body is threadedly connected to the first main body (11), and the quantitative mold (1) and the adjusting mold (2) after position adjustment are positioned by the positioning component; The first main body (11) has a stepped hole on the end face away from the protrusion (12). The stepped hole includes a first hole and a second hole that are interconnected. The second main body includes a first post (22) and a second post (23) that are interconnected. The first post (22) is threadedly connected to the first hole. The second post (23) is disposed in the second hole. The positioning member is an elastic member. The elastic member is disposed in the second hole and its two ends abut against the bottom surface of the second hole and the end face of the second post (23) facing the first main body (11), respectively. The outer surface of the second column (23) is provided with a scale (231).

2. The volume-adjustable filling device according to claim 1, characterized in that, The elastic element is a compression spring (3), which is sleeved on the first post (22), and the two ends of the compression spring (3) respectively abut against the bottom surface of the second hole and the end face of the second post (23) facing the first main body (11).

3. The volume-adjustable filling device according to claim 1, characterized in that, The second column (23) slides into contact with the second hole.

4. The volume-adjustable filling device according to claim 1, characterized in that, The second column (23) has an adjustment hole (232) for connecting a wrench on the end face opposite to the first main body (11).

5. The volume-adjustable filling device according to claim 1, characterized in that, The pitch of the threaded connection between the second main body and the first main body (11) is 0.8-1.5 mm.

6. The volume-adjustable filling device according to claim 1, characterized in that, The outer surface of the first main body (11) is provided with two recesses (112), and the two recesses (112) are symmetrically arranged with the axis of the first main body (11) as the center.

7. The volume-adjustable filling device according to claim 6, characterized in that, The recess (112) is arc-shaped.

Images