Filling device for food preservative production

Abstract

The utility model relates to the technical field of filling devices, and discloses a filling device for food preservative production, which comprises a flat plate, a circular plate, a first cylinder, a second cylinder, a spring, a first vertical plate, a feeding hopper and a driving part. During use, the driving assembly is controlled to work, and then the circular plate can be driven to do linear motion and rotary motion. When the circular plate rotates, the multiple first cylinders can be driven to rotate, and then the multiple second cylinders are driven to rotate. When the multiple first cylinders and the multiple second cylinders move to the positions below the discharging ends correspondingly, the preservative can fall into the corresponding first cylinders and the corresponding second cylinders. When the multiple first cylinders and the multiple second cylinders move to the positions above the through holes correspondingly, materials in the corresponding first cylinders and the corresponding second cylinders can fall out of the through holes for filling. Therefore, continuous filling can be carried out only by driving the circular plate to rotate, and the device has the advantage of being convenient to control.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of filling devices, for example to a filling device for food preservative production. BACKGROUND

[0002] A quantitative filling device for preservative production is disclosed in the related technology (publication number: CN219546687U), which comprises a fixed frame and a quantitative cylinder. The fixed frame is fixedly connected with a filling cylinder at the top, and the filling cylinder and the quantitative cylinder are fixedly connected with electric valves at the bottom. A pair of partitions are slidably connected inside the quantitative cylinder, and the partitions are fixedly connected with moving rods on the sides away from each other and penetrate the quantitative cylinder. A pair of racks are slidably connected to the outer wall of the quantitative cylinder, and the outer wall of the quantitative cylinder is rotatably connected with a gear that meshes with the racks. The racks are fixedly connected with the moving rods on both sides through limiting rods. The top of the quantitative cylinder is fixedly connected with a support plate, and the bottom of the support plate is fixedly connected with an adjusting motor. The output end of the adjusting motor is fixedly connected to the side wall of the gear.

[0003] In the process of implementing the above-mentioned embodiments, it is found that at least the following problems exist in the related technology:

[0004] The quantitative filling device for preservative production controls the work of the adjusting motor, which drives the gear to rotate. Through the meshing action between the teeth, the two racks can move towards each other or in the opposite direction. Finally, the two partitions move towards each other or in the opposite direction, thereby changing the size of the internal space of the quantitative cylinder, so as to be able to quantitatively fill the preservative. However, during the filling process, the two electric valves need to be controlled to open or close respectively, so the operation is relatively troublesome.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0006] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or to delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0007] The filling device for food preservative production provided by the embodiments of the present disclosure facilitates operation.

[0008] In some embodiments, the filling device for food preservative production comprises: a flat plate, the flat plate comprising a through hole; a circular plate, the circular plate being located above the flat plate, and the plane of the circular plate being parallel to the plane of the flat plate; a plurality of first cylinders, the plurality of first cylinders being arranged around the center of the circular plate; a plurality of second cylinders, each of the plurality of second cylinders being slidably sleeved on the outer wall of each of the plurality of first cylinders, each of the plurality of second cylinders comprising a shoulder located on the outer side surface thereof, and the plurality of second cylinders being attached to the top surface of the flat plate; a plurality of springs, each of the plurality of springs being sleeved on each of the plurality of second cylinders and being located between the circular plate and each of the plurality of shoulders; a first vertical plate, the first vertical plate being connected to the top surface of the flat plate and being located on the side of the circular plate; a feeding hopper, the feeding hopper being slidably mounted on the first vertical plate, the sliding direction of the feeding hopper relative to the first vertical plate being the same as the sliding direction of the plurality of first cylinders relative to the plurality of second cylinders, and the discharge end of the feeding hopper being attached to the top surface of the circular plate; a driving member, the driving member being mounted between the flat plate and the circular plate and being configured to drive the circular plate to perform linear motion and rotational motion; wherein, under the driving of the driving member, the plurality of first cylinders slide relative to the plurality of second cylinders, and the plurality of first cylinders and the plurality of second cylinders are respectively movable below the discharge end and above the through hole.

[0009] Optionally, the driving member comprises: a speed reducer, the output end of the speed reducer being arranged on the same center line as the circular plate; a shaft coupling, the shaft coupling being mounted on the output end of the speed reducer; a rotating shaft, the rotating shaft being mounted on the shaft coupling and being connected to the top center of the circular plate; wherein, the input end of the speed reducer is controllably rotatable to enable the circular plate to perform rotational motion.

[0010] Optionally, the driving member further comprises: a motor, the center line of the rotating end of the motor being parallel to the center line of the input end of the speed reducer; a driving pulley, the driving pulley being mounted on the rotating end of the motor; a driven pulley, the driven pulley being mounted on the input end of the speed reducer; a belt, the belt being sleeved on the driving pulley and the driven pulley.

[0011] Optionally, the driving member further comprises: a linear slide, the moving end of the linear slide being movable in the same direction as the sliding direction of the plurality of first cylinders relative to the plurality of second cylinders; a bending plate, the bending plate being mounted on the moving end of the linear slide; wherein, the speed reducer and the motor are both mounted on the bending plate.

[0012] Optionally, the driving member further comprises: a second vertical plate, the second vertical plate being connected to the top surface of the flat plate and being located on the side of the circular plate; wherein, the linear slide is mounted on the second vertical plate.

[0013] Optionally, the filling device further comprises: a third cylinder, the third cylinder being mounted on the top surface of the circular plate and being arranged on the same center line as the circular plate; wherein, the discharge end of the feeding hopper is located inside the third cylinder.

[0014] Optionally, further comprising: a guide rail, mounted to the first vertical plate; a sliding block, slidably mounted to the guide rail, a sliding direction of the sliding block relative to the guide rail being same as a sliding direction of the plurality of first cylinders relative to the plurality of second cylinders; a support, mounted to the sliding block; wherein the feeding hopper is mounted to the support.

[0015] Optionally, further comprising: a discharging hopper, connected to a bottom surface of the flat plate and surrounding the through hole.

[0016] Optionally, further comprising: support legs, respectively mounted to four corners of the bottom surface of the flat plate.

[0017] The food preservative production filling device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The food preservative production filling device provided by the embodiments of the present disclosure includes a flat plate, a circular plate, a first cylinder, a second cylinder, a spring, a first vertical plate, a feeding hopper and a driving member. The flat plate includes a through hole for passing the preservative. The circular plate is located above the flat plate, and the plane of the circular plate is parallel to the plane of the flat plate. The first cylinder is arranged through the circular plate and is uniformly distributed around the center of the circular plate. The top surface of each first cylinder is coincident with the top surface of the circular plate. The second cylinder is slidably sleeved on the outer wall of the first cylinder, and the second cylinder and the first cylinder can slide relative to each other. Each second cylinder includes a shoulder on the outer side surface, and each shoulder is used for limiting. The second cylinder is attached to the top surface of the flat plate to prevent the preservative from leaking from the gap between the second cylinder and the flat plate. The spring is sleeved on the second cylinder and is located between the circular plate and the shoulder, and is used for providing pressure to tightly attach the second cylinder to the top surface of the flat plate. The first vertical plate is connected to the top surface of the flat plate and is located on the side of the circular plate, and is used for supporting and installing the sliding feeding port. The feeding hopper is slidably mounted to the first vertical plate and can slide relative to the first vertical plate. The discharge end of the feeding hopper is attached to the top surface of the circular plate to prevent the preservative from leaking from the gap between the discharge end of the feeding hopper and the circular plate. The sliding direction of the feeding hopper relative to the first vertical plate is the same as the sliding direction of the first cylinder relative to the second cylinder, so that the feeding hopper can move with the moving end of the circular plate. The driving member is mounted between the flat plate and the circular plate and is used for providing driving force to drive the circular plate to move linearly and rotate. Under the driving of the driving member, the first cylinder slides relative to the second cylinder, and the first cylinder and the second cylinder can move below the discharge end and above the through hole, respectively.

[0019] When in use, the driving assembly is controlled to work, so as to drive the circular plate to move linearly and rotate. When the circular plate rotates, the plurality of first cylinders are driven to rotate, and then the plurality of second cylinders are driven to rotate. When the plurality of first cylinders and the plurality of second cylinders move to below the discharging end respectively, the preservative can fall into the interiors of the corresponding first cylinders and second cylinders. When the plurality of first cylinders and the plurality of second cylinders move to above the through hole respectively, the materials in the interiors of the corresponding first cylinders and second cylinders can fall out of the through hole to be filled. Therefore, only the circular plate needs to be driven to rotate, and the filling can be continuously performed, and the device has the advantage that the operation is convenient. When the circular plate moves linearly, the plurality of first cylinders can slide relative to the plurality of second cylinders. Therefore, the sizes of the capacities of the interiors of the plurality of first cylinders and the plurality of second cylinders are changed, and then the filling amount of the preservative is adjusted. Moreover, under the elastic force of the plurality of springs, the plurality of second cylinders can be tightly attached to the top surface of the flat plate, so that the side leakage between the plurality of second cylinders and the flat plate is avoided. Meanwhile, under the action of gravity or the pushing of the circular plate, the upper hopper can slide relative to the first vertical plate, so that the discharging end of the upper hopper is always attached to the top surface of the circular plate, and the side leakage between the discharging end of the upper hopper and the circular plate is avoided.

[0020] The foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the application as defined by the claims. The same numbers in different figures identify the same components or features. Dimensions of components and features could be exaggerated in the figures for visual purposes. The figures are not necessarily drawn to scale, and the dimensions of features could have been exaggerated or minimized for the sake of clarity.

[0022] Figure 1 is a cross-sectional structure schematic view of a filling device for food preservative production provided by an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 is an enlarged structure schematic view of A in FIG. 1;

[0024] Figure 3 is Figure 1 is a structure schematic view of B-B in FIG. 1;

[0025] Figure 4 is a front view structure schematic view of a filling device for food preservative production provided by an embodiment of the present disclosure.

[0026] LIST OF REFERENCE NUMERALS

[0027] 1: flat plate; 2: round plate; 3: first cylinder; 4: second cylinder; 5: spring; 6: first vertical plate; 7: upper hopper; 8: speed reducer; 9: shaft coupling; 10: rotating shaft; 11: motor; 12: driving pulley; 13: driven pulley; 14: belt; 15: linear slide; 16: bending plate; 17: second vertical plate; 18: third cylinder; 19: guide rail; 20: sliding block; 21: support; 22: lower hopper; 23: supporting leg. DETAILED DESCRIPTION

[0028] In order to enable persons skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0029] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0031] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0032] The term "plurality" means two or more, unless otherwise specified.

[0033] In the embodiments of the present disclosure, the character " / " represents that the preceding and following objects are in an "or" relationship. For example, A / B means A or B.

[0034] The term "and / or" is a description of the association relationship of objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0035] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] In combination with Figures 1 to 4 As shown in the drawings, the food preservative production filling device provided by the present disclosure comprises a flat plate 1, a circular plate 2, a first cylinder 3, a second cylinder 4, a spring 5, a first vertical plate 6, a feeding hopper 7 and a driving member. The flat plate 1 comprises a through hole for passing the preservative. The circular plate 2 is located above the flat plate 1, and the plane where the circular plate 2 is located is parallel to the plane where the flat plate 1 is located. The first cylinder 3 is arranged through the circular plate 2 and is uniformly distributed around the center of the circular plate 2. The top surface of each first cylinder 3 is coincident with the top surface of the circular plate 2. The second cylinder 4 is slidably sleeved on the outer wall of the plurality of first cylinders 3, and the plurality of second cylinders 4 and the plurality of first cylinders 3 can slide relative to each other. Each second cylinder 4 comprises a shaft shoulder located on the outer side surface thereof, and each shaft shoulder is used for limiting. The plurality of second cylinders 4 are in close contact with the top surface of the flat plate 1 to prevent the preservative from leaking from the gap between the second cylinder 4 and the flat plate 1. The spring 5 is sleeved on the plurality of second cylinders 4 and is located between the circular plate 2 and the plurality of shaft shoulders, and is used for providing pressure to make the plurality of second cylinders 4 tightly contact with the top surface of the flat plate 1. The first vertical plate 6 is connected to the top surface of the flat plate 1 and is located on the side of the circular plate 2, and is used for supporting and installing the slidable feeding opening. The feeding hopper 7 is slidably installed on the first vertical plate 6 and can slide relative to the first vertical plate 6. The discharge end of the feeding hopper 7 is in close contact with the top surface of the circular plate 2 to prevent the preservative from leaking from the gap between the discharge end of the feeding hopper 7 and the circular plate 2. The sliding direction of the feeding hopper 7 relative to the first vertical plate 6 is the same as the sliding direction of the plurality of first cylinders 3 relative to the plurality of second cylinders 4, so that the feeding hopper 7 can move with the moving end of the circular plate 2. The driving member is installed between the flat plate 1 and the circular plate 2, and is used for providing driving force to drive the circular plate 2 to move linearly and rotate. Under the driving of the driving member, the plurality of first cylinders 3 slide relative to the plurality of second cylinders 4, and the plurality of first cylinders 3 and the plurality of second cylinders 4 can move below the discharge end and above the through hole, respectively.

[0037] The food preservative production filling device provided by the embodiment of the present disclosure can drive the circular plate 2 to perform linear motion and rotary motion by controlling the driving assembly. When the circular plate 2 performs rotary motion, the plurality of first cylinders 3 can be driven to rotate, and the plurality of second cylinders 4 can be driven to rotate. When the plurality of first cylinders 3 and the plurality of second cylinders 4 move to below the discharge end respectively, the preservative can fall into the interiors of the corresponding first cylinders 3 and second cylinders 4. When the plurality of first cylinders 3 and the plurality of second cylinders 4 move to above the through hole respectively, the materials in the interiors of the corresponding first cylinders 3 and second cylinders 4 can fall out of the through hole to be filled. Therefore, the filling can be continuously performed by only driving the circular plate 2 to rotate, and the device has the advantage of being convenient to control. When the circular plate 2 performs linear motion, the plurality of first cylinders 3 can be driven to slide relative to the plurality of second cylinders 4. Thus, the sizes of the interior capacities of the plurality of first cylinders 3 and the plurality of second cylinders 4 can be changed, and the filling amount of the preservative can be adjusted. Moreover, under the elastic force of the plurality of springs 5, the plurality of second cylinders 4 can be tightly attached to the top surface of the flat plate 1, so that side leakage between the plurality of second cylinders 4 and the flat plate 1 is avoided. Meanwhile, under the action of gravity or the pushing of the circular plate 2, the upper hopper 7 can slide relative to the first vertical plate 6, so that the discharge end of the upper hopper 7 is always attached to the top surface of the circular plate 2, and side leakage between the discharge end of the upper hopper 7 and the circular plate 2 is avoided.

[0038] Optionally, as shown in Figure 1 and Figure 4 , the driving member includes a speed reducer 8, a shaft coupling 9 and a rotating shaft 10. The output end of the speed reducer 8 is distributed on the same center line as the circular plate 2, and is used to reduce the rotating speed. One end of the shaft coupling 9 is connected to the output end of the speed reducer 8, and the other end is connected to the rotating shaft 10, so that the rotating shaft 10 rotates synchronously with the output end of the speed reducer 8. The rotating shaft 10 is connected to the top center of the circular plate 2, and is used to drive the circular plate 2 to rotate. The input end of the speed reducer 8 can be controlled to rotate, so that the circular plate 2 performs rotary motion.

[0039] In the embodiment of the present disclosure, after the input end of the speed reducer 8 is controlled to rotate, the output end of the speed reducer 8 can drive the shaft coupling 9 to rotate. Then, the rotating shaft 10 is driven to rotate, and finally the circular plate 2 performs rotary motion.

[0040] Optionally, as shown in Figure 1 , Figure 3 and Figure 4As shown in the figure, the driving member further comprises a motor 11, a driving pulley 12, a driven pulley 13 and a belt 14. The center line of the rotating end of the motor 11 is parallel to the center line of the input end of the speed reducer 8, and is used to provide driving force to realize the rotating motion function. The driving pulley 12 is installed on the rotating end of the motor 11 and rotates under the driving of the motor 11. The driven pulley 13 is installed on the input end of the speed reducer 8 and is used to drive the input end of the speed reducer 8 to rotate. The belt 14 is sleeved on the driving pulley 12 and the driven pulley 13 and is used to transmit driving force.

[0041] In the embodiment of the present disclosure, the motor 11 is controlled to work, so as to drive the driving pulley 12 to rotate. Through the belt 14, the driven pulley 13 is driven to rotate. Then through the speed reducer 8 and the shaft coupling 9, the rotating shaft 10 is driven to rotate, and finally the automatic rotating function of the circular plate 2 is realized.

[0042] Optionally, as shown in Figure 1 and Figure 4 As shown in the figure, the driving member further comprises a linear slide 15 and a bending plate 16. The moving end of the linear slide 15 has the same movement direction as the sliding direction of the plurality of first cylinders 3 relative to the plurality of second cylinders 4, and is used to provide driving force to realize the linear movement function. The bending plate 16 is installed on the moving end of the linear slide 15 and moves under the driving of the linear slide 15. The speed reducer 8 and the motor 11 are both installed on the bending plate 16.

[0043] In the embodiment of the present disclosure, the linear slide 15 is controlled to work, so as to drive the bending plate 16 to move. Then the speed reducer 8 and the motor 11 are driven to move, and finally the automatic linear movement function of the circular plate 2 is realized.

[0044] Optionally, as shown in Figure 1 and Figure 4 As shown in the figure, the driving member further comprises a second vertical plate 17. The second vertical plate 17 is connected to the top surface of the flat plate 1 and is located at the side of the circular plate 2. The linear slide 15 is installed on the second vertical plate 17.

[0045] In the embodiment of the present disclosure, the driving member further comprises a second vertical plate 17 connected to the top surface of the flat plate 1 and located at the side of the circular plate 2. The second vertical plate 17 is used to support the installation of the linear slide 15 to determine the position of the linear slide 15.

[0046] Optionally, as shown in Figure 1 and Figure 4 As shown in the figure, a third cylinder 18 is further included. The third cylinder 18 is installed on the top surface of the circular plate 2 and is distributed on the same center line as the circular plate 2. The discharging end of the feeding hopper 7 is located in the interior of the third cylinder 18.

[0047] In the embodiments of the present disclosure, a third cylinder 18 is installed on the top surface of the circular plate 2 and is concentrically distributed with the circular plate 2. The discharge end of the upper hopper 7 is located inside the third cylinder 18, so that even if the preservative leaks from between the discharge end of the upper hopper 7 and the circular plate 2, the third cylinder 18 can block the preservative from directly falling to the ground.

[0048] Optionally, as shown in Figure 1 and Figure 4 , a guide rail 19, a sliding block 20, and a support 21 are further included. The guide rail 19 is installed on the first vertical plate 6. The sliding block 20 is slidably installed on the guide rail 19, and the sliding direction of the sliding block 20 relative to the guide rail 19 is the same as the sliding direction of the plurality of first cylinders 3 relative to the plurality of second cylinders 4. The support 21 is installed on the sliding block 20. The upper hopper 7 is installed on the support 21.

[0049] In the embodiments of the present disclosure, the guide rail 19 and the sliding block 20 jointly function as a guide support to enable the upper hopper 7 to slide relative to the first vertical plate 6. The support 21 is used to support the installation of the upper hopper 7 to facilitate subsequent installation and disassembly of the upper hopper 7.

[0050] Optionally, as shown in Figure 1 and Figure 4 , a lower hopper 22 is further included. The lower hopper 22 is connected to the bottom surface of the flat plate 1 and surrounds the through hole.

[0051] In the embodiments of the present disclosure, the lower hopper 22 connected to the bottom surface of the flat plate 1 and surrounding the through hole is further included. The lower hopper 22 is used to receive the falling preservative to facilitate filling the preservative into the container.

[0052] Optionally, as shown in Figure 1 and Figure 4 Figure 1 Figure 4 , support legs 23 are further included. The support legs 23 are respectively installed at the four corners of the bottom surface of the flat plate 1.

[0053] In the embodiments of the present disclosure, the support legs 23 respectively installed at the four corners of the bottom surface of the flat plate 1 are further included. The support legs 23 at the four corners are all used to abut against the ground to support the entire device.

[0054] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A filling device for food preservative production, characterized in that, The application relates to a device for feeding a plurality of first cylinders, comprising: a flat plate comprising a through hole; a circular plate located above the flat plate, the plane of the circular plate being parallel to the plane of the flat plate; a plurality of first cylinders penetrating the circular plate and uniformly distributed around the center of the circular plate; a plurality of second cylinders respectively slidably sleeving the outer walls of the plurality of first cylinders, each second cylinder comprising a shaft shoulder located on the outer side surface of the second cylinder, and the plurality of second cylinders being attached to the top surface of the flat plate; a plurality of springs respectively sleeving the plurality of second cylinders and respectively located between the circular plate and the plurality of shaft shoulders; a first vertical plate connected to the top surface of the flat plate and located on the side of the circular plate; an upper hopper slidably mounted on the first vertical plate, the sliding direction of the upper hopper relative to the first vertical plate being the same as the sliding direction of the plurality of first cylinders relative to the plurality of second cylinders, and the discharge end of the upper hopper being attached to the top surface of the circular plate; a driving member mounted between the flat plate and the circular plate and configured to drive the circular plate to perform linear motion and rotary motion; wherein, under the driving of the driving member, the plurality of first cylinders slide relative to the plurality of second cylinders, and the plurality of first cylinders and the plurality of second cylinders can respectively move below the discharge end and above the through hole. The driving member comprises: a speed reducer, the output end of the speed reducer being concentrically distributed with the circular plate; a shaft coupling mounted on the output end of the speed reducer; a rotating shaft mounted on the shaft coupling and connected to the top center of the circular plate; wherein the input end of the speed reducer can be controlled to rotate so as to drive the circular plate to perform rotary motion. The driving member further comprises: a motor, the center line of the rotating end of the motor being parallel to the center line of the input end of the speed reducer; a driving pulley mounted on the rotating end of the motor; a driven pulley mounted on the input end of the speed reducer; a belt sleeving the driving pulley and the driven pulley. The driving member further comprises: a linear slide, the moving direction of the moving end of the linear slide being the same as the sliding direction of the plurality of first cylinders relative to the plurality of second cylinders; a bending plate mounted on the moving end of the linear slide; wherein the speed reducer and the motor are mounted on the bending plate. The driving member further comprises: a second vertical plate connected to the top surface of the flat plate and located on the side of the circular plate; wherein the linear slide is mounted on the second vertical plate. Further comprising: a third cylinder mounted on the top surface of the circular plate and concentrically distributed with the circular plate; wherein the discharge end of the upper hopper is located inside the third cylinder. Further comprising: a guide rail mounted on the first vertical plate; a sliding block slidably mounted on the guide rail, the sliding direction of the sliding block relative to the guide rail being the same as the sliding direction of the plurality of first cylinders relative to the plurality of second cylinders; a support mounted on the sliding block; wherein the upper hopper is mounted on the support. Further comprising: a lower hopper connected to the bottom surface of the flat plate and surrounding the through hole. Further comprising: a supporting leg respectively mounted at the four corners of the bottom surface of the flat plate. ​ 2. The filling device for food preservative production according to claim 1, characterized in that, ​ ​ ​ ​ ​ 3. The filling device for food preservative production according to claim 2, characterized in that, ​ ​ ​ ​ ​ 4. The filling device for food preservative production according to claim 3, characterized in that, ​ ​ ​ ​ 5. The filling device for food preservative production according to claim 4, characterized in that, ​ ​ ​ 6. The filling device for food preservative production according to any one of claims 1 to 5, characterized in that, ​ ​ ​ 7. The filling device for food preservative production according to any one of claims 1 to 5, characterized in that, ​ ​ ​ ​ ​ 8. The filling device for food preservative production according to any one of claims 1 to 5, characterized in that, ​ ​ 9. The filling device for food preservative production according to any one of claims 1 to 5, characterized in that, ​ ​

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