Rotary liquid filling machine

By incorporating adjustment components and a filling head design on a rotary liquid filling machine, the problem of cumbersome mold replacement is solved, enabling rapid adjustment of mold size and stability of liquid filling, thereby improving filling efficiency and quality.

CN224212389UActive Publication Date: 2026-05-08SHANGHAI XINPING FINE CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XINPING FINE CHEM CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing rotary liquid filling machines require mold changes when dealing with bottles of different sizes, which makes the changeover process cumbersome and affects the filling efficiency of the equipment.

Method used

By setting adjustment components on the mounting mold, including positioning grooves, adjustment blocks, transmission gears, racks and pressure plates, the mold size can be quickly adjusted, and the connection design between the filling head and the filling tube can adapt to bottle shapes of different depths and avoid liquid splashing.

Benefits of technology

It enables rapid adjustment of mold size, improves filling efficiency, reduces liquid splashing, and enhances filling quality and the cleanliness of the working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filling machines, in particular to a rotary liquid filling machine which comprises an equipment base, a filling head is arranged on the upper side of the equipment base, the lower end of the filling head is connected with a filling pipe, the upper side of the equipment base is rotationally connected with an installation mold, and a plurality of sets of positioning grooves are formed in the edge of the installation mold. An adjusting assembly is arranged in the positioning groove and comprises a positioning box, a limiting groove, an adjusting block, an inserting rod, a transmission gear, an inserting groove, a first rack, a second rack, a connecting rod, a fixing plate, a telescopic rod, a pressing plate and a supporting spring. The adjusting block drives the transmission gear to rotate, the transmission gear drives the first rack and the second rack to slide, then the pressing plates are driven to slide towards the inner side or the outer side, the distance between the pressing plates is adjusted, the mold is suitable for bottle types of different sizes, the size of the mold is conveniently and rapidly adjusted, and the filling efficiency is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of filling machine technology, specifically to a rotary liquid filling machine. Background Technology

[0002] Liquid filling has wide applications in various industries such as food, beverage, pharmaceuticals, and chemicals. Rotary liquid filling machines are automated filling equipment widely used in the food, beverage, pharmaceutical, and cosmetics industries. They achieve continuous and efficient filling operations through a rotating worktable, offering advantages such as high precision, high speed, and ease of operation.

[0003] In existing rotary filling machines, the mold size of the rotating platform is fixed during use, making it difficult to adapt to different bottle shapes. For different bottle sizes, it is necessary to replace the mold with one that is compatible with the bottle, which is a cumbersome process and affects the filling efficiency of the equipment.

[0004] Therefore, it is necessary to invent a rotary liquid filling machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a rotary liquid filling machine to solve the problem in the technology that requires changing molds to match different bottle sizes, which is a cumbersome process and affects the filling efficiency of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary liquid filling machine, including a base, a filling head is provided on the upper side of the base, a filling tube is connected to the lower end of the filling head, an installation mold is rotatably connected to the upper side of the base, multiple positioning grooves are formed at the edge of the installation mold, and an adjustment component is provided inside the positioning groove. The adjustment component includes a positioning box, a limiting groove, an adjusting block, a connecting rod, a transmission gear, a connecting groove, a first rack, a second rack, a connecting rod, a fixing plate, a telescopic rod, a pressure plate, and a support spring.

[0007] By adopting the above technical solution, the filling head, together with the filling tube, fills the liquid into the bottle. At the same time, during use, the adjustment block drives the transmission gear to rotate, and the transmission gear drives the first rack and the second rack to slide, thereby driving the pressure plate to slide inward or outward, adjusting the distance between the pressure plates to suit different bottle sizes. This facilitates quick adjustment of the mold size and effectively improves filling efficiency.

[0008] Optionally, the positioning box is in the shape of a cross, the positioning box is fixedly connected to the inner bottom wall of the positioning groove, a support frame is fixedly connected to the upper surface of the positioning box, limit grooves are opened on the front and rear sides and the left and right sides of the upper surface of the positioning box, and an insertion hole is opened at the center of the upper surface of the positioning box.

[0009] Optionally, the transmission gear is rotatably connected to the center of the bottom wall of the positioning box, and a slot is provided at the center of the transmission gear. The insertion rod is fixedly connected to the lower surface of the adjusting block, and the lower end of the insertion rod passes through the insertion hole and is inserted and fixed into the insertion slot.

[0010] By adopting the above technical solution, the adjusting block and the plug rod work together to drive the transmission gear to rotate.

[0011] Optionally, the upper surface of the positioning box has multiple sets of locking holes arranged in a ring outside the insertion hole, and the lower surface of the adjusting block is fixedly connected to a locking block, which is inserted and fixed to the locking hole.

[0012] By adopting the above technical solution, the locking block is inserted into the locking hole to fix the adjusting block, thereby fixing the transmission gear and preventing the pressure plate transmission gear from rotating during use.

[0013] Optionally, a first positioning guide rail is fixedly connected to the lower side of the inner walls on both the front and rear sides of the positioning box, and a second positioning guide rail is fixedly connected to the upper side of the inner walls on both the left and right sides of the positioning box. Guide grooves are formed on the surfaces of the first and second positioning guide rails, and guide rods are fixedly connected to the sides of the first and second racks. The guide rods are slidably connected to the guide grooves.

[0014] By adopting the above technical solution, the guide rod slides inside the guide groove to position the first rack and the second rack, thereby improving the stability of the first rack and the second rack during the sliding process.

[0015] Optionally, the two sets of first racks are located on the left and right sides of the positioning box, respectively. The inner end of the two sets of first racks is meshed with the lower half of the transmission gear. The two sets of second racks are located on the front and rear sides of the positioning box, respectively. The inner end of the two sets of second racks is meshed with the upper half of the transmission gear. The outer end of each of the first and second racks is fixedly connected to a connecting rod. The upper ends of the four sets of connecting rods all pass through the limiting groove and are fixedly connected to a fixing plate.

[0016] By adopting the above technical solution, the transmission gear rotates clockwise, causing the first rack and the second rack to slide outward, which in turn causes the four sets of fixing plates to slide outward synchronously, thus fixing the large-sized bottle. The transmission gear rotates counterclockwise, causing the first rack and the second rack to slide inward, which in turn causes the four sets of fixing plates to slide inward synchronously, thus fixing the small-sized bottle.

[0017] Optionally, each of the four sets of fixing plates has a pressure plate on its inner side. Multiple sets of telescopic rods are slidably connected to the surface of the fixing plate. One end of the telescopic rod is fixedly connected to the pressure plate. A support spring is sleeved on the surface of the telescopic rod. The two ends of the support spring are respectively pressed against the surfaces of the fixing plate and the pressure plate.

[0018] By adopting the above technical solution, during the adjustment process, the distance between the four sets of pressure plates is adjusted to be slightly smaller than the diameter of the bottle. When the bottle is inserted between the four sets of pressure plates, the four sets of pressure plates are pressed outward, thereby pressing the support spring. The support spring, together with the pressure plates, clamps and fixes the bottle, effectively improving the stability of the bottle during the filling process.

[0019] Optionally, a rotary cylinder is fixedly installed inside the equipment base. The output end of the rotary cylinder is fixedly connected to the center of the lower surface of the mounting mold. An equipment bracket is fixedly connected to the rear side of the equipment base. A lifting cylinder is fixedly installed at the upper end of the equipment bracket. The lower end of the piston rod in the lifting cylinder is fixedly connected to the filling head. A feeding hose is fixedly connected to the side of the filling head. A connecting pipe is fixedly connected to the lower end of the filling head. A connector is fixedly connected to the upper end of the filling pipe. The connector is threadedly connected to the connecting pipe.

[0020] By adopting the above technical solution, the rotary cylinder is used to drive the installation mold to rotate, rotating the empty bottle to the lower side of the filling head. At this time, the piston rod in the lifting cylinder pushes the filling head and filling tube downward, inserting the filling tube into the bottle body for filling. At the same time, the filling tube can be replaced according to the depth of the bottle body, so that the lower end of the filling tube is close to the bottom of the bottle body, avoiding liquid splashing during the filling process.

[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0022] 1. This utility model uses an adjusting block to drive a transmission gear to rotate, which in turn drives the first rack and the second rack to slide, thereby causing the pressure plate to slide inward or outward. This allows for adjustment of the distance between the pressure plates, making it suitable for different bottle sizes and facilitating quick adjustment of the mold size, thus effectively improving filling efficiency.

[0023] 2. This utility model fixes the filling tube to the filling head by connecting the connector and the connecting pipe threaded connection. For bottle shapes of different depths, the filling tube is replaced with one that is suitable for the bottle shape, so that the lower end of the filling tube is close to the bottom of the bottle, which reduces the generation of air bubbles during the filling process and avoids liquid splashing during the filling process, thereby improving the filling quality and the cleanliness of the working environment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the filling head structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the installation mold structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the external structure of the positioning box of this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of the positioning box of this utility model;

[0029] Figure 6 This is a schematic diagram of the adjusting block and transmission gear structure of this utility model;

[0030] Figure 7 A schematic diagram of the transmission rack structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Equipment base; 11. Rotary cylinder; 12. Equipment support; 13. Lifting cylinder; 14. Mounting mold; 15. Positioning groove; 2. Filling head; 21. Feed hose; 22. Connecting pipe; 23. Filling pipe; 24. Connector; 3. Adjustment assembly; 31. Positioning box; 32. Support frame; 33. Limiting groove; 34. Adjusting block; 35. Locking block; 36. Insertion rod; 37. Insertion hole; 38. Locking hole; 39. Transmission gear; 310. Insertion groove; 4. First positioning guide rail; 41. Second positioning guide rail; 42. Guide groove; 43. First rack; 44. Second rack; 45. Guide rod; 46. Connecting rod; 5. Fixing plate; 51. Telescopic rod; 52. Pressure plate; 53. Support spring. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 5The rotary liquid filling machine shown includes a base 1, a filling head 2 on the upper side of the base 1, a filling tube 23 connected to the lower end of the filling head 2, and an installation mold 14 rotatably connected to the upper side of the base 1. Multiple positioning grooves 15 are formed on the edge of the installation mold 14, and an adjustment assembly 3 is provided inside each positioning groove 15. The adjustment assembly 3 includes a positioning box 31, a limiting groove 33, an adjusting block 34, a connecting rod 36, a transmission gear 39, a connecting groove 310, a first rack 43, a second rack 44, a connecting rod 46, a fixing plate 5, a telescopic rod 51, a pressure plate 52, and a support spring. Spring 53, a rotary cylinder 11 is fixedly installed inside the equipment base 1, the output end of the rotary cylinder 11 is fixedly connected to the center of the lower surface of the mounting mold 14, an equipment bracket 12 is fixedly connected to the rear side of the equipment base 1, a lifting cylinder 13 is fixedly installed at the upper end of the equipment bracket 12, the lower end of the piston rod of the lifting cylinder 13 is fixedly connected to the filling head 2, a feeding hose 21 is fixedly connected to the side of the filling head 2, a connecting pipe 22 is fixedly connected to the lower end of the filling head 2, a connector 24 is fixedly connected to the upper end of the filling pipe 23, and the connector 24 is threadedly connected to the connecting pipe 22.

[0035] In the process of use, firstly, according to the size of the bottle, the distance between the pressure plates 52 in the adjusting component 3 is adjusted to a suitable size. Then, the bottle is placed in the positioning groove 15. At this time, the fixing plate 5, the telescopic rod 51, the pressure plate 52 and the support spring 53 cooperate to clamp and fix the bottle. Then, the rotating cylinder 11 drives the mounting mold 14 to rotate, rotating the empty bottle to the lower side of the rear filling head 2. Then, the piston rod in the lifting cylinder 13 pushes down, pushing the filling head 2 and the filling tube 23 down, inserting the filling tube 23 into the bottle. Then, the liquid enters the filling head 2 through the feed hose 21, and then fills the bottle through the filling tube 23.

[0036] In addition, before filling, select a filling tube 23 that matches the depth of the bottle, rotate the connector 24 counterclockwise to remove the filling tube 23 from the bottom of the filling head 2, then attach the connector 24 at the top of the matching filling tube 23 to the surface of the connector 22, and then rotate the connector 24 clockwise to install the matching filling tube 23 on the bottom of the filling head 2. This ensures that the bottom of the filling tube 23 is close to the bottom of the bottle during filling, thereby preventing liquid splashing during filling, effectively reducing the generation of air bubbles, and improving filling quality.

[0037] See Figures 4 to 6The positioning box 31 is cross-shaped and is fixedly connected to the inner bottom wall of the positioning groove 15. A support frame 32 is fixedly connected to the upper surface of the positioning box 31. Limiting grooves 33 are provided on the front and rear sides and the left and right sides of the upper surface of the positioning box 31. An insertion hole 37 is provided at the center of the upper surface of the positioning box 31. The transmission gear 39 is rotatably connected to the center of the inner bottom wall of the positioning box 31. An insertion groove 310 is provided at the center of the transmission gear 39. The insertion rod 36 is fixedly connected to the lower surface of the adjusting block 34. The lower end of the insertion rod 36 passes through the insertion hole 37 and is inserted and fixedly connected to the insertion groove 310. Multiple sets of locking holes 38 are provided in a ring shape on the upper surface of the positioning box 31 outside the insertion hole 37. A locking block 35 is fixedly connected to the lower surface of the adjusting block 34 and is inserted and fixedly connected to the locking hole 38.

[0038] Specifically, by rotating the adjusting block 34, the transmission gear 39 is driven to rotate. During the adjustment process, the adjusting block 34 is first pulled upward, causing the locking block 35 to disengage from the inside of the locking hole 38. At the same time, the insertion rod 36 slides upward in the insertion groove 310. Then, the adjusting block 34 is rotated, and the adjusting block 34 drives the transmission gear 39 to rotate through the insertion rod 36. After adjusting the pressure plate 52 to the appropriate position, the adjusting block 34 is pressed downward, and the locking block 35 is inserted into the inside of the locking hole 38. At this time, the adjusting block 34 cannot rotate, thereby locking the transmission gear 39 to prevent it from rotating during use and improving the stability of the bottle during the filling process.

[0039] See Figure 4 , Figure 5 and Figure 7The positioning box 31 has a first positioning guide rail 4 fixedly connected to the lower side of the inner walls on both the front and rear sides, and a second positioning guide rail 41 fixedly connected to the upper side of the inner walls on both the left and right sides. Guide grooves 42 are formed on the surfaces of both the first and second positioning guide rails 41. Guide rods 45 are fixedly connected to the sides of both the first and second racks 43 and 44, and the guide rods 45 are slidably connected to the guide grooves 42. Two sets of first racks 43 are located on the left and right sides of the positioning box 31, respectively. One end of each set of first racks 43 meshes with the lower half of the transmission gear 39. The two sets of second racks 44 are located on the left and right sides of the positioning box 31, respectively. On the front and rear sides of the positioning box 31, one end of the inner side of the two sets of second racks 44 is meshed with the upper half of the transmission gear 39. One end of the outer side of the first rack 43 and the second rack 44 are fixedly connected to a connecting rod 46. The upper ends of the four sets of connecting rods 46 pass through the limiting groove 33 and are fixedly connected to a fixing plate 5. The inner side of the four sets of fixing plates 5 is provided with a pressure plate 52. Multiple sets of telescopic rods 51 are slidably connected to the surface of the fixing plate 5. One end of the telescopic rod 51 is fixedly connected to the pressure plate 52. A support spring 53 is sleeved on the surface of the telescopic rod 51. The two ends of the support spring 53 are respectively pressed against the surfaces of the fixing plate 5 and the pressure plate 52.

[0040] At the same time, the transmission gear 39 rotates clockwise, causing the first rack 43 and the second rack 44 to slide outward, which in turn causes the four sets of fixed plates 5 to slide outward synchronously, increasing the distance between the pressure plates 52. The transmission gear 39 rotates counterclockwise, causing the first rack 43 and the second rack 44 to slide inward, which in turn causes the four sets of fixed plates 5 to slide inward synchronously, decreasing the distance between the pressure plates 52.

[0041] Specifically, when filling larger bottles, rotating the adjusting block 34 clockwise causes the adjusting block 34 to drive the transmission gear 39 to rotate clockwise via the connecting rod 36. The transmission gear 39 pushes the first rack 43 and the second rack 44 outward, causing the first rack 43 and the second rack 44 to slide outward from inside the first positioning guide rail 4 and the second positioning guide rail 41, respectively. This, in turn, causes the connecting rod 46 to slide outward, which in turn causes the four sets of fixing plates 5 to slide outward synchronously. The fixing plates 5 then cause the pressure plate 52 to slide outward, thus causing the four... The distance between the pressure plates 52 is increased, making it slightly smaller than the bottle size. When the bottle is inserted between the four pressure plates 52, the pressure plates 52 are squeezed, and the support spring 53 is compressed. The support spring 53 and the pressure plates 52 work together to clamp and fix the bottle, effectively improving the stability of the bottle. Conversely, when filling smaller bottles, the adjusting block 34 is rotated counterclockwise to reduce the distance between the four pressure plates 52. The bottle is then fixed between the four pressure plates 52 to secure it.

[0042] The working principle of this utility model is as follows: The adjusting block 34 drives the transmission gear 39 to rotate, and the transmission gear 39 drives the first rack 43 and the second rack 44 to slide, thereby driving the pressure plate 52 to slide inward or outward, adjusting the distance between the pressure plates 52 to suit different bottle sizes, facilitating quick adjustment of the mold size, and effectively improving filling efficiency; At the same time, the filling tube 23 is fixed to the filling head 2 through the threaded connection of the connector 24 and the connecting tube 22. For bottle shapes of different depths, the filling tube 23 is replaced with a suitable one, so that the lower end of the filling tube 23 is close to the bottom of the bottle, reducing the generation of air bubbles during the filling process and avoiding liquid splashing during the filling process, thus improving the filling quality and the cleanliness of the working environment.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rotary liquid filling machine, comprising a base (1), characterized in that: A filling head (2) is provided on the upper side of the equipment base (1). A filling tube (23) is connected to the lower end of the filling head (2). An installation mold (14) is rotatably connected to the upper side of the equipment base (1). Multiple positioning grooves (15) are opened at the edge of the installation mold (14). An adjustment component (3) is provided inside the positioning groove (15). The adjustment component (3) includes a positioning box (31), a limiting groove (33), an adjustment block (34), a plug rod (36), a transmission gear (39), a plug groove (310), a first rack (43), a second rack (44), a connecting rod (46), a fixing plate (5), a telescopic rod (51), a pressure plate (52), and a support spring (53).

2. The rotary liquid filling machine according to claim 1, characterized in that: The positioning box (31) is in the shape of a cross. The positioning box (31) is fixedly connected to the inner bottom wall of the positioning groove (15). A support frame (32) is fixedly connected to the upper surface of the positioning box (31). Limiting grooves (33) are opened on the front and rear sides and the left and right sides of the upper surface of the positioning box (31). An insertion hole (37) is opened at the center of the upper surface of the positioning box (31).

3. A rotary liquid filling machine according to claim 2, characterized in that: The transmission gear (39) is rotatably connected to the center of the bottom wall of the positioning box (31). The center of the transmission gear (39) is provided with a plug groove (310). The plug rod (36) is fixedly connected to the lower surface of the adjusting block (34). The lower end of the plug rod (36) passes through the plug hole (37) and is plugged into the plug groove (310) for fixation.

4. A rotary liquid filling machine according to claim 3, characterized in that: The upper surface of the positioning box (31) is provided with a ring of locking holes (38) located outside the insertion hole (37). The lower surface of the adjusting block (34) is fixedly connected with a locking block (35), and the locking block (35) is inserted and fixed with the locking hole (38).

5. A rotary liquid filling machine according to claim 1, characterized in that: The positioning box (31) has a first positioning guide rail (4) fixedly connected to the lower side of the inner wall on both the front and rear sides. The positioning box (31) has a second positioning guide rail (41) fixedly connected to the upper side of the inner wall on both the left and right sides. The surfaces of the first positioning guide rail (4) and the second positioning guide rail (41) are provided with guide grooves (42). The sides of the first rack (43) and the second rack (44) are fixedly connected with guide rods (45). The guide rods (45) are slidably connected to the guide grooves (42).

6. A rotary liquid filling machine according to claim 5, characterized in that: Two sets of first racks (43) are located on the left and right sides of the positioning box (31), respectively. The inner end of the two sets of first racks (43) is meshed with the lower half of the transmission gear (39). Two sets of second racks (44) are located on the front and rear sides of the positioning box (31), respectively. The inner end of the two sets of second racks (44) is meshed with the upper half of the transmission gear (39). The outer end of the first rack (43) and the second rack (44) are fixedly connected with connecting rods (46). The upper ends of the four sets of connecting rods (46) all pass through the limiting groove (33) and are fixedly connected with fixing plates (5).

7. A rotary liquid filling machine according to claim 1, characterized in that: Each of the four sets of fixed plates (5) has a pressure plate (52) on its inner side. Multiple sets of telescopic rods (51) are slidably connected to the surface of the fixed plate (5). One end of the telescopic rod (51) is fixedly connected to the pressure plate (52). A support spring (53) is sleeved on the surface of the telescopic rod (51). The two ends of the support spring (53) are respectively pressed against the surfaces of the fixed plate (5) and the pressure plate (52).

8. A rotary liquid filling machine according to claim 1, characterized in that: A rotary cylinder (11) is fixedly installed inside the equipment base (1). The output end of the rotary cylinder (11) is fixedly connected to the center of the lower surface of the mounting mold (14). An equipment bracket (12) is fixedly connected to the rear side of the equipment base (1). A lifting cylinder (13) is fixedly installed at the upper end of the equipment bracket (12). The lower end of the piston rod in the lifting cylinder (13) is fixedly connected to the filling head (2). A feeding hose (21) is fixedly connected to the side of the filling head (2). A connecting pipe (22) is fixedly connected to the lower end of the filling head (2). A connector (24) is fixedly connected to the upper end of the filling pipe (23). The connector (24) is threadedly connected to the connecting pipe (22).