Swing arm double head cap grabbing and capping machine
Patent Information
- Application Number
- CN202522658405.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-15
AI Technical Summary
上述针对液态物料的灌装旋盖处理方式，虽有相关设备辅助，但多数步骤仍需人工进行干预，整体生产效率较低
[0018]本实用新型中，旋盖组件设置多组旋盖单元与旋盖头，并通过一组升降组件与旋转组件控制，效率更高，成本更低。升降组件驱动旋盖组件与旋转组件共同下降，位于出盖工位的旋盖组件抓取瓶盖，位于旋盖工位的旋盖组件将瓶盖拧紧于瓶体上，实现同步抓取与旋盖，无间歇作业，工作效率更高。而且，旋转组件可以将抓取瓶盖的旋盖组件旋转至旋盖工位，并同步将待抓取瓶盖的旋盖组件旋转至出盖工位上，同步实现位置的调换，作业更简单方便，空间利用率高，成本更低。
Smart Images
Figure CN224900838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filling equipment technology, and in particular to a swing-arm type double-head capping and capping machine. Background Technology
[0002] Liquid materials in the food, chemical, and pharmaceutical industries need to be poured into corresponding bottles after production is completed, and the bottles need to be capped.
[0003] Currently, the filling and capping of liquid materials is mostly completed manually with the assistance of related equipment. Specifically, operators first move the bottle under the filling nozzle of the filling machine, the filling machine fills the bottle with the liquid material, and then the operator manually screws the cap onto the bottle neck to complete the filling and capping process. Although the above-mentioned filling and capping method for liquid materials has the assistance of related equipment, most steps still require manual intervention, resulting in low overall production efficiency. Utility Model Content
[0004] In order to overcome the technical defects mentioned in the background art, the purpose of this utility model is to provide a swing-arm type double-head capping and capping machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A swing-arm type double-head capping and screwing machine includes a cap-lowering device for conveying bottle caps, a screwing device disposed at the cap-outing station of the cap-lowering device, and a bottle-holding device disposed at the screwing station of the screwing device. The screwing device includes a frame, a lifting assembly disposed on the frame, a rotating assembly connected to the output end of the lifting assembly, and screwing assemblies fixed at intervals on the rotating assembly. The screwing assembly includes a mounting plate, multiple sets of screwing units disposed on the mounting plate, and screwing heads disposed at the output ends of the screwing units. The mounting plate is connected to the output end of the rotating assembly. The rotating assembly is used to rotate the screwing head holding the bottle cap at the cap-outing station by a set angle so that it is positioned at the screwing station, and another set of empty screwing heads moves synchronously to the cap-outing station. The screwing units are used to drive the screwing heads to grip the bottle cap and screw the bottle cap onto the bottle body.
[0007] By adopting the above technical solution, the capping assembly is equipped with multiple capping units and capping heads, and controlled by a lifting and rotating assembly, resulting in higher efficiency and lower cost. The lifting assembly drives the capping and rotating assemblies to descend together. The capping assembly at the cap dispensing station grabs the bottle cap, while the capping assembly at the capping station tightens the cap onto the bottle body, achieving synchronous grabbing and capping without interruption, thus increasing work efficiency. Moreover, the rotating assembly can rotate the capping assembly that grabs the bottle cap to the capping station and simultaneously rotate the capping assembly that needs to grab the bottle cap to the cap dispensing station, achieving synchronous position switching, making the operation simpler and more convenient, with higher space utilization and lower cost.
[0008] Furthermore, both the capping unit and the capping head are configured in two sets, with the two sets of capping units and capping heads symmetrically arranged on the mounting plate, which saves costs and makes the structure more compact.
[0009] Furthermore, a detection rod is provided at one end of the mounting plate, and a corresponding sensing block is provided on the frame. The sensing block is electrically connected to the detection rod, which improves safety during the lifting process and controls the lifting height.
[0010] Furthermore, the rotating assembly includes a rotary motor, a driving pulley, a timing belt, a driven pulley, and a connecting column. The output shaft of the rotary motor is fixedly connected to the driving pulley. The connecting column is connected to the frame via a coupling. The driven pulley is connected to the upper end of the connecting column, and the mounting plate is fixed to the lower end of the connecting column. The timing belt connects the driving pulley and the driven pulley, resulting in a simple structure and stable transmission.
[0011] Furthermore, the lifting component and the rotating component are staggered, resulting in a more compact structure and higher space utilization.
[0012] Furthermore, the frame includes a first connecting plate, a second connecting plate disposed below the first connecting plate, a third connecting plate disposed below the second connecting plate, multiple first guide rods disposed between the first connecting plate and the third connecting plate, and multiple second guide rods disposed between support surfaces below the second connecting plate and the third connecting plate. The dimensions of the first connecting plate, the second connecting plate, and the third connecting plate decrease sequentially. The second connecting plate is slidably connected to the first guide rod, and the rotating assembly is disposed on the third connecting plate. The lifting assembly is disposed on the first connecting plate. The lifting assembly includes a lifting motor and a lifting rod. The output shaft of the lifting motor is connected to the lifting rod, and the lower end of the lifting rod passes through the second connecting plate and connects to the third connecting plate. This design provides high lifting and guiding accuracy, stable operation, and improves the positioning accuracy of the capping head.
[0013] Furthermore, the second connecting plate is provided with a through groove on one side of the rotating component, which is a clearance design that helps protect the rotating component, increases the lifting stroke, and improves compatibility.
[0014] Furthermore, a top cap cylinder and a feeding seat are provided below the cap dispensing station. The output shaft of the top cap cylinder passes through the lower end of the feeding seat and is located in the feeding groove of the feeding seat. The discharge end of the lower cap device is connected to the feeding groove. When gripping a bottle cap, the capping head is located above the feeding groove, and the output shaft of the top cap cylinder extends to lift the bottle cap in the feeding groove to the gripping end of the capping head, improving the efficiency of cap removal and the stability of cap gripping.
[0015] Furthermore, the swing-arm type double-head capping machine also includes a bottle feeding device, which comprises a conveyor line for transporting bottles, a bottle-blocking assembly, and a bottle-entry detection component. The bottle-entry detection component is located at the front end of the bottle-blocking assembly and is used to detect whether a bottle has entered the capping station. The bottle-blocking assembly stops the next bottle from entering the capping station, ensuring orderly operation and improving efficiency and quality. The conveyor line has a clearance notch at the location of the bottle-holding device.
[0016] Furthermore, the bottle-holding device is provided in two sets, each including a bottle-holding cylinder and a bottle-holding block. The output shaft of the bottle-holding cylinder is fixedly connected to one end of the bottle-holding block, and the other end of the bottle-holding block is provided with an arc-shaped groove. The groove fits snugly against the surface of the bottle body, resulting in a better fit and improving the stability of the bottle body during the capping process, thereby improving the quality and efficiency of cap installation.
[0017] In summary, the beneficial effects of this utility model are as follows:
[0018] In this invention, the capping assembly is equipped with multiple capping units and capping heads, controlled by a lifting and rotating assembly, resulting in higher efficiency and lower cost. The lifting assembly drives the capping and rotating assemblies to descend together. The capping assembly at the cap dispensing station grabs the bottle cap, while the capping assembly at the capping station tightens the cap onto the bottle body, achieving synchronous grabbing and capping without interruption, thus increasing work efficiency. Moreover, the rotating assembly can rotate the capping assembly that grabs the bottle cap to the capping station and simultaneously rotate the capping assembly that needs to grab the bottle cap to the cap dispensing station, achieving simultaneous position switching, making the operation simpler and more convenient, with higher space utilization and lower cost. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an embodiment of the swing-arm type double-head capping and capping machine of this utility model.
[0020] Figure 2This is a structural schematic diagram from another perspective of an embodiment of the swing-arm type double-head capping and capping machine of this utility model.
[0021] Figure 3 This is a front view of an embodiment of the capping device of the swing-arm type double-head capping machine of this utility model.
[0022] Figure 4 This is a schematic diagram of the installation structure of one embodiment of the rotating component and the screw cap component of this utility model.
[0023] Figure 5 This is a schematic diagram of the lower cap device of an embodiment of the swing-arm type double-head cap-grabbing and capping machine of this utility model.
[0024] Figure 6 This is a schematic diagram of the installation structure of an embodiment of the bottle holding device and bottle delivery device of this utility model.
[0025] Explanation of the reference numerals in the figure:
[0026] 1. Swing-arm type double-head capping machine; 2. Lower cap device; 21. Top cap cylinder; 22. Feeding seat; 31. Frame; 311. First connecting plate; 312. Second connecting plate; 313. Third connecting plate; 314. First guide rod; 315. Second guide rod; 32. Lifting assembly; 321. Lifting motor; 322. Lifting rod; 33. Rotating assembly; 331. Rotating motor; 332. Drive wheel; 333. Synchronous belt 334. Driven wheel; 335. Connecting column; 34. Capping assembly; 341. Mounting plate; 342. Capping unit; 3421. Capping motor; 3422. Capping cylinder; 343. Capping head; 35. Detection rod; 36. Induction block; 4. Bottle holding device; 41. Bottle holding cylinder; 42. Bottle holding block; 5. Bottle feeding device; 51. Conveyor line; 52. Bottle blocking assembly; 53. Bottle inlet detection piece; 6. Bottle cap; 7. Bottle body. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0028] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0029] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0030] The following is in conjunction with the appendix Figure 1-6 The embodiments of this utility model will be described in further detail below.
[0031] A swing-arm type double-head capping and capping machine 1, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a capping device 2 for conveying bottle caps 6, a capping device located at the capping station of the capping device 2, and a bottle holding device 4 located at the capping station of the capping device. The capping device includes a frame 31, a lifting assembly 32 mounted on the frame 31, a rotating assembly 33 connected to the output end of the lifting assembly 32, and capping assemblies 34 fixed at intervals on the rotating assembly 33. The capping assembly 34 includes a mounting plate 341, multiple capping units 342 mounted on the mounting plate 341, and capping heads 343 located at the output ends of the capping units 342. The mounting plate 341 is connected to the output end of the rotating component 33. The rotating component 33 is used to rotate the capping head 343, which is located at the capping station and holds the bottle cap 6, by a set angle so that it is located at the capping station. Another set of empty capping heads 343 move synchronously to the capping station. The capping unit 342 is used to drive the capping head 343 to pick up the bottle cap 6 and screw the bottle cap 6 onto the bottle body 7.
[0032] Specifically, the capping assembly 34 is equipped with multiple capping units 342 and capping heads 343, and is controlled by a lifting assembly 32 and a rotating assembly 33, resulting in higher efficiency and lower cost. The lifting assembly 32 drives the capping assembly 34 and the rotating assembly 33 to descend together. The capping assembly 34 located at the cap dispensing station grabs the bottle cap 6, and the capping assembly 34 located at the capping station tightens the bottle cap 6 onto the bottle body 7, achieving synchronous grabbing and capping without interruption, resulting in higher work efficiency. Moreover, the rotating assembly 33 can rotate the capping assembly 34 that grabs the bottle cap 6 to the capping station, and simultaneously rotate the capping assembly 34 that is about to grab the bottle cap 6 to the cap dispensing station, realizing synchronous position switching, making the operation simpler and more convenient, with higher space utilization and lower cost.
[0033] In some embodiments, please refer to Figure 3 , Figure 4 The capping unit 342 and capping head 343 are both configured in two sets, symmetrically arranged on the mounting plate 341, saving costs and making the structure more compact. The rotating assembly 33 drives the capping unit 342 and the corresponding capping head 343 to rotate 180°, allowing for switching between the capping and capping stations, making it more convenient to use. The capping unit 342 can be configured as a 360° rotatable capping cylinder 3422 and a capping motor 3421 that drives the capping cylinder 3422 and the capping head 343 to rotate.
[0034] To improve the safety of the lifting process, enhance control precision, and increase feedback efficiency, a detection rod 35 is provided at one end of the mounting plate 341, and a corresponding sensing block 36 is provided on the frame 31. The sensing block 36 is electrically connected to the detection rod 35 to improve the safety of the lifting process and control the lifting height.
[0035] In some embodiments, please refer to Figure 3 , Figure 4 The rotating assembly 33 includes a rotary motor 331, a driving pulley 332, a timing belt 333, a driven pulley 334, and a connecting column 335. The output shaft of the rotary motor 331 is fixedly connected to the driving pulley 332. The connecting column 335 is connected to the frame 31 via a coupling. The driven pulley 334 is connected to the upper end of the connecting column 335, and a mounting plate 341 is fixed to the lower end of the connecting column 335. A timing belt 333 connects the driving pulley 332 and the driven pulley 334. The structure is simple and the transmission is stable.
[0036] Preferably, the lifting component 32 and the rotating component 33 are staggered, resulting in a more compact structure and higher space utilization.
[0037] Specifically, the rotary motor 331 is located above the capping station, and the connecting column 335 is located on the vertical line between the capping station and the top cover station. The connecting column 335 and the lifting motor 321 are arranged in a way that avoids each other, resulting in a more compact structure and higher space utilization.
[0038] In some embodiments, please refer to Figure 2 , Figure 3 The frame 31 includes a first connecting plate 311, a second connecting plate 312 disposed below the first connecting plate 311, a third connecting plate 313 disposed below the second connecting plate 312, multiple first guide rods 314 disposed between the first connecting plate 311 and the third connecting plate 313, and multiple second guide rods 315 disposed between the support surfaces below the second connecting plate 312 and the third connecting plate 313. The dimensions of the first connecting plate 311, the second connecting plate 312, and the third connecting plate 313 decrease sequentially, saving costs and reducing space occupation. The second connecting plate 312 is slidably connected to the first guide rod 314, and a rotating assembly 33 is disposed on the third connecting plate 313. A lifting assembly 32 is disposed on the first connecting plate 311. The lifting assembly 32 includes a lifting motor 321 and a lifting rod 322. The output shaft of the lifting motor 321 is connected to the lifting rod 322. The lower end of the lifting rod 322 passes through the second connecting plate 312 and is connected to the third connecting plate 313. The lifting and guiding accuracy is high and the operation is stable, which helps to improve the positioning accuracy of the capping head 343.
[0039] The second connecting plate 312 is provided with a through groove on one side of the rotating component 33. This recessed design helps to protect the rotating component 33, increases the lifting stroke, and improves compatibility.
[0040] In some embodiments, please refer to Figure 1 , Figure 5 Below the capping station, a capping cylinder 21 and a feeding seat 22 are installed. The output shaft of the capping cylinder 21 passes through the lower end of the feeding seat 22 and is located in the feeding groove of the feeding seat 22. The discharge end of the capping device 2 is connected to the feeding groove. When the bottle cap 6 is picked up, the capping head 343 is located above the feeding groove. The output shaft of the capping cylinder 21 extends to lift the bottle cap 6 in the feeding groove to the gripping end of the capping head 343, improving the efficiency of cap picking and the stability of cap gripping. Specifically, after the feeding seat 22 detects a bottle cap 6, the capping cylinder 21 is activated to lift the bottle cap 6. Simultaneously, the capping head 343 descends above the feeding seat 22 to grip the bottle cap 6 on the capping cylinder 21.
[0041] In some embodiments, please refer to Figure 1 , Figure 6The swing-arm type double-head capping machine 1 also includes a bottle feeding device 5, which includes a conveyor line 51 for conveying bottles 7, a bottle-blocking assembly 52, and a bottle-entry detection element 53. The bottle-entry detection element 53 is located at the front end of the bottle-blocking assembly 52 and is used to detect whether a bottle 7 has entered the capping station. The bottle-blocking assembly 52 is used to stop the next bottle 7 waiting to enter the capping station, ensuring orderly operation and improving work efficiency and quality. The conveyor line 51 is provided with a clearance notch at the position of the bottle gripping device 4.
[0042] In some embodiments, please refer to Figure 6 The bottle holding device 4 is provided in two sets. The bottle holding device 4 includes a bottle holding cylinder 41 and a bottle holding block 42. The output shaft of the bottle holding cylinder 41 is fixedly connected to one end of the bottle holding block 42. The other end of the bottle holding block 42 is provided with an arc-shaped groove. The groove fits and connects with the surface of the bottle body 7, resulting in a better fit and improving the stability of the bottle body 7 during the capping process, thereby improving the quality and efficiency of the bottle cap 6 installation.
[0043] In the specific operation process, after the machine is started, the capping device 2 conveys the bottle cap 6 to the feeding seat 22. Once the feeding seat 22 detects the bottle cap 6, the top cap cylinder 21 below the feeding seat 22 lifts the bottle cap 6. Then, the lifting motor 321 rotates, driving the third connecting plate 313 and its capping device downwards to a set height via the lifting rod 322. Next, the capping cylinder 3422 at the capping station retracts, causing the capping head 343 to clamp the bottle cap 6. The lifting motor 321 reverses, driving the third connecting plate 313 and its capping device, along with the gripped bottle cap 6, upwards. Simultaneously, the top cap cylinder 21 below the feeding seat 22 retracts, and the bottle cap 6 on the capping device 2 automatically slides down onto the feeding seat 22. Thus, the cap removal process is completed.
[0044] The rotary motor 331 rotates, causing the capping assembly 34 to rotate 180°. Simultaneously, after the feeding seat 22 detects the bottle cap 6 again, the top cap cylinder 21 below lifts the bottle cap 6. When the bottle feeding device 5 detects a bottle 7 at the capping station, the two sets of bottle-holding cylinders 41 cooperate to hold the bottle. Subsequently, the lifting motor 321 rotates, driving the third connecting plate 313 and the capping device on it to move downward to the set height via the lifting rod 322. The capping cylinder 3422 above the top cap cylinder 21 retracts, causing the capping head 343 to clamp the bottle cap 6. At the same time, the capping motor 3421 above the bottle 7 at the capping station drives the capping cylinder 3422, the capping head 343, and the bottle cap 6 on it to rotate, tightening the bottle cap 6 onto the bottle neck of the bottle 7. Finally, the lifting motor 321 reverses to drive the third connecting plate 313 and its two sets of capping devices and the grasped bottle cap 6 to rise, simultaneously completing a capping and grasping action. The structure is simple, the cost is low, and the production efficiency is high.
[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A swing-arm type double-head capping and capping machine, characterized in that, The device includes a capping device (2) for conveying bottle caps (6), a capping device located at the capping station of the capping device (2), and a bottle holding device (4) located at the capping station of the capping device; the capping device includes a frame (31), a lifting assembly (32) located on the frame (31), a rotating assembly (33) connected to the output end of the lifting assembly (32), and capping assemblies (34) fixed at intervals on the rotating assembly (33); the capping assembly (34) includes a mounting plate (341) and multiple sets of capping single caps located on the mounting plate (341). The unit (342) and the capping head (343) disposed at the output end of the capping unit (342) are connected to the output end of the rotating assembly (33). The rotating assembly (33) is used to rotate the capping head (343) holding the bottle cap (6) at the capping station by a set angle so that it is located at the capping station, and another set of empty capping heads (343) moves synchronously to the capping station. The capping unit (342) is used to drive the capping head (343) to pick up the bottle cap (6) and screw the bottle cap (6) onto the bottle body (7).
2. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, The capping unit (342) and the capping head (343) are both configured in two sets, and the two sets of capping units (342) and capping heads (343) are symmetrically arranged on the mounting plate (341).
3. The swing-arm type double-head capping and capping machine according to claim 2, characterized in that, A detection rod (35) is provided at one end of the mounting plate (341), and a sensing block (36) is correspondingly provided on the frame (31). The sensing block (36) is electrically connected to the detection rod (35).
4. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, The rotating assembly (33) includes a rotary motor (331), a drive wheel (332), a timing belt (333), a driven wheel (334), and a connecting column (335); the output shaft of the rotary motor (331) is fixedly connected to the drive wheel (332), the connecting column (335) is connected to the frame (31) through a coupling, the upper end of the connecting column (335) is connected to the driven wheel (334), and the lower end of the connecting column (335) is fixed to the mounting plate (341); the timing belt (333) is connected between the drive wheel (332) and the driven wheel (334).
5. The swing-arm type double-head capping and capping machine according to claim 4, characterized in that, The lifting component (32) and the rotating component (33) are offset from each other.
6. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, The frame (31) includes a first connecting plate (311), a second connecting plate (312) disposed below the first connecting plate (311), a third connecting plate (313) disposed below the second connecting plate (312), a plurality of first guide rods (314) disposed between the first connecting plate (311) and the third connecting plate (313), and a plurality of second guide rods (315) disposed between the support surfaces below the second connecting plate (312) and the third connecting plate (313); the first connecting plate (311), the second connecting plate (312), and the third connecting plate (313) are further defined. The dimensions of the plates (313) are arranged in descending order; the second connecting plate (312) is slidably connected to the first guide rod (314), and the rotating component (33) is provided on the third connecting plate (313); the lifting component (32) is provided on the first connecting plate (311); the lifting component (32) includes a lifting motor (321) and a lifting rod (322), the output shaft of the lifting motor (321) is connected to the lifting rod (322), and the lower end of the lifting rod (322) passes through the second connecting plate (312) and is connected to the third connecting plate (313).
7. The swing-arm type double-head capping and capping machine according to claim 6, characterized in that, The second connecting plate (312) is provided with a groove that runs vertically through the rotating assembly (33) on one side.
8. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, Below the cap dispensing station, a top cap cylinder (21) and a feeding seat (22) are provided. The output shaft of the top cap cylinder (21) passes through the lower end of the feeding seat (22) and is located in the feeding groove of the feeding seat (22). The discharge end of the lower cap device (2) is connected to the feeding groove. When the bottle cap (6) is clamped, the capping head (343) is located above the feeding groove. The output shaft of the top cap cylinder (21) extends to lift the bottle cap (6) in the feeding groove to the clamping end of the capping head (343).
9. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, The swing-arm type double-head capping machine also includes a bottle feeding device (5), which includes a conveyor line (51) for conveying bottles (7), a bottle-blocking assembly (52), and a bottle-entry detection component (53). The bottle-entry detection component (53) is located at the front end of the bottle-blocking assembly (52) and is used to detect whether a bottle (7) has entered the capping station. The bottle-blocking assembly (52) is used to stop the next bottle (7) to enter the capping station. The conveyor line (51) is provided with a clearance notch at the position of the bottle-holding device (4).
10. The swing-arm type double-head capping and capping machine according to claim 1, characterized in that, The bottle holding device (4) is provided in two sets. The bottle holding device (4) includes a bottle holding cylinder (41) and a bottle holding block (42). The output shaft of the bottle holding cylinder (41) is fixedly connected to one end of the bottle holding block (42). The other end of the bottle holding block (42) is provided with an arc-shaped slot, which is in close contact with the surface of the bottle body (7).