Center rotary lifting mechanism

Abstract

The utility model discloses a central rotary lifting mechanism, and relates to the field of packaging machinery for liquids such as wines and beverages. Under the condition that no extra power source is added, necessary rotation and lifting motion can be stably output to the cap screwing head installed at the bottom end of the cap screwing device. The central rotary lifting mechanism comprises a shell, a sliding sleeve, a bearing roller, a mandrel, a rotary gear, a connecting shaft sleeve and a power output head; the bearing roller is rotatably mounted on the connecting seat and is always pressed on the top surface of the lifting cam; the top end of the core shaft is fixedly connected with the connecting base, the connecting shaft sleeve is rotatably installed in the sliding sleeve, the bottom end of the connecting shaft sleeve is fixedly connected with the power output head, the rotating gear is in a hollow column shape, the connecting shaft sleeve is sleeved with the rotating gear, and the rotating gear and the connecting shaft sleeve rotate synchronously through a key. And the rotary gear is engaged with the fixed gear. The transmission device has the advantages of exquisite structure, good transmission effect and the like on the whole.

Description

Technical Field

[0001] The utility model relates to the field of packaging machinery for liquids such as wines and beverages. Background Art

[0002] In the field of liquid packaging machinery, screw capping and sealing equipment generally includes a screw capping head device and a transmission mechanism. The transmission mechanism is required to provide the screw capping head device with high-speed rotation and rapid lifting and lowering of the cam of the sealing equipment. For example, a Chinese invention patent entitled "Device for Sealing Containers" with publication number "CN101827777B" published on September 8, 2010 shows that the case Figure 1 A transmission scheme is shown in which a lifting cam is used to provide lifting motion and a driving motor is used to provide rotational motion. Figure 2 A transmission scheme is shown in FIG. 1 , which uses a motor and a screw to provide lifting motion, and another drive motor to provide rotational motion. However, the above two schemes undoubtedly add more power components to the entire transmission mechanism, making the coordination between the various power components very complicated and difficult to control.

[0003] Therefore, how to optimize the structure of the transmission mechanism so that it can better and more efficiently output rotation and lifting motion to the capping head has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a central rotating lifting mechanism, which can stably output the necessary rotation and lifting motion to the capping head installed at the bottom without adding an additional power source.

[0005] The technical solution of this utility model is: Figure 1 As shown, the central rotating lifting mechanism 10 is fixedly connected to the central rotating shaft of the capping and sealing device via a mounting base 903. The central rotating shaft of the capping and sealing device is rotatably connected to the frame. The frame is also fixedly mounted with a fixed gear 902 centered on the axis of the central rotating shaft and a lifting cam 901. The lifting cam 901 is annular and has raised portions on its top surface at the bottle inlet and bottle outlet areas.

[0006] like Figure 2 、 3 As shown, the central rotary lifting mechanism 10 includes a housing 101, a sliding sleeve 108, a bearing roller 102, a core shaft 103, a rotating gear 104, a connecting sleeve 105 and a power output head 106;

[0007] The housing 101 is vertically fixed on the mounting seat 903. The lower portion of the sliding sleeve 108 is installed through the housing 101. The top of the sliding sleeve 108 is fixedly installed with a connecting seat 107. The bearing roller 102 is rotatably mounted on the connecting seat 107 and is always pressed against the top surface of the lifting cam 901. When the bearing roller 102 passes the raised portion, the sliding sleeve 108 rises as a whole relative to the housing 101. When the bearing roller 102 leaves the raised portion, the sliding sleeve 108 descends as a whole relative to the housing 101.

[0008] The core shaft 103 passes through the inside of the sliding sleeve 108, and the top of the core shaft 103 is fixedly connected to the connecting seat 107. The connecting sleeve 105 is sleeved on the core shaft 103 and rotatably installed inside the sliding sleeve 108. The bottom end of the connecting sleeve 105 is connected to the power output head 106 as a whole. The power output head 106 is provided with an external thread for installing the screw capping head 904, and the core shaft 103 also passes through the power output head 106; the rotating gear 104 is hollow cylindrical, and the rotating gear 104 is sleeved on the connecting sleeve 105 and rotates synchronously with the connecting sleeve 105 through the key 109. The rotating gear 104 is meshed with the fixed gear 902.

[0009] Furthermore, a vertical opening is formed on the upper portion of the sliding sleeve 108 on one side facing the fixed gear 902 , and the rotating gear 104 and the fixed gear 902 are meshed at the vertical opening.

[0010] Furthermore, the housing 101 and the sliding sleeve 108 are clearance-fitted, and the housing 101 is provided with an oil filling hole connected to a lubricating oil supply source and an eccentric oil groove.

[0011] Furthermore, the lower portion of the connecting sleeve 105 is rotatably connected to the lower portion of the sliding sleeve 108 via two bearings 1052 , and lubricating oil is filled between the connecting sleeve 105 and the lower portion of the sliding sleeve 108 .

[0012] Furthermore, an upper sealing sleeve 1053 which is sleeved on the connecting sleeve 105 is fixedly connected to the middle portion of the sliding sleeve 108 , and a shaft seal 1054 is provided between the inner wall of the sealing sleeve 1053 and the outer wall of the connecting sleeve 105 ;

[0013] The bottom end of the sliding sleeve 108 is fixedly connected to a lower sealing sleeve 1055 sleeved on the power output head 106 , and a rotary seal 1056 is provided between the lower sealing sleeve 1055 and the power output head 106 .

[0014] During the working process of the utility model, when the bearing roller passes through the bottle inlet area, the central rotating lifting mechanism drives the screw capping head to rise, so that the wine bottle and the bottle cap can enter the bottom of the screw capping head as the bottle inlet star wheel is turned; when the bearing roller leaves the bottle inlet area and rolls toward the bottle outlet area, the central rotating lifting mechanism drives the screw capping head to descend, and performs the capping and pressing operations until the bearing roller enters the bottle outlet area, and the central rotating lifting mechanism drives the screw capping head to rise, so that the wine bottle and the bottle cap can leave the bottom of the screw capping head as the bottle outlet star wheel is turned.

[0015] During the above process, the core shaft and the power output head transmit the lifting motion to the capping head. Moreover, because the rotating gear is in meshing with the fixed gear, which is fixedly connected to the frame, the rotating gear is forced to rotate with the swing of the central rotating lifting mechanism, and drives the connecting sleeve and the power output head to rotate around the core shaft, thereby continuously outputting the rotational motion to the capping head. Overall, it has the advantages of a compact structure and good transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the structural diagram of this case.

[0017] Figure 2 This is the axial cross-sectional view of this case.

[0018] Figure 3 yes Figure 2 Cross-sectional view along the BB direction,

[0019] Figure 4 It is a schematic diagram of the layout of the capping machine.

[0020] In the central rotating lifting mechanism of FIG10 , 901 is the lifting cam, 902 is the fixed gear, 903 is the mounting base, and 904 is the capping head;

[0021] 101 is the housing, 102 is the bearing roller, 103 is the core shaft, 104 is the rotating gear, 105 is the connecting sleeve, 106 is the power output head, 107 is the connecting seat, 108 is the sliding sleeve, and 109 is the key;

[0022] 1051 is a limit sleeve, 1052 is a bearing, 1053 is an upper sealing sleeve, 1054 is a shaft seal, 1055 is a lower sealing sleeve, and 1056 is a rotary seal. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the technical features of this patent, this patent is described in detail below through specific implementation methods and in combination with its accompanying drawings.

[0024] The overall layout of the capping machine is as follows Figure 4As shown, the capping machine is arranged between the bottle inlet star wheel and the bottle outlet star wheel. In this way, the container with the aluminum cap will be transported into the capping machine by the bottle inlet star wheel. As the capping machine rotates, the lifting and rotating motion is transmitted to the capping head through the transmission component, which presses and seals the aluminum cap on the container mouth. After the final capping is completed, the container is discharged by the bottle outlet star wheel.

[0025] like Figure 1 As shown, the central rotating lifting mechanism 10 is fixedly connected to the central rotating shaft of the capping and sealing device via a mounting base 903. The central rotating shaft of the capping and sealing device is rotatably connected to the frame. The frame is also fixedly mounted with a fixed gear 902 centered on the axis of the central rotating shaft and a lifting cam 901. The lifting cam 901 is annular and has raised portions on its top surface at the bottle inlet and bottle outlet areas.

[0026] like Figure 2 、 3 As shown, the central rotary lifting mechanism 10 includes a housing 101, a sliding sleeve 108, a bearing roller 102, a core shaft 103, a rotating gear 104, a connecting sleeve 105 and a power output head 106;

[0027] The housing 101 is vertically fixed on the mounting seat 903. The lower portion of the sliding sleeve 108 is installed through the housing 101. The top of the sliding sleeve 108 is fixedly installed with a connecting seat 107. The bearing roller 102 is rotatably mounted on the connecting seat 107 and is always pressed against the top surface of the lifting cam 901. When the bearing roller 102 passes the raised portion, the sliding sleeve 108 rises as a whole relative to the housing 101. When the bearing roller 102 leaves the raised portion, the sliding sleeve 108 descends as a whole relative to the housing 101.

[0028] The core shaft 103 passes through the interior of the sliding sleeve 108, and the top end of the core shaft 103 is fixedly connected to the connecting seat 107. The connecting sleeve 105 is sleeved on the core shaft 103 and rotatably installed inside the sliding sleeve 108. The bottom end of the connecting sleeve 105 is connected to the power output head 106 as a whole. The power output head 106 is provided with an external thread for mounting a screw capping head 904, and the core shaft 103 also passes through the power output head 106. A transition block is also rotatably connected inside the power output head 106. The center of the transition block is provided with a square hole that passes through from top to bottom. The bottom end of the core shaft 103 is inserted into the square hole and rotates synchronously with the transition block; the rotating gear 104 is hollow cylindrical, and the rotating gear 104 is sleeved on the connecting sleeve 105 and rotates synchronously with the connecting sleeve 105 through a key 109. The rotating gear 104 is meshed with the fixed gear 902.

[0029] In this way, in the process of the central rotating lifting mechanism 10 swinging with the rotation of the central rotating shaft of the capping and sealing equipment, when the bearing roller 102 passes the bottle inlet area, the sliding sleeve 108 drives the capping head to rise, so that the wine bottle and the bottle cap can enter the bottom of the capping head as the bottle inlet star wheel is turned. When the bearing roller 102 leaves the bottle inlet area and rolls toward the bottle outlet area, the sliding sleeve 108 drives the capping head to descend to perform the capping and pressing operations until the bearing roller 102 enters the bottle outlet area, and the sliding sleeve 108 drives the capping head to rise, so that the wine bottle and the bottle cap can leave the bottom of the capping head as the bottle outlet star wheel is turned.

[0030] In the above process:

[0031] The core shaft 103 and the power output head 106 transmit the lifting motion to the capping head, and the core shaft 103 remains stationary relative to the connecting seat 107 and the sliding sleeve 108;

[0032] Because the rotating gear 104 is meshed with the fixed gear 902, which is in turn fixedly connected to the frame, the rotating gear 104 is forced to rotate as the central rotary lifting mechanism 10 swings, driving the connecting sleeve 105 and the power output head 106 to rotate around the core shaft 103, thereby continuously outputting rotational motion to the capping head 904. The core shaft 101 of the central lifting mechanism and the core shaft of the capping head can be simultaneously inserted into the square hole of the transition block, so that the two core shafts do not participate in the transmission of the rotational motion.

[0033] A vertical opening is formed on the upper portion of the sliding sleeve 108 facing the fixed gear 902 , and the rotating gear 104 and the fixed gear 902 are meshed at the vertical opening.

[0034] Existing lifting structures often use lubrication-free plastic bearings or linear bearings as support, ensuring top-to-bottom concentricity. This degree of concentricity still relies on processing techniques. Lubrication-free plastic bearings utilize friction between internal surface particles and the rigid shaft, converting sliding friction into rolling friction, thereby reducing the frictional resistance and heat generated by lifting. Linear bearings operate in a similar manner. However, once the plastic particles in the bearing wear out, significant resistance is generated, leading to severe wear of the central shaft. Consequently, this case proposes the following measures.

[0035] The housing 101 and the sleeve 108 are fitted with a clearance. The housing 101 is provided with an oil inlet hole connected to a lubricating oil supply source and an eccentric oil groove. This allows lubricating oil to flow into the gap through the oil inlet hole and be recovered through the oil return hole. Ultimately, this provides effective lubrication during the reciprocating movement of the sleeve relative to the housing. It should be noted that a sealing ring is also fixedly mounted at the bottom of the housing 101 to prevent downward oil leakage through this gap.

[0036] A limiting sleeve 1051 is fixedly installed on the top end of the connecting sleeve 105 , and the limiting sleeve 1051 is fixedly connected to the rotating gear 104 .

[0037] In addition, in order to achieve the rotational connection of the connecting sleeve, the lower part of the connecting sleeve 105 is rotationally connected to the lower part of the sliding sleeve 108 through two bearings 1052, and lubricating oil is filled between the connecting sleeve 105 and the lower part of the sliding sleeve 108.

[0038] In the above description, in order to ensure the smooth rotation of the connecting sleeve 105 in the housing 101, it is necessary to fill or actively inject lubricating oil into the lower housing. However, below the central rotating lifting mechanism 10 are the screw capping head and the wine bottle. Once the lubricating oil leaks, it will seriously affect the hygiene of the wine bottle. Accordingly, this case also proposes the following sealing measures.

[0039] The middle part of the sliding sleeve 108 is also fixedly connected to an upper sealing sleeve 1053 sleeved on the connecting sleeve 105, and a shaft seal 1054 is provided between the inner wall of the sealing sleeve 1053 and the outer wall of the connecting sleeve 105;

[0040] The bottom end of the sliding sleeve 108 is fixedly connected to a lower sealing sleeve 1055 sleeved on the power output head 106 , and a rotary seal 1056 is provided between the lower sealing sleeve 1055 and the power output head 106 .

[0041] In this way, a comprehensive and stable seal can be formed between the connecting sleeve 105, the power output head 106 and the lower part of the sliding sleeve 108, effectively avoiding the possibility of lubricating oil contaminating the wine bottle.

[0042] There are many specific implementation methods of the present invention. The above is only the preferred implementation method of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be considered as the scope of protection of the present invention.

Claims

1. A central rotating lifting mechanism, characterized in that: The central rotating lifting mechanism (10) comprises a housing (101), a sliding sleeve (108), a bearing roller (102), a core shaft (103), a rotating gear (104), a connecting sleeve (105) and a power output head (106); The housing (101) is vertically fixedly mounted on the mounting seat (903), the lower portion of the sliding sleeve (108) is installed through the housing (101), the top of the sliding sleeve (108) is fixedly mounted with a connecting seat (107), the bearing roller (102) is rotatably mounted on the connecting seat (107), and is always pressed on the top surface of the lifting cam (901), when the bearing roller (102) passes through the raised portion, the sliding sleeve (108) rises as a whole relative to the housing (101), and when the bearing roller (102) leaves the raised portion, the sliding sleeve (108) falls as a whole relative to the housing (101); The core shaft (103) passes through the interior of the sliding sleeve (108), and the top end of the core shaft (103) is fixedly connected to the connecting seat (107). The connecting sleeve (105) is sleeved on the core shaft (103) and rotatably installed inside the sliding sleeve (108). The bottom end of the connecting sleeve (105) is connected to the power output head (106) as a whole. The power output head (106) is provided with an external thread for installing a capping head (904), and the core shaft (103) also passes through the power output head (106); the rotating gear (104) is hollow and cylindrical. The rotating gear (104) is sleeved on the connecting sleeve (105) and keeps synchronous rotation with the connecting sleeve (105) through a key (109). The rotating gear (104) keeps meshing with the fixed gear (902).

2. A central rotating lifting mechanism according to claim 1, characterized in that: A vertical opening is provided on the upper portion of the sliding sleeve (108) facing the fixed gear (902), and the rotating gear (104) and the fixed gear (902) are kept in meshing engagement at the vertical opening.

3. The central rotating lifting mechanism according to claim 1, characterized in that: The housing (101) and the sliding sleeve (108) are clearance-fitted, and an oil filling hole and an eccentric oil groove are provided on the housing (101).

4. The central rotating lifting mechanism according to claim 1, characterized in that: The lower portion of the connecting sleeve (105) is rotatably connected to the lower portion of the sliding sleeve (108) via two bearings (1052), and lubricating oil is filled between the connecting sleeve (105) and the lower portion of the sliding sleeve (108).

5. The central rotating lifting mechanism according to claim 1, characterized in that: The middle portion of the sliding sleeve (108) is also fixedly connected to an upper sealing sleeve (1053) sleeved on the connecting sleeve (105), and a shaft seal (1054) is provided between the inner wall of the sealing sleeve (1053) and the outer wall of the connecting sleeve (105); The bottom end of the sliding sleeve (108) is fixedly connected to a lower sealing sleeve (1055) sleeved on the power output head (106), and a rotary seal (1056) is provided between the lower sealing sleeve (1055) and the power output head (106).

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