Vertical coupling constant-torque screw cap head assembly
By using the design of return spring and magnetic adjustment device in the cap machine, the problems of skewed cap and inconvenient torque adjustment are solved, and the accuracy and efficiency of caps are improved, ensuring the smooth progress of caps.
Patent Information
- Application Number
- CN202421041445.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing capping machine equipment can easily cause the cap to skew when grabbing the bottle cap, resulting in poor fit of the top pressure mechanism, which may lead to the inability to rotate the cap normally or the product leaks, and inconvenient output torque adjustment.
A vertically coupled constant torque rotary cap head assembly is designed, using upper connection piece, top cover rod, cap mechanism, rebound guide piece, intermediate shaft, magnetic force adjustment device and surface end cover plate, through return spring and magnetic force adjustment device Achieve the correcting and torque adjustment of the bottle cap to ensure the accuracy and efficiency of the capping process.
This design prevents the bottle cap from directly hitting the bottle opening through the buffering effect of the return spring, which improves the accuracy and efficiency of the cap, and adjusts the output torque easily and quickly through the magnetic adjustment device to ensure the continuity and efficiency of the capping process.
Smart Images
Figure CN222159706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capping machine equipment, in particular to a vertically coupled constant torque capping head assembly. Background Art
[0002] The capping machine is also called a capping machine, a capping machine or a capping machine. It is used to tighten and loosen the caps of plastic bottles and glass bottles after packaging.
[0003] When the existing screw cap gripper grabs the cap, the cap is easily skewed, which causes the cap and the container to be poorly matched when the pressing mechanism is in operation. In severe cases, it may even cause the cap to fail to be screwed normally or cause the product to leak and be damaged. In addition, in some screw cap heads with adjustable output torque, the staff usually need to use additional tools to adjust the output torque, which is very inconvenient. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a vertically coupled constant torque capping head assembly, including an upper connecting member, a top cover rod, a capping mechanism, a rebound guide, an intermediate shaft, a magnetic adjustment device and a face end cover plate, the upper end center of the upper connecting member is rotatably connected to the top cover rod by installing a bearing group, the lower end of the top cover rod is transmission connected to the capping mechanism, and a reset spring is attached to the outer periphery of the top cover rod; a rebound guide is adapted to be installed on the inner side of the lower end of the upper connecting member, an adjusting nut is provided on the outer periphery of the rebound guide, the lower end of the adjusting nut is connected to the outer wall of the intermediate shaft through a top pressure spring, the lower part of the intermediate shaft is connected to the magnetic adjustment device, and the lower end of the magnetic adjustment device is provided with a face end cover plate.
[0005] Preferably, the magnetic adjustment device includes an adjusting sleeve, a ball, a connecting ring, an adjusting ring, soft iron, a permanent magnet connecting sleeve and a screw cover inner sleeve. The lower part of the intermediate shaft is rotatably connected to the adjusting sleeve. A spiral groove is provided on the inner wall of the adjusting sleeve, and a ball is adapted to be installed in the spiral groove. A connecting ring is provided at the lower end of the spiral groove. The lower end of the connecting ring is fixedly connected to the face end cover plate. The upper end of the face end cover plate is connected to the lower end of the adjusting sleeve through an adjusting ring. Soft iron is provided on the inner side of the connecting ring. A permanent magnet connecting sleeve is provided on the inner side of the soft iron. A screw cover inner sleeve is provided above the permanent magnet connecting sleeve. The screw cover inner sleeve is attached to the upper end of the inner wall of the adjusting sleeve.
[0006] Preferably, the screw cap mechanism includes a screw cap inner shaft, a deep groove ball bearing, a ball bearing, a bearing washer, a rotating shaft and a capping head. The lower end of the intermediate shaft is connected to the outer wall of the screw cap inner shaft through a deep groove ball bearing. A ball bearing is provided at the lower end of the screw cap inner shaft. A bearing washer is provided between the ball bearing and the deep groove ball bearing. A rotating shaft is provided around the outer side of the bearing washer. The upper end of the rotating shaft extends into the deep groove ball bearing. A capping head is provided at the lower end of the top cap rod.
[0007] Preferably, the bearing mounting group includes a bearing mounting member, a plane bearing and a connecting shaft. A bearing mounting member is provided at the center of the upper end of the upper connecting member. A plane bearing is adapted to be installed in the bearing mounting member. The upper end of the plane bearing is rotatably connected to the connecting shaft, and the lower end of the plane bearing is rotatably connected to the upper end of the top cover rod.
[0008] Preferably, a limiting boss is provided on the top cover rod, the lower end of the limiting boss is abutted against the upper end of a return spring, the lower end of the return spring is abutted against the upper end of a lower bushing, and the lower bushing is sleeved on the top cover rod.
[0009] Preferably, a clamping ring is provided at the upper end of the limiting boss, and an upper bushing is provided inside the clamping ring; and the lower end of the clamping ring abuts against the upper end of the intermediate shaft.
[0010] Preferably, guide key strips are provided on both sides of the intermediate shaft.
[0011] Preferably, a mounting groove is provided on the inner shaft of the rotary cover, and a lower bushing is provided in the mounting groove.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) The utility model is connected to the top cover rod by rotating through the center of the upper end of the upper connecting member by installing a bearing group, the lower end of the top cover rod is connected to the rotating cover mechanism, and a return spring is attached to the outer periphery of the top cover rod; a rebound guide is installed on the inner side of the lower end of the upper connecting member, and an adjusting nut is provided on the outer periphery of the rebound guide. The lower end of the adjusting nut is connected to the outer wall of the intermediate shaft through a top pressure spring, and the lower part of the intermediate shaft is connected to the magnetic adjustment device, and a surface end cover is provided at the lower end of the magnetic adjustment device. The utility model has a simple overall structure. After the capping head used in conjunction with the bottle cap grabs the bottle cap, if the bottle mouth and the bottle cap are not completely coaxial when pressing the cap, the return spring can give the capping head a certain buffering force, so that the bottle cap will not directly collide with the bottle mouth and cause damage, and there is a gap between the capping head and the inner wall of the screw cap inner shaft and the rotating shaft. Under the buffering action of the return spring, the capping head can also straighten the bottle cap with position error, so that it is convenient to press the bottle cap into the bottle mouth for screwing the cap at one time later. During the screwing process of the bottle cap, the device does not have high requirements on the accuracy of the corresponding position of the bottle cap and the bottle mouth, and can perform adaptive adjustment. Even when the bottle cap and the bottle mouth are not completely coaxial, the bottle cap can be quickly and smoothly pressed into the bottle mouth for screwing the cap, which is beneficial to improving the working efficiency of screwing the cap.
[0014] (2) The magnetic adjustment device provided in the utility model can adjust the outer sleeve by rotating the outer sleeve, and the ball bearings on the inner wall of the outer sleeve will rotate along the spiral groove. The ball bearings cooperate with the connecting ring to move the soft iron toward the inner wall of the inner sleeve of the rotary cover. The permanent magnetic connecting sleeve does not move, and the soft iron moves up and down relative to the outer side of the permanent magnetic connecting sleeve, so that the vertical relative overlapping area of the soft iron and the permanent magnetic connecting sleeve changes, thereby adjusting the magnetic coupling between the soft iron and the permanent magnetic connecting sleeve. When the magnetic adjustment device is sealed as a whole, the output torque can be quickly adjusted, the structure is simple, and the adjustment method is simple and fast.
[0015] (3) The utility model provides guide key strips on both sides of the intermediate shaft. The positioning function of the guide key strips further improves the coaxiality between the rebound guide, the intermediate shaft and the top cover rod, and cooperates with the return spring and the top pressure spring to ensure that the return path of the top cover rod after movement does not deviate, thereby facilitating the continuous screwing of the cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a cross-sectional view of the utility model.
[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.
[0018] Figure 3 It is the front view of the utility model.
[0019] Figure 4 It is a partial enlarged view of the utility model. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.
[0021] like Figures 1 to 4 As shown, a vertically coupled constant torque capping head assembly includes an upper connecting member 1, a top cover rod 2, a capping mechanism 3, a rebound guide member 4, an intermediate shaft 5, a magnetic adjustment device 6, a surface end cover plate 7, a reset spring 8, an adjusting nut 9, a top pressure spring 10, an adjustment sleeve 11, a ball 12, a connecting ring 13, an adjusting ring 14, a soft iron 15, a permanent magnetic connecting sleeve 16, a capping inner sleeve 17, a capping inner shaft 18, a deep groove ball bearing 19, a ball bearing 20, a bearing gasket 21, a rotating shaft 22, a capping head 23, a bearing mounting member 24, a plane bearing 25, a connecting shaft 26, a limiting boss 27, a lower bushing 28, a clamping ring 29, an upper bushing 30, and a guide key strip 31.
[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] like Figures 1 to 4 As shown, the center of the upper end of the upper connecting member 1 is rotatably connected to the top cover rod 2 through a bearing installation group. The bearing installation group includes a bearing installation member 24, a plane bearing 25 and a connecting shaft 26. A bearing installation member 24 is provided at the center of the upper end of the upper connecting member 1. A plane bearing 25 is adapted to be installed in the bearing installation member 24. The upper end of the plane bearing 25 is rotatably connected to the connecting shaft 26, and the lower end of the plane bearing 25 is rotatably connected to the upper end of the top cover rod 2.
[0025] The lower end of the top cover rod 2 is connected to the capping mechanism 3 in a transmission manner, and a reset spring 8 is attached to the outer periphery of the top cover rod 2; a rebound guide 4 is adapted and installed on the inner side of the lower end of the upper connecting member 1, and an adjusting nut 9 is arranged on the outer periphery of the rebound guide 4. The lower end of the adjusting nut 9 is connected to the outer wall of the intermediate shaft 5 through a top pressure spring 10. The top pressure spring 10 can effectively limit the distance between the adjustment sleeve 11 and the adjusting nut 9, and avoid motion interference between the rebound guide 4 and the magnetic adjustment device 6. Guide key strips 31 are provided on both sides of the intermediate shaft 5. The positioning function of the guide key strips 31 further improves the coaxiality between the rebound guide 4, the intermediate shaft 5 and the top cover rod 2, and cooperates with the reset spring 8 and the top pressure spring 10 to ensure that the return path of the top cover rod 2 after movement does not deviate, so as to facilitate the continuous capping work.
[0026] The lower part of the intermediate shaft 5 is connected to the magnetic force adjustment device 6 , and the lower end of the magnetic force adjustment device 6 is provided with a surface end cover plate 7 .
[0027] The magnetic adjustment device 6 includes an adjusting sleeve 11, a ball 12, a connecting ring 13, an adjusting ring 14, a soft iron 15, a permanent magnetic connecting sleeve 16 and a screw cap inner sleeve 17. The lower part of the intermediate shaft 5 is rotatably connected to the adjusting sleeve 11. A spiral groove is provided on the inner wall of the adjusting sleeve 11, and the ball 12 is adapted to be installed in the spiral groove; a connecting ring 13 is provided at the lower end of the spiral groove, and the lower end of the connecting ring 13 is fixedly connected to the face end cover plate 7, and the upper end of the face end cover plate 7 is connected to the lower end of the adjusting sleeve 11 through the adjusting ring 14; a soft iron 15 is provided on the inner side of the connecting ring 13, and a permanent magnetic connecting sleeve 16 is provided on the inner side of the soft iron 15, and a screw cap inner sleeve 17 is provided above the permanent magnetic connecting sleeve 16, and the screw cap inner sleeve 17 is attached to the upper end of the inner wall of the adjusting sleeve 11. By rotating the adjustment sleeve 11, the ball 12 on its inner wall will rotate along the spiral groove, and the ball 12 cooperates with the connecting ring 13 to make the soft iron 15 move toward the inner wall of the inner sleeve 17 of the rotary cover, while the permanent magnetic connecting sleeve 16 does not move. The soft iron 15 moves up and down relative to the outer side of the permanent magnetic connecting sleeve 16, so that the relative overlapping area of the soft iron 15 and the permanent magnetic connecting sleeve 16 in the vertical direction changes, thereby adjusting the magnetic coupling between the soft iron 15 and the permanent magnetic connecting sleeve 16. When the magnetic adjustment device 6 is sealed as a whole, the output torque can be quickly adjusted, the structure is streamlined, and the adjustment method is simple and fast.
[0028] The screw cap mechanism 3 includes a screw cap inner shaft 18, a deep groove ball bearing 19, a ball bearing 20, a bearing washer 21, a rotating shaft 22 and a capping head 23. The lower end of the intermediate shaft 5 is connected to the outer wall of the screw cap inner shaft 18 through the deep groove ball bearing 19. A ball bearing 20 is provided at the lower end of the screw cap inner shaft 18, and a bearing washer 21 is sleeved between the ball bearing 20 and the deep groove ball bearing; a rotating shaft 22 is provided around the outer side of the bearing washer 21, and the upper end of the rotating shaft 22 extends into the deep groove ball bearing 19; a capping head 23 is provided at the lower end of the top cover rod 2. Specifically, in the present embodiment, the rotating shaft 22 needs to be used in conjunction with the external capping head. After the capping head connected to the rotating shaft 22 grabs the bottle cap, if the bottle mouth and the bottle cap are not completely coaxial during capping, the return spring 8 can give a certain buffering force to the capping head 23, so that the bottle cap will not directly collide with the bottle mouth and cause damage, and there is a gap between the capping head 23 and the inner wall of the capping inner shaft 18 and the rotating shaft 22. Under the buffering effect of the return spring 8, the capping head 23 can also straighten the bottle cap with position error, so that the bottle cap can be pressed into the bottle mouth for capping at one time. During the capping process, the device does not have high requirements on the accuracy of the corresponding positions of the bottle cap and the bottle mouth, and can perform adaptive adjustment. Even when the bottle cap and the bottle mouth are not completely coaxial, the bottle cap can be quickly and smoothly pressed into the bottle mouth for capping, which is beneficial to improving the working efficiency of capping.
[0029] The top cover rod 2 is provided with a limiting boss 27, the lower end of the limiting boss 27 abuts against the upper end of the return spring 8, the lower end of the return spring 8 abuts against the upper end of the lower bushing 28, the inner shaft 18 of the rotary cover is provided with a mounting groove, the mounting groove is provided with a lower bushing 28, and the lower bushing 28 is sleeved on the top cover rod 2. The lower bushing 28 cooperates with the limiting boss 27 to limit the return spring 8 within the interval.
[0030] A clamping ring 29 is disposed at the upper end of the limiting boss 27 , and an upper bushing 30 is disposed inside the clamping ring 29 ; the lower end of the clamping ring 29 abuts against the upper end of the intermediate shaft 5 .
[0031] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.
Claims
1. A vertically coupled constant torque capping head assembly, characterized in that: The invention comprises an upper connecting member (1), a top cover rod (2), a cover rotating mechanism (3), a rebound guide member (4), an intermediate shaft (5), a magnetic force adjustment device (6) and a face end cover plate (7); the center of the upper end of the upper connecting member (1) is rotatably connected to the top cover rod (2) by installing a bearing group; the lower end of the top cover rod (2) is transmission-connected to the cover rotating mechanism (3); a reset spring (8) is attached to the outer periphery of the top cover rod (2); a rebound guide member (4) is adapted to be installed on the inner side of the lower end of the upper connecting member (1); an adjusting nut (9) is provided on the outer periphery of the rebound guide member (4); the lower end of the adjusting nut (9) is connected to the outer wall of the intermediate shaft (5) by a pressure spring (10); the lower part of the intermediate shaft (5) is connected to the magnetic force adjustment device (6); and the lower end of the magnetic force adjustment device (6) is provided with a face end cover plate (7).
2. A vertically coupled constant torque capping head assembly according to claim 1, characterized in that: The magnetic force adjustment device (6) comprises an adjustment outer sleeve (11), a ball (12), a connecting ring (13), an adjusting ring (14), a soft iron (15), a permanent magnetic connecting sleeve (16) and a screw cap inner sleeve (17); the lower part of the intermediate shaft (5) is rotatably connected to the adjustment outer sleeve (11); the inner wall of the adjustment outer sleeve (11) is provided with a spiral groove, and the ball (12) is adapted to be installed in the spiral groove; the lower end of the spiral groove is provided with a connecting ring (13) The lower end of the connecting ring (13) is fixedly connected to the surface end cover plate (7), and the upper end of the surface end cover plate (7) is connected to the lower end of the adjustment sleeve (11) through an adjustment ring (14); a soft iron (15) is provided on the inner side of the connecting ring (13), a permanent magnetic connecting sleeve (16) is provided on the inner side of the soft iron (15), a screw cover inner sleeve (17) is provided above the permanent magnetic connecting sleeve (16), and the screw cover inner sleeve (17) is attached to the upper end of the inner wall of the adjustment sleeve (11).
3. The vertically coupled constant torque capping head assembly according to claim 2, characterized in that: The rotary cover mechanism (3) comprises a rotary cover inner shaft (18), a deep groove ball bearing (19), a ball bearing (20), a bearing washer (21), a rotating shaft (22) and a capping head (23); the lower end of the intermediate shaft (5) is connected to the outer wall of the rotary cover inner shaft (18) through the deep groove ball bearing (19); the lower end of the rotary cover inner shaft (18) is provided with a ball bearing (20); a bearing washer (21) is sleeved between the ball bearing (20) and the deep groove ball bearing; the outer side of the bearing washer (21) is surrounded by a rotating shaft (22); the upper end of the rotating shaft (22) extends into the deep groove ball bearing (19); and the lower end of the top cover rod (2) is provided with a capping head (23).
4. The vertically coupled constant torque capping head assembly according to claim 3, characterized in that: The mounting bearing group comprises a bearing mounting member (24), a plane bearing (25) and a connecting shaft (26); a bearing mounting member (24) is provided at the center of the upper end of the upper connecting member (1); a plane bearing (25) is adapted to be installed in the bearing mounting member (24); the upper end of the plane bearing (25) is rotatably connected to the connecting shaft (26); and the lower end of the plane bearing (25) is rotatably connected to the upper end of the top cover rod (2).
5. A vertically coupled constant torque capping head assembly according to claim 3 or 4, characterized in that: The top cover rod (2) is provided with a limiting boss (27), the lower end of the limiting boss (27) is abutted against the upper end of a return spring (8), the lower end of the return spring (8) is abutted against the upper end of a lower bushing (28), and the lower bushing (28) is sleeved on the top cover rod (2).
6. The vertically coupled constant torque capping head assembly according to claim 5, characterized in that: A clamping ring (29) is provided at the upper end of the limiting boss (27), and an upper bushing (30) is provided inside the clamping ring (29); the lower end of the clamping ring (29) abuts against the upper end of the intermediate shaft (5).
7. The vertically coupled constant torque capping head assembly according to claim 6, characterized in that: Guide key strips (31) are provided on both sides of the intermediate shaft (5).
8. The vertically coupled constant torque capping head assembly according to claim 5, characterized in that: The inner shaft (18) of the rotary cover is provided with a mounting groove, and a lower bushing (28) is provided in the mounting groove.