Transverse movement of a grab cap structure
By designing a transverse gripping capping structure, the problems of low capping efficiency and low reliability of capping machines are solved, achieving high-precision and low-cost capping operation and simplifying the equipment debugging process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN TANGONG MASCH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing capping machines suffer from low capping efficiency, low reliability, and complex debugging, leading to unstable production processes and high equipment costs.
It adopts a transverse grasping and capping structure, including a bracket, a swing drive, a swing arm, and a capping head. The transmission compensation component ensures that the capping head posture remains unchanged. Combined with the detection component, it achieves high-precision operation and has both cap picking and pre-capping functions. It is easy and quick to adjust.
It improves the accuracy and reliability of capping, reduces the difficulty and cost of equipment debugging, and achieves efficient and stable capping operation.
Smart Images
Figure CN224491595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machinery technology, and in particular to a transverse gripping and capping structure. Background Technology
[0002] A capping machine, also called a sealing machine, pressing machine, or locking machine, is a type of machinery used to tighten bottle caps onto the bottle body by rotating them. Generally, a fully automatic vacuum capping machine includes a cap-hanging structure, which typically consists of a cap-hanging head, a front sliding pressure block, a rear sliding pressure block, and left and right toothed silicone rubber grippers. Most of these mechanisms are adjustable, such as the cap-hanging angle, the height of the pressure block, and the angle and distance of the left and right toothed rubber grippers. However, too many adjustable mechanisms can make debugging difficult and affect the stability of cap-hanging quality during production, easily leading to problems such as missed caps or skewed caps, resulting in a low cap-hanging pass rate and poor vacuuming effect during subsequent capping. Furthermore, the cap-hanging structure requires a dedicated frame for support, increasing the equipment's manufacturing cost.
[0003] The technical problem to be solved by this utility model is: how to solve the problems of low capping efficiency, low reliability and complicated debugging of existing capping machines. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a transverse sliding gripping cap structure that is simple in structure, easy to debug, efficient and highly reliable.
[0005] The technical solution adopted by this utility model is as follows: a transverse grasping and capping structure, including a bracket, a swing drive component, a swing arm and a capping head respectively mounted on the bracket, one end of the swing arm is rotatably connected to the bracket, the output end of the swing drive component is connected to the end of the swing arm near the bracket, and is used to drive the swing arm to rotate relative to the bracket, the capping head is rotatably engaged with the other end of the swing arm, and the capping head is connected to the swing drive component through a transmission compensation component, the swing drive component and the transmission compensation component cooperate to make the capping head follow the movement of the swing arm while maintaining a constant posture.
[0006] The transverse gripping and capping structure of this application combines the functions of cap picking and pre-capping. The swing angle of the swing arm can be controlled by the swing drive to be suitable for bottles of different heights. Moreover, the swing drive can control the swing amplitude of the swing arm according to the position of cap picking and capping, so as to accurately control the capping head to pick up the cap and stably screw it into the bottle mouth. The equipment is easy and quick to adjust, and can achieve high consistency of operation after one adjustment. It has a small overall size, fast speed and good versatility, and has a significant cost advantage over the traditional cap hanging structure.
[0007] In some embodiments, the two ends of the swing arm are respectively provided with a drive shaft and a driven shaft. One end of the drive shaft is connected to the output end of the swing drive component, and the other end is rotatably connected to the bracket. The swing arm is fixedly connected to the drive shaft, the driven shaft is rotatably connected to the swing arm, the capping head is fixedly connected to the driven shaft, and the drive shaft and the driven shaft are connected through a transmission compensation component.
[0008] By adopting the above technical solution, the drive shaft and the driven shaft are connected by a transmission compensation component. When the swing drive drives the swing arm to swing, the transmission compensation component will provide a reverse compensation rotation to the capping head, so that the rotation amplitude of the capping head is equal in magnitude and opposite in direction to the rotation amplitude of the swing arm, and they will eventually cancel each other out, so that the posture of the capping head remains unchanged, ensuring the accuracy of the capping head's cap gripping and pre-capping actions.
[0009] In some embodiments, the transmission compensation assembly includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first synchronous pulley is fixedly sleeved on the outer surface of the drive shaft, the second synchronous pulley is fixedly sleeved on the outer surface of the driven shaft, and the synchronous belt connects the first synchronous pulley and the second synchronous pulley. The transmission ratio between the first synchronous pulley and the second synchronous pulley is 1:1.
[0010] By adopting the above technical solution, the transmission compensation of the capping head is achieved through the cooperation of the first synchronous pulley and the second synchronous pulley and the synchronous belt with a transmission ratio of 1:1, so that the posture of the capping head remains unchanged when it follows the swing arm.
[0011] In some embodiments, the transmission compensation assembly further includes a tensioning shaft and an adjusting member. One end of the tensioning shaft is slidably connected to the swing arm, and the other end abuts against the timing belt. The adjusting member is threadedly connected to the bracket and is also connected to the tensioning shaft.
[0012] By adopting the above technical solution, the tensioning shaft and the adjusting component can be matched to adjust the tension of the synchronous belt according to actual needs, so as to ensure the transmission accuracy of the synchronous belt.
[0013] In some embodiments, a roller is fitted on the outer surface of the end of the tensioning shaft away from the swing arm, and the outer surface of the roller abuts against the timing belt.
[0014] By adopting the above technical solution, the friction between the timing belt and the tensioning shaft can be reduced by setting rollers on the tensioning shaft, thereby protecting the timing belt.
[0015] In some embodiments, the transmission compensation assembly includes a first gear and a second gear. The first gear is fixedly sleeved on the outer surface of the drive shaft, and the second gear is fixedly sleeved on the outer surface of the driven shaft. The first gear and the second gear mesh, and the transmission ratio between the first gear and the second gear is 1:1.
[0016] By adopting the above technical solution, the transmission compensation of the capping head is achieved through the cooperation of the first gear and the second gear with a transmission ratio of 1:1, so that the posture of the capping head remains unchanged when it follows the swing arm.
[0017] In some embodiments, the transmission compensation assembly further includes an idler wheel, which is rotatably connected to the swing arm and meshes with the first gear and the second gear.
[0018] By adopting the above technical solution, the idler wheel can reduce the diameter of the first gear and the second gear, making the structure more compact.
[0019] In some embodiments, a detection assembly is also included, comprising a detection plate and a plurality of detection sensors. The detection plate is mounted on the drive shaft, and the detection sensors are spaced apart along the rotation trajectory of the detection plate. The detection sensors are signal connected to the oscillating drive and the capping head.
[0020] Using the above technical solution, the detection plate and detection sensor can work together to detect the position of the swing arm in real time and accurately, and the transverse shifting gripping cap structure can achieve high-precision operation.
[0021] In some implementations, a buffer corresponding to the swing arm is mounted on the support.
[0022] By adopting the above technical solution, the buffer can reduce the vibration when the swing arm stops swinging, making the capping head more stable and improving the accuracy of grasping the cap.
[0023] In some embodiments, the capping head includes a cap gripper, a cap gripping power component, and a capping power component. The cap gripper and the capping power component are respectively connected to opposite ends of the cap gripping power component. The cap gripping power component is used to drive the cap gripper to open and close, and the capping power component is used to drive the cap gripper to rotate. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the transverse shifting gripping cap structure of a preferred embodiment of the present invention;
[0025] Figure 2 for Figure 1 The diagram shows another perspective of the transverse sliding cap structure, in which the protective cover is not shown;
[0026] Figure 3 for Figure 2 The diagram shows the structure of the transverse sliding capping structure after the support is removed.
[0027] In the diagram: 100, transverse gripping capping structure; 10, bracket; 11, buffer; 20, swing drive component; 30, swing arm; 31, drive shaft; 32, driven shaft; 40, capping head; 41, gripping claw; 42, gripping power component; 43, capping power component; 50, transmission compensation assembly; 51, first synchronous pulley; 52, second synchronous pulley; 53, synchronous belt; 54, tensioning shaft; 55, adjusting component; 56, roller; 57, protective cover; 60, detection assembly; 61, detection plate; 62, detection sensor. Detailed Implementation
[0028] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0031] Please see Figures 1 to 3A preferred embodiment of the present invention, a transverse grasping and capping structure 100, includes a bracket 10, a swing drive 20, a swing arm 30, and a capping head 40 respectively mounted on the bracket 10. One end of the swing arm 30 is rotatably connected to the bracket 10. The output end of the swing drive 20 is connected to the end of the swing arm 30 near the bracket 10 to drive the swing arm 30 to rotate relative to the bracket 10. The capping head 40 is rotatably engaged with the other end of the swing arm 30. The capping head 40 and the swing drive 20 are connected through a transmission compensation component 50. The swing drive 20 and the transmission compensation component 50 cooperate to make the capping head 40 move with the swing arm 30 while maintaining a constant posture. The transverse gripping and capping structure 100 of this application has the functions of both cap picking and pre-capping. The swing angle of the swing arm 30 can be controlled by the swing drive component 20 to be suitable for bottles of different heights. Moreover, the swing drive component 20 can control the swing amplitude of the swing arm 30 according to the position of cap picking and capping, so as to accurately control the capping head 40 to pick up the cap and stably screw it into the bottle mouth. The equipment is easy and quick to adjust, and can achieve high consistency of operation after one adjustment. It has the characteristics of small overall size, fast speed and good versatility, and has a significant cost advantage over the traditional cap hanging structure.
[0032] In this embodiment, the swing drive 20 is a servo motor with a gearbox.
[0033] In this embodiment, as Figure 3 As shown, the swing arm 30 has a drive shaft 31 and a driven shaft 32 at its two ends. One end of the drive shaft 31 is connected to the output end of the swing drive 20, and the other end is rotatably connected to the bracket 10. The swing arm 30 is fixedly connected to the drive shaft 31, and the driven shaft 32 is rotatably connected to the swing arm 30. The capping head 40 is fixedly connected to the driven shaft 32. The drive shaft 31 and the driven shaft 32 are connected by a transmission compensation assembly 50. By connecting the drive shaft 31 and the driven shaft 32 through the transmission compensation assembly 50, when the swing drive 20 drives the swing arm 30 to swing, the transmission compensation assembly 50 provides a reverse compensation rotation to the capping head 40, so that the rotation amplitude of the capping head 40 is equal in magnitude and opposite in direction to the rotation amplitude of the swing arm 30, ultimately canceling each other out. This keeps the posture of the capping head 40 unchanged, ensuring the accuracy of the capping head 40's cap-grabbing and pre-capping actions.
[0034] Furthermore, a first bearing that cooperates with the drive shaft 31 is provided on the bracket 10, and a second bearing that cooperates with the driven shaft 32 is provided on the swing arm 30. By providing the first bearing and the second bearing, the resistance when the drive shaft 31 and the transmission shaft rotate can be reduced, making the rotation of the drive shaft 31 and the transmission shaft smoother and quieter.
[0035] In this embodiment, as Figure 2 and Figure 3As shown, the transmission compensation assembly 50 includes a first synchronous pulley 51, a second synchronous pulley 52, and a synchronous belt 53. The first synchronous pulley 51 is fixedly sleeved on the outer surface of the drive shaft 31, and the second synchronous pulley 52 is fixedly sleeved on the outer surface of the driven shaft 32. The synchronous belt 53 connects the first synchronous pulley 51 and the second synchronous pulley 52, and the transmission ratio between the first synchronous pulley 51 and the second synchronous pulley 52 is 1:1. Through the cooperation of the first synchronous pulley 51 and the second synchronous pulley 52 with a transmission ratio of 1:1 and the synchronous belt 53, the transmission compensation of the capping head 40 is realized, so that the posture of the capping head 40 remains unchanged when it swings with the swing arm 30.
[0036] Furthermore, the transmission compensation assembly 50 also includes a tensioning shaft 54 and an adjusting member 55. One end of the tensioning shaft 54 is slidably connected to the swing arm 30, and the other end abuts against the synchronous belt 53. The adjusting member 55 is threadedly connected to the bracket 10 and is also connected to the tensioning shaft 54. The tensioning shaft 54 and the adjusting member 55 work together to adjust the tension of the synchronous belt 53 according to actual needs, ensuring the transmission accuracy of the synchronous belt 53.
[0037] Specifically, a sliding groove is provided on the swing arm 30 for the tension shaft 54 to slide. The tension shaft 54 passes through the sliding groove and slides with the swing arm 30. In order to prevent the tension shaft 54 from coming out of the sliding groove, the diameter of the end of the tension shaft 54 that passes through the sliding groove is smaller than the width of the sliding groove, and the diameter of the end that is closer to the synchronous belt 53 is larger than the width of the sliding groove. In addition, an anti-disengagement component is provided at the end of the tension shaft 54 that is away from the synchronous belt 53. The anti-disengagement component can be one of a nut, a pin, etc.
[0038] Furthermore, a roller 56 is fitted onto the outer surface of the end of the tensioning shaft 54 away from the rocker arm 30, and the outer surface of the roller 56 abuts against the timing belt 53. By providing the roller 56 on the tensioning shaft 54, the friction between the timing belt 53 and the tensioning shaft 54 can be reduced, thereby protecting the timing belt 53.
[0039] Optionally, to ensure safety and prevent debris from affecting the normal operation of the transmission compensation assembly 50, a protective cover 57 is provided on the surface of the synchronous belt 53, and the protective cover 57 is detachably connected to the swing arm 30 by fasteners.
[0040] In another embodiment, the transmission compensation component 50 includes a first gear and a second gear. The first gear is fixedly sleeved on the outer surface of the drive shaft 31, and the second gear is fixedly sleeved on the outer surface of the driven shaft 32. The first gear and the second gear mesh, and the transmission ratio between the first gear and the second gear is 1:1. Through the engagement of the first gear and the second gear with a transmission ratio of 1:1, the transmission compensation of the capping head 40 is achieved, so that the posture of the capping head 40 remains unchanged when it swings with the swing arm 30.
[0041] Furthermore, the transmission compensation assembly 50 also includes an idler wheel, which is rotatably connected to the rocker arm 30 and meshes with the first gear and the second gear. The idler wheel can reduce the diameter of the first gear and the second gear, making the structure more compact.
[0042] Preferably, the transverse gripping and rotating structure of this application further includes a detection component 60, which includes a detection plate 61 and a plurality of detection sensors 62. The detection plate 61 is mounted on the drive shaft 31, and the detection sensors 62 are spaced apart along the rotation trajectory of the detection plate 61. The detection sensors 62 are signal connected to the swing drive 20 and the capping head 40. The detection plate 61 and the detection sensors 62 work together to accurately detect the position of the swing arm 30 in real time, enabling the transverse gripping and rotating capping structure 100 to achieve high-precision operation.
[0043] The detection principle of the detection component 60 is as follows: a protrusion is set on the detection plate 61. When the detection plate 61 rotates with the drive shaft 31, the protrusion will also rotate. When the protrusion sweeps past a detection sensor 62, the detection sensor 62 transmits a signal to the controller. The controller can then identify the rotation angle of the detection plate 61, thereby identifying the current position of the swing arm 30 and the capping head 40.
[0044] To reduce the impact of the swing arm 30 when it stops swinging and to make the swing arm 30 stop more smoothly, a buffer 11 corresponding to the swing arm 30 is installed on the bracket 10. The buffer 11 can reduce the vibration when the swing arm 30 stops swinging, making the capping head 40 more stable and improving the accuracy of gripping the cap. Optionally, the buffer 11 is a pneumatic or hydraulic buffer.
[0045] Specifically, the capping head 40 includes a cap gripper 41, a cap gripping power component 42, and a capping power component 43. The cap gripper 41 and the capping power component 43 are respectively connected to the opposite ends of the cap gripping power component 42. The cap gripping power component 42 is used to drive the cap gripper 41 to open and close, and the capping power component 43 is used to drive the cap gripper 41 to rotate.
[0046] Optionally, the cap-grabbing power component 42 is a pneumatic or hydraulic cylinder, and the cap-screwing power component 43 is a servo motor.
[0047] When the transverse gripping and capping structure 100 of this application is running, after the cap feeding mechanism delivers the cap to the designated position, the capping head 40 stops above the cap and waits to grip it. After receiving the bottle arrival signal, the cap feeding cylinder lifts the cap, and the capping head 40 clamps the cap. The swing drive 20 drives the swing arm 30 to swing at a certain angle, while the capping head 40 always remains vertically downward and moves with the swing arm 30. When the swing drive 20 reaches a certain pulse, the capping power component 43 of the capping head 40 starts, and at the same time, the swing drive 20 drives the swing arm 30 to continue to descend, so that the bottle cap contacts the bottle. Then the capping head 40 screws the bottle cap into the bottle mouth, finally realizing the gripping and capping process.
[0048] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A transverse sliding gripping cap structure, characterized in that, The device includes a bracket (10), a swing drive (20), a swing arm (30), and a capping head (40) respectively mounted on the bracket (10). One end of the swing arm (30) is rotatably connected to the bracket (10). The output end of the swing drive (20) is connected to the end of the swing arm (30) near the bracket (10) to drive the swing arm (30) to rotate relative to the bracket (10). The capping head (40) is rotatably engaged with the other end of the swing arm (30). The capping head (40) is connected to the swing drive (20) through a transmission compensation component (50). The swing drive (20) and the transmission compensation component (50) work together to make the capping head (40) move with the swing arm (30) while maintaining its posture.
2. The transverse shifting gripping cap structure according to claim 1, characterized in that, The swing arm (30) is provided with a drive shaft (31) and a driven shaft (32) at its two ends respectively. One end of the drive shaft (31) is connected to the output end of the swing drive (20), and the other end is rotatably connected to the bracket (10). The swing arm (30) is fixedly connected to the drive shaft (31), and the driven shaft (32) is rotatably connected to the swing arm (30). The capping head (40) is fixedly connected to the driven shaft (32). The drive shaft (31) and the driven shaft (32) are connected through a transmission compensation assembly (50).
3. The transverse shifting gripping cap structure according to claim 2, characterized in that, The transmission compensation assembly (50) includes a first synchronous pulley (51), a second synchronous pulley (52), and a synchronous belt (53). The first synchronous pulley (51) is fixedly sleeved on the outer surface of the drive shaft (31), and the second synchronous pulley (52) is fixedly sleeved on the outer surface of the driven shaft (32). The synchronous belt (53) connects the first synchronous pulley (51) and the second synchronous pulley (52). The transmission ratio between the first synchronous pulley (51) and the second synchronous pulley (52) is 1:
1.
4. The transverse shifting gripping cap structure according to claim 3, characterized in that, The transmission compensation assembly (50) further includes a tensioning shaft (54) and an adjusting member (55). One end of the tensioning shaft (54) is slidably connected to the swing arm (30), and the other end abuts against the timing belt (53). The adjusting member (55) is threadedly connected to the bracket (10), and the adjusting member (55) is connected to the tensioning shaft (54).
5. The transverse shifting gripping cap structure according to claim 4, characterized in that, The outer surface of the end of the tensioning shaft (54) away from the swing arm (30) is fitted with a roller (56), and the outer surface of the roller (56) abuts against the timing belt (53).
6. The transverse shifting gripping cap structure according to claim 2, characterized in that, The transmission compensation component (50) includes a first gear and a second gear. The first gear is fixedly sleeved on the outer surface of the drive shaft (31), and the second gear is fixedly sleeved on the outer surface of the driven shaft (32). The first gear and the second gear mesh, and the transmission ratio between the first gear and the second gear is 1:
1.
7. The transverse shifting gripping cap structure according to claim 6, characterized in that, The transmission compensation assembly (50) also includes an idler wheel, which is rotatably connected to the swing arm (30) and meshes with the first gear and the second gear.
8. The transverse shifting gripping cap structure according to claim 2, characterized in that, It also includes a detection component (60), which includes a detection plate (61) and a plurality of detection sensors (62). The detection plate (61) is mounted on the drive shaft (31), and each of the detection sensors (62) is spaced apart along the rotation trajectory of the detection plate (61). The detection sensors (62) are signal connected to the swing drive (20) and the capping head (40).
9. The transverse shifting gripping cap structure according to claim 1, characterized in that, The bracket (10) is equipped with a buffer (11) corresponding to the swing arm (30).
10. The transverse shifting gripping cap structure according to claim 1, characterized in that, The capping head (40) includes a cap gripper (41), a cap gripping power component (42), and a capping power component (43). The cap gripper (41) and the capping power component (43) are respectively connected to the opposite ends of the cap gripping power component (42). The cap gripping power component (42) is used to drive the cap gripper (41) to open and close, and the capping power component (43) is used to drive the cap gripper (41) to rotate.