A centering structure of a capping machine
Patent Information
- Application Number
- CN202521924955.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-08
AI Technical Summary
但是该结构由于对中杆的上段设置螺纹段通过旋转对中杆装入封盖头的底部，在封盖头在最低位置时，对中杆的下段刚好在卡瓶板与上行板之间，此时无法旋转对中杆进行拆卸，因此需要封盖头在最高位置时候，使对中杆的下段在卡瓶板与上行板的上方，才可以进行对中杆的拆卸，这极大影响了封盖的便捷性和时效性
[0011]本实用新型所述封盖机的对中结构，通过螺纹套的上段螺纹套插入封盖头底部中心孔内，在下段螺纹套座的扳手口上通过扳手将外螺纹拧紧在封盖头内，此时，螺纹套的台阶面低紧在封盖头底部，然后，对中杆的上段通过螺纹套的套孔伸入至封盖头底部中心孔内，并在锁孔内装入锁件，将对中杆卡紧在螺纹套上端面，从而可以对封盖头和卡瓶板进行同轴对中校正，需要拆卸对中杆时，只需要将锁件从锁孔内取出，对中杆则可从螺纹套上取下，然后拧松螺纹套即可拆卸完螺纹套，由于对中杆无需旋转，从而避免了卡瓶板和上行板产生的干涉，因此，封盖头处在最低位置还是最高位置时，均可方便拆卸对中杆，从而提升了封盖的便捷性和时效性。
Smart Images
Figure CN224900832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capping machines, and in particular to a centering structure for a capping machine. Background Technology
[0002] In liquid packaging machinery, the capping head of the capping machine is separate from the bottle conveying and fixing device. A crucial component during capping is the bottle clamping plate, whose dimensions are defined according to the bottle neck specifications. After the entire capping machine is assembled, the bottle clamping plate is attached according to the bottle specifications before capping can begin. The coaxial alignment accuracy between the capping head and the bottle clamping plate directly affects the capping yield. Regardless of the machine's size, there will always be some error in the coaxial alignment between the direct assembly of the bottle clamping plate and the capping head. When the machining precision and cumulative assembly precision of all parts of the capping machine are high, the coaxial alignment accuracy between the bottle clamping plate and the capping head will be excellent, allowing for direct assembly of the bottle clamping plate without the need for auxiliary adjustments. However, this leads to increased costs. Currently, to maintain a certain level of precision, auxiliary components are needed to correct the alignment of the assembled capping head and bottle clamping plate.
[0003] Currently, most capping machines use a centering rod mounted at the bottom of the capping head to align the capping head and the bottle clamping plate coaxially. After alignment, the centering rod is removed. A capping head can be inserted into the bottom of the capping head. As the capping head moves, the capping head covers the cap and presses it against the bottle neck for sealing. Its advantage is that the centering rod can be designed to fit different bottle shapes, resulting in fewer parts. However, this structure has a threaded section on the upper part of the centering rod. When the capping head is at its lowest position, the lower part of the centering rod is positioned between the bottle clamping plate and the upper plate, making it impossible to rotate and remove the rod. Therefore, the capping head must be at its highest position, with the lower part of the centering rod above the bottle clamping plate and the upper plate, to remove the rod. This significantly impacts the convenience and timeliness of the capping process. Utility Model Content
[0004] The purpose of this invention is to provide a centering structure for a capping machine that allows for easy disassembly of the centering rod, thereby improving the convenience and timeliness of capping.
[0005] The centering structure of the capping machine of this utility model includes a centering rod and a threaded sleeve. A locking hole is provided in the upper section of the centering rod. The threaded sleeve includes an upper threaded sleeve with external threads and a lower threaded sleeve seat with a wrench opening. The outer diameter of the lower threaded sleeve seat is slightly larger than the outer diameter of the upper threaded sleeve, and a stepped surface is formed between the lower threaded sleeve seat and the upper threaded sleeve. The upper threaded sleeve is inserted into the bottom center hole of the capping head and tightened inside the capping head. The stepped surface is tightened at the bottom of the capping head so that the lower threaded sleeve seat is located below the bottom of the capping head. The threaded sleeve has a sleeve hole for the upper section of the centering rod to extend into the bottom center hole of the capping head. After the upper section of the centering rod extends into the bottom center hole of the capping head from the sleeve hole, a detachable locking element is installed in the locking hole to lock the centering rod on the upper end face of the threaded sleeve.
[0006] As a preferred embodiment of this utility model, after the upper section of the centering rod extends from the sleeve hole to the bottom center hole of the cap head, the bottom center hole of the cap head reserves a gap at the top of the upper section of the centering rod for lifting the centering rod.
[0007] As a preferred embodiment of this utility model, the upper end face of the threaded sleeve is provided with a groove that allows the locking element to engage under the weight of the centering rod.
[0008] As a preferred embodiment of this utility model, two lock holes are symmetrically arranged on the upper section of the centering rod, two locking parts are arranged corresponding to the two lock holes, and two grooves corresponding to the two locking parts are symmetrically arranged on the upper end face of the threaded sleeve.
[0009] As a preferred embodiment of this utility model, the lock hole is a screw hole, the locking element is a screw, and after the screw is screwed into the screw hole, a locking section is reserved to be locked onto the upper end face of the threaded sleeve.
[0010] As a preferred embodiment of this utility model, the outer diameter of the upper section of the centering rod is slightly smaller than the outer diameter of the lower section, and a relative centering rod step surface is formed between the upper and lower sections of the centering rod.
[0011] The centering structure of the capping machine described in this utility model involves inserting the upper section of the threaded sleeve into the center hole at the bottom of the capping head. The external thread is then tightened into the capping head using a wrench on the wrench socket of the lower section of the threaded sleeve. At this point, the stepped surface of the threaded sleeve is tightly pressed against the bottom of the capping head. Then, the upper section of the centering rod extends through the sleeve hole of the threaded sleeve into the center hole at the bottom of the capping head, and a locking element is installed in the locking hole to clamp the centering rod onto the upper end face of the threaded sleeve. This allows for coaxial alignment and correction of the capping head and the bottle clamping plate. When the centering rod needs to be disassembled, simply remove the locking element from the locking hole, and the centering rod can be removed from the threaded sleeve. Loosening the threaded sleeve completes the disassembly. Since the centering rod does not require rotation, interference between the bottle clamping plate and the upper plate is avoided. Therefore, the centering rod can be easily disassembled whether the capping head is in its lowest or highest position, thus improving the convenience and timeliness of capping. Attached Figure Description
[0012] Figure 1 This is a top view of the capping machine; Figure 2 for Figure 1 Sectional view of AA; Figure 3 for Figure 2 A schematic diagram showing the centering rod installed in the center hole at the bottom of the cap head; Figure 4 This is the main view of the centering rod; Figure 5 This is the main view of the threaded sleeve; Figure 6 This is a top view of the threaded sleeve. Detailed Implementation
[0013] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0014] In this utility model, it should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0015] A centering structure for a capping machine, such as Figure 1 - Figure 6 As shown, it includes a centering rod 1 and a threaded sleeve 2. A locking hole 3 is provided in the upper section of the centering rod. The threaded sleeve 2 includes an upper threaded sleeve 21 with external threads 4 and a lower threaded sleeve seat 22 with a wrench mouth 5. The outer diameter of the lower threaded sleeve seat is slightly larger than the outer diameter of the upper threaded sleeve. A stepped surface 6 is formed between the lower threaded sleeve seat and the upper threaded sleeve. The upper threaded sleeve is inserted into the bottom center hole of the cap head and tightened inside the cap head. The stepped surface is tightened at the bottom of the cap head so that the lower threaded sleeve seat is located below the bottom of the cap head. The threaded sleeve is provided with a sleeve hole 7 for the upper section of the centering rod to extend into the bottom center hole of the cap head. After the upper section of the centering rod extends into the bottom center hole of the cap head from the sleeve hole, a detachable locking piece 8 is installed in the locking hole to lock the centering rod on the upper end face of the threaded sleeve.
[0016] like Figure 1 - Figure 3As shown, the capping machine includes a bottle-holding plate 12 and an upper shaping plate 13. A centering rod is installed in the center hole at the bottom of the capping head to align the capping head 14 and the bottle-holding plate 12. The axis of the centering rod and the axis of the threaded sleeve's hole are coaxial with the axis of the center hole at the bottom of the capping head. The axis of the centering rod and the axis of the threaded sleeve's hole are also coaxial with the axis of the bottle-holding plate 12. After the upper section of the centering rod extends from the sleeve hole into the center hole at the bottom of the capping head, a gap 9 is reserved at the top of the upper section of the centering rod for lifting. When disassembling the centering rod, it can be lifted within the gap 9 in the center hole at the bottom of the capping head, and then the locking mechanism can be disassembled, further improving the ease of disassembling the centering rod.
[0017] In another embodiment, such as Figure 4 As shown, the outer diameter of the upper section of the centering rod is slightly smaller than that of the lower section, and a centering rod step surface 11 is formed between the upper and lower sections of the centering rod. When the centering rod is lifted, the centering rod step surface is loosely tightened on the bottom of the lower section threaded sleeve, or when the locking part is easy to disassemble, the centering rod step surface is directly loosely tightened on the bottom of the lower section threaded sleeve.
[0018] In another embodiment, such as Figure 6 As shown, the upper end face of the threaded sleeve is provided with a groove 10 that allows the locking element to engage under the weight of the centering rod. The locking element can be engaged by the groove on the upper end face of the threaded sleeve. When it is necessary to remove the centering rod, simply lift the centering rod to remove the locking element.
[0019] Furthermore, two grooves are symmetrically arranged on the upper end face of the threaded sleeve, and two locking holes are symmetrically arranged on the upper section of the centering rod. Two locking pieces are installed in the two locking holes and are engaged with the two grooves.
[0020] Furthermore, the lock hole is a screw hole, the lock element is a screw, and after the screw is screwed into the screw hole, a locking section is reserved to be locked onto the upper end face of the threaded sleeve, and the locking section is locked into the groove.
[0021] The above embodiments are only used to illustrate the detailed solution of this utility model. This utility model is not limited to the above detailed solution, that is, it does not mean that this utility model must rely on the above detailed solution to be implemented. Those skilled in the art should understand that any improvement to this utility model, equivalent substitution of the raw materials of this utility model product, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this utility model.
Claims
1. A centering structure for a capping machine, characterized in that, The device includes a centering rod (1) and a threaded sleeve (2). A locking hole (3) is provided in the upper section of the centering rod. The threaded sleeve (2) includes an upper threaded sleeve (21) with external threads (4) and a lower threaded sleeve seat (22) with a wrench opening (5). The outer diameter of the lower threaded sleeve seat is slightly larger than the outer diameter of the upper threaded sleeve. A stepped surface (6) is formed between the lower threaded sleeve seat and the upper threaded sleeve. The upper threaded sleeve is inserted into the bottom center hole of the cap head and tightened inside the cap head. The stepped surface is tightened at the bottom of the cap head so that the lower threaded sleeve seat is located below the bottom of the cap head. The threaded sleeve is provided with a sleeve hole (7) for the upper section of the centering rod to extend into the bottom center hole of the cap head. After the upper section of the centering rod extends into the bottom center hole of the cap head from the sleeve hole, a detachable locking piece (8) is installed in the locking hole to lock the centering rod on the upper end face of the threaded sleeve.
2. The centering structure of the capping machine according to claim 1, characterized in that, After the upper section of the centering rod extends from the sleeve hole to the bottom center hole of the cap head, the bottom center hole of the cap head leaves a gap at the top of the upper section of the centering rod for lifting the centering rod (9).
3. The centering structure of the capping machine according to claim 2, characterized in that, The upper end face of the threaded sleeve is provided with a groove (10) that allows the locking element to be engaged under the weight of the centering rod.
4. The centering structure of the capping machine according to claim 3, characterized in that, There are two lock holes symmetrically arranged on the upper section of the centering rod, two locking parts corresponding to the two lock holes, and two grooves corresponding to the two locking parts symmetrically arranged on the upper end face of the threaded sleeve.
5. The centering structure of the capping machine according to any one of claims 1-4, characterized in that, The lock hole is a screw hole, and the lock is a screw. After the screw is screwed into the screw hole, there is a retaining section that is locked onto the upper end face of the threaded sleeve.
6. The centering structure of the capping machine according to any one of claims 1-4, characterized in that, The outer diameter of the upper section of the centering rod is slightly smaller than that of the lower section, and a centering rod step surface (11) is formed between the upper and lower sections of the centering rod.