CN217173233U

CN217173233U - Sealing machine

Info

Publication number: CN217173233U
Application number: CN202221047622.6U
Authority: CN
Inventors: 沙宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-08-12
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a sealing machine, include: a frame; the bottle pushing wheel is arranged on the rack through a rotating shaft and is provided with a given number of notches for positioning bottles; the driven disc is arranged at the lower end or the middle lower part of the rotating shaft, and driven bodies which correspond to the notches one to one are arranged on the driven disc; a lifting shaft; the sealing assembly is arranged on the lifting shaft and is positioned above one side of the bottle poking wheel, one sealing machine head is provided, and the sealing machine head is in positive alignment with the notch running right below the sealing machine head; the double cam mechanism is provided with a cam shaft, a lifting cam and a rotating cam, wherein the lifting cam is a disc cam and takes the lifting shaft as a driven part, the rotating cam is a cylindrical cam so as to be sequentially matched with the driven part, the lifting shaft is lifted once when the cam shaft rotates for one circle, and the driving disc wheel steps by one notch. Based on the utility model discloses under the condition that has adopted single head, still can guarantee to seal the operation to the bottle that targets in place.

Description

Sealing machine

Technical Field

The utility model relates to a sealing machine.

Background

In a filling line, for example beverage bottles, it is necessary to transfer them from a conveyor line to, for example, a rotary assembly, where the filling, capping, sealing, etc. operations are performed. In a small number of implementations, filling, capping, and sealing can be accomplished on one rotary assembly, while in most implementations, filling, capping, and sealing need be accomplished on three rotary assemblies, but whatever configuration, e.g., the sealing assembly, needs to be synchronized with the rotary assemblies to achieve accurate sealing operations.

Note: the swivel assembly is used herein exclusively to denote an assembly for circumferentially positioning the bottle and carrying it for swiveling about a swivel assembly axis.

As previously mentioned, in many applications, such as filling and sealing, it is often necessary to complete the process on two rotary assemblies, which are matched with separate filling and sealing machines, etc., during which the bottles on the conveyor line need to enter and exit the corresponding rotary assembly multiple times, and it is necessary to ensure the synchronization of the rotary assembly with, for example, the sealing assembly.

In most implementations, the synchronization is usually achieved by mounting the closure assembly on the same shaft as the turret assembly, which has an upper turret and the turret assembly has a lower turret, wherein the lower turret has, for example, arcuate notches, each of which locates and carries a bottle in rotation. The upper rotary disc is provided with sealing machine heads in one-to-one correspondence with the notches, namely the number of the sealing machine heads is equal to that of the notches. The sealing machine head is the core of the sealing machine, the cost ratio is relatively large, when the number of the sealing machine heads is relatively large, the overall cost is relatively high, the overall inertia of the rotating part is relatively large, and the stability is relatively poor.

Generally, the rotary disc has 12, 24 or 36 notches, but other configurations are possible, if the sealing machine adopts a single head (single sealing machine head), only one sealing machine head is provided, and the single head cannot rotate along with a certain notch any more.

Disclosure of Invention

In view of this, the present invention is directed to a sealing machine capable of ensuring sealing operation of a bottle in place even when a single head is used.

In an embodiment of the present invention, there is provided a sealing machine, the basic structure of which includes:

a frame;

the bottle pushing wheel is arranged on the rack through a vertical rotating shaft and is provided with a given number of notches for positioning bottles;

the driven disc is arranged at the lower end or the middle lower part of the rotating shaft, and driven bodies which correspond to the notches one to one are arranged on the driven disc;

the lifting shaft and the rotating shaft are arranged on the rack in parallel;

the sealing assembly is arranged on the lifting shaft and is positioned above one side of the bottle poking wheel, one sealing machine head is provided, and the sealing machine head is in positive alignment with the notch running right below the sealing machine head;

the double-cam mechanism is provided with a cam shaft, a lifting cam and a rotating cam, wherein the lifting cam and the rotating cam are installed on the cam shaft, the lifting cam is a disc cam and takes the lifting shaft as a driven part, the rotating cam is a cylindrical cam and is sequentially matched with the driven part, so that the lifting shaft is lifted once every time the cam shaft rotates for one circle, and the driving disc wheel is stepped by one notch.

Optionally, the rotating cam provides at least two idle stroke segments for the closing head to press on or off the bottle mouth based on the lifting.

Optionally, the frame provides a table, the driven disc being located below the table;

accordingly, the double cam mechanism is located below the table.

Optionally, the driven bodies are uniformly distributed in the circumferential direction of the driven disc, and the driven bodies include:

the axis of the roller shaft is vertically assembled on the driven disc with the disc surface of the driven disc, and the shaft head extends downwards;

and the roller is arranged on the shaft head and is matched with the cam groove of the rotating cam after being in place.

Optionally, one side of the lower end of the lifting shaft is provided with an extension portion extending downward, and the end of the extension portion is provided with a structural body in sliding fit or rolling fit with the end face cam groove of the lifting cam.

Optionally, the profile surface of the lift cam is a sliding or rolling fit with the lower end of the lift shaft.

Optionally, the axial position of the closure assembly on the lift shaft is adjustable.

Optionally, the closure assembly comprises a mount movably mounted on the lift shaft and adapted to:

the first structure: the seat frame is arranged on a female seat, and a lifting screw matched with the female seat is provided to adjust the position of the female seat on a lifting shaft; or

A second structure: the lifting shaft is provided with a threaded hole downwards from the center of the upper end, a lifting screw rod matched with the threaded hole is provided, and the sealing assembly is supported on a tray of the lifting screw rod through the seat frame and is limited by the lifting shaft in the circumferential direction.

Optionally, the mount has a bushing to form a bushing fit with the lift shaft.

Optionally, a shaping component for shaping the bottle cap is further arranged on the sealing assembly;

corresponding to the rotation direction of the bottle poking wheel, the shaping part is positioned at the rear side of the sealing machine head, and the notch aligned by the shaping part is adjacent to the notch corresponding to the sealing machine head.

In the embodiment of the present invention, the same camshaft is used for synchronization, and the cam has the advantage that the very complex motion pattern of the driven member can be realized by setting the cam curve, and meanwhile, as the common knowledge in the field, the curve design of the cam is obvious under the condition that the expected motion pattern is determined. Furthermore, two cams arranged on the same cam shaft can realize accurate synchronization based on a rigid cam shaft, one of the two cams is a lifting cam used for controlling the lifting of the sealing machine head, and the other cam is a rotating cam used for controlling the rotation of the bottle poking wheel, so that in one rotation period of the cam shaft, by means of the attributes of the cams, the sequential sealing of the bottles transferred by a single sealing machine head is realized.

Drawings

Fig. 1 is a schematic view of a main view of a sealing machine in an embodiment.

FIG. 2 is a schematic top view (simplified) of a capper according to one embodiment.

Fig. 3 is a schematic structural view of an embodiment of the lifting cam.

In the figure: 1. the automatic bottle opener comprises a driven disc, 2. a rotating shaft, 3. a shaft sleeve, 4. a rack, 5. a bottle pulling wheel, 6. a bottle, 7. a sealing machine head, 8. a driven belt wheel, 9. a seat frame, 10. a sleeve, 11. a lifting screw rod, 12. a driving belt wheel, 13. a sealing motor, 14. a lifting shaft, 15. a lifting shaft sleeve, 16. a shaft sleeve seat, 17. a roller, 18. a cam motor, 19. a lifting cam, 20. a bearing seat, 21. a bearing, 22. a cam shaft, 23. a rotating cam, 24. a roller, 25. a thrust bearing, 26. an end face cam groove and 27. a cam shaft hole.

Detailed Description

As a mechanical common sense, a cam refers to a rotating or sliding member of a machine (such as a wheel or a projecting portion of a wheel) that imparts motion to a roller that moves against its edge or a follower that moves freely on a grooved surface, which follower may be a needle bar. The cam follower can be designed to meet almost any input-output relationship over its range of motion. For example, a simple lifting movement, in which the follower does not move up and down when it engages the base circle, for example, when the cam curve changes, for example, the radial dimension becomes larger with respect to the base circle, the follower is lifted, and conversely, the follower is lowered. In general, any desired movement can be achieved by an appropriate cam profile (cam curve), and in general, a cam curve is known when the desired movement is determined.

In the embodiment of the present invention, the key point is that two cams are installed on one shaft, that is, a rotating cam 23 and a lifting cam 19 are installed on a cam shaft 22, the former is used for pushing the bottle-setting wheel 5 to rotate, and the latter is used for pushing the sealing assembly to lift.

In view of the above, the improvement of the present invention is to use a single capper head 7, and in this condition, the single capper head 7 is not matched with the bottle-setting wheel 5. Therefore, the embodiment of the present invention only briefly describes other parts of the sealing machine, and the sealing machine is simplified in fig. 1 to 3, but the present invention does not affect the accurate expression of the concept of the present invention.

As a basic configuration of the capper, the frame 4 is a base body on which other components are mounted, and the elevating portion and the rotating portion are attached to the frame 4 and are portions where the function of the capper is realized.

The position of the frame 4 indicated by the reference number in fig. 1 is the table body part of the frame 4, and it should be understood that, in the mechanical field, the frame 4 is used as a relatively stationary part of the mechanism, and also refers to the main stationary part of the equipment, including, for example, the bearing block 20, the lifting sleeve 15, and other parts which are not mentioned and are directly or indirectly connected with the table body part and are in a relatively stationary state, as shown in fig. 1.

Regarding the main structure of the rotating part, such as the bottle-setting wheel 5 shown in fig. 2, in view of the present invention, the improvement of the bottle-setting wheel 5 itself is not involved, therefore, the rotary disc capable of conveying the bottles 6 on the rotary assembly can be used, and the bottle-setting wheel 5 needs not to be modified because of the single sealing machine head 7, of course, the appearance of the novel bottle-setting wheel 5 in the future is not excluded, and obviously, the bottle-setting part capable of conveying the bottles 6 on the rotary disc can be regarded as the bottle-setting wheel 5 as long as the bottle-setting part can convey the bottles 6 on the rotary disc without making any special limitation on the bottle-setting wheel 5.

The bottle-pulling wheel 5 has a rotational degree of freedom, i.e. it rotates around the axis of the rotating shaft 2, and the bottle-pulling wheel 5 is generally a toothed structure, and a plurality of teeth are uniformly distributed on the periphery of the bottle-pulling wheel 5, and between the teeth, i.e. tooth grooves, also called notches, are used for positioning and pulling the bottles 6, in some implementations, a disk-shaped body (not shown in the figure) which is used for supporting the bottles 6 and rotates together with the bottle-pulling wheel 5 can also be used for positioning the bottles 6, but generally, the whole understanding is also made, i.e. the bottle-pulling wheel 5 can be regarded as being used for positioning, and no matter the bottle-pulling wheel 5 is used for main positioning or auxiliary positioning.

The number of notches is generally an integer multiple of 12, although other configurations of the number of notches are not excluded, and it is understood that the number of notches is independent of whether a single capper head 5 is used.

In fig. 1, in order to increase the dynamic stiffness of the rotating shaft 2, the shaft sleeve 3 is sleeved outside the rotating shaft 2, the shaft sleeve 3 is fixed on a frame through bolts or screws, for example, and the rotating shaft 2 is independently provided with a bearing group for supporting the rotating shaft, wherein the bearing group can comprise a part positioned in the shaft sleeve 3.

The bearing set comprises at least a thrust bearing 25 providing axial support, in fig. 1 the thrust bearing 25 is fitted to the lower end of the rotating shaft 2, the fitted thrust bearing seat also forming part of the frame 4.

As a configuration of the rotating portion, it is used as a portion of power introduction, i.e., the driven plate 1, which is used to cooperate with the rotating cam 23 of the two cams, and as a follower of the rotating cam 23, the rotating cam 23 in fig. 1 is a cylindrical cam, where "rotation" means driving the bottle-setting wheel 5 to rotate.

In the structure illustrated in fig. 1, the driven disk 1 is mounted on the lower end of the rotating shaft 2, and the driven disk 1 may be disposed at the middle lower portion of the rotating shaft 2 while being biased upward in view of the fact that whether the driven disk 1 is mounted on the lowermost end of the rotating shaft 2 has little influence on the driving of the rotating cam 23.

As a follower of the rotating cam 23, a portion of the driven plate 1 for engaging with the rotating cam 23 is referred to as a driven body, and for example, a shaft member extending downward from the driven plate 1, in which a roller 24 is mounted in fig. 2, constitutes a roller shaft in fig. 1 and 2.

The driven members correspond one-to-one with the notches, but are not required to be aligned exactly in the vertical direction, and the driving of the driven members is reflected to the bottle-setting wheel 5, i.e., the displacement of the notches, and is not directly related to the current position of the driven members.

Further, the elevating part includes an elevating shaft 14, and the elevating shaft 14 is located at one side of the rotation shaft 2 in a positional relationship with their axes parallel to each other.

And a moving pair is formed between the lifting shaft 14 and the frame, specifically, the lifting shaft 14 is matched with a lifting shaft sleeve 15 fixedly installed on the frame 4 to form a guide pair, wherein the lifting shaft sleeve 15 is installed on the frame 4 through a shaft sleeve seat 16, for example.

The lifting shaft 14 is used for controlling the lifting of the sealing assembly, the lifting stroke matches the sealing position and the reset position of the sealing head 7, and at the same time, if the cam shaft 22 rotates continuously, at least the rotating cam 23 includes an idle stroke, i.e., the rotating cam 23 has a portion which does not drive the driven disk 1 to rotate when rotating.

In some embodiments, it can also be shown that after the lifting shaft 14 is lifted to a certain position, for example, the cam motor 18 is stopped or a clutch is provided for coupling the cam motor 18 with the cam shaft 22, for example, a clutch is used, the lifting shaft 14 is stopped by clutch control, so that the sealing head 7 completes the sealing action, for example, the clutch is engaged, and the sealing head 7 is retracted.

If the cam shaft 22 is a continuously rotating part, in this type of application scenario, the rotating cam 23 provides at least two idle stroke segments for the closing head 7 to press on or off the bottle mouth based on the lifting. Depending on the type of application, the movement of the camshaft 22 is, for example, relatively simple, i.e., a continuous uniform movement.

A closure assembly comprising a closure head 7 is mounted on said lifting shaft 14 in a positional relationship with the closure assembly above one side of the wheel 5, as shown on the right side in fig. 1.

Furthermore, another expression of the positional relationship is that the sealing head 7 should be aligned with the notch currently in place when in the sealing state, so that the bottle 6 positioned by the notch can be sealed.

In the foregoing description, an application scenario has been described in which two cams are mounted on one camshaft 22, and the mechanism thus constituted is hereinafter referred to as a double cam mechanism, one of the two cams being a cylindrical cam, such as a rotary cam 23 shown in fig. 1, which is capable of generating a follower movement amount in the radial direction of the cylindrical cam, and the driven disc 1 can be driven to rotate based on the cooperation with the driven disc 1 whose axis is vertical, specifically, the side face of the rotary cam 23 is engaged with a driven body protruding from the lower surface of the driven disc 1.

Further, a disc cam, such as the lifting cam 19 shown in fig. 1, takes the lifting shaft 14 as a follower, thereby pushing the lifting shaft 14 to lift.

As a form of movement match, the disc cams are in turn fitted to the driven body, so that the lifting shaft 14 is lifted and lowered once per revolution of the camshaft 22, and the dial wheel 5 is stepped by one notch.

It is to be understood that sequential engagement with the followers does not mean that only one follower engages with a disc cam at a time.

In order to make the overall structure more visually effective, the frame provides a workbench, and the driven disc 1 is positioned below the workbench;

accordingly, the double cam mechanism is located below the table.

In the structure shown in fig. 1 and 2, the driven bodies are uniformly distributed in the circumferential direction of the driven disk 1, and the driven bodies include:

a roller shaft (not shown, but not shown, the roller 24 is identified, and the shaft member to which the roller 24 is mounted, i.e., the roller shaft), has an axis perpendicular to the disk surface of the driven disk 1, is fixedly mounted on the driven disk 1, and extends downward to a shaft head, i.e., the portion to which the roller 24 is mounted.

Correspondingly, the driven body also comprises said roller 24, which roller 24 is mounted on said stub shaft and cooperates with the cam groove of said rotary cam 23 after the roller 24 has been turned into position.

Since the linear motion of the driven member is the simplest motion form of the cam mechanism, the motion form of the lifting shaft 14 will not be described much.

Correspondingly, as shown in the lower right part of fig. 1, one side of the lower end of the lifting shaft 14 is provided with an extension part extending downwards, and the tail end of the extension part is provided with a structural body in sliding fit or rolling fit with the end face cam groove of the lifting cam.

Further, the outer contour surface of the lifting cam 19 may be in sliding engagement with the lower end of the lifting shaft 14, or may be in rolling engagement.

In fig. 1, the bottles 6 are shown in two forms, in other words, the bottles 6 have different heights due to different bottle types, so that the stroke requirement of the sealing machine head 7 is different and is limited by the stroke of the lifting shaft 14, and if the same sealing machine head 7 is adapted to a plurality of bottles 6, the axial position of the sealing assembly 7 on the lifting shaft 14 is required to be adjustable.

In some embodiments, closure assembly 7 includes a mount 9, which is loosely mounted on a lift shaft 14, and is adapted to:

the first structure: the seat frame 9 is arranged on a female seat, and a lifting screw rod 11 matched with the female seat is provided to adjust the position of the female seat on a lifting shaft 14; or

A second structure: the lifting shaft 14 is provided with a threaded hole downwards from the center of the upper end, a lifting screw rod 11 matched with the threaded hole is provided, and the sealing assembly 7 is supported on a tray of the lifting screw rod 11 through the seat frame 9 and is limited by the lifting shaft 14 in the circumferential direction.

Furthermore, in some embodiments, the seat frame 9 has a sleeve 10 to form a bushing fit with the lifting shaft 14, and the longer fitting section can ensure that the seat frame 9 has better supporting rigidity without affecting the alignment accuracy of the bottle 6 due to the long overhang.

In view of the special shape of the bottle cap equipped with some bottles 6, for example, with a pull ring, which needs to be prevented from being damaged during sealing, the sealing machine head 7 usually does not directly act on the pull ring, but the included angle between the pull ring and the cap body is usually smaller for storage and transportation, and therefore, a shaping component for shaping the bottle cap is also installed on the sealing assembly;

corresponding to the rotation direction of the bottle poking wheel 5, the shaping component is positioned at the rear side of the sealing machine head 7, and the notch aligned by the shaping component is adjacent to the notch corresponding to the sealing machine head 7.

In some embodiments, the reshaping component may be a sleeve structure, which is coaxial with the axis of the bottle 6 when the sleeve structure is pressed down, and the lower end of the sleeve wall presses against, for example, a pull ring to turn it downward, so as to prevent the bottle 6 from occupying a large space after the bottle is sealed by the pull ring.

Claims

1. A sealing machine, comprising:

a frame;

the lifting shaft and the rotating shaft are arranged on the rack in parallel;

2. The capper of claim 1 wherein the rotary cam provides at least two idle stroke segments for the capper head to engage or disengage the bottle mouth upon raising and lowering.

3. The capper of claim 1 wherein said frame provides a table, said driven disk being located below said table;

accordingly, the double cam mechanism is located below the table.

4. The capper of claim 3 wherein said driven bodies are equispaced circumferentially of the driven disk and comprise:

5. The sealing machine of claim 3, wherein the lower end of the lifting shaft is provided with an extension part extending downward, and the end of the extension part is provided with a structure body in sliding fit or rolling fit with the end face cam groove of the lifting cam.

6. The sealing machine of claim 5, wherein the outer profile of the lift cam is a sliding or rolling fit with the lower end of the lift shaft.

7. The sealing machine of claim 1, wherein the sealing assembly is adjustable in axial position on the lift shaft.

8. The capper of claim 7, wherein the capping assembly comprises a mount movably mounted on the lift shaft and adapted to:

9. The sealing machine of claim 8, wherein said mount has a bushing for forming a bushing fit with said lift shaft.

10. The sealing machine of any one of claims 1 and 7 to 9, wherein a shaping component for shaping a bottle cap is further mounted on the sealing assembly;