阅读说明：本技术 抓盖装置及压盖机 (Cover grabbing device and capping machine ) 是由 张启林 李智淼 樊缔 于 2020-08-13 设计创作，主要内容包括：本发明涉及包装设备技术领域,具体公开一种抓盖装置及压盖机。本发明的抓盖装置包括活动连接的第一连接套和滑动套,滑动套上设置有压盖模,且压盖模上至少活动设置有两个顶块,顶块的外侧设置有弹性圈,弹性圈能够限制顶块背离压盖模的轴心移动,滑动套能够相对第一连接套的轴心转动,以使顶块夹持瓶盖时,瓶盖的凸台远离顶块。本发明的抓盖装置可以调节滑动套和第一连接套的角度,在抓取瓶盖时能够避免压盖模的顶块与瓶盖的凸台发生干涉,也可以保证抓取盖子的方向一致性；通过在顶块外侧设置弹性圈,也能够限制顶块的移动并对顶块提供压力,从而提高了抓盖装置的抓取牢固性,避免出现抓盖不正、压盖歪斜等不良现象。(The invention relates to the technical field of packaging equipment, and particularly discloses a cover grabbing device and a capping machine. The cap grabbing device comprises a first connecting sleeve and a sliding sleeve which are movably connected, a cap pressing die is arranged on the sliding sleeve, at least two ejector blocks are movably arranged on the cap pressing die, an elastic ring is arranged on the outer side of each ejector block and can limit the ejector blocks to move away from the axis of the cap pressing die, and the sliding sleeve can rotate relative to the axis of the first connecting sleeve, so that a boss of a bottle cap is far away from the ejector blocks when the ejector blocks clamp the bottle cap. The cap grabbing device can adjust the angles of the sliding sleeve and the first connecting sleeve, can avoid interference between a top block of a cap pressing die and a boss of a bottle cap when the bottle cap is grabbed, and can also ensure the consistency of the direction of grabbing the cap; through set up the elastic ring in the kicking block outside, also can restrict the removal of kicking block and provide pressure to the kicking block to improve the fastness of snatching of grabbing the lid device, avoided appearing grabbing bad phenomena such as lid is just, the gland is crooked.)

1. The utility model provides a grab and cover device, its characterized in that, first connecting sleeve and sliding sleeve including swing joint, be provided with the gland mould on the sliding sleeve, just the activity is provided with two kicking blocks on the gland mould at least, the outside of kicking block is provided with the elastic ring, the elastic ring can restrict the kicking block deviates from the axle center of gland mould removes, the sliding sleeve can be relative the axle center of first connecting sleeve rotates, so that during the kicking block centre gripping bottle lid, the boss of bottle lid is kept away from the kicking block.

2. The cap grabbing device according to claim 1, wherein an ejector rod is movably arranged between the first connecting sleeve and the sliding sleeve, a through hole is arranged in the axis of the cap pressing die in a penetrating manner, and the ejector rod can axially move relative to the first connecting sleeve and penetrate through the through hole so as to push the bottle cap away.

3. The cover grabbing device as claimed in claim 2, wherein the end of the push rod is movably provided with a pressing block, and the pressing block can axially move relative to the push rod.

4. The cover grasping device according to claim 2, wherein a return spring is disposed between the push rod and the first connecting sleeve.

5. The cover grabbing device according to claim 2, wherein a second connecting sleeve is arranged between the first connecting sleeve and the ejector rod, the second connecting sleeve is movably connected with the first connecting sleeve, a pre-pressing spring is arranged between the first connecting sleeve and the second connecting sleeve, and the pre-pressing spring always has a tendency of driving the first connecting sleeve and the second connecting sleeve to be away from each other.

6. A cover gripping device according to claim 5, wherein the first connecting sleeve is provided with a guide groove, and a locking key is arranged in the guide groove, and the locking key can slide on the guide groove and can lock the first connecting sleeve and the second connecting sleeve.

7. A cap grabbing device according to claim 1, wherein at least two protrusions are arranged on one side surface of the top block close to the bottle cap, and the protrusion direction of the protrusions faces to the axis of the cap pressing die.

8. A cover gripping device according to claim 1, wherein a stop is provided between the first coupling sleeve and the sliding sleeve.

9. The cover grabbing device as claimed in claim 1, wherein a detection device is disposed on the sliding sleeve, the first connecting sleeve is provided with a controller, a driving mechanism is disposed between the first connecting sleeve and the sliding sleeve, the detection device and the driving mechanism are respectively connected to the controller, the driving mechanism is used for driving the sliding sleeve to rotate relative to the first connecting sleeve, and the detection device is used for detecting the distance between the boss and the top block.

10. A capping machine comprising cap feeding means and cap grasping means according to any one of claims 1 to 9, said cap grasping means being connected to said cap feeding means and being adapted to grasp and grip caps transported by said cap feeding means.

Technical Field

The invention relates to the technical field of packaging equipment, in particular to a cover grabbing device and a capping machine.

Background

With the development of society and the continuous improvement of living standard of people, the grade of consumer goods is continuously improved, so that the appearance of products is gradually optimized, and particularly in the industries of beverages, wines, chemical industry or medicines, various container bottles are provided and various container covers are matched for use. Packaging container such as edible oil, soy sauce, vinegar that often use in daily life, in order to make things convenient for the humanized demand of use of the interior liquid of user's pouring bottle, can be provided with the boss to the bottle lid opening usually to bottle lid boss direction is opposite with body handle direction. For the bottle cap with the boss, the direction of the boss of the bottle cap needs to be determined before the bottle cap is pressed, then the cap grabbing device is used for grabbing the bottle cap to move, and then the bottle cap is pressed on the bottle opening.

However, in the conventional rotary capping machine, when a capping mold of the cap grabbing device grabs a bottle cap, the capping mold often interferes with a boss of the bottle cap to prevent the bottle cap from being grabbed, and meanwhile, the conventional cap grabbing device cannot ensure the consistency of the direction of grabbing the cap, so that adverse phenomena such as incorrect cap grabbing and inclined capping may occur.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a cap grabbing device, which can avoid interference between a top block of a cap pressing mold and a boss of a bottle cap, and ensure consistency of directions for grabbing a cap, and has high grabbing firmness.

Another object of the embodiments of the present invention is to provide a capping machine, which ensures the consistency of the direction of grabbing caps and avoids the adverse phenomena of incorrect grabbing of caps, tilting of caps, and the like.

To achieve the purpose, the embodiment of the invention adopts the following technical scheme:

the first aspect provides a cover grabbing device, including swing joint's first connecting sleeve and sliding sleeve, be provided with the gland mould on the sliding sleeve, just the activity is provided with two kicking blocks on the gland mould at least, the outside of kicking block is provided with the elastic ring, the elastic ring can restrict the kicking block deviates from the axle center of gland mould removes, the sliding sleeve can be relative the axle center of first connecting sleeve rotates, so that during the kicking block centre gripping bottle lid, the boss of bottle lid is kept away from the kicking block.

As a preferable scheme of the cap grabbing device, an ejector rod is movably arranged between the first connecting sleeve and the sliding sleeve, a through hole penetrates through the axis of the cap pressing die, and the ejector rod can axially move relative to the first connecting sleeve and penetrate through the through hole so as to push the bottle cap away.

As a preferable scheme of the cover grabbing device, a press block is movably arranged at the end part of the ejector rod, and the press block can axially move relative to the ejector rod.

As a preferable scheme of the cover grabbing device, a return spring is arranged between the ejector rod and the first connecting sleeve.

As an optimal scheme of the cover grabbing device, a second connecting sleeve is arranged between the first connecting sleeve and the ejector rod, the second connecting sleeve is movably connected with the first connecting sleeve, a pre-pressing spring is arranged between the first connecting sleeve and the second connecting sleeve, and the pre-pressing spring always has a tendency of driving the first connecting sleeve and the second connecting sleeve to be away from each other.

As a preferable scheme of the cover grabbing device, a guide groove is formed in the first connecting sleeve, and a locking key is arranged in the guide groove, and the locking key can slide on the guide groove and can lock the first connecting sleeve and the second connecting sleeve.

As a preferable scheme of the cap grabbing device, at least two convex parts are arranged on one side surface of the top block close to the bottle cap, and the convex direction of the convex parts faces to the axis of the cap pressing die.

As a preferred aspect of the cover grasping device, a stopper is provided between the first connecting sleeve and the sliding sleeve.

As a preferred scheme of the cover grabbing device, a detection device is arranged on the sliding sleeve, a controller is arranged on the first connecting sleeve, a driving mechanism is arranged between the first connecting sleeve and the sliding sleeve, the detection device and the driving mechanism are respectively connected with the controller, the driving mechanism is used for driving the sliding sleeve to rotate relative to the first connecting sleeve, and the detection device is used for detecting the distance between the boss and the ejector block.

In a second aspect, a capping machine is provided, which comprises a cap conveying device and a cap grabbing device, wherein the cap grabbing device is connected with the cap conveying device and used for grabbing and clamping the bottle caps transported by the cap conveying device.

The embodiment of the invention has the beneficial effects that:

with first connecting sleeve and sliding sleeve swing joint, set up the gland mould on the sliding sleeve, and the activity is provided with two kicking blocks on the gland mould at least, the outside of kicking block is provided with the elastic ring, and the elastic ring can restrict the axle center that the kicking block deviates from the gland mould and remove for when the gland mould is close to the bottle lid, the bottle lid can be filled in between two at least kicking blocks, because the kicking block is removed by the elastic ring restriction, makes the bottle lid can be by the kicking block centre gripping. Because the sliding sleeve can rotate relative to the axis of the first connecting sleeve, the relative angle of the sliding sleeve relative to the first connecting sleeve can be adjusted, so that when the top block clamps the bottle cap, the boss of the bottle cap is far away from the top block, and the interference of the boss of the bottle cap with the cap pressing die and the top block is avoided. Therefore, the cap grabbing device provided by the embodiment of the invention can adjust the angles of the sliding sleeve and the first connecting sleeve, can avoid interference between the top block of the cap pressing die and the boss of the bottle cap when the bottle cap is grabbed, and can also ensure the consistency of the direction for grabbing the cap; through set up the elastic ring in the kicking block outside, also can restrict the removal of kicking block and provide pressure to the kicking block to improve the fastness of snatching of grabbing the lid device, avoided appearing grabbing bad phenomena such as lid is just, the gland is crooked.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic side sectional view of a cap grabbing device according to an embodiment of the present invention.

Fig. 2 is a schematic bottom sectional view of a cap grabbing device according to an embodiment of the present invention.

Fig. 3 is a schematic side sectional view of a cap grabbing device according to another embodiment of the present invention.

Fig. 4 is an isometric view of a partial structure of a cap grasping device according to an embodiment of the invention.

Fig. 5 is a schematic partial structural view of a capping machine according to an embodiment of the present invention.

In the figure:

1. a cover grasping device; 11. a first connecting sleeve; 111. a guide groove; 112. a locking key; 113. a controller; 12. a sliding sleeve; 121. pressing a cover die; 1210. a through hole; 122. a top block; 1220. a boss portion; 123. an elastic ring; 13. a top rod; 131. briquetting; 14. a return spring; 15. a second connecting sleeve; 16. pre-pressing a spring; 17. a stopper portion; 18. a detection device; 19. a drive mechanism; 2. a cap feeding device; 21. a limiting block; 200. a bottle cap; 201. and (4) a boss.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, an embodiment of the present invention provides a cap grabbing device 1, which includes a first connecting sleeve 11 and a sliding sleeve 12 movably connected to each other, a capping die 121 is disposed on the sliding sleeve 12, at least two ejector blocks 122 are movably disposed on the capping die 121, an elastic ring 123 is disposed outside the ejector block 122, the elastic ring 123 can limit the ejector block 122 to move away from an axis of the capping die 121, and the sliding sleeve 12 can rotate relative to an axis of the first connecting sleeve 11, so that when the ejector block 122 clamps a bottle cap 200, a boss 201 of the bottle cap 200 is away from the ejector block 122.

According to the embodiment of the invention, the first connecting sleeve 11 is movably connected with the sliding sleeve 12, the sliding sleeve 12 is provided with the capping die 121, the capping die 121 is at least movably provided with two ejector blocks 122, the outer sides of the ejector blocks 122 are provided with the elastic rings 123, and the elastic rings 123 can limit the ejector blocks 122 to move away from the axis of the capping die 121, so that when the capping die 121 approaches the bottle cap 200, the bottle cap 200 can be inserted between the at least two ejector blocks 122, and the bottle cap 200 can be clamped by the ejector blocks 122 as the ejector blocks 122 are limited by the elastic rings 123 to move. Because the sliding sleeve 12 can rotate relative to the axis of the first connecting sleeve 11, the relative angle of the sliding sleeve 12 relative to the first connecting sleeve 11 can be adjusted, so that when the top block 122 clamps the bottle cap 200, the boss 201 of the bottle cap 200 is far away from the top block 122, and the boss 201 of the bottle cap 200 is prevented from interfering with the cap pressing die 121 and the top block 122. Therefore, the cap grabbing device 1 of the embodiment of the invention can adjust the angles of the sliding sleeve 12 and the first connecting sleeve 11, can avoid the interference between the top block 122 of the cap pressing die 121 and the boss 201 of the cap 200 when grabbing the cap 200, and can also ensure the consistency of the cap grabbing direction; through set up the elastic ring 123 in the kicking block 122 outside, also can restrict the removal of kicking block 122 and provide pressure to kicking block 122 to improved and grabbed the fastness of grabbing of covering device 1, avoided appearing grabbing bad phenomena such as the lid is improper, the gland is crooked.

The connection mode of the top block 122 and the capping die 121 is various, preferably, a groove is provided on the capping die 121, the top block 122 is disposed in the groove of the capping die 121, and the top block 122 can move radially outward or inward relative to the axis of the capping die 121.

In addition, referring to fig. 1, the first connecting sleeve 11 and the sliding sleeve 12 may be connected by a capping die 121, wherein the sliding sleeve 12 is fixedly connected with the capping die 121, and the capping die 121 is slidably connected with the first connecting sleeve 11, so that the first connecting sleeve 11 and the sliding sleeve 12 can slide relatively.

In order to recycle the cap gripper 1, in the arrangement of the production line, after the cap gripper 1 grips the bottle cap 200 at the head end of the production line, the bottle cap 200 is usually put down at the end of the production line, for example, the cap 200 is closed on the flat mouth of the bottle by the capping die 121, however, the connection between the bottle cap 200 and the bottle mouth may not be stable, so that the bottle cap 200 cannot be separated from the capping die 121 to affect the gripping of the next bottle cap 200. In one embodiment, referring to fig. 3, a top rod 13 is movably disposed between the first connecting sleeve 11 and the sliding sleeve 12, a through hole 1210 is disposed through the axis of the capping mold 121, the top rod 13 can axially move relative to the first connecting sleeve 11 and penetrate through the through hole 1210, and when the bottle cap 200 cannot be separated from the capping mold 121, the top rod 13 protrudes from the through hole 1210, so that the bottle cap 200 can be lifted off the capping mold 121.

Further, with continued reference to fig. 3, the end of the top rod 13 is movably provided with a pressing block 131, and the pressing block 131 can move axially relative to the top rod 13, thereby shortening or lengthening the top rod 13. When facing bottle caps 200 of different specifications, the capping die 121 can be set to different specifications and heights, and at the moment, the ejector rod 13 can be shortened or prolonged by arranging the pressing block 131 which can be movably connected with the ejector rod 13, so that the bottle caps 200 of different specifications can be ejected from the capping die 121.

In particular, with continued reference to fig. 3, a return spring 14 is disposed between the push rod 13 and the first connecting sleeve 11, and the return spring 14 can rebound the push rod 13 into the first connecting sleeve 11 when the push rod 13 extends out of the through hole 1210 of the first connecting sleeve 11, so as to save kinetic energy for driving the push rod 13 to move.

In addition, with reference to fig. 3, a second connection sleeve 15 is disposed between the first connection sleeve 11 and the ejector rod 13, the second connection sleeve 15 is movably connected to the first connection sleeve 11, a pre-pressing spring 16 is disposed between the first connection sleeve 11 and the second connection sleeve 15, and the pre-pressing spring 16 always has a tendency of driving the first connection sleeve 11 and the second connection sleeve 15 to move away from each other. Through setting up the second adapter sleeve 15 that can with first adapter sleeve 11 swing joint, can prolong first adapter sleeve 11, in addition also can play further spacing effect to ejector pin 13, and set up pre-compaction spring 16 between first adapter sleeve 11 and second adapter sleeve 15, utilize pre-compaction spring 16 to first adapter sleeve 11 and the pre-pressure of second adapter sleeve 15, can be when grabbing lid device 1 and closing bottle lid 200 lid to the bottle, can cushion the impact force between gland mould 121 and the bottle, also can be when second adapter sleeve 15 twists reverse relative first adapter sleeve 11, can reset to the primary position by pre-compaction spring 16.

Further, with reference to fig. 3, the first connecting sleeve 11 is provided with a guide groove 111, a locking key 112 is provided in the guide groove 111, the locking key 112 can slide on the guide groove 111, after the relative distance between the first connecting sleeve 11 and the second connecting sleeve 15 can be adjusted, the first connecting sleeve 11 and the second connecting sleeve 15 can be locked and connected by the locking key 112, and the guide groove 111 can limit the relative rotation between the first connecting sleeve 11 and the second connecting sleeve 15.

In another embodiment, referring to fig. 2 and 4, at least two protrusions 1220 are disposed on a side of the top block 122 close to the bottle cap 200, and the bottle cap 200 is clamped by the protrusions 1220, because the protrusion direction of the protrusions 1220 faces the axis of the cap pressing mold 121, the center of the bottle cap 200 can be kept concentric with the axis of the cap pressing mold 121, and the positioning accuracy of the cap grabbing device 1 for grabbing the bottle cap 200 according to the embodiment is improved.

Preferably, with continued reference to fig. 1, a stopper 17 is disposed between the first connecting sleeve 11 and the sliding sleeve 12, the stopper 17 can limit the rotation of the first connecting sleeve 11 and the sliding sleeve 12, and when the sliding sleeve 12 rotates until the top block 122 does not interfere with the boss 201 of the bottle cap 200, the stopper 17 ensures the connection stability of the first connecting sleeve 11 and the sliding sleeve 12, and prevents the first connecting sleeve 11 and the sliding sleeve 12 from rotating during the operation of the cap grasping device 1.

In another preferred embodiment, referring to fig. 2 and 3, the sliding sleeve 12 is provided with a detecting device 18, the first connecting sleeve 11 is provided with a controller 113, a driving mechanism 19 is arranged between the first connecting sleeve 11 and the sliding sleeve 12, the detecting device 18 and the driving mechanism 19 are respectively connected with the controller 113, the driving mechanism 19 is used for driving the sliding sleeve 12 to rotate relative to the first connecting sleeve 11, and the detecting device 18 is used for detecting the distance between the boss 201 and the top block 122. When the boss 201 is overlapped with the top block 122, the top block 122 interferes with the connection between the top block 122 and the boss 201 of the bottle cap 200, and when the distance between the boss 201 and the top block 122 is detected to be smaller than the preset distance threshold, the controller 113 controls the driving mechanism 19 to act, so that the sliding sleeve 12 is driven to rotate relative to the first connecting sleeve 11 until the distance between the boss 201 and the top block 122 is larger than or equal to the preset distance threshold. The present embodiment can automatically complete the rotation adjustment between the sliding sleeve 12 and the first connecting sleeve 11, and further avoid the connection interference between the top block 122 and the boss 201 of the bottle cap 200.

The driving mechanism 19 of this embodiment may be a combination of a driving motor and a rolling wheel, or a combination of a driving motor and a gear, and the first connecting sleeve 11 is provided with teeth corresponding to the tooth profile of the gear, which is not limited in this embodiment.

Referring to fig. 5, the capping machine according to an embodiment of the present invention further includes a cap conveying device 2, and the cap grabbing device 1 according to any of the above embodiments, where the cap grabbing device 1 is connected to the cap conveying device 2, and the cap grabbing device 1 is configured to grab and clamp a cap 200 transported by the cap conveying device 2. The cover grabbing device 1 in this embodiment may have the same structure and achieve the same effect as the cover grabbing device 1 in the above embodiment, and details are not described in this embodiment.

Alternatively, the cap feeding device 2 of the present embodiment is provided with a stopper 21 capable of fixing the boss 201 of the cap 200, and the stopper 21 is capable of restricting the rotation of the cap 200.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.