Internal plug cover sorter

Abstract

The present invention discloses a cap sorter for internal plug caps, comprising a cap bucket and a cap selection groove. The cap bucket is provided with a cap outlet. One end of the cap selection groove is arranged above the cap outlet. The height of the cap selection groove away from the end of the cap bucket is lower than the height of the cap outlet. A first air duct is provided inside the cap selection groove. The first air duct forms a first air inlet and a first air outlet on the surface of the cap selection groove. The airflow ejected from the first air outlet can blow out bottle caps with incorrect postures in the cap selection groove. The cap sorter for internal plug caps of the present invention has a simple structure and low cost. Since there are no moving parts, it will not cause squeezing of the bottle caps. The bottle caps rely on the action of gravity to enter the cap selection groove by themselves. The bottle caps also use the action of gravity to adjust their posture in the cap selection groove, so that most bottle caps can be in the correct posture. Bottle caps with incorrect postures in the cap selection groove are blown out of the cap selection groove by the airflow ejected from the first air outlet, so that all bottle caps output from the cap selection groove are in the correct posture.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery, in particular to a cap sorting device with inner plugs. Background Art

[0002] Liquid condiment packaging, such as glass soy sauce bottles, is filled with a plug-in cap after the soy sauce is filled. This cap is typically made of high-density polyethylene, which is soft and provides a good seal. To install this cap in automated equipment, the plug-in caps must first be arranged in a consistent orientation, requiring a cap sorter. The current common cap sorting method uses a centrifugal turntable structure to throw the caps into grooves along the turntable's circumference. Using the caps' motion and gravity, the caps with the highest probability of being in the correct orientation are selected as the correct caps. Air is then blown away, resulting in only the caps with the desired orientation. However, this cap sorting method has a drawback: due to machining and assembly errors, the cap selection plate can vibrate. Furthermore, because the selector plate rotates, softer caps can squeeze into the selection grooves, causing them to become stuck. Summary of the Invention

[0003] The object of the present invention is to provide a cap sorter with an inner plug, which can solve the problem that the existing cap sorter with an inner plug is easy to get stuck, and has a simple structure and low cost.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Provided is a cap sorter with inner plugs, comprising a cap bucket and a cap selection groove, wherein the cap bucket is provided with a cap outlet, one end of the cap selection groove is arranged on the cap outlet, the height of the cap selection groove away from the one end of the cap bucket is lower than the height of the cap outlet, a first air channel is provided inside the cap selection groove, the first air channel forms a first air inlet and a first air outlet on the surface of the cap selection groove, and the airflow ejected from the first air outlet can blow out bottle caps with incorrect postures in the cap selection groove.

[0006] As a preferred solution of the inner plug cover sorter of the present invention, the groove wall of the cover selection groove includes two first planes, two second planes, a third plane and a fourth plane, all of which are rectangular. The two first planes are spaced apart and arranged in parallel. One side of the first plane is connected to the groove bottom of the cover selection groove, and the side of the first plane away from the groove bottom is connected to one side of the second plane. The first plane is perpendicular to the second plane. The side of one second plane away from the first plane is connected to one side of the third plane, and the side of another second plane away from the first plane is connected to one side of the fourth plane. The third plane and the second plane are arranged at an obtuse angle, and the fourth plane and the second plane are also arranged at an obtuse angle.

[0007] As a preferred solution of the inner plug lid sorter of the present invention, the length of the third plane is greater than the length of the fourth plane, and the first air outlet is located at an end of the third plane away from the lid bucket.

[0008] As a preferred solution of the inner plug cap sorter of the present invention, the inner plug cap sorter also includes a recovery pipe, one end of the recovery pipe is arranged on the cap selection groove and opposite to the first air outlet, and the other end of the recovery pipe is arranged in the cap bucket.

[0009] As a preferred solution of the inner plug cap sorter of the present invention, the recovery pipeline includes a joint, a tube body and a vent pipe, the joint is arranged on the cap selection groove, one end of the tube body is connected to the joint, and the other end of the tube body is located in the cap bucket, and the vent pipe is arranged on the tube body. The airflow entering from the vent pipe can blow the bottle caps in the tube body into the cap bucket.

[0010] As a preferred solution of the inner plug cap sorter of the present invention, the tube body includes a U-shaped tube segment, one end of the U-shaped tube segment is connected to the bottom of the joint, and the vent pipe is arranged on the U-shaped tube segment.

[0011] As a preferred solution of the inner plug cap sorter of the present invention, a plurality of second air channels are further provided inside the cap selection groove, and the second air channels form a second air inlet and a second air outlet on the surface of the cap selection groove, and the angle between the direction of the air flow ejected from the second air outlet and the conveying direction of the bottle caps is an acute angle.

[0012] As a preferred solution of the inner plug capping and capping device of the present invention, the inner plug capping and capping device further comprises a plurality of air pipe connectors, and the air pipe connectors are arranged on the first air inlet or the second air inlet.

[0013] As a preferred solution of the inner plug cap sorter of the present invention, the inner plug cap sorter further comprises a cover plate, the cover plate covers the top of the cap selection slot, and the cover plate is detachably connected to the cap selection slot.

[0014] As a preferred solution of the inner plug cap sorter of the present invention, the inner plug cap sorter further comprises a cap outlet flange, which is arranged on the end surface of the cap selection groove away from the cap bucket, and has a cap hole.

[0015] Beneficial effects of the present invention:

[0016] The cap sorter for inner plug caps of the present invention has a simple structure and low cost. Since it has no moving parts, it will not squeeze the bottle caps. The bottle caps rely on gravity to automatically enter the cap selection slot from the cap hopper. The bottle caps also use gravity to adjust their posture in the cap selection slot, so that most bottle caps are in the correct posture. Bottle caps in the cap selection slot with incorrect postures are blown out of the cap selection slot by the airflow ejected from the first air outlet, so that the bottle caps discharged from the cap selection slot are all in the correct posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the inner plug cover sorter according to one embodiment of the present invention;

[0018] Figure 2 A schematic diagram of an inner plug cover in a correct position in a cover selection slot according to an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of an inner plug cover in an incorrect position in a cover selection slot according to an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of an inner plug cover in an embodiment of the present invention when the inner plug cover is in another incorrect posture in the cover selection slot;

[0021] Figure 5 A schematic cross-sectional view of a cover selection groove according to another embodiment of the present invention;

[0022] Figure 6 for Figure 5 Another cross-sectional schematic diagram of the cover selection groove of the embodiment;

[0023] Figure 7 for Figure 5 Another cross-sectional schematic diagram of the cover selection groove of the embodiment;

[0024] Figure 8 for Figure 1 A three-dimensional view of the recovery pipeline.

[0025] In the picture:

[0026] 1. Lid bucket; 11. Lid outlet; 2. Lid selection slot; 21. First air duct; 211. First air inlet; 212. First air outlet; 22. First plane; 23. Second plane; 24. Third plane; 25. Fourth plane; 26. Slot bottom; 27. Second air duct; 271. Second air inlet; 272. Second air outlet; 3. Recovery pipe; 31. Joint; 32. Pipe body; 321. U-shaped pipe section; 33. Ventilation pipe; 4. Air pipe connector; 5. Cover plate; 6. Lid outlet flange; 61. Lid hole; 100. Bottle cap. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below" a second feature may include the first feature being directly below or diagonally below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0030] like Figures 1 to 4 As shown, an inner plug cap sorter of one embodiment includes a cap bucket 1 and a cap selection groove 2, a cap outlet 11 is provided on the cap bucket 1, one end of the cap selection groove 2 is arranged on the cap outlet 11, the height of the cap selection groove 2 away from the end of the cap bucket 1 is lower than the height of the cap outlet 11, a first air channel 21 is provided inside the cap selection groove 2, the first air channel 21 forms a first air inlet 211 and a first air outlet 212 on the surface of the cap selection groove 2, and the airflow ejected from the first air outlet 212 can blow out the bottle caps 100 with the wrong posture in the cap selection groove 2.

[0031] The cap sorter for inner plug caps of the present invention has a simple structure and low cost. Since it has no moving parts, it will not squeeze the bottle caps 100. The bottle caps 100 rely on the effect of gravity to automatically enter the cap selection slot 2 from the cap bucket 1. The bottle caps 100 also use the effect of gravity to adjust their posture in the cap selection slot 2, so that most bottle caps 100 can be in the correct posture. The center of gravity of the bottle caps 100 with the wrong posture will be at a higher position. The bottle caps 100 with the wrong posture in the cap selection slot 2 will be blown out of the cap selection slot 2 by the airflow ejected from the first air outlet 212. Only the bottle caps 100 with the correct posture will not be blown away by the airflow ejected from the first air outlet 212, so that the bottle caps 100 output from the cap selection slot 2 are all in the correct posture.

[0032] Furthermore, the groove wall of the selection cover groove 2 includes two first planes 22, two second planes 23, a third plane 24 and a fourth plane 25, all of which are rectangular. The two first planes 22 are spaced apart and arranged in parallel. One side of the first plane 22 is connected to the groove bottom 26 of the selection cover groove 2, and the side of the first plane 22 away from the groove bottom 26 is connected to one side of the second plane 23, and the first plane 22 is perpendicular to the second plane 23. The side of one second plane 23 away from the first plane 22 is connected to one side of the third plane 24, and the side of the other second plane 23 away from the first plane 22 is connected to one side of the fourth plane 25. The third plane 24 and the second plane 23 are arranged at an obtuse angle, and the fourth plane 25 and the second plane 23 are also arranged at an obtuse angle.

[0033] like Figure 5 As shown, by reasonably setting the width of the second plane 23, the cover groove 2 is selected to make Figure 4 The bottle cap 100 in the middle cannot remain stable and will roll between the two first planes 22 under the influence of its own gravity. The state of the bottle cap 100 becomes Figure 2 When the bottle cap 100 is in the middle position, the second flat surface 23 supports the flange of the bottle cap 100, allowing the bottle cap 100 to slide down the cap selection groove 2. The spacing between the two first flat surfaces 22 is also set according to the diameter of the bottle cap 100 to ensure the stability of the bottle cap 100 during sliding. The third flat surface 24 is set at an obtuse angle to the second flat surface 23, and the fourth flat surface 25 is also set at an obtuse angle to the second flat surface 23. This provides the cap selection groove 2 with a large space to accommodate the bottle cap 100. After the bottle cap 100 falls from the cap hopper 1 into the cap selection groove 2, it is less likely to get stuck. The bottle cap 100 will also slide down to a lower position in the cap selection groove 2 along the slope formed by the third flat surface 24 or the fourth flat surface 25.

[0034] like Figure 6 As shown, the bottle cap 100 on the left side of the figure will rotate counterclockwise under the action of gravity, and finally become the state of the bottle cap 100 on the right side of the figure. The bottle cap 100 in the middle position of the figure will rotate clockwise under the action of gravity, and finally become the state of the bottle cap 100 on the right side of the figure, thereby realizing automatic straightening of the bottle cap 100.

[0035] like Figure 1 and Figure 7 As shown, a plurality of second air channels 27 are further provided inside the cap selection groove 2. The second air channels 27 form a second air inlet 271 and a second air outlet 272 on the surface of the cap selection groove 2. The angle between the direction of the airflow ejected from the second air outlet 272 and the conveying direction of the bottle cap 100 is an acute angle, which can speed up the movement speed of the bottle cap 100, improve the cap selection efficiency, and reduce the probability of the bottle cap 100 being blocked in the cap selection groove 2.

[0036] The second air outlet 272 is preferably opened on the first plane 22 , and its opening position corresponds to the position of the center of gravity of the bottle cap 100 , so that the bottle cap 100 can move smoothly and reduce the probability of the bottle cap 100 jumping.

[0037] Furthermore, the inner plug cap sorter also includes a plurality of air pipe connectors 4, which are arranged on the first air inlet 211 or the second air inlet 271. The air pipe connectors 4 are connected to hoses or hard pipes so that compressed gas can smoothly flow into the first air channel 21 or the second air channel 27.

[0038] In this embodiment, the length of the third plane 24 is greater than that of the fourth plane 25, and the first air outlet 212 is located at the end of the third plane 24 away from the cap hopper 1. This forms a gap at the end of the cap selection slot 2 away from the cap hopper 1, allowing bottle caps 100 with incorrect postures to be blown out of the cap selection slot 2.

[0039] like Figure 1 As shown, the cap sorter further includes a recovery pipe 3, one end of which is disposed on the cap selection groove 2 and opposite to the first air outlet 212, and the other end of which is disposed in the cap hopper 1. The bottle caps 100 blown out of the cap selection groove 2 can be returned to the cap hopper 1 through the recovery pipe 3, thus achieving a circular cap selection process.

[0040] Furthermore, the recovery pipe 3 includes a connector 31, a pipe body 32, and a vent pipe 33. The connector 31 is provided on the cap selection slot 2. One end of the pipe body 32 is connected to the connector 31, and the other end of the pipe body 32 is located in the cap hopper 1. The vent pipe 33 is provided on the pipe body 32. The airflow entering from the vent pipe 33 can blow the bottle caps 100 in the pipe body 32 into the cap hopper 1. The shape of the connector 31 can match the notch at the end of the cap selection slot 2, so that the connector 31 can remain stable on the cap selection slot 2. The vent pipe 33 can be connected to compressed air to enable the bottle caps 100 in the pipe body 32 to overcome gravity and return to the cap hopper 1.

[0041] like Figure 8 As shown, the tube body 32 further includes a U-shaped tube section 321, one end of which is connected to the bottom of the connector 31. A vent tube 33 is disposed on the U-shaped tube section 321. Bottle caps 100 entering the connector 31 will naturally fall into the U-shaped tube section 321 under the action of gravity, preventing the connector 31 from clogging due to the accumulation of bottle caps 100. Bottle caps 100 that fall into the U-shaped tube section 321 will fall to the lowest point of the U-shaped tube section 321, where they are then blown into the cap bucket 1 by compressed air from the vent tube 33.

[0042] Figure 1The illustrated cap inserting and sorting device further includes a cover plate 5 , which covers the top of the cap selection slot 2 and is detachably connected to the slot 2. The cover plate 5 can be made of a transparent material, such as transparent plastic, so that the state of the bottle caps 100 in the slot 2 can be observed. The cover plate 5 also prevents the bottle caps 100 from jumping out of the slot 2. Furthermore, the cover plate 5 compresses the connector 31, making it more stable.

[0043] Figure 1 The cap sorter shown further includes a cap discharge flange 6, which is disposed on the end surface of the cap selection trough 2 away from the cap hopper 1. The cap discharge flange 6 is provided with a cap passing hole 61. The side of the cap discharge flange 6 facing away from the cap selection trough 2 can be connected to other equipment, so that the bottle caps 100 passing through the cap passing hole 61 can be transported to subsequent equipment.

[0044] In the description of this specification, the reference terms "preferably," "further," etc., as preferred embodiments of the present invention, indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The above embodiments are merely illustrative of the detailed embodiments of the present invention. The present invention is not limited to the detailed embodiments described above, nor does it necessarily rely on the detailed embodiments to be implemented. Those skilled in the art will appreciate that any improvements to the present invention, equivalent replacements of raw materials for the products of the present invention, addition of auxiliary ingredients, and selection of specific methods, etc., fall within the scope of protection and disclosure of the present invention.

Claims

1. A cap sorter with inner plugs, characterized in that: The bottle cap comprises a cap bucket and a cap selection groove, wherein the cap bucket is provided with a cap outlet, one end of the cap selection groove is provided on the cap outlet, the height of the cap selection groove away from the one end of the cap bucket is lower than the height of the cap outlet, the bottle cap can automatically enter the cap selection groove from the cap bucket by the action of gravity, the bottle cap can adjust its posture in the cap selection groove by the action of gravity, a first air channel is provided inside the cap selection groove, the first air channel forms a first air inlet and a first air outlet on the surface of the cap selection groove, and the airflow ejected from the first air outlet can blow out the bottle cap with the wrong posture in the cap selection groove; The groove wall of the cover selection groove includes two first planes, two second planes, a third plane and a fourth plane, all of which are rectangular. The two first planes are spaced apart and arranged in parallel. One side of the first plane is connected to the groove bottom of the cover selection groove, and the side of the first plane away from the groove bottom is connected to the side of the second plane. The first plane is perpendicular to the second plane. The side of one second plane away from the first plane is connected to one side of the third plane, and the side of another second plane away from the first plane is connected to one side of the fourth plane. The third plane and the second plane are arranged at an obtuse angle, and the fourth plane and the second plane are also arranged at an obtuse angle.

2. The inner plug cover sorter according to claim 1, characterized in that: The length of the third plane is greater than that of the fourth plane, and the first air outlet is located at an end of the third plane away from the cover.

3. The inner plug cover sorter according to claim 2, characterized in that: The inner plug cap sorter further comprises a recovery pipe, one end of which is arranged on the cap selection groove and opposite to the first air outlet, and the other end of which is arranged in the cap hopper.

4. The cap sorter according to claim 3, characterized in that: The recovery pipeline includes a joint, a tube body and a vent pipe. The joint is arranged on the cap selection groove, one end of the tube body is connected to the joint, and the other end of the tube body is located in the cap bucket. The vent pipe is arranged on the tube body, and the air flow entering from the vent pipe can blow the bottle caps in the tube body into the cap bucket.

5. The cap sorter according to claim 4, characterized in that: The pipe body includes a U-shaped pipe section, one end of the U-shaped pipe section is connected to the bottom of the joint, and the vent pipe is arranged on the U-shaped pipe section.

6. The capping device according to any one of claims 1 to 5, characterized in that: A plurality of second air channels are also provided inside the cap selection groove, and the second air channels form a second air inlet and a second air outlet on the surface of the cap selection groove, and the angle between the air flow direction ejected from the second air outlet and the conveying direction of the bottle caps is an acute angle.

7. The cap sorter according to claim 6, characterized in that: The inner plug cap sorter further comprises a plurality of air pipe connectors, and the air pipe connectors are arranged on the first air inlet or the second air inlet.

8. The cap organizer according to any one of claims 1 to 5, characterized in that: The inner plug cover sorter also includes a cover plate, which covers the top of the cover selection groove and is detachably connected to the cover selection groove.

9. The cap organizer according to any one of claims 1 to 5, characterized in that: The inner plug cover sorter also includes a cover outlet flange, which is arranged on the end surface of the cover selection groove away from the cover bucket, and a cover hole is provided on the cover outlet flange.

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