Bottle cap anti-reverse device

Abstract

The invention discloses a bottle cap anti-reverse device, comprising: a conveying track; a movable mounting frame, which is movably connected to the conveying track and on which a star wheel is rotatably arranged, a height gap lower than the height of the bottle cap is provided between the lower end of the star wheel and the upper surface of the conveying track, and the bottle cap with an opening facing upward can be pushed to pass through the height gap when the star wheel rotates; a sensing device is provided on the conveying track, and a sensing piece matched with the sensing device is provided on the movable mounting frame; a pressing mechanism can press and fix the bottle cap located below the star wheel on the conveying track; the movable mounting frame moves relative to the conveying track to make the sensing piece leave or enter the sensing area of ​​the sensing device; a control system is used to control the action of the pressing mechanism and the conveying track; the bottle cap anti-reverse device can automatically identify the bottle cap placed in reverse, avoid the generation of defective products, avoid the waste of semi-finished bottle caps, and ensure the normal progress of the subsequent process.

Description

Technical Field

[0001] The invention relates to a bottle cap anti-reverse device. Background Art

[0002] During the production process of bottle caps, some bottle caps need to be printed on their inner surfaces, which requires the bottle caps to be in an upward opening state during the transportation and transfer process. However, during the production and transportation process of the previous process, some bottle caps are still placed in a certain direction, which makes it impossible to carry out the printing process or waste the semi-finished bottle caps. In the prior art, there is no corresponding device that can automatically identify the reverse direction of the bottle cap, which makes the printing equipment unable to work normally and even damages the corresponding production equipment. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a bottle cap anti-reversal device which can automatically identify the reverse placement of the bottle cap.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A bottle cap anti-reverse device comprises: a conveying track for conveying bottle caps from one end thereof to the other end; a movable mounting frame, movably connected to the conveying track, on which a star wheel located above the conveying track is rotatably arranged, a height gap lower than the height of the bottle caps is provided between the lower end of the star wheel and the upper surface of the conveying track, and the bottle caps with openings facing upward can be pushed to pass through the height gap when the star wheel rotates; a sensing device is provided on the conveying track, and a sensing piece matching the sensing device is provided on the movable mounting frame; a pressing mechanism is located on one side of the star wheel, and can press and fix the bottle caps located below the star wheel on the conveying track; the movable mounting frame can move relative to the conveying track to make the sensing piece leave or enter the sensing area of ​​the sensing device; a control system is electrically connected to the conveying track, the pressing mechanism and the sensing device, and is used to control the actions of the pressing mechanism and the conveying track.

[0006] As a preferred embodiment of the present invention, the interior of the conveying track is provided with a gas channel extending along its length direction, and the upper surface of the conveying track is evenly distributed along its length direction with a number of exhaust holes connected to the gas channel and having the same exhaust direction, and the gas channel is connected to a gas supply device. The output end of the gas supply device provides high-pressure gas to the gas channel, and the high-pressure gas discharged from the exhaust holes can push the bottle caps to be transported on the conveying track. The use of pneumatic transmission is beneficial to improving the conveying efficiency of the bottle caps. Among them, the gas outlet direction of the exhaust holes is inclined upward along the conveying direction of the bottle caps, and the component force of the high-pressure gas discharged from the exhaust holes in the vertical direction can basically offset the gravity of the bottle caps, and the component force of the high-pressure gas discharged from the exhaust holes in the horizontal direction can push the bottle caps to move forward.

[0007] In some embodiments of the present invention, the conveying track is provided with a plurality of gantry frames for the bottle caps to pass through at intervals along its length direction, and an anti-slip fence is respectively provided on the two inner side surfaces of the gantry frame, and the distance between the two anti-slip fences corresponds to the diameter of the bottle caps, and the anti-slip fence and the gantry frame have a guiding effect on the movement of the bottle caps.

[0008] In some embodiments of the present invention, preferably, the pressing mechanism is a cylinder fixed to the front side of the conveying track, and the extended end of the cylinder can press the bottle cap against the anti-dropping bar located at the rear side of the conveying track. Of course, in other embodiments, the pressing mechanism can also be replaced by a motor-driven screw mechanism, a motor-driven gear rack mechanism, etc.

[0009] In some embodiments of the present invention, preferably, the gantry frame includes a first vertical beam fixed on the front side of the conveying track, a second vertical beam fixed on the rear side of the conveying track, and a cross beam with one end hinged on the second vertical beam and the other end being able to abut against the upper end of the first vertical beam, the movable mounting frame includes an upper end plate fixed on the cross beam, the star wheel is fixed on the upper end plate through a mounting seat, and the upper end plate is provided with a through hole for the star wheel to pass downward. When the star wheel is lifted by the bottle cap with the opening downward, the upper end plate drives the cross beam to rotate relative to the second vertical beam, and the induction member moves away from or close to the induction device following the movement of the upper end plate.

[0010] Preferably, the star wheel is detachably connected to the mounting seat, and star wheels of different sizes can be replaced according to different bottle cap products, thereby adjusting the size of the height gap.

[0011] In order to be able to observe the transportation status of the bottle caps on the conveying track from above the upper end plate, the upper end plate is preferably made of a transparent material, such as a glass plate or the like.

[0012] As a preferred embodiment of the present invention, the movable mounting frame is hinged on the conveying track and can be flipped toward the rear side of the conveying track, and the sensing member can follow the movement of the movable mounting frame to leave or enter the sensing area of ​​the sensing device.

[0013] In this embodiment, the sensing device is a proximity sensor fixed on the front side of the conveying track, and the sensing member is a metal member fixed on a movable mounting frame and can be close to the proximity sensor.

[0014] Preferably, one bottle cap on the conveying track corresponds to one gear tooth on the star wheel, and the horizontal distance between two adjacent gear teeth of the star wheel is greater than the inner diameter of the bottle cap. When multiple bottle caps pass through the star wheel, the star wheel rotates fewer times, thereby preventing the rotating shaft of the star wheel from being easily damaged.

[0015] Beneficial effect: when the bottle cap anti-reverse device of the present invention is working, when the bottle cap with the opening upward is transported on the conveying track to contact the star wheel, the bottle cap can drive the star wheel to rotate, and the star wheel can push the bottle cap to pass through the above-mentioned height gap during the rotation; since the height gap is smaller than the height of the bottle cap, the bottle cap with the opening downward cannot pass through the height gap, and the star wheel moves away from the upper surface of the conveying track under the thrust of the bottle cap with the opening downward, causing the sensing part on the movable mounting frame and the sensing device to move relative to each other, and after obtaining the sensing signal, the control system simultaneously controls the pressing mechanism to fix the bottle cap with the opening downward, controls the conveying track to stop, and restarts the production line after the bottle cap with the opening downward is manually removed, thereby realizing automatic identification of bottle caps placed in reverse, avoiding the production of defective products, avoiding the waste of semi-finished bottle caps, and ensuring the normal progress of subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure after the movable mounting frame rotates relative to the conveying track;

[0019] Figure 3 yes Figure 2 Schematic diagram of the side view. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1 and Figure 2, a bottle cap anti-reverse device of the present invention comprises: a conveying track 10, which is used to convey the bottle cap from one end thereof to the other end; a movable mounting frame 20, which is movably connected to the conveying track 10, and on which a star wheel 3 located above the conveying track 10 is rotatably arranged, and a height gap lower than the height of the bottle cap is provided between the lower end of the star wheel 3 and the upper surface of the conveying track 10, and the bottle cap with the opening facing upward can be pushed through the height gap when the star wheel 3 rotates; a sensing device 4 is provided on the conveying track 10, and a sensing member 5 cooperating with the sensing device 4 is provided on the movable mounting frame 20; a pressing mechanism 6, which is located on one side of the star wheel 3, and can press and fix the bottle cap located below the star wheel 3 on the conveying track 10; the movable mounting frame 20 can move relative to the conveying track 10 to make the sensing member 5 leave or enter the sensing area of ​​the sensing device 4; a control system, which is electrically connected to the conveying track 10, the pressing mechanism 6 and the sensing device 4, and is used to control the action of the pressing mechanism 6 and the conveying track 10.

[0022] When the bottle cap with the opening upward is transported on the conveying track 10, the bottle cap can drive the star wheel 3 to rotate, and the star wheel 3 can move the bottle cap through the height gap during the rotation; since the height gap is smaller than the height of the bottle cap, the bottle cap with the opening downward cannot pass through the height gap, and the star wheel 3 moves away from the upper surface of the conveying track 10 under the thrust of the bottle cap with the opening downward, causing the sensing member 5 and the sensing device 4 on the movable mounting frame 20 to move relative to each other. After obtaining the sensing signal, the control system simultaneously controls the pressing mechanism 6 to fix the bottle cap with the opening downward, controls the conveying track 10 to stop, and after the bottle cap with the opening downward is manually removed, the pressing mechanism 6 is reset, and then the conveying track 10 and the remaining equipment of the production line are restarted, thereby realizing automatic identification of bottle caps placed in reverse, avoiding the production of defective products, avoiding the waste of semi-finished bottle caps, and ensuring the normal progress of the subsequent processes.

[0023] See also Figure 1 and Figure 2 As a preferred embodiment of the present invention, the interior of the conveying track 10 is provided with a gas channel 11 extending along its length direction, and the upper surface of the conveying track 10 is evenly distributed along its length direction with a number of exhaust holes 12 connected to the gas channel 11 and having the same exhaust direction, and the gas channel 11 is connected to a gas supply device. The output end of the gas supply device provides high-pressure gas to the gas channel 11, and the high-pressure gas discharged from the exhaust hole 12 can push the bottle cap to be transported on the conveying track 10. The use of pneumatic transmission is conducive to improving the conveying efficiency of the bottle cap. Among them, the gas outlet direction of the exhaust hole 12 is inclined upward along the conveying direction of the bottle cap, and the component force of the high-pressure gas discharged from the exhaust hole 12 in the vertical direction can basically offset the gravity of the bottle cap, and the component force of the high-pressure gas discharged from the exhaust hole 12 in the horizontal direction can push the bottle cap to move forward.

[0024] See also Figure 1 and Figure 2 In some embodiments of the present invention, the conveying track 10 is provided with a plurality of gantry frames 70 for the bottle caps to pass through at intervals along its length direction, and an anti-slip fence 8 is respectively provided on the two inner sides of the gantry frame 70, and the distance between the two anti-slip fences 8 corresponds to the diameter of the bottle caps. The anti-slip fence 8 and the gantry frame 70 have a guiding effect on the movement of the bottle caps.

[0025] In some embodiments of the present invention, the pressing mechanism 6 is a cylinder fixed to the front side of the conveying track 10, and the extended end of the cylinder can press the bottle cap against the anti-slip fence 8 located at the rear side of the conveying track 10. Of course, in other embodiments, the pressing mechanism 6 can also be replaced by a motor-driven screw mechanism, a motor-driven gear rack mechanism, etc.

[0026] See also Figure 3 In some embodiments of the present invention, the gantry frame 70 includes a first vertical beam 71 fixed on the front side of the conveying track 10, a second vertical beam 72 fixed on the rear side of the conveying track 10, and a cross beam 73 with one end hinged on the second vertical beam 72 and the other end can be against the upper end of the first vertical beam 71, the movable mounting frame 20 includes an upper end plate fixed on the cross beam 73, the star wheel 3 is fixed on the upper end plate through a mounting seat, and the upper end plate is provided with a through hole 201 for the star wheel 3 to pass downward. When the star wheel 3 is lifted by the bottle cap with the opening downward, the upper end plate drives the cross beam 73 to rotate relative to the second vertical beam 72, and the induction member 5 moves away from or close to the induction device 4 following the movement of the upper end plate. In this embodiment, the sensing device 4 is a proximity sensor fixed on the front side of the conveying track 10, and the sensing member 5 is a metal member fixed on the movable mounting frame 20 and close to the proximity sensor. The metal member is a metal plate, which is fixed below the cross beam 73. The metal plate is provided with a second through hole for some of the gear teeth of the star wheel 3 to pass downward. When the star wheel 3 is lifted by the bottle cap with the opening downward, the upper end plate rotates relative to the second vertical beam 72 following the cross beam 73, and the sensing member 5 moves away from the sensing device 4 following the movement of the upper end plate. After receiving the signal, the control system can control the cylinder to press the bottle cap with the opening downward against the anti-slip fence 8 located at the rear side of the conveying track 10.

[0027] Preferably, the star wheel 3 is detachably connected to the mounting seat, and star wheels of different sizes can be replaced according to different bottle cap products to adjust the size of the height gap.

[0028] In order to be able to observe the transportation status of the bottle caps on the conveying track 10 from above the upper end plate, the upper end plate is preferably made of a transparent material, such as a glass plate or the like.

[0029] See also Figure 2 and Figure 3 As a preferred embodiment of the present invention, the movable mounting frame 20 is hinged on the conveying track 10 and can be flipped toward the rear side of the conveying track 10, and the sensing member 5 can follow the movement of the movable mounting frame 20 to leave or enter the sensing area of ​​the sensing device 4. Here, the sensing member 5 can follow the movement of the movable mounting frame 20 to leave the sensing area of ​​the sensing device 4. After the movable mounting frame 20 flips backward relative to the conveying track 10, most of the upper area of ​​the conveying track 10 is hollowed out, which is convenient for manual correction of bottle caps with downward openings.

[0030] Preferably, one bottle cap on the conveying track 10 corresponds to one gear tooth on the star wheel 3, and the horizontal distance between two adjacent gear teeth of the star wheel 3 is greater than the inner diameter of the bottle cap. When multiple bottle caps pass through the star wheel 3, the number of rotations of the star wheel 3 is small, so as to avoid the shaft of the star wheel 3 from being easily damaged. Preferably, a ball bearing is provided at the center of the shaft of the star wheel 2.

[0031] The above embodiments are only preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonably combining the technical solutions recorded in multiple embodiments. Those skilled in the art may also make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope set by the claims of this application.

Claims

1. A bottle cap anti-reverse device, characterized in that: include: A conveying track (10) for conveying bottle caps from one end thereof to the other end; A movable mounting frame (20) is movably connected to the conveying track (10), and a star wheel (3) is rotatably arranged on the mounting frame and is located above the conveying track (10). A height gap lower than the height of the bottle caps is provided between the lower end of the star wheel (3) and the upper surface of the conveying track (10). When the star wheel (3) rotates, the bottle caps with the opening facing upward can be pushed through the height gap. The conveying track (10) is provided with a sensing device (4), and the movable mounting frame (20) is provided with a sensing element (5) that matches the sensing device (4); A pressing mechanism (6) is located on one side of the star wheel (3) and can press and fix the bottle caps located below the star wheel (3) onto the conveying track (10); The movable mounting frame (20) can move relative to the conveying track (10) to enable the sensing element (5) to leave or enter the sensing area of ​​the sensing device (4); A control system, electrically connected to the conveying track (10), the pressing mechanism (6) and the sensing device (4), and used for controlling the actions of the pressing mechanism (6) and the conveying track (10); The conveying track (10) is provided with a gas channel (11) extending along its length direction inside, and a plurality of exhaust holes (12) connected to the gas channel (11) and having the same exhaust direction are evenly distributed on the upper surface of the conveying track (10) along its length direction, and the gas channel (11) is connected to a gas supply device; The movable mounting frame (20) is hinged on the conveying track (10) and can be flipped toward the rear side of the conveying track (10), and the sensing element (5) can follow the movement of the movable mounting frame (20) to leave or enter the sensing area of ​​the sensing device (4).

2. The bottle cap anti-reverse device according to claim 1, characterized in that: The conveying track (10) is provided with a plurality of gantry frames (70) for the bottle caps to pass through at intervals along its length direction. An anti-slip fence (8) is respectively provided on two inner side surfaces of the gantry frames (70). The distance between the two anti-slip fences (8) corresponds to the diameter of the bottle caps.

3. The bottle cap anti-reverse device according to claim 2, characterized in that: The pressing mechanism (6) is a cylinder fixed to the front side of the conveying track (10), and the protruding end of the cylinder can press the bottle cap onto the anti-slip fence (8) located on the rear side of the conveying track (10).

4. The bottle cap anti-reverse device according to claim 2, characterized in that: The gantry frame (70) comprises a first vertical beam (71) fixed on the front side of the conveying track (10), a second vertical beam (72) fixed on the rear side of the conveying track (10), and a cross beam (73) having one end hinged on the second vertical beam (72) and the other end capable of abutting against the upper end of the first vertical beam (71), the movable mounting frame (20) comprises an upper end plate fixed on the cross beam (73), the star wheel (3) is fixed on the upper end plate via a mounting seat, and the upper end plate is provided with a through hole (201) for the star wheel (3) to pass downward.

5. The bottle cap anti-reverse device according to claim 4, characterized in that: The upper end plate is made of a transparent material.

6. The bottle cap anti-reverse device according to claim 1, characterized in that: The sensing device (4) is a proximity sensor fixed on the front side of the conveying track (10), and the sensing component (5) is a metal component fixed on a movable mounting frame (20) and capable of approaching the proximity sensor.

7. The bottle cap anti-reverse device according to claim 1, characterized in that: A bottle cap on the conveying track (10) corresponds to a gear tooth on the star wheel (3), and the horizontal distance between two adjacent gear teeth of the star wheel (3) is greater than the inner diameter of the bottle cap.

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