Cover opening device with stop mechanism

Abstract

The present invention discloses a capping device with a stopper mechanism, comprising: a cap supporting plate, a capping star wheel provided on the cap supporting plate, a plurality of capping notches spaced apart on the outer edge of the capping star wheel, a guide plate provided on the cap supporting plate outside the capping star wheel, the two ends of the guide plate being respectively a cap feeding station and a cap discharging station, a cap channel extending to the cap supporting plate, and the bottle caps at the cap channel outlet can fall into each capping notch rotated to the cap feeding station, a stopper mechanism being provided at the position of each capping notch, the structure of each stopper mechanism comprising: a blocking groove provided on the top of the capping star wheel at the position of the capping notch, a stopper baffle provided in the blocking groove, and a stopper protrusion provided on the outer wall of the stopper baffle, each stopper protrusion being able to be blocked on the cover body of the bottle cap. The advantages of the present invention are: effectively preventing the bottle cap from rotating, thereby enabling the bottle cap to be positioned in correspondence with the bottle mouth during capping, thereby greatly improving the accuracy of capping and capping.

Description

Technical Field

[0001] The present invention relates to the technical field of capping machines, in particular to a capping device in a capping machine. Background Art

[0002] The capping device in the capping machine is used to continuously transfer the bottle caps from the capping channel to the bottom of the capping head, so that the capping head in the capping machine can grab the bottle caps.

[0003] The structure of the capping device in the capping machine includes: a cap supporting plate, a capping star wheel which can rotate on the cap supporting plate is provided on the cap supporting plate, a plurality of capping notches are arranged at intervals on the circumferential direction of the edge of the capping star wheel, a circular arc-shaped guide plate is provided on the cap supporting plate outside the capping star wheel, the gap between the guide plate and the capping notch just accommodates a bottle cap, the two ends of the guide plate are respectively a cap feeding station and a cap discharging station, a cap channel extends from the outside to the cap supporting plate, the outlet of the cap channel is located at the cap feeding station, the caps at the outlet of the cap channel can fall into each cap discharging notch rotated to the cap feeding station position, the cap discharging star wheel rotates on the cap supporting plate to drive the cap discharging notch to drive the bottle cap therein to move from the cap feeding station to the cap discharging station under the guidance of the guide plate.

[0004] The aforementioned capping device has the following drawbacks: as the bottle cap moves along the guide plate, friction is generated between the guide plate and the bottle cap, which can easily cause the bottle cap to rotate during movement. Once the bottle cap, which requires positioning relative to the bottle mouth, rotates, it cannot be positioned on the bottle mouth, thus affecting capping efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a cap-lifting device with a stopping mechanism, which can effectively prevent the bottle cap from rotating during movement.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cap-prying device with a stopping mechanism, comprising: a cap-supporting plate, a cap-prying star wheel is provided on the cap-supporting plate, a plurality of cap-prying notches which can just accommodate a bottle cap and can pry the bottle cap for movement are provided at intervals on the circumference of the outer edge of the cap-prying star wheel, and a circular arc-shaped guide plate is provided on the cap-supporting plate outside the cap-prying star wheel, and the two ends of the guide plate are respectively a cap-feeding station and a cap-discharging station, the cap-prying star wheel can rotate on the cap-supporting plate from the cap-feeding station to the cap-discharging station, the cap channel extends from the outside to the cap-supporting plate, and the outlet of the cap channel is located at the cap-feeding station The bottle cap at the cap channel outlet can fall into each cap-push notch that rotates to the cap feeding station, and a rotation-stopping mechanism is provided at the position of each cap-push notch to prevent the bottle cap from rotating, and the structure of each rotation-stopping mechanism comprises: the top of the cap-push star wheel at the cap-push notch position is recessed downward to form a blocking groove, and a rotation-stopping baffle is provided in the blocking groove, and the rotation-stopping baffle is elastically connected to the blocking groove; the rotation-stopping baffle is provided with a plurality of rotation-stopping protrusions protruding outward on the outer wall of one side of the guide plate, and each rotation-stopping protrusion on the rotation-stopping baffle can be blocked on the cover body of the bottle cap in the bottle cap notch.

[0007] Furthermore, in the aforementioned cap-prying device with a stopping mechanism, each cap-prying notch is formed by an inward depression of the outer edge of the cap-prying star wheel, and each cap-prying notch includes a recessed portion, with a driving portion and a connecting portion respectively provided at both ends of the recessed portion. The driving portion and the recessed portion are in an arc shape that matches the outer wall of the bottle cap, and a bottle cap can be accommodated just between the recessed portion and the guide plate. The driving portion guards the rear side of the bottle cap in the rotation direction of the cap-prying star wheel so as to drive the bottle cap to move. The connecting portion is connected between the recessed portion and the outer edge of the cap-prying star wheel, and the distance between the connecting portion and the guide plate gradually narrows along the rotation direction of the cap-prying star wheel.

[0008] Furthermore, the aforementioned cover-opening device with a stopping mechanism, wherein the elastic blocking connection structure between the anti-rotation baffle and the blocking groove includes: one end of the anti-rotation baffle close to the driving part is hinged to the cover-opening star wheel in the blocking groove through a hinge shaft, and a compression spring is arranged between the anti-rotation baffle and the cover-opening star wheel, and the compression spring always has the tendency to make the end of the anti-rotation baffle close to the connecting part swing around the hinge axis in the direction of the guide plate, and the outer end part of the blocking groove of the anti-rotation baffle close to the connecting part is provided with a groove stopper for blocking the anti-rotation baffle, and the setting position of the groove stopper ensures that there is room for swinging in the blocking groove of the end of the anti-rotation baffle close to the connecting part.

[0009] Furthermore, in the aforementioned cover-opening device with a stopping mechanism, a limiting pin is provided on the cover-opening star wheel near the outer side of one end of the connecting part in each blocking groove, and a pin cap is provided on the top of the limiting pin, which is blocked on the top of the anti-rotation baffle near one end of the connecting part.

[0010] Furthermore, in the aforementioned cover-opening device with a stopping mechanism, two anti-rotation protrusions are provided.

[0011] Furthermore, in the aforementioned cover-opening device with a stopping mechanism, each anti-rotation protrusion is serrated, and the head of the anti-rotation protrusion is rounded.

[0012] The advantages of the present invention are: simple and ingenious structure, can effectively prevent the bottle cap from rotating during the rotational movement, thereby realizing the positioning of the bottle cap corresponding to the position of the bottle mouth during capping, and greatly improving the accuracy of grabbing the cap, thereby effectively improving the capping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the cover-pushing device with a stopping mechanism according to the present invention.

[0014] Figure 2 yes Figure 1 Enlarged structural diagram of the stop rotation mechanism.

[0015] Figure 3 It is a schematic diagram of the installation structure of the anti-rotation baffle. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0017] like Figure 1 、 Figure 2 、 Figure 3 As shown, the cap-prying device with a stopper mechanism comprises: a cap-supporting plate 1, on which is provided a cap-prying star wheel 2 that can rotate on the cap-supporting plate 1, and a plurality of cap-prying notches 4 that can just accommodate a bottle cap 3 and can move the bottle cap 3 are provided at intervals along the circumference of the outer edge of the cap-prying star wheel 2. The notches 4 are each spaced apart and can just accommodate a bottle cap 3 and can move the bottle cap 3. A circular arc-shaped guide plate 5 is provided on the cap-supporting plate 1 outside the cap-prying star wheel 2, and the two ends of the guide plate 5 are respectively located at a cap-feeding station 51 and a cap-discharging station 52. The cap-prying star wheel 2 can rotate on the cap-supporting plate 1 from the cap-feeding station 51 to the cap-discharging station 52. A cap channel 6 extends from the outside to the cap-supporting plate 1, and the outlet of the cap channel 6 is located at the cap-feeding station 51. The bottle cap 3 at the outlet of the cap channel 6 can fall into each cap-prying notch 4 that rotates to the cap-feeding station 51.

[0018] Each cap-pushing notch 4 is provided with a rotation-stop mechanism to prevent the bottle cap 3 from rotating. In this embodiment, each rotation-stop mechanism comprises: the top of the cap-pushing star wheel 2 at the cap-pushing notch 4 is recessed downward to form a retaining groove 7, and a retaining plate 8 is disposed within the retaining groove 7. The retaining plate 8 is elastically connected to the retaining groove 7. The retaining plate 8 is provided with a plurality of outwardly protruding rotation-stopping protrusions 81 on the outer wall of the guide plate 5. Each rotation-stopping protrusion 81 on the retaining plate 8 can retain the cover of the bottle cap 3 in the cap notch 4. In this embodiment, the retaining plate 8 is provided with two rotation-stopping protrusions 81, which effectively prevent the bottle cap 3 from rotating. Each rotation-stopping protrusion 81 is serrated, with a rounded head. In this embodiment, both the rotation-stopping plate 8 and the rotation-stopping protrusion 81 are made of stainless steel.

[0019] Each cap-prying notch 4 is formed by an inward depression on the outer edge of the cap-prying star wheel 2. Each cap-prying notch 4 includes a recess 41, with a driving portion 42 and a connecting portion 43 disposed at either end. The driving portion 42 and recess 41 are arc-shaped, matching the outer wall of the bottle cap 3. The recess 41 and the guide plate 5 can accommodate just one bottle cap 3. The driving portion 42 protects the rear side of the bottle cap 3 in the direction of rotation of the cap-prying star wheel 2, thereby driving the bottle cap 3 to move. The connecting portion 43 connects between the recess 41 and the outer edge of the cap-prying star wheel 2, and the distance between the connecting portion 43 and the guide plate 5 gradually narrows along the direction of rotation of the cap-prying star wheel 2.

[0020] Specifically, the elastic blocking connection structure between each anti-rotation baffle 8 and the blocking groove 7 includes: the end of the anti-rotation baffle 8 near the driving portion 42 is hinged to the cap-pumping star wheel 2 in the blocking groove 7 via a hinge shaft 82; a compression spring 9 is provided between the anti-rotation baffle 8 and the cap-pumping star wheel 2, and the compression spring 9 always has a tendency to swing the end of the anti-rotation baffle 8 near the connecting portion 43 around the hinge shaft 82 toward the guide plate 5; the outer end of the blocking groove 7 near the connecting portion 43 of the anti-rotation baffle 8 is provided with a groove stopper 71 for blocking the anti-rotation baffle 8, and the position of the groove stopper 71 ensures that the end of the anti-rotation baffle 8 near the connecting portion has room to swing in the blocking groove 7. The structure in which the end of the anti-rotation baffle 8 near the connecting portion 43 can swing well can effectively overcome errors, such as bottle cap size error, installation error, etc., thereby ensuring that the anti-rotation protrusion 81 on the anti-rotation baffle 8 can be reliably blocked on the bottle cap body.

[0021] A limit pin 10 is provided on the cover-opening star wheel 2 on the outer side of each retaining groove 7 near the end of the connecting portion 43. The head of the limit pin 10 is a pin cap 101, which is retained on the top of the anti-rotation baffle 8 near the end of the connecting portion. Since the anti-rotation baffle 8 is relatively thin, the retention of the pin cap 101 can effectively prevent the swinging end of the anti-rotation baffle 8 from tilting and deforming.

[0022] The operating principle is as follows: The capping star wheel 2 rotates on the cap supporting plate 1, and bottle caps exiting the capping channel 6 fall into each capping notch 4 that has moved to the cap feeding station 51. The anti-rotation protrusions 81 on the anti-rotation baffle 8 located at the capping notch 4 engage the cap body of the bottle cap 3. Driven by the drive unit 42 and guided by the guide plate 5, the bottle caps 3 in the capping notch 4 move along with the capping star wheel 2 to the cap discharging station 52. The anti-rotation protrusions 81 effectively overcome the friction of the guide plate 5 on the bottle caps 3, preventing the bottle caps 3 in the capping notch 4 from rotating. This significantly improves the capping efficiency for bottle caps that require alignment with the bottle mouth.

[0023] The advantages of the present invention are: simple and ingenious structure, can effectively prevent the bottle cap 3 from rotating during the rotational movement, thereby realizing the positioning of the bottle cap corresponding to the position of the bottle mouth during capping, and greatly improving the accuracy of grabbing the cap, thereby effectively improving the capping efficiency.

Claims

1. A cover-opening device with a stop mechanism, comprising: The cover supporting plate is provided with a cover-push star wheel, and a plurality of cover-push notches which can just accommodate a bottle cap and can push the bottle cap to move are arranged at intervals on the circumference of the outer edge of the cover-push star wheel. A section of circular arc-shaped guide plate is provided on the cover supporting plate outside the cover-push star wheel, and the two ends of the guide plate are respectively a cover-feeding station and a cover-discharging station. The cover-push star wheel can rotate from the cover-feeding station to the cover-discharging station on the cover supporting plate, and the cover channel extends from the outside to the cover supporting plate, and the outlet of the cover channel is located at the cover-feeding station. The bottle cap at the outlet of the cover channel can fall into each cover-push notch which rotates to the cover-feeding station. The notch is characterized in that: a rotation-stopping mechanism is provided at the position of each notch for shifting the cap, and the structure of each rotation-stopping mechanism includes: the top of the star wheel for shifting the cap at the notch is depressed downward to form a blocking groove, a rotation-stopping baffle is provided in the blocking groove, and the rotation-stopping baffle is elastically connected to the blocking groove; a plurality of rotation-stopping protrusions protruding outward are provided on the outer wall of the guide plate on one side, and each rotation-stopping protrusion on the rotation-stopping baffle can be blocked on the cover body of the bottle cap in the notch of the bottle cap; each notch for shifting the cap is formed by the notch for shifting the cap The outer edge of the star wheel is concave inward, and each cap-prying notch includes a recessed portion. A driving portion and a connecting portion are respectively provided at both ends of the recessed portion. The driving portion and the recessed portion are in an arc shape that matches the outer wall of the bottle cap. A bottle cap can be accommodated just between the recessed portion and the guide plate. The driving portion guards the rear side of the bottle cap in the rotation direction of the cap-prying star wheel so as to drive the bottle cap to move. The connecting portion is connected between the recessed portion and the outer edge of the cap-prying star wheel, and the spacing between the connecting portion and the guide plate gradually narrows along the rotation direction of the cap-prying star wheel. The anti-rotation baffle and the card The elastic blocking connection structure between the blocking grooves includes: one end of the anti-rotation baffle close to the driving part is hinged to the cover-opening star wheel in the blocking groove through a hinge shaft, and a compression spring is arranged between the anti-rotation baffle and the cover-opening star wheel. The compression spring always has the tendency to make the end of the anti-rotation baffle close to the connecting part swing around the hinge axis in the direction of the guide plate. The outer end part of the blocking groove of the anti-rotation baffle close to the connecting part is provided with a groove stopper for blocking the anti-rotation baffle. The setting position of the groove stopper ensures that there is room for swinging in the blocking groove of the end of the anti-rotation baffle close to the connecting part.

2. The cover-opening device with a stopper mechanism according to claim 1, characterized in that: A limit pin is provided on the cover-pushing star wheel outside one end of each blocking groove close to the connecting part, and a pin cap is provided on the top of the limit pin, which is blocked on the top of the anti-rotation baffle close to one end of the connecting part.

3. The cover-opening device with a stopper mechanism according to claim 1 or 2, characterized in that: There are two anti-rotation protrusions.

4. The cover-opening device with a stopper mechanism according to claim 3, characterized in that: Each anti-rotation protrusion is serrated, and the head of the anti-rotation protrusion is rounded.

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