Reel grabbing and overturning device

Abstract

The utility model provides a reel grabbing and overturning device. The reel grabbing and overturning device comprises an overturning mechanism, a supporting shaft, a normally-open three-finger air cylinder and a tensioning claw connected to the normally-open three-finger air cylinder. The supporting shaft is provided with a receding groove for the tensioning claw to pass through, the supporting shaft is connected to the turnover mechanism, and the supporting shaft is used for being inserted into a center hole of a reel. The normally-open three-finger air cylinder is arranged in the supporting shaft, when the normally-open three-finger air cylinder is not inflated, three fingers on the normally-open three-finger air cylinder are in an expanded state, and the normally-open three-finger air cylinder is used for driving the tensioning claw to retract in the axis direction of the supporting shaft through self-folding in the inflated state. Inclined teeth are arranged on the outer side surfaces of the tensioning claws and are used for holding the side wall of the central hole of the reel. According to the reel grabbing and overturning device, when a reel is grabbed and overturned, the reel can be prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco packaging equipment field, specifically speaking, relate to a reel grabbing and overturning device. BACKGROUND

[0002] The packaging machine material station is composed of a reel feeding unit and a reel automatic changing unit. The reel feeding unit identifies the reel distribution information on the tray, completes coordinate positioning, and completes grabbing by a grabbing device extending into the inner core of the reel. After moving to the installation position, the reel is pushed onto the specified installation shaft to complete automatic disc loading. This repeated cycle realizes uninterrupted supply of raw and auxiliary materials of the packaging machine. However, how to stably grab the flatly stacked reels on the tray and how to stably push them onto the installation shaft to avoid falling have become problems that must be solved in the full automation process of the packaging machine material station.

[0003] The utility model discloses a new type paper disc grabbing and conveying device in the authorized announcement No. CN214114143U discloses a new type paper disc grabbing and conveying device, including horizontal moving platform, Z direction lifting mechanism, upper arm, forearm and grabbing mechanism;Horizontal moving platform includes horizontal moving track and horizontal moving servo motor. Z direction lifting mechanism includes lifting track and lifting servo motor, and the lifting track is arranged on the horizontal moving track through the trolley and is driven to realize horizontal movement by the horizontal moving servo motor, and the tail end of the upper arm is arranged on the lifting track through the sliding support and is driven to realize vertical movement by the lifting servo motor. The tail end of the upper arm is horizontally articulated on the sliding support and is driven to realize horizontal rotation by the upper arm servo motor, and the tail end of the forearm is horizontally articulated on the front end of the upper arm and is driven to realize horizontal rotation by the forearm servo motor, and the upper arm and the forearm are horizontally arranged, and the grabbing mechanism includes the tensioning shaft fixed to the front end of the forearm and the laser positioning mechanism. The new type paper disc grabbing and conveying device has the advantages of high positioning accuracy, automatic disc carrying and improved automation degree. However, the structure disclosed by the new type paper disc grabbing and conveying device does not have the function of preventing the reel from falling accidentally when the air supply is interrupted. UTILITY MODEL CONTENTS

[0004] In order to avoid the reel from falling during the reel grabbing and overturning, the utility model adopts the following technical scheme: a reel grabbing and overturning device, comprising a overturning mechanism, a supporting shaft, a normally open three-finger air cylinder, and a tensioning claw connected to the normally open three-finger air cylinder.

[0005] The supporting shaft is connected to the overturning mechanism, and the supporting shaft is used for inserting into the center hole of the reel.

[0006] The normally open three-fingered cylinder is arranged inside the support shaft, and when not inflated, the three fingers on the normally open three-fingered cylinder are separated by the spring action of the fingers, and each finger is in an expanded state; the normally open three-fingered cylinder is used to retract the tension claw in the direction of the support shaft axis under the action of the three-fingered cylinder.

[0007] The outer side of the tension claw is provided with a diagonal tooth for holding the side wall of the center hole of the reel.

[0008] Based on the above, in order to facilitate the reel to be removed from the support shaft after reaching the specified position, a plurality of mounting grooves are provided on the support shaft, and the mounting grooves are arranged along the axis direction of the support shaft, and a plurality of steel ball bearings are arranged in the mounting grooves through a pressing strip.

[0009] The outer periphery of the steel ball bearing is arranged outside the outer periphery of the support shaft and is lower than the outer side of the tension claw in the tension state, so that the reel can be removed from the support shaft.

[0010] Based on the above, in order to facilitate the reel on the support shaft to be turned over, the turning mechanism comprises an upper connecting plate, a servo motor mounted on the upper connecting plate, a lower connecting plate rotatably connected to the servo motor, and a mounting seat plate connected to the lower connecting plate.

[0011] The top end of the support shaft is connected to the mounting seat plate.

[0012] Based on the above, in order to ensure that the normally open three-fingered cylinder is in an open state when not inflated, a fixed block connected to the mounting seat plate is arranged at the top of the normally open three-fingered cylinder, and a three-way quick connector and a one-way check valve are arranged on the fixed block.

[0013] One end of the one-way check valve is connected to one end of the three-way quick connector through a connecting joint and a gas connecting pipe, and the other end of the three-way quick connector forms an air vent.

[0014] Based on the above, in order to facilitate the reel to be pushed off the support shaft after reaching the specified position, a push plate cylinder is arranged on one side of the mounting seat plate, and a push plate is connected to the extension end of the push plate cylinder, and the push plate is used to push the reel off the support shaft.

[0015] Based on the above, in order to facilitate the guiding of the push plate, a pair of guide columns are arranged on the push plate, the guide columns are in sliding cooperation with the mounting seat plate, and the push plate cylinder is located between the pair of guide columns.

[0016] Based on the above, in order to facilitate the determination of the depth of the support shaft into the center hole of the reel, a stop ring for positioning the reel is arranged at the upper end of the support shaft.

[0017] Based on the above, in order to increase the friction and holding force, the tensioning claw includes a connecting handle connected with the normally open three-finger cylinder, and a tensioning head connected with the connecting handle, and the outer side of the tensioning head is provided with the inclined teeth.

[0018] The reel grabbing and overturning device has substantial features and progress compared with the prior art, specifically, the reel grabbing and overturning device is provided with the three-finger cylinder designed in a normally open state, the inclined teeth arranged on the contact surface between the tensioning block and the reel, and the one-way check valve communicated with the air vent through the gas connecting pipe, so that if the high-pressure air is disconnected when the machine is unexpectedly stopped or powered off during the reel grabbing and lifting process, the normally open three-finger cylinder is still in the open state and is kept, and the reel is fixed firmly under the double action of the spring, so that the equipment damage or personnel accidents caused by unexpected situations are avoided.

[0019] Meanwhile, the servo motor and the speed reducer are used to form the overturning mechanism, the lower connecting plate, the disc pushing cylinder, the push plate and the grabbing mechanism are driven to rotate as a whole, compared with the pneumatic rotation, stable and accurate angle control under heavy load can be realized, and the overturning direction angle is stable and controllable. When the center of the paper disc has an inclination angle, a certain flexibility can be achieved.

[0020] Further, the three rows of evenly distributed ball bearings are arranged on the outer surface of the supporting shaft, the friction force of the reel in the axial direction is changed from sliding friction to rolling friction, so that the driving force requirement of the disc pushing cylinder is greatly reduced, and the disc pushing cylinder is convenient for pushing the push plate to push the reel on the reel placing shaft.

[0021] Therefore, the reel grabbing and overturning device can avoid the reel falling phenomenon during the reel grabbing and overturning, improve the stability of the reel grabbing, and realize stable overturning and stable pushing of the reel to the mounting shaft. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the overall structure of the reel grabbing and overturning device provided by the utility model.

[0023] Figure 2 is a schematic view of the supporting shaft structure in the reel grabbing and overturning device provided by the utility model.

[0024] Figure 3 is a schematic view of the self-centering circular cylinder and the tensioning claw assembly structure in the reel grabbing and overturning device provided by the utility model.

[0025] Figure 4 is a schematic view of the tensioning claw cross-section structure in the reel grabbing and overturning device provided by the utility model.

[0026] In the figure: 1, servo motor; 2, upper connecting plate; 3, reinforcing plate; 4, push disc cylinder; 5, guide column; 6, push plate; 7, steel ball bearing; 8, pressing strip; 9, tensioning claw; 10, supporting shaft; 11, check ring; 12, mounting seat plate; 13, lower connecting plate; 14, speed reducer; 15, guide plate; 16, three-way quick plug connector; 17, fixed block; 18, normally open three-fingered cylinder; 19, one-way check valve; 20, connecting joint; 21, air vent; 22, gas connecting pipe; 23, tensioning head; 24, oblique tooth; 25, mounting groove; 26, connecting handle. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described in further detail below through specific embodiments.

[0028] Embodiment 1

[0029] The embodiment provides a reel grabbing and overturning device, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , which comprises an overturning mechanism, a supporting shaft 10, a normally open three-fingered cylinder 18, and three tensioning claws 9 connected to the normally open three-fingered cylinder 18.

[0030] The supporting shaft 10 is provided with a gap slot for the tensioning claws 9 to pass through. The supporting shaft 10 is connected to the overturning mechanism. The supporting shaft 10 is used for being inserted into a center hole of a reel. The bottom of the supporting shaft 10 is provided with a guide plate 15, so that the guide plate 15 can be used for guiding when the supporting shaft 10 is inserted into the center hole of the reel.

[0031] The normally open three-fingered cylinder 18 is arranged inside the supporting shaft 10, and when not inflated, the three fingers on the normally open three-fingered cylinder 18 are separated from each other under the action of the spring of the normally open three-fingered cylinder 18, and the three fingers are in an expanded state. The normally open three-fingered cylinder 18 is used for driving the tensioning claws 9 to retract towards the axis direction of the supporting shaft 10 under the action of the normally open three-fingered cylinder 18 in an inflated state.

[0032] The outer side of the tensioning claw 9 is provided with an oblique tooth 24, and the oblique tooth 24 is used for holding the side wall of the center hole of the reel.

[0033] Specifically, the oblique tooth 24 is directed obliquely upwards, and the angle is preferably 60°, which is used for increasing the friction with the inner core of the reel material.

[0034] Specifically, as shown in Figure 1As shown, in order to facilitate the turning of the reel on the support shaft 10, the turning mechanism comprises an upper connecting plate 2, a servo motor 1 and a reducer 14 installed on the upper connecting plate 2, a lower connecting plate 13 rotatably connected to the servo motor 1, and a mounting seat plate 12 connected to the lower connecting plate 13. The top end of the support shaft 10 is connected to the mounting seat plate 12. A reinforcing plate 3 is also arranged on the upper connecting plate 2 to increase the structural strength.

[0035] In this embodiment, in order to ensure that the normally open three-fingered cylinder is in an open state when not inflated, a fixed block 17 connected to the mounting seat plate 12 is arranged at the top of the normally open three-fingered cylinder 18. A three-way quick connector 16 and a one-way check valve 19 are arranged on the fixed block 17.

[0036] One end of the one-way check valve 19 is connected to one end of the three-way quick connector 16 through a connecting joint 20 and a gas connecting pipe 22, and the other end of the three-way quick connector 16 forms an air vent 21.

[0037] Specifically, when performing a grabbing action, the air vent 21 is inflated, the three fingers of the normally open three-fingered cylinder 18 are retracted to the center under the action of the gas pressure, and in turn drive the tensioning claws 9 to retract toward the center. Subsequently, the whole reel grabbing and turning device moves downward, so that the support shaft 10 extends into the center hole of the reel.

[0038] When the support shaft 10 reaches a specified depth, the three fingers of the normally open three-fingered cylinder 18 are spread out, and under the action of the normally open three-fingered cylinder 18, the three tensioning claws 9 extend and tightly press on the inner core of the reel, thereby grabbing the reel.

[0039] Embodiment 2

[0040] The embodiment provides a reel grabbing and turning device, and the main difference between the embodiment and embodiment 1 is that, in the embodiment, in order to facilitate the dismounting of the reel from the support shaft 10 after reaching a specified position, a plurality of mounting grooves 25 are arranged on the support shaft 10. The plurality of mounting grooves 25 are arranged along the axial direction of the support shaft 10. A plurality of steel ball bearings 7 are arranged in the mounting grooves 25 through pressing strips 8.

[0041] The outer circumferential surface of the plurality of steel ball bearings 7 protrudes from the outer circumferential surface of the support shaft 10, so that the reel can be dismounted from the support shaft. In order to facilitate the determination of the depth of the support shaft into the center hole of the reel, a stop ring 11 for positioning the reel is arranged at the upper end of the support shaft 10.

[0042] Embodiment 3

[0043] The embodiment provides a reel grabbing and overturning device, and the main difference from the embodiment 1 is that, in the embodiment, in order to facilitate pushing the reel off the supporting shaft after reaching the designated position, a push reel cylinder 4 is arranged on one side of the mounting base plate 12. The telescopic end of the push reel cylinder 4 is connected with a push plate 6, and the push plate 6 is used for pushing the reel off the supporting shaft 10.

[0044] Embodiment 4

[0045] The embodiment provides a reel grabbing and overturning device, and the main difference from the embodiment 1 is that, in the embodiment, in order to facilitate guiding the push plate, a pair of guide columns 5 are further arranged on the push plate 6 and are in sliding fit with the mounting base plate 12. The push reel cylinder 4 is located between the pair of guide columns 5.

[0046] Embodiment 5

[0047] The embodiment provides a reel grabbing and overturning device, and the main difference from the embodiment 1 is that, in the embodiment, in order to increase the friction and holding force, the tensioning claw 9 comprises a connecting handle 26 connected with the normally-open three-fingered cylinder 18 and a tensioning head 23 connected with the connecting handle 26. The outer side of the tensioning head 23 is provided with the inclined teeth 24.

[0048] Specifically, the reel grabbing and overturning device provided by the utility model has the following specific working steps:

[0049] Firstly, the material station sends a demand signal of the reel auxiliary material, and then the executive mechanism drives the reel grabbing and overturning device to reach the designated position.

[0050] Then, the air inlet 21 is inflated, the normally-open three-fingered cylinder 18 is retracted to the center, the tensioning block 9 is driven to move, the tooth-shaped surface of the tensioning block 9 is completely below the outer circular surface of the supporting shaft 10. Then the reel grabbing and overturning device is driven to move downward by the servo cylinder until the supporting shaft 10 passes through the center hole of the reel, then the normally-open three-fingered cylinder 18 is extended to the outside, so that the tensioning block 9 tightly fixes the reel and keeps.

[0051] After being lifted to the designated height, the servo motor 1 drives the overturning mechanism to overturn the reel from parallel to the ground to the vertical state. When reaching the concentric position with the reel placing shaft, the normally-open three-fingered cylinder 18 is retracted, and the tensioning block 9 is separated from the reel.

[0052] Since the outer surface of the supporting shaft 10 is provided with three rows of uniformly distributed ball bearings 7, the friction of the reel in the axial direction can be changed from sliding friction to rolling friction, so that the driving force requirement of the push reel cylinder 4 is greatly reduced. The reel is pushed and placed on the reel placing shaft by the push plate 6 driven by the push reel cylinder 4. Finally, the push reel cylinder 4 and the normally-open three-fingered cylinder 18 return to the initial position.

[0053] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones without departing from the spirit of the present application. They should all be covered in the technical solution range of the present application claimed.

Claims

1. A reel grab flipper device, characterized by: The device comprises a turnover mechanism, a supporting shaft, a normally open three-fingered cylinder, and a tension claw connected to the normally open three-fingered cylinder. The supporting shaft is provided with a gap slot for the tension claw to pass through, and the supporting shaft is connected to the turnover mechanism and is used for being inserted into a center hole of a reel. The normally open three-fingered cylinder is arranged inside the supporting shaft, and three fingers of the normally open three-fingered cylinder are in an expanded state when not inflated, and the normally open three-fingered cylinder is used for driving the tension claw to retract towards the axis of the supporting shaft in an inflated state. The outer side surface of the tension claw is provided with a diagonal tooth for holding the side wall of the center hole of the reel.

2. The reel grab flipper device of claim 1, wherein: The supporting shaft is provided with a plurality of mounting grooves arranged along the axis of the supporting shaft, and a plurality of steel ball bearings are arranged in the mounting grooves through a pressing strip. The outer circumferential surface of the steel ball bearings protrudes from the outer circumferential surface of the supporting shaft and is lower than the outer side surface of the tension claw in a tension state, so that the reel can be removed from the supporting shaft.

3. A reel grab flipper device according to claim 1 or 2, characterised in that: The turnover mechanism comprises an upper connecting plate, a servo motor arranged on the upper connecting plate, a lower connecting plate rotatably connected to the servo motor, and a mounting seat plate connected to the lower connecting plate. The top end of the supporting shaft is connected to the mounting seat plate.

4. The reel grab flipper apparatus of claim 3, wherein: The top of the normally open three-fingered cylinder is provided with a fixing block connected to the mounting seat plate, and the fixing block is provided with a three-way quick connector and a one-way check valve. One end of the one-way check valve is connected to one end of the three-way quick connector through a connecting joint and a gas connecting pipe, and the other end of the three-way quick connector forms an air vent.

5. The reel grab flipper apparatus of claim 3, wherein: One side of the mounting seat plate is provided with a push plate cylinder, and the push plate cylinder is connected to a push plate at the extension end.

6. The reel grab flipper apparatus of claim 5, wherein: The push plate is further provided with a pair of guide columns which are in sliding cooperation with the mounting seat plate, and the push plate cylinder is located between the pair of guide columns.

7. A reel grab flipper device according to claim 1 or 2, characterised in that: The upper end of the supporting shaft is provided with a stop ring for positioning the reel.

8. The reel grab flipper device of claim 7, wherein: The tension claw comprises a connecting handle connected to the normally open three-fingered cylinder, and a tension head connected to the connecting handle, and the outer side surface of the tension head is provided with the diagonal tooth.

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