CN211197797U

CN211197797U - Transmission star wheel

Info

Publication number: CN211197797U
Application number: CN201921613793.9U
Authority: CN
Inventors: 蒋日东; 栾慰林
Original assignee: Jiangsu Newamstar Packagin Machinery Co Ltd
Current assignee: Jiangsu Xinmeixing Industrial Research Institute Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-08-07
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a transmission star wheel, which comprises a star wheel body, wherein a plurality of star wheel clamping grooves are arranged at intervals on the outer edge of the star wheel body, each star wheel clamping groove is at least stacked and provided with a clamping block, each clamping block is provided with a clamping block clamping groove for clamping a container, and each clamping block clamping groove of each clamping block is in a clamping state capable of clamping the container or in a non-clamping state incapable of clamping the container; every clamp splice draw-in groove that is in the joint state all radially outwards protrusion in the star gear draw-in groove that corresponds at the star gear body, and the container can block into to every star gear draw-in groove department be in the joint state, and in the most outside convex clamp splice draw-in groove, every clamp splice draw-in groove that is in non-joint state all can not interfere corresponding star gear draw-in groove and all the other clamp splice draw-in grooves that are in the joint state of this star gear draw-in groove department. The utility model has the advantages that: a transmission star gear can carry the container of multiple specification and dimension, and it is convenient to switch, simple structure, effective reduction in production cost.

Description

Transmission star wheel

Technical Field

The utility model relates to a container conveying equipment technical field, concretely relates to transmission star gear.

Background

In beverage filling lines, a transfer starwheel conveyor is a relatively common conveyor used to transport containers. The container generally comprises: bottles, jars, buckets, and the like. The structure of a transfer starwheel in a transfer starwheel transport mechanism comprises: the star wheel body of ring shape, the even interval is provided with a plurality of inside concave recesses, the star wheel draw-in groove that is used for joint container on the outward flange of star wheel. During operation, the star wheel draw-in groove on the transmission star wheel among the filling line can both joint container, and the container that needs to carry can be gone into by the card and to be gone into the star wheel draw-in groove, and under rotary driving mechanism's drive, rotatory transmission star wheel can be carried the container that the card was gone backward in the star wheel draw-in groove to the station.

The transfer starwheel of the above-mentioned structure has the following drawbacks: the star wheel pockets on a transfer star wheel can usually only be used for transporting containers of one size that fit the star wheel pockets, however, with the development of diversification of containers, a filling line usually carries out filling and transporting of containers of different sizes. This requires, on the one hand, the production of transfer starwheels with starwheel pockets adapted to the containers of the respective format, and, on the other hand, the need to replace all the transfer starwheels in the entire production line and to readjust them into position. Frequent replacement of the transmission star wheel wastes time and labor, so that the production efficiency is reduced, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve is: the utility model provides a transmission star gear, its transport that can be applicable to the container of multiple specification and dimension to can avoid frequently changing the transmission star gear, improve production efficiency, reduction in production cost.

In order to solve the above problem, the utility model adopts the following technical scheme: the transmission star wheel comprises a star wheel body, wherein a plurality of star wheel clamping grooves used for clamping containers are arranged at the outer edge of the star wheel body at intervals, at least one clamping block is stacked at each star wheel clamping groove, each clamping block is provided with a clamping block clamping groove used for clamping the containers, and each clamping block can drive the corresponding clamping block clamping groove to move relative to the star wheel clamping groove until each clamping block clamping groove is in a clamping state capable of clamping the containers or in a non-clamping state incapable of clamping the containers; the switching of each clamping block clamping groove in a clamping state or a non-clamping state is driven and locked by a switching device; every clamp splice draw-in groove that is in the joint state all radially outwards protrusion in the star gear draw-in groove that corresponds at the star gear body, and the container can block into to every star gear draw-in groove department be in the joint state, and in the most outside convex clamp splice draw-in groove, every clamp splice draw-in groove that is in non-joint state all can not interfere corresponding star gear draw-in groove and all the other clamp splice draw-in grooves that are in the joint state of this star gear draw-in groove department.

Further, a radial displacement guide mechanism capable of guiding the clamping blocks to translate along the radial direction of the star wheel body is arranged between each clamping block and the star wheel body, and under the driving of the switching driving device, each clamping block can be guided by the radial displacement guide mechanism to translate along the radial direction of the star wheel body outwards until clamping block clamping grooves on the clamping blocks are in a clamping state, or each clamping block can be guided to translate inwards along the radial direction of the star wheel body until the clamping block clamping grooves on the clamping blocks are in a non-clamping state; the clamping blocks located at the same star wheel clamping groove are the same group of clamping blocks, and the star wheel clamping groove and each clamping block clamping groove at each star wheel clamping groove are the same group of clamping grooves.

Furthermore, in the transmission star wheel, each star wheel clamping groove and each clamping block clamping groove are arc-shaped and are recessed inwards, the star wheel clamping groove and the clamping block clamping groove at each star wheel clamping groove are a group of clamping grooves, each group of clamping grooves is far away from the star wheel clamping groove in the height direction, and the radius of each clamping groove is reduced in sequence; clamping block clamping grooves in a clamping state in the group of clamping grooves are coaxial with the star wheel clamping grooves.

Still further, each group of clamping blocks is sequentially overlapped above the star wheel body corresponding to the star wheel clamping groove from bottom to top.

Further, the aforementioned transfer starwheel, wherein the radial displacement guide mechanism is configured to include: all seted up the guide way on every clamp splice, the guide way on every clamp splice is all seted up along the radial of star gear body, all is provided with the guiding axle in the guide way of the same group clamp splice of every star gear draw-in groove department, and the guiding axle is fixed to be set up on the star gear body.

Furthermore, in the aforementioned transmission star wheel, two guide shafts are respectively disposed in the guide grooves of the same group of clamping blocks, a rolling sleeve is disposed on each guide shaft, and the rolling sleeve on each guide shaft can freely rotate.

Furthermore, the transfer starwheel of the preceding paragraph, wherein the switching means comprises: a switching drive mechanism and a locking mechanism;

the switching drive mechanism includes: each clamping block in each group of clamping blocks is provided with a driving groove, one clamping block positioned at the topmost part of the star wheel body in each group of clamping blocks is a top clamping block, a clamping block between the top clamping block and the star wheel body is a middle clamping block, the driving groove on the top clamping block is a top driving groove, the driving groove on the middle clamping block is a middle driving groove, and the top driving groove and each middle driving groove are strip-shaped inclined grooves which extend from the center of the star wheel body to the outer edge direction of the star wheel body and deviate from the radial arrangement; the driving grooves of the clamping blocks in the same state in one group of clamping blocks are aligned up and down.

A positioning disc is movably arranged in an inner hole of the star wheel body, a driving disc is fixedly arranged above the positioning disc, a plurality of driving shafts are arranged at the bottom of the driving disc at intervals, the driving shafts are all positioned on the outer side of the positioning disc, each driving shaft is correspondingly matched with one group of clamping blocks, and each driving shaft can extend into a corresponding top driving groove or can extend into each middle driving groove which is aligned with and communicated with the top driving groove through the top driving groove; the driving shaft in the driving groove is blocked by the two side edges of the driving groove.

The driving discs are rotated back and forth, the positioning discs and each driving shaft can be driven to rotate back and forth, in the rotating process of each driving shaft, the driving shaft extending into the top driving groove can independently drive the top clamping block to move inwards along the radial translation of the star wheel body to the clamping block clamping groove on the top clamping block to be in a non-clamping state through the top driving groove, or independently drive the top clamping block to move outwards to the clamping block clamping groove on the top clamping block to be in a clamping state; the driving shaft of the middle driving groove, which is stretched by the top driving groove, is aligned with the top driving groove and is communicated with the top driving groove, can drive the top clamping block and the stretched middle clamping block to synchronously and radially translate inwards along the star wheel body through the top driving groove and the stretched middle driving groove until the clamping block clamping grooves of the top clamping block and the stretched middle clamping block are in a non-clamping state or drive the top clamping block and the stretched middle clamping block to synchronously and radially translate outwards along the star wheel body until the clamping block clamping grooves of the top clamping block and the stretched middle clamping block are in a clamping state; the locking mechanism can lock clamping block clamping grooves in the clamping state and the non-clamping state in each group of clamping blocks.

Still further, the transfer starwheel as described above, wherein the locking mechanism comprises: a plurality of groups of locking holes are arranged on the star wheel body at intervals, each group of locking holes comprises a first locking hole and a second locking hole, and one group of locking holes corresponds to one group of clamping grooves; each middle clamping block in each group of clamping blocks is provided with a middle positioning hole, and the top driving groove and each middle driving groove of each group of clamping blocks are inclined towards the direction of the second locking hole from the corresponding first locking hole; the middle positioning hole on the middle clamping block with each clamping block clamping groove in the clamping state is positioned right above the second locking hole; when the clamping block clamping grooves in each group of clamping blocks are in a clamping state, each driving shaft can extend into the corresponding first locking hole through the corresponding top driving groove and each middle driving groove, so that the clamping block clamping grooves on the clamping blocks are locked in the clamping state; when the clamping block clamping grooves in each group of clamping blocks are in a non-clamping state, each driving shaft can extend into the second locking hole through the top driving groove and each middle driving groove, so that the clamping block clamping grooves on the clamping blocks are locked in the non-clamping state; when the top clamp splice in every group clamp splice and all be in non-joint state with a plurality of intermediate clamps that the top clamp splice is adjacent in proper order, when the clamp splice draw-in groove of all the other intermediate clamps is in the joint state, the drive shaft can be through the top drive groove that is in non-joint state with top drive groove in proper order relatively accurate, the non-joint state's of intercommunication each intermediate drive groove, and the middle locating hole of the intermediate clamps of joint state back stretch into to the second locking hole in to lock each clamp splice respectively.

Still further, according to the transmission star wheel, a limiting mechanism capable of limiting the rotation angle and the upper and lower displacement distances of the positioning disc is arranged between the star wheel body and the positioning disc.

Furthermore, in the aforementioned transfer star wheel, the structure of the limiting mechanism includes: the star wheel positioning device comprises a star wheel body, wherein the star wheel body is provided with a plurality of limiting grooves, the outer side wall of the positioning disc is provided with two limiting areas at least at intervals, each limiting area is provided with a plurality of limiting grooves at intervals, the upper and lower intervals of each limiting area are respectively provided with the limiting grooves, the number of the limiting grooves in each limiting area is equal to the number of layers of the star wheel body, the clamping blocks on the same layer are stacked, one limiting groove in each limiting area is corresponding to the clamping block on the same layer on the star wheel body, and a group of.

Each limiting groove is arranged along the circumferential direction, each limiting area is also provided with a first limiting hole and a second limiting hole, and the first limiting hole and the second limiting hole of each limiting area are positioned right above two ends of the uppermost limiting groove in the limiting area; the hole wall of the star wheel body inner hole outside each limit area is provided with a steel ball which can be elastically jacked into each limit groove or into the first limit hole and the second limit hole; the mutual positions of the steel ball, each limit groove, the first limit hole and the second limit hole meet the following relations: the positioning disc moves up and down to drive each limit groove to be blocked by the corresponding steel ball, when the limit groove at a certain height is blocked by the corresponding steel ball, all the driving shafts just extend into the clamping block clamping grooves of the clamping blocks corresponding to the limit grooves at the height position, in this state, the positioning disc rotates back and forth, when one end or the other end of each limit groove is blocked by the steel ball, the clamping block clamping grooves on the clamping blocks, which all the driving shafts extend, are just in a clamping state or are all in a non-clamping state, at the moment, the positioning disc continues to move downwards to enable the limit holes at the end to block the steel balls, and all the driving shafts just extend into the corresponding locking holes.

Further, the aforementioned transfer star, wherein the mounting structure of the steel balls comprises: the star wheel body is characterized in that an installation through hole is formed in the hole wall of the inner hole of the star wheel body, a compression spring is arranged in the installation through hole, a plug is arranged in the installation through hole in the outer end of the compression spring, a steel ball is arranged at the inner end of the compression spring, and the steel ball protrudes out of the installation through hole under the action of the compression spring but does not fall out of the installation through hole.

Further, according to the transmission star wheel, the driving disc is fixedly connected with the positioning disc through the support shafts, a gap is reserved between the positioning disc and the driving disc, and when the driving shaft extends from top to bottom into the driving groove of a certain clamping block, the top surface of the positioning disc is lower than the bottom surface of the clamping block layer but higher than the top surfaces of all clamping blocks which are not extended, so that the inward movement of the clamping blocks which are extended by the driving shaft is not prevented, but the inward movement of the clamping blocks which are not extended by the driving shaft can be prevented.

Further, in the aforementioned transmission star wheel, the driving disc is provided with handles at intervals for driving the driving disc to rotate and move up and down.

The utility model has the advantages that: one, every star wheel draw-in groove department of star wheel body all sets up a plurality of clamp splices, all set up the clamp splice draw-in groove that is used for the joint container on every clamp splice, the clamp splice draw-in groove of every star wheel draw-in groove department, and the star wheel draw-in groove can the different specification and dimension of the container of joint, through the switching to the clamp splice draw-in groove at joint state and non-joint state like this, thereby realize the switching of the state of other each clamp splice draw-in groove joint containers of star wheel draw-in groove joint container or star wheel draw-in groove department, such a transmission star wheel just can carry multiple specification and dimension's container, this makes a filling line can carry out the filling to multiple. Through the cooperation of driving-disc and positioning disk, realize the switching to star gear draw-in groove, each clamp splice draw-in groove, it is very convenient to switch to can effectively improve filling production efficiency, and switching device's simple structure, low in production cost, thereby effectively reduce filling manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of a star wheel body in a transmission star wheel of the present invention.

Fig. 2 is a schematic structural diagram of a driving disc and a positioning disc in the transmission star wheel of the present invention.

Fig. 3 is a schematic structural view of a first block in an embodiment.

Fig. 4 is a schematic structural view of a second block in the embodiment.

Fig. 5 is a schematic view of the mounting structure of the transmission star wheel of the present invention.

Fig. 6 is a schematic structural diagram of positions of a first clamping block, a second clamping block, a driving disc and a positioning disc in the transmission star wheel in the specific embodiment.

Fig. 7 is a schematic structural view of the transfer starwheel in the clamping state of the first and second clamping blocks according to the embodiment.

Fig. 8 is a schematic structural view of the transfer starwheel in the non-clamping state of both the first and second clamping blocks according to the embodiment.

Fig. 9 is a schematic structural view of the transfer starwheel in the clamping state of the first clamp block and the non-clamping state of the second clamp block according to the embodiment.

Detailed Description

The present invention will be described in further detail below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, and 9, with a preferred embodiment of stacking two clamping blocks above the star wheel body 1 at each star wheel slot.

The transmission star wheel comprises a star wheel body 1, in the embodiment, as shown in fig. 1, the star wheel body 1 is in a ring shape, and a plurality of star wheel clamping grooves 11 used for clamping containers are arranged on the outer edge of the star wheel body 1 at intervals. Two clamping blocks, namely a first clamping block 3 and a second clamping block 4 are sequentially stacked from bottom to top on the star wheel body 1 at each star wheel clamping groove 11, a first clamping block clamping groove 31 for clamping the container 2 is formed in the first clamping block 3, and a second clamping block clamping groove 41 for clamping the container 2 is formed in the second clamping block 4. In this embodiment, each star wheel locking groove 11, each first clamping block locking groove 31, and each second clamping block locking groove 41 are in the shape of an inwardly concave circular arc. The first clamping block 31 and the second clamping block 41 which are positioned at the same star wheel clamping groove 11 are the same clamping block group, the star wheel clamping groove 11 and the first clamping block clamping groove 31 at each star wheel clamping groove 11 are a group of clamping grooves, and the second clamping block clamping groove 41 is a group of clamping grooves. Every group draw-in groove reduces in proper order from star wheel draw-in groove 11 to keeping away from star wheel draw-in groove 11 direction on the direction of height, the radius of draw-in groove, and it is 31, 41 radiuses of second clamp splice draw-in grooves to reduce in proper order by lower star wheel draw-in groove 11, first clamp splice draw-in groove in this embodiment. The first clamping block clamping groove 31 and the second clamping block clamping groove 41 in the clamping state in the group of clamping grooves are coaxial with the star wheel clamping groove 11.

Each clamping block can drive the corresponding clamping block clamping groove to move relative to the star wheel clamping groove 11 until each clamping block clamping groove is in a clamping state capable of clamping the container 2 or in a non-clamping state incapable of clamping the container 2. The switching of each clamping block clamping groove in a clamping state or a non-clamping state is driven and locked by a switching device. Every clamp splice draw-in groove that is in the joint state all radially outwards protrusion in the star gear draw-in groove 11 that corresponds at star gear body 1, container 2 can block into to every star gear draw-in groove 11 department be in the joint state, and in the most outside convex clamp splice draw-in groove, every clamp splice draw-in groove that is in non-joint state all can not interfere corresponding star gear draw-in groove 11 and all the other clamp splice draw-in grooves that are in the joint state of this star gear draw-in groove 11 department.

The radial displacement guide mechanisms capable of guiding the clamping blocks to move along the radial direction of the star wheel body 1 are arranged between each clamping block and the star wheel body 1, and under the driving of the switching driving device, the radial displacement guide mechanisms can guide each clamping block to move outwards along the radial direction of the star wheel body 1 until clamping block clamping grooves in each clamping block are in a clamping state, or guide each clamping block to move inwards along the radial direction of the star wheel body 1 until clamping block clamping grooves in each clamping block are in a non-clamping state. Specifically, the structure of the radial displacement guide mechanism includes: all seted up guide way 5 on every clamp splice, guide way 5 on every clamp splice all sets up along the radial of star gear body 1, all is provided with guiding axle 13 in the guide way 5 of the same group clamp splice of every star gear draw-in groove 11 department, and guiding axle 13 is fixed to be set up on star gear body 1. In order to prevent the clamping blocks from deviating and radially shaking, two guide shafts 13 are arranged in the guide grooves 5 of the same group of clamping blocks, a rolling sleeve is arranged on each guide shaft 13, and the rolling sleeves on each guide shaft 13 can freely rotate. The arrangement of the two guide shafts 13 effectively ensures that the clamping blocks move along the radial direction, and the arrangement of the rolling sleeve on each guide shaft 13 effectively reduces the friction force when the clamping blocks move.

The switching device comprises: a switching drive mechanism and a locking mechanism.

The switching drive mechanism includes: each set of clamping blocks has a driving groove, and specifically, as shown in fig. 3 and 4, the first clamping block 3 has a first driving groove 32, and the second clamping block 4 has a second driving groove 42. The clamping block located at the topmost part of the star wheel body 11 in each group of clamping blocks is a top clamping block, the clamping block between the top clamping block and the star wheel body 1 is a middle clamping block, the driving groove on the top clamping block is a top driving groove, and the driving groove on the middle clamping block is a middle driving groove. The top driving groove and each middle driving groove are elongated oblique grooves which extend from the center of the star wheel body 1 to the outer edge direction of the star wheel body 1 and deviate from the radial arrangement. The driving grooves of the clamping blocks in the same state in one group of clamping blocks are aligned up and down. In this embodiment, the second clamping block 4 is a top clamping block, the first clamping block 3 is a middle clamping block, the second driving groove 42 is a top driving groove, and the first driving groove 32 is a middle driving groove.

The activity is provided with positioning disk 6 in star wheel body 1's the hole, the fixed driving-disc 7 that is provided with in positioning disk 6's the top, driving-disc 7's bottom interval sets up a plurality of drive shafts 71, drive shaft 71 all is located positioning disk 6's the outside, every drive shaft 71 all corresponds the cooperation with a set of clamp splice, every drive shaft 71 homoenergetic stretches into to the top drive groove that corresponds in, or can stretch through the top drive groove and aim at with the top drive groove, and in every middle drive groove of intercommunication. In this embodiment, each driving shaft 71 can extend into the corresponding second driving groove 42, or can extend through the second driving groove 42 and the first driving groove 32 aligned with and communicating with the second driving groove 42. The driving shafts 71 located in the second driving grooves 42 and the first driving grooves 32 are caught by both side edges of each driving groove.

The driving disc 7 rotates back and forth to drive the positioning disc 6 and each driving shaft 71 to rotate back and forth, and in the rotating process of each driving shaft 71, the driving shaft 71 extending into the second driving groove 42 can independently drive the second clamping block 4 to move inwards to the second clamping block clamping groove 41 on the second clamping block 4 along the radial direction of the star wheel body 1 through the second driving groove 42 to be in a non-clamping state, or independently drive the second clamping block 4 to move outwards to the clamping block clamping groove 41 on the second clamping block 4 to be in a clamping state. The driving shaft 71 of the first driving groove 32 extending through the second driving groove 42 and aligned and communicated with the second driving groove 42 can drive the second clamping block 4 and the extending first clamping block 3 to synchronously and radially translate inwards along the star wheel body 1 through the second driving groove 42 and the extending first driving groove 32 until the second clamping block clamping groove 41 of the second clamping block 4 and the first clamping block clamping groove 31 of the extending first clamping block 3 are in a non-clamping state, or drive the second clamping block 4 and the extending first clamping block 3 to synchronously and radially translate outwards along the star wheel body 1 until the second clamping block clamping groove 41 of the second clamping block 4 and the first clamping block clamping groove 31 of the extending first clamping block 3 are in a clamping state; the locking mechanism can lock clamping block clamping grooves in the clamping state and the non-clamping state in each group of clamping blocks.

In this embodiment, the locking mechanism includes: a plurality of groups of locking holes are arranged on the star wheel body 1 at intervals, each group of locking holes comprises a first locking hole 101 and a second locking hole 102, and one group of locking holes corresponds to one group of clamping grooves. Each first clamping block 3 in each group of clamping blocks is provided with a middle positioning hole 301, and the second driving groove 42 and the first driving groove 32 of each group of clamping blocks are inclined towards the second locking hole 102 from the corresponding first locking hole 101. The middle positioning hole 301 on the middle clamping block with each clamping block clamping groove in the clamping state is located right above the corresponding second locking hole 102, namely: the middle positioning hole 301 of the first clamping block 3, in which each first clamping block slot 31 is in the clamping state, is located right above the second locking hole 102. When the first clamping block clamping groove 31 and the second clamping block clamping groove 41 in each group of clamping blocks are in a clamping state, each driving shaft 71 can stretch into the corresponding first locking hole 101 through the corresponding second driving groove 42 and the corresponding first driving groove 32, so that the second clamping block clamping groove 41 of the second clamping block 4 and the first clamping block clamping groove 31 of the first clamping block 3 are locked in the clamping state. When the first clamping block clamping groove 31 and the second clamping block clamping groove 41 in each group of clamping blocks are in a non-clamping state, each driving shaft 71 can stretch into the second locking hole 102 through the second driving groove 42 and the first driving groove 32, and therefore the second clamping block clamping groove 41 and the first clamping block clamping groove 31 are locked in the non-clamping state. When the second clamping block clamping groove 41 of the second clamping block 4 in each group of clamping blocks is in a non-clamping state and the first clamping block clamping groove 31 of the first clamping block 3 is in a clamping state, the driving shaft 71 can extend into the second locking hole 102 through the first driving groove 42 in the non-clamping state and the middle positioning hole 301 of the first clamping block 3 in the clamping state, and therefore the clamping blocks are locked respectively.

A limiting mechanism capable of limiting the rotation angle and the upper and lower displacement distances of the positioning disc 6 is arranged between the star wheel body 1 and the positioning disc 6.

In this embodiment, the structure of the limiting mechanism includes: as shown in fig. 2, at least two limiting areas 61 are provided on the outer side wall of the positioning plate 6 at intervals, and the number of the limiting areas 61 can be set according to actual needs, and the limiting areas are generally uniformly arranged on the outer side wall of the positioning plate 6 at intervals. Every spacing region 61 has a plurality of spacing grooves about equal interval arrangement, and the quantity of the spacing groove of every spacing region 61 all is the same with the number of piles that the clamp splice stacked on the star gear body 1, and a spacing groove of every spacing region 61 all is corresponding with the clamp splice draw-in groove of the clamp splice of the same layer on the star gear body 1, and a set of spacing groove corresponding with the clamp splice of the same layer on the star gear body 1 all is in same high position. In this embodiment, each limiting region 61 is sequentially provided with a first limiting groove 601 and a second limiting groove 602 from bottom to top, the first limiting groove 601 of each limiting region corresponds to the second clamping block slot 41 of all the second clamping blocks 4 on the same layer of the star wheel body 1, and the second limiting groove 602 of each limiting region corresponds to the first clamping block slot 31 of all the first clamping blocks 3 on the same layer of the star wheel body 1.

The first limiting groove 601 and the second limiting groove 602 are arranged along the circumferential direction, each limiting area 61 is further provided with a first limiting hole 603 and a second limiting hole 604, and the first limiting hole 603 and the second limiting hole 604 of each limiting area 61 are located right above two ends of the uppermost limiting groove in the limiting area. The hole wall of the inner hole of the star wheel body 1 outside each limit area is provided with a steel ball 12 which can be elastically pushed into each limit groove or into the first limit hole 603 and the second limit hole 604. In the present embodiment, the mounting structure of each steel ball 12 includes: the side wall of the star wheel body 1 is provided with an installation through hole 16, a compression spring 14 is arranged in the installation through hole 16, a plug 15 is arranged in the installation through hole 16 at the outer end of the compression spring 14, the steel ball 12 is arranged at the inner end of the compression spring 14, and the steel ball 12 protrudes out of the installation through hole 16 under the action of the compression spring 14 but does not fall out of the installation through hole 16.

In this embodiment, the mutual positions of the steel ball 12, the first limiting groove 601, the second limiting groove 602, the first limiting hole 603, and the second limiting hole 604 satisfy the following relationship: the positioning disc 6 moves up and down to drive each limit groove to be blocked by the corresponding steel ball 12, when the limit groove at a certain height is blocked by the corresponding steel ball 12, all the driving shafts 71 just extend into the clamp block clamping grooves of the clamp blocks corresponding to the limit groove at the height position, in this state, the positioning disc 6 rotates back and forth, when one end or the other end of the limit groove is blocked by the steel ball 12, the clamp block clamping grooves on the clamp blocks, which all the driving shafts 71 extend into, are just in a clamping state or are all in a non-clamping state, at this moment, the positioning disc 6 continues to move down to enable the limit holes at the end to block the steel balls, and all the driving shafts 71 just extend into the corresponding locking holes.

Specifically, as an initial state, the chuck engaging groove at each of the star wheel engaging grooves 11 is locked in the engaging state, as shown in fig. 7. In an initial state, the first clamping groove 31 and the second clamping groove 41 of each group of clamping blocks are locked in a clamping state, each driving shaft 71 extends into the corresponding first locking hole 101 through the second driving groove 42 and the first driving groove 31, and at the moment, the second limiting hole 604 in each limiting area 61 is blocked by the corresponding steel ball 12. In the initial state, the second clamping block clamping groove 41 in each group of clamping grooves protrudes most outward, so that in this state, the container 2 can be clamped into the second clamping block clamping groove 41 at the position of each star wheel clamping groove 11, that is: in this state, the second clamp block notch 41 performs the clamping operation of the container.

In an initial state, the positioning disc 6 moves vertically upwards, the steel ball 12 is separated from the second limiting hole 604, the first limiting groove 601 is blocked by the corresponding steel ball 12, at the moment, each driving shaft 71 just extends into the second driving groove 42, the positioning disc 6 rotates in the state until one end of each first limiting groove 601, which is positioned in the first limiting hole 603, is blocked by the corresponding steel ball 12, the second clamping block slot of each second clamping block 4 is positioned in a non-clamping state, at the moment, the positioning disc 6 moves downwards, so that each first limiting hole 603 is blocked outside the corresponding steel ball 12, each driving shaft 71 just passes through the second driving groove 42 and the corresponding middle positioning hole 301 and extends into the second locking hole 102, thus the second clamping block slot 41 of the second clamping block 4 at each star wheel clamping slot 11 is just locked in the non-clamping state, the first clamping block slot 31 of the first clamping block 3 at each star wheel clamping slot 11 is just locked in the clamping state, referring to fig. 8, in this state, the container 2 can be snapped into the first gripper block slot 31 of the first gripper block 3 at each starwheel slot 11, namely: in this state, the first clamp block locking groove 31 performs the locking work of the container.

In the initial state, the positioning plate 6 moves vertically upwards, the steel ball 12 is separated from the second limiting hole 604, the second limiting groove 602 is blocked by the corresponding steel ball 12, at this time, each driving shaft just extends into the first driving groove 32 through the second driving groove 42, in this state, the positioning plate 6 rotates until one end of each first limiting groove 601, which is located in the first limiting hole 603, is blocked by the corresponding steel ball 12, the second clamping block slot 41 of each second clamping block 4 and the first clamping block slot 31 of the first clamping block 3 are both located in the non-blocking state, at this time, the positioning plate 6 moves vertically downwards, so that each first limiting hole 603 is blocked outside the corresponding steel ball 12, and each driving shaft 71 just extends into the second locking hole 102 through the second driving groove 42 and the first driving groove 32, so that the second clamping block slot 41 of the second clamping block 4 and the first clamping block slot 31 of the first clamping block 3 at each star wheel clamping groove 11 are all locked in the non-blocking state, with reference to fig. 9, in this condition, the containers 2 can be inserted into each star-wheel slot 11, namely: in this state, each star wheel slot 11 performs container clamping operation.

In this embodiment, the driving disc 7 is fixedly connected to the positioning disc 6 through a plurality of supporting shafts 8, a gap is left between the positioning disc 6 and the driving disc 7, and when the driving shaft 71 extends downward from above into a driving groove of a certain clamping block, the top surface of the positioning disc 6 is lower than the bottom surface of the clamping block of the layer but higher than the top surfaces of all clamping blocks which are not extended, so that the inward movement of the clamping block which the driving shaft 71 extends to is not prevented, but the inward movement of the clamping block which the driving shaft 71 does not extend to can be prevented, as shown in fig. 6. In order to control the movement of the driving disc 7, handles 72 for driving the driving disc 7 to rotate and move up and down are arranged on the driving disc 7 at intervals. The handles 72 are typically provided in pairs to facilitate manipulation and adjustment. The driving disc 7 drives the positioning disc 6 to lift and rotate through the pair of handles 72, the structure is simple, the manufacturing cost is low, and the adjustment is very convenient.

It is right for preferred embodiment to stack above the star wheel body 1 that will locate at every star wheel draw-in groove and set up two clamp blocks above transmission star wheel introduced comparatively in detail. The structure that more than two clamping blocks are arranged at the 11 position of each star wheel clamping groove can refer to the structure. The number of the clamping blocks at each star wheel clamping groove 11 can be set according to actual needs. The structure that 11 departments of every star gear draw-in groove department set up a clamp splice is comparatively simple, and every drive shaft only needs the translation of the corresponding clamp splice outwards to joint state or translation inwards to non-joint state to realize the switching of star gear draw-in groove and a clamp splice draw-in groove of every star gear draw-in groove department.

The transmission star gear divide into the body star gear that is used for joint container mouth bottleneck star gear and is used for joint container body usually, and fig. 1 to 9 only use the joint body as the example to illustrate, in the actual production process, the transmission star gear also can be used to the joint bottleneck.

The utility model has the advantages that: one, 11 departments of every star wheel draw-in groove of star wheel body 1 all set up a plurality of clamp splices, all set up the clamp splice draw-in groove that is used for the joint container on every clamp splice, the clamp splice draw-in groove of 11 departments of every star wheel draw-in groove, and the star wheel draw-in groove can the joint container 2 specification different, like this through the switching to the clamp splice draw-in groove at joint state and non-joint state, thereby realize the switching of the state of other each clamp splice draw-in groove joint containers of star wheel draw-in groove joint container or star wheel draw-in groove department, such a transmission star wheel just can carry multiple specification and dimension's container, this makes a filling line can carry out the filling to multiple specification's. Through the cooperation of driving-disc and positioning disk, realize the switching to star gear draw-in groove, each clamp splice draw-in groove, it is very convenient to switch to can effectively improve filling production efficiency, and switching device's simple structure, low in production cost, thereby effectively reduce filling manufacturing cost.

Claims

1. Transmission star gear, including the star gear body, the interval is provided with a plurality of star gear draw-in grooves that are used for the joint container on the outward flange of star gear body, its characterized in that: each star wheel clamping groove is at least stacked and provided with a clamping block, each clamping block is provided with a clamping block clamping groove for clamping a container, and each clamping block can drive the corresponding clamping block clamping groove to move relative to the star wheel clamping groove until each clamping block clamping groove is in a clamping state capable of clamping the container or in a non-clamping state incapable of clamping the container; the switching of each clamping block clamping groove in a clamping state or a non-clamping state is driven and locked by a switching device; every clamp splice draw-in groove that is in the joint state all radially outwards protrusion in the star gear draw-in groove that corresponds at the star gear body, and the container can block into to every star gear draw-in groove department be in the joint state, and in the most outside convex clamp splice draw-in groove, every clamp splice draw-in groove that is in non-joint state all can not interfere corresponding star gear draw-in groove and all the other clamp splice draw-in grooves that are in the joint state of this star gear draw-in groove department.

2. The transfer starwheel of claim 1, wherein: a radial displacement guide mechanism capable of guiding the clamping blocks to translate along the radial direction of the star wheel body is arranged between each clamping block and the star wheel body, and under the driving of the switching driving device, each clamping block can be guided by the radial displacement guide mechanism to translate outwards along the radial direction of the star wheel body until clamping block clamping grooves on each clamping block are in a clamping state, or each clamping block can be guided to translate inwards along the radial direction of the star wheel body until the clamping block clamping grooves on each clamping block are in a non-clamping state; the clamping blocks located at the same star wheel clamping groove are the same group of clamping blocks, and the star wheel clamping groove and each clamping block clamping groove at each star wheel clamping groove are the same group of clamping grooves.

3. The transfer starwheel of claim 2, wherein: each star wheel clamping groove and each clamping block clamping groove are arc-shaped and concave inwards, the star wheel clamping groove and the clamping block clamping groove at each star wheel clamping groove are a group of clamping grooves, each group of clamping grooves are far away from the star wheel clamping groove in the height direction, and the radius of each clamping groove is reduced in sequence; clamping block clamping grooves in a clamping state in the group of clamping grooves are coaxial with the star wheel clamping grooves.

4. The transfer starwheel of claim 3, wherein: each group of clamping blocks are sequentially overlapped from bottom to top above the star wheel body corresponding to the star wheel clamping groove.

5. The transfer starwheel of claim 2, 3 or 4, wherein: the structure of the radial displacement guide mechanism comprises: all seted up the guide way on every clamp splice, the guide way on every clamp splice is all seted up along the radial of star gear body, all is provided with the guiding axle in the guide way of the same group clamp splice of every star gear draw-in groove department, and the guiding axle is fixed to be set up on the star gear body.

6. The transfer starwheel of claim 5, wherein: two guide shafts are arranged in the guide grooves of the same group of clamping blocks, a rolling sleeve is arranged on each guide shaft, and the rolling sleeves on each guide shaft can freely rotate.

7. The transfer starwheel of claim 4, wherein: the switching device includes: a switching drive mechanism and a locking mechanism;

the switching drive mechanism includes: each clamping block in each group of clamping blocks is provided with a driving groove, one clamping block positioned at the topmost part of the star wheel body in each group of clamping blocks is a top clamping block, a clamping block between the top clamping block and the star wheel body is a middle clamping block, the driving groove on the top clamping block is a top driving groove, the driving groove on the middle clamping block is a middle driving groove, and the top driving groove and each middle driving groove are strip-shaped inclined grooves which extend from the center of the star wheel body to the outer edge direction of the star wheel body and deviate from the radial arrangement; the driving grooves of the clamping blocks in the same state in the group of clamping blocks are aligned up and down;

a positioning disc is movably arranged in an inner hole of the star wheel body, a driving disc is fixedly arranged above the positioning disc, a plurality of driving shafts are arranged at the bottom of the driving disc at intervals, the driving shafts are all positioned on the outer side of the positioning disc, each driving shaft is correspondingly matched with one group of clamping blocks, and each driving shaft can extend into a corresponding top driving groove or can extend into each middle driving groove which is aligned with and communicated with the top driving groove through the top driving groove; the driving shaft positioned in the driving groove is blocked by the two side edges of the driving groove;

8. The transfer starwheel of claim 7, wherein: the locking mechanism comprises: a plurality of groups of locking holes are arranged on the star wheel body at intervals, each group of locking holes comprises a first locking hole and a second locking hole, and one group of locking holes corresponds to one group of clamping grooves; each middle clamping block in each group of clamping blocks is provided with a middle positioning hole, and the top driving groove and each middle driving groove of each group of clamping blocks are inclined towards the direction of the second locking hole from the corresponding first locking hole; the middle positioning hole on the middle clamping block with each clamping block clamping groove in the clamping state is positioned right above the second locking hole; when the clamping block clamping grooves in each group of clamping blocks are in a clamping state, each driving shaft can extend into the corresponding first locking hole through the corresponding top driving groove and each middle driving groove, so that the clamping block clamping grooves on the clamping blocks are locked in the clamping state; when the clamping block clamping grooves in each group of clamping blocks are in a non-clamping state, each driving shaft can extend into the second locking hole through the top driving groove and each middle driving groove, so that the clamping block clamping grooves on the clamping blocks are locked in the non-clamping state; when the top clamp splice in every group clamp splice and all be in non-joint state with a plurality of intermediate clamps that the top clamp splice is adjacent in proper order, when the clamp splice draw-in groove of all the other intermediate clamps is in the joint state, the drive shaft can be through the top drive groove that is in non-joint state with top drive groove in proper order relatively accurate, the non-joint state's of intercommunication each intermediate drive groove, and the middle locating hole of the intermediate clamps of joint state back stretch into to the second locking hole in to lock each clamp splice respectively.

9. The transfer starwheel of claim 7, wherein: a limiting mechanism capable of limiting the rotation angle and the upper and lower displacement distances of the positioning disc is arranged between the star wheel body and the positioning disc.

10. The transfer starwheel of claim 9, wherein: the structure of the limiting mechanism comprises: the outer side wall of the positioning disc is at least provided with two limiting areas at intervals, each limiting area is provided with a plurality of limiting grooves at intervals up and down, the number of the limiting grooves of each limiting area is the same as the number of layers of stacked clamping blocks on the star wheel body, one limiting groove of each limiting area corresponds to the clamping block on the same layer on the star wheel body, and a group of limiting grooves corresponding to the clamping blocks on the same layer on the star wheel body are located at the same height position;

11. The transfer starwheel of claim 10, wherein: the steel ball mounting structure includes: the star wheel body is characterized in that an installation through hole is formed in the hole wall of the inner hole of the star wheel body, a compression spring is arranged in the installation through hole, a plug is arranged in the installation through hole in the outer end of the compression spring, a steel ball is arranged at the inner end of the compression spring, and the steel ball protrudes out of the installation through hole under the action of the compression spring but does not fall out of the installation through hole.

12. The transfer starwheel of claim 7, 8, 9 or 10, wherein: the driving disc is fixedly connected with the positioning disc through a plurality of supporting shafts, a gap is reserved between the positioning disc and the driving disc, when the driving shaft extends downwards from the top into a driving groove of a certain clamping block, the top surface of the positioning disc is lower than the bottom surface of the clamping block layer but higher than the top surfaces of all clamping blocks which are not extended, so that the clamping blocks which are extended by the driving shaft are not hindered from moving inwards, and the clamping blocks which are not extended by the driving shaft can be prevented from moving inwards.

13. The transfer starwheel of claim 7, 8, 9 or 10, wherein: handles which are convenient for driving the driving disc to rotate and move up and down are arranged on the driving disc at intervals.