阅读说明：本技术 驱动模块、收放卷装置及打印设备 (Drive module, winding/unwinding device and printing device ) 是由 詹明 杨付伟 于 2019-09-29 设计创作，主要内容包括：本发明实施例涉及收放卷设备技术领域,公开了一种驱动模块、收放卷装置及打印设备。该驱动模块包括：离合轴,其一端设有第一啮合部,第一啮合部用于与外部的转轴啮合以使离合轴与转轴周向固定；以及驱动组件,驱动组件用于驱动离合轴沿轴向运动以使离合轴与转轴啮合或分离,以及用于驱动离合轴周向转动。本发明实施例提供的驱动模块通过驱动离合轴轴向运动即可实现与转轴的啮合,其无需与转轴错位安装,能够减小该装置的整体占用空间；并且省略了齿轮等传动组件,使转轴的拆装十分方便。此外,第一啮合部与转轴啮合时可以在设计上将两者的啮合间隙做的极小甚至没有啮合间隙,故该驱动模块与转轴之间的传动精准可靠。(The present embodiments relate to retractable volume equipment technical field, a kind of drive module, winding/unwinding device and printing device are disclosed.The drive module includes: clutch shaft, and one end is equipped with the first engaging section, and the first engaging section is used to engage with external shaft so that clutch shaft is circumferentially fixed with shaft；And driving assembly, driving assembly is for driving clutch shaft axially movable so as to the engagement of clutch shaft and shaft or separate, and for driving clutch shaft to circumferentially rotate.Drive module provided in an embodiment of the present invention is axially moved can be realized and engage with shaft by driving clutch shaft, without with shaft arranged in dislocation, can reduce the whole occupied space of the device；And the transmission components such as gear are omitted, keep the dismounting of shaft very convenient.In addition, the first engaging section can in design do the back lash of the two minimum even without back lash when engaging with shaft, therefore the transmission between the drive module and shaft is precisely reliable.)

1. a kind of drive module is used for winding/unwinding device characterized by comprising

Clutch shaft, one end of the clutch shaft are equipped with the first engaging section, and first engaging section is used to engage with external shaft So that the clutch shaft and the shaft are circumferentially fixed；And

Driving assembly, the driving component is for driving the clutch shaft axially movable so that the clutch shaft and the shaft Engagement or separation, and for driving the clutch shaft to circumferentially rotate.

2. drive module according to claim 1, which is characterized in that further include transmission shaft, the clutch axle sleeve is set to institute State transmission shaft, the clutch shaft and the transmission shaft slide axially cooperation and the opposite transmission shaft of the clutch shaft it is circumferentially solid It is fixed；

The driving component includes the first driving mechanism and the second driving mechanism, and first driving mechanism is for driving the biography Moving axis rotation, so that the clutch shaft is synchronized and circumferentially rotated, second driving mechanism is for driving the clutch shaft along axial It is moved between retracted position and extended position.

3. drive module according to claim 2, which is characterized in that second driving mechanism includes actuator and reset Part, the actuator for driving the clutch shaft in the extended position to the retracted position, use by the return unit The extended position is moved in the retracted position in the driving clutch shaft.

4. drive module according to claim 3, which is characterized in that the actuator includes cylinder, and with the gas The push plate of the output end connection of cylinder, the cylinder is for driving the push plate along the axial movement of the clutch shaft, so that described Push plate can support with the clutch shaft and drive the clutch shaft from the extended position to the retracted position.

5. drive module according to claim 3, which is characterized in that the return unit is spring, and the spring is set to institute The one end of clutch shaft far from first engaging section is stated, one end of the spring is abutted with the clutch shaft or fixed, the bullet The other end of spring is abutted or is fixed with the transmission shaft.

6. drive module according to claim 3, which is characterized in that further include positive stop strip, the positive stop strip is fixed on institute It states transmission shaft and is extended to except the transmission shaft along the axially direction perpendicular to the transmission shaft；

The inner wall of the clutch shaft is equipped with limit guide groove compatible with the positive stop strip, described along the axial direction of the clutch shaft One end of limit guide groove is equipped with one end of first engaging section, another end seal of the limit guide groove through the clutch shaft It closes, the positive stop strip is inserted into the limit guide groove.

7. drive module according to any one of claims 2 to 5, which is characterized in that further include sensor and controller, institute Sensor is stated for detecting the location status of the clutch shaft, the sensor and first driving mechanism with the control Device connection.

8. a kind of winding/unwinding device, which is characterized in that including shaft and such as the described in any item drive modules of claim 2 to 7, One end of the shaft is equipped with the second engaging section compatible with first engaging section, first engaging section and described second Engaging section is oppositely arranged；

When first engaging section is aligned with second engaging section, first driving mechanism can drive the clutch shaft axis To the extended position is moved to, so that first engaging section is engaged with second engaging section.

9. winding/unwinding device according to claim 8, which is characterized in that the shaft includes expansion shaft and clutch block, institute One end that clutch block is detachably connected to the expansion shaft is stated, the clutch block is set far from one end of the expansion shaft There is second engaging section.

10. a kind of printing device, which is characterized in that including drive module as described in any one of claim 1 to 9.

[technical field]

The present embodiments relate to retractable volume apparatus field more particularly to a kind of drive modules, winding/unwinding device and printing Equipment.

[background technique]

In printing device, the folding and unfolding process of printing element is generally completed by winding/unwinding device.Specifically, winding/unwinding device It is divided into unwinding device and wrap-up, the unwinding device is identical as the structure of wrap-up.

For realize unreel process, generally by by printing element on specific reel, then by the reel interference It is assemblied in the shaft of unwinding device, the drive module of unwinding device drives its shaft to turn by a series of transmission mechanism later It is dynamic that the process of unreeling can be realized.And for wrapup procedure, specific reel interference is generally first installed on to the shaft of wrap-up, Then the end of printing element on above-mentioned unwinding device is pulled out and is fixed on the side of the reel, later the driving of wrap-up Module drives the rotation of its shaft that wrapup procedure can be realized by a series of transmission mechanism.Currently, there is some folding and unfoldings in the market Winding apparatus is driven by gear set, is the gear that is connected with of the output end of driving mechanism, shaft is also connected with gear.

However, the present inventor has found in the implementation of the present invention: being wrapped using the folding and unfolding of gear set transmission It sets and on the one hand needs driving mechanism and shaft arranged in dislocation, it is larger so as to cause the occupied space of the device；On the other hand, In In the course of work of winding/unwinding device, it is often necessary to replace the printing element on reel, such as unwinding device and exhaust or wind Printing element on device, which is wound up into, to be sized, and is replaced reel and then needed simultaneously to disassemble shaft, it means that is needed Gear is dismounted simultaneously, this undoubtedly increases the working strength of staff and reduces assembly efficiency.

[summary of the invention]

The embodiment of the present invention is intended to provide a kind of drive module, winding/unwinding device and printing device, to solve to use at present The technical problem that the winding/unwinding device occupied space of gear set transmission is big, inconvenience dismounting and transmission accuracy are low.

The embodiment of the present invention solves its technical problem using following technical scheme:

A kind of drive module is used for winding/unwinding device, comprising:

Clutch shaft, one end of the clutch shaft are equipped with the first engaging section, and first engaging section is used for and external shaft Engagement is so that the clutch shaft and the shaft are circumferentially fixed；And

Driving assembly, the driving component for drive the clutch shaft axially movable so that the clutch shaft with it is described Shaft engagement or separation, and for driving the clutch shaft to circumferentially rotate.

Scheme as a further improvement of the above technical scheme further includes transmission shaft, and the clutch axle sleeve is set to the biography Moving axis, the clutch shaft and the transmission shaft slide axially cooperation and the opposite transmission shaft of the clutch shaft it is circumferentially fixed；

The driving component includes the first driving mechanism and the second driving mechanism, and first driving mechanism is for driving institute Transmission shaft rotation is stated, so that the clutch shaft is synchronized and circumferentially rotated, second driving mechanism is for driving the clutch shaft edge It is moved axially between retracted position and extended position.

Scheme as a further improvement of the above technical scheme, second driving mechanism include actuator and return unit, The actuator is for driving the clutch shaft in the extended position to the retracted position, and the return unit is for driving It moves the clutch shaft and moves to the extended position in the retracted position.

Scheme as a further improvement of the above technical scheme, the actuator include cylinder, and with the cylinder The push plate of output end connection, the cylinder is for driving the push plate along the axial movement of the clutch shaft, so that the push plate It can be supported with the clutch shaft and drive the clutch shaft from the extended position to the retracted position.

Scheme as a further improvement of the above technical scheme, the return unit are spring, the spring be set to it is described from The one end of sympodium far from first engaging section, one end of the spring abut or fix with the clutch shaft, the spring The other end is abutted or is fixed with the transmission shaft.

Scheme as a further improvement of the above technical scheme further includes positive stop strip, and the positive stop strip is fixed on the biography It moving axis and is extended to except the transmission shaft along perpendicular to the axially direction of the transmission shaft；

The inner wall of the clutch shaft is equipped with limit guide groove compatible with the positive stop strip, along the axial direction of the clutch shaft, One end of the limit guide groove is equipped with one end of first engaging section, the other end of the limit guide groove through the clutch shaft Closing, the positive stop strip are inserted into the limit guide groove.

Scheme as a further improvement of the above technical scheme, further includes sensor and controller, and the sensor is used for The location status of the clutch shaft is detected, the sensor and first driving mechanism are connect with the controller.

The embodiment of the present invention solves its technical problem and also uses following technical scheme:

A kind of winding/unwinding device, including shaft and above-mentioned drive module, one end of the shaft is equipped with and described first Compatible second engaging section of engaging section, first engaging section are oppositely arranged with second engaging section；

When first engaging section is aligned with second engaging section, first driving mechanism can drive the clutch Axis is axially moved to the extended position, so that first engaging section is engaged with second engaging section.

Scheme as a further improvement of the above technical scheme, the shaft include expansion shaft and clutch block, the clutch Block is detachably connected to one end of the expansion shaft, and the clutch block is equipped with described far from one end of the expansion shaft Second engaging section.

The embodiment of the present invention solves its technical problem and also uses following technical scheme:

A kind of printing device, including above-mentioned drive module.

The beneficial effects of the present invention are:

Drive module provided in an embodiment of the present invention includes clutch shaft and driving assembly.Wherein, one end of clutch shaft is equipped with First engaging section, which is used to engage with external shaft, so that clutch shaft is circumferentially fixed with shaft.Driving assembly For driving above-mentioned clutch shaft axially movable so that above-mentioned clutch shaft and shaft are engaged or separated, and for drive it is above-mentioned from Sympodium circumferentially rotates.When clutch shaft is engaged with shaft, clutch shaft is circumferentially fixed with shaft, so above-mentioned drive module is driving Clutch shaft can drive shaft to rotate synchronously when circumferentially rotating.When needing to dismantle shaft, it is only necessary to driving assembly be made to drive clutch shaft It moves along its axial direction to the side far from shaft and is separated with shaft.

Compared with winding/unwinding device currently on the market is using gear set transmission, drive module provided in an embodiment of the present invention Be axially moved can be realized by driving clutch shaft and be engaged with shaft, without with shaft arranged in dislocation, can reduce the dress The whole occupied space set；And the transmission components such as gear are omitted, keep the dismounting of shaft very convenient.In addition, the first engagement The back lash of the two can be done minimum even without back lash, therefore the driving mould by portion in design when engaging with shaft Transmission between block and shaft is precisely reliable.

[Detailed description of the invention]

One or more embodiments are illustrated by corresponding attached drawing, these exemplary illustrations not structure The restriction of pairs of embodiment, the element with same reference numbers label is expressed as similar element in attached drawing, unless there are special It declares, composition does not limit the figure in attached drawing.

Fig. 1 is the stereoscopic schematic diagram in a direction of the present invention winding/unwinding device that wherein an embodiment provides；

Fig. 2 is the stereoscopic schematic diagram of drive module in Fig. 1；

Fig. 3 is the decomposition diagram of drive module in Fig. 2；

Fig. 4 is the cut-away illustration along line A-A that drive module hides after the first driving mechanism in Fig. 2；

Fig. 5 is the stereoscopic schematic diagram in a direction of clutch shaft in Fig. 3；

Fig. 6 is the stereoscopic schematic diagram in another direction of clutch shaft in Fig. 3；

Fig. 7 is clutch shaft in Fig. 6 along the cut-away illustration of line B-B；

Fig. 8 is the stereoscopic schematic diagram of transmission shaft in Fig. 3；

Fig. 9 is the stereoscopic schematic diagram of shaft and mounting base assembly；

Figure 10 is the decomposition diagram of shaft and mounting base in Fig. 9.

[specific embodiment]

To facilitate the understanding of the present invention, in the following with reference to the drawings and specific embodiments, the present invention will be described in more detail. It should be noted that it can be directly in another element when element is expressed another element of " being fixed on "/" being fixed in " Upper or placed in the middle there may be one or more therebetween elements.When an element is expressed " connection " another element, it can To be directly to another element or elements placed in the middle there may be one or more therebetween.This specification is used Term "vertical", "horizontal", "left" and "right", "inner", "outside" and similar statement for illustrative purposes only.

Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to The normally understood meaning of the technical staff in domain is identical.It is specific to be intended merely to description for used term in the description of the invention Embodiment purpose, be not intended to limitation the present invention.Term "and/or" used in this specification includes one or more phases Any and all combinations of the listed item of pass.

In addition, as long as technical characteristic involved in invention described below difference embodiment is not constituted each other Conflict can be combined with each other.

In the present specification, described " installation " includes the modes such as welding, being spirally connected, being clamped, bonding for a certain element or device It fixes or is limited to specific position or place, the element or device can be remained stationary in specific position or place also to be limited Movable in range, the element or device are fixed or are limited to be dismantled also not can be carried out behind specific position or place to tear open It unloads, in embodiments of the present invention with no restriction.

Referring to Fig. 1, it illustrates the stereoscopic schematic diagram of the present invention winding/unwinding device that wherein an embodiment provides, the receipts Unwinding device includes drive module 100, shaft 200, mounting base 300 and mounting plate 400.Wherein, two mounting plates 400 are vertical directly sets It sets and is parallel to each other；The same end of two mounting plates 400 is equipped with side opening, and two mounting bases 300 are set by above-mentioned side opening respectively It is placed in mounting plate 400, the lockable mechanism (not shown) on mounting plate 400 protrudes within the scope of above-mentioned side opening, to stop to pacify It fills seat 300 to slide from above-mentioned side opening, and along the axial direction of mounting base 300, the opposite mounting plate 400 of each mounting base 300 is fixed；Turn The both ends of axis 200 are carried on the inner hole of above-mentioned two mounting base 300 respectively；Drive module 100 is fixed on a wherein mounting plate 400, Drive module 100 can be engaged or be separated with shaft 200, and when the two engagement, drive module 100 can be 200 turns of drive shaft It is dynamic.

For ease of understanding, it makes an explanation first to above-mentioned drive module 100 below.

Referring to figure 2. to Fig. 4, which respectively show the stereoscopic schematic diagrams of drive module 100, decomposition diagram, and drive Dynamic model block hides the first driving mechanism later along the cut-away illustration of line A-A；The drive module 100 includes pedestal 110, clutch shaft 120, transmission shaft 130 and driving assembly.Wherein, clutch shaft 120 is sheathed on transmission shaft 130, clutch shaft 120 and transmission shaft 130 It is slidably matched and the two is circumferentially fixed, meanwhile, clutch shaft 120 and transmission shaft 130 are contained in pedestal 110；Driving assembly is used for It drives clutch shaft 120 axially movable and circumferentially rotates, which specifically includes for driving transmission shaft 130 circumferentially to turn The first dynamic driving mechanism 140, and the second driving machine for driving the axially opposed transmission shaft 130 of clutch shaft 120 to slide Structure 150.

For said base 110, referring in particular to Fig. 3, and Fig. 4 is combined, the approximate square block knot of 110 shape of pedestal Structure, middle part are equipped with the mounting hole 111 of perforation, which is used to install above-mentioned clutch shaft 120 and transmission shaft 130.

For above-mentioned clutch shaft 120, referring to figure 5. to Fig. 7, which respectively show the vertical of the both direction of clutch shaft 120 Body schematic diagram, and along the cut-away illustration of line B-B, in combination with Fig. 1 to Fig. 4, whole clutch shaft 120 is in a tubular structure, Its wall coaxial is provided with a locating flange 121, and the inner wall of mounting hole 111 also extends a positioning step to center, and (figure is not Show), clutch shaft 120 is installed on above-mentioned mounting hole 111 and realizes location and installation by the locating flange 121.In clutch shaft 120 Portion is equipped with a rectangle spliced eye 122 for extending along axis and integrally penetrating through, it is preferred that the axis and clutch shaft of the spliced eye 122 130 axis collinear, the spliced eye 122 is for accommodating at least partly transmission shaft 130.The end face of one end of clutch shaft 120 is equipped with First engaging section 123, the first engaging section 123 are located at the two sides of locating flange 121, the first engaging section with above-mentioned positioning step 123 with shaft 200 for engaging, so that circumferentially fixed between clutch shaft 120 and shaft 200 after completing engagement.In the present embodiment, First engaging section 123 is two mesh grooves, and two mesh grooves are centrosymmetric point about the axis of clutch shaft 120 Cloth.The end face of the one end of clutch shaft 120 far from the first engaging section 123 is equipped with the countersunk head slot 124 intersected with spliced eye 122, preferably , countersunk head slot 124 and spliced eye 122 are coaxially disposed.

For above-mentioned transmission shaft 130, please refer to Fig. 8, it illustrates the stereoscopic schematic diagrams of transmission shaft 130, please in combination with Fig. 1 to Fig. 7, transmission shaft 130 include interconnecting piece 131, plug division 132 and flange 133.Wherein, interconnecting piece 131 is whole cylindrical Structure, plug division 132 are prolonged along the axial of interconnecting piece 131 towards one end far from interconnecting piece 131 from the end face of one end of interconnecting piece 131 It stretches, it is notable that the outer profile of plug division 132 is all the same with the form and dimension of above-mentioned spliced eye 122, in this implementation In example, the outer profile of plug division 132 is shaft-like structure in a rectangular parallelepiped shape, and the axis of plug division 132 and above-mentioned interconnecting piece 131 Axis collinear.Flange 133 is coaxially fixed in the one end of interconnecting piece 131 far from plug division 132, and flange 133 is used to drive with first The output end of motivation structure 140 connects.When transmission shaft 130 and clutch shaft 120 assemble, plug division 132 is from clutch shaft 120 far from first Spliced eye 122 is inserted into setting position in one end of engaging section 123.Since plug division 132 and spliced eye 122 are non-revolved body shape Adaptation shape, therefore it is circumferentially fixed between transmission shaft 130 and clutch shaft 120, when driving transmission shaft 130 to rotate, clutch shaft 120 It will rotate synchronously；Simultaneously as clutch shaft 120 is to be sheathed on transmission shaft 130, slide axially cooperation between the two, therefore clutch Axis 120 can slide axially with respect to transmission shaft 130.It is understood that in other embodiments of the invention, above-mentioned plug division It can also be compatible other shapes, such as prism-shaped with spliced eye, as long as it can guarantee the clutch shaft and transmission shaft after cooperation Between it is circumferentially fixed.

For above-mentioned first driving mechanism 140, referring to figure 3., driven in combination with Fig. 1, Fig. 2 and Fig. 4 to Fig. 7, first Motivation structure 140 is set to the one end of transmission shaft 130 far from plug division 132 comprising motor 141 and gearbox 142, gearbox 142 One end connect with motor 141, the other end is connect by above-mentioned flange 133 with transmission shaft 130.First driving mechanism, 140 work As when be able to drive transmission shaft 130 rotate, thus be further driven to clutch shaft 120 rotation.

It further, can be under the driving of the first driving mechanism 140 in base for guarantee clutch shaft 120 and transmission shaft 130 Stablize rotation in the mounting hole of seat 110, which further includes no inner-ring bearing 160 and bearing 170.Specifically, two No inner-ring bearing 160 is set to side of the above-mentioned positioning step far from the first engaging section 123, is coaxially embedded at above-mentioned mounting hole 111, and it is sheathed on the outer wall of clutch shaft 120；Bearing 170 is embedded at mounting hole 111, and its inner ring is sheathed on the connection of transmission shaft Portion 131.On the one hand no inner-ring bearing 160 and bearing 170 can act on clutch shaft 120 and its carrying of transmission shaft 130, another party Face can also reduce the frictional resistance in 130 rotation process of clutch shaft 120 and transmission shaft.

Further, to avoid adjacent bearing 170 and no inner-ring bearing 160 axially moveable and produce in mounting hole Life influences each other, which further includes distance sleeve 180, and distance sleeve 180 is embedded at above-mentioned mounting hole 111 and covers Set on the outer wall of clutch shaft 120, meanwhile, distance sleeve 180 between bearing 170 and no inner-ring bearing 160, both ends respectively with Bearing 170 is supported with no inner-ring bearing 160.The setting of distance sleeve 180 on the one hand being capable of isolation bearing 170 and no inner-ring bearing 160, avoid between isolation bearing 170 and no inner-ring bearing 160 may be axially moveable and to interfering each other, or to from The rotation of sympodium 120 and transmission shaft 130 interferes；On the other hand, 180 both ends of distance sleeve respectively with bearing 170 and nothing Inner-ring bearing 160 supports, and is stably installed at bearing 170 and no inner-ring bearing 160 in mounting hole 111.

Still further, to make above-mentioned no inner-ring bearing 160, bearing 170 and distance sleeve 180 in solid in mounting hole Fixed, drive module 100 further includes end cap 143 and unshowned positioning tube.Referring to figure 3. and Fig. 4, positioning tube are integrally cylindrical in shape Structure is coaxially embedded between flange 133 and bearing 170, and both ends are abutted with flange 133 and bearing 170 respectively；End cap 143 One end be fixed on gearbox 142, the other end protrudes into above-mentioned mounting hole 111 and abuts with the positioning tube, so that no inner-ring bearing 160, bearing 170 and distance sleeve 180 being axially fixed between end cap 143 and positioning step along mounting hole 111.

It is understood that even if the first driving mechanism in above-described embodiment includes motor and gearbox, but of the invention In other embodiments, the first driving mechanism can also be that other are capable of the mechanism of any output rotary motion, such as rotary cylinder.

For above-mentioned second driving mechanism 150, referring to figure 3., driven in combination with Fig. 1, Fig. 2 and Fig. 4 to Fig. 7, second Motivation structure 150 is set to the side of pedestal 110 comprising actuator 151 and return unit 152, actuator 151 are above-mentioned for driving Clutch shaft 120 is along axially to extended position to retracted position, and return unit is for driving above-mentioned clutch shaft 120 along axially to receipts It condenses to set and moves to extended position.Wherein, it can be engaged with shaft 200 in extended position clutch shaft 120, in retracted position clutch shaft It is separated between 120 and shaft 200.

Specifically, actuator 151 includes push plate 1511 and cylinder 1512, one end of push plate 1511 is equipped with through-hole, the other end It is connect with the output end of cylinder 1512.The outer wall that one end that push plate 1511 is equipped with through-hole passes through pedestal 110 enters above-mentioned installation Hole 111, and it is sheathed on one end that clutch shaft 120 is equipped with the first engaging section 123.To enable push plate 1511 along mounting hole 111 Axial-movement, pedestal 110 are equipped with the channel of perforation in the side wall of corresponding push plate 1511, and in the present embodiment, which integrally passes through Logical pedestal 110, and along the end face for axially extending to the one end of pedestal 110 far from return unit 152 of mounting hole.Cylinder 1512 can Driving push plate 1511 is moved along the axial direction toward close to return unit 152 of clutch shaft 120, so that push plate 1511 and clutch shaft 120 locating flange 121 abuts, so that clutch shaft 120 further be pushed to slide into positioning with respect to transmission shaft 130 from extended position Flange 121 is abutted with positioning step, and clutch shaft 120 is in retracted position (as shown in Figure 4) at this time.

Return unit 152 is placed in above-mentioned mounting hole 111, and is set to the one end of clutch shaft 120 far from the first engaging section 123, One end of return unit 152 abuts the perhaps fixed other end with clutch shaft 120 and abuts or fix with transmission shaft 130.Return unit can To provide continuous elastic abutting force to clutch shaft 120, guarantee to stablize when clutch shaft 120 stretches out state with engaging for shaft 200.This In embodiment, return unit 152 is spring, and spring pocket is set to plug division 132 and is placed in the countersunk head slot 124 of clutch shaft 120, spring One end abutted with clutch shaft 120, the other end is abutted with the interconnecting piece 131 of transmission shaft 130.It is understood that in invention In other embodiments, return unit can also be elastic element made of rubber, silica gel elastomeric material, be also possible to it is independent and With the power mechanism of clutch axis connection, as long as it can be in cylinder and the reseting procedure of push plate, driving clutch shaft self-constriction position Put back into extended position.

Further, all unified for the position that reaches clutch shaft 120 every time when being reset to extended position, thus realize with The accurate engagement of shaft 200, the drive module 100 further include positive stop strip 134, and positive stop strip 134 is fixed on the grafting of transmission shaft 130 Portion 132 and its both ends extend to except the profile of plug division 132 along the axially direction perpendicular to transmission shaft 130, grafting A " T " shape structure is formed between portion 132 and positive stop strip 134.The inner wall of clutch shaft 120 is equipped with and axially extends and and positive stop strip 134 compatible limit guide grooves 125, along the axial direction of clutch shaft 120, one end of limit guide groove 125 is equipped with institute through clutch shaft 120 One end of the first engaging section 123 is stated, it is limit guide groove 125 that the other end of limit guide groove 125, which extends to 120 middle part of clutch shaft, The other end closing, positive stop strip 134 be inserted into limit guide groove 125.During return unit 152 drives clutch shaft 120 to reset, work as limit The side wall of the position one end of guide groove 125 far from the first engaging section 123 moves to when abutting with above-mentioned positive stop strip 134, then clutch shaft 120 It keeps stablizing under the collective effect of return unit 152 and positive stop strip 134, clutch shaft 120 is located at above-mentioned extended position at this time.

Further, it to keep clutch shaft 120 slidably more smoothly with respect to transmission shaft 130, often injects between the two Lubricating grease, but spliced eye 122 is connected to close to one end of the first engaging section 123 with external environment, therefore the lubricating grease pole injected holds It is volatile.Further, it is the volatilization for reducing lubricating grease, makes muchly to keep lubrication effect between clutch shaft 120 and transmission shaft 130 Fruit, above-mentioned spliced eye 122 are equipped with sealing plate 126 close to 123 one end of the first engaging section, which is located at transmission shaft 130 Between the first engaging section 123 and the above-mentioned spliced eye 122 of integral sealing.

Further, for convenience of to lubricating grease is injected in spliced eye, make to keep between clutch shaft 120 and transmission shaft 130 The environment of lubrication, the drive module 100 further include the first pump nozzle 127.Sealing plate 126 is equipped with and leans on above-mentioned spliced eye 122 The oil filler point of the side connection of nearly transmission shaft 130, the first pump nozzle 127 are set at above-mentioned oil filler point, and staff can be by the One pump nozzle 127 carries out oiling to spliced eye 122 in the side of transmission shaft 130.

It similarly, is the environment that lubrication is also kept between no inner-ring bearing 160 for making clutch shaft 120, the drive module It further include the second pump nozzle 128.Specifically, pedestal 110 also is provided with being connected to mounting hole 111 at corresponding no inner-ring bearing 160 Oil filler point, the second pump nozzle 128 be set to above-mentioned corresponding no inner-ring bearing 160 oil filler point at.

Next it makes an explanation to above-mentioned shaft 200.

For above-mentioned shaft 200, Fig. 9 and Figure 10 are please referred to, which respectively show the assembly of shaft 200 and mounting base 300 The decomposition diagram of schematic diagram and shaft 200 and mounting base 300, please in combination with Fig. 1 to Fig. 8, shaft 200 includes swelling Axis 210 and clutch block 220.Specifically, it is in rotary structure that expansion shaft 210 is whole comprising supporting part 211 and with being located in The fixed part 212 at the both ends of supporting part 211, wherein the diameter of fixed part 212 is less than the diameter of supporting part 211.Clutch block 220 Entirety is in the form of a column structure, and one end is equipped with second engaging section 221 compatible with above-mentioned first engaging section 123, in the present embodiment, Second engaging section 221 engages protrusion to be compatible with above-mentioned mesh groove, this two engagement protrusions are with the axis of clutch block 220 Centered on be centrosymmetric distribution.At least one fixed part 212 of expansion shaft 210 is connected with above-mentioned clutch block 220, the present embodiment In, clutch block 220 is equipped with fixation hole far from one end of above-mentioned second engaging section 220, and clutch block is sheathed on by above-mentioned fixation hole The fixed part 220 of expansion shaft 210, and by flat key 230 realized with expansion shaft 210 it is circumferentially fixed, while by pin realization and The axial restraint of expansion shaft 210.It is understood that in other embodiments of the invention, the first engaging section is engaged with second Portion can also be other shapes, if can make engagement after clutch shaft and clutch block between it is circumferentially fixed, such as: one In a little embodiments, the first engaging section is two engagement being centrosymmetric with the axis of clutch shaft protrusions, correspondingly, the second engagement Portion is compatible mesh groove therewith；Another example is: in other embodiments of the invention, the first engaging section be axis with from The prism that the axis of sympodium 120 is overlapped, the second engaging section are prism compatible with above-mentioned prism hole, herein a different citing. It is understood that in other embodiments of the invention, clutch block and expansion shaft are also possible to integral molding.

Next mounting base 300 and mounting plate 400 are illustrated.

For above-mentioned mounting base 300, Figure 10 is please referred to, in combination with Fig. 1 to Fig. 9, it is fixed which is sheathed on two Portion 212, for carrying shaft 200 and shaft 200 being rotatably installed on mounting plate 400 indirectly.Mounting base 300 includes one Shape structure, the wall coaxial of the tubular structure are connected with more than two defining flanges disposed in parallel, the two or more limit convex It is equidistantly arranged between edge.To reduce frictional resistance when shaft 200 rotates between mounting base 300, mounting base 300 further includes Bearing 310, bearing 310 are embedded at above-mentioned mounting base 300 and are sheathed on fixed part 212.

For above-mentioned mounting plate 400, Fig. 1 is please referred to, in combination with Fig. 2 to Figure 10, the plate-like structure of mounting plate 400, peace Spacing between the thickness of loading board 400 and adjacent two defining flange is adapted.The vertical straight setting of two mounting plates 400, and two mounting plates 400 the same end is equipped with the side opening of U-shaped, the side opening along stand histogram to width and mounting base 300 tubular structure it is outer Diameter is adapted, and mounting base 300 accesses above-mentioned side opening by two adjacent defining flange parallel cards, then mounting base 300 is along axial direction Opposite mounting plate 400 is fixed.

Drive module 100 is set to the side that mounting plate 400 deviates from supporting part 211, the first engaging section 123 of clutch shaft 120 Be oppositely arranged with the second engaging section 221 in shaft 200, when 200 to the second engaging section 221 of rotating shaft and the first engaging section just Clock synchronization, the second driving mechanism 150 can drive clutch shaft 120 to move to extended position and engage with the second engaging section 221, to complete to fill Match.

Further, to make the first driving mechanism 140 that can drive biography after clutch shaft 120 is engaged with shaft 200 Moving axis 130 rotate, avoid clutch shaft 120 dally, above-mentioned drive module 100 further include sensor 190 and controller (in figure not Show), sensor 190 and the first above-mentioned driving mechanism 140 are connect with controller.Sensor 190 is set on pedestal 110, And when clutch shaft 120 is located at above-mentioned extended position, sensor 190 is just corresponding with the position of above-mentioned locating flange 121.When When the stretching of first engaging section 123 is engaged with the second engaging section 221, sensor 190 is able to detect that clutch shaft 120 is in and stretches out position It sets, and the information is fed back into controller, then the first driving mechanism 140 can drive transmission shaft 130 to rotate, and then successively band Dynamic clutch shaft 120 and shaft 200 rotate, to realize winding and unreel process.

It is briefly described below in conjunction with the course of work of each attached drawing to this winding/unwinding device:

When needing to install new reel, first ensure that clutch shaft 120 is in retracted position under the action of actuator 151, Then reel interference is sheathed on shaft 200 and shaft 200 is successively installed on mounting base 300 and mounting plate 400, while making Next shaft 200 is turned to the first engaging section 123 towards the first engaging section 123 of drive module 100 by two engaging sections 221 It is aligned with the second engaging section 221, actuator 151 drives push plate to move to the direction far from return unit 152 later, then clutch shaft 120 move to extended position from above-mentioned retracted position under the reset response of return unit 152, and clutch shaft 120 and shaft 200 are completed Engagement；At the same time, sensor 190 detects that clutch shaft 120 is in extended position, then controller can control the first driving mechanism 140 movements to drive 200 common rotation of transmission shaft 130, clutch shaft 120 and shaft, and then realize retractable volume process.

When needing replacing new reel, the driving clutch shaft 120 of actuator 151 is made to overcome the elastic force of return unit 152 first It from extended position to retracted position, is then separated between drive module 100 and shaft 200, staff can be by shaft 200 It removes, then separates reel with shaft 200, next renew the explanation of a process paragraph as above for reel.

The embodiment of the present invention provides a winding/unwinding device and the drive module 100 for the winding/unwinding device, drives mould Block 100 includes clutch shaft 120 and driving assembly.Wherein, one end of clutch shaft 120 is equipped with the first engaging section 123, first engagement Portion 123 with the second engaging section 221 on external hinge 200 for engaging, so that clutch shaft 120 and shaft 200 are circumferentially fixed.It drives Dynamic component includes the first driving mechanism 140 and the second driving mechanism 150, and the first driving mechanism 140 is for driving above-mentioned clutch shaft 120 circumferentially rotate, and the second driving mechanism 150 is for driving above-mentioned clutch shaft 120 axially movable so that above-mentioned first engaging section 123 engage or separate with the second engaging section 221.When clutch shaft 120 is engaged with shaft 200, clutch shaft 120 with shaft 200 weeks To fixation, so above-mentioned drive module 100 can drive shaft 200 to rotate synchronously when driving clutch shaft 120 to circumferentially rotate.When need When dismantling shaft 200, it is only necessary to make the second driving mechanism 150 driving clutch shaft 120 along its axial direction to the side far from shaft 200 It moves and is separated with shaft 200.

Compared with winding/unwinding device currently on the market is using gear set transmission, drive module provided in an embodiment of the present invention Be axially moved can be realized by driving clutch shaft 120 and be engaged with shaft 200, without with shaft 200 arranged in dislocation, can Reduce the whole occupied space of the device；And the transmission components such as gear are omitted, keep the dismounting of shaft 200 very convenient.This Outside, the back lash of the two can be done in design when the first engaging section 123 is engaged with shaft 200 minimum even without nibbling Gap is closed, therefore the transmission between the drive module and shaft is precisely reliable.

Based on the same inventive concept, the present invention also provides a kind of printing device, which includes in above-described embodiment Winding/unwinding device, be: the printing device also includes the drive module in above-described embodiment.Similarly, in the printing device Winding/unwinding device entirety occupied space it is smaller, the dismounting of the shaft of winding/unwinding device is also very convenient, in addition, winding/unwinding device Rotation is also precisely reliable.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this It under the thinking of invention, can also be combined between the technical characteristic in above embodiments or different embodiment, step can be with It is realized with random order, and there are many other variations of different aspect present invention as described above, for simplicity, they do not have Have and is provided in details；Although the present invention is described in detail referring to the foregoing embodiments, the ordinary skill people of this field Member is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill Art feature is equivalently replaced；And these are modified or replaceed, each reality of the present invention that it does not separate the essence of the corresponding technical solution Apply the range of a technical solution.