CN214083682U

CN214083682U - Unwinding mechanism, wall paper spread and paste device and wall paper spread and paste robot

Info

Publication number: CN214083682U
Application number: CN202022171963.1U
Authority: CN
Inventors: 朱晓; 陈威霖; 肖国新; 王齐美; 马冬
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-31
Anticipated expiration: 2030-09-28

Abstract

The utility model belongs to the technical field of the construction equipment, an unwinding mechanism is disclosed, the wall paper is spread and is pasted device and wall paper and spread and paste the robot, wherein, unwinding mechanism includes the fixed bolster, the center pin, fixed stay subassembly and activity compress tightly the subassembly, the material of treating the material loading is rolled up the cover and is established on the center pin, fixed stay unit mount is in the one end of fixed bolster, and fixed stay unit is fixed along the axis direction of center pin with the fixed bolster, the one end and the fixed stay unit fixed connection of center pin, the activity compresses tightly the one end of subassembly and the other end of center pin along axis direction sliding connection, the other end is provided with the circular conical surface, the activity compresses tightly the subassembly through the circular conical surface and installs in the other end of fixed bolster, the circular conical surface can make the activity compress tightly a terminal surface that the subassembly compressed tightly the material book and drive other end face that the material was rolled up of material and laminate in fixed stay unit. The end face of the material roll is kept flat by a simple structure without an additional driving piece, the equipment cost can be reduced, and the operation capacity of the equipment in a narrow space can be improved.

Description

Unwinding mechanism, wall paper spread and paste device and wall paper spread and paste robot

Technical Field

The utility model relates to a construction equipment technical field especially relates to an unwinding mechanism, wall paper are spread and are pasted device and wall paper and spread and paste robot.

Background

Spread the in-process of pasting the wall paper at wall paper shop robot, need the manual work to put into the assigned position of robot with the wall paper book, because the both sides of wall paper book are not complete parallel and level, consequently need provide certain effort to the terminal surface of wall paper to make the wall paper terminal surface level and smooth. The wall paper of current is laid and is pasted robot is generally through setting up a driving piece to provide the effort from the both sides of wall paper, this kind of project organization is more complicated, and equipment overall cost is higher, and equipment volume is great, is unfavorable for equipment operation in narrow and small space.

Based on the above situation, it is necessary to design a new wallpaper pasting robot.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the utility model provides an unwinding mechanism, wall paper shop paste device and wall paper shop paste robot, can make the terminal surface of material book keep smooth with the simple structure of no extra driving piece.

To achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, an unwinding mechanism is provided, including

Fixing a bracket;

the central shaft is sleeved with a material coil to be loaded;

the fixed support assembly is arranged at one end of the fixed support, the fixed support assembly and the fixed support are fixed along the axial direction of the central shaft, and one end of the central shaft is fixedly connected with the fixed support assembly;

one end of the movable pressing component is connected with the other end of the central shaft in a sliding mode along the axis direction, the other end of the movable pressing component is provided with a conical surface, the movable pressing component is installed at the other end of the fixed support through the conical surface, and the conical surface can enable the movable pressing component to press one end face of the material roll and drive the other end face of the material roll to be attached to the fixed support component.

Specifically, the dead weights of the material roll and the movable pressing assembly act on one end of the fixed support through the conical surface, so that the acting force of the fixed support on the movable pressing assembly forms component forces in the vertical upward direction and the axial direction, wherein the axial component force can enable the movable pressing assembly to be axially pressed on one end face of the material roll and enable the other end face of the material roll to be attached to the fixed support assembly, on one hand, the axial pressing of the material roll is realized on the premise of no external power, and the end face of the material roll is kept flat; on the other hand, the material roll can be attached to the fixed supporting component (the fixed supporting component is axially fixed relative to the fixed support, so that the fixed supporting component can be used as a positioning standard) on the premise of no external power, and the positioning precision of the material roll during feeding is improved; in another aspect, the design without external power makes the equipment structure simpler and more compact, thereby reducing the equipment cost and improving the operation capacity of the equipment in a narrow space.

Optionally, the unwinding mechanism is used for loading the wallpaper roll.

Optionally, the center pin includes main tributary supporting axle and auxiliary connection axle, auxiliary connection axle is fixed in through threaded connection the main tributary supporting axle is kept away from the one end of fixed stay subassembly, auxiliary connection axle with the activity compresses tightly subassembly along axis direction sliding connection.

As an alternative, the movable compression assembly comprises:

the conical surface is arranged on the outer surface of the movable pressing seat;

and one end of the pressing piece is rotatably connected with the movable pressing seat around the axis, and the other end of the pressing piece can abut against the end face of the material roll and is connected with the central shaft.

Specifically, by arranging the pressing piece in rotary connection with the movable pressing seat, on one hand, effective transmission of extrusion force in the axial direction can be realized, the axial pressing of the pressing piece on one end face of the material roll is ensured, the reliability that the other end face of the material roll is attached to the fixed supporting component is ensured, and the end face flatness and the positioning accuracy of the material roll are further ensured; on the other hand can realize the material roll with the sound separation of fixed bolster makes the piece that compresses tightly can follow unreeling of material roll rotates together, and then effectively reduces unreel the in-process to the dragging of material roll, effectively improves the ride comfort and the stability of material loading are rolled up.

Optionally, the movable pressing seat is of a circular truncated cone structure, and the circumferential side wall of the movable pressing seat forms the conical surface. The center of the movable pressing seat is provided with a first rotating shaft hole, and the pressing piece is inserted into the first rotating shaft hole and is rotatably connected with the first rotating shaft hole.

As an alternative, the pressing member includes:

the pressing rotating shaft is inserted into the movable pressing seat and is connected with the movable pressing seat in a rotating mode around the axis, and the pressing rotating shaft is connected with the central shaft in a sliding mode along the axis direction;

and the compression end plate is fixedly arranged on the compression rotating shaft and can abut against the end surface of the material roll.

Specifically, through will compress tightly the piece and set up to compressing tightly the rotation axis and compressing tightly the fashioned assembled structure of components of a whole that can function independently of end plate, can guarantee on the one hand compress tightly the rotation axis and possess higher shaping precision, on the other hand can reduce the shaping degree of difficulty and the whole production degree of difficulty of each part that compresses tightly the piece.

Optionally, the compressing end plate is mounted on one side of the compressing rotating shaft close to the fixed support component.

Optionally, the pressing rotating shaft is rotatably connected with the movable pressing base through a bearing piece.

Further, compress tightly the rotation axis and include first pivot portion and first flange portion, first flange portion set up in being close to of first pivot portion the one end of fixed stay subassembly, compress tightly end plate fixed mounting in first flange portion, first pivot portion is installed in the activity compresses tightly the seat, just first pivot portion with the activity compresses tightly and is provided with the bearing spare between the seat.

Optionally, the compressing end plate is provided with a first center yielding hole, and the central shaft penetrates through the first center yielding hole and is connected with the compressing rotating shaft.

Optionally, the diameter of the pressing end plate is larger than that of the material roll before unreeling.

As an alternative, the movable compression assembly further comprises:

the first combined bearing is sleeved on the compression rotating shaft and comprises a first needle bearing and a first thrust ball bearing, the first needle bearing is used for bearing the radial acting force between the compression rotating shaft and the movable compression seat, and the first thrust ball bearing is used for bearing the axial acting force between the compression rotating shaft and the movable compression seat.

Particularly, through setting up the first combination bearing that can transmit radial effort and axial effort simultaneously, on the one hand can make the rotation axis that compresses tightly has better bearing capacity and job stabilization nature, on the other hand also can make the overall structure of activity compresses tightly the subassembly compacter.

Optionally, the movable pressing assembly further comprises a first deep groove ball bearing, and the first deep groove ball bearing is sleeved on the pressing rotating shaft and located on one side, far away from the fixed supporting assembly, of the first combined bearing. Specifically, by providing the first deep groove ball bearing, the pressing rotary shaft can be effectively axially fixed.

Optionally, the movable pressing assembly further includes a first bearing cover and a first pressing sheet, the first bearing cover is mounted at one end of the movable pressing base, which is far away from the fixed supporting assembly, and abuts against an outer ring of the first deep groove ball bearing, so as to fix the first deep groove ball bearing to the movable pressing base; the first pressing piece is installed at one end, far away from the fixed supporting assembly, of the pressing rotating shaft and abuts against the inner ring of the first deep groove ball bearing, so that the pressing rotating shaft is fixed on the movable pressing seat together by matching with the first thrust ball bearing.

As an alternative, the fixed support assembly comprises:

the fixed support seat is provided with a positioning groove, and one end of the fixed support is inserted into the positioning groove and limits the axial displacement of the fixed support seat;

and one end of the positioning piece is connected with the fixed supporting seat in a rotating mode around the axis, and the other end of the positioning piece can abut against the end face of the material roll and is connected with the central shaft.

Specifically, the positioning piece rotationally connected with the fixed supporting seat is arranged, so that on one hand, reliable limiting can be provided for the material roll along the axis direction, a positioning reference can be provided for the material roll, and the positioning precision of the material roll is further improved; on the other hand can realize the material roll with the sound separation of fixed bolster makes the setting element can follow unreeling of material roll rotates together, and then effectively reduces to unreel the in-process right the dragging of material roll is rolled up, effectively improves the ride comfort and the stability of material loading are rolled up.

Optionally, the fixed bolster is cylindric structure, the constant head tank 360 degrees encircle set up in on the circumference wall of fixed bolster. The center of the fixed support seat is provided with a second rotating shaft hole, and the positioning piece is inserted into the second rotating shaft hole and is rotatably connected with the second rotating shaft hole.

As an alternative, the positioning member includes:

the positioning rotating shaft is inserted into the fixed supporting seat and is rotationally connected with the fixed supporting seat around the axis, and the positioning rotating shaft is fixedly connected with the central shaft;

and the positioning end plate is fixedly arranged on the positioning rotating shaft and can abut against the end surface of the material roll.

Specifically, through inciting somebody to action the setting element sets up to the fashioned assembled structure of components of a whole that can function independently of location rotation axis and location end plate, can guarantee on the one hand the location rotation axis possesses higher shaping precision, and on the other hand can reduce the shaping degree of difficulty and the whole production degree of difficulty of each part of setting element.

Optionally, the positioning end plate is mounted on one side of the positioning rotating shaft close to the movable compression assembly.

Optionally, the positioning rotating shaft is rotatably connected with the fixed support seat through a bearing piece.

Further, the location rotation axis includes second pivot portion and second flange portion, second flange portion set up in being close to of second pivot portion the activity compresses tightly the one end of subassembly, location end plate fixed mounting in second flange portion, second pivot portion is installed in the fixed bolster, just second pivot portion with be provided with the bearing spare between the fixed bolster.

Optionally, the positioning end plate is provided with a second center yielding hole, and the central shaft penetrates through the second center yielding hole and is connected with the supporting rotating shaft.

Optionally, the diameter of the positioning end plate is larger than the diameter of the material roll before unreeling. Further, the diameter of the positioning end plate is equal to the diameter of the compression end plate.

Optionally, the positioning rotating shaft is fixedly connected with the central shaft through threads.

Optionally, the notch of the positioning groove is provided with a guide slope. Specifically, the guide slope can improve the assembly efficiency of the fixed support seat and the fixed support.

As an alternative, the fixed support assembly further comprises:

and the second combined bearing is sleeved on the positioning rotating shaft and comprises a second needle bearing and a second thrust ball bearing, the second needle bearing is used for bearing the radial acting force between the positioning rotating shaft and the fixed supporting seat, and the second thrust ball bearing is used for bearing the axial acting force between the positioning rotating shaft and the fixed supporting seat.

Particularly, through the second combined bearing capable of transmitting radial acting force and axial acting force, on one hand, the positioning rotating shaft can have better bearing capacity and working stability, and on the other hand, the whole structure of the fixed supporting assembly can be more compact.

Optionally, the fixed support assembly further includes a second deep groove ball bearing, and the second deep groove ball bearing is sleeved on the positioning rotating shaft and located on one side of the second combined bearing far away from the movable pressing assembly. Specifically, by providing the second deep groove ball bearing, the positioning rotation shaft can be effectively axially fixed.

Optionally, the fixed support assembly further includes a second bearing cap and a second pressing piece, the second bearing cap is mounted at one end of the fixed support seat, which is far away from the movable pressing assembly, and abuts against an outer ring of the second deep groove ball bearing, so as to fix the second deep groove ball bearing to the fixed support seat; the second pressing piece is arranged at one end, far away from the movable pressing assembly, of the positioning rotating shaft and is abutted against the inner ring of the second deep groove ball bearing, so that the positioning rotating shaft is fixed to the fixed supporting seat together by matching with the second thrust ball bearing.

As an alternative, the fixing bracket comprises a first support plate, a second support plate and a connecting plate, wherein the first support plate and the second support plate are connected through the connecting plate;

the top end of the first supporting plate is provided with an inclined surface for supporting the movable pressing component, and the inclined surface is attached to the conical surface; and/or the top ends of the first supporting plate and the second supporting plate are provided with positioning holes which penetrate through the axis, and the fixed supporting component and the movable pressing component are both arranged in the positioning holes.

Specifically, the inclined surface is arranged, so that the inclined surface can be matched with the conical surface for use, the movable pressing component is further reliably pressed on one end surface of the material roll in the axial direction, and the other end surface of the material roll is attached to the fixed supporting component; through setting up the locating hole, can to fixed stay subassembly with the activity compresses tightly the subassembly and carry out radial positioning on the horizontal plane, make the position accuracy and the reliability of center pin are higher.

Optionally, the positioning hole is an open arc hole, the positioning hole in the first supporting plate is matched with the surface shape of the fixed supporting seat, and the positioning hole in the second supporting plate is matched with the surface shape of the movable pressing seat. On one hand, the opening arc hole can improve the assembly efficiency of the fixed support assembly, the movable pressing assembly and the fixed support, and on the other hand, the design matched with the surface shapes of the fixed support seat and the movable pressing seat can improve the reliability and the precision of the fixed support in radial positioning of the fixed support seat and the movable pressing seat.

Optionally, the groove width of the positioning groove is equal to the thickness of the first supporting plate.

The second aspect provides a wall paper shop pastes device, spreads subsides actuating mechanism and foretell unwinding mechanism including the wall paper, unwinding mechanism can give wall paper shop pastes actuating mechanism and provides the wall paper.

Specifically, through mutually supporting unwinding mechanism and wall paper are spread and are pasted actuating mechanism, can realize the automation of wall paper material loading and spread subsides, improve whole operating efficiency.

In a third aspect, a wallpaper paving and pasting robot is provided, which comprises a moving chassis, a lifting device and the wallpaper paving and pasting device, wherein the wallpaper paving and pasting device is installed on the moving chassis through the lifting device.

Particularly, the movable chassis and the lifting device are arranged, so that the wallpaper paving and pasting robot can complete automatic wallpaper paving and pasting on the whole operation space.

The utility model has the advantages that: providing an unwinding mechanism, and enabling the supporting acting force of the fixed support to the movable pressing assembly to form component forces in a vertical upward direction and an axial direction through the conical surface, wherein the axial component force can enable the movable pressing assembly to be axially pressed on one end face of the material roll and enable the other end face of the material roll to be attached to the fixed supporting assembly, and on one hand, the design realizes axial pressing on the material roll on the premise of no external power, so that the end face of the material roll is kept flat; on the other hand can realize under the prerequisite that need not external power the material book with the laminating of fixed stay subassembly (fixed stay subassembly is relative fixed bolster axial, consequently fixed stay subassembly can regard as the positioning standard), improve the positioning accuracy when rolling up the material loading. Still provide a wall paper and spread device and wall paper and spread machine people that paste that possesses above-mentioned unwinding mechanism, can realize the automation that the wall paper was spread and is pasted.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of an unwinding mechanism according to an embodiment;

FIG. 2 is an exploded view of the unwinding mechanism according to the embodiment;

FIG. 3 is a schematic diagram of the force applied by the fixed bracket to the movable pressing assembly according to the embodiment;

FIG. 4 is a top view of the unwinding mechanism according to the embodiment;

FIG. 5 is a cross-sectional view taken along the line A-A in FIG. 4;

FIG. 6 is a partial enlarged view of the position B shown in FIG. 5;

FIG. 7 is an exploded view of the movable compaction assembly according to an embodiment;

FIG. 8 is an enlarged view of a portion of the portion C shown in FIG. 5;

FIG. 9 is an exploded view of the stationary support assembly according to an embodiment;

FIG. 10 is an exploded view of a central shaft according to an embodiment;

fig. 11 is a schematic structural view of the wallpaper pasting robot according to the embodiment.

In fig. 1 to 2, 4 to 11:

100. an unwinding mechanism;

1. fixing a bracket; 11. a first support plate; 12. a second support plate; 13. a connecting plate; 14. positioning holes;

2. a central shaft; 21. a main support shaft; 22. an auxiliary connecting shaft;

3. fixing the support component; 31. fixing the supporting seat; 311. positioning a groove; 312. a second spindle hole; 32. positioning the rotating shaft; 321. a second rotating shaft part; 322. a second flange portion; 33. positioning the end plate; 331. a second center relief hole; 34. a second combination bearing; 35. a second deep groove ball bearing; 36. a second bearing cap; 37. a second compression piece;

4. a movable compression assembly; 41. a movable pressing seat; 411. a conical surface; 412. a first spindle hole; 42. compressing the rotating shaft; 421. a first shaft portion; 422. a first flange portion; 43. compressing the end plate; 431. a first center relief hole; 44. a first combination bearing; 45. a first deep groove ball bearing; 46. a first bearing gland; 47. a first pressing sheet;

5. material rolls;

200. the wallpaper is paved with an actuating mechanism; 300. moving the chassis; 400. a lifting device.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In a first aspect, an unwinding mechanism 100 is provided, as shown in fig. 1 and fig. 2, including a fixed support 1, a central shaft 2, a fixed support component 3 and a movable pressing component 4, a material roll 5 to be loaded is sleeved on the central shaft 2, the fixed support component 3 is installed at one end of the fixed support 1, and the fixed support component 3 is fixed with the fixed support 1 along the axis direction of the central shaft 2, one end of the central shaft 2 is fixedly connected with the fixed support component 3, one end of the movable pressing component 4 is slidably connected with the other end of the central shaft 2 along the axis direction, the other end is provided with a conical surface 411, the movable pressing component 4 is installed at the other end of the fixed support 1 through the conical surface 411, and the conical surface 411 can enable the movable pressing component 4 to press one end face of the material roll 5 and drive the other end face of the material roll 5 to be attached to the fixed support component 3. Specifically, the deadweights of the material roll 5 and the movable pressing component 4 act on one end of the fixed support 1 through the conical surface 411, so that the acting force of the fixed support 1 on the movable pressing component 4 forms component forces in the vertical upward direction and the axial direction, specifically as shown in fig. 3, wherein the axial component force can enable the movable pressing component 4 to be axially pressed on one end surface of the material roll 5 and enable the other end surface of the material roll 5 to be attached to the fixed support component 3, on one hand, the axial pressing on the material roll 5 is realized on the premise of no external power, and the end surface of the material roll 5 is kept flat; on the other hand, the material roll 5 can be attached to the fixed supporting component 3 (the fixed supporting component 3 is axially fixed relative to the fixed support 1, so that the fixed supporting component 3 can be used as a positioning standard) on the premise of no external power, and the positioning precision of the material roll 5 during feeding is improved; in another aspect, the design without external power makes the equipment structure simpler and more compact, thereby reducing the equipment cost and improving the operation capacity of the equipment in a narrow space.

Optionally, the unwinding mechanism 100 is used for loading wallpaper rolls.

Alternatively, as shown in fig. 10, the central shaft 2 includes a main supporting shaft 21 and an auxiliary connecting shaft 22, the auxiliary connecting shaft 22 is fixed to one end of the main supporting shaft 21 away from the fixed supporting component 3 through a threaded connection, and the auxiliary connecting shaft 22 is slidably connected to the movable pressing component 4 along the axial direction.

In this embodiment, as shown in fig. 4 to 7, the movable pressing assembly 4 includes a movable pressing base 41 and a pressing member, the conical surface 411 is disposed on an outer surface of the movable pressing base 41, one end of the pressing member is rotatably connected to the movable pressing base 41 around an axis, and the other end of the pressing member can abut against an end surface of the material roll 5 and the connection central shaft 2. Specifically, by arranging the pressing piece in rotary connection with the movable pressing seat 41, on one hand, effective transmission of extrusion force in the axial direction can be realized, the axial pressing of the pressing piece on one end face of the material roll 5 is ensured, the reliability that the other end face of the material roll 5 is attached to the fixed supporting component 3 is ensured, and the end face smoothness and the positioning accuracy of the material roll 5 are further ensured; on the other hand can realize material book 5 and the sound separation of fixed bolster 1, makes to compress tightly the piece and can follow unreeling of material book 5 and rotate together, and then effectively reduces and unreels the in-process and to rolling up dragging of material book 5, effectively improves the ride comfort and the stability of material book 5 material loading.

Optionally, the movable pressing base 41 is a circular truncated cone structure, and a circular side wall of the movable pressing base 41 forms a conical surface 411. The center of the movable pressing base 41 is provided with a first rotating shaft hole 412, and the pressing piece is inserted into the first rotating shaft hole 412 and is rotatably connected with the first rotating shaft hole 412.

In this embodiment, the pressing member includes a pressing rotary shaft 42 and a pressing end plate 43, the pressing rotary shaft 42 is inserted into the movable pressing base 41 and is connected to the movable pressing base 41 in a rotatable manner about the axis, the pressing rotary shaft 42 is connected to the central shaft 2 in a sliding manner along the axis, the pressing end plate 43 is fixedly mounted on the pressing rotary shaft 42, and the pressing end plate 43 can abut against the end face of the material roll 5. Specifically, through the set up as compressing tightly the fashioned assembled structure of components of a whole that compresses tightly rotation axis 42 and compressing tightly end plate 43 with compressing tightly the piece, can guarantee on the one hand to compress tightly rotation axis 42 and possess higher shaping precision, on the other hand can reduce the shaping degree of difficulty and the whole production degree of difficulty of each part that compresses tightly the piece.

Alternatively, the pressing end plate 43 is installed at a side of the pressing rotary shaft 42 adjacent to the fixed support member 3.

Alternatively, the pressing rotary shaft 42 is rotatably connected to the movable pressing base 41 through a bearing member. Further, the pressing rotating shaft 42 includes a first rotating shaft portion 421 and a first flange portion 422, the first flange portion 422 is disposed at one end of the first rotating shaft portion 421 close to the fixed supporting component 3, the pressing end plate 43 is fixedly mounted on the first flange portion 422, the first rotating shaft portion 421 is mounted in the movable pressing base 41, and a bearing member is disposed between the first rotating shaft portion 421 and the movable pressing base 41.

Optionally, the pressing end plate 43 is provided with a first center yielding hole 431, and the central shaft 2 penetrates through the first center yielding hole 431 and is connected with the pressing rotating shaft 42.

Optionally, the diameter of the pressing end plate 43 is larger than the diameter of the material roll 5 before unwinding.

In this embodiment, the movable pressing assembly 4 further includes a first combination bearing 44, the first combination bearing 44 is sleeved on the pressing rotation shaft 42, the first combination bearing 44 includes a first needle bearing and a first thrust ball bearing, the first needle bearing is used for bearing a radial acting force between the pressing rotation shaft 42 and the movable pressing base 41, and the first thrust ball bearing is used for bearing an axial acting force between the pressing rotation shaft 42 and the movable pressing base 41. In particular, by providing the first combined bearing 44 capable of transmitting both radial and axial forces, the compression rotating shaft 42 can have better bearing capacity and working stability on the one hand, and the movable compression assembly 4 can also have a more compact overall structure on the other hand.

Optionally, the movable pressing component 4 further includes a first deep groove ball bearing 45, and the first deep groove ball bearing 45 is sleeved on the pressing rotating shaft 42 and is located on a side of the first combined bearing 44 away from the fixed supporting component 3. Specifically, by providing the first deep groove ball bearing 45, the pressing rotary shaft 42 can be effectively axially fixed.

Optionally, the movable pressing assembly 4 further includes a first bearing cap 46 and a first pressing sheet 47, the first bearing cap 46 is installed at one end of the movable pressing base 41, which is far away from the fixed supporting assembly 3, and abuts against an outer ring of the first deep groove ball bearing 45, so as to fix the first deep groove ball bearing 45 to the movable pressing base 41; the first pressing piece 47 is installed at one end of the pressing rotating shaft 42 away from the fixed support component 3 and abuts against the inner ring of the first deep groove ball bearing 45 so as to cooperate with the first thrust ball bearing to jointly fix the pressing rotating shaft 42 to the movable pressing seat 41.

In this embodiment, as shown in fig. 4, fig. 5, fig. 8 and fig. 9, the fixed supporting assembly 3 includes a fixed supporting seat 31 and a positioning member, a positioning groove 311 is disposed on the fixed supporting seat 31, one end of the fixed bracket 1 is inserted into the positioning groove 311 and limits the axial displacement of the fixed supporting seat 31, one end of the positioning member is rotatably connected to the fixed supporting seat 31 around an axis, and the other end of the positioning member can abut against the end surface of the material roll 5 and the connection central shaft 2. Specifically, by arranging the positioning piece rotatably connected with the fixed support seat 31, on one hand, reliable limiting can be provided for the material coil 5 along the axial direction, and the material coil 5 provides a positioning reference, so that the positioning precision of the material coil 5 is improved; on the other hand can realize material book 5 and the sound separation of fixed bolster 1, makes the setting element can follow unreeling of material book 5 and rotate together, and then effectively reduces and unreels the in-process and to rolling up dragging of material book 5, effectively improves the ride comfort and the stability of material 5 material loading.

Optionally, the fixed support seat 31 is a cylindrical structure, and the positioning groove 311360 degrees is circumferentially disposed on the circumferential wall of the fixed support seat 31. The center of the fixed support seat 31 is provided with a second rotating shaft hole 312, and the positioning element is inserted into the second rotating shaft hole 312 and is rotatably connected with the second rotating shaft hole 312.

In this embodiment, the positioning member includes a positioning rotating shaft 32 and a positioning end plate 33, the positioning rotating shaft 32 is inserted into the fixed support 31 and is rotatably connected to the fixed support 31 around an axis, the positioning rotating shaft 32 is fixedly connected to the central shaft 2, the positioning end plate 33 is fixedly mounted on the positioning rotating shaft 32, and the positioning end plate 33 can abut against the end surface of the material roll 5. Specifically, the positioning member is set to be the split-type assembly structure of the positioning rotating shaft 32 and the positioning end plate 33, so that the positioning rotating shaft 32 can be ensured to have high forming precision, and the forming difficulty and the overall production difficulty of each part of the positioning member can be reduced.

Alternatively, a positioning end plate 33 is installed on a side of the positioning rotating shaft 32 near the movable compressing assembly 4. Alternatively, the positioning rotation shaft 32 is rotatably connected to the fixed support base 31 through a bearing member. Further, the positioning rotation shaft 32 includes a second rotation shaft portion 321 and a second flange portion 322, the second flange portion 322 is disposed at an end of the second rotation shaft portion 321 close to the movable pressing component 4, the positioning end plate 33 is fixedly mounted on the second flange portion 322, the second rotation shaft portion 321 is mounted in the fixed support seat 31, and a bearing member is disposed between the second rotation shaft portion 321 and the fixed support seat 31.

Optionally, the positioning end plate 33 is provided with a second center yielding hole 331, and the central shaft 2 penetrates through the second center yielding hole 331 to be connected with the supporting rotating shaft.

Optionally, the diameter of the positioning end plate 33 is larger than the diameter of the material roll 5 before unwinding. Further, the diameter of the positioning end plate 33 is equal to the diameter of the pressing end plate 43.

Alternatively, the positioning rotation shaft 32 is fixedly connected with the central shaft 2 through a thread.

Alternatively, the notch of the positioning groove 311 is provided with a guide slope. Specifically, the guide slope can improve the assembly efficiency of the fixing support seat 31 and the fixing bracket 1.

In this embodiment, the fixed supporting component 3 further includes a second combined bearing 34, the second combined bearing 34 is sleeved on the positioning rotating shaft 32, the second combined bearing 34 includes a second needle bearing and a second thrust ball bearing, the second needle bearing is used for bearing the radial acting force between the positioning rotating shaft 32 and the fixed supporting seat 31, and the second thrust ball bearing is used for bearing the axial acting force between the positioning rotating shaft 32 and the fixed supporting seat 31. In particular, by providing the second combined bearing 34 capable of transmitting radial acting force and axial acting force simultaneously, on the one hand, the positioning rotating shaft 32 can have better bearing capacity and working stability, and on the other hand, the whole structure of the fixed supporting component 3 can be more compact.

Optionally, the fixed support component 3 further includes a second deep groove ball bearing 35, and the second deep groove ball bearing 35 is sleeved on the positioning rotating shaft 32 and is located on a side of the second combined bearing 34 away from the movable pressing component 4. Specifically, by providing the second deep groove ball bearing 35, the positioning rotation shaft 32 can be effectively axially fixed.

Optionally, the fixed support assembly 3 further includes a second bearing cap 36 and a second pressing piece 37, the second bearing cap 36 is mounted at an end of the fixed support seat 31 far away from the movable pressing assembly 4, and abuts against an outer ring of the second deep groove ball bearing 35, so as to fix the second deep groove ball bearing 35 to the fixed support seat 31; the second pressing piece 37 is mounted at one end of the positioning rotating shaft 32 far away from the movable pressing component 4 and abuts against the inner ring of the second deep groove ball bearing 35 so as to cooperate with the second thrust ball bearing to fix the positioning rotating shaft 32 to the fixed supporting seat 31.

In this embodiment, as shown in fig. 2, the fixing bracket 1 includes a first support plate 11, a second support plate 12 and a connecting plate 13, and the first support plate 11 is connected to the second support plate 12 through the connecting plate 13. The top end of the second support plate 12 is provided with an inclined surface for supporting the movable pressing component 4, and the inclined surface is attached to the conical surface 411. The top ends of the first support plate 11 and the second support plate 12 are provided with positioning holes 14 which penetrate through along the axis, and the fixed support component 3 and the movable pressing component 4 are both arranged in the positioning holes 14. Specifically, the inclined surface is arranged, so that the inclined surface can be matched with the conical surface 411 for use, and further the movable pressing component 4 is more reliably pressed on one end surface of the material roll 5 in the axial direction, and the other end surface of the material roll 5 is attached to the fixed supporting component 3; through setting up locating hole 14, can carry out radial positioning on the horizontal plane to fixed stay subassembly 3 and activity compress tightly subassembly 4, make the position accuracy and the reliability of center pin 2 higher.

Alternatively, the positioning hole 14 is an open arc hole, and the positioning hole 14 on the first support plate 11 matches with the surface shape of the fixed support seat 31, and the positioning hole 14 on the second support plate 12 matches with the surface shape of the movable pressing seat 41. On the one hand, the opening arc hole can improve the packaging efficiency of fixed stay subassembly 3, activity compress tightly subassembly 4 and fixed bolster 1, and on the other hand, this kind of design that matches with the surface shape of fixed stay seat 31 and activity compress tightly seat 41 can improve the radial positioning reliability and the precision of fixed stay 1 to fixed stay seat 31 and activity compress tightly seat 41.

Alternatively, the groove width of the positioning groove 311 is equal to the thickness of the first support plate 11.

In a second aspect, a wallpaper paving and pasting device is provided, which includes a wallpaper paving and pasting executing mechanism 200 and the unwinding mechanism 100, wherein the unwinding mechanism 100 can provide wallpaper for the wallpaper paving and pasting executing mechanism 200. Specifically, the unreeling mechanism 100 and the wallpaper paving and pasting executing mechanism 200 which are matched with each other can realize the automation of wallpaper feeding and paving and paste, and the whole operation efficiency is improved.

In a third aspect, a wallpaper pasting robot is provided, as shown in fig. 11, which includes a moving chassis 300, a lifting device 400, and the wallpaper pasting device, where the wallpaper pasting device is mounted on the moving chassis 300 through the lifting device 400. Specifically, by arranging the movable chassis 300 and the lifting device 400, the wallpaper paving and pasting robot can complete automatic wallpaper paving and pasting on the whole operation space.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in a descriptive sense and with reference to the illustrated orientation or positional relationship for purposes of descriptive convenience and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An unwinding mechanism is characterized by comprising

Fixing a bracket;

the central shaft is sleeved with a material coil to be loaded;

2. The unwinding mechanism of claim 1, wherein the movable pressing assembly comprises:

3. The unwinding mechanism of claim 2, wherein the pressing member comprises:

4. The unwinding mechanism of claim 3, wherein the movable pressing assembly further comprises:

5. The unwinding mechanism of claim 1, wherein the fixed support assembly comprises:

6. The unwinding mechanism as claimed in claim 5, wherein the positioning member comprises:

7. The unwinding mechanism of claim 6, wherein the fixed support assembly further comprises:

8. The unwinding mechanism as claimed in claim 1, wherein the fixing bracket includes a first supporting plate, a second supporting plate and a connecting plate, and the first supporting plate and the second supporting plate are connected through the connecting plate;

the top end of the second supporting plate is provided with an inclined surface for supporting the movable pressing assembly, and the inclined surface is attached to the conical surface; and/or the top ends of the first supporting plate and the second supporting plate are provided with positioning holes which penetrate through the axis, and the fixed supporting component and the movable pressing component are both arranged in the positioning holes.

9. A wallpaper paving and pasting device is characterized by comprising a wallpaper paving and pasting actuating mechanism and the unreeling mechanism as claimed in any one of claims 1 to 8, wherein the unreeling mechanism can provide wallpaper for the wallpaper paving and pasting actuating mechanism.

10. A wallpaper paving robot, characterized by comprising a moving chassis, a lifting device and the wallpaper paving device of claim 9, wherein the wallpaper paving device is mounted on the moving chassis through the lifting device.